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Durect Corp.

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FY2024 Annual Report · Durect Corp.
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
Form 10-K
 
(Mark One)
☒
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2024
OR
☐
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                      to                     
Commission file number: 000-31615
 
DURECT CORPORATION
(Exact name of registrant as specified in its charter)
 
Delaware
 
94-3297098
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification No.)
 
10240 Bubb Road
Cupertino, CA 95014
(Address of principal executive offices, including zip code)
Registrant’s telephone number, including area code: (408) 777-1417
 
Securities registered pursuant to Section 12(b) of the Act:
 
Title of Each Class
Trading Symbol(s)
Name of Each Exchange on Which Registered
Common Stock $0.0001 par value per share
DRRX
The NASDAQ Stock Market LLC
(The Nasdaq Capital Market)
Securities registered pursuant to Section 12(g) of the Act:
None
 
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    YES  ☐    NO  ☒
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    YES  ☐    NO  ☒
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter 
period than the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    YES  ☒    NO  ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the 
preceding 12 months (or for such shorter period that the registrant was required to submit such files).    YES  ☒    NO  ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of 
“large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
 
Large accelerated filer
☐
 Accelerated filer
☐
Non-accelerated filer
☒  
 Smaller reporting company
☒
Emerging growth company 
☐
 
 
 
 
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided 
pursuant to Section 13(a) of the Exchange Act. ☐
  
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of 
the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.  ☐
 
If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously 
issued financial statements. ☐
 
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers 
during the relevant recovery period pursuant to § 240.10D-1(b). ☐
 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    YES  ☐    NO  ☒
The aggregate market value of the common stock held by non-affiliates of the registrant was approximately $39,696,286 as of June 30, 2024 based upon the closing sale price on The Nasdaq Capital Market 
reported for such date. Shares of Common Stock held by each officer and director and by each person who may be deemed to be an affiliate have been excluded. This determination of affiliate status is not necessarily 
a conclusive determination for other purposes.
There were 31,041,981 shares of the registrant’s Common Stock issued and outstanding as of March 25, 2025.
DOCUMENTS INCORPORATED BY REFERENCE
None.
 

 
DURECT CORPORATION
ANNUAL REPORT ON FORM 10-K
FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024
TABLE OF CONTENTS
 
 
  
 
Page
 
 
PART I
  
ITEM 1.
 Business
 
1
 
 
 
 
 
ITEM 1A.
 Risk Factors
 
29
 
 
 
 
 
ITEM 1B.
 Unresolved Staff Comments
 
61
 
 
 
 
 
ITEM 1C
 Cybersecurity
 
61
 
 
 
 
 
ITEM 2.
 Properties
 
63
 
 
 
 
 
ITEM 3.
 Legal Proceedings
 
63
 
 
 
 
 
ITEM 4.
 Mine Safety Disclosures
 
63
 
 
 
 
 
 
 
PART II
 
 
 
 
 
 
 
ITEM 5.
 Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of 
Equity Securities
 
64
 
 
 
 
 
ITEM 6.
 [Reserved]
 
64
 
 
 
 
 
ITEM 7.
 Management’s Discussion and Analysis of Financial Condition and Results of Operations
 
65
 
 
 
 
 
ITEM 7A.
 Quantitative and Qualitative Disclosures About Market Risk
 
78
 
 
 
 
 
ITEM 8.
 Financial Statements and Supplementary Data
 
79
 
 
 
 
 
ITEM 9.
 Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
 
117
 
 
 
 
 
ITEM 9A.
 Controls and Procedures
 
117
 
 
 
 
 
ITEM 9B.
 Other Information
 
118
 
 
 
 
 
ITEM 9C.  
 Disclosure Regarding Foreign Jurisdiction that Prevent Inspections
 
118
 
 
 
 
 
 
 
PART III
 
 
 
 
 
 
 
ITEM 10.
 Directors, Executive Officers and Corporate Governance
 
119
 
 
 
 
 
ITEM 11.
 Executive Compensation
 
124
 
 
 
 
 
ITEM 12.
 Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
 
138
 
 
 
 
 
ITEM 13.
 Certain Relationships and Related Transactions, and Director Independence
 
141
 
 
 
 
 
ITEM 14.
 Principal Accountant Fees and Services
 
142
 
 
 
 
 
 
 
PART IV
 
 
 
 
 
 
 
ITEM 15.
 Exhibits and Financial Statement Schedules
 
143
 
 
 
 
 
Exhibit Index
 
144
 
 
 
 
 
ITEM 16.
 Form 10-K Summary
 
147
 
 
 
 
 
Signatures
 
148
 

 
1
Part I
 
Item 1. Business.
Overview
DURECT Corporation (the “Company,” “DURECT,” “we,” “us” and “our”) is a biopharmaceutical company advancing novel 
and potentially lifesaving investigational therapies derived from our Epigenetic Regulator Program. Larsucosterol, a new chemical 
entity in clinical development, is the lead candidate in our Epigenetic Regulator Program. An endogenous, orally bioavailable 
small molecule, larsucosterol has been shown in both in vitro and in vivo studies to play an important regulatory role in lipid 
metabolism, stress and inflammatory responses, and cell death and survival.  We are developing larsucosterol for alcohol-
associated hepatitis (“AH”), a life-threatening acute liver condition with no approved therapeutics and 28-Day and 90-Day 
historical mortality rates of 20%-26% and 29%-31%, respectively. After completing a Phase 2a trial in which 100% of AH patients 
treated with larsucosterol survived the 28-Day study period, we conducted a double-blind, placebo-controlled Phase 2b clinical 
trial called AHFIRM (trial in AH to evaluate saFety and effIcacy of laRsucosterol treatMent). Through our AHFIRM trial, we 
evaluated larsucosterol’s potential to reduce mortality or liver transplantation compared to a placebo with or without steroids at 
the investigators’ discretion. In total, we enrolled 307 patients at leading hospitals in the U.S., Australia, E.U. and U.K.  In 
November 2023, we announced topline data from the AHFIRM trial that showed a compelling efficacy signal in favor of 
larsucosterol in the key secondary endpoint of mortality at 90 days.  Both the 30 mg and 90 mg larsucosterol doses 
demonstrated clinically meaningful trends in reduction of mortality at 90 days with mortality reductions of 41% (p=0.068) in the 
30 mg arm and 35% (p=0.124) in the 90 mg arm compared with placebo. The numerical improvement in the primary endpoint of 
mortality or liver transplant at 90 days did not achieve statistical significance for either dose of larsucosterol. Both doses of 
larsucosterol in AHFIRM showed a more pronounced reduction in mortality in patients enrolled in the U.S., representing 76% of 
patients enrolled in the trial.  The reductions in mortality at 90 days were 57% (p=0.014) in the 30 mg arm and 58% (p=0.008) in 
the 90 mg arm compared with placebo in the U.S.  Larsucosterol was safe and well tolerated.  There were fewer treatment-
emergent adverse events (“TEAEs”) in the larsucosterol arms compared with placebo. In May 2024, we announced that the FDA 
granted Breakthrough Therapy Designation ("BTD") to larsucosterol for the treatment of AH. In July 2024, we held a Type B 
meeting with the FDA to discuss the design of our planned Phase 3 clinical trial of larsucosterol in AH that, if successful, could 
support a potential New Drug Application filing.  In September 2024, we provided details on the design of our upcoming 
registrational Phase 3 trial which will evaluate larsucosterol for the treatment of patients with severe AH. The proposed Phase 3 
trial design incorporates feedback from the Type B meeting held with the FDA under the BTD. It is designed as a randomized, 
double-blind, placebo-controlled, multi-center study conducted in the U.S., which will evaluate the safety and efficacy of 
larsucosterol for the treatment of patients with severe AH. The primary outcome measure will be a 90-day survival endpoint. The 
Phase 3 trial is planned to enroll approximately 200 patients randomized in a 1:1 ratio across two arms: (1) larsucosterol (30 mg) 
or (2) placebo, which will be added to the current standard of care, with or without methylprednisolone capsules in the placebo 
patients at the investigators’ discretion. Patients enrolled in the trial will be monitored for an additional 90 days to collect 
additional safety and outcomes data. Our plan is to initiate a Phase 3 clinical trial of larsucosterol in AH, subject to obtaining 
sufficient funding, and present topline results within two years of initiation. We have also investigated larsucosterol in patients 
with metabolic dysfunction-associated steatohepatitis (“MASH”), previously known as non-alcoholic steatohepatitis or NASH with 
encouraging results in a Phase 1b clinical trial and may consider further development of larsucosterol for this and other 
indications. 
 

 
2
NOTE: POSIMIR® is a trademark of Innocoll Pharmaceuticals, Ltd. in the U.S. and a trademark of DURECT Corporation 
outside of the U.S. SABER® and ORADUR™  are trademarks of DURECT Corporation. Other trademarks referred to belong to their 
respective owners.  Full prescribing information for POSIMIR, including BOXED WARNING and Medication Guide can be found at 
www.posimir.com. Full prescribing information for PERSERIS, including BOXED WARNING and Medication Guide can be found at 
www.perseris.com.
 
In addition to our Epigenetic Regulator Program, we developed a novel and proprietary post-surgical pain product called 
POSIMIR® that utilizes our innovative SABER® platform technology to enable continuous sustained delivery of bupivacaine, a 
non-opioid local analgesic, over three days in adults. In February 2021, POSIMIR received FDA approval for post-surgical pain 
reduction for up to 72 hours following arthroscopic subacromial decompression. In December 2021, we entered into a license 
agreement (as amended, the “Innocoll Agreement”) with Innocoll Pharmaceuticals Limited (“Innocoll”), pursuant to which we 
granted to Innocoll an exclusive, royalty-bearing, sublicensable right and license to develop, manufacture and commercialize 
POSIMIR in the United States. On November 8, 2024, we received notice that Innocoll is terminating the Innocoll Agreement, 
effective May 6, 2025.  Innocoll has committed to transfer all data and know-how related to POSIMIR to us, and we are evaluating 
next steps with respect to the commercialization of POSIMIR. We do not expect that this termination will have a material impact 
on our financial statements.
As a result of the assignment of certain patent rights, we have in the past received single digit sales-based earn-out 
payments from U.S. net sales of Indivior UK Limited (“Indivior”)’s PERSERIS® (risperidone) drug for schizophrenia and single-digit 
royalties from net sales of Orient Pharma Co., Ltd. (“Orient Pharma”)’s Methydur Sustained Release Capsules (“Methydur”) for 
the treatment of attention deficit hyperactivity disorder (“ADHD”) in Taiwan. In July 2024, Indivior announced discontinuation of 
sales and marketing for PERSERIS due to the highly competitive market and impending changes that are expected to intensify 
payor management in the treatment category in which PERSERIS participates. We do not expect that this discontinuation will 
have a material impact on our financial statements. 
 
 
Epigenetic Regulator Program and New Chemical Entities
Epigenetic regulation influences the expression of genes through the silencing or initiation of gene activity without 
modifying the DNA sequence. For instance, methylation (the chemical binding of a methyl group) of cytosine nucleotides in 
promoter regions of DNA, facilitated by DNA methyltransferases (“DNMTs”), will generally result in downregulation of gene 
expression, while demethylation (removal of a methyl group) generally results in upregulation. DNA methylation/demethylation 
can thus regulate the expression of relevant genes, especially clusters of master genes that further modulate crucial cellular 
activities.
Our Epigenetic Regulator Program involved a multi-year collaborative effort with the Department of Internal Medicine at 
Virginia Commonwealth University (“VCU”), the VCU Medical Center and the McGuire VA Medical Center. The knowledge base 
supporting this program is a result of more than 30 years of lipid research by Shunlin Ren, M.D., Ph.D., Professor of Internal 
Medicine at the VCU Medical Center. The lead compound from this program, larsucosterol, is an endogenous sulfated oxysterol, 
which acts as an epigenetic regulator. Under a license with VCU, we hold the exclusive royalty-bearing worldwide right to develop 
and commercialize larsucosterol and related molecules discovered in the program.
In March 2021, a peer-reviewed research paper regarding the proposed mechanism of action of larsucosterol was published 
in The Journal of Lipid Research. The research showed that larsucosterol (referred to in the paper as “25HC3S”) bound to and 
inhibited the activities of DNMTs 1, 3a and 3b, enzymes that add methyl groups to DNA (a process called “DNA methylation”), as 
well as reduced DNA hypermethylation. DNMTs 1 and 3a have been shown to be over-expressed in the livers of patients with 
severe AH. As such, by inhibiting DNMTs 1 and 3a activity, larsucosterol may inhibit DNA 

 
3
hypermethylation, thereby modulating the expression of genes and pathways that are involved in crucial cellular activities, 
including those associated with cell death, stress response, and lipid biosynthesis.  These modulations may lead to improved cell 
survival, reduced lipid accumulation or lipotoxicity, minimized inflammation, and enhanced liver regeneration, as has been 
observed in various in vivo animal models and in results from our completed clinical trials in AH and MASH patients. 
The biological activity of larsucosterol has been demonstrated in over a dozen different animal disease models involving 
three animal species. Some of these models represent acute organ injuries (e.g., LPS-induced endotoxin shock, drug-induced 
acute oxidative stress injury, ischemic-reperfusion-induced kidney and brain injury), and some represent chronic metabolic 
disorders (e.g., MASH).
Our major product research and development efforts for larsucosterol are described in the following table: 
img100814744_0.jpg
Alcohol-Associated Hepatitis Program with Injectable Larsucosterol
 
In pharmacokinetic (“PK”) and toxicology studies conducted in mice, rats, rabbits, dogs, minipigs and monkeys, 
larsucosterol has been found to be well tolerated and safe by all routes of administration tested to date. These results support the 
use of larsucosterol in completed and ongoing human safety, PK, proof-of-concept, and efficacy trials. The chronic toxicity of 
larsucosterol was further assessed in a 6-month oral study in rats and in a 9-month oral study in dogs. These studies support the 
use of larsucosterol in long duration human trials. 
Market Opportunity.    AH, an acute form of alcohol-associated liver disease, is associated with long-term heavy intake of 
alcohol and often occurs after a recent period of increased alcohol consumption. AH is typically characterized by recent onset 
jaundice and hepatic failure. A Model of End-Stage Liver Disease (“MELD”) score is a commonly used scoring system to assess 
the severity and prognosis of AH patients.  AH was associated with approximately 164,000 U.S. hospitalizations in 2021 according 
to the available data published for that year. A retrospective analysis of 77 studies published between 1971 and 2016, which 
included data from a total of 8,184 patients, showed the overall mortality from AH was 26% at 28 days, 29% at 90 days and 44% 
at 180 days. A subsequent global study published in December 2021, which included 85 tertiary centers in 11 countries across 3 
continents, prospectively enrolled 2,581 AH patients with a median MELD score of 23.5, reported mortality at 28 and 90 days of 
approximately 20% and 31%, respectively. 

 
4
There are no FDA approved therapies for AH and stopping alcohol consumption is necessary, but frequently not sufficient 
for recovery in many moderate and severe patients. Corticosteroids do not improve survival at 90 days or one year, and have 
demonstrated an increased risk of infection. In addition, fewer than 50% of AH patients are eligible for corticosteroids. According 
to a recent study, the healthcare costs associated with treating hospitalized AH patients and their length of hospital stay are 
significant.
 
Each hospitalization episode with AH 
diagnosis for patients who:
Average length of stay
Average total charges during hospital 
stay
Died during the hospitalization
9 days
$147,000
Were discharged
6 days
$53,000
Marlowe, N., Lam, D., Krebs, W., Lin, W. & Liangpunsakul, S. (2022) Prevalence, co-morbidities, and in-hospital mortality of 
patients hospitalized with alcohol-associated hepatitis in the United States from 2015 to 2019. Alcoholism: Clinical and 
Experimental Research.
 
The rate of AH patients undergoing liver transplantation has increased in recent years, although the total number of such 
transplants is still relatively small and limited by organ availability.  Average charges for a liver transplant exceed $875,000, and 
patients require lifelong immunosuppressive therapy to prevent organ rejection. 
Clinical Program. 
Phase 2b AHFIRM Study
In January 2021, we announced the dosing of the first patient in our Phase 2b AHFIRM study of patients with severe AH.  
AHFIRM was a randomized, double-blind, placebo-controlled, international, multi-center Phase 2b study to evaluate the safety and 
efficacy of larsucosterol in 307 patients with severe AH. The study was comprised of three arms targeting approximately 100 
patients each: (1) placebo; (2) larsucosterol (30 mg); and (3) larsucosterol (90 mg). All patients received supportive care at the 
investigators’ discretion, which for placebo patients may include 32 mg methylprednisolone if prescribed. In order to maintain 
blinding, patients in the two active arms received matching placebo capsules if the investigator prescribed steroids. Patients 
received an IV dose of larsucosterol or placebo (sterile water) on Day 1 and a second identical IV dose on Day 4 if they were still 
hospitalized.  The primary outcome measure was the 90-Day incidence of mortality or liver transplantation for patients treated 
with larsucosterol compared to those treated with placebo.  Secondary endpoints included the difference in 90-Day mortality 
between patients treated with larsucosterol compared to those treated with placebo, the difference in 28-Day mortality or liver 
transplantation for patients treated with larsucosterol compared to those treated with placebo, and the difference in mortality 
between patients treated with larsucosterol compared to those treated with placebo. In November 2023, we announced topline 
results from the AHFIRM trial, comprising 307 patients with severe AH.  
 
Key AHFIRM Trial Topline Data Results:
 
•
Both the 30 mg and 90 mg larsucosterol doses demonstrated clinically meaningful trends in reduction of mortality at 90 
days, the key secondary endpoint, with mortality reductions of 41% (p=0.068) in the 30 mg arm and 35% (p=0.124) in 
the 90 mg arm compared with placebo. 
•
The numerical improvement in the primary endpoint of mortality or liver transplant at 90 days did not achieve statistical 
significance for either dose of larsucosterol.  

 
5
•
Both doses of larsucosterol showed a more pronounced reduction in mortality in patients enrolled in the U.S., 
representing 76% of patients enrolled in the trial.  The reductions in mortality at 90 days were 57% (p=0.014) for the 30 
mg arm and 58% (p=0.008) for the 90 mg arm compared with placebo in the U.S.  
•
Larsucosterol was safe and well tolerated.  There were fewer TEAEs in the larsucosterol arms compared with placebo.  
 
Mortality or Liver Transplantation at 90 Days
 
The primary endpoint for the AHFIRM trial was the reduction in mortality or liver transplantation at 90 days.  The endpoint 
was analyzed using a hierarchical assessment of patient outcomes to calculate a win probability for each of the 30 mg and 90 mg 
dose of larsucosterol compared with placebo. The results for the primary endpoint were not statistically significant for either the 
30 mg or 90 mg doses compared with placebo, though a numerical improvement was observed.
 
Patient Outcomes
 
 
 
Placebo*
 
Larsucosterol
30 mg
 
Larsucosterol
90 mg
Number of patients randomized
 
103
 
102
 
102
Number of patients with 90-day outcome data
 
102
 
99
 
101
 
 
 
 
 
 
 
Deaths (%)
 
25 (24.5%)
 
15 (15.2%)
 
17 (16.8%)
Transplants (%)
 
4 (3.9%)
 
6 (6.1%)
 
9 (8.9%)
Alive & Transplant-free (%)
 
73 (71.6%)
 
78 (78.8%)
 
75 (74.3%)
 
* One subject in the placebo group was confirmed alive at Day 90 but transplant status unknown. One patient received a liver 
transplant and subsequently died.
 
Win Probability Analysis
 
 
 
Larsucosterol 30 mg vs. Placebo
 
Larsucosterol 90 mg vs. Placebo
 
 
Placebo
 
30 mg
 
Placebo
 
90 mg
Win Probability % at 90 days
 
15.8%
 
23.6%
 
19.2%
 
23.1%
p-value
 
 
 
0.196
 
 
 
0.533
 
1 Win probability was calculated based on the hierarchy of alive and transplant-free being superior to transplant and death and 
transplant being superior to death.  Comparisons of the same outcome were included in the denominator as ties.  
 
Mortality at 90 Days
 
Mortality at 90 days was a key secondary endpoint for the AHFIRM trial.  In this analysis, the 30 mg and 90 mg doses of 
larsucosterol showed numerical trends toward a clinically meaningful survival benefit with 90-day mortality reductions of 
approximately 41% and 35%, respectively, when compared to placebo, although these results were not statistically significant.  
 
Group
 
Mortality at 90 Days 
 % Reduction vs. Placebo  
Difference vs. Placebo 
 
p-value
Larsucosterol 30 mg (n=102)
 
15.3%
 
-40.7%
 
-10.5%
 
0.068
Placebo (n=103)
 
25.8%
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Larsucosterol 90 mg (n=102)
 
16.2%
 
-34.9%
 
-8.7%
 
0.124
Placebo (n=103)
 
24.9%
 
 
 
 
 
 
 
1

 
6
Mortality at 90 Days (U.S. patients)  
 
When further analyzed by geography, both the 30 mg and 90 mg doses showed an enhanced survival benefit at 90 days 
with reductions in 90-day mortality of 57% and 58%, respectively, in patients enrolled in the U.S., which represented 76% of the 
total patients enrolled.  
 
Group
 
Mortality at 90 Days
 % Reduction vs. Placebo  
Difference vs. Placebo
 
p-value
Larsucosterol 30 mg (n=76)
 
12.3%
 
-56.8%
 
-16.1%
 
0.014
Placebo (n=78)
 
28.5%
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Larsucosterol 90 mg (n=78)
 
11.7%
 
-58.1%
 
-16.2%
 
0.008
Placebo (n=78)
 
27.9%
 
 
 
 
 
 
 
Safety and Tolerability
 
Both the 30 mg and 90 mg doses of larsucosterol were well tolerated.  There were fewer TEAEs in the larsucosterol arms 
compared with placebo. 
 
 
 
Placebo
 
Larsucosterol
30 mg
 
Larsucosterol
90 mg
Number of TEAEs
 
721
 
545
 
567
 
Phase 2a clinical trial
In 2019, we completed a Phase 2a clinical trial evaluating safety and PK of intravenously  (“IV”) infused larsucosterol in 
patients with moderate and severe AH.  Severity of AH was determined by MELD scores with moderate defined as MELD 11-20 
and severe as MELD 21-30. This was an open label, dose escalation (30 mg, 90 mg and 150 mg), multi-center U.S. study, 
designed to be conducted in two sequential parts.  Part A included patients with moderate AH and Part B included patients with 
severe AH. 
In this Phase 2a trial, dose escalation was permitted following review of safety and PK results of the prior dose level by a 
Dose Escalation Committee. The target number of patients for the study was 4 per dose group. Final enrollment included 19 
patients with moderate (7 of 19) and severe AH (12 of 19), who received IV larsucosterol at 30 mg, 90 mg, or 150 mg doses. 
Eight patients (four moderate and four severe) were dosed at 30 mg, seven patients (three moderate and four severe) were 
dosed at 90 mg and four patients (all severe) were dosed at 150 mg.  After being discharged on Day 2, one patient did not return 
for the scheduled Day 7 and Day 28 follow-up visits; therefore Lille, bilirubin and MELD data reported below are based on 18 
patients. The objectives of this study included assessment of safety, PK and pharmacodynamic signals, including liver 
biochemistry, biomarkers and prognostic scores, including the Lille score, following larsucosterol treatment.  
In November 2019, the results from this Phase 2a clinical trial of larsucosterol in AH were presented as a late-breaking oral 
presentation at The Liver Meeting®.  The study summary results were also selected for inclusion in the ‘Best of The Liver Meeting’ 
presentation in the alcohol-related liver disease category.  
All 19 patients treated with larsucosterol in this trial survived the 28-day follow-up period and there were no drug-related 
serious adverse events. Using an alternative measure of AH severity to MELD, Maddrey’s Discrimination Function (“DF”), 15 of 
the 19 patients had DF scores of 32 or greater, indicating that they had severe AH. Patients treated with larsucosterol had a 
statistically significant reduction from baseline in bilirubin at Day 7 and Day 28, and MELD at Day 28. Lille scores, which are used 
in clinical practice to help determine the prognosis and response of AH patients after 7 days of treatment, were also statistically 
significantly lower than those from a well-matched group of patients in a contemporary trial as well as several published historical 
controls.  74% of all larsucosterol treated patients and 67% of those with severe AH were discharged from the hospital within 4 
days after receiving a single dose of larsucosterol. 

 
7
 
In the Phase 2a study of larsucosterol in AH, larsucosterol was well tolerated at all doses tested.  There were no drug-
related serious adverse events and only three adverse events designated as possibly or probably related to larsucosterol: one 
occurrence of moderate generalized pruritus, one mild rash and one grade two alkaline phosphatase elevation.  There were no 
discontinuations, early withdrawals or termination of study drug or study participation due to adverse events.  All patients treated 
with larsucosterol survived through the 28-Day follow-up period. Drug exposures were dose proportional and were not affected by 
the severity of the disease.
Fast Track Designation and Breakthrough Therapy Designation 
In December 2020, we announced that the FDA had granted larsucosterol Fast Track Designation for the treatment of AH.  
The FDA grants Fast Track Designation to facilitate development and expedite the review of therapies with the potential to treat a 
serious condition where there is an unmet medical need. A therapeutic that receives Fast Track Designation may benefit from 
early and frequent communication with the agency in addition to a rolling submission of the marketing application, with the 
objective of getting important new therapies to patients more quickly. In May 2024, we announced that the FDA granted BTD to 
larsucosterol for the treatment of AH.
 
Phase 3 clinical trial design
 
In July 2024, we held a Type B meeting with the FDA to discuss the design of our planned Phase 3 clinical trial of 
larsucosterol in AH that, if successful, could support a potential New Drug Application filing.  In September 2024, we provided 
details on the design of our upcoming registrational Phase 3 trial which will evaluate larsucosterol for the treatment of patients 
with severe AH. The proposed Phase 3 trial design incorporates feedback from the Type B meeting held with the FDA under the 
BTD. It is designed as a randomized, double-blind, placebo-controlled, multi-center study conducted in the U.S., which will 
evaluate the safety and efficacy of larsucosterol for the treatment of patients with severe AH. The primary outcome measure will 
be a 90-day survival endpoint. The Phase 3 trial is planned to enroll approximately 200 patients randomized in a 1:1 ratio across 
two arms: (1) larsucosterol (30 mg) or (2) placebo, which will be added to the current standard of care, with or without 
methylprednisolone capsules in the placebo patients at the investigators’ discretion. Patients enrolled in the trial will be 
monitored for an additional 90 days to collect additional safety and outcomes data. Our plan is to initiate a Phase 3 clinical trial of 
larsucosterol in AH, subject to obtaining sufficient funding, and present topline results within two years of initiation.
 
Chronic Liver Disease Program with Orally Administered Larsucosterol
Market Opportunity.   Metabolic dysfunction-associated steatotic liver disease (“MASLD”) is the most common form of 
chronic liver disease in both children and adults.  It is estimated that MASLD, also known as nonalcoholic fatty liver disease 
(NAFLD), affects approximately 35% to 50% of adults and 5-10% of children in North America. Metabolic dysfunction-associated 
steatohepatitis (“MASH”), also known as nonalcoholic steatohepatitis or NASH, a more severe and progressive form of MASLD, is 
one of the most common chronic liver diseases worldwide, with an estimated prevalence of 3-5% globally. In addition to these 
liver diseases, there are a number of orphan liver diseases for which we may seek to develop larsucosterol.
Clinical Program.   In 2020, we completed a Phase 1b randomized, multi-center, and open-label clinical study in the United 
States to evaluate safety, PK and signals of biological activity of larsucosterol in MASH patients with stage 1-3 fibrosis. 
Larsucosterol (at doses of 50 mg QD, 150 mg QD and 300 mg BID) was administered orally for 28 days with 20 patients or more 
per dose group for a total of 65 patients in the trial. Key endpoints included safety and PK, and clinical chemistry/efficacy signals, 
such as liver enzymes (e.g., ALT, AST and GGT (each as defined below)), serum lipids (e.g., triglycerides), biomarkers (e.g., CK-
18s, inflammatory cytokines), and insulin resistance (i.e., HOMA-IR), as well as liver fat content and liver stiffness by imaging 
(e.g., MRI-PDFF (as defined below) and FibroScan®). 

 
8
Both the 50 mg and 600 mg dose groups showed a statistically significant median reduction at Day 28 from baseline of 
serum alanine aminotransferase (“ALT”) levels at -16% and -17%, respectively. The 600 mg dose group also showed statistically 
significant median reductions at Day 28 from baseline of serum aspartate aminotransferase (“AST”) (-18%) and gamma-glutamyl 
transferase (“GGT”) (-8%), and the 50 mg dose group had a statistically significant reduction at Day 28 from baseline in liver 
stiffness as measured by Fibroscan® (-10%). 
Patients in the 50 mg or 150 mg dose groups also had statistically significant median reduction at Day 28 from baseline of 
serum triglycerides (-13% in the 50 mg group) or LDL-C (-11% in the 150 mg group). Patients with elevated baseline triglycerides 
(≥200 mg/dL; n=16) across all dose groups had a median reduction at Day 28 from baseline of -24% (p <0.01).  Furthermore, 
patients in the 50 mg and 150 mg groups had 22% and 18%, respectively, median reductions (not statistically significant) of 
HOMA-IR from baseline respectively after 4 weeks of daily oral dosing of larsucosterol. The 600 mg group did not show a change 
in HOMA-IR.
At Day 28, 43% of patients in all three dose groups showed greater than or equal to 10% liver fat reduction from baseline 
as measured by magnetic resonance imaging - proton density fat fraction ("MRI-PDFF"). In this subgroup, there was a significant 
reduction from baseline in median liver fat content (-18%, -19%, and -23%, in the 50 mg, 150 mg and 600 mg groups, 
respectively). The reduction of liver fat content was accompanied by a significant median reduction from baseline of serum ALT 
(-21%, -19%, and -32%, in the 50 mg, 150 mg and 600 mg groups, respectively), as well as both CK-18, M30 and M65 (each as 
defined below) in the 50 mg and 600 mg groups.
Larsucosterol was well tolerated at all three doses evaluated. There were no serious adverse events reported during the 
study, and no discontinuations, early withdrawals or termination of study drug or study participation due to adverse events. PK 
parameters after repeat dosing were comparable to those after a single dose (from a prior study), indicating no accumulation of 
the drug after repeat dosing.  
We have completed multiple Phase 1 trials in healthy subjects with orally administered larsucosterol. These include single-
ascending-dose and multiple-ascending-dose studies as well as a food effect study. In all these studies larsucosterol was well-
tolerated at all dose levels, with no serious treatment-related adverse events reported. Dose-related increases in plasma 
concentrations were observed and no accumulation in plasma concentrations or food effects were observed with repeat dosing.  
We also conducted a Phase 1b trial in cirrhotic and non-cirrhotic MASH patients and matched control subjects (“MCS”) 
(matched by age, body mass index and gender with normal liver function) utilizing orally administered larsucosterol. This was an 
open-label, single-ascending-dose safety and PK study conducted in Australia in two successive dose cohorts (first a low dose of 
50 mg and then a high dose of 200 mg). Both cohorts consisted of 10 MASH patients and 6 MCS. Data from this study were 
presented at the International Liver Congress™ 2017 organized by the European Association for the Study of the Liver (EASL) in 
Amsterdam in April 2017. All patients and MCS in this study tolerated larsucosterol well.  One patient (with a prior history of 
arrhythmia and an ongoing viral infection) in the high dose cohort experienced a serious adverse event (i.e., shortness of breath), 
which occurred without unusual biochemical changes and resolved without intervention but was considered possibly treatment 
related by the physician due to its temporal association with dosing.  In both low and high dose cohorts, the PK parameters were 
comparable between the MASH patients and the MCS.  In addition, the systemic exposure following the low and high doses of 
larsucosterol was dose dependent.

 
9
While this study was not designed to assess efficacy, we observed statistically significant reductions from baseline levels of 
several biomarkers after both doses of larsucosterol. A single oral dose of larsucosterol significantly reduced the levels of both 
full-length (“M65”) and cleaved (“M30”) cytokeratin-18 (“CK-18”), bilirubin, hsCRP, and IL-18 in these subjects.  The mean 
reduction of full-length CK-18 (a generalized cell death marker) at the measured time point of greatest effect (12 hours after 
dosing) was 33% in the low dose cohort and 41% in the high dose cohort.  The mean decrease of cleaved CK-18 (a cell apoptosis 
marker) at the measured time point of greatest effect (12 hours after dosing) was 37% in the low dose cohort and 47% in the 
high dose cohort.  The mean reduction of total bilirubin (a liver function marker) at the measured time point of greatest effect (12 
hours after dosing) was 27% in the low dose cohort and 31% in the high dose cohort. The mean decrease of hsCRP (a marker of 
inflammation) at the measured time point of greatest effect (24 hours after dosing) was 8% in the low dose cohort and 13% in the 
high dose cohort.  The mean decrease of IL-18 (an inflammatory mediator) at the measured time point of greatest effect (8 hours 
after dosing) was 4% in the low dose cohort and 8% in the high dose cohort.
We also conducted a Phase 1b open-label, multi-center U.S. study to evaluate the safety, tolerability, and PK of 
larsucosterol in subjects with moderate (Child-Pugh B scores, n=10) and severe (Child-Pugh C scores, n=7) hepatic function 
impairment ("HI"), and MCS (n=10) with normal hepatic function. Each subject received a single oral dose of 200 mg 
larsucosterol. Results from this study were presented at the International Liver Conference 2021 (EASL).  Larsucosterol was safe 
and well-tolerated by all moderate and severe HI subjects with no adverse events and no dose-limiting toxicity reported 
throughout the study. As expected, clearance of larsucosterol was decreased in HI subjects compared to MCS with normal hepatic 
function, resulting in a 4-10-fold higher drug exposure (Cmax and AUC) in HI subjects. Additionally, a single oral dose of 200 mg 
of larsucosterol in subjects with HI resulted in statistically significant median reductions from baseline of the apoptosis biomarker 
M30 (cCK-18) at 12 hours post-dose.
Collectively, the biological signals observed in MASH and HI patients plus results from our animal models and cell culture 
studies suggest potential therapeutic activity of larsucosterol for patients with liver diseases. However, additional studies are 
required to evaluate the safety and efficacy of larsucosterol, and there is no assurance that these biomarker, clinical chemistry 
and liver imaging effects will be associated with clinically relevant benefits, or that larsucosterol will demonstrate safety or 
efficacy in treating liver diseases in our ongoing or future trials.  
 

 
10
Approved and Commercial Pharmaceutical Products
img100814744_1.jpg
POSIMIR® (bupivacaine solution)
POSIMIR (bupivacaine solution) for infiltration use is a novel and proprietary product that combines the strength of 660 mg 
of bupivacaine base with the innovative SABER platform technology, enabling continuous sustained delivery of a non-opioid local 
analgesic over three days in adults, which we believe coincides with the time period of the greatest need for post-surgical pain 
control in most patients. POSIMIR contains more bupivacaine than any other approved single-dose sustained-release bupivacaine 
product.  At the end of surgery, POSIMIR is administered into the subacromial space under direct arthroscopic visualization, 
where it continuously releases bupivacaine for 72 hours or more. 
In February 2021, the FDA approved POSIMIR for infiltration use in adults for administration into the subacromial space 
under direct arthroscopic visualization to produce post-surgical analgesia for up to 72 hours following arthroscopic subacromial 
decompression. 
In December 2021, we entered into the Innocoll Agreement, pursuant to which we granted to Innocoll an exclusive, royalty-
bearing, sublicensable right and license to develop, manufacture and commercialize POSIMIR in the U.S. with respect to all uses 
and applications in humans. On November 8, 2024, we received notice that Innocoll is terminating the Innocoll Agreement, 
effective May 6, 2025.  Innocoll has committed to transfer all data and know-how related to POSIMIR to us, and we are evaluating 
next steps with respect to the commercialization of POSIMIR. We do not expect that this termination will have a material impact 
on our financial statements.
 
PERSERIS™ (risperidone)
In September 2017, we entered into an agreement with Indivior, under which we assigned to Indivior certain patents that 
may provide further intellectual property protection for PERSERIS, Indivior’s extended-release injectable suspension for the 
treatment of schizophrenia in adults.  Under the terms of the agreement with Indivior, we receive quarterly earn-out payments 
that are based on a single-digit percentage of U.S. net sales of PERSERIS into 2026.  Indivior commercially launched PERSERIS in 
the U.S. in February 2019.  In July 2024, Indivior announced discontinuation of sales and marketing for PERSERIS due to the highly 
competitive market and impending changes that are expected to intensify payor management in the treatment category in which 
PERSERIS participates.

 
11
 
ORADUR™-ADHD Program
We developed a proprietary drug product for the treatment of ADHD called Methydur in collaboration with Orient Pharma, a 
diversified multinational pharmaceutical, healthcare and consumer products company with headquarters in Taiwan. We have 
licensed worldwide Methydur rights to Orient Pharma and they launched Methydur commercially in Taiwan in September 2020. 
Orient Pharma may seek commercialization partners in other countries throughout the world, including China and the U.S. We 
receive a single-digit royalty on sales of Methydur by Orient Pharma or its commercialization partners as well as potential 
milestones and sub-license fees.
 
Our Strategy
Our objective is to develop multiple pharmaceutical products that address significant unmet medical needs and improve 
patients’ quality of life. To achieve this objective, our strategy includes the following key elements:
Complete Clinical Development and Seek Regulatory Approval of Larsucosterol for the Treatment of AH.  In the fourth 
quarter of 2023, we completed our Phase 2b clinical trial (AHFIRM), as described above. In September 2024, we provided details 
on the design of our upcoming registrational Phase 3 trial which will evaluate larsucosterol for the treatment of patients with 
severe AH. Our plan is to initiate a Phase 3 clinical trial of larsucosterol in AH, subject to obtaining sufficient funding, and present 
topline results within two years of initiation.
Maximize the Commercial Potential of Larsucosterol in AH.  We are exploring the best approach to maximize the 
commercial potential of larsucosterol, either by licensing to a commercial entity or continuing to develop and commercialize 
larsucosterol ourselves.  We believe that, if approved in the United States, a highly specialized commercial organization could 
support the commercialization of larsucosterol in the United States.  We believe this market can be effectively addressed with a 
modest-sized commercial organization, including a hospital-focused sales force focused on hospitals. We may also seek strategic 
collaborations to commercialize larsucosterol outside the United States. 
Enable Product Development Through Strategic Agreements.    We believe that entering into selective strategic 
collaborations and other arrangements with respect to our product development programs and technology can enhance the 
success of our product development and commercialization, leverage and exploit the value of our intellectual property portfolio, 
mitigate our risk and enable us to better manage our operating costs. Additionally, such collaborations and arrangements enable 
us to leverage investment by third parties and reduce our net cash burn, while retaining significant economic rights.
Strategic Agreements
We have entered into the following strategic collaboration and other key agreements:
Innocoll Pharmaceuticals Limited. In December 2021, we entered into the Innocoll Agreement, pursuant to which, we 
granted to Innocoll an exclusive, royalty-bearing, sublicensable right and license to develop, manufacture and commercialize 
POSIMIR in the U.S. with respect to all uses and applications in humans. On November 8, 2024, we received notice that Innocoll is 
terminating the Innocoll Agreement, effective May 6, 2025.  Innocoll has committed to transfer all data and know-how related to 
POSIMIR to us, and we are evaluating next steps with respect to the commercialization of POSIMIR. We do not expect that this 
termination will have a material impact on our financial statements.
Virginia Commonwealth University Intellectual Property Foundation. In December 2012, we entered into an exclusive in-
license and research and development agreement with the Virginia Commonwealth University Intellectual Property Foundation 
regarding certain new chemical entities under development through our Epigenetic Regulator Program, including larsucosterol. 
Under this licensing arrangement, we agreed to undertake certain efforts to bring licensed products to market, pay for 
prosecution of related patents and report on progress to VCU. In addition, we are obligated to pay low 

 
12
single-digit percentage patent royalties on net sales of licensed products, subject to annual minimum payments and additional 
milestone payments. This license includes rights to ten patent families. We may terminate this agreement at any time by written 
notice, and VCU may terminate this agreement by written notice if there is an uncured material breach.
Indivior UK Ltd.  In September 2017, we entered into an agreement with Indivior, under which we assigned to Indivior 
certain patents that may provide further intellectual property protection for PERSERIS, Indivior’s extended-release injectable 
suspension for the treatment of schizophrenia in adults.  Under the terms of the agreement with Indivior, we receive quarterly 
earn-out payments that are based on a single digit percentage of U.S. net sales of PERSERIS into 2026.  Indivior commercially 
launched PERSERIS in the U.S. in February 2019. The agreement contains customary representations, warranties and indemnities 
of the parties. In July 2024, Indivior announced discontinuation of sales and marketing for PERSERIS due to the highly competitive 
market and impending changes that are expected to intensify payor management in the treatment category in which PERSERIS 
participates. We do not expect that this discontinuation will have a material impact on our financial statements.
ALZET Commercial Product Line
The ALZET product line consisted of miniature, implantable osmotic pumps and accessories used for research in mice, rats 
and other laboratory animals. On November 22, 2024, we sold the ALZET product line to Lafayette Instrument Co. ("LIC"), a 
portfolio company of Branford Castle Partners II, L.P., a North-American focused private equity firm. Under the terms of the asset 
purchase agreement, LIC paid DURECT $17.5 million in exchange for certain assets and liabilities associated with the ALZET 
product line.
Suppliers
We purchase the larsucosterol drug substance from a third-party manufacturer and larsucosterol clinical trial materials from 
another third-party manufacturer. As needed, we purchase sucrose acetate isobutyrate, a raw material for our SABER-based 
pharmaceutical systems, including Methydur and POSIMIR. We expect that we will continue to be able to obtain sufficient supply 
of these raw materials to meet our needs for the foreseeable future. We do not have in place long term supply agreements with 
respect to all of the components of any of our pharmaceutical product candidates, however, and are subject to the risk that we 
may not be able to procure all required components in adequate quantities with acceptable quality, within acceptable time 
frames or at reasonable cost.
Customers
Our product revenues principally are derived from the sale of certain key excipients that are included in POSIMIR, Methydur 
Sustained Release Capsules, and other products. Until such time that we are able to bring our pharmaceutical product candidates 
to market, if at all, we expect these to be our principal sources of product revenue. We also receive revenue from collaborative 
research and development arrangements with third-party collaborators and earn-out revenue from our patent purchase 
agreement. In 2024, Indivior accounted for 78% of our total revenue.  
Manufacturing
The process for manufacturing our pharmaceutical product candidates is technically complex, requires special skills, and 
must be performed in qualified facilities. We have in the past entered into development and commercial manufacturing 
agreements with third parties for the manufacture of larsucosterol and POSIMIR (currently assigned to Innocoll, with such 
assignment ending effective May 6, 2025). In addition, we have a small multi-discipline manufacturing facility in California that 
we have used to manufacture research and clinical supplies of several of our pharmaceutical product candidates under good 
manufacturing practice (“GMP”), including larsucosterol dosage forms. In the future, we may develop additional manufacturing 
capabilities for our pharmaceutical product candidates and components to meet our demands and those of our third-party 
collaborators by contracting with third party manufacturers. We manufacture certain key components for POSIMIR and Methydur 
at our current California facility.

 
13
Patents and Proprietary Rights
Our success depends in part on our ability to obtain patents, to protect trade secrets, to operate without infringing upon the 
proprietary rights of others and to prevent others from infringing on our proprietary rights. Our policy is to seek to protect our 
proprietary position by, among other methods, filing U.S. and foreign patent applications related to our proprietary molecules and 
technology, inventions and improvements that are important to the development of our business. As of March 25, 2025, we 
owned or exclusively in-licensed over 15 unexpired issued U.S. patents and over 145 unexpired issued foreign patents (which 
include granted European patent rights that have been validated in various EU member states). In addition, we have over 15 
pending U.S. patent applications and over 95 foreign applications pending in Europe, Australia, Japan, Canada and other 
countries.
The patent status of our most advanced programs is as follows:
Our Epigenetic Regulator Program includes seven in-licensed patent families and seven patent families solely owned by us. 
Five patent families each include at least one granted patent that could provide protection until at least 2026, 2032, 2034, 2035, 
and 2037, respectively. The other patent families include pending patent applications, which if granted, could result in patents 
providing protection until at least 2040 to 2044. Patent terms are potentially subject to terminal disclaimers as well as patent 
term adjustments and extensions. Of the fourteen patent families covering larsucosterol and/or other molecules in the Epigenetic 
Regulator Program, two were only filed in the United States, and the other twelve have been filed or likely will be filed both in the 
U.S. and internationally. Since larsucosterol is an endogenous molecule, patent claims directed to larsucosterol compositions of 
matter may be more difficult to maintain or enforce in the United States under Myriad Genetics and other recent court decisions. 
One of the U.S. patents issued before Myriad Genetics, and nine of the larsucosterol U.S. patents issued after Myriad Genetics. 
The granted claims in the U.S. include both composition of matter and method of treatment claims. There can be no assurance 
that the pending patent applications will be granted. Further, there can be no assurance that VCU will not attempt to terminate 
their license to us, which termination could result in the loss of our rights to these patent families.
In the United States, POSIMIR is covered by four patent families. Three patent families include granted patents that could 
provide protection until 2025, 2026 and 2041, respectively. The other patent family includes a pending patent application, which 
if granted, could result in a patent expiring in 2042. In Europe, POSIMIR is covered by a pending application in the patent family 
that could provide protection until at least 2041.
Proprietary rights relating to our planned and potential products will be protected from unauthorized use by third parties 
only to the extent that they are covered by valid and enforceable patents or are effectively maintained as trade secrets. Patents 
owned by or licensed to us may not afford protection against competitors, and our pending patent applications now or hereafter 
filed by or licensed to us may not result in patents being issued. In addition, the laws of certain foreign countries may not protect 
our intellectual property rights to the same extent as do the laws of the U.S.
The patent positions of biopharmaceutical companies involve complex legal and factual questions and, therefore, their 
enforceability cannot be predicted with certainty. Our patents or patent applications, or those licensed to us, if issued, may be 
challenged, invalidated or circumvented, and the rights granted thereunder may not provide proprietary protection or 
competitive advantages to us against competitors with similar technology. Furthermore, our competitors may independently 
develop similar technologies or duplicate any technology developed by us. Because of the extensive time required for 
development, testing and regulatory review of a potential product, it is possible that, before any of our products can be 
commercialized, any related patent may expire or remain in existence for only a short period following commercialization, thus 
reducing any advantage of the patent, which could adversely affect our ability to protect future product development and, 
consequently, our operating results and financial position.

 
14
Because patent applications in the U.S. are typically maintained in secrecy for at least 18 months after filing and since 
publication of discoveries in the scientific or patent literature often lag behind actual discoveries, we cannot be certain that we 
were the first to make inventions or file for protection of inventions set forth in our patents or patent applications.
Our planned or potential products may be covered by third-party patents or other intellectual property rights, in which case 
we may need to obtain a license to continue developing or marketing these products. Any required licenses may not be available 
to us on acceptable terms, if at all. If we do not obtain any required licenses, we could encounter delays in product introductions 
while we attempt to design around these patents, or could find that the development, manufacture or sale of products requiring 
such licenses is foreclosed. Litigation may be necessary to defend against or assert such claims of infringement, to enforce 
patents issued to us, to protect trade secrets or know-how owned by us, or to determine the scope and validity of the proprietary 
rights of others. In addition, interference, derivation, post-grant oppositions, and similar proceedings may be necessary to 
determine rights to inventions in our patents and patent applications. Litigation or similar proceedings could result in substantial 
costs to and diversion of effort by us and could have a material adverse effect on our business, financial condition and results of 
operations. These efforts by us may not be successful.
We may rely, in certain circumstances, on trade secrets to protect our technology. However, trade secrets are difficult to 
protect. We seek to protect our proprietary technology and processes, in part, by confidentiality agreements with our employees 
and certain contractors. There can be no assurance that these agreements will not be breached, that we will have adequate 
remedies for any breach, or that our trade secrets will not otherwise become known or be independently discovered by 
competitors. To the extent that our employees, consultants or contractors use intellectual property owned by others in their work 
for us, disputes may also arise as to the rights in related or resulting know-how and inventions.
Government Regulation
The FDA and comparable regulatory agencies in state and local jurisdictions and in foreign countries impose substantial 
requirements upon the development, manufacture and marketing of pharmaceutical products. These agencies and other federal, 
state and local entities regulate research and development activities and, among other things, the testing, manufacture, quality 
control, safety, effectiveness, labeling, storage, distribution, record keeping, approval, advertising and promotion of our products. 
We believe that our products in development will be regulated as drugs by the FDA rather than as biologics or devices.
 
U.S. Drug Development Process
The standard process required by the FDA under the new drug provisions of the Federal Food, Drug and Cosmetics Act (the 
“FDCA”) before our products in development may be marketed in the U.S. generally involves the following:
•
preclinical laboratory and animal tests performed under current good laboratory practices;
•
submission to the FDA of an Investigational New Drug (“IND”) application which must become effective before human 
clinical trials may begin;
•
approval by an independent institutional review board (“IRB”) or ethics committee before each human clinical trial may 
be initiated;
•
performance of adequate and well-controlled human clinical trials in accordance with IND regulations, code of good 
clinical practice (“GCP”), requirements and other clinical trial-related regulations to establish the safety and efficacy of 
the proposed pharmaceutical product candidates in their intended uses;

 
15
•
submission of an NDA to the FDA for approval of commercial marketing and sale, or of an NDA supplement for approval 
of a new indication if the proposed pharmaceutical product candidate is already approved for another indication;
•
satisfactory completion of an FDA pre-approval inspection of manufacturing facilities and selected clinical investigators 
for their compliance with current good manufacturing practice and current GCPs;
•
if the FDA convenes an advisory committee, satisfactory completion of the advisory committee review;
•
FDA approval of an NDA; and
•
compliance with any post-approval requirements, including the potential requirement to conduct post-approval studies.
Section 505 of the FDCA describes three types of NDAs: (1) an application that contains full reports of investigations of 
safety and effectiveness (section 505(b)(1)); (2) an application that contains full reports of investigations of safety and 
effectiveness but where at least some of the information required for approval comes from studies not conducted by or for the 
applicant and for which the applicant has not obtained a right of reference (section 505(b)(2)); and (3) an application that 
contains information to show that the proposed pharmaceutical product candidate is identical in active ingredient, dosage form, 
strength, route of administration, labeling, quality, performance characteristics and intended use, among other things, to a 
previously approved product (section 505(j)). We expect that our drug candidates deriving from our Epigenetic Regulator 
Program will be evaluated for approval after submission of an NDA under section 505(b)(1).
The testing and approval process require substantial time, effort, and financial resources, and we cannot be certain that 
any approval will be granted on a timely basis, if at all. Preclinical development of a drug candidate can take several years to 
complete, with no guarantee that an IND based on those studies will become effective to even permit clinical testing to begin. 
Even though several of our pharmaceutical product candidates utilize active drug ingredients that are commercially marketed in 
the United States in other dosage forms, we need to establish safety and effectiveness of those active ingredients in the 
formulation and dosage forms that we are developing.
Preclinical tests include laboratory evaluation of the product candidate, its chemistry, formulation and stability, as well as 
animal studies to assess the potential safety and efficacy of the pharmaceutical product candidate. We then submit the results of 
the preclinical tests, together with manufacturing information and analytical data, to the FDA as part of an IND, which must 
become effective before we may begin human clinical trials. Each subsequent new clinical protocol must also be submitted to the 
FDA under the IND. An IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA, within the 30-Day 
time period, raises concerns or questions about the conduct of the trials as outlined in the IND and imposes a clinical hold. In 
such a case, the IND sponsor and the FDA must resolve any outstanding concerns before clinical trials can begin. Our submission 
of an IND may not result in FDA authorization to commence clinical trials. A separate submission to the existing IND must be 
made for each successive clinical trial conducted during product development. Further, an independent IRB at each medical 
center proposing to conduct the clinical trials must review and approve any clinical study as well as the related informed consent 
forms and authorization forms that permit us to use individually identifiable health information of study participants.
Human clinical trials are typically conducted in three sequential phases, which may overlap:
•
Phase 1:    The drug is initially introduced into healthy human subjects or patients and tested for safety, dosage 
tolerance, absorption, metabolism, distribution and excretion.

 
16
•
Phase 2:    The drug is administered to a limited patient population with the target disease or condition in clinical trials 
to identify possible adverse effects and safety risks, to preliminarily evaluate the efficacy of the product candidate for 
specific targeted diseases and to determine dosage tolerance and optimal dosage.
•
Phase 3:    When Phase 2 clinical trials demonstrate that a dosage range of the product candidate is effective and has 
an acceptable safety profile, Phase 3 clinical trials are undertaken and the drug is administered to an expanded patient 
population to further evaluate dosage, clinical efficacy and to further test for safety in well-controlled clinical trials to 
generate enough data to statistically evaluate the efficacy and safety of the product candidate for approval, to 
establish the overall risk-benefit profile of the product candidate, and to provide adequate information for the labeling 
of the product.
In the case of product candidates for severe diseases, such as chronic pain, or life-threatening diseases such as cancer, the 
initial human testing is often conducted in patients with the target diseases or conditions rather than in healthy volunteers. Since 
these patients already have the target disease or condition, these studies may provide initial evidence of efficacy traditionally 
obtained in Phase 2 trials, and thus these trials are frequently referred to as Phase 1/2 clinical trials or Phase 1b trials. Progress 
reports detailing the results of the clinical trials must be submitted at least annually to the FDA and more frequently if serious 
adverse events occur. We cannot be certain that we will successfully complete Phase 1, Phase 2 or Phase 3 clinical trials of our 
pharmaceutical product candidates in development within any specific time period, if at all. Furthermore, the FDA or the IRB or 
the sponsor may suspend clinical trials at any time for various reasons, including a finding that the subjects or patients are being 
exposed to an unacceptable health risk. During the clinical development of product candidates, sponsors frequently meet and 
consult with the FDA to ensure that the design of their studies will likely provide data both sufficient and relevant for later 
regulatory review; however, no assurance of approvability can be given by the FDA.
 
NDA Review and Approval Processes
Assuming successful completion of all testing in accordance with all applicable regulatory requirements, the results of 
product development, preclinical studies and clinical studies are submitted to the FDA as part of an NDA for approval of the 
marketing and commercial shipment of the product. Submission of an NDA may require the payment of a substantial user fee to 
the FDA, and although the agency has defined user fee goals for the time in which to respond to sponsor applications, there can 
be no assurance that the FDA will act in any particular timeframe. The FDA may deny approval of an NDA if the applicable 
regulatory criteria are not satisfied or may require additional clinical trials be conducted. Even if such data is submitted, the FDA 
may ultimately decide that the NDA does not satisfy the criteria for approval. An NDA may be approved with significant 
restrictions on its labeling, marketing and distribution under a Risk Evaluation and Mitigation Strategy or otherwise that could 
restrict the commercial applications of a product or impose costly procedures in connection with the commercialization or use of 
the product. Once issued, the FDA may withdraw product approval if ongoing regulatory standards are not maintained or if safety 
problems occur after the product reaches the market. Requirements for additional Phase 4 studies (post approval marketing 
studies) to confirm safety and effectiveness in a broader commercial use population may be imposed as a condition of marketing 
approval. In addition, the FDA may require testing and surveillance programs to monitor the effects of approved products which 
have been commercialized, and the FDA has the power to require changes in labeling or to prevent further marketing of a 
product based on the results of these post-marketing programs. Any comparative claims comparing a product to other dosage 
forms or competitive products typically need to be supported by two adequate and well-controlled head-to-head clinical trials.
Satisfaction of FDA requirements or similar requirements of state, local and foreign regulatory agencies typically takes 
several years and the actual time required may vary substantially, based upon the type, complexity and novelty of the 
pharmaceutical product and of the disease or condition. Government regulation may delay or prevent marketing of potential 
products for a considerable period of time and impose costly procedures upon our activities. We cannot be certain that the FDA 
or any other regulatory 

 
17
agency will grant approval for any of our pharmaceutical products under development on a timely basis, if at all. Success in 
preclinical or early-stage clinical trials does not assure success in later stage clinical trials. Targets and pathways identified in 
vitro may be determined to be less relevant in clinical studies and results in animal model studies may not be predictive of 
human clinical results. Furthermore, data obtained from clinical activities is not always conclusive and may be susceptible to 
varying interpretations, which could delay, limit or prevent regulatory approval. Evolving safety concerns can result in the 
imposition of new requirements for expensive and time-consuming tests, such as for QT interval cardiotoxicity testing. Even if a 
product receives regulatory approval, the approval may be significantly limited to specific indications. Further, even after 
regulatory approval is obtained, any problems associated with a product may result in restrictions on the product or even 
complete withdrawal of the product from the market. Any pharmaceutical products that we may develop and obtain approval for 
would also be subject to adverse findings of the active drug ingredients being marketed in different dosage forms and 
formulations. Delays in obtaining, or failures to obtain regulatory approvals would have a material adverse effect on our business. 
Marketing our pharmaceutical products abroad will require similar regulatory approvals and is subject to similar risks. In addition, 
we cannot predict what adverse governmental regulations may arise from future U.S. or foreign governmental action.
 
Expedited Development and Review Programs
There are several FDA programs intended to help facilitate the development of new drugs that meet certain criteria. 
Specifically, new drugs are eligible for Fast Track designation if they are intended to treat a serious or life-threatening condition 
and demonstrate the potential to address unmet medical needs for the condition. Fast Track designation applies to the 
combination of the product and the specific indication for which it is being studied. The sponsor of a new drug may request the 
FDA to designate the drug as a Fast Track product at any time during the clinical development of the product. Under a Fast Track 
designation, the FDA may consider for review sections of the marketing application on a rolling basis before the complete 
application is submitted, if the sponsor provides a schedule for the submission of the sections of the application, the FDA agrees 
to accept sections of the application and determines that the schedule is acceptable, and the sponsor pays any required user 
fees upon submission of the first section of the application.
A product candidate is eligible for priority review if it has the potential to provide safe and effective therapy where no 
satisfactory alternative therapy exists or a significant improvement in the treatment, diagnosis or prevention of a disease 
compared to marketed products. The FDA will attempt to direct additional resources to the evaluation of an application for a new 
drug or biological product designated for priority review to facilitate the review. Under priority review, the FDA’s goal is to review 
an application in six months once it is filed, compared to ten months for a standard review. Priority review designation does not 
change the scientific/medical standard for approval or the quality of evidence necessary to support approval.
Additionally, a product candidate that is being studied for safety and effectiveness in treating serious or life-threatening 
illnesses and provides meaningful therapeutic benefit over existing treatments may receive accelerated approval, which means 
that it may be approved on the basis of adequate and well-controlled clinical trials establishing that the product has an effect on 
a surrogate endpoint that is reasonably likely to predict a clinical benefit, or on the basis of an effect on an intermediate clinical 
endpoint other than survival or irreversible morbidity, taking into account the severity, rarity, or prevalence of the condition and 
the availability or lack of alternative treatments. As a condition of approval, the FDA may require that a sponsor of a drug 
receiving accelerated approval perform adequate and well-controlled post-marketing clinical trials with due diligence and, under 
the Food and Drug Omnibus Reform Act of 2022 (“FDORA”), the FDA is permitted to require, as appropriate, that such trials be 
underway prior to approval or within a specific time period after the date of approval for a product granted accelerated approval. 
In addition, for products being considered for accelerated approval, unless otherwise informed by the FDA, the FDA generally 
requires that all advertising and promotional materials intended for dissemination or publication within 120 days following 
marketing approval be 

 
18
submitted to the agency for review during the pre-approval review period, and that after 120 days following marketing approval, 
all advertising and promotional materials must be submitted at least 30 days prior to the intended time of initial dissemination or 
publication. Under FDORA, the FDA has increased authority for expedited procedures to withdraw approval of a drug or indication 
approved under accelerated approval if, for example, the confirmatory trial fails to verify the predicted clinical benefit of the 
product.
A product may also be eligible for receipt of a Breakthrough Therapy designation under the provisions of the Food and Drug 
Administration Safety and Innovation Act (“FDASIA”). The Breakthrough Therapy designation is intended to expedite the FDA’s 
review of a potential new drug for serious or life-threatening diseases where “preliminary clinical evidence indicates that the drug 
may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints, such as 
substantial treatment effects observed early in clinical development.” The designation of a drug as a Breakthrough Therapy 
provides the same benefits as are available under the Fast Track program, as well as intensive FDA guidance on the product’s 
development program. If a drug is designated as a breakthrough therapy, the FDA will provide more intensive guidance on the 
drug development program and expedite its review. Fast Track designation, priority review, accelerated approval and 
Breakthrough Therapy designation do not change the standards for approval, but they may expedite the development or 
approval process.
 
Orphan Drug Designation and Exclusivity
Under the Orphan Drug Act, the FDA may grant orphan drug designation to drugs intended to treat a rare disease or 
condition, which is generally a disease or condition that affects fewer than 200,000 individuals in the United States, or 200,000 or 
more individuals in the United States and for which there is no reasonable expectation that the cost of developing and making 
the product available in the United States for this type of disease or condition will be recovered from sales of the product. Orphan 
drug designation must be requested before submitting an NDA. After the FDA grants orphan drug designation, the identity of the 
therapeutic agent and its potential orphan use are disclosed publicly by the FDA. Orphan drug designation does not convey any 
advantage in or shorten the duration of the regulatory review and approval process. If a product that has orphan drug 
designation subsequently receives FDA approval for the disease or condition for which it has such designation, the product is 
entitled to orphan drug exclusivity, which means that the FDA may not approve any other applications to market the same drug 
for the same indication, except in limited circumstances, for seven years. These circumstances are an inability to supply the drug 
in sufficient quantities or a situation in which a new formulation of the orphan drug has shown superior safety or efficacy or a 
major contribution to patient care. Competitors, however, may receive approval of either a different product for the same 
indication or the same product for a different indication but that could be used off-label in the orphan indication. Orphan drug 
exclusivity could also block the approval of one of our products for seven years if a competitor obtains earlier approval of the 
same product, as defined by the FDA, for the same indication we are seeking approval, or if our product is determined to be 
contained within the scope of the competitor’s product for the same indication or disease. If we pursue marketing approval for an 
indication broader than the orphan drug designation we have received, we may not be entitled to orphan drug exclusivity. 
Orphan drug status in the European Union (“EU”) has similar, but not identical, requirements and benefits.
 
Post-Approval Regulation
Any pharmaceutical products manufactured or distributed by us pursuant to FDA approvals are subject to pervasive and 
continuing regulation by the FDA, including record-keeping requirements and reporting of adverse experiences with the product 
or the active pharmaceutical ingredient or other components of the product. The FDA may also require post-approval clinical or 
non-clinical trials.  Drug manufacturers and their subcontractors are required to register their establishments with the FDA and 
state agencies, and are subject to periodic unannounced inspections by the FDA and state agencies for 

 
19
compliance with good manufacturing practices, which impose procedural and documentation requirements upon us and our third-
party manufacturers. We cannot be certain that we or our present or future suppliers will be able to comply with the GMP 
regulations and other FDA regulatory requirements.
The FDCA strictly regulates drug product marketing, prohibits manufacturers from marketing drug products for off-label use 
and regulates the distribution of drug samples. The FDA has actively enforced regulations prohibiting the marketing of products 
for unapproved uses, and federal and state authorities are also actively litigating against sponsors who promote their drugs for 
unapproved uses under various fraud and abuse and false claims act statutes. We and our products are also subject to a variety 
of state laws and regulations in those states or localities where our products are or will be marketed. Any applicable state or local 
regulations may hinder our ability to market our products in those states or localities. We are also subject to numerous federal, 
state and local laws relating to such matters as safe working conditions, manufacturing practices, environmental protection, fire 
hazard control, and disposal of hazardous or potentially hazardous substances. We may incur significant costs to comply with 
such laws and regulations now or in the future.
The FDA’s policies may change and additional government regulations may be enacted which could prevent or delay 
regulatory approval of our product candidates. Moreover, increased attention to the containment of health care costs in the U.S. 
and in foreign markets could result in new government regulations that could have a material adverse effect on our business. We 
cannot predict the likelihood, nature or extent of adverse governmental regulation that might arise from future legislative or 
administrative action, either in the U.S. or abroad.  
The Drug Enforcement Administration ("DEA") regulates chemical compounds as Schedule I, II, III, IV or V substances, with 
Schedule I substances considered to present the highest risk of substance abuse and Schedule V substances the lowest risk. 
Certain active ingredients in ORADUR-Methylphenidate are listed by the DEA as Schedule II under the Controlled Substances Act 
of 1970. Consequently, their manufacture, research, shipment, storage, sale and use are subject to a high degree of oversight 
and regulation. For example, all Schedule II drug prescriptions must be signed by a physician, physically presented to a 
pharmacist and may not be refilled without a new prescription. Furthermore, the amount of Schedule II substances we can obtain 
for clinical trials and commercial distribution is limited by the DEA and our quota may not be sufficient to complete clinical trials 
or meet commercial demand. There is a risk that DEA regulations may interfere with the supply of the drugs used in our clinical 
trials, and, in the future, our ability to produce and distribute our products in the volume needed to meet commercial demand, 
which could negatively impact us and our collaborators.
 
Other Healthcare Laws
In addition to FDA and DEA restrictions on the marketing of pharmaceutical products, other foreign, federal and state 
healthcare regulatory laws restrict business practices in the pharmaceutical industry. These laws include, but are not limited to, 
federal and state anti‑kickback, false claims, data privacy and security, and physician payment and drug pricing transparency 
laws.
The U.S. federal Anti‑Kickback Statute prohibits, among other things, any person or entity from knowingly and willfully 
offering, paying, soliciting, receiving or providing any remuneration, directly or indirectly, overtly or covertly, to induce or in 
return for purchasing, leasing, ordering, or arranging for or recommending the purchase, lease, or order of any good, facility, item 
or service reimbursable, in whole or in part, under Medicare, Medicaid or other federal healthcare programs. The term 
“remuneration” has been broadly interpreted to include anything of value. The Anti‑Kickback Statute has been interpreted to 
apply to arrangements between pharmaceutical and medical device manufacturers on the one hand and prescribers, purchasers, 
formulary managers and beneficiaries on the other hand. Although there are a number of statutory exceptions and regulatory 
safe harbors protecting some common activities from prosecution, the exceptions and safe harbors are drawn narrowly. Practices 
that involve remuneration that may be alleged to be intended to induce prescribing, purchases, or recommendations may be 
subject to 

 
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scrutiny if they do not meet the requirements of a statutory or regulatory exception or safe harbor. Failure to meet all of the 
requirements of a particular applicable statutory exception or regulatory safe harbor does not make the conduct per se illegal 
under the U.S. federal Anti‑Kickback Statute. Instead, the legality of the arrangement will be evaluated on a case‑by‑case basis 
based on a cumulative review of all its facts and circumstances. Several courts have interpreted the statute’s intent requirement 
to mean that if any one purpose of an arrangement involving remuneration is to induce referrals of federal healthcare covered 
business, the statute has been violated. In addition, a person or entity does not need to have actual knowledge of the statute or 
specific intent to violate it in order to have committed a violation. Moreover, a claim including items or services resulting from a 
violation of the U.S. federal Anti‑Kickback Statute constitutes a false or fraudulent claim for purposes of the federal civil False 
Claims Act. The majority of states also have anti‑kickback laws, which establish similar prohibitions and, in some cases, may 
apply to items or services reimbursed by any third‑party payor, including commercial insurers.
The federal false claims laws, including the civil False Claims Act, prohibit, among other things, any person or entity from 
knowingly presenting, or causing to be presented, a false, fictitious or fraudulent claim for payment to, or approval by, the federal 
government, knowingly making, using, or causing to be made or used a false record or statement material to a false or fraudulent 
claim to the federal government, or knowingly making a false statement to avoid, decrease, or conceal an obligation to pay 
money to the U.S. federal government. A claim includes “any request or demand” for money or property presented to the U.S. 
government. Actions under the civil False Claims Act may be brought by the Attorney General or as a qui tam action by a private 
individual in the name of the government. Moreover, a claim including items or services resulting from a violation of the U.S. 
federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the federal civil False Claims Act.
The federal Physician Payments Sunshine Act requires certain manufacturers of drugs, devices, biologics, and medical 
supplies for which payment is available under Medicare, Medicaid, or the Children’s Health Insurance Program, with specific 
exceptions, to report annually to the Centers for Medicare & Medicaid Services (“CMMS”), information related to payments or 
other “transfers of value” made to physicians (defined to include doctors, dentists, optometrists, podiatrists, and chiropractors), 
certain non-physician providers (physician assistants, nurse practitioners, clinical nurse specialists, certified registered nurse 
anesthetists and anesthesiologist assistants, and certified-nurse midwives), and teaching hospitals, and applicable manufacturers 
and applicable group purchasing organizations to report annually to CMMS ownership and investment interests held by physicians 
and their immediate family members. 
There are federal price reporting laws, which require manufacturers to calculate and report complex pricing metrics to 
government programs, and such reported prices may be used in the calculation of reimbursement and/or discounts on approved 
products.
Similar state and local laws and regulations may also restrict business practices in the pharmaceutical industry, such as 
state anti-kickback and false claims laws, which may apply to business practices, including but not limited to, research, 
distribution, sales, and marketing arrangements and claims involving healthcare items or services reimbursed by non-
governmental third-party payors, including private insurers, or by patients themselves; state laws that require pharmaceutical 
companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance 
promulgated by the federal government, or otherwise restrict payments that may be made to healthcare providers and other 
potential referral sources; state laws and regulations that require drug manufacturers to file reports relating to pricing 
information and marketing expenditures or which require tracking gifts, compensation and other remuneration and items of value 
provided to physicians, other healthcare professionals and entities; and state and local laws that require the registration of 
pharmaceutical sales representatives.  Finally, the Physician Self-Referral (“Stark”) Law prohibits physicians from referring 
Medicare or Medicaid patients to providers of “designated health services” with whom the physician or a member of the 
physician’s immediate family has an ownership interest or compensation arrangement, unless a statutory or regulatory exception 
applies.

 
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Violations of any of these laws and other applicable healthcare fraud and abuse laws may be punishable by criminal and 
civil sanctions, including fines and civil monetary penalties, the possibility of exclusion from federal healthcare programs 
(including Medicare and Medicaid), disgorgement and corporate integrity agreements, which impose, among other things, 
rigorous operational and monitoring requirements on companies. Similar sanctions and penalties, as well as imprisonment, also 
can be imposed upon executive officers and employees of such companies.
 
Coverage and Reimbursement
Sales of any pharmaceutical product depend, in part, on the extent to which such product will be covered by third-party 
payors, such as federal, state and foreign government healthcare programs, commercial insurance and managed healthcare 
organizations, and the level of reimbursement for such product by third-party payors. In the United States, no uniform policy 
exists for coverage and reimbursement for pharmaceutical products among third-party payors. Therefore, decisions regarding the 
extent of coverage and amount of reimbursement to be provided are made on a plan-by-plan basis. The process for determining 
whether a third-party payor will provide coverage for a product typically is separate from the process for setting the price of such 
product or for establishing the reimbursement rate that the payor will pay for the product once coverage is approved.
Third-party payors may limit coverage to specific products on an approved list, also known as a formulary, which might not 
include all of the FDA-approved products for a particular indication, or place products at certain formulary levels that result in 
lower reimbursement levels and higher cost-sharing obligation imposed on patients. One third-party payor’s decision to cover a 
particular medical product or service does not ensure that other payors will also provide coverage for the medical product or 
service, and the level of coverage and reimbursement can differ significantly from payor to payor. As a result, the coverage 
determination process will often require us to provide scientific and clinical support for the use of our products to each payor 
separately, which can be a time-consuming process, with no assurance that coverage and adequate reimbursement will be 
applied consistently or obtained in the first instance. Additionally, a third-party payor’s decision to provide coverage for a product 
does not imply that an adequate reimbursement rate will be approved.
Moreover, as a condition of participating in, and having products covered under, certain federal healthcare programs, such 
as Medicare and Medicaid, we may become subject to federal laws and regulations that require pharmaceutical manufacturers to 
calculate and report certain price reporting metrics to the government, such as Medicaid Average Manufacturer Price (“AMP”), 
and Best Price, Medicare Average Sales Price, the 340B Ceiling Price and Non-Federal AMP reported to the Department of Veteran 
Affairs, and with respect to Medicaid, pay statutory rebates on utilization of manufacturers’ products by Medicaid beneficiaries. 
Compliance with such laws and regulations require significant resources and any findings of non-compliance may have a material 
adverse effect on our revenues.
 
Healthcare Reform
In the United States and certain foreign jurisdictions, there have been, and we expect there will continue to be, a number of 
legislative and regulatory changes to the healthcare system. In the United States, by way of example, in March 2010, the Patient 
Protection and Affordable Care Act, as amended by the Health Care Education and Reconciliation Act (collectively, the “Affordable 
Care Act”), was enacted in the United States. Among the provisions of the Affordable Care Act of importance to our potential 
product candidates, the Affordable Care Act: established an annual, nondeductible fee on any entity that manufactures or imports 
certain specified branded prescription drugs and biologic agents; expanded eligibility criteria for Medicaid programs; increased 
the statutory minimum rebates a manufacturer must pay under the Medicaid Drug Rebate Program; created a Medicare Part D 
coverage gap discount program; established a Patient-Centered Outcomes Research Institute to oversee, identify priorities in and 
conduct comparative clinical effectiveness research, along with funding for such research; and established a Center for Medicare 
& Medicaid Innovation at Centers for Medicare & Medicaid Services to test innovative payment and service delivery models to 
lower Medicare and Medicaid spending.

 
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There have been executive, judicial and Congressional challenges to certain aspects of the Affordable Care Act. For 
example, the Tax Cuts and Jobs Act of 2017 included a provision that repealed, effective January 1, 2019, the tax-based shared 
responsibility payment imposed by the Affordable Care Act on certain individuals who fail to maintain qualifying health coverage 
for all or part of a year that is commonly referred to as the “individual mandate.”  On June 17, 2021, the U.S. Supreme Court 
dismissed a challenge on procedural grounds that argued the Affordable Care Act is unconstitutional in its entirety because the 
individual mandate was repealed by Congress. Thus, the Affordable Care Act will remain in effect in its current form. However, it 
is possible that the Affordable Care Act will be subject to additional judicial or Congressional challenges in the future. 
Further, the Affordable Care Act has been subject to various health reform measures. For example, prior to the U.S. 
Supreme Court ruling, on January 28, 2021, the Biden administration issued an executive order that initiated a special enrollment 
period for purposes of obtaining health insurance coverage through the Affordable Care Act marketplace. The executive order 
also instructed certain governmental agencies to review and reconsider their existing policies and rules that limit access to 
healthcare, including among others, reexamining Medicaid demonstration projects and waiver programs that include work 
requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage through Medicaid 
or the Affordable Care Act. In addition, on August 16, 2022, the Inflation Reduction Act of 2022 (the “IRA”) was signed into law, 
which among other things, extends enhanced subsidies for individuals purchasing health insurance coverage in Affordable Care 
Act marketplaces through plan year 2025 and includes several measures intended to lower the cost of prescription drugs and 
related healthcare reforms. It is unclear how such challenges and the healthcare reform measures of the second Trump 
administration will impact the Affordable Care Act. Specifically, the IRA authorizes and directs the U.S. Department of Health and 
Human Services (“HHS”) to set drug price caps for certain high-cost Medicare Part B and Part D qualified drugs, with the initial list 
of drugs to be selected by September 1, 2023, and the first year of maximum price applicability to begin in 2026. The IRA further 
authorizes the HHS to penalize pharmaceutical manufacturers that increase the price of certain Medicare Part B and Part D drugs 
faster than the rate of inflation. On June 30, 2023, the Centers for Medicare and Medicaid Services (“CMS”), issued new guidance 
detailing the requirements and parameters of the first round of price negotiations, to take place during 2023 and 2024, for 
products subject to the “maximum fair price” provision that would become effective in 2026. On August 15, 2024, HHS 
announced the agreed-upon price of the first ten drugs that were subject to price negotiations, although the Medicare drug price 
negotiation program is currently subject to legal challenges. On January 17, 2025, HHS selected fifteen additional products 
covered under Part D for price negotiation in 2025. Each year thereafter more Part B and Part D products will become subject to 
the Medicare Drug Price Negotiation Program . In addition, on December 7, 2023, an initiative to control the price of prescription 
drugs through the use of march-in rights under the Bayh-Dole Act was announced. On December 8, 2023, the National Institute of 
Standards and Technology (“NIST”) published for comment a Draft Interagency Guidance Framework for Considering the Exercise 
of March-In Rights which for the first time includes the price of a product as one factor an agency can use when deciding to 
exercise march-in rights. While march-in rights have not previously been exercised, it is uncertain if that will continue under the 
new framework. The implementation of government-imposed cost containment measures or other healthcare reforms may 
prevent us from being able to generate revenue, attain profitability, or commercialize our product candidates if approved. It is 
currently unclear how any such challenges and other litigation, and the healthcare reform measures of the current U.S. 
presidential administration will impact the Affordable Care Act and our business as well as how the IRA will be effectuated.
Other legislative changes have been proposed and adopted since the Affordable Care Act was enacted. These changes 
include reductions to Medicare payments to providers of up to 2% per fiscal year that will remain in effect through 2031 unless 
additional Congressional action is taken, except for a temporary suspension from May 1, 2020 through March 31, 2022 and 
limited reductions to 1% from April 1, 2022 through June 30, 2022 due to the COVID-19 pandemic with the 2% payment reduction 
having resumed on July 1, 2022. Following the resumption of the sequester, under current legislation, the actual reduction in 
Medicare payments will vary from 1% in 2022 to up to 4% in the final fiscal year of 

 
23
this sequester. Further, the American Taxpayer Relief Act of 2012, which, among other things, further reduced Medicare 
payments to several types of providers and increased the statute of limitations period for the government to recover 
overpayments to providers from three to five years. Additionally, on March 11, 2021, American Rescue Plan Act of 2021 was 
signed into law, which eliminates the statutory Medicaid drug rebate cap, currently set at 100% of a drug’s average manufacturer 
price, for single source and innovator multiple source drugs, which began on January 1, 2024.
Further, there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their 
marketed products, which has resulted in several presidential executive orders, Congressional inquiries and proposed and 
enacted federal and state legislation designed to, among other things, bring more transparency to product pricing, review the 
relationship between pricing and manufacturer patient programs, and reform government program reimbursement 
methodologies for pharmaceutical products. For example, the marketing, pricing and sale of the Company’s products are subject 
to regulation, investigations and legal actions including under the Medicaid Drug Rebate Program under the Affordable Care Act, 
which has increased the statutory minimum rebates a manufacturer must pay under the program as well as a new methodology 
by which rebates are owed for drugs that are inhaled, infused, instilled, implanted or injected. We are also subject to federal and 
state false claims acts, as well as federal and state antitrust and consumer protection laws. Increased scrutiny of health care 
industry business practices in recent years by government agencies and state attorneys general in the U.S., and any resulting 
investigations and prosecutions, carry risk of significant civil and criminal penalties including, but not limited to, debarment from 
participation in such government healthcare programs.
Individual states in the United States have also become increasingly aggressive in passing legislation and implementing 
regulations designed to control pharmaceutical product and medical device pricing, including price or patient reimbursement 
constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in 
some cases, designed to encourage importation from other countries and bulk purchasing. For example, on January 5, 2024, the 
FDA approved Florida’s Section 804 Importation Program (“SIP”) proposal to import certain drugs from Canada for specific state 
healthcare programs. It is unclear how this program will be implemented, including which drugs will be chosen, and whether it 
will be subject to legal challenges in the United States or Canada. Other states have also submitted SIP proposals that are 
pending review by the FDA. Any such approved importation plans, when implemented, may result in lower drug prices for 
products covered by those programs. Legally mandated price controls on payment amounts by third-party payors or other 
restrictions could harm our business, results of operations, financial condition and prospects. In addition, regional healthcare 
authorities and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and 
medical devices to purchase and which suppliers will be included in their prescription drug and other healthcare programs. 
Legally mandated price controls on payment amounts by third-party payors or other restrictions could harm our business, results 
of operations, financial condition and prospects.
These initiatives, as well as other healthcare reform measures that have been adopted and may be adopted in the future, 
may result in more rigorous coverage criteria, new payment methodologies and in additional downward pressure on the price 
that we receive for any approved or cleared product and product candidates, if approved, and could seriously harm our future 
revenues. Any reduction in reimbursement from Medicare, Medicaid, or other government programs may result in a similar 
reduction in payments from private payors. We cannot predict the likelihood, nature or extent of government regulation that may 
arise from future legislation or administrative action, either in the United States or abroad. If we or our partners are slow or 
unable to adapt to new requirements or policies, or if we or our partners are not able to maintain regulatory compliance, our 
products and product candidates may lose any regulatory approval that may have been obtained, which would reduce the 
likelihood that we may achieve or sustain profitability, or be able to enter attractive collaboration agreements, which would 
adversely affect our business.
 

 
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Foreign Regulation
Outside the United States, our ability to market a product is contingent upon receiving a marketing authorization from the 
appropriate regulatory authorities. The requirements governing the conduct of clinical trials, marketing authorization, pricing and 
reimbursement vary widely from country to country. At present, foreign marketing authorizations are applied for at a national 
level, although within the EU regional registration procedures are available to companies wishing to market a product in more 
than one EU member state. If the competent regulatory authority is satisfied that adequate evidence of safety, quality and 
efficacy has been presented, a marketing authorization may be granted. This foreign regulatory approval process involves all of 
the risks associated with FDA approval discussed above and may also include additional risks.
Whether or not we obtain FDA approval for a product, we must obtain the requisite approvals from regulatory authorities in 
non-U.S. countries prior to the commencement of clinical trials or marketing of the product in those countries. Certain countries 
outside of the United States have a process that requires the submission of a clinical trial application (“CTA”) much like an IND 
prior to the commencement of human clinical trials. In the EU, a CTA must be submitted for each trial to the competent health 
authority and to independent ethics committees by national procedure for a single country trial or by EMA submission portal 
Clinical Trials Information System for a multinational study. Once the CTA is approved in accordance with the requirements in the 
concerned countries, clinical trial development may proceed in those countries and are conducted in accordance with GCP and 
other applicable regulatory requirements.
To obtain regulatory approval of an investigational drug under EU regulatory systems, we must submit a marketing 
authorization application (“MAA”). This application is similar to the NDA in the United States, with the exception of, among other 
things, regional and/or country-specific document requirements. Drugs can be authorized in the EU by using the centralized, 
mutual recognition, decentralized or national authorization procedures described below.
The EMA implemented the centralized procedure for the approval of human drugs to facilitate marketing authorizations that 
are valid throughout the EU. This procedure results in a single marketing authorization granted by the European Commission that 
is valid across the EU. Under the centralized procedure, the maximum timeframe for the evaluation of an MAA by the EMA is 210 
days (excluding clock stoppages for requests by the Committee for Medicinal Products for Human Use (“CHMP”) for additional 
written or oral information to be provided by the applicant). A positive opinion on the MAA by the CHMP then needs to be 
endorsed by the European Commission within approximately 67 days. Accelerated assessment might be granted by the CHMP in 
exceptional cases, in which case the EMA ensures that the evaluation for the opinion of the CHMP is completed within 150 days 
(excluding clock stops) and the opinion issued thereafter.
The mutual recognition procedure (“MRP”) for the approval of human drugs is an alternative approach to facilitate 
individual national marketing authorizations within the EU. The MRP may be applied for all human drugs for which the centralized 
procedure is not obligatory. The MRP is based on the principle of the mutual recognition by EU member states of their respective 
national marketing authorizations. Based on a marketing authorization in the reference member state, the applicant may apply 
for marketing authorizations in other member states. In such case, the reference member state shall update its existing 
assessment report about the drug. After the assessment is completed, copies of the report are sent to all member states, 
together with the approved summary of product characteristics, labeling and package leaflet. The concerned member states then 
recognize the decision of the reference member state and the summary of product characteristics, labeling and package leaflet. 
National marketing authorizations shall be granted within 30 days after acknowledgement of the agreement.
Should any member state refuse to recognize the marketing authorization by the reference member state, the member 
states shall make all efforts to reach a consensus. If this fails, the procedure is submitted to an EMA scientific committee for 
arbitration. The opinion of this EMA Committee is then forwarded to the Commission, for the start of the decision making process. 
As in the centralized 

 
25
procedure, this process entails consulting various European Commission Directorates General and the Standing Committee on 
Human Medicinal Products or Veterinary Medicinal Products, as appropriate.
Legislation similar to the Orphan Drug Act has been enacted in other countries outside of the United States, including the 
EU. The orphan legislation in the EU is available for therapies addressing conditions that affect five or fewer out of 10,000 
persons, are life-threatening or chronically debilitating conditions and for which no satisfactory treatment is authorized. The 
market exclusivity period is for ten years, although that period can be reduced to six years if, at the end of the fifth year, 
available evidence establishes that the product does not justify maintenance of market exclusivity.
For other countries outside of the EU, such as non-EU countries in Eastern Europe, Middle-East, Latin America, Japan or 
other countries in Asia, the requirements governing the conduct of clinical trials, product licensing, pricing and reimbursement 
vary. In all cases, again, the clinical trials are conducted in accordance with GCP and the other applicable regulatory 
requirements.
If we fail to comply with applicable foreign regulatory requirements, we may be subject to, among other things, fines, 
suspension of clinical trials, suspension or withdrawal of regulatory approvals, product recalls, seizure of products, operating 
restrictions and criminal prosecution.
Competition
We may face competition from other companies in numerous industries including pharmaceuticals, medical devices and 
drug delivery. 
Competition for larsucosterol, if approved, will depend on the specific indication(s) for which larsucosterol is approved. 
Alfasigma S.p.A., Nterica Bio, Inc., Aldeyra Therapeutics, Inc., Surrozen, Inc. and several academic institutes, including Yale 
University, and others have development plans for products or evaluating marketed products to treat AH. Our current and 
potential competitors may succeed in obtaining patent protection or commercializing products before us. Many of these entities 
have significantly greater research and development capabilities than we do, as well as substantially more marketing, 
manufacturing, financial and managerial resources. These entities represent significant competition for us. Acquisitions of, or 
investments in, competing pharmaceutical or biotechnology companies by large corporations could increase such competitors’ 
financial, marketing, manufacturing and other resources.
Any pharmaceutical products we develop will compete in highly competitive markets. Many of our potential competitors in 
these markets have greater development, financial, manufacturing, marketing, and sales resources than we do and we cannot be 
certain that they will not succeed in developing products or technologies which will render our technologies and products 
obsolete or noncompetitive. In addition, many of those potential competitors have significantly greater experience than we do in 
their respective fields.
Corporate History, Headquarters and Website Information
We were incorporated in Delaware in February 1998. Our principal executive offices are located at 10240 Bubb Road, 
Cupertino, California 95014. Our telephone number is (408) 777-1417, and our website address is www.durect.com. Information 
contained on our website is not a part of this Annual Report on Form 10-K and the inclusion of our website address in this Annual 
Report on Form 10-K is an inactive textual reference only.  We make our annual reports on Form 10-K, quarterly reports on Form 
10-Q, current reports on Form 8-K, proxy statements, and any amendments to these reports or other information filed or 
furnished pursuant to Section 13(a) or 15(d) of the Exchange Act available free of charge on our website as soon as reasonably 
practicable after we file these reports with the Securities and Exchange Commission ("SEC"). The SEC maintains an internet site 
that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the 
SEC. The SEC’s website to access all of this information is www.sec.gov. Our Code of Ethics can be found on our website.

 
26
We also use our website, including the investor relations section of our website, to announce important information about 
us and other matters in order to achieve broad, non-exclusionary distribution of information to the public and to comply with our 
disclosure obligations under Regulation Fair Disclosure. We encourage investors and others to review the information we make 
public in these locations, as such information could be deemed to be material information. Information contained on or accessible 
through our website is not a part of this report, and all website addresses in this report are intended to be inactive textual 
references only.
Human Capital 
Our approach to human capital resource management starts with our mission to advance novel and potentially lifesaving 
investigational therapies derived from our Epigenetic Regulator Program. Our industry exists in a complex regulatory 
environment. The unique demands of our industry, together with the challenges of running an enterprise focused on the 
discovery, development, manufacture and commercialization of innovative medicines, require talent that is highly educated 
and/or has significant industry experience. Additionally, for certain key functions, we require specific scientific expertise to 
oversee and conduct R&D activities and the complex manufacturing requirements for biopharmaceutical products. 
The biopharmaceutical industry is highly competitive and recruiting and retaining employees is critical to the continued 
success of our business.  We are an equal opportunity employer and we are fundamentally committed to creating and 
maintaining a work environment in which employees are treated with respect and dignity. All human resources policies, practices 
and actions related to hiring, promotion, compensation, benefits and termination are administered in accordance with the 
principal of equal employment opportunity, meaning that they are made on the basis of individual skills, knowledge, abilities, job 
performance and other legitimate criteria and without regard to race, color, religion, sex, sexual orientation, gender expression or 
identity, ethnicity, national origin, ancestry, age, mental or physical disability, genetic information, any veteran status, any 
military status or application for military service, or membership in any other category protected under applicable law.  By 
focusing on employee retention and engagement, we also improve our ability to support our clinical trials, our pipeline, our 
platform technologies, business and operations, and also protect the long-term interests of our stockholders. Our success also 
depends on our ability to attract, engage and retain a diverse group of employees.
Our base pay program aims to compensate management and staff members relative to the value of the contributions of 
their role, which takes into account the skills, knowledge and abilities required to perform each position, as well as the experience 
brought to the job. We also provide annual incentive programs to reward our management team and staff members in alignment 
with achievement of Company-wide goals that are established annually and designed to drive aspects of our strategic priorities 
that support and advance our strategy across our Company. Our management team and staff members are eligible for the grant 
of equity awards under our long-term incentive program that are designed to align the experience of these staff with that of our 
stockholders. All management team and staff members also participate in a regular performance measurement process that 
aligns pay to performance and through which they receive performance and development feedback. 
Our benefit programs are also generally broad-based, promote health and overall well-being and emphasize saving for 
retirement. All management team and regular staff members are eligible to participate in the same core health and welfare and 
retirement savings plans. Other employee benefits include employee stock purchase plan, medical plans, dental plans, vacation 
and sick-pay plans, employee assistance programs, flexible spending accounts, life and accident insurance and short and long-
term disability benefits. 
Our Compensation Committee provides oversight of our compensation plans, policies and programs.

 
27
As of March 25, 2025, we had 21 employees, including 9 in research and development and 12 in selling, general and 
administrative. At least 13 of our employees have advanced degrees of some sort (e.g., MD, PhD, DVM, JD, MBA).  The Company 
strives for gender diversity and diversity beyond gender throughout the organization. Of our employees, 43% are male and 57% 
are female.  From time to time, we also employ independent contractors to support our research, development and 
administrative organizations. None of our employees are represented by a collective bargaining unit, and we have never 
experienced a work stoppage. We consider our relations with our employees to be good.
Executive Officers of the Registrant
Our executive officers and their ages as of March 25, 2025 are as follows:
 
Name
 
Age
 
Position
James E. Brown, D.V.M.
 
68
 President, Chief Executive Officer and Director
Timothy M. Papp, M.B.A.
 
49
 Chief Financial Officer
Norman L. Sussman, M.D.
 
72
 Chief Medical Officer
 
James E. Brown, D.V.M., co-founded DURECT in February 1998 and has served as our President, Chief Executive Officer 
and on our Board of Directors since June 1998. He previously worked at ALZA Corporation as Vice President of Biopharmaceutical 
and Implant Research and Development from June 1995 to June 1998. Prior to that, Dr. Brown held various positions at Syntex 
Corporation, a pharmaceutical company, including Director of Business Development from May 1994 to May 1995, Director of 
Joint Ventures for Discovery Research from April 1992 to May 1995, and held a number of positions including Program Director for 
Syntex Research and Development from October 1985 to March 1992. Dr. Brown holds a B.A. from San Jose State University and 
a D.V.M. (Doctor of Veterinary Medicine) from the University of California, Davis where he also conducted post-graduate work in 
pharmacology and toxicology.
Timothy M. Papp, MBA, joined DURECT in July 2022 as Chief Financial Officer and brings over 25 years of corporate 
finance experience to DURECT, including 15 years in the Biopharma sector.  Prior to joining DURECT, he was a Managing Director 
of Healthcare Investment Banking at RBC Capital Markets, LLC from 2020 to 2021.  Previously he was a Managing Director of 
Healthcare Investment Banking at Stifel, Nicolaus & Company, Inc. (“Stifel”), where he worked from 2010 to 2020. Prior to Stifel, 
he was a Vice President of Healthcare Investment Banking at Cowen and Company, LLC (“Cowen”), where he worked from 2007 
to 2010.  Mr. Papp also held positions at KeyBanc Capital Markets Inc. and Rodman & Renshaw LLC prior to joining Cowen.  Mr. 
Papp graduated from Duke University with a Bachelor of Science in economics and earned a Master of Business Administration 
from The Wharton School with a concentration in finance.
Norman L. Sussman, M.D., FAASLD, joined DURECT as Chief Medical Officer in November 2020. He has extensive 
clinical experience and expertise in the field of liver disease and brings over 30 years of clinical research and development 
experience in academia and industry. Prior to joining DURECT he was an Associate Professor of Medicine and Surgery at Baylor 
College of Medicine and a faculty member of Baylor College of Medicine intermittently since 1985. During that time, he served as 
a Principal Investigator for research focused on the assessment and management of acute liver failure and artificial liver support. 
Dr. Sussman gained leadership experience in industry as the founder and Vice President of both Amphioxus Cell Technologies 
from 1995 to 2003 and Hepatix, Inc from 1993 to 1995. Most recently, he has also served in senior leadership roles as a member 
of the Baylor Faculty Senate and as Director of the telehealth program, Project ECHO®, at Baylor St. Luke’s Medical Center. Dr. 
Sussman received his MBBCh from the University of the Witwatersrand in Johannesburg, South Africa. He then completed his 
residency at St. Louis University Hospital and his post-doctoral fellowship at Washington University. He is Board Certified in 
Internal Medicine, Gastroenterology, and Transplant Hepatology. Dr. Sussman is also a Fellow of the American Association of the 
Study of Liver Disease, which is a designation that recognizes his superior level of professional achievement in the field of 
hepatology.

 
29
Item 1A. Risk Factors.
In addition to the other information in this Annual Report on Form 10-K, a number of factors may affect our business and 
prospects. These factors include but are not limited to the following, which you should consider carefully in evaluating our 
business and prospects. If any of the following risks actually occur, our business, financial condition, results of operations and 
growth prospects may be materially and adversely affected.
Summary
•
We will require and may have difficulty or be unsuccessful in raising needed capital in the future to continue to operate 
as a going concern
•
We are dependent on the success of larsucosterol and the path to regulatory approval is uncertain; we cannot be 
certain that it will receive regulatory approval or be commercialized
•
The FDA or other regulatory agencies may require more information or clinical studies for our product candidates, and 
our product candidates may never be approved
•
We contract with third parties for the manufacture of larsucosterol and expect to continue to do so for any required 
additional clinical trials as well as the commercialization of larsucosterol. Our reliance on third parties increases the risk 
that submissions for regulatory approval of larsucosterol may be delayed or that we will not have sufficient quantities 
of larsucosterol available at an acceptable cost, which could delay, prevent or impair our development and 
commercialization efforts of larsucosterol
•
Safety data and indications of activity from completed Phase 1 and 2 clinical trials of larsucosterol may not predict 
safety, activity or therapeutic efficacy in future trials
•
Future clinical trials for larsucosterol may be delayed and may not demonstrate efficacy or safety
•
The FDA’s Fast Track Designation and Breakthrough Therapy Designation of larsucosterol may not lead to a faster 
development or regulatory review or approval 
•
Open-label trials of larsucosterol in AH and MASH have inherent limitations
•
We may incur additional costs or experience delays in completing, or ultimately be unable to complete, the 
development and commercialization of our product candidates
•
Key components of larsucosterol are provided by a limited number of suppliers, and supply shortages or loss of these 
suppliers could result in delays or interruptions in supply or increased costs
•
Macroeconomic uncertainties have in the past impacted and may continue to adversely impact our business, including 
posing challenges to conducting clinical trials 
•
We do not control the commercialization of PERSERIS or Methydur
•
Our ability to obtain revenues from the commercialization of POSIMIR and PERSERIS is uncertain
•
For certain of our product candidates, we depend to a large extent on third-party collaborators, and we have limited or 
no control over their development, sales, distribution, disclosure, regulatory strategy or potential commercialization
•
Our business strategy includes relying on third parties to support development, clinical trials, manufacturing and 
commercialization of product candidates 
•
Cancellation of third-party collaborations may adversely affect potential economic benefits

 
30
•
Our cash flows are likely to differ from our reported revenues and earnings
•
Failure to comply with governmental regulations could materially harm our business
•
We have a history of operating losses, expect to continue to have losses and may never achieve or maintain 
profitability and we may not successfully manage our Company through varying business cycles 
•
We depend upon key personnel who may terminate their employment with us at any time, and we may not be able to 
attract and retain sufficient qualified personnel on a timely basis, if at all
•
Cyber-attacks or other failures in telecommunications or information technology systems could result in information 
theft, data corruption and significant disruption of our business operations
•
Our business involves environmental risks and risks related to handling regulated substances
•
If we are unable to protect, maintain or enforce our intellectual property rights or secure rights to third-party 
intellectual property, or if our intellectual property rights are inadequate to protect our technology and product 
candidates, our competitive position could be harmed, we may lose valuable assets, lose market share or incur costly 
litigation or our third-party collaborators may choose to terminate their agreements with us
•
If we are unable to protect the confidentiality of our trade secrets, the value of our technology could be materially 
adversely affected and our business would be harmed
•
The markets for our pharmaceutical products and product candidates are rapidly changing and competitive, and new 
products or technologies developed by others could impair our ability to establish, maintain or grow our business and 
remain competitive
•
Our relationships with physicians, patients and third-party payers are subject to anti-kickback, fraud and abuse, privacy 
and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual 
damages, reputational harm and diminished profits and future earnings
•
We could be exposed to significant product liability claims and we are subject to healthcare laws and regulations, which 
could expose us to criminal sanctions, civil penalties, contractual damages and reputational harm 
•
Healthcare reform measures could hinder or prevent our product candidates’ commercial success
•
Market acceptance of, and market opportunity for, our products or product candidates is uncertain, and failure to 
achieve market acceptance or adequate reimbursement from third-party payers will delay our ability to generate or 
grow revenues
•
Inability to train physicians to use our products may prevent market acceptance of our products
•
Our stock price does not currently meet the minimum bid price for continued listing on Nasdaq
•
Our operating history makes evaluating our stock difficult and the price of our stock may be volatile 
•
Investors may experience substantial dilution of their investment 
•
Our ability to use net operating losses and other tax attributes is uncertain and may be limited
•
We have broad discretion over the use of our cash and investments, which may not always yield a favorable return
•
Our certificate of incorporation, bylaws and Delaware law could discourage an acquisition of us 

 
31
•
Having Delaware as the exclusive forum for substantially all disputes between us and our stockholders could limit our 
stockholders’ ability to obtain a favorable judicial forum for disputes
•
As a non-accelerated filer, we are not required to comply with the auditor attestation requirements of the Sarbanes-
Oxley Act and, consequently, some investors may find our common stock less attractive
•
Because our Company is a “smaller reporting company,” we may take advantage of certain scaled disclosures 
available to us, resulting in holders of our securities receiving less Company information than they would receive from 
a public company that is not a smaller reporting company
Risks Related To Our Business
We will require and may have difficulty or be unsuccessful in raising needed capital in the future to continue to operate as a 
going concern
Our business currently does not generate sufficient revenues to meet our capital requirements and we do not expect that it 
will do so in the near future. We have expended and will continue to expend substantial funds to conduct the research, 
development, manufacturing and clinical testing of larsucosterol. 
Presently, we do not have sufficient cash resources to meet our plans for the next twelve months from the issuance of the 
financial statements included herein. Our recurring losses from operations, negative cash flows and need for additional capital 
raise substantial doubt about our ability to continue as a going concern. As a result, our independent registered public accounting 
firm included an explanatory paragraph in its report on our financial statements as of, and for the year ended, December 31, 
2024. We will require additional financing to fund our operations or we will have to significantly curtail or discontinue our 
operations to conserve our capital resources. Additional funds may not be available on acceptable terms, if at all, and such 
availability will depend on a number of factors, some of which are outside of our control, including general capital markets 
conditions and investors’ view of our prospects and valuation. In addition, our ability to raise capital in the public capital markets 
may be limited by, among other things, SEC rules and regulations impacting the eligibility of smaller companies to use Form S-3 
for primary offerings of securities. Based on our public float, as of the date of the filing of this Annual Report on Form 10-K, we are 
only permitted to utilize the shelf registration statement subject to Instruction I.B.6. to Form S-3, which is referred to as the “baby 
shelf” rule. For so long as our public float is less than $75 million, we may not sell more than the equivalent of one-third of our 
public float during any 12 consecutive months pursuant to the baby shelf rules. Although alternative public and private 
transaction structures may be available, these may require additional time and cost, may impose operational restrictions on us, 
and may not be available on attractive terms. Further, investors’ perception of our ability to continue as a going concern may 
make it more difficult for us to obtain financing, or necessitate that we obtain financing on terms that are more favorable to 
investors, and could result in the loss of confidence by investors, suppliers and employees. Our continued operations are 
contingent on our ability to raise additional capital or license or otherwise monetize our assets. If we do not acquire sufficient 
additional funding or alternative sources of capital to meet our working capital needs, we will have to substantially curtail or 
discontinue our operations, resulting in delays in the development of larsucosterol and in generating revenue.
Our actual capital requirements will depend on many factors, including:
•
continued progress and cost of our research and development programs;
•
progress with clinical trials, including a Phase 3 clinical trial for larsucosterol in AH;
•
the time and costs involved in obtaining regulatory approvals, if any;

 
32
•
costs involved in establishing manufacturing capabilities for pre-clinical, non-clinical, clinical and commercial quantities 
of our product candidates;
•
success in entering into collaboration agreements and achieving milestones under such agreements;
•
regulatory actions with respect to our products and product candidates;
•
costs involved in preparing, filing, prosecuting, maintaining, defending and enforcing intellectual property rights;
•
costs of developing sales, marketing and distribution channels and our ability and that of our collaborators to sell our 
products, products we have a financial interest in and, product candidates;
•
competing technological and market developments;
•
market acceptance of our products, products we have a financial interest in and, product candidates;
•
costs for recruiting and retaining employees and consultants; and
•
unexpected legal, accounting and other costs and liabilities related to our business.
We may consume available resources more rapidly than currently anticipated, resulting in the need for additional funding. 
For example, we do not currently have sufficient capital resources to conduct a Phase 3 trial of larsucosterol. We may seek to 
raise additional funds through equity or debt financings, convertible debt financings, collaborative arrangements with corporate 
collaborators or other sources, which, in each case, may be dilutive to existing stockholders and may cause the price of our 
common stock to decline. In addition, in the event that additional funds are obtained through arrangements with collaborators or 
other sources, we may have to relinquish rights to some of our technologies, products or product candidates that we would 
otherwise seek to develop or commercialize ourselves.
We are dependent on the success of larsucosterol and the path to regulatory approval is uncertain; we cannot be certain that 
it will receive regulatory approval or be commercialized
Our business depends substantially on the successful development of larsucosterol, which has completed multiple clinical 
trials, including a Phase 2b clinical trial (AHFIRM) in patients with severe AH, topline results of which were announced in 
November 2023. The AHFIRM trial did not achieve the primary endpoint of a statistically significant difference in 90-day mortality 
or liver transplant for each dose of larsucosterol versus placebo. Accordingly, future clinical trials will be required to establish 
clinically and statistically significant proof of efficacy, and sufficient evidence of safety to support regulatory approval. Our plan is 
to initiate a Phase 3 clinical trial of larsucosterol in AH, subject to obtaining sufficient funding, and present topline results within 
two years of initiation. There is no assurance that future clinical trials will establish efficacy of larsucosterol to treat AH or will not 
result in unanticipated side effects. If larsucosterol fails to demonstrate safety or efficacy at any time or during any phase of 
development, we would experience potentially significant delays in, or be required to abandon development of larsucosterol, 
which would materially harm our business. 
Larsucosterol may not be eligible to receive regulatory approval from the FDA or other regulatory agencies and begin 
commercialization for a number of years, if ever. This uncertainty may make it difficult to predict the timing or expense required 
to obtain regulatory approval for larsucosterol. If we are unable to reach an agreement with the FDA or other regulatory agencies 
regarding the development of larsucosterol, including the trial design for a Phase 3 clinical trial in AH for larsucosterol’s clinical 
development, we may curtail, limit or discontinue our development activities for this product candidate. Even if we ultimately 
receive regulatory approval for larsucosterol, we or our potential future partners, if any, may be unable to commercialize it 
successfully for a variety of reasons. These include, for example, 

 
33
the future availability of alternative, potentially superior or less expensive treatments, lack of cost-effectiveness, the lack of 
favorable access and/or commercial pricing, the cost or technical challenges of manufacturing the product on a commercial scale 
and competition with other treatments. The success of larsucosterol may also be limited by the prevalence and severity of any 
adverse side effects, including mortality. 
The FDA or other regulatory agencies may require more information or clinical studies for our product candidates, and our 
product candidates may never be approved
The AHFIRM trial did not achieve the primary endpoint of a statistically significant difference in 90-day mortality or liver 
transplant for each dose of larsucosterol versus placebo. The failure to adequately demonstrate the safety and effectiveness of 
larsucosterol to the satisfaction of the FDA and other regulatory agencies will result in delays to the regulatory approval or non-
approvability of larsucosterol. Future clinical trials, including the planned Phase 3 clinical trial of larsucosterol in AH, may not 
demonstrate the sufficient levels of safety and efficacy necessary to obtain the requisite regulatory approvals for larsucosterol or 
may require such significant numbers of patients or additional costs to make it impractical to satisfy the regulatory agency’s 
requirements, and thus larsucosterol may not be approved for marketing. During the review process, the FDA or other regulatory 
agencies may request additional information regarding the efficacy or safety of larsucosterol and providing such additional 
information could require significant additional work and expense, and take a significant amount of time, resulting in a material 
delay of approval or the failure to obtain approval or lead our Company to abandon the development of larsucosterol. 
Additionally, the FDA, or other regulatory agencies, may also request more information regarding the chemistry, manufacturing 
or controls related to larsucosterol, and answering such questions could require significant additional work and expense, and take 
a significant amount of time, resulting in a material delay of approval or the failure to obtain approval or abandonment of 
larsucosterol. Even if larsucosterol receives FDA or other regulatory agency approval, the regulatory agency may require that we 
conduct additional clinical or non-clinical studies after such approval, place limitations on the use of our products in applicable 
labels, require marketing under a Risk Evaluation and Mitigation Strategy program, include commercially unattractive language in 
the approved product label, delay approval to market our products or limit the indicated use of our products, which may harm our 
business and results of operations.
We contract with third parties for the manufacture of larsucosterol and expect to continue to do so for any required additional 
clinical trials as well as the commercialization of larsucosterol. Our reliance on third parties increases the risk that submissions 
for regulatory approval of larsucosterol may be delayed or that we will not have sufficient quantities of larsucosterol available 
at an acceptable cost, which could delay, prevent or impair our development and commercialization efforts of larsucosterol
We currently rely on third-party contractors to manufacture, package, label and distribute clinical supplies of injectable 
larsucosterol, and we expect to establish supply agreements for commercial quantities of larsucosterol following approval for 
marketing by applicable regulatory authorities. We also expect to rely on third-party contractors to manufacture larsucosterol for 
use in future clinical trials. As of the filing date of this Annual Report on Form 10-K, our third-party manufacturer has not 
established a final process for the commercial supply of injectable larsucosterol and neither we nor our third-party manufacturer 
have completed stability testing required to submit and obtain regulatory approval for the use of larsucosterol in the treatment of 
AH. Reliance on third-party contractors entails risks including, but not limited to:
•
our inability to identify and negotiate manufacturing and supply agreements with suitable manufacturers;
•
delays in the development of manufacturing process technologies and stability testing;
•
our inability to control manufacturing process development and its timing;

 
34
•
manufacturing delays if our third-party contractors give greater priority to the supply of other products over 
larsucosterol or otherwise do not satisfactorily perform according to the terms of our agreements with such 
contractors;
•
possible terminations or nonrenewals of agreements by our third-party contractors at a time that is costly or 
inconvenient for us;
•
possible breaches by third-party contractors of our agreements with such contractors;
•
failures by third-party contractors to comply with applicable regulatory requirements;
•
possible mislabeling of clinical supplies, which could result in the supply of incorrect dose amounts or the improper 
identification of the active drug and/or placebo;
•
the possibility that clinical supplies will not be delivered to clinical sites on time, leading to clinical trial interruptions, or 
that drug supplies will not be distributed to commercial vendors in a timely manner, resulting in lost sales; or
•
possible misappropriations of our proprietary information, including our trade secrets and know-how.
Additionally, we may incur delays in the regulatory submissions or approval of larsucosterol due to manufacturing process 
development and stability testing, or from the need to identify or qualify alternative third-party manufacturers. Our current and 
anticipated future dependence upon third parties for the manufacturing of larsucosterol may adversely affect our future profit 
margins and our ability to commercialize any of our products that receive marketing approval on a timely and competitive basis.
Safety data and indications of activity from completed Phase 1 and 2 clinical trials of larsucosterol may not predict safety, 
activity or therapeutic efficacy in future trials
Safety data and indications of activity from completed Phase 1 and 2 clinical trials of larsucosterol, or from geographic or 
other subset analyses of the AHFIRM trial, may ultimately not be correlated with treatment or improvement in the associated 
disease, and there is a risk that larsucosterol may not demonstrate therapeutic efficacy in subsequent placebo-controlled trials. 
For example, the AHFIRM trial did not achieve the primary endpoint of a statistically significant difference in 90-day mortality or 
liver transplant for each dose of larsucosterol versus placebo. The failure of larsucosterol to show efficacy in one indication may 
negatively affect its perceived value in other indications, and the emergence of safety signals in ongoing or future clinical trials 
would significantly harm our business.    
From time to time, we may publicly disclose preliminary or “topline” data from our clinical trials, which is based on a 
preliminary analysis of then-available data, and the results and related findings and conclusions are subject to change following a 
more comprehensive review of the data related to the particular trial. We also make assumptions, estimations, calculations and 
conclusions as part of our analyses of data, and we may not have received or had the opportunity to fully and carefully evaluate 
all data. As a result, the topline results that we report may differ from, and may not be indicative of, future results of the same 
clinical trials, or different conclusions or considerations may qualify such topline results once additional data have been received 
and fully evaluated. Topline data also remain subject to audit and verification procedures that may result in the final data being 
different from the preliminary data we previously published. As a result, topline data should be viewed with caution until the final 
data are available and negative differences between preliminary or interim data and final data could materially adversely affect 
the prospects of any product candidate that is impacted by such data updates.
Further, others, including regulatory agencies, may not accept or agree with our assumptions, estimates, calculations, 
conclusions or analyses or may interpret or weigh the importance of data differently, which could impact the value of the 
particular program, the approvability or commercialization of the particular product candidate or product and the value of our 
company in general. In addition, the information we choose to publicly disclose regarding a particular study or clinical trial is 

 
35
typically a summary of extensive information, and others may not agree with what we determine is the material or otherwise 
appropriate information to include in our disclosure, and any information we determine not to disclose may ultimately be deemed 
significant with respect to future decisions, conclusions, views, activities or otherwise regarding a particular product, product 
candidate or our business. If the topline data that we report differ from actual results, or if others, including regulatory 
authorities, disagree with the conclusions reached, our ability to obtain approval for, and commercialize, our product candidates 
may be harmed.
Future clinical trials for larsucosterol may be delayed and may not demonstrate efficacy or safety
Future trials of larsucosterol in patients with AH are subject to potential delays for several reasons, including without 
limitation:
•
the FDA or other regulatory agencies disagreeing as to the design or implementation of our clinical trials; 
•
failure to agree with the FDA or other regulatory agencies regarding the trial design, including without limitation 
inclusion and exclusion criteria or primary and secondary endpoints; 
•
failure to reach, or delays in reaching, an agreement on acceptable terms with prospective contract research 
organizations ("CROs"), and clinical trial sites, the terms of which can be subject to extensive negotiation and may vary 
significantly among different CROs and trial sites; 
•
failure to obtain institutional review board ("IRB") approval at each site; 
•
delays, suspension, or termination of clinical trials by the IRB responsible for overseeing the trial at a particular trial 
site; 
•
slower than expected rates of recruitment of patients or failure to recruit a sufficient number of patients; 
•
delays in manufacturing or delivery of drug product to clinical trial sites;
•
patients dropping out of the trial after enrollment or withdrawing consent; 
•
clinical sites deviating from trial protocol, dropping out of a trial, or failing to comply with regulatory requirements; 
•
government, IRB, or other regulatory delays or “clinical holds” requiring suspension or termination of the trials; 
•
COVID-19, flu or other diseases having an adverse effect on patients’ willingness to participate in a trial; 
•
protocol amendments; and
•
the availability of capital to conduct such future trials.
There can also be no assurance that biological activity demonstrated in previous animal disease models or earlier clinical 
trials of larsucosterol will also be seen in future clinical trials, or that any clinically relevant biological activity will be observed, or 
that enrollment rates in future trials will be favorable or that these additional trials will not identify safety issues. Failure of future 
trials to achieve desired results in their anticipated timeframe could negatively impact our business and ability to raise additional 
capital.
Moreover, success in future research, preclinical testing and early clinical trials does not ensure that later clinical trials will 
be successful, and we cannot be sure that the results of later clinical trials will replicate the results of prior clinical trials and non-
clinical testing. Any future clinical trial process may fail to demonstrate that our potential drug candidates are safe for humans 
and effective for indicated uses. 

 
36
This failure would cause us to abandon a drug candidate and may delay development of other potential drug candidates. Any 
delay in, or termination of, future non-clinical testing or clinical trials will delay the filing of any future investigational new drug 
application ("IND") and new drug application ("NDA") with the FDA or the equivalent applications with pharmaceutical regulatory 
authorities outside the United States and, ultimately, our ability to commercialize any potential drugs and generate product 
revenues. 
The FDA’s Fast Track Designation and Breakthrough Therapy Designation of larsucosterol may not lead to a faster 
development or regulatory review or approval
The FDA grants Fast Track Designation to therapies that are considered capable of addressing unmet medical needs and 
possess the potential to treat serious or life-threatening disease conditions in order to facilitate its development and expedite the 
review procedure. Additionally, the FDA grants Breakthrough Therapy Designation to expedite its review of potential new drugs 
for serious or life-threatening diseases where preliminary clinical evidence indicates that the drug may demonstrate substantial 
improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects 
observed early in clinical development. The designation of a drug as a Breakthrough Therapy provides the same benefits as are 
available under the Fast Track program, as well as intensive FDA guidance on the product’s development program. 
Even though larsucosterol has received both Fast Track Designation and Breakthrough Therapy Designation for the 
treatment of AH, we may not experience a faster development process, review or approval compared to conventional FDA 
procedures, or receive FDA approval at all, in that indication or any other. Such designations do not change the standards for 
approval. The FDA may also withdraw such designations if it believes that they are no longer supported by data from our clinical 
development program.
In addition, the statutes and regulations that define the timelines and criteria for approval of drugs and biologics are 
subject to change by the U.S. Congress and the responsible administrative agencies. For example, the Prescription Drug User Fee 
Act (“PDUFA”) authorizes the FDA to collect fees and use them for the review of human drug applications and defines the review 
time targets for such applications. The current legislative authority for PDUFA will expire in September 2027. New legislation will 
then be required for the FDA to continue collecting prescription drug user fees in future fiscal years and for manufacturers to 
have clarity regarding the time the FDA will spend in review before granting regulatory approval. If PDUFA reauthorization is not 
completed in the future, the review and approval times for new drugs like larsucosterol could be significantly longer than 
currently expected, which could delay potential marketing approval and launch.
Open-label trials of larsucosterol in AH and MASH have inherent limitations
Certain previously completed AH and MASH trials of larsucosterol were open-label trials with no control groups. Open label 
trials have inherent risk of bias given that the patients and physicians know that the patients received active study drug, which 
can lead to placebo effects. Trials without control groups have an inherent risk in that the comparisons used to determine the 
study drug’s effect and side effect profile are based on comparisons with baseline (pre-treatment) levels (for blood chemistry and 
biomarker endpoints) and/or with historical controls, which may not have been conducted under similar enough conditions to 
make accurate comparisons and/or draw accurate conclusions from those comparisons.  Additionally, larger placebo-controlled 
clinical trials are required to evaluate the safety and efficacy of larsucosterol to treat any indication, including AH and MASH. 
There can be no assurance that ongoing or future studies will demonstrate the safety or efficacy of larsucosterol in a statistically 
significant or clinically meaningful manner.
We may incur additional costs or experience delays in completing, or ultimately be unable to complete, the development and 
commercialization of our product candidates
We may experience delays in completing our preclinical studies and initiating or completing clinical trials, and we may 
experience numerous unfavorable events during, or as a result of, any future clinical 

 
37
trials that we may conduct that could delay or prevent our ability to receive marketing approval or commercialize our product 
candidates, including:
•
regulators, institutional review boards ("IRBs"), or ethics committees may not authorize us or our investigators to 
commence a clinical trial or conduct a clinical trial at one or more prospective trial sites;
•
we may experience delays in reaching, or fail to reach, agreement on acceptable terms with prospective trial sites and 
prospective CROs, the terms of which can be subject to extensive negotiation and may vary significantly among 
different CROs and trial sites. We may be forced to accept unfavorable contract provisions in such agreements based 
on country, territory or local laws or requirements of institutions or IRBs where important clinical investigators practice;
•
clinical trials of our product candidates have in the past and may in the future produce negative or inconclusive results, 
clinical trial subjects receiving placebo or placebo may experience better than expected outcomes, and we may decide, 
or regulators may require us, to conduct additional preclinical studies or clinical trials or we may decide to abandon 
product development programs;
•
clinical trial sites or clinical investigators may not comply with the study protocol or applicable laws;
•
the number of patients required for clinical trials of our product candidates may be larger than we anticipate, 
enrollment in these clinical trials may be slower than we anticipate, or participants may drop out of these clinical trials 
or fail to return for post-treatment follow-up at a higher rate than we anticipate;
•
our third-party contractors may fail to comply with regulatory requirements or meet their contractual obligations to us 
in a timely manner, or at all, or may deviate from the clinical trial protocol or drop out of the trial, which may require 
that we add new clinical trial sites or investigators;
•
we may elect to, or regulators or IRBs or ethics committees may require us or our investigators to, suspend or 
terminate clinical research for various reasons, including noncompliance with regulatory requirements or a finding that 
the participants are being exposed to unacceptable health risks;
•
the cost of clinical trials of our product candidates may be greater than we anticipate;
•
the supply or quality of our product candidates or other materials necessary to conduct clinical trials of our product 
candidates may be insufficient or inadequate; and
•
our product candidates may have undesirable side effects or other unexpected characteristics, causing us or our 
investigators, regulators or IRBs or ethics committees to suspend or terminate the trials, or reports may arise from 
preclinical or clinical testing of other therapies that raise safety or efficacy concerns about our product candidates.
We could encounter delays if a clinical trial is delayed, suspended or terminated by us, by the IRBs of the institutions at 
which such trials are being conducted, by the Data Safety Monitoring Board for such trial or by the FDA or other regulatory 
authorities. Such authorities may impose such a suspension or termination or clinical hold due to a number of factors, including 
failure to conduct the clinical trial in accordance with regulatory requirements or our clinical protocols, inspection of the clinical 
trial operations or trial site by the FDA or other regulatory authorities, changes in clinical trial design, safety issues or adverse 
side effects, failure to demonstrate a benefit from using a product, or changes in governmental regulations or administrative 
actions. We may also delay, suspend or terminate a clinical trial due to a lack of adequate funding to commence or continue the 
clinical trial. Many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also 
ultimately lead to 

 
38
the denial of regulatory approval of our product candidates. Further, the FDA may disagree with our clinical trial design and our 
interpretation of data from clinical trials, or may change the requirements for approval even after it has reviewed and 
commented on the design for our clinical trials.
Our product development costs will also increase if we experience delays in testing or regulatory approvals. We do not 
know whether any of our future clinical trials will begin as planned, or whether any of our current or future clinical trials will need 
to be restructured or will be completed on schedule, if at all. Significant preclinical study or clinical trial delays, also could shorten 
any periods during which we may have the exclusive right to commercialize our product candidates or allow our competitors to 
bring products to market before we do and impair our ability to successfully commercialize our product candidates and may harm 
our business and results of operations. Any delays in our ongoing or future preclinical or clinical development programs may 
harm our business, financial condition and prospects significantly.
Key components of larsucosterol are provided by a limited number of suppliers, and supply shortages or loss of these suppliers 
could result in delays or interruptions in supply or increased costs 
We purchase larsucosterol from a third-party supplier and we currently have a third-party sole manufacturer for GMP 
supplies of larsucosterol. The third-party supplier is our sole manufacturer of the larsucosterol drug substance and the third party 
manufacturer is our sole source for the drug product required for development and commercialization of our larsucosterol drug 
candidate. 
The reliance on a sole or limited number of manufacturers and suppliers could result in:
•
an inability to obtain an adequate supply of larsucosterol, which may be exacerbated by trade wars or other 
governmental action related to tariffs or trade agreements;
•
delays associated with finding and contracting with a new supplier/manufacturer (if we can find one capable of 
replacing the old supplier and negotiate commercially reasonable terms) and then transferring the know-how and 
technology required to perform the services to the new supplier; and
•
reduced control over pricing, quality and delivery time.
There can be no assurance that we will receive sufficient quantities of larsucosterol to commence and conduct the non-
clinical trials, clinical trials and CMC activities we are planning, and delays in supply or manufacturing could delay development of 
larsucosterol. In addition, if additional third parties in our supply chain are adversely impacted by restrictions resulting from 
macroeconomic events, including staffing shortages, trade wars or other governmental action related to tariffs or trade 
agreements, raw material shortages, production slowdowns and/or disruptions in delivery systems, our supply chain may be 
disrupted in other ways, further limiting our ability to manufacture our product candidates for our clinical trials and conduct our 
research and development operations.
We have supply agreements in place for certain components of our products and product candidates, but do not have in 
place long term supply agreements with respect to all of the components of any of our products or product candidates. Therefore, 
the supply of a particular component could be terminated without our consent at any time without penalty to the supplier. In 
addition, we may not be able to procure required components or drugs from third-party suppliers at a commercially reasonable 
quantity, quality, cost and timing. In addition, certain of our suppliers may encounter delays in providing their services. Any 
interruption in the supply of single source components (including active pharmaceutical ingredients, excipients, or components 
like vials, stoppers, filters and the like), products or product candidates, could cause us to seek alternative sources of supply or 
attempt to manufacture these items internally if feasible. Furthermore, in some cases, we are relying on our third-party 
collaborators to procure supply of necessary components. If the supply of any components for our products or product candidates 
is interrupted, components from alternative suppliers may not be available in sufficient volumes or at acceptable quality levels 
within required timeframes, if at all, to meet our needs or those of 

 
39
our third-party collaborators. This could delay our ability to obtain commercial product supplies or complete development and 
obtain approval for commercialization and marketing of our product candidates, causing us to lose sales, incur additional costs, 
delay new product introductions and could harm our reputation and make access to capital more difficult, expensive or 
impossible. Supply chain disruptions have affected and may continue to affect the manufacturing and shipment of goods globally. 
Any delay in production or delivery of the components and drug substances used in our products or product candidates for any 
reason, could adversely impact our business and hinder our growth.
 
Macroeconomic uncertainties have in the past impacted and may continue to adversely impact our business, including posing 
challenges to conducting clinical trials
Global economic and business activities continue to face widespread macroeconomic uncertainties, including labor 
shortages and supply chain disruptions, inflation and monetary supply shifts, as well as recession risks, which may continue for 
an extended period, which may have an adverse impact on the economies and financial markets of many countries, resulting in a 
severe and prolonged global economic downturn that could have an adverse impact on our business operations and financial 
condition. Further, such macroeconomic uncertainties may also adversely impact our ability to raise additional capital to provide 
sufficient funding to continue our product development efforts, including clinical trials, which would make it more difficult for 
companies such as ours to access capital. 
Additionally, inflation has the potential to adversely affect our liquidity, business, financial condition and results of 
operations by increasing our overall cost structure. The existence of inflation in the economy has resulted in, and may continue to 
result in, higher interest rates and capital costs, supply shortages, increased costs of labor, increased manufacturing costs and 
clinical trial costs, weakening exchange rates and other similar effects. As a result of inflation, we have experienced and may 
continue to experience cost increases. 
The extent to which such macroeconomic uncertainties impact our operations will depend on future developments, which 
are highly uncertain and cannot be predicted with confidence. As a result, there have been and may continue to be longer lead 
times required for acquiring components and supplies used in manufacturing of larsucosterol. We may continue to experience 
disruptions that could severely impact our business, preclinical studies and clinical trials including:
•
delays or difficulties in enrolling patients in our clinical trials;
•
delays or difficulties in clinical site initiation, including difficulties in recruiting clinical site investigators and clinical site 
staff;
•
diversion of healthcare resources away from the conduct of clinical trials, including the diversion of hospitals serving as 
our clinical trial sites and hospital staff supporting the conduct of our clinical trials;
•
interruption of key clinical trial activities, such as clinical trial site data monitoring, due to limitations on travel or safety 
precautions imposed or recommended by federal, state or local governments, employers and others or interruption of 
clinical trial subject visits and study procedures, which may impact the integrity of subject data and clinical study 
endpoints, the ability to collect, ship and analyze biological samples from clinical trial patients due to concerns about 
potential contamination of samples and/or exposure of clinical staff to patients with certain diseases;
•
interruption or delays in the operations of the FDA or other regulatory authorities, which may impact review and 
approval timelines;
•
disruption or delays in manufacturing of clinical and commercial supplies due to issues experienced by our contract 
manufacturing organizations and/or shortages and delays in obtaining raw materials and supplies required in the 
manufacturing processes;

 
40
•
interruption of or delays in receiving supplies of our products and product candidates from our contract manufacturing 
organizations due to staffing shortages, production slowdowns or stoppages, prioritization of other activities over ours 
and disruptions in delivery systems;
•
interruptions in preclinical studies due to restricted or limited operations at laboratory facilities;
•
limitations on employee resources that would otherwise be focused on the conduct of our preclinical studies, clinical 
trials, and manufacturing activities including because of sickness of employees or their families or the desire of 
employees to avoid contact with groups of people; and
•
material delays and complications with respect to our research and development programs.
We do not control the commercialization of PERSERIS or Methydur
We have relied on Indivior for the commercialization of PERSERIS.  In July 2024, Indivior announced that they were 
discontinuing sales and marketing activities related to PERSERIS.  Accordingly, we expect payments based on sales of PERSERIS 
to decline in the future.  Further, we rely on Orient Pharma for the commercialization of Methydur. If Orient Pharma does not 
successfully grow Methydur sales, the royalty payments we receive under our agreement with them will be limited. The sales of 
each of these products may be negatively impacted by challenging macroeconomic conditions.
Our ability to obtain revenues from the commercialization of POSIMIR is uncertain
We have historically relied on Innocoll to commercialize POSIMIR in the United States pursuant to the Innocoll Agreement, 
which entitled us to tiered, low double-digit to mid-teen royalties on net product sales of POSIMIR in the United States, and 
milestone payments of up to $122.0 million in the aggregate, depending on the achievement of certain regulatory, commercial, 
and intellectual property milestones with respect to POSIMIR.  The current approved labeling for POSIMIR is limited, and Innocoll 
has been responsible for completing post-marketing non-clinical studies and any additional studies required by the FDA, as well 
as for manufacturing POSIMIR.  On November 8, 2024, we received notice that Innocoll is terminating the Innocoll Agreement, 
effective May 6, 2025.  Innocoll has committed to transfer all data and know-how related to POSIMIR to us, and we are evaluating 
next steps with respect to the commercialization of POSIMIR. There can be no assurance that we will be able to generate 
revenues from the commercialization of POSIMIR.
For certain of our product candidates, we depend to a large extent on third-party collaborators, and we have limited or no 
control over their development, sales, distribution and disclosure for those product candidates 
Our performance for certain of our product candidates depends to a large extent on the ability of our third-party 
collaborators to successfully develop and obtain regulatory approvals.  We have entered into agreements with Indivior and Orient 
Pharma under which we granted such third parties the right to develop, apply for regulatory approval for, market, promote or 
distribute certain products or product candidates, subject to payments to us in the form of product royalties, earn-out and other 
payments. We have limited or no control over the expertise or resources that any collaborator may devote to the development, 
clinical trial strategy, regulatory approval, marketing or sale of these product candidates, or the timing of their activities. Any of 
our present or future collaborators may not perform their obligations as expected. These collaborators may breach or terminate 
their agreement with us or otherwise fail to conduct their collaborative activities successfully and in a timely manner. Enforcing 
any of these agreements in the event of a breach by the other party could require the expenditure of significant resources and 
consume a significant amount of management time and attention. Our collaborators may also conduct their activities in a manner 
that is different from the manner we would recommend or would have chosen had we been developing such product candidates 
ourselves. Further, our collaborators may elect not to develop or commercialize product candidates arising out of our 
collaborative arrangements or 

 
41
not devote sufficient resources to the development, clinical trials, regulatory approval, manufacture, marketing or sale of these 
product candidates. If any of these events occur, we may not recognize revenue from the commercialization of our product 
candidates based on such collaborations. In addition, these third parties may have similar or competitive products to the ones 
which are the subject of their collaborations with us, or relationships with our competitors, which may reduce their interest in 
developing or selling our products or product candidates. We may not be able to control public disclosures made by some of our 
third-party collaborators, which could negatively impact our stock price.
Our business strategy includes relying on third parties to support development, clinical testing, manufacturing and 
commercialization of our products and product candidates. 
Our current business strategy includes reliance on third-party CROs, consultants, service providers and suppliers to provide 
critical services to support development, clinical testing, and manufacturing of our products and product candidates, including, 
but not limited to larsucosterol and others. For example, we currently depend on third-party vendors to manage and monitor 
most of our clinical trials. We rely on third parties to manufacture or perform manufacturing steps relating to our products, 
product candidates and components. We anticipate that we will continue to rely on these and other third-party contractors to 
support development, clinical testing, and manufacturing of our products and product candidates. Third parties may not execute 
their responsibilities and tasks competently in compliance with their contractual obligations to us, applicable laws and regulations 
or in a timely or cost-effective fashion. Failure of these contractors to provide the required services in a competent or timely 
manner or on reasonable commercial terms could materially delay the development and approval of our product candidates or 
commercialization of our products, increase our expenses and materially harm our business, financial condition, results of 
operations and access to capital.
Cancellation of third-party collaborations may adversely affect potential economic benefits 
Third-party collaboration agreements typically allow the third party to terminate the agreement (or a specific program 
within an agreement) at will by providing notice. Termination can result from failure of the collaboration to achieve anticipated 
milestones, from changes in strategy of the other party or for other reasons. In these cases, the product rights typically revert to 
us or certain rights of the partner to use our proprietary technology are terminated. If there have been payments under such 
agreements that are being recognized over time, termination of such agreements (or programs) can lead to a near-term increase 
in our reported revenues resulting from the immediate recognition of the balance of such payments. Termination deprives us of 
potential future economic benefits under such agreements, and may make it more difficult, unattractive or impossible to enter 
into agreements with other third parties for use of the assets and/or technologies that were subject to the terminated agreement. 
For example, on November 8, 2024, Innocoll notified us of their termination of the Innocoll Agreement, effective as of May 6, 
2025, pursuant to which we could have received royalties and milestone payments in the future.
Our cash flows are likely to differ from our reported revenues and earnings
Our revenues and earnings may differ from our cash flows from revenue-generating activities. Upfront payments received 
upon execution of collaborative agreements may be recorded as deferred revenue, in which case they would be recognized over 
the period of performance for the related performance obligations with the third-party collaborator pursuant to the applicable 
agreement. The period of performance obligations may also be revised on a prospective basis. Assumptions related to revenue 
recognition for performance obligations provided over time are reviewed in each accounting period and changes are recorded in 
the current period. In certain circumstances, changes in assumptions related to the measure of progress for a performance 
obligation performed over time could result in negative revenue or the acceleration of revenue for an accounting period.

 
42
Failure to comply with governmental regulations could materially harm our business 
Developing, manufacturing, marketing or promoting a drug is subject to very strict regulations and controls. Furthermore, 
clearance or approval may entail ongoing requirements for post-marketing studies or surveillance. The manufacture and 
marketing of drugs are subject to continuing FDA and foreign regulatory review and requirements that we update our regulatory 
filings. Later discovery of previously unknown problems with a product, manufacturer or facility, or our failure to update 
regulatory files, may result in restrictions, including withdrawal of the product from the market. Any of the following or other 
similar events, if they were to occur, could delay or preclude us from further developing, marketing or realizing full commercial 
value of our products or product candidates, which in turn would materially harm our business, financial condition and results of 
operations:
•
failure to obtain or maintain requisite governmental approvals;
•
failure to meet GMP, good laboratory practice and/or other governmental requirements for drug development;
•
failure to obtain approvals for commercially valuable intended uses of our products and product candidates; or
•
FDA required product withdrawals, clinical holds or warnings arising from identification of serious adverse side effects 
in our products and product candidates.
Manufacturers of drugs must comply with the applicable FDA GMP regulations, which include production design controls, 
testing, quality control and quality assurance requirements as well as the corresponding maintenance of records and 
documentation. Compliance with current GMP regulations is difficult and costly. Manufacturing facilities are subject to ongoing 
periodic inspection by the FDA and corresponding state and in some cases, foreign agencies, including unannounced inspections, 
and must be licensed before they can be used for the commercial manufacture of our products and product candidates. We 
and/or our present or future suppliers and distributors may be unable to comply with the applicable GMP regulations and other 
FDA and/or foreign regulatory requirements. If we, our third-party collaborators or our respective suppliers do not achieve 
compliance for our products or product candidates we or they manufacture, the FDA or foreign equivalents may refuse or 
withdraw marketing clearance or approvals, put our or our partner’s clinical trial on hold, withdraw or reject an IND application or 
NDA,  or require product recall, which may cause interruptions or delays in the development, manufacture and sale of our 
products and product candidates.
We have a history of operating losses, expect to continue to have losses and may never achieve or maintain profitability and 
we may not successfully manage our Company through varying business cycles
We have incurred significant operating losses since our inception in 1998 and, as of December 31, 2024, had an 
accumulated deficit of approximately $597.3 million. We expect to continue to incur significant operating losses over the next 
several years as we continue to incur significant costs for research and development, clinical trials, manufacturing, sales, and 
general and administrative functions. Our ability to achieve profitability depends upon our ability, alone or with others, to 
successfully complete the development of our proposed product candidates, obtain the required regulatory clearances, 
manufacture and market our proposed product candidates and successfully commercialize our approved products. Development 
of pharmaceutical product candidates is costly and requires significant investment. In addition, we may choose to license from 
third parties either rights to particular drugs or other appropriate technology and/or intellectual property rights for use in our 
products and product candidates. The license fees as well as the operating costs of using or developing these technologies or 
rights would increase the costs of our products and product candidates as well as our operating costs generally.
Our revenues over the last two years are from earn-out payments from Indivior related to sales of PERSERIS, from certain 
excipient sales, from royalty payments from Orient Pharma related to sales of 

 
43
Methydur in Taiwan, from payments under collaborative research and development agreements with third parties and from 
royalties from Innocoll related to POSIMIR. We do not expect that our revenues will exceed our operating expenses in the near 
future. We do not anticipate meaningful revenues to derive from the commercialization and marketing of our products and 
product candidates in the near future, do not expect to receive additional milestone payments in the near term due to the 
termination of the Innocoll Agreement or meaningful royalties from POSIMIR until the product achieves meaningful sales (if ever) 
and therefore do not expect to generate sufficient revenues to cover expenses or achieve profitability in the near future.
Our success will depend in part on properly sizing our Company through growth and contraction cycles caused in part by 
changing business conditions, which places a significant strain on our management and on our administrative, operational and 
financial resources. For example, in connection with the COVID-19 pandemic, from 2020 to 2022, we required most of our 
personnel, including all of our administrative employees, to work remotely, restricted on-site staff to only mandatory personnel, 
implemented social distancing on-site, and closed certain of our offices temporarily. While we have switched to a hybrid remote 
model, our continued reliance on personnel working remotely makes us more susceptible to reduced productivity, disruptions, 
delays, and other adverse impacts on our business.  In addition, this model could increase our cyber security risk, create data 
accessibility concerns, and make us more susceptible to communication disruptions, any of which could adversely impact our 
business operations or delay necessary interactions with the FDA, manufacturing sites, research or clinical trial sites. To mitigate 
similar future cycles, we may expand or contract our facilities, our operational, financial and management systems and our 
personnel. If we are unable to manage growth and contractions effectively, our business would be harmed. 
We depend upon key personnel who may terminate their employment with us at any time, and we may not be able to attract 
and retain sufficient qualified personnel on a timely basis, if at all
Our success will depend to a significant degree upon the continued services of key management, technical and scientific 
personnel. In addition, our success will depend on our ability to attract and retain other highly skilled personnel, particularly as 
we develop and expand our Epigenetic Regulator Program. Competition for qualified personnel is intense, and the process of 
hiring and integrating such qualified personnel is often lengthy. The market for qualified personnel in the San Francisco Bay Area 
is very competitive and we may be unable to recruit such personnel on a timely basis, if at all. Our management and other 
employees may voluntarily terminate their employment with us at any time. We have reduced our headcount from 58 as of 
March 26, 2024 to 21 as of March 25, 2025 through targeted headcount reductions and the sale of the ALZET product line. We 
may need to terminate additional employees to maintain our operations. The loss of the services of key personnel, or the inability 
to attract and retain additional qualified personnel, could result in delays to product development or approval, loss of sales and 
diversion of management resources as well as difficulties or inability to raise sufficient capital to fund our Company’s operations. 
Cyber-attacks or other failures in telecommunications or information technology systems could result in information theft, data 
corruption and significant disruption of our business operations
We utilize information technology, systems and networks to process, transmit and store electronic information in 
connection with our business activities. As use of digital technologies has increased, cyber incidents, including deliberate attacks 
and attempts to gain unauthorized access to computer systems and networks, have increased in frequency and sophistication. 
These threats pose a risk to the security of our systems and networks and the confidentiality, availability and integrity of our 
data, and may cause a disruption in our operations, harm our reputation, cause us to pay to retrieve our data if it becomes 
infected or otherwise subject to ransomware, and increase our stock trading risk. There can be no assurance that we will be 
successful in preventing cyber-attacks or successfully mitigating their effects. Similarly, there can be no assurance that our third-
party collaborators, distributors and other contractors and consultants will be successful in protecting our clinical and other data 
that is stored on their systems. 

 
44
Any cyber-attack or destruction or loss of data could have a material adverse effect on our business and prospects. In addition, 
we may suffer reputational harm or face litigation or adverse regulatory action as a result of cyber-attacks or other data security 
breaches and may incur significant additional expense to implement further data protection measures.
Our business involves environmental risks and risks related to handling regulated substances
In connection with our research and development activities and our manufacture of materials, products and product 
candidates, we are subject to federal, state and local laws, rules, regulations and policies governing the use, generation, 
manufacture, storage, air emission, effluent discharge, handling and disposal of certain materials and wastes. Although we 
believe that we have complied with the applicable laws, regulations and policies in all material respects and have not been 
required to correct any material noncompliance, we may be required to incur significant costs to comply with environmental and 
health and safety regulations in the future. Our research and development involves the use, generation and disposal of 
hazardous materials, including but not limited to certain hazardous chemicals, solvents, agents and biohazardous materials. 
Although we believe that our safety procedures for storing, handling and disposing of such materials comply with the standards 
prescribed by state and federal regulations, we cannot completely eliminate the risk of accidental contamination or injury from 
these materials. We currently contract with third parties to dispose of these substances generated by us, and we rely on these 
third parties to properly dispose of these substances in compliance with applicable laws and regulations. If these third parties do 
not properly dispose of these substances in compliance with applicable laws and regulations, we may be subject to legal action 
by governmental agencies or private parties for improper disposal of these substances. The costs of defending such actions and 
the potential liability resulting from such actions are often very large. In the event we are subject to such legal action or we 
otherwise fail to comply with applicable laws and regulations governing the use, generation and disposal of hazardous materials 
and chemicals, we could be held liable for any damages that result, and any such liability could exceed our resources.
As a non-accelerated filer, we are not required to comply with the auditor attestation requirements of the Sarbanes-Oxley Act 
and, consequently, some investors may find our common stock less attractive 
We are a non-accelerated filer as defined by Rule 12b-2 of the Exchange Act, and as such, are not required to provide an 
auditor attestation of management’s assessment of internal control over financial reporting, which is generally required for SEC 
reporting companies under Section 404(b) of the Sarbanes-Oxley Act. Therefore, our internal controls over financial reporting will 
not receive the level of review provided by the process relating to the auditor attestation included in annual reports of issuers 
that are subject to the auditor attestation requirements. Because we are not required to have our auditors provide an attestation 
of our management’s assessment of internal control over financial reporting, a material weakness in internal control may remain 
undetected for a longer period. In addition, investors may find our common stock less attractive because we are not required to 
comply with the auditor attestation requirements. If some investors find our common stock less attractive as a result, there may 
be a less active trading market for our common stock and the trading price for our common stock as well as our ability to raise 
capital may be negatively affected.
Delays or difficulties in the enrollment of subjects in clinical trials may increase our overall development expenses and delay 
clinical trial data and receipt of necessary regulatory approvals
Successful and timely completion of clinical trials will require that we enroll a sufficient number of subjects and/or patients 
within a reasonable period of time. Enrollment, a significant factor in the timing of clinical trials, is affected by many factors 
including the size and nature of the patient population, our ability to recruit clinical sites and the ability of clinical sites to 
successfully recruit subjects to participate in clinical trials. Trials may be subject to delays as a result of patient enrollment taking 
longer than anticipated or patient withdrawal. We may not be able to initiate or continue clinical trials for larsucosterol if we are 
unable to sign and maintain sufficient clinical sites, locate and enroll a sufficient 

 
45
number of eligible patients to participate in these trials as required by the FDA or other regulatory authorities, or if we are unable 
to collect and analyze biological samples required for trial endpoints. It is possible that the inclusion and exclusion criteria for 
patients to be enrolled in these trials may make the trials more difficult to conduct or may significantly extend the time required 
for enrollment and the cost of these trials.
We cannot predict how successful we will be at enrolling patients in our clinical trials. Enrollment is affected by many 
factors including:
•
the eligibility criteria for the trial in question; 
•
the prevalence and incidence of the conditions being studied;
•
challenges with patient access, hospital prioritization, clinical trial staff availability, ability to collect, ship and analyze 
patients’ biological samples, availability of personal protective equipment, swabs, reagents and other materials and 
supplies;
•
the perceived risks and benefits of our product candidates;
•
clinicians’ and patients’ perceptions as to the potential advantages of the product candidate being studied in relation to 
other available therapies, including any new drugs or therapeutic biologics that may be approved for the indications we 
are investigating; 
•
the efforts to facilitate timely enrollment in clinical trials; 
•
competition for clinical sites and patients from other clinical trials;
•
the willingness of potential clinical trial patients to provide informed consent to participate in the trial;
•
the patient referral practices of physicians; 
•
the ability to monitor patients adequately during and after treatment; and 
•
the proximity and availability of clinical trial sites for prospective patients. 
Our inability to sign up and maintain sufficient clinical trial sites and/or enroll a sufficient number of patients for clinical 
trials would result in significant delays and could require us to abandon one or more clinical trials altogether. Enrollment delays in 
these clinical trials may result in increased development costs for our drug candidates or delays in regulatory filings and 
approvals, which would cause the value of our Company to decline and limit our ability to obtain additional financing. 
Changes in tax law could adversely affect our business and financial condition
The rules dealing with U.S. federal, state, and local income taxation are constantly under review by persons involved in the 
legislative process and by the IRS and the U.S. Treasury Department. Changes to tax laws (which changes may have retroactive 
application) could adversely affect us or holders of our common stock. Many such changes have been made in the past and 
changes are likely to continue to occur in the future. For example, on March 11, 2021, President Biden signed into law the 
“American Rescue Plan Act”, which included extenders to the refundable employee retention credit under the Coronavirus Aid, 
Relief, and Economic Security ("CARES") Act and limitations to executive compensation effective for tax years beginning after 
2026. Future changes in tax laws could have a material adverse effect on our business, cash flow, financial condition or results of 
operations. 
We may develop our own sales force and commercial group to market future products but we have limited sales and 
marketing experience and may not be able to do so effectively
We may choose to develop our own sales force and commercial group to market larsucosterol, if approved, or other 
products that we may develop in the future. Developing a sales force and commercial group would require substantial 
expenditures and the hiring of qualified personnel. We have limited sales 

 
46
and marketing experience, and may not be able to effectively recruit, train or retain sales and marketing personnel. If we are not 
able to put in place an appropriate sales force and commercial group for our products in development and provide that 
commercial team with sufficient financial and other resources, we may not be able to effectively launch or commercialize these 
or any other products. We may not be able to effectively sell our products and product candidates, if approved, and our failure to 
do so could limit or materially harm our business.
 
We and our third-party collaborators may not sell our product candidates effectively
We and our third-party collaborators (including Indivior and Orient Pharma) compete with many other companies that 
currently have extensive and well-funded marketing and sales operations. Our marketing and sales efforts and those of our third-
party collaborators may be unable to compete successfully against these other companies. We and our third-party collaborators, 
where applicable, may be unable to establish a sufficient sales and marketing organization on a timely basis, if at all. We and our 
third-party collaborators, where applicable, may be unable to engage qualified distributors. Even if engaged, these collaborators 
and distributors may:
•
fail to adequately market our products or product candidates;
•
fail to satisfy financial or contractual obligations to us;
•
cease operations, terminate our collaboration or re-allocate resources away from our products or product candidates 
with little or no notice to us;
•
offer, design, manufacture or promote competing product lines;
•
fail to maintain adequate inventory and thereby restrict use of our products or product candidates; or
•
build up inventory in excess of demand thereby limiting future purchases of our products or product candidates 
resulting in significant quarter-to-quarter variability in our sales.
The failure by us or our third-party collaborators to effectively develop, gain regulatory approval for, sell, manufacture and 
market our products and product candidates will hurt our business, prospects, financial results and may impact our access to 
capital.
Write-offs related to impairment of goodwill, long-lived assets, inventories and other non-cash charges may adversely impact 
profitability and cause cash flows to differ from reported earnings
We may incur significant non-cash charges related to impairment write-downs of our long-lived assets, including goodwill. 
We are required to perform periodic impairment reviews of our goodwill at least annually. The carrying value of goodwill on our 
balance sheet was $2.7 million at December 31, 2024 after the sale of the ALZET product line. To the extent these reviews 
conclude that the expected future cash flows generated from our business activities are not sufficient to recover the cost of our 
long-lived assets, we will be required to measure and record an impairment charge to write-down these assets to their realizable 
values. We completed our last review during the fourth quarter of 2024 and determined that goodwill was not impaired as of 
December 31, 2024. However, there can be no assurance that upon completion of subsequent reviews a material impairment 
charge will not be recorded. If future periodic reviews determine that our assets are impaired and a write-down is required, it will 
adversely impact or delay our profitability.
Inventories, in part, include certain excipients that are sold to customers and included in products and product candidates 
in development. These inventories are capitalized based on management’s judgment of probable sale prior to their expiration 
date which in turn is primarily based on management’s internal estimates. The valuation of inventory requires us to estimate the 
value of inventory that may expire prior to use. We may be required to expense previously capitalized inventory costs upon a 
change in our judgment, due to, among other potential factors, a denial or delay of approval of a product by the 

 
47
necessary regulatory bodies, changes in product development timelines, or other information that suggests that the inventory 
will not be saleable.  
Global credit and financial market conditions could negatively impact the value of our investments
Our cash and cash equivalents are maintained in highly liquid investments with remaining maturities of 90 days or less at 
the time of purchase. Our short-term investments consist primarily of readily marketable debt securities with original maturities 
of greater than 90 days from the date of purchase but remaining maturities of less than one year from the balance sheet date. 
Our long-term investments consist primarily of readily marketable debt securities with maturities of one year or beyond from the 
balance sheet date. No assurance can be given that deterioration in conditions of the global credit and financial markets would 
not negatively impact our current portfolio of cash equivalents, short-term investments or long-term investments or our ability to 
meet our financing objectives.
Our corporate headquarters and personnel are located in a seismically active area near wildfire zones
Our corporate headquarters and personnel are located in a geographical area that is known to be seismically active and 
prone to earthquakes, as well as wildfires and related power outages or power shortages. Should such a natural disaster or power 
outage or power shortage occur, our ability to conduct our business could be severely restricted, and our business and assets, 
including the results of our research, development and manufacturing efforts, could be harmed or destroyed.
If we seek approval to commercialize our current or future drug candidates outside of the United States, a variety of risks 
associated with international operations could harm our business
If we seek approval of our current or future drug candidates outside of the United States, we expect that we will be subject 
to additional risks including:
•
different regulatory requirements for approval of therapies in foreign countries;
•
the potential for reduced protection for intellectual property rights;
•
the potential requirement of additional clinical studies in international jurisdictions;
•
unexpected changes in tariffs, trade barriers and regulatory requirements;
•
economic weakness, including inflation, or political instability in particular foreign economies and markets;
•
compliance with tax, employment, immigration and labor laws for employees living or traveling abroad;
•
foreign currency fluctuations, which could result in increased operating expenses and reduced revenues, and other 
obligations incident to doing business in another country;
•
foreign reimbursement, pricing and insurance regimes;
•
workforce uncertainty in countries where labor unrest is more common than in the United States;
•
production shortages resulting from any events affecting raw material supply or manufacturing capabilities abroad; and
•
business interruptions resulting from geopolitical actions, including war and terrorism, or natural disasters and public 
health pandemics.

 
48
We have no prior experience in these areas. In addition, there are complex regulatory, tax, labor and other legal 
requirements imposed by many of the individual countries in and outside of Europe with which we will need to comply. Many 
biopharmaceutical companies have found the process of marketing their own products in foreign countries to be very 
challenging. 
 
Risks Related to Our Intellectual Property
If we are unable to protect, maintain or enforce our intellectual property rights or secure rights to third-party intellectual 
property, or if our intellectual property rights are inadequate to protect our technology and product candidates, our 
competitive position could be harmed, we may lose valuable assets, lose market share or incur costly litigation or our third-
party collaborators may choose to terminate their agreements with us
Our ability to commercially exploit our products will depend significantly on our ability to obtain and maintain patents, 
maintain trade secret protection and operate without infringing the proprietary rights of others. The patent positions of 
pharmaceutical companies, including ours, are uncertain and involve complex legal and factual questions. There can be no 
assurance that the pending patent applications will be granted, and if granted, they may fail to result in issued patents with 
claims that cover our product candidates or technologies.
As of March 25, 2025, we owned or exclusively in-licensed over 15 unexpired issued U.S. patents and over 145 unexpired 
issued foreign patents (which include granted European patent rights that have been validated in various EU member states). In 
addition, we have over 15 pending U.S. patent applications and over 95 foreign applications pending in Europe, Australia, Japan, 
Canada and other countries.
There can be no assurance that the pending patent applications will be granted. Further, there can be no assurance that 
VCU will not attempt to terminate their license to us, which termination could result in the loss of our rights to certain of these 
patent families.
The patent positions of pharmaceutical companies, including ours, are uncertain and involve complex legal and factual 
questions. In addition, the coverage claimed in a patent application can be significantly reduced before the patent is issued. Even 
if patents have been issued, third parties may challenge the validity, enforceability or scope thereof, which may result in such 
patents being narrowed, invalidated or held unenforceable. Changes in either the patent laws or interpretation of the patent laws 
in the United States or elsewhere could increase the uncertainties and costs surrounding the prosecution of patent applications 
and the enforcement or defense of issued patents. Further, there can be no assurance that VCU will not attempt to terminate 
their license to us, which termination could result in the loss of our rights to certain of these patent families. Consequently, our 
patent applications or those that are licensed to us may not issue into patents, and any issued patents may not provide 
protection against competitive technologies or may be held invalid if challenged. Our competitors may also independently 
develop products similar to ours or design around or otherwise circumvent patents issued to us or licensed by us. Moreover, 
patents have a limited lifespan. In the United States and in many other countries, the natural expiration of a patent is generally 
20 years after it is filed, and once any patents covering a product expire, generic competitors may enter the market. We may not 
be able to protect our intellectual property rights throughout the world. Filing, prosecuting and defending patents on all of our 
product candidates throughout the world would be prohibitively expensive, and our intellectual property rights in some countries 
outside the United States may be less extensive than those in the United States. In addition, the laws of some foreign countries 
may not protect our proprietary rights to the same extent as U.S. law, if at all. Competitors may use our technologies in 
jurisdictions where we have not obtained patent protection to develop their own products and, further, may export otherwise 
infringing products to territories where we have patent protection, but enforcement is not as strong as in the United States.

 
49
If we are unable to protect the confidentiality of our trade secrets, the value of our technology could be materially adversely 
affected and our business would be harmed
We also rely upon trade secrets, technical know-how and continuing technological innovation to develop and maintain our 
competitive position. We require our employees, consultants, advisors and collaborators to execute confidentiality and 
assignment-of-inventions agreements with us. These agreements typically provide that all materials and confidential information 
developed or made known to the individual during the course of the individual’s relationship with us is to be kept confidential and 
not disclosed to third parties except in specific circumstances, and that all inventions arising out of the individual’s relationship 
with us will be our exclusive property. These agreements may be breached, and in some instances, we may not have an 
appropriate remedy available for breach of the agreements. Furthermore, our competitors may independently develop 
substantially equivalent proprietary information and techniques, reverse engineer our information and techniques, or otherwise 
gain access to our proprietary technology. We also seek to preserve the integrity and confidentiality of our confidential 
proprietary information by maintaining physical security of our premises and physical and electronic security of our information 
technology systems, but it is possible that these security measures could be breached. If any of our confidential proprietary 
information were to be lawfully obtained or independently developed by a competitor, we would have no right to prevent such 
competitor from using that technology or information to compete with us, which could harm our competitive position. We may be 
unable to meaningfully protect our rights in trade secrets, technical know-how and other non-patented technology. 
We may be subject to claims that our employees, consultants, or independent contractors have wrongfully used or disclosed 
confidential information of third parties
We employ individuals who were previously employed at other biotechnology or biopharmaceutical companies. Although 
we try to ensure that our employees, consultants and advisors do not use the proprietary information or know-how of others in 
their work for us, we may be subject to claims that we or our employees, consultants, or independent contractors have 
inadvertently or otherwise used or disclosed confidential information of our employees’ former employers or other third parties. 
Litigation may be necessary to defend against these claims. There is no guarantee of success in defending these claims, and 
even if we are successful, litigation could result in substantial cost and be a distraction to our management and other employees. 
Even if we are successful in defending against these types of claims, litigation or other legal proceedings relating to intellectual 
property claims may cause us to incur significant expenses and could distract our technical and management personnel from 
their normal responsibilities. In addition, there could be public announcements of the results of hearings, motions or other interim 
proceedings or developments, and, if securities analysts or investors perceive these results to be negative, that perception could 
have a substantial adverse effect on the price of our common stock. This type of litigation or proceeding could substantially 
increase our operating losses and reduce our resources available for development activities. Some of our competitors may be 
able to sustain the costs of this type of litigation or proceedings more effectively than we can because of their substantially 
greater financial resources. Uncertainties resulting from the initiation and continuation of intellectual property litigation or other 
intellectual property related proceedings could adversely affect our ability to compete in the marketplace.
We may be subject to claims challenging the inventorship of our patents and other intellectual property
We or our licensors may be subject to claims that former employees, collaborators or other third parties have an interest in 
our owned or in-licensed patents, trade secrets, or other intellectual property as an inventor or co-inventor. For example, we or 
our licensors may have inventorship disputes arise from conflicting obligations of employees, consultants or others who are 
involved in developing our product candidates. Litigation may be necessary to defend against these and other claims challenging 
inventorship or our or our licensors’ ownership of our owned or in-licensed patents, trade secrets or other intellectual 

 
50
property. If we or our licensors fail in defending any such claims, in addition to paying monetary damages, we may lose valuable 
intellectual property rights, such as exclusive ownership of, or right to use, intellectual property that is important to our product 
candidates. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a 
distraction to management and other employees. Any of the foregoing could have a material adverse effect on our business, 
financial condition, results of operations and prospects.
Obtaining and maintaining patent protection depends on compliance with various procedural, document submission, fee 
payment and other requirements imposed by governmental patent agencies and our patent protection could be reduced or 
eliminated for non-compliance with these requirements
The USPTO and various foreign governmental patent agencies require compliance with a number of procedural, 
documentary, fee payment and other similar provisions during the patent application process. In addition, periodic maintenance 
fees on issued patents often must be paid to the USPTO and foreign patent agencies over the lifetime of the patent. While an 
unintentional lapse can in many cases be cured by payment of a late fee or by other means in accordance with the applicable 
rules, there are situations in which noncompliance can result in premature abandonment or lapse of the patent or patent 
application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. Non-compliance events that could 
result in abandonment or lapse of a patent or patent application include, but are not limited to, failure to respond to official 
actions within prescribed time limits, non-payment of fees and failure to properly legalize and submit formal documents. If we or 
our licensors fail to maintain the patents and patent applications covering our product candidates, we may not be able to stop a 
competitor from marketing drugs that are the same as or similar to our product candidates, which would have a material adverse 
effect on our business.
We may be involved in lawsuits and other legal proceedings to protect or enforce our intellectual property, which could be 
expensive, time consuming and unsuccessful. Any such adverse result or determination could have a material adverse effect 
on our business.
Competitors may infringe our issued patents or any patents issued as a result of our pending or future patent applications. 
We may have to resort to litigation or arbitration to protect our intellectual property rights, or to determine their scope, validity or 
enforceability. In addition, interference, derivation, post-grant oppositions, and similar proceedings may be necessary to 
determine rights to inventions in our patents and patent applications. Enforcing or defending our proprietary rights is expensive, 
could cause diversion of our resources and may be unsuccessful. In addition, in an infringement proceeding, a court may decide 
that a patent of ours is not valid or is unenforceable or may refuse to stop the other party in such infringement proceeding from 
using the technology at issue on the grounds that our patents do not cover the technology in question. Any failure to enforce or 
protect our rights could cause us to lose the ability to exclude others from using our technology to develop or sell competing 
products. In addition, in some circumstances our collaborators have the first right to enforce our patents against third party 
infringers, and such collaborators may not enforce such claims adequately or successfully or in the manner that we would do 
ourselves. Litigation or other legal proceedings relating to intellectual property claims, with or without merit, are unpredictable 
and generally expensive and time-consuming and, even if resolved in our favor, are likely to divert significant resources from our 
core business, including distracting our technical and management personnel from their normal responsibilities. In addition, there 
could be public announcements of the results of hearings, motions or other interim proceedings or developments and if securities 
analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the market price of our 
common stock. We may not have sufficient financial or other resources to adequately conduct such litigation or proceedings. 
Some of our competitors may be able to sustain the costs of such litigation or proceedings more effectively than we can because 
of their greater financial resources and more mature and developed intellectual property portfolios. Accordingly, despite our 
efforts, we may not be able to prevent third parties from infringing upon or misappropriating or from successfully challenging our 
intellectual property rights. Uncertainties resulting from the 

 
51
initiation and continuation of patent litigation or other proceedings could have a material adverse effect on our ability to compete 
in the marketplace.
 
We may be sued by third parties claiming that our products or product candidates infringe on their intellectual property rights, 
particularly because there is substantial uncertainty about the validity and breadth of biopharmaceutical patents
Numerous third-party U.S. and foreign issued patents and pending patent applications exist in the fields in which we are 
developing product candidates, and there may be third-party patents or patent applications with claims to compositions, 
formulations, methods of manufacture or methods for treatment related to the use or manufacture of our product candidates and 
technologies. We or our collaborators may be exposed to future litigation by third parties based on claims that our products, 
product candidates or activities infringe the intellectual property rights of others.  We may also be subject to claims asserting 
that we, our collaborators, our employees, consultants or advisors have wrongfully used or disclosed alleged trade secrets of their 
current or former employers or claims asserting ownership of what we regard as our own intellectual property. These risks are 
exacerbated by the fact that the validity and breadth of claims covered in medical technology, pharmaceutical and biotechnology 
patents and the breadth and scope of trade secret protection involve complex legal and factual questions for which important 
legal principles are unresolved. Any litigation or claims against us or our collaborators, whether or not valid, could result in 
substantial costs, could place a significant strain on our financial resources and could harm our reputation and business 
prospects. We also may not have sufficient funds to litigate, particularly against parties with substantially greater resources. In 
addition, pursuant to our collaborative agreements, we have provided our collaborators with the right, under specified 
circumstances, to defend against any claims of infringement of the third-party intellectual property rights, and such collaborators 
may not defend against such claims adequately or successfully or in the manner that we would do ourselves. Intellectual property 
litigation or claims could force us or our collaborators to do one or more of the following, any of which could harm our business or 
financial results:
•
cease selling, incorporating or using any of our products or product candidates that incorporate the challenged 
intellectual property;
•
obtain a license from the holder of the infringed intellectual property right, which license may be costly or may not be 
available on reasonable terms, if at all; or
•
redesign our products or product candidates, which would be costly and time-consuming and may not be successful.
Our collaboration agreements may depend on our intellectual property
We are party to collaborative agreements with Orient Pharma, among others. Our third-party collaborators have entered 
into these agreements based on the exclusivity that our intellectual property rights confer on the products being developed. The 
loss or diminution of our intellectual property rights could result in a decision by our third-party collaborators to terminate their 
agreements with us. In addition, these agreements are generally complex and contain provisions that could give rise to legal 
disputes, including potential disputes concerning ownership of intellectual property and data under collaborations. Such disputes 
can lead to lengthy, expensive litigation or arbitration requiring us to devote management time and resources to such disputes 
which we would otherwise spend on our business. 
Risks Related To Our Industry
The markets for our pharmaceutical products and product candidates are rapidly changing and competitive, and new products 
or technologies developed by others could impair our ability to establish, maintain or grow our business and remain 
competitive
The pharmaceutical industry is subject to rapid and substantial technological change. Developments by others may render 
our products, product candidates under development or technologies noncompetitive or obsolete, or we may be unable to keep 
pace with technological developments or other 

 
52
market factors. Technological competition in the industry from pharmaceutical and biotechnology companies, universities, 
governmental entities and others diversifying into the field is intense and is expected to increase.
We may face competition from other companies in numerous industries including pharmaceuticals, biotechnology, medical 
devices and drug delivery. Competition for larsucosterol, if approved, will depend on the specific indication(s) for which 
larsucosterol is approved. Alfasigma S.p.A., Nterica Bio, Inc., Aldeyra Therapeutics, Inc., Surrozen, Inc. and several academic 
institutes, including Yale University, and others have development plans for products or evaluating marketed products to treat 
AH.
We are engaged in the development of novel therapeutic technologies. Our resources are limited and we may experience 
technical challenges inherent in such novel technologies. Competitors have developed or are in the process of developing 
technologies that are, or in the future may be, the basis for competitive products. Some of these products may have an entirely 
different approach or means of accomplishing similar therapeutic effects than our products and product candidates. Our 
competitors may develop products that are safer, more effective or less costly than our products and product candidates and, 
therefore, present a serious competitive threat to our product candidates and product offerings.
The widespread acceptance of therapies that are alternatives to ours may limit market acceptance of our products and 
product candidates if commercialized. Many of these treatments are widely accepted in the medical community and have a long 
history of use. The established use of these competitive products may limit the potential for our products and product candidates 
to receive widespread acceptance if and when commercialized.
Our relationships with physicians, patients and third-party payers are subject to anti-kickback, fraud and abuse, privacy and 
other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, 
reputational harm and diminished profits and future earnings
Healthcare providers, physicians and third-party payers will play a primary role in the recommendation and prescription of 
any product candidates for which we obtain marketing approval. Our future arrangements with third-party payers and customers 
may expose us and our partners to broadly applicable fraud and abuse and other healthcare laws and regulations that may 
constrain the business or financial arrangements and relationships through which we and our partners may market, sell and 
distribute our products. As a pharmaceutical company, even though we do not and may not control referrals of healthcare 
services or bill directly to Medicare, Medicaid or other third-party payers, federal and state healthcare laws and regulations 
pertaining to fraud and abuse and patients’ rights are and will be applicable to our business. These regulations include:
•
the Federal Healthcare Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully 
soliciting, offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward, or 
in return for, either the referral of an individual for, or the purchase, order or recommendation of, any good or service, 
for which payment may be made under a federal healthcare program such as Medicare and Medicaid, and which will 
constrain our marketing practices and the marketing practices of our licensees, educational programs, pricing policies, 
and relationships with healthcare providers or other entities;
•
the federal physician self-referral prohibition, commonly known as the Stark Law, which prohibits physicians from 
referring Medicare or Medicaid patients to providers of “designated health services” with whom the physician or a 
member of the physician’s immediate family has an ownership interest or compensation arrangement, unless a 
statutory or regulatory exception applies;

 
53
•
federal false claims laws that prohibit, among other things, individuals or entities from knowingly presenting, or causing 
to be presented, claims for payment from Medicare, Medicaid, or other government reimbursement programs that are 
false or fraudulent, and which may expose entities that provide coding and billing advice to customers to potential 
criminal and civil penalties, including through civil whistleblower or qui tam actions, and including as a result of claims 
presented in violation of the Federal Healthcare Anti-Kickback Statute, the Stark Law or other healthcare-related laws, 
including laws enforced by the FDA;
•
the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which imposes criminal and civil 
liability for executing a scheme to defraud any healthcare benefit program and also created federal criminal laws that 
prohibit knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false 
statements in connection with the delivery of or payment for healthcare benefits, items or services, and which as 
amended by the Health Information Technology for Economic and Clinical Health Act, or HITECH, also imposes 
obligations, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission 
of individually identifiable health information;
•
federal physician sunshine requirements under the Affordable Care Act, which requires manufacturers of drugs, 
devices, biologics and medical supplies to report annually to HHS information related to payments and other transfers 
of value to physicians, other healthcare providers, and teaching hospitals, and ownership and investment interests held 
by physicians and other healthcare providers and their immediate family members and applicable group purchasing 
organizations;
•
the Federal Food, Drug, and Cosmetic Act, which, among other things, strictly regulates drug product marketing, 
prohibits manufacturers from marketing drug products for off-label use and regulates the distribution of drug samples; 
•
state and foreign law equivalents of each of the above federal laws, such as anti-kickback and false claims laws, which 
may apply to sales or marketing arrangements and claims involving healthcare items or services reimbursed by non- 
governmental third-party payers, including private insurers, state laws requiring pharmaceutical companies to comply 
with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance 
promulgated by the federal government and which may require drug manufacturers to report information related to 
payments and other transfers of value to physicians and other healthcare providers or marketing expenditures, many 
of which differ from each other in significant ways and often are not preempted by federal laws such as HIPAA, thus 
complicating compliance efforts; and 
•
HIPPA and other state and foreign laws governing the privacy and security of health information or other personal 
information, such as the European Union General Data Protection Regulation ("GDPR") (EU 2016/679), which require 
limitations regarding access and use of certain personal and health information.
Efforts to ensure that our business arrangements with third parties comply with applicable healthcare and privacy laws and 
regulations do and will in the future involve substantial costs. It is possible that governmental authorities will conclude that our 
business practices may not comply with current or future statutes, regulations or case law involving applicable fraud and abuse 
or other healthcare or privacy laws and regulations. If our operations are found to be in violation of any of these laws or any other 
governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, 
damages, fines, imprisonment, exclusion from government funded healthcare programs, such as Medicare and Medicaid, and the 
curtailment or restructuring of our operations. If any physicians or other healthcare providers or entities with whom we expect to 
do business are found to not 

 
54
be in compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusions 
from government funded healthcare programs.
We could be exposed to significant product liability claims which could be time consuming and costly to defend, divert 
management attention and adversely impact our ability to obtain and maintain insurance coverage
The testing, clinical development, manufacture, marketing and sale of our products and product candidates involve an 
inherent risk that product liability claims will be asserted against us. Our present product liability insurance may be inadequate 
and may not fully cover the costs of any claim(s) or any ultimate damages we might be required to pay. Product liability claims or 
other claims related to our products and product candidates, regardless of their outcome, could require us to spend significant 
time and money in litigation or to pay significant damages. Any successful product liability claim may prevent us from obtaining 
adequate product liability insurance in the future on commercially desirable or reasonable terms. In addition, product liability 
coverage may cease to be available in sufficient amounts or at an acceptable cost. An inability to obtain sufficient insurance 
coverage at an acceptable cost or otherwise to protect against potential product liability claims could prevent or inhibit the 
commercialization of our products or product candidates if and when approved. A product liability claim could also significantly 
harm our reputation and delay or prevent market acceptance of our products and product candidates.
Healthcare reform measures could hinder or prevent our product candidates’ commercial success
In the United States and some foreign jurisdictions, there have been, and we expect there will continue to be, a number of 
legislative and regulatory changes to the healthcare system, including cost-containment measures that may reduce or limit 
coverage and reimbursement for newly approved drugs, that could prevent or delay marketing approval of our product 
candidates, restrict or regulate post-approval activities, affect our ability to profitably sell any product or product candidates for 
which we obtain marketing approval and otherwise affect our future revenue and profitability and the future revenue and 
profitability of our collaborators or potential collaborators. In particular, there have been and continue to be a number of 
initiatives at the U.S. federal and state levels that seek to reduce healthcare costs and improve the quality of healthcare. For 
examples of healthcare reform measures, see “Part I, Item 1. Business—Government Regulation—Healthcare Reform” above.
Market acceptance of, and market opportunity for, our products or product candidates is uncertain, and failure to achieve 
market acceptance will delay our ability to generate or grow revenues
Our future financial performance will depend upon the successful introduction and customer acceptance of our products or 
products we have licensed to others, including larsucosterol, if approved. Even if approved for marketing, this product candidate 
may not achieve market acceptance or the market opportunities for our current and potential future product candidates may be 
smaller than we predicted, which could adversely affect our future product revenues and could cause our business to suffer. The 
degree of market acceptance will depend upon a number of factors, including:
•
the degree of unmet need in the market for the approved indication(s);
•
the receipt of regulatory clearance of marketing claims for the uses that we are developing;
•
the approved product labeling;
•
pricing, reimbursement and formulary access;
•
the degree of resources applied to promotion and other commercial activities;
•
the establishment and demonstration in the medical community of the safety and clinical efficacy of our products and 
their potential advantages over existing therapies; and
•
pricing, access and reimbursement policies of government and third-party payors such as insurance companies, health 
maintenance organizations, hospital formularies and other health plan administrators.

 
55
Physicians, patients, payers or the medical community in general may be unwilling to accept, utilize or recommend any of 
the products we have developed. If these products do not achieve widespread market acceptance, we will not achieve 
meaningful revenues.
If we or our third-party collaborators are unable to train physicians to use our products and product candidates to treat 
patients’ diseases or medical conditions, we may not achieve market acceptance of our products
Broad use of certain of our products or out-licensed products will require extensive training of numerous physicians on their 
proper and safe use. The time required to train physicians could delay adoption of our products and adversely affect market 
acceptance of our products. We or third parties selling our products may be unable to rapidly train physicians in numbers 
sufficient to generate adequate demand for our products. Any delay in training would materially delay the demand for our 
products and harm our business and financial results. In addition, we or our partners may expend significant funds towards such 
training before any orders are placed for our products, which would increase our expenses and harm our financial results.
If users of our products are unable to obtain adequate reimbursement from third-party payers, obtain access to our 
product(s), or if new restrictive legislation is adopted, market acceptance of our products may be limited and we may not achieve 
meaningful revenues or profitability
The continuing efforts of government and insurance companies, health maintenance organizations and other payers of 
healthcare costs to contain or reduce costs of health care may affect our future revenues and profitability, and the future 
revenues and profitability of our potential customers, suppliers and third-party collaborators and the availability of capital. For 
example, in certain foreign markets, pricing, access and/or profitability of prescription pharmaceuticals is subject to government 
control. In the United States, recent federal and state government initiatives have been directed at lowering the total cost of 
health care, and the U.S. Congress and state legislatures will likely continue to focus on health care reform, the cost of 
prescription pharmaceuticals and on the reform of the Medicare and Medicaid systems. While we cannot predict whether any 
such legislative or regulatory proposals will be adopted, the announcement or adoption of such proposals could materially harm 
our business, financial condition and results of operations.
The successful commercialization of our current and future products will depend in part on the extent to which appropriate 
reimbursement levels for the cost of our products and related treatment are obtained from governmental authorities, private 
health insurers and other organizations, such as health maintenance organizations (“HMOs”). Third-party payers often limit 
access, payments and/or reimbursement for medical products and services. Also, the trend toward managed health care in the 
United States and the concurrent growth of organizations such as HMOs, which could control or significantly influence the 
purchase of health care services and products, as well as legislative proposals to reform health care or reduce government 
insurance programs, may limit access, reimbursement or payment for our products. The cost containment measures that health 
care payers and providers are instituting and the effect of any health care reform could materially harm our ability to operate 
profitably and access capital.
Risks related to actions on trade by the U.S. and foreign governments could adversely affect our Company's results of 
operations and financial condition
Changes in U.S. trade policy have resulted in, and could continue to result in, one or more U.S. trading partners adopting 
responsive trade policy or tariffs making it more difficult or costly for us to export our products to those countries. The imposition 
of additional tariffs by the United States could result in the adoption of additional tariffs by other countries. These measures could 
result in increased costs for goods imported into the United States. A potential resulting trade war could have a significant 
adverse effect on world trade and the world economy. This in turn could require us to increase prices to our customers which may 
reduce demand, or, if we are unable to increase prices, result in lowering our margin on products sold.

 
56
We cannot predict future trade policy or the terms of any renegotiated trade agreements and their impact on our business. 
The adoption and expansion of trade restrictions, the occurrence of a trade war, or other governmental action related to tariffs or 
trade agreements or policies has the potential to adversely impact demand for our products, our costs, our customers, our 
suppliers, and the U.S. economy, which in turn could adversely impact our business, financial condition, access to capital and 
results of operations.
 
Risks Related To Our Common Stock
Our stock price does not currently meet the minimum bid price for continued listing on Nasdaq. Our ability to continue 
operations or to publicly or privately sell equity securities and the liquidity of our common stock could be adversely affected if 
we are delisted from Nasdaq
On January 9, 2025, we received a written notification from The Nasdaq Stock Market LLC (“Nasdaq”) informing us that 
because the closing bid price of our common stock was below $1.00 for 30 consecutive trading days (the “Minimum Closing Bid 
Price Requirement”), our shares no longer complied with the Minimum Closing Bid Price Requirement for continued listing on 
Nasdaq under Nasdaq Marketplace Rule 5550(a)(2) (the “Nasdaq Marketplace Rules”). We have until July 8, 2025 to regain 
compliance with Nasdaq’s listing requirements by having the closing bid price of our common stock listed on Nasdaq be at least 
$1.00 for at least 10 consecutive trading days.  
If we do not regain compliance during the compliance period, then Nasdaq may grant us a second 180 calendar day grace 
period to regain compliance, provided we (i) meet the continued listing requirement for market value of publicly-held shares and 
all other initial listing standards for Nasdaq, other than the Minimum Closing Bid Price Requirement, and (ii) we notify Nasdaq of 
our intent to cure the deficiency. One strategy to regain compliance in such circumstances would be to implement a reverse 
stock split. For example, we implemented such a strategy to regain compliance with the Minimum Closing Bid Price Requirement 
when we completed a 1-for-10 reverse stock split in December 2022. We could also appeal Nasdaq’s determination to delist our 
securities to a Hearings Panel. During any appeal process, shares of our common stock would continue to trade on The Nasdaq 
Capital Market.
There can be no assurance that we will regain compliance with the requirements for listing our common stock on The 
Nasdaq Capital Market. Delisting could adversely affect our ability to raise additional capital through the public or private sale of 
equity securities, would significantly affect the ability of investors to trade our securities and would negatively affect the value 
and liquidity of our common stock. Delisting could also have other negative results, including the potential loss of confidence by 
employees, the loss of institutional investor interest and fewer business development opportunities. 
Additionally, there can be no assurance that a reverse stock split would result in a per-share market price that will maintain 
compliance with the Minimum Closing Bid Price Requirement, that will attract institutional investors or investment funds or that 
such share price will satisfy investing guidelines of institutional investors or investment funds. As a result, the trading liquidity of 
our common stock could decline.  Further, if the market price of our common stock declines, the percentage decline may be 
greater than would have occurred in the absence of a reverse stock split.
Our operating history makes evaluating our stock difficult 
Our quarterly and annual results of operations have historically fluctuated and we expect will continue to fluctuate for the 
foreseeable future. We believe that period-to-period comparisons of our operating results should not be relied upon as predictive 
of future performance. Our prospects must be considered in light of the risks, expenses and difficulties encountered by 
companies with a limited number of approved pharmaceutical products, particularly companies in new and rapidly evolving 
markets such as pharmaceuticals and biotechnology. To address these risks, we must, among other things, obtain regulatory 
approval for and commercialize our product candidates, which may not occur. We may not be successful in addressing these risks 
and difficulties. We expect to require additional funds to complete the development of larsucosterol or our other product 
candidates, and to fund operating losses to be incurred in the next several years.

 
57
The price of our common stock may be volatile
The stock markets in general, and the markets for pharmaceutical stocks in particular, have experienced extreme volatility 
that has often been unrelated to the operating performance of particular companies. These broad market fluctuations may 
adversely affect the trading price of our common stock. Price declines in our common stock have in the past and could in the 
future result from general market and economic conditions and a variety of other factors, including:
•
adverse results (including adverse events or failure to demonstrate safety, efficacy or statistical significance) or delays 
in our clinical and non-clinical trials of larsucosterol or other product candidates;
•
announcements of FDA non-approval of our product candidates, approvals with narrow indications, commercially 
limiting labels, clinical holds or delays in the FDA or other foreign regulatory agency review process;
•
adverse actions taken by regulatory agencies or law enforcement agencies with respect to our products and product 
candidates, clinical trials, manufacturing processes, accounting practices or sales and marketing activities, or those of 
our third-party collaborators;
•
announcements of technological innovations, patents, product approvals, sales performance or new products by our 
competitors;
•
failure of third-party collaborators to continue development or successful commercialization of the respective products 
and product candidates they are developing or commercializing;
•
regulatory, judicial and patent developments in the United States and foreign countries;
•
any lawsuit or arbitration involving us or our products and product candidates including intellectual property 
infringement or product liability suits;
•
announcements concerning our competitors, or the biotechnology or pharmaceutical industries in general;
•
developments concerning our strategic alliances or termination of such alliances or acquisitions or dispositions;
•
actual or anticipated variations in our operating results;
•
changes in recommendations by securities analysts, misstatements or mischaracterizations in analyst reports or 
dropping or lack of analyst coverage;
•
negative press coverage or online or social media misinformation about the Company or its partners or their respective 
products or personnel;
•
deviations in our operating results from the estimates of analysts;
•
sales of our common stock by our executive officers or directors or sales of substantial amounts of common stock by us 
or others;
•
potential failure to meet continuing listing standards from The Nasdaq Capital Market;
•
loss or disruption of facilities due to natural disasters;
•
changes in accounting principles; or
•
loss of any of our key scientific or management personnel.
The market price of our common stock may fluctuate significantly in response to factors which are beyond our control. The 
stock market in general has periodically experienced extreme price and volume fluctuations. For example, trade wars and other 
governmental actions, pronouncements by the Federal 

 
58
Reserve, inflation, outbreaks of war such as between Russia and Ukraine or Israel and Hamas, oil price volatility and other factors 
have caused broad stock market and industry fluctuations. In addition, the market prices of securities of technology and 
pharmaceutical companies have also been extremely volatile, and have experienced fluctuations that often have been unrelated 
or disproportionate to the operating performance of these companies. These broad market fluctuations could result in extreme 
fluctuations in the price of our common stock, which could cause a decline in the value of our common stock.
In the past, following periods of volatility in the market price of a particular company’s securities, litigation has often been 
brought against that company. If litigation of this type is brought against us, it could be extremely expensive, particularly if we 
were to lose the lawsuit and have to pay damages, and divert management’s attention and our Company’s resources.
Investors may experience substantial dilution of their investment
In order to raise capital and for other purposes, we have in the past and may in the future offer and issue additional shares 
of our common stock or other securities convertible into or exchangeable for our common stock, and the price per share at which 
we sell additional shares of our common stock or other securities convertible into or exchangeable for our common stock in 
future transactions may be higher or lower than the price per share at which investors in our common stock bought their shares. 
In the past we have engaged in equity financings that have resulted in dilution to our existing stockholders. In August 2024, we 
filed the 2024 Registration Statement to offer up to $250.0 million of securities from time to time in one or more public offerings.  
As of March 25, 2025, we had up to $250.0 million of our securities available for sale under the 2024 Registration Statement. 
However, due to the SEC’s “baby shelf” rules discussed above, only up to approximately $8.7 million of our securities are 
available for sale under the 2024 Registration Statement. Any sales in the public market of our common stock in offerings under 
our shelf registration statement or otherwise, could adversely affect prevailing market prices for our common stock. In addition, 
investors have in the past and could in the future experience substantial dilution of their investment as a result of subsequent 
exercises of outstanding warrants to purchase our common stock. 
As of December 31, 2024, common warrants to purchase 3,591,027 shares of our common stock were outstanding. In 
addition, as of December 31, 2024, 275,000 shares of our common stock were issuable from outstanding restricted stock units 
under our stock option plan, 4,619,287 shares of our common stock were issuable upon exercise of stock options outstanding 
under our stock option plans at a weighted average exercise price of $6.59 per share, 1,844,180 additional shares of common 
stock were reserved for potential future issuance under our stock option plan, and an aggregate of 49,667 shares of common 
stock were reserved for potential future issuance under our 2000 Employee Stock Purchase Plan. At December 31, 2024, we had 
350,000,000 authorized shares of common stock and, as such, we have the ability to issue significantly more shares and options 
in the future, which would result in substantial dilution to our stockholders, including investors in this offering.
Our ability to use net operating losses and certain other tax attributes is uncertain and may be limited
Our ability to use our federal and state net operating losses to offset potential future taxable income and related income 
taxes that would otherwise be due is dependent upon our generation of future taxable income before the expiration dates of the 
net operating losses, and we cannot predict with certainty when, or whether, we will generate sufficient taxable income to use 
any or all of our net operating losses. In addition, utilization of net operating losses to offset potential future taxable income and 
related income taxes that would otherwise be due is subject to annual limitations under the “ownership change” provisions of 
Sections 382 and 383 of the Internal Revenue Code of 1986, as amended (the "Internal Revenue Code") and similar state 
provisions, which may result in the expiration of net operating losses before future utilization. In general, under the Code, if a 
corporation undergoes an “ownership change,” generally defined as a greater than 50% change (by value) in its equity ownership 
over a three-year period, the corporation’s ability to use its pre-change net operating losses and other pre-change tax 

 
59
attributes (such as research and development credit carryforwards) to offset its post-change taxable income or taxes may be 
limited. Our equity offerings and other changes in our stock ownership, some of which are outside of our control, may have 
resulted or could in the future result in an ownership change. If an ownership change limitation were to apply, utilization of our 
net operating losses and tax credit carryforwards could be limited in future periods and a portion of the carryforwards could 
expire before being available to reduce future income tax liabilities.
 
We have broad discretion over the use of our cash and investments, and their investment may not always yield a favorable 
return
Our management has broad discretion over how our cash and investments are made and used. We may from time to time 
invest in ways with which our stockholders may not agree and that do not yield favorable returns.
Our certificate of incorporation, our bylaws and Delaware law contain provisions that could discourage another company from 
acquiring us
Provisions of Delaware law, our certificate of incorporation and bylaws may discourage, delay or prevent a merger or 
acquisition that stockholders may consider favorable, including transactions in which you might otherwise receive a premium for 
your shares. These provisions include:
•
authorizing the issuance of “blank check” preferred stock without any need for action by stockholders;
•
providing for a classified board of directors with staggered terms;
•
requiring supermajority stockholder voting to effect certain amendments to our certificate of incorporation and bylaws;
•
eliminating the ability of stockholders to call special meetings of stockholders;
•
prohibiting stockholder action by written consent; and
•
establishing advance notice requirements for nominations for election to the board of directors or for proposing 
matters that can be acted on by stockholders at stockholder meetings.
Our bylaws provide that the Court of Chancery of the State of Delaware is the exclusive forum for substantially all disputes 
between us and our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes 
with us or our directors, officers or employees
Our bylaws provide that the Court of Chancery of the State of Delaware is the exclusive forum for any derivative action or 
proceeding brought on behalf of our Company, any action asserting a claim of breach of a fiduciary duty owed by any director, 
officer or other employee of our Company, any action asserting a claim arising pursuant to any provision of the General 
Corporation Law of Delaware or our Certificate of Incorporation or bylaws or any action asserting a claim governed by the internal 
affairs doctrine. The choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds 
favorable for disputes with us or our directors, officers or other employees, which may discourage such lawsuits against us and 
our directors, officers and other employees. 
Alternatively, if a court were to find the choice of forum provision contained in our certificate of incorporation to be 
inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other 
jurisdictions, which could adversely affect our business and financial condition.

 
60
Because our Company is a “smaller reporting company,” we may take advantage of certain scaled disclosures available to us, 
resulting in holders of our securities receiving less Company information than they would receive from a public company that 
is not a smaller reporting company
We are a “smaller reporting company” as defined in the Exchange Act. As a smaller reporting company, we may take 
advantage of certain of the scaled disclosures available to smaller reporting companies and will be able to take advantage of 
these scaled disclosures for so long as (i) our voting and non-voting common stock held by non-affiliates is less than $250 million 
measured on the last business day of our second fiscal quarter, or (ii) our annual revenue is less than $100 million during the 
most recently completed fiscal year and our voting and non-voting common stock held by non-affiliates is less than $700 million 
measured on the last business day of our second fiscal quarter. To the extent we take advantage of any reduced disclosure 
obligations, it may make it harder for investors to analyze our Company’s results of operations and financial prospectus in 
comparison with other public companies.

 
61
Item 1B. Unresolved Staff Comments.
None.
 
Item 1C. Cybersecurity.
 
Cybersecurity Risk Management and Strategy:
We recognize the importance of assessing, identifying, and managing material risks associated with cybersecurity threats, 
as such term is defined in Item 106(a) of Regulation S-K. These risks include, among other things, operational risks; intellectual 
property theft; fraud; extortion; harm to employees or customers; violation of privacy or security laws and other litigation and 
legal risk; and reputational risks. 
We also maintain an incident response plan to coordinate the activities we take to protect against, detect, respond to and 
remediate cybersecurity incidents, as such term is defined in Item 106(a) of Regulation S-K, as well as to comply with potentially 
applicable legal obligations and mitigate brand and reputational damage. 
We have implemented several cybersecurity processes, technologies, and controls to aid in our efforts to identify, assess, 
and manage material risks, as well as to test and improve our incident response plan. Our approach includes, among other 
things:
•
We conduct regular network and endpoint monitoring, vulnerability assessments, and penetration testing to improve 
our information systems, as such term is defined in Item 106(a) of Regulation S-K. Disaster Recovery is tested using 
various methods such as recovery exercises to simulate a response to a cybersecurity incident, and we use the findings 
to improve our security, processes, procedures and technologies.
•
Regular cybersecurity training programs are in place for employees, management and directors. In addition, we 
conduct annual customer data handling and use requirements training for all employees. 
•
We compare our processes to standards set by the NIST.
•
Incident handling incorporates the NIST incident handling framework to develop our cybersecurity response procedures 
and to help us identify, protect, detect, respond and recover when there is an actual or potential cybersecurity incident.
•
We routinely identify and filter out potential threats through threat intelligence processes, attack signatures, and 
geographic IP filtering.
•
We closely monitor emerging data protection laws such as GDPR and carefully implement changes to our processes 
when required for compliance.
•
We conduct regular phishing email simulations for all employees to enhance awareness and responsiveness to such 
possible threats.
•
Through policy, practice and contract (as applicable), we require employees, as well as third-parties who provide 
services on our behalf, to treat customer information and data with care.
•
We maintain cybersecurity insurance coverage. 
Our process for identifying and assessing material risks from cybersecurity threats incorporates a risk matrix for identifying 
risk levels for interconnected systems. As part of this process appropriate disclosure personnel will collaborate with subject 
matter specialists, as necessary, to gather insights for identifying and assessing material cybersecurity threat risks, their 
severity, and potential mitigations. 

 
62
As part of the above approach and processes, we regularly engage with assessors, consultants and other third-parties to 
review various parts of our cybersecurity program to help identify areas for continued focus, improvement and/or compliance.
Our processes also address oversight and identification of cybersecurity threat risks from our use of third-party service 
providers, including those in our supply chain. This involves, among other things, conducting pre-engagement risk-based 
diligence, implementing contractual security and notification provisions, and ongoing monitoring as needed.
We describe whether and how risks from identified cybersecurity threats have materially affected or are reasonably likely 
to materially affect us, including our business strategy, results of operations, or financial condition, included as part of our risk 
factor disclosures at Item 1A of this Annual Report on Form 10-K, which disclosures are incorporated by reference herein. 
In the last two fiscal years, we have experienced no material cybersecurity incidents, and the expenses we have incurred 
from any cybersecurity incidents were immaterial. This includes penalties and settlements, of which there were none.
Cybersecurity Governance:
Cybersecurity is an important part of our risk management processes and an area of increasing focus for our Board of 
Directors (our “Board” or “Board of Directors”) and management.
The audit committee of our Board (the "Audit Committee") is responsible for the oversight of risks from cybersecurity 
threats. At least annually, the Audit Committee receives an overview from management of our cybersecurity threat risk 
management and strategy processes covering topics such as data security posture, results from third-party assessments, 
progress towards pre-determined risk-mitigation-related goals, our incident response plan, and material cybersecurity threat risks 
or incidents and developments, as well as the steps management has taken to respond to such risks. In such sessions, Audit 
Committee members generally receive materials including a cybersecurity scorecard and other materials indicating current and 
emerging cybersecurity threat risks, and describing our ability to mitigate those risks, and discusses such matters with our 
Executive Director of IT. Members of the Audit Committee and the full Board are also encouraged to regularly engage in ad hoc 
conversations with management on cybersecurity-related news events and discuss any updates to our cybersecurity risk 
management and strategy programs. Materials of our cybersecurity threat risk management and strategy processes are also 
periodically reviewed with the full Board. 
Our cybersecurity risk management and strategy processes, which are discussed in greater detail above, are led by our 
Executive Director of IT. This individual has over 25 years of prior work experience in various roles involving: managing 
information security, developing cybersecurity strategy, implementing effective information and cybersecurity programs, and 
developing and implementing IT change control policies and procedures, as well as holds several relevant degrees and 
certifications, including a master’s degree in Computer Information Systems, Certified in Security+, and has completed extensive 
cybersecurity training and testing in: Certified Professional Hacker (EMC White Hat Training), ISC2 Certified Information Systems 
Security Professional (CISSP) Training, and NIST Framework Development and Deployment.
Our Executive Director of IT is informed about and monitors the prevention, mitigation, detection, and remediation of 
cybersecurity incidents through management of, and participation in, the cybersecurity risk management and strategy processes 
described above, including the operation of our incident response plan. If a cybersecurity incident is determined to be a material 
cybersecurity incident, our incident response plan and cybersecurity disclosure controls and procedures define the process to 
disclose such a material cybersecurity incident.

 
63
As discussed above, our Executive Director of IT reports to our CEO and informs the members of the Audit Committee and 
the full Board about cybersecurity threat risks, among other cybersecurity related matters. All executives attend cybersecurity 
training annually.
 
Item 2. Properties.
The following chart indicates the facilities that we lease, the location and size of each such facility and their designated use.
 
Location
 
Approximate
Square Feet 
 
Operation
 
Expiration
Cupertino, CA
 30,149 sq. ft.
 Office, Laboratory and 
Manufacturing
 Lease expires 2027 (with an option to renew for an additional 
five years)
We believe that our existing facilities are adequate to meet our current and foreseeable requirements.
 
Item 3. Legal Proceedings.
We are not a party to any material legal proceedings.
 
Item 4. Mine Safety Disclosures.
Not applicable.

 
64
PART II
Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities. 
Market Information
Our common stock is traded on the Nasdaq Capital Market under the symbol “DRRX”.
Holders
As of March 25, 2025, there were approximately 69 holders of record of shares of our common stock. This does not include 
the number of persons whose stock is in nominee or “street name” accounts through brokers. 
Dividend Policy
We have never paid cash dividends on our common stock. We currently intend to retain any future earnings to fund the 
development and growth of our business. Therefore, we do not currently anticipate paying any cash dividends in the foreseeable 
future.
Purchases of Equity Securities by the Issuer and Affiliated Purchasers
None.
Item 6. [Reserved]

 
65
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.
This Management’s Discussion and Analysis of Financial Condition and Results of Operations as of December 31, 2024 and 
2023 should be read in conjunction with our financial statements, including the Notes thereto, and “Risk Factors” section included 
elsewhere in this Annual Report on Form 10-K. References to the “Company,” “DURECT,” “we,” “us” and “our” refer to DURECT 
Corporation. 
Unless otherwise noted, this Management’s Discussion and Analysis of Financial Condition and Results of Operations relates 
solely to our continuing operations and does not include the operations of our ALZET product line. See “ALZET Commercial 
Product Line” in Part I, Item 1, above and Note 11. Discontinued Operations of our financial statements in this Annual Report on 
Form 10-K for additional information.
Special Note Regarding Forward-Looking Statements
This Form 10-K contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 
1934, as amended, and Section 27A of the Securities Act of 1933, as amended. When used in this Annual Report on Form 10-K or 
elsewhere by management from time to time, the words “believe,” “anticipate,” “intend,” “plan,” “estimate,” “expect,” “may,” 
“will,” “could,” “potentially,” “possibility,” and similar expressions are forward-looking statements. Such forward-looking 
statements contained herein are based on current expectations and beliefs. Any such forward-looking statements are not 
guarantees of future performance and involve risks and uncertainties. Actual events or results may differ materially from those 
discussed in the forward-looking statements as a result of various factors.
Forward-looking statements made in this report include, but are not limited to, statements about:
•
potential uses and benefits of larsucosterol to treat alcohol-associated hepatitis (“AH”), metabolic dysfunction-
associated steatohepatitis (“MASH”), or other conditions; 
•
the potential benefits of Breakthrough Therapy Designation and Fast Track Designation;
•
the results and timing of clinical trials, including clinical trial plans and timelines for larsucosterol;
•
the likelihood of future clinical trial results of larsucosterol being positive with statistical significance and/or similar to 
results from previous trials, the possible commencement of future clinical trials;
•
our communications with the U.S. Food and Drug Administration (“FDA”) regarding the trial design for a Phase 3 clinical 
trial for larsucosterol in AH and our ability to confirm the efficacy and safety of larsucosterol in AH patients to support a 
New Drug Application filing with the FDA; 
•
our plans and ability to obtain sufficient capital resources to initiate a Phase 3 clinical trial of larsucosterol in AH and 
present topline results within two years of initiation;
•
our intention to seek, and ability to enter into and maintain strategic alliances and collaborations;
•
the potential benefits and uses of our products and product candidates, including larsucosterol;
•
the potential milestone, sub-license fees and royalty payments we may receive from Orient Pharma Co., Ltd.;
•
market opportunities for product candidates in our product development pipeline;
•
potential regulatory filings for or approval of larsucosterol;

 
66
•
the progress and results of our research and development programs and our evaluation of additional development 
programs;
•
requirements for us to purchase pre-clinical, clinical trial and commercial supplies of product candidates and/or 
products, as well as raw materials or active pharmaceutical ingredients from third parties, and the ability of third 
parties to provide us with our requirements for such supplies and raw materials;
•
conditions for obtaining regulatory approval of our product candidates;
•
submission and timing of applications for regulatory approval and timing of responses to our regulatory submissions;
•
the impact of FDA, European Medicines Agency and other government regulation on our business;
•
our ability to obtain, assert and protect patents and other intellectual property rights, including intellectual property 
licensed to our collaborators, as well as avoiding the intellectual property rights of others;
•
products and companies that will compete with our products and the product candidates we develop and/or license to 
third-party collaborators;
•
our employees, including the number of employees and the continued services of key management, technical and 
scientific personnel;
•
our future performance, including our anticipation that we will not derive meaningful revenues from our products and 
product candidates in development for at least the next twelve months, potential for future inventory write-offs and our 
expectations regarding our ability to achieve profitability;
•
sufficiency of our cash resources, anticipated capital requirements and capital expenditures, our need or desire for 
additional financing, including potential sales under our shelf registration statement and our ability to continue to 
operate as a going concern;
•
our expectations regarding research and development expenses, and selling, general and administrative expenses;
•
the composition of future revenues; and
•
accounting policies and estimates.
We caution you that the foregoing list may not contain all of the forward-looking statements made in this Annual Report on 
Form 10-K. Forward-looking statements are not guarantees of future performance and involve risks and uncertainties. Actual 
events or results may differ materially from those discussed in the forward-looking statements as a result of various factors. For a 
more detailed discussion of such forward looking statements and the potential risks and uncertainties that may impact upon their 
accuracy, see the “Risk Factors” section as well as the “Overview” and "Results of Operations" sections of this Management’s 
Discussion and Analysis of Financial Condition. These forward-looking statements reflect our view only as of the date of this 
report. We undertake no obligations to update any forward-looking statements. You should also carefully consider the factors set 
forth in other reports or documents that we file from time to time with the Securities and Exchange Commission (“SEC”). 
This discussion and analysis generally addresses 2024 and 2023 items and year-over-year comparisons between 2024 and 
2023. Discussions of 2022 items and year-over-year comparisons between 2023 and 2022 that are not included in this Annual 
Report on Form 10-K can be found in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of 
Operations” in our 

 
67
Annual Report on Form 10-K for the fiscal year ended December 31, 2023, filed with the SEC on March 28, 2024, which is 
available free of charge on the SEC’s website at www.sec.gov and the investor relations section of our website at 
www.durect.com/investors/sec-filings/. These website addresses are intended to be inactive, textual references only. None of the 
materials on, or accessible through, these websites are part of this report or are incorporated by reference herein. 
Overview
We are a biopharmaceutical company advancing novel and potentially lifesaving investigational therapies derived from our 
Epigenetic Regulator Program. Larsucosterol, a new chemical entity in clinical development, is the lead candidate in our 
Epigenetic Regulator Program. An endogenous, orally bioavailable small molecule, larsucosterol has been shown in both in vitro 
and in vivo studies to play an important regulatory role in lipid metabolism, stress and inflammatory responses, and cell death 
and survival.  We are developing larsucosterol for alcohol-associated hepatitis (“AH”), a life-threatening acute liver condition with 
no approved therapeutics and 28-Day and 90-Day historical mortality rates of 20%-26% and 29%-31%, respectively. After 
completing a Phase 2a trial in which 100% of AH patients treated with larsucosterol survived the 28-Day study period, we 
conducted a double-blind, placebo-controlled Phase 2b clinical trial called AHFIRM (trial in AH to evaluate saFety and effIcacy of 
laRsucosterol treatMent). Through our AHFIRM trial, we evaluated larsucosterol’s potential to reduce mortality or liver 
transplantation compared to a placebo with or without steroids at the investigators’ discretion. In total, we enrolled 307 patients 
at leading hospitals in the U.S., Australia, E.U. and U.K.  In November 2023, we announced topline data from the AHFIRM trial that 
showed a compelling efficacy signal in favor of larsucosterol in the key secondary endpoint of mortality at 90 days.  Both the 30 
mg and 90 mg larsucosterol doses demonstrated clinically meaningful trends in reduction of mortality at 90 days with mortality 
reductions of 41% (p=0.068) in the 30 mg arm and 35% (p=0.124) in the 90 mg arm compared with placebo. The numerical 
improvement in the primary endpoint of mortality or liver transplant at 90 days did not achieve statistical significance for either 
dose of larsucosterol. Both doses of larsucosterol in AHFIRM showed a more pronounced reduction in mortality in patients 
enrolled in the U.S., representing 76% of patients enrolled in the trial.  The reductions in mortality at 90 days were 57% 
(p=0.014) in the 30 mg arm and 58% (p=0.008) in the 90 mg arm compared with placebo in the U.S.  Larsucosterol was safe and 
well tolerated.  There were fewer treatment-emergent adverse events (“TEAEs”) in the larsucosterol arms compared with 
placebo. In May 2024, we announced that the FDA granted Breakthrough Therapy Designation ("BTD") to larsucosterol for the 
treatment of AH. In July 2024, we held a Type B meeting with the FDA to discuss the design of our planned Phase 3 clinical trial of 
larsucosterol in AH that, if successful, could support a potential New Drug Application filing.  In September 2024, we provided 
details on the design of our upcoming registrational Phase 3 trial which will evaluate larsucosterol for the treatment of patients 
with severe AH. The proposed Phase 3 trial design incorporates feedback from the Type B meeting held with the FDA under the 
BTD. It is designed as a randomized, double-blind, placebo-controlled, multi-center study conducted in the U.S., which will 
evaluate the safety and efficacy of larsucosterol for the treatment of patients with severe AH. The primary outcome measure will 
be a 90-day survival endpoint. The Phase 3 trial is planned to enroll approximately 200 patients randomized in a 1:1 ratio across 
two arms: (1) larsucosterol (30 mg) or (2) placebo, which will be added to the current standard of care, with or without 
methylprednisolone capsules in the placebo patients at the investigators’ discretion. Patients enrolled in the trial will be 
monitored for an additional 90 days to collect additional safety and outcomes data. Our plan is to initiate a Phase 3 clinical trial of 
larsucosterol in AH, subject to obtaining sufficient funding, and present topline results within two years of initiation. We have also 
investigated larsucosterol in patients with metabolic dysfunction-associated steatohepatitis (“MASH”), previously known as non-
alcoholic steatohepatitis or NASH with encouraging results in a Phase 1b clinical trial and may consider further development of 
larsucosterol for this and other indications. 

 
68
NOTE: POSIMIR® is a trademark of Innocoll Pharmaceuticals, Ltd. in the U.S. and a trademark of DURECT Corporation 
outside of the U.S. SABER® and ORADUR™  are trademarks of DURECT Corporation. Other trademarks referred to belong to their 
respective owners.  Full prescribing information for POSIMIR, including BOXED WARNING and Medication Guide can be found at 
www.posimir.com. Full prescribing information for PERSERIS, including BOXED WARNING and Medication Guide can be found at 
www.perseris.com.
In addition to our Epigenetic Regulator Program, we developed a novel and proprietary post-surgical pain product called 
POSIMIR® that utilizes our innovative SABER® platform technology to enable continuous sustained delivery of bupivacaine, a non-
opioid local analgesic, over three days in adults. In February 2021, POSIMIR received FDA approval for post-surgical pain 
reduction for up to 72 hours following arthroscopic subacromial decompression. In December 2021, we entered into a license 
agreement (as amended, the “Innocoll Agreement”) with Innocoll Pharmaceuticals Limited (“Innocoll”), pursuant to which we 
granted to Innocoll an exclusive, royalty-bearing, sublicensable right and license to develop, manufacture and commercialize 
POSIMIR in the United States. On November 8, 2024, we received notice that Innocoll is terminating the Innocoll Agreement, 
effective May 6, 2025.  Innocoll has committed to transfer all data and know-how related to POSIMIR to us, and we are evaluating 
next steps with respect to the commercialization of POSIMIR. We do not expect that this termination will have a material impact 
on our financial statements.
As a result of the assignment of certain patent rights, we have in the past received single digit sales-based earn-out 
payments from U.S. net sales of Indivior UK Limited (“Indivior”)’s PERSERIS® (risperidone) drug for schizophrenia and single-digit 
royalties from net sales of Orient Pharma Co., Ltd. (“Orient Pharma”)’s Methydur Sustained Release Capsules (“Methydur”) for 
the treatment of attention deficit hyperactivity disorder (“ADHD”) in Taiwan. In July 2024, Indivior announced discontinuation of 
sales and marketing for PERSERIS due to the highly competitive market and impending changes that are expected to intensify 
payor management in the treatment category in which PERSERIS participates. We do not expect that this discontinuation will 
have a material impact on our financial statements. 
Collaborative Research and Development and Other Revenue
Collaborative research and development and other revenue consists of four broad categories: (a) the recognition of upfront 
license payments over the period of our continuing involvement with third parties, (b) the reimbursement of qualified research 
expenses by third parties, (c) milestone payments in connection with our collaborative agreements and (d) royalties and earn-out 
payments from our agreements with third parties. During the last two years, we generated collaborative research and 
development revenues from collaborative agreements with Innocoll and others.
Product Revenue
We currently generate product revenue from the sale of certain key excipients used by pharmaceutical companies as raw 
materials in certain of their products, including Methydur and a marketed animal health product.
Because we consider our core business to be developing and commercializing pharmaceuticals, we do not intend to 
significantly increase our investments in or efforts to sell or market any of our existing product lines. However, we expect that we 
will continue to make efforts to increase our revenues related to collaborative research and development by entering into new 
collaborations.
Operating Results
Since our inception in 1998, we have generally had a history of operating losses. At December 31, 2024, we had an 
accumulated deficit of $597.3 million. Our net losses were $8.3 million and $27.6 million for the years ended December 31, 2024 
and 2023, respectively. These losses have resulted primarily from costs incurred to research and develop our product candidates 
and, to a lesser extent, from selling, general and administrative costs associated with our operations and product sales. We 
expect our 

 
69
research and development expenses and our selling, general and administrative expenses to decrease in 2025 compared to 
2024. We expect to incur continuing losses and negative cash flows from operations for the foreseeable future. As disclosed in 
the “Liquidity and Capital Resources” section, we have concluded that substantial doubt exists about our ability to continue as a 
going concern for a period of at least 12 months from the date of issuance of these financial statements.
Critical Accounting Estimates
The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires 
management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of 
contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenues and expenses 
during the reporting periods. We believe that the most significant accounting estimates and assumptions relate to revenue 
recognition, prepaid and accrued clinical costs, prepaid and accrued manufacturing costs, and valuation of warrant liabilities. We 
base our estimates on historical experience, current circumstances and various other assumptions that our management believes 
to be reasonable under the circumstances. In many instances, we could reasonably use different accounting estimates, and in 
some instances changes in the accounting estimates are reasonably likely to occur from period to period. Accordingly, actual 
results could differ significantly from the estimates made by our management. To the extent that there are differences between 
our estimates and actual results, our future financial statement presentation, financial condition, results of operations and cash 
flows will be affected. We believe that the critical accounting estimates discussed below are critical to understanding our 
historical and future performance, as these estimates involve a significant level of estimation uncertainty and have had or are 
reasonably likely to have a material impact on the financial condition or results of operations of the registrant.
Revenue Recognition
Product Revenue, Net
We manufacture and sell certain excipients used by pharmaceutical companies as raw materials in certain of their 
products, including Methydur and a marketed animal health product. Prior to the sale of the ALZET product line in November 
2024, we also manufactured and sold ALZET miniature osmotic pumps used in laboratory research.
Revenue from product sales is recognized when the customer obtains control of our product, which occurs at a point in 
time, typically upon shipment to the customer.  We expense incremental costs of obtaining a contract as and when incurred if the 
expected amortization period of the asset that we would have recognized is one year or less. 
Trade Discounts and Allowances:  We provide certain customers with discounts that are explicitly stated in our contracts 
and are recorded as a reduction of revenues in the period the related product revenue is recognized.   
Product Returns:  Consistent with industry practice, we generally offer customers a limited right of return for products that 
have been purchased from us.  We estimate the amount of our product sales that are probable of being returned by our 
customers and record this estimate as a reduction of revenue in the period the related product revenue is recognized. We 
currently estimate product return liabilities primarily using our own historical sales information.  We expect product returns to be 
minimal.
Collaborative Research and Development and Other Revenue
Royalties and Earn-outs:  For our arrangements that include sales-based royalties or earn-outs, including milestone 
payments based on first commercial sale or the level of sales, and the license is deemed to be the predominant item to which the 
royalties relate, we recognize revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to 
which some or all of the royalty or earn-out has been allocated has been satisfied (or partially satisfied).  

 
70
Research and development services: Revenue from research and development services that are determined to represent a 
distinct performance obligation related to services performed under the collaborative arrangements with our third-party 
collaborators is recognized over time as the related research and development services are performed. We evaluate the measure 
of progress each reporting period and recognize revenue on a cumulative catch-up basis, as collaborative research and 
development revenue. We perform analytical services for counterparties and recognize revenue upon completion of these 
services. Research and development expenses under the collaborative research and development agreements generally 
approximate or exceed the revenue recognized under such agreements over the term of the respective agreements. Deferred 
revenue may result when we do not expend the required level of effort during a specific period in comparison to funds received 
under the respective agreement.
We receive payments from our customers based on development cost schedules established in each contract. Up-front 
payments are recorded as deferred revenue upon receipt or when due, and may require deferral of revenue recognition to a 
future period until we performs our obligations under these arrangements.  Amounts are recorded as accounts receivable when 
our right to consideration is unconditional. We do not assess whether a contract has a significant financing component if the 
expectation at contract inception is such that the period between payment by the customer and the transfer of the promised 
goods or services to the customer will be one year or less.      
Prepaid and Accrued Clinical Costs
We incur significant costs associated with third party consultants and organizations for pre-clinical studies, clinical trials, 
contract research, regulatory advice and other research and development-related services. We are required to estimate 
periodically the cost of services rendered but unbilled based on management’s estimates. Estimates are determined each 
reporting period by reviewing the terms and conditions of the underlying contracts, reviewing open purchase orders and by 
having detailed discussions with internal clinical personnel and third-party service providers as to the nature and status of the 
services performed in relation to amounts billed. The costs for unbilled services are estimated by applying the rates and fees 
applicable in the underlying contracts. If these good faith estimates are inaccurate, actual expenses incurred could materially 
differ from our estimates. 
Common Stock Warrants
We review the terms of debt instruments, equity instruments, and other financing arrangements to determine whether 
there are embedded derivative features, including embedded conversion options that are required to be bifurcated and 
accounted for separately as a derivative financial instrument. Additionally, in connection with the issuance of financing 
instruments, we may issue freestanding options and warrants.
We account for our common stock warrants in accordance with ASC 480, Distinguishing Liabilities from Equity ("ASC 480") 
and ASC 815, Derivatives and Hedging (“ASC 815”). Based upon the provisions of ASC 480 and ASC 815, we account for common 
stock warrants and pre-funded warrants as current liabilities if the warrant fails the equity classification criteria. Common stock 
warrants and pre-funded warrants classified as liabilities are initially recorded at fair value on the grant date and remeasured at 
each balance sheet date with the offsetting adjustments recorded in change in fair value of warrant liabilities within the 
statements of operations.
We value our pre-funded warrants and common stock warrants classified as liabilities using the Black-Scholes option pricing 
model or other acceptable valuation models, including the Monte-Carlo simulation model.

 
71
Results of Operations
Comparison of years ended December 31, 2024 and 2023 
Revenue
Collaborative research and development and other revenue
We recognize revenue from collaborative research and development activities and service contracts. Collaborative research 
and development and other revenue primarily represents reimbursement of qualified expenses related to collaborative 
agreements with various third parties to research, develop and commercialize potential products using our drug delivery 
technologies, and revenue from the recognition of upfront fees and milestone payments in connection with our collaborative or 
license agreements.
We expect our collaborative research and development and other revenue to fluctuate in future periods pending our efforts 
to enter into potential new collaborations, our existing third-party collaborators’ commitment to and progress in the research and 
development programs, and any royalty or earn-out revenue recognized from collaborators or counterparties. 
The collaborative research and development and other revenue associated with our major collaborators or counterparties 
were $1.9 million and $2.3 million in 2024 and 2023, respectively. The collaborative research and development and other 
revenue included (a) amounts related to earn-out revenue from Indivior with respect to PERSERIS net sales, (b) feasibility 
programs and research and development activities funded by our collaborators or counterparties, (c) royalty revenue from Orient 
Pharma with respect to Methydur net sales and (d) royalty revenue from Innocoll with respect to POSIMIR net sales. The decrease 
in collaborative research and development and other revenue in 2024 compared with 2023 was primarily due to lower earn-out 
revenue from Indivior and lower revenue recognized from feasibility agreements with other companies.  
Product revenue, net 
As previously announced, in November 2024, we completed the sale of our ALZET product line to Lafayette Instruments Co. 
Revenue recognized from the ALZET product line, related cost of product revenues, associated selling, general and administrative 
expenses have been reclassified to discontinued operations for all periods presented.  
A portion of our revenues is derived from product sales, which include certain excipients used by pharmaceutical 
companies as raw materials in certain of their products, including Methydur and a marketed animal health product. Net product 
revenues were $135,000 and $313,000 in 2024 and 2023, respectively.
The decrease in product revenues in 2024 was primarily attributable to lower product revenue related to the sale of 
excipients that are included in Methydur compared to 2023. 
Operating Expenses
Cost of product revenues 
Cost of product revenues includes the cost of product revenue from certain excipients that are included in Methydur and a 
marketed animal health product. Cost of product revenues was $78,000 and $268,000 in 2024 and 2023, respectively. 
The decrease in cost of product revenues in 2024 was primarily attributable to lower cost of goods sold related to certain 
excipients that are included in Methydur compared with 2023. 
Stock-based compensation expense recognized related to cost of product revenues was zero in both 2024 and 2023.
As of December 31, 2024, we had no manufacturing employees compared with 9 as of December 31, 2023. 

 
72
Research and development    
Research and development expenses are primarily comprised of salaries, benefits, stock-based compensation and other 
compensation costs associated with research and development personnel, overhead and facility costs, preclinical and non-clinical 
development costs, clinical trial and related clinical manufacturing costs, contract services, and other outside costs. Research and 
development expenses were $10.4 million and $29.4 million in 2024 and 2023, respectively. Stock-based compensation expense 
recognized related to research and development personnel was $747,000 and $1.2 million in 2024 and 2023, respectively. 
Research and development expenses decreased by approximately $18.9 million in 2024 compared to 2023. The decrease 
in 2024 was primarily attributable to lower research and development costs associated with larsucosterol, the depot injectable 
programs and other research programs compared to 2023, as more fully discussed below. We expect our research and 
development expenses to decrease in 2025 compared to 2024.
Research and development expenses associated with our major development programs were as follows (in thousands): 
 
 
 
Year Ended December 31,
 
 
 
2024
  
2023
 
Larsucosterol
 $
10,214   $
26,246  
Depot injectable programs
  
2    
320  
Other
  
167    
2,785  
Total research and development expenses
 $
10,383   $
29,351  
 
Larsucosterol
Our research and development expenses for larsucosterol decreased to $10.2 million in 2024 from $26.2 million in 2023, 
primarily due to lower clinical trial related expenses as we completed the AHFIRM trial, and experienced lower contract 
manufacturing expenses and lower employee-related costs for this drug candidate compared with 2023.
Depot injectable programs
Our research and development expenses for depot injectable programs decreased to $2,000 in 2024 from $320,000 in 
2023 primarily due to lower employee-related costs and lower outside expenses for these programs.
Other DURECT research programs
Our research and development expenses for all other research programs decreased to $167,000 in 2024 from $2.8 million 
in 2023, primarily due to lower employee-related costs and lower outside expenses associated with these programs compared 
with 2023.
As of December 31, 2024 and 2023, we had 17 and 27 research and development employees, respectively. 
Our research and development programs may span as many as ten years or more, and estimation of completion dates or 
costs to complete are highly speculative and subjective due to numerous risks and uncertainties associated with developing 
pharmaceutical products, including significant and changing government regulation, uncertainties of future preclinical and clinical 
study results,  uncertainties with our collaborators’ commitment to and progress in the programs and uncertainties associated 
with process development and manufacturing as well as sales and marketing. In addition, with respect to our development 
programs subject to third-party collaborations, the timing and expenditures to complete the programs are subject to the control 
of our collaborators. Therefore, we cannot reasonably estimate the 

 
73
timing and costs of the efforts necessary to complete the research and development programs. For additional information 
regarding these risks and uncertainties, see “Risk Factors” above.
Selling, general and administrative 
Selling, general and administrative expenses are primarily comprised of salaries, benefits, stock-based compensation and 
other costs associated with finance, accounting, legal, business development, sales and marketing and other administrative 
personnel, overhead and facility costs, and other general and administrative costs. Selling, general and administrative expenses 
were $10.5 million and $12.7 million in 2024 and 2023, respectively. Selling, general and administrative expenses decreased by 
$2.2 million in 2024 compared to 2023, primarily due to lower employee expenses as well as lower consulting, patents and audit 
related expenses in 2024 compared with 2023. Stock-based compensation recognized related to selling, general and 
administrative personnel was $1.2 million and $1.4 million in 2024 and 2023, respectively. We expect our selling, general and 
administrative expenses to decrease in 2025 compared to 2024 due to lower audit expenses and lower employee expenses in 
2025.
As of December 31, 2024 and 2023, we had 14 and 23 selling, general and administrative personnel, respectively.
Other Income (Expense)
Interest and other income
Interest and other income were $821,000 and $2.1 million in both 2024 and 2023, respectively. Interest and other income 
in 2024 was lower than 2023 primarily as a result of lower cash and investments balances in 2024 compared with 2023. 
Change in fair value of warrant liabilities
The change in fair value of warrant liabilities was a loss of $323,000 and a gain of $13.6 million during the years ended 
December 31, 2024 and 2023, respectively. 
The change in fair value of warrant liabilities during the year ended December 31, 2024 was comprised of a non-cash loss 
of $323,000 for the common warrants issued in February 2023 and July 2023. 
The change in fair value of warrant liabilities during the year ended December 31, 2023 was comprised of a non-cash gain 
of $1.6 million for the pre-funded warrants issued in February 2023, a non-cash gain of $7.2 million for the common warrants 
issued in February 2023 and a non-cash gain of $4.9 million for the common warrants issued in July 2023. 
Issuance cost for warrants
The issuance cost for warrants was zero and $1.6 million during the years ended December 31, 2024 and 2023, 
respectively. The issuance cost for warrants during the year ended December 31, 2023 was comprised of $1.2 million for the 
warrants issued in February 2023 and $427,000 for the common warrants issued in July 2023. 
Loss on issuance of warrants
Loss on issuance of warrants was zero and $2.0 million during the years ended December 31, 2024 and 2023, respectively. 
The loss on issuance of warrants during the year ended December 31, 2023 was comprised of $2.0 million for the warrants issued 
in February 2023. 
Income Taxes
As of December 31, 2024, we had net operating loss ("NOL") carryforwards for federal income tax purposes of 
approximately $303.9 million, of which approximately $197.0 million will expire in the years 2025 through 2037, and 
approximately $106.9 million will not expire under current tax laws.  As of December 31, 2024, we had federal research and 
development tax credits of approximately $17.0 million, which expire at various dates beginning in 2025 through 2043, if not 
utilized. As of December 31, 2023, we had NOL carryforwards for state income tax purposes of approximately $270.4 million, 
which expire 

 
74
in the years 2025 through 2043, and state research and development tax credits of approximately $17.8 million, which do not 
expire under current tax laws. Utilization of the NOLs may be subject to a substantial annual limitation due to federal and state 
ownership change limitations. The annual limitation may result in the expiration of NOLs and credits before utilization.
As of December 31, 2024 and 2023, we had net deferred tax assets of $116.8 million and $124.5 million, respectively. 
Deferred tax assets reflect the net tax effects of NOLs and credit carryforwards and the temporary differences between the 
carrying amounts of assets and liabilities for financial reporting and the amounts used for income tax purposes. Realization of 
deferred tax assets is dependent upon future earnings, if any, the timing and amount of which are uncertain. Accordingly, the net 
deferred tax assets have been fully offset by a valuation allowance.
Because realization of such tax benefits is uncertain, we provided a 100% valuation allowance as of December 31, 2024 
and 2023. Utilization of the NOL and R&D credits carryforwards may be subject to a substantial annual limitation due to 
ownership change limitations that have occurred previously or that could occur in the future provided by Sections 382 and 383 of 
the Internal Revenue Code of 1986, as amended, as well as similar state and foreign provisions. These ownership changes may 
limit the amount of NOL and R&D credits carryforwards that can be utilized annually to offset future taxable income and tax, 
respectively. In general, an ownership change is defined as a greater than 50% change (by value) in its equity ownership over a 
three-year period, the corporation’s ability to use its pre-change NOLs and other pre-change tax attributes (such as research and 
development credit carryforwards) to offset its post-change taxable income or taxes may be limited. Since our formation, we 
have raised capital through the issuance of capital stock on several occasions which, combined with the purchasing shareholders’ 
subsequent disposition of those shares, may have resulted in a change of control, as defined by Section 382, or could result in a 
change of control in the future upon subsequent disposition. We issued $60.0 million of convertible notes in 2003 and 
subsequently all of these notes had been converted as of December 31, 2008 into approximately 1.9 million shares of our 
common stock. We also issued approximately 440,000 shares of our common stock to an institutional investor in connection with 
an equity financing in September 2009. In December 2012, November 2013, April 2016, June 2019 and February 2021, we 
completed underwritten public offerings in which we sold an aggregate of approximately 1.4 million, 820,000, 1.4 million, 2.9 
million and 2.0 million shares, respectively, of our common stock pursuant to effective registration statements. In 2016, 2017, 
2018, 2019, 2020, 2021, 2022 and 2023, we issued approximately 520,000, 890,000, 960,000, 230,000, 530,000, 95,000, 3,000 
and 1.6 million shares, respectively, of our common stock in the open market through Controlled Equity Offering sales 
agreements with Cantor Fitzgerald pursuant to effective registration statements. In 2023, we completed two registered direct 
offerings by selling an aggregate of approximately 4.7 million shares of common stock and accompanying warrants to purchase 
an aggregate of approximately 5.3 million shares of common stock. These transactions may also have resulted in a change of 
control as defined by Section 382 or could result in a change of control in the future upon the subsequent disposition of the 
shares.
We have not currently completed a study to assess whether a change in control has occurred or whether there have been 
multiple changes of control since our formation due to the significant complexity and cost associated with such a study and the 
fact that there could be additional changes in the future. If we have experienced a change of control at any time since our 
formation, utilization of our NOL or R&D credits carryforwards would be subject to an annual limitation under Sections 382 and 
383 which is determined by first multiplying the value of our stock at the time of the ownership change by the applicable long-
term tax-exempt rate, and then could be subject to additional adjustments, as required. Any limitation may result in expiration of 
a portion of our NOL or R&D credits carryforwards before utilization. Tax years 2000 to 2024 remain subject to future examination 
by the major tax jurisdictions in which we are subject to tax.

 
75
Liquidity and Capital Resources
Since our inception in 1998, we have generally had a history of operating losses and we expect to continue to incur 
significant operating losses for the foreseeable future and may never become profitable. These losses have resulted primarily 
from costs incurred to research and develop our product candidates and, to a lesser extent, from selling, general and 
administrative costs associated with our operations and product sales. We had cash, cash equivalents and investments totaling 
$12.0 million at December 31, 2024, which includes $150,000 of interest-bearing marketable securities classified as restricted 
investments on our balance sheet as of December 31, 2024 as compared to cash, cash equivalents and investments totaling 
$29.8 million at December 31, 2023. At December 31, 2024, we had an accumulated deficit of $597.3 million. 
Our cash and investments policy emphasizes liquidity and preservation of principal over other portfolio considerations. We 
select investments that maximize interest income to the extent possible given these two constraints. We satisfy liquidity 
requirements by investing excess cash in securities with different maturities to match projected cash needs and limit 
concentration of credit risk by diversifying our investments among a variety of high credit-quality issuers. 
As discussed below, we do not have sufficient cash resources to fund our planned operations, existing debt and contractual 
commitments and planned capital expenditures. Our auditors have issued a going concern opinion as of, and for the year ended, 
December 31, 2024. Unless we secure funding from collaborations, additional equity or debt financing, of which there can be no 
assurance, we may not be able to continue operations.
Cash Flows
We used $19.1 million and $34.4 million of cash in operating activities in the years ended December 31, 2024 and 2023, 
respectively. The decrease in cash used in operating activities in 2024 was primarily due to lower costs incurred to research and 
develop our product candidates and, to a lesser extent, from selling, general and administrative costs associated with our 
operations and product sales, partially offset by lower payments from our collaborators compared with 2023.  The cash used in 
operating activities was primarily to fund operations as well as our working capital requirements, partially offset by the changes 
in accounts receivable, accounts payable and accrued liabilities. 
We received $18.0 million cash from investing activities in the year ended December 31, 2024 and used $1.2 million of 
cash in investing activities in the year ended December 31, 2023, respectively. The increase in cash generated from investing 
activities in 2024 was primarily due to net proceeds from the sale of the ALZET product line and a decrease in purchases of 
available-for-sale securities, partially offset by a decrease in proceeds from maturities of available-for-sale securities in 2024 
compared with 2023. 
We used $16.3 million cash in financing activities in the year ended December 31, 2024 and generated $20.5 million of 
cash from financing activities in the year ended December 31, 2023, respectively.  The increase in cash used in financing 
activities in the year ended December 31, 2024 was primarily used to make higher principal payments and a final payment on 
the term loan with Oxford Finance LLC ("Oxford Finance") as we fully paid off the term loan in 2024. Cash provided by financing 
activities in 2023 was primarily due to cash proceeds received from the registered direct offerings that were completed in 
February 2023 and in July 2023 and from the sale of our common stock in the open market pursuant to a sales agreement dated 
July 30, 2021 with Cantor Fitzgerald & Co. (the “2021 Sales Agreement”), partially offset by principal payments on the term loan 
with Oxford Finance. 

 
76
Shelf Registration Statement
In July 2021, we filed a shelf registration statement on Form S-3 with the SEC (the “2021 Registration Statement”) (File No. 
333-258333), which upon being declared effective in August 2021, allowed us to offer up to $250.0 million of securities from time 
to time in one or more public offerings, inclusive of up to $75.0 million of shares of our common stock which we could sell, subject 
to certain limitations, pursuant to the 2021 Sales Agreement.  The 2021 Registration Statement expired on August 16, 2024. 
In 2023, we raised net proceeds (net of commissions) of approximately $1.6 million from the sale of our common stock in 
the open market under the 2021 Sales Agreement. In 2024, we raised net proceeds (net of commissions) of approximately 
$648,000 from the sale of our common stock in the open market under the 2021 Sales Agreement.
On August 14, 2024, we filed a shelf registration statement on Form S-3 with the SEC (the “2024 Registration Statement”) 
(File No. 333-281550), which upon being declared effective on August 23, 2024, allowed us to offer up to $250.0 million of 
securities from time to time in one or more public offerings.  Due to the SEC’s “baby shelf” rules, which prohibit companies with a 
public float of less than $75 million from issuing securities under a shelf registration statement in excess of one-third of such 
company’s public float in a 12-month period, we are currently only able to issue a limited number of shares under our 2024 
Registration Statement, which aggregate to no more than one-third of our public float.
As of March 25, 2025, we had up to $250.0 million of our securities available for sale under the 2024 Registration 
Statement. However, due to the SEC’s “baby shelf” rules discussed above, only up to approximately $8.7 million of our securities 
are currently available for sale under the 2024 Registration Statement.
Any material sales in the public market of our common stock, under the 2024 Registration Statement, could adversely 
affect prevailing market prices for our common stock.  
Term Loan
In July 2016, we entered into a Loan and Security Agreement (as amended, the "Loan Agreement") with Oxford Finance. In 
the event of default by us under the 2016 Loan Agreement, the lender would have been entitled to exercise its remedies 
thereunder, including the right to accelerate the debt, upon which we may have been required to repay all amounts then 
outstanding under the Loan Agreement. As a result, the term loan was reclassified to current liabilities from non-current liabilities 
on our balance sheet as of December 31, 2023 due to recurring losses, liquidity concerns and a subjective acceleration clause in 
the Loan Agreement. In November 2024, we completed the sale of our ALZET product line to Lafayette Instrument Co. ("LIC"), a 
portfolio company of Branford Castle Partners II, L.P., a North-American focused private equity firm. Under the terms of the 
agreement, LIC paid DURECT $17.5 million in exchange for certain assets and liabilities associated with the ALZET product line. 
Simultaneous with this transaction, we paid off all remaining obligations under the term loan agreement with Oxford Finance.
Going Concern
As of December 31, 2024, we had approximately $12.0 million in cash, cash equivalents and investments compared to 
cash, cash equivalents, and investments of $29.8 million at December 31, 2023. In 2024, we completed the sale of our ALZET 
product line,  paid off all remaining obligations under the term loan agreement with Oxford Finance and raised net proceeds (net 
of commissions) of approximately $648,000 from the sale of our common stock in the open market under the 2021 Sales 
Agreement.

 
77
In 2023, we received approximately $22.7 million in net proceeds (net of placement agent fees and other offering 
expenses) from two registered direct offerings and we raised net proceeds (net of commissions) of approximately $1.6 million 
from the sale of our common stock in the open market under the 2021 Sales Agreement. 
In accordance with ASU No. 2014-15 Presentation of Financial Statements – Going Concern (subtopic 205-40), our 
management evaluates whether there are conditions or events, considered in the aggregate, that raise substantial doubt about 
our ability to continue as a going concern within one year after the date that the financial statements are issued.  Based on our 
evaluation, substantial doubt exists regarding our ability to continue as a going concern for a period of one year from the 
issuance of our financial statements.
Cash used in our operating activities is heavily influenced by the timing and structure of new corporate collaborations. 
While one feature of our business strategy is seeking new corporate collaborations, assuming no new collaborations and no 
milestone payments, we anticipate that cash used in operating activities will decrease in the near term. In aggregate, we are 
required to make future payments pursuant to our existing contractual obligations as follows (in thousands):
 
Contractual Obligations
 
2025
  
2026 and 
thereafter
  
Total
 
Operating lease obligations
 $
1,150   $
1,351   $
2,501  
Total contractual cash obligations
 $
1,150   $
1,351   $
2,501  
 
Presently, we do not have sufficient cash resources to fund our planned operations, existing debt and contractual 
commitments and planned capital expenditures through at least the next 12 months from issuance of these financial statements. 
We may consume available resources more rapidly than currently anticipated, resulting in the need for additional funding. We 
expect to incur continuing losses and negative cash flows from operations for the foreseeable future.
We may decide to raise additional capital through a variety of sources in the short-term and in the long-term, including but 
not limited to:
•
the public equity markets;
•
private equity financings;
•
collaborative arrangements; 
•
asset sales; and/or
•
public or private debt.
There can be no assurance that we will enter into additional collaborative agreements or maintain existing collaborative 
agreements, will earn collaborative revenues or that additional capital will be available on favorable terms to the Company, if at 
all. If adequate funds are not available, we may be required to significantly reduce or re-focus our operations or to obtain funds 
through arrangements that may require us to relinquish rights to certain of our products, technologies or potential markets, 
either of which could have a material adverse effect on our business, financial condition and results of operations. To the extent 
that additional capital is raised through the sale of equity or convertible debt securities, the issuance of such securities would 
result in ownership dilution to our existing stockholders (assuming convertible debt securities were converted into shares). These 
factors raise substantial doubt regarding our ability to continue as a going concern. Our inability to obtain required funding in the 
near future or our inability to obtain funding on favorable terms will have a material adverse effect on our operations and 
strategic development plan for future growth. If we cannot successfully raise additional capital and 

 
78
implement our strategic development plan, our liquidity, financial condition and business prospects will be materially and 
adversely affected, and we may have to cease operations.
As a result, our independent registered public accounting firm included an explanatory paragraph    regarding our ability to 
continue as a going concern in its report on our financial statements as of, and for the year ended, December 31, 2024.
Recent Accounting Pronouncements
See Note 1 “Summary of Significant Accounting Policies” – “Recent Accounting Pronouncements”, to our financial 
statements for a full description of recent accounting pronouncements, including the expected dates of adoption and estimated 
effects on financial condition and results of operations, which is incorporated herein by reference.
Item 7A. Quantitative and Qualitative Disclosures About Market Risk. 
We are a smaller reporting company as defined in Rule 12b-2 of the Exchange Act and are not required to provide the 
information otherwise required under this Item 7A.
 
 

 
79
Item 8. Financial Statements and Supplementary Data.
 
DURECT CORPORATION
INDEX TO FINANCIAL STATEMENTS
 
 
 
Page No.
Report of Independent Registered Public Accounting Firm (PCAOB ID: 100)
 
80
 
 
 
Report of Ernst & Young LLP, Independent Registered Public Accounting Firm (PCAOB ID: 42) 
 
83
 
 
 
Balance Sheets
 
84
 
 
 
Statements of Operations and Comprehensive Loss
 
85
 
 
 
Statements of Stockholders’ Equity
 
86
 
 
 
Statements of Cash Flows
 
87
 
 
 
Notes to Financial Statements
 
88
 

 
80
Report of Independent Registered Public Accounting Firm 
 
To the Board of Directors and Stockholders of
DURECT Corporation
 
Opinion on the Financial Statements
We have audited the accompanying balance sheet of DURECT Corporation (the “Company”) as of December 31, 2024, the related statements of 
operations and comprehensive loss, stockholders’ equity, and cash flows for the year then ended, and the related notes (collectively referred to as 
the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of 
December 31, 2024, and the results of its operations and its cash flows for the year then ended in conformity with accounting principles generally 
accepted in the United States of America. 
 
Substantial Doubt About the Company’s Ability to Continue as a Going Concern
The accompanying financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 1 to 
the financial statements, the Company has suffered recurring losses from operations and has an accumulated deficit that raise substantial doubt 
about its ability to continue as a going concern. Management's plans in regard to these matters are also described in Note 1. The financial statements 
do not include any adjustments that might result from the outcome of this uncertainty.
 
Basis for Opinion
These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s 
financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United 
States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the 
applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
 
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain 
reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not 
required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit, we are required to 
obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the 
Company’s internal control over financial reporting. Accordingly, we express no such opinion.
 
Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and 
performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and 
disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by 
management, as well as evaluating the overall presentation of the financial statements. We believe that our audit provides a reasonable basis for our 
opinion.
 
Critical Audit Matters
The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated 
or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements 
and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way 
our opinion 

 
81
on the financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the 
critical audit matters or on the accounts or disclosures to which they relate.
 
Valuation of the February 2023 Common Warrants
Critical Audit Matter Description
As described in Notes 3 and 9 of the financial statements, in February 2023, the Company issued common warrants to purchase an aggregate of 
2,000,000 shares of Common Stock, in a registered direct offering (the "February Offering"). At the date of issuance and as of December 31, 2024, 
the Company accounted for the common warrants as current liabilities on the balance sheet and are adjusted to estimated fair value at each 
reporting period. The common warrants are valued using a Monte-Carlo valuation model due to the presence of an alternative cashless settlement 
feature in the financing agreement that provides the warrant holders with an alternative settlement feature to receive a fixed percentage of the 
shares underlying the warrants for no consideration. Because this feature allows for the warrant holders to use an alternative mechanism to exercise 
their warrants in a manner that would yield different values, a Monte-Carlo valuation model was determined to be appropriate.
The valuation of the common warrants related to the February Offering requires a high degree of judgment and is subject to change based on various 
quantitative and qualitative factors. A high degree of auditor judgment and an increased extent of effort were required when performing audit 
procedures to evaluate the reasonableness of management’s estimates and assumptions related to the valuation of the transaction due to the use of 
complex valuation models to estimate the value of the common warrants, which included the need to involve our valuation specialists. Therefore, we 
identified the Company’s valuation of the common warrants related to the February Offering as a critical audit matter.
How We Addressed the Matter in Our Audit
We obtained an understanding of and evaluated the design of controls relating to the Company’s valuation of the common warrants related to the 
February Offering. We evaluated the significant accounting policies relating to the Company’s analyses, as well as management’s application of the 
policies, for appropriateness and reasonableness.
To test the accounting for the common warrants in the February Offering, we performed audit procedures that included, among other things, 
obtaining an understanding of the Company’s process to account for the issuance of the common warrants, inspecting the warrant agreements, 
evaluating the reasonableness of management’s assumptions used as inputs within the valuation model and testing the accuracy of the underlying 
data used in the valuation models by tracing the key inputs to relevant terms contained in the warrant agreements. We also involved a valuation 
specialist to assist in evaluating the valuation methodologies and significant assumptions used in the valuation model, as well as testing the 
mathematical accuracy of the calculations.
Accounting and disclosure of Business Disposal and Discontinued Operations
Critical Audit Matter Description
As described in Note 11 of the financial statements, on November 22, 2024 (the “Closing Date”), the Company entered into an Asset Purchase 
Agreement (the “APA”) with Alzet, LLC, a subsidiary of Lafayette Instrument Co. (the “Purchaser”). Under the terms of the APA, the Company agreed 
to sell to the Purchaser substantially all of the assets, and certain specified liabilities, related to the ALZET product line (the “Sale”). Pursuant to the 
terms of the APA, the Purchaser paid the Company $17,500,000 subject to certain adjustments, including for net working capital, and agreed to 
assume certain liabilities with respect to the transferred assets. 
The accounting and disclosure of business disposals and discontinued operations is especially challenging and requires extensive effort to audit the 
subjective and complex judgments associated with those matters, including determination of whether the disposal was an asset or a business, 
determination of the allocation of goodwill that was disposed of in connection with the Sale and whether the disposal would be disclosed as a 
discontinued operation. 

 
82
How We Addressed the Matter in Our Audit
We obtained an understanding of and evaluated the design of controls relating to the Company's accounting for significant unusual transactions and 
the presentation of discontinued operations. We assessed and evaluated management’s judgments in determining whether the disposed assets met 
the definition of a business or asset disposal. We assessed and evaluated management’s judgments in determining whether the Sale met the 
discontinued operations classification criteria and tested the gain recognized on the Sale through procedures performed, including, but not limited to, 
inspection of relevant supporting documentation and assessment of the accounting implications of the terms therein, tested the goodwill amount 
allocated to the Sale, tested the mathematical accuracy of the calculations, and inquired of management regarding specific assumptions made. We 
tested the recognition and classifications of the Company’s segregation of assets, liabilities and the results of operations that are classified as 
discontinued operations by inspecting the Company’s accounting data and related adjustments. We tested the accuracy and completeness of the 
Company’s disclosures as they relate to discontinued operations.
 
/s/ WithumSmith+Brown, PC
 
We have served as the Company’s auditor since 2024.
 
San Francisco, California
March 27, 2025
PCAOB ID No. 100
 
 

 
83
Report of Ernst & Young LLP, Independent Registered Public Accounting Firm
To the Stockholders and the Board of Directors of DURECT Corporation 
Opinion on the Financial Statements 
We have audited the accompanying balance sheet of DURECT Corporation (the Company) as of December 31, 2023, the related statements of operations and 
comprehensive loss, stockholders’ equity, and cash flows for the year ended December 31, 2023, and the related notes (collectively referred to as the “financial 
statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2023, and the 
results of its operations and its cash flows for the year ended December 31, 2023, in conformity with U.S. generally accepted accounting principles.  
The Company’s Ability to Continue as a Going Concern 
The accompanying financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 1 to the financial 
statements, the Company has an accumulated deficit as well as negative cash flows from operating activities and has stated that substantial doubt exists about 
the Company’s ability to continue as a going concern. Management's evaluation of the events and conditions and management’s plans regarding these matters 
are also described in Note 1. The financial statements do not include any adjustments that might result from the outcome of this uncertainty.
Basis for Opinion
These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial 
statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are 
required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the 
Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable 
assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor 
were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit we are required to obtain an understanding of internal 
control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. 
Accordingly, we express no such opinion.
Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing 
procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial 
statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall 
presentation of the financial statements. We believe that our audit provides a reasonable basis for our opinion.
 
/s/ Ernst & Young LLP
 
We served as the Company’s auditor from 1998 to 2024. 
 
San Francisco, California  
March 28, 2024  
except for Note 11, as to which the date is  
March 27, 2025 
 

 
84
DURECT CORPORATION
BALANCE SHEETS
(in thousands, except per share amounts)
 
 
 
December 31,
 
 
 
2024
  
2023
 
A S S E T S
 
   
  
Current assets:
 
   
  
Cash and cash equivalents
 
$
11,011   
$
28,400  
Short-term investments
 
 
792   
 
1,280  
Accounts receivable (net of allowances of $0 at December 31, 2024
   and $20 at December 31, 2023)
 
 
453   
 
618  
Inventories, net
 
 
106   
 
132  
Prepaid expenses and other current assets
 
 
813   
 
1,465  
Discontinued operations - current assets
 
 
—   
 
2,777  
Total current assets
 
 
13,175   
 
34,672  
Property and equipment, net
 
 
41   
 
88  
Operating lease right-of-use assets
 
 
2,135   
 
3,079  
Goodwill
 
 
2,725   
 
6,169  
Long-term restricted investments
 
 
150   
 
150  
Other long-term assets
 
 
123   
 
123  
Discontinued operations - non-current assets
 
 
—   
 
908  
Total assets
 
$
18,349   
$
45,189  
L I A B I L I T I E S  A N D  S T O C K H O L D E R S’  E Q U I T Y
 
   
  
Current liabilities:
 
   
  
Accounts payable
 
$
309   
$
1,723  
Accrued liabilities
 
 
4,771   
 
5,810  
Term loan, current portion, net
 
 
—   
 
16,663  
Operating lease liabilities, current portion
 
 
1,082   
 
1,171  
Warrant liabilities
 
 
1,548   
 
1,224  
Discontinued operations - current liabilities
 
 
—   
 
420  
Total current liabilities
 
 
7,710   
 
27,011  
Operating lease liabilities, non-current portion
 
 
1,124   
 
1,967  
Other long-term liabilities
 
 
384   
 
594  
Discontinued operations - non-current liabilities
 
 
—   
 
834  
Commitments and contingencies
 
   
  
Stockholders’ equity:
 
   
  
Preferred stock, $0.0001 par value: 10,000 shares authorized; none issued
   and outstanding
 
 
—   
 
—  
Common stock, $0.0001 par value: 350,000 and 150,000 shares authorized at December 31, 
2024 and 2023, respectively; 31,042 and 30,334 shares issued and outstanding at December 31, 
2024 and 2023, respectively
 
 
23   
 
23  
Additional paid-in capital
 
 
606,439   
 
603,780  
Accumulated other comprehensive loss
 
 
(1 )  
 
(14 )
Accumulated deficit
 
 
(597,330 )  
 
(589,006 )
Stockholders’ equity
 
 
9,131   
 
14,783  
Total liabilities and stockholders’ equity
 
$
18,349   
$
45,189  
 
The accompanying notes are an integral part of these financial statements.

 
85
DURECT CORPORATION
STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
(in thousands, except per share amounts)
 
 
 
Year ended December 31,
 
 
 
2024
  
2023
 
Collaborative research and development and other revenue
 
$
1,896   
$
2,277  
Product revenue, net
 
 
135   
 
313  
Total revenues
 
 
2,031   
 
2,590  
Operating expenses:
 
   
  
Cost of product revenues
 
 
78   
 
268  
Research and development
 
 
10,383   
 
29,351  
Selling, general and administrative
 
 
10,482   
 
12,653  
Total operating expenses
 
 
20,943   
 
42,272  
Loss from operations
 
 
(18,912 )  
 
(39,682 )
Other income (expense):
 
   
  
Interest and other income
 
 
821   
 
2,129  
Change in fair value of warrant liabilities
 
 
(323 )  
 
13,583  
Issuance cost for warrants
 
 
—   
 
(1,627 )
Loss on issuance of warrants
 
 
—   
 
(2,033 )
Other income, net
 
 
498   
 
12,052  
Loss from continuing operations
 
 
(18,414 )  
 
(27,630 )
Income from discontinued operations (Note 11)
 
 
10,090   
 
6  
Net loss
 
 
(8,324 )  
 
(27,624 )
Net change in unrealized loss on available-for-sale securities, net of reclassification adjustments 
and taxes
 
 
13   
 
(1 )
Total comprehensive loss
 
$
(8,311 )  
$
(27,625 )
 
 
   
  
Net loss per share, basic
 
   
  
Loss from continuing operations
 
$
(0.60 )  
$
(1.05 )
Income from discontinued operations
 
$
0.33   
$
—  
Net loss per common share
 
$
(0.27 )  
$
(1.05 )
 
 
   
  
Net loss per share, diluted
 
   
  
Loss from continuing operations
 
$
(0.60 )  
$
(1.20 )
Income from discontinued operations
 
$
0.33   
$
—  
Net loss per common share
 
$
(0.27 )  
$
(1.20 )
 
 
   
  
Weighted-average shares used in computing net loss per share
 
   
  
Basic
 
 
30,940   
 
26,256  
Diluted
 
 
30,940   
 
26,520  
 
The accompanying notes are an integral part of these financial statements.

 
86
DURECT CORPORATION
STATEMENTS OF STOCKHOLDERS’ EQUITY
(in thousands)
 
 
 
Common Stock
  
Additional
Paid-In
  
Accumulated
Other
Comprehensive
  
Accumulated
  
Total
Stockholders’
 
 
 
Shares
  
Amount
  
Capital
  
Income (loss)
  
Deficit
  
Equity
 
Balance at December 31, 2022
  
22,785   $
23   $
586,357   $
(13 )  $
(561,382 )  $
24,985  
Issuance of common stock upon exercise of 
stock options and purchases of ESPP shares
  
11    
—    
34    
—    
—    
34  
Issuance of common stock in the February 
2023 registered direct offering
  
1,700    
—    
—    
—    
—    
—  
Issuance of common stock in the July 2023 
registered direct offering, net of issuance costs 
of $673
  
2,991    
—    
8,540    
—    
—    
8,540  
Issuance of common stock pursuant to the 
2021 Sales Agreement, net of issuance costs of 
$32
  
1,623    
—    
1,564    
—    
—    
1,564  
Issuance of common stock upon warrant 
exercises
  
1,224    
—    
3,013    
—    
—    
3,013  
Stock-based compensation expense from stock 
options and ESPP shares
  
—    
—    
4,272    
—    
—    
4,272  
Net loss
  
—    
—    
—    
—    
(27,624 )   
(27,624 )
Change in unrealized loss on available-for-sale 
securities, net of tax
  
—    
—    
—    
(1 )   
—    
(1 )
Balance at December 31, 2023
  
30,334   $
23   $
603,780  
 $
(14 )
 $
(589,006 )
 $
14,783  
Issuance of common stock pursuant to the 
2021 Sales Agreement, net of issuance costs of 
$13
  
702    
—    
648    
—    
—  
  
648  
Issuance of common stock upon exercise of 
stock options and from the ESPP
  
6    
—    
5    
—    
—    
5  
Stock-based compensation expense from stock 
options and ESPP shares
 
   
    
2,006  
 
   
    
2,006  
Net loss
 
   
   
   
   $
(8,324 )
  
(8,324 )
Change in unrealized gain on available-for-sale 
securities, net of tax
 
   
   
   $
13  
 
    
13  
Balance at December 31, 2024
  
31,042   $
23   $
606,439   $
(1 )  $
(597,330 )  $
9,131  
 
The accompanying notes are an integral part of these financial statements.

 
87
DURECT CORPORATION
STATEMENTS OF CASH FLOWS
(in thousands)
 
 
 
Year ended December 31,
 
 
 
2024
  
2023
 
Cash flows from operating activities
 
   
  
Net loss
 
$
(8,324 )
 $
(27,624 )
Adjustments to reconcile net loss to net cash used in operating
   activities:
 
   
  
Gain on sale of ALZET product line
 
 
(11,539 )  
 
—  
Loss on extinguishment of debt
 
 
130   
 
—  
Depreciation and accretion
 
 
84   
 
31  
Stock-based compensation
 
 
1,995   
 
2,538  
Change in fair value of warrant liabilities
 
 
323   
 
(13,583 )
Loss on issuance of warrants
 
 
—   
 
2,033  
Issuance cost for warrants
 
 
—   
 
427  
Other
 
 
169   
 
422  
Changes in assets and liabilities:
 
   
  
Accounts receivable
 
 
371   
 
2,162  
Inventories
 
 
(214 )  
 
(107 )
Prepaid expenses and other assets
 
 
630   
 
796  
Accounts payable
 
 
(1,380 )  
 
(1,329 )
Accrued liabilities
 
 
(1,331 )  
 
(180 )
Total adjustments
 
 
(10,762 )  
 
(6,790 )
Net cash used in operating activities
 
 
(19,086 )  
 
(34,414 )
Cash flows from investing activities
 
   
  
Purchases of property and equipment
 
 
—   
 
(52 )
Proceeds from sales of fixed assets
 
 
—   
 
84  
Purchases of available-for-sale securities
 
 
(2,956 )  
 
(6,198 )
Proceeds from maturities of available-for-sale securities
 
 
3,500   
 
5,000  
Proceeds from sale of ALZET product line
 
 
17,500   
 
—  
Net cash provided by (used in) investing activities
 
 
18,044   
 
(1,166 )
Cash flows from financing activities
 
   
  
Payments on equipment financing obligations
 
 
—   
 
(1 )
Payments on term loan principal
 
 
(15,000 )  
 
(5,000 )
Payment of final payment on term loan
 
 
(2,000 )  
 
—  
Net proceeds from issuances of common stock pursuant to the 2021 Sales Agreement
 
 
648   
 
1,564  
Net proceeds from issuances of common stock upon exercise of
   stock options, and purchases of ESPP shares
 
 
5   
 
34  
Proceeds from issuances of warrants and common stock in the February 2023 registered direct offering
 
 
—   
 
10,000  
Net proceeds from issuances of warrants and common stock in the July 2023 registered direct offering
 
 
—   
 
13,900  
Net cash (used in) provided by financing activities
 
 
(16,347 )  
 
20,497  
Net decrease in cash and cash equivalents
 
 
(17,389 )  
 
(15,083 )
Cash, cash equivalents, and restricted cash, beginning of the
   period (1)
 
 
28,550   
 
43,633  
Cash, cash equivalents, and restricted cash, end of the period (1)
 
$
11,161   
$
28,550  
Supplemental disclosure of cash flow information
 
   
  
Cash paid for interest
 
$
1,407   
$
2,332  
 
(1)
Includes restricted cash of $150,000 (presented as long-term restricted investments) on the balance sheets at each of 
December 31, 2024 and 2023.
The accompanying notes are an integral part of these financial statements.

 
88
DURECT CORPORATION
NOTES TO FINANCIAL STATEMENTS
 
1.
Summary of Significant Accounting Policies
Nature of Operations
DURECT Corporation (the “Company”) was incorporated in the state of Delaware on February 6, 1998. The Company is a 
biopharmaceutical company committed to transforming the treatment of acute organ injury and chronic liver diseases by 
advancing novel and potentially lifesaving therapies based on its endogenous epigenetic regulator program. Larsucosterol, the 
Company's lead drug candidate, binds to and inhibits the activity of DNA methyltransferases ("DNMTs"), epigenetic enzymes 
which are elevated and associated with hypermethylation found in alcohol-associated hepatitis ("AH") patients. Larsucosterol is in 
clinical development for the potential treatment of AH, for which FDA has granted a Fast Track Designation and Breakthrough 
Therapy Designation; metabolic dysfunction-associated steatohepatitis (“MASH”), also known as non-alcoholic steatohepatitis or 
NASH is also being explored. The Company also manufactures and sells certain excipients for certain clients for use as raw 
materials in their products. 
Basis of Presentation and Use of Estimates
The Company’s financial statements have been prepared in accordance with U.S. generally accepted accounting principles 
(U.S. GAAP). The preparation of the accompanying financial statements conforms to U.S. GAAP, which requires management to 
make judgments, estimates and assumptions that affect the reported amounts of assets, liabilities, equity, revenues and 
expenses, and related disclosures. On an ongoing basis, management evaluates its estimates including, but not limited to, those 
related to revenue recognition, the period of performance, identification of performance obligations and evaluation of milestones 
with respect to our collaborations, the amounts of revenues, recoverability of inventory, certain accrued liabilities including 
accrued clinical costs, asset retirement obligations, and valuation of warrant liabilities. The Company bases its estimates on 
historical experience and on various other market-specific and other relevant assumptions that the Company believes to be 
reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of 
assets and liabilities that are not readily apparent from other sources. Actual results could differ materially from those estimates.
Liquidity and Need to Raise Additional Capital
As of December 31, 2024, the Company had an accumulated deficit of $597.3 million as well as negative cash flows from 
operating activities. Presently, the Company does not have sufficient cash resources to meet its plans for the next twelve months 
following the issuance of these financial statements. The Company will continue to require substantial funds to continue research 
and development, including clinical trials of its product candidates. These factors raise substantial doubt regarding the 
Company’s ability to continue as a going concern for a period of one year from the issuance of these financial statements. 
Management’s plans in order to meet its operating cash flow requirements include seeking additional collaborative agreements 
for certain of its programs as well as financing activities such as public offerings and private placements of its common stock, 
preferred stock offerings, issuances of debt and convertible debt instruments.
There are no assurances that such additional funding will be obtained and that the Company will succeed in its future 
operations. If the Company cannot successfully raise additional capital and implement its strategic development plan, its 
liquidity, financial condition and business prospects will be materially and adversely affected, and the Company may have to 
cease operations. As further described in Note 8, the Company classified the remaining balance of its term loan as a current 
liability on the Company’s balance sheet as of December 31, 2023 due to the timing of repayment obligations and due to 
recurring losses, liquidity concerns and a subjective acceleration clause in the Company’s Loan Agreement. 

 
89
In 2024, the Company completed the sale of its ALZET product line to Lafayette Instrument Co. ("LIC"), a portfolio company 
of Branford Castle Partners II, L.P., a North-American focused private equity firm. Under the terms of the agreement, LIC paid the 
Company $17.5 million in exchange for certain assets and liabilities associated with the ALZET product line. Simultaneous with 
this transaction, the Company paid off all remaining obligations under the term loan agreement with Oxford Finance LLC.
These financial statements have been prepared on a going concern basis and do not include any adjustments to the 
amounts and classification of assets and liabilities that may be necessary in the event the Company can no longer continue as a 
going concern.
 
Cash, Cash Equivalents and Investments
The Company considers all highly liquid investments with maturities of 90 days or less from the date of purchase to be cash 
equivalents. Investments with original maturities of greater than 90 days from the date of purchase but less than one year from 
the balance sheet date are classified as short-term investments, while investments with maturities in one year or beyond one 
year from the balance sheet date are classified as long-term investments. Management determines the appropriate classification 
of its cash equivalents and investment securities at the time of purchase and re-evaluates such determination as of each balance 
sheet date. Management has classified the Company’s cash equivalents and investments as available-for-sale securities in the 
accompanying financial statements. Available-for-sale securities are carried at fair value, with unrealized gains and losses 
reported as a component of accumulated other comprehensive loss. Realized gains and losses are included in interest income. 
There were no material realized gains or losses in the periods presented. The cost of securities sold is based on the specific 
identification method.
The Company invests in debt instruments of government agencies, corporations, and money market funds with high credit 
ratings. The Company has established guidelines regarding diversification of its investments and their maturities with the 
objectives of maintaining safety and liquidity, while maximizing yield.
Concentrations of Credit Risk
Financial instruments that potentially subject the Company to credit risk consist principally of interest-bearing investments 
and trade receivables. The Company maintains cash, cash equivalents and investments with various major financial institutions. 
The Company performs periodic evaluations of the relative credit standing of these financial institutions. In addition, the 
Company performs periodic evaluations of the relative credit quality of its investments.
The Company’s trade receivables derive largely from pharmaceutical clients. The Company provides credit in the normal 
course of business to its customers and collateral for these receivables is generally not required. The Company monitors the 
creditworthiness of its customers to which it grants credit terms in the normal course of business. The Company maintains 
reserves for estimated credit losses and, to date, such losses have been immaterial in all periods presented.
Customer and Product Line Concentrations (excluding the ALZET product line)
Indivior accounted for 78% and 65% of the Company's total revenue for 2024 and 2023, respectively.      

 
90
Total revenue by geographic region for the years 2024 and 2023 are as follows (in thousands):
 
 
 
Year ended December 31,
 
 
2024
  
2023
  
Europe
 
$
1,592   
$
1,689   
United States
 
 
189   
 
514   
Others
 
 
250   
 
387   
Total
 
$
2,031   
$
2,590   
 
Revenue by geography is determined by the location of the customer.
 
Inventories, net
Inventories are stated at the lower of cost or net realizable value, with cost determined on a first-in, first-out basis. The 
Company may be required to expense previously capitalized inventory costs upon a change in management’s judgment due to 
new information that suggests that the inventory will not be saleable. 
 
The Company’s inventories consisted of the following (in thousands):
 
 
 
December 31,
 
 
 
2024
  
2023
 
Raw materials
 
$
10   
$
10  
Finished goods
 
 
96   
 
122  
Total inventories
 
$
106   
$
132  
 
Property and Equipment
Property and equipment are stated at cost less accumulated depreciation, which is computed using the straight-line 
method over the estimated useful lives of the assets, which range from three to five years. Leasehold improvements are 
amortized using the straight-line method over the estimated useful lives of the assets, or the terms of the related leases, 
whichever are shorter.
Goodwill
Goodwill is periodically assessed and evaluated for impairment. The Company operates in one operating segment and also 
has only one reporting unit, which is the research, development and manufacturing of pharmaceutical products. The Company 
assesses the impairment of goodwill at least annually and whenever events or changes in circumstances indicate that the 
carrying value may not be recoverable. To date, the Company has not recorded any impairment charge related to goodwill. 
Impairment of Long-Lived Assets
The Company reviews long-lived assets, including property and equipment, intangible assets, and other long-term assets, 
for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not 
be fully recoverable.
If an indicator of impairment is present for any long-lived asset, the Company is required to determine whether the 
undiscounted future cash flows from the long-lived asset is less than its carrying amount. If so, impairment, if any, is calculated 
as the amount by which the long-lived asset's carrying value exceeds its estimated fair value. Through December 31, 2024, there 
have been no material impairment losses.
Leases
ASC 842 requires the Company to recognize an operating lease right-of-use asset and corresponding operating lease 
liability for the Company’s leased properties. The Company’s operating lease right-of-use 

 
91
assets and liabilities are recognized under ASC 842 based on the present value of lease payments over the remaining lease term 
at the lease commencement date. In determining the net present value of lease payments, we estimate the incremental 
borrowing rate based on the information available, including remaining lease term. As of December 31, 2024, the weighted-
average remaining lease term was 2.14 years for the Company’s leased properties.
Stock-Based Compensation
The Company accounts for share-based payments using a fair-value based method for costs related to all share-based 
payments, including stock options and stock issued under the Company’s employee stock purchase plan (ESPP). The Company 
estimates the fair value of share-based payment awards on the date of grant using an option-pricing model. The Company 
recognizes compensation costs on a straight-line basis over the requisite service period and accounts for forfeitures as they 
occur. See Note 9 for further information regarding stock-based compensation.
Revenue Recognition 
Product Revenue, Net
The Company manufactures and sells certain excipients used by pharmaceutical companies as raw materials in certain of 
their products, including Methydur and a marketed animal health product. Prior to the sale of the ALZET product line in November 
2024, the Company also manufactured and sold ALZET miniature osmotic pumps used in laboratory research.
Revenues from product sales are recognized when the customer obtains control of the Company’s product, which occurs at 
a point in time, typically upon shipment to the customer. The Company expenses incremental costs of obtaining a contract as 
and when incurred if the expected amortization period of the asset that the Company would have recognized is one year or less.
Trade Discounts and Allowances: The Company provides certain customers with discounts that are explicitly stated in the 
Company’s contracts and are recorded as a reduction of revenue in the period the related product revenue is recognized.
Product Returns: The Company generally offers customers a limited right of return for products that have been purchased. 
The Company estimates the amount of its product sales that are probable of being returned by its customers and records this 
estimate as a reduction of revenue in the period the related product revenue is recognized. The Company currently estimates 
product return liabilities primarily using its historical sales information. The Company expects product returns to be minimal.
Collaborative Research and Development and Other Revenue
Royalties and Earn-outs: For the Company's arrangements that include sales-based royalties or earn-outs, including 
milestone payments based on first commercial sale or the level of sales, and the license is deemed to be the predominant item to 
which the royalties relate, the Company recognizes revenue at the later of (i) when the related sales occur, or (ii) when the 
performance obligation to which some or all of the royalty or earn-out has been allocated has been satisfied (or partially 
satisfied). 
Research and Development Services: Revenue from research and development services that are determined to represent a 
distinct performance obligation related to services performed under the collaborative arrangements with the Company’s third-
party collaborators is recognized over time as the related research and development services are performed. The Company 
evaluates the measure of progress each reporting period and recognizes revenue on a cumulative catch-up basis, as 
collaborative research and development revenue. The Company performs analytical services for counterparties and recognizes 
revenue upon completion of these services. Research and development expenses under the collaborative research and 
development agreements generally approximate or exceed the revenue recognized under such agreements over the term of the 
respective agreements. Deferred revenue may result when the Company does not expend the required level of effort during a 
specific period in comparison to funds received under the respective agreement.

 
92
The Company receives payments from its customers based on development cost schedules established in each contract. 
Up-front payments are recorded as deferred revenue upon receipt or when due and may require deferral of revenue recognition 
to a future period until the Company performs its obligations under these arrangements. Amounts are recorded as accounts 
receivable when the Company’s right to consideration is unconditional. The Company does not assess whether a contract has a 
significant financing component if the expectation at contract inception is such that the period between payment by the 
customer and the transfer of the promised goods or services to the customer will be one year or less.
Prepaid and Accrued Clinical Costs
The Company incurs significant costs associated with third party consultants and organizations for pre-clinical studies, 
clinical trials, contract research, regulatory advice and other research and development-related services. The Company is 
required to estimate periodically the cost of services rendered but unbilled based on management’s estimates. Estimates are 
determined each reporting period by reviewing the terms and conditions of the underlying contracts, reviewing open purchase 
orders and by having detailed discussions with internal clinical personnel and third-party service providers as to the nature and 
status of the services performed in relation to amounts billed. The costs for unbilled services are estimated by applying the rates 
and fees applicable in the underlying contracts. If these good faith estimates are inaccurate, actual expenses incurred could 
materially differ from these estimates.
Prepaid and Accrued Manufacturing Costs
The Company incurs significant costs associated with third party consultants and organizations for manufacturing, 
validation, testing and other research and development-related services. The Company is required to estimate periodically the 
cost of services rendered but unbilled based on management’s estimates. Estimates are determined each reporting period by 
reviewing the terms and conditions of the underlying contracts, reviewing open purchase orders and by having detailed 
discussions with internal personnel and third-party service providers as to the nature and status of the services performed in 
relation to amounts billed. The costs for unbilled services are estimated by applying the rates and fees applicable in the 
underlying contracts. If these good faith estimates are inaccurate, actual expenses incurred could materially differ from these 
estimates.
Research and Development Expenses
Research and development expenses are primarily comprised of salaries and benefits associated with research and 
development personnel, overhead and facility costs, preclinical and non-clinical development costs, clinical trial and related 
clinical manufacturing costs, contract services, and other outside costs. Research and development costs are expensed as 
incurred. Research and development costs paid to third parties under sponsored research agreements are recognized as the 
related services are performed. In addition, research and development expenses incurred that are reimbursed by the Company’s 
partners are recorded as collaborative research and development revenue.
Comprehensive Loss
Components of other comprehensive loss are comprised entirely of unrealized gains and losses on the Company’s 
available-for-sale securities for all periods presented. Total comprehensive loss has been disclosed in the Company’s Statements 
of Operations and Comprehensive Loss.
Segment Reporting
The Company operates in one operating segment, which is the research, development and manufacturing of 
pharmaceutical products.
     

 
93
Common Stock Warrants
The Company accounts for its common stock warrants in accordance with ASC 480, Distinguishing Liabilities from Equity 
("ASC 480") and ASC 815, Derivatives and Hedging (“ASC 815”). Based upon the provisions of ASC 480 and ASC 815, the 
Company accounts for common stock warrants and pre-funded warrants as current liabilities if the warrant fails the equity 
classification criteria. Common stock warrants and pre-funded warrants classified as liabilities are initially recorded at fair value 
on the grant date and remeasured at each balance sheet date with the offsetting adjustments recorded in change in fair value of 
warrant liabilities within the statements of operations.
The Company values its pre-funded warrants and common stock warrants classified as liabilities using the Black-Scholes 
option pricing model or other acceptable valuation models, including the Monte-Carlo simulation model.
Net Loss Per Share
The Company calculates basic and diluted net loss per share attributable to common stockholders in conformity with the 
two-class method required for participating securities. Certain warrants participate in distributions of the Company. The net loss 
attributable to common stockholders is not allocated to the warrant holders as the holders of warrants do not have a contractual 
obligation to share in losses. Basic net loss per share is calculated by dividing the net loss by the weighted-average number of 
common shares outstanding for the period. Diluted net loss per share is computed by dividing the net loss by the weighted-
average number of common shares outstanding and common stock equivalents (i.e., options and warrants to purchase common 
stock) outstanding during the period, if dilutive, using the treasury stock method for options. 
The numerators and denominators in the calculation of basic and diluted net loss per share were as follows (in thousands, 
except per share amounts):
 
 
 
Year Ended December 31,
 
 
 
2024
  
2023
 
Basic loss per share computation:
 
   
  
Net loss
 $
(8,324 )  $
(27,624 )
Weighted average number of shares outstanding - basic
  
30,940    
26,256  
Net loss per share - basic
 $
(0.27 )  $
(1.05 )
 
 
   
  
Diluted loss per share computation:
 
   
  
Net loss
 $
(8,324 )  $
(27,624 )
Change in fair value of pre-funded warrant liabilities
  
—    
1,557  
Change in fair value of common warrant liabilities
  
—    
2,775  
Net loss adjusted for change in fair value of warrant liabilities
 $
(8,324 )  $
(31,956 )
 
 
   
  
Weighted average shares used to compute basic net loss per share
  
30,940    
26,256  
Dilutive effect of pre-funded warrants
  
—    
168  
Dilutive effect of common warrants
  
—    
96  
Weighted average shares used to compute diluted net loss per 
share
  
30,940    
26,520  
Net loss per share - diluted
 $
(0.27 )  $
(1.20 )
 

 
94
The computation of diluted net loss per share for 2024 and 2023 excludes the impact of options to purchase 4.0 million and 
3.4 million shares of common stock outstanding for the year ended December 31, 2024 and 2023, respectively, as such impact 
would be anti-dilutive.
Both the pre-funded warrants and the common warrants to purchase shares of common stock entitle the holders thereof to 
participate in dividends and other distributions of assets by the Company to its holders of common shares, but are not required to 
absorb losses incurred. As a result, all warrants were excluded from basic net loss per share calculations during 2024 and 2023, 
respectively. For diluted net loss per share purposes, warrants are included in the number of shares outstanding if the effect is 
dilutive. The dilutive effect of pre-funded warrants was zero and 168,000 shares during 2024 and 2023, respectively. Additional 
common warrants to purchase 3.6 million and 2.6 million shares were excluded from the denominator in the calculation of diluted 
net loss per share in 2024 and 2023, respectively, as the effect would be anti-dilutive.
Shipping and Handling
Costs related to shipping and handling are included in cost of revenues for all periods presented.
 
Discontinued Operations
In accordance with ASC 205-20 Presentation of Financial Statements: Discontinued Operations, a disposal of a component 
of an entity or a group of components of an entity is required to be reported as discontinued operations if the disposal represents 
a strategic shift that has (or will have) a major effect on an entity’s operations and financial results when the component/s of an 
entity meets the criteria in paragraph 205-20-45-10. At the same time, the results of all discontinued operations, less applicable 
income taxes, shall be reported as components of net loss separate from the net loss of continuing operations.
The Company disposed of its ALZET product line, a component of its business, in November 2024 and met the definition of 
a discontinued operation as of December 31, 2024. Accordingly, the Company has classified the results of the ALZET product line 
as discontinued operations in its statements of operations and comprehensive loss for all periods presented. All assets and 
liabilities associated with the ALZET product line were classified as assets and liabilities of discontinued operations in the balance 
sheets for the periods presented. All amounts included in the notes to the financial statements relate to continuing operations 
unless otherwise noted. For additional information, see Note 11, “Discontinued Operations” to the financial statements in this 
Annual Report on Form 10-K.
Recent Accounting Pronouncements
In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-
07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (“ASU 2023-07”), which requires all public 
entities, including public entities with a single reportable segment, to provide in interim and annual periods one or more 
measures of segment profit or loss used by the chief operating decision maker to allocate resources and assess performance. 
Additionally, the standard requires disclosures of significant segment expenses and other segment items as well as incremental 
qualitative disclosures. The Company adopted ASU 2023-07 effective December 31, 2024, on a retrospective basis. The adoption 
of 2023-07 did not change the way that the Company identifies its reportable segments and, as a result, did not have a material 
impact on the Company’s segment-related disclosures. Refer to Note 12 for further information on the Company's reportable 
segment.
In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures 
(ASU 2023-09). ASU 2023-09 requires enhanced annual disclosures regarding the rate reconciliation and income taxes paid 
information. ASU 2023-09 is effective for annual periods beginning after December 15, 2024 and may be adopted on a 
prospective or retrospective basis. Early adoption is permitted. The Company is evaluating the impact of this guidance on its 
financial statements and related disclosures.

 
95
In August 2020, FASB issued Accounting Standards Update ("ASU") 2020-06, Debt—Debt with Conversion and Other 
Options (Subtopic 470-20) and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40) — Accounting for 
Convertible Instruments and Contracts in an Entity’s Own Equity ("ASU- 2020-06"), which, among other things, provides guidance 
on how to account for contracts on an entity’s own equity. This ASU simplifies the accounting for certain financial instruments 
with characteristics of liabilities and equity. Specifically, the ASU eliminated the need for the Company to assess whether a 
contract on the entity’s own equity (1) permits settlement in unregistered shares, (2) whether counterparty rights rank higher 
stockholder’s rights, and (3) whether collateral is required. In addition, the ASU requires incremental disclosure related to 
contracts on the entity’s own equity and clarifies the treatment of certain financial instruments accounted for under this ASU on 
earnings per share. This ASU may be applied on a full retrospective of modified retrospective basis. For smaller reporting 
companies, this ASU is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal 
years. The Company early adopted this standard on January 1, 2023 and the adoption did not have any effect on the financial 
statements as the Company did not have any such outstanding instruments as of January 1, 2023.
In June 2016, the FASB issued Accounting Standards Update No. 2016-13 (ASU 2016-13) “Financial Instruments - Credit 
Losses: Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 requires measurement and recognition of 
expected credit losses for financial assets. This standard is effective for fiscal years beginning after December 15, 2022 for small 
reporting companies, including interim reporting periods within those years and must be adopted using a modified retrospective 
approach, with certain exceptions. Early adoption is permitted. The Company adopted the standard on January 1, 2023 and the 
adoption did not have a material effect on the financial statements.
2.
Strategic Agreements
The collaborative research and development and other revenue associated with the Company’s  major collaborators or 
counterparties were $1.9 million and $2.3 million in 2024 and 2023, respectively. The collaborative research and development 
and other revenue included (a) amounts related to earn-out revenue from Indivior UK Limited (“Indivior”) with respect to 
PERSERIS net sales, (b) feasibility programs and research and development activities funded by our collaborators or 
counterparties, (c) royalty revenue from Orient Pharma Co., Ltd. (“Orient Pharma”) with respect to Methydur net sales and (d) 
royalty revenue from Innocoll Pharmaceuticals Limited (“Innocoll”) with respect to POSIMIR net sales. 
Agreement with Innocoll
On December 21, 2021, the Company entered into a license agreement (as amended, the “Innocoll Agreement”) with 
Innocoll. Pursuant to the Innocoll Agreement, the Company granted Innocoll an exclusive, royalty-bearing, sublicensable right and 
license to develop, manufacture and commercialize in the United States, POSIMIR®, the Company’s FDA-approved post-surgical 
pain product, with respect to all uses and applications in humans.  None of the additional milestones under the agreement have 
been met.  On November 8, 2024, the Company received notice that Innocoll is terminating the Innocoll Agreement, effective 
May 6, 2025.  Innocoll has committed to transfer all data and know-how related to POSIMIR to the Company, and the Company is 
evaluating next steps with respect to the commercialization of POSIMIR. We do not expect that this termination will have a 
material impact on our financial statements.
Patent Purchase Agreement with Indivior
In September 2017, we entered into an agreement with Indivior (the “Indivior Agreement”), under which we assigned to 
Indivior certain patents that may provide further intellectual property protection for PERSERIS, Indivior’s extended-release 
injectable suspension for the treatment of schizophrenia in adults. In consideration for such assignment, Indivior made non-
refundable upfront and milestone payments to DURECT totaling $17.5 million. Additionally, under the terms of the agreement 
with Indivior, the 

 
96
Company receives quarterly earn-out payments into 2026 that are based on a single digit percentage of U.S. net sales of 
PERSERIS. Indivior commercially launched PERSERIS in the U.S. in February 2019. The Indivior Agreement contains customary 
representations, warranties and indemnities of the parties. Amounts recognized during the twelve months ended December 31, 
2024 and 2023 related to earn-out revenues from PERSERIS were $1.6 million and $1.7 million, respectively, and were included in 
collaborative research and development and other revenue. In July 2024, Indivior announced discontinuation of sales and 
marketing for PERSERIS due to the highly competitive market and impending changes that are expected to intensify payor 
management in the treatment category in which PERSERIS participates.
3.
Financial Instruments
Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in 
the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the 
measurement date. The Company’s valuation techniques used to measure fair value maximize the use of observable inputs and 
minimize the use of unobservable inputs. The Company follows a fair value hierarchy based on three levels of inputs, of which the 
first two are considered observable and the last unobservable, that may be used to measure fair value. These levels of inputs are 
the following:
•
Level 1—Quoted prices in active markets for identical assets or liabilities.
•
Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar 
assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be 
corroborated by observable market data for substantially the full term of the assets or liabilities.
•
Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value 
of the assets or liabilities.
The Company’s financial instruments are valued using quoted prices in active markets or based upon other observable 
inputs. The following table sets forth the fair value of the Company’s financial assets that were measured at fair value on a 
recurring basis as of December 31, 2024 (in thousands):
 
 
 
Level 1
  
Level 2
  
Level 3
  
Total
 
Money market funds
 $
688   $
—   $
—   $
688  
Certificates of deposit
  
—    
150    
—    
150  
Commercial paper
  
—    
8,913    
—    
8,913  
Total
 $
688   $
9,063   $
—   $
9,751  
 
The following table sets forth the fair value of our financial assets that were measured at fair value on a recurring basis as 
of December 31, 2023 (in thousands):
 
 
 
Level 1
  
Level 2
  
Level 3
  
Total
 
Money market funds
 $
951   $
—   $
—   $
951  
Certificates of deposit
  
—    
150    
—    
150  
Commercial paper
  
—    
24,882    
—    
24,882  
Total
 $
951   $
25,032   $
—   $
25,983  
 
The Company’s financial instruments are valued using quoted prices in active markets or based upon other observable 
inputs. Money market funds are classified as Level 1 financial assets. Certificates of deposit and commercial paper are classified 
as Level 2 financial assets. The fair value of the Level 2 assets is estimated using pricing models using current observable market 
information for similar securities. The Company’s Level 2 investments may include U.S. government-backed securities and 
corporate securities that are valued based upon observable inputs that may include benchmark yields, 

 
97
reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data 
including market research publications. The fair value of commercial paper is based upon the time to maturity and discounted 
using the three-month treasury bill rate. The average remaining maturity of the Company’s Level 2 investments as of December 
31, 2023 is less than twelve months and these investments are rated by S&P and Moody’s at AAA or AA- for securities and A1, A2, 
P1 or P2 for commercial paper.
The following is a summary of available-for-sale securities as of December 31, 2024 and 2023 (in thousands):
 
 
 
December 31, 2024
 
 
 
Amortized
Cost
  
Unrealized
Gain
  
Unrealized
Loss
  
Estimated
Fair
Value
 
Money market funds
 $
688   $
—   $
—   $
688  
Certificates of deposit
  
150    
—    
—    
150  
Commercial paper
  
8,914    
—    
(1 )   
8,913  
 
 $
9,752   $
—   $
(1 )  $
9,751  
Reported as:
 
   
   
   
  
Cash and cash equivalents
 $
8,810   $
—   $
(1 )  $
8,809  
Short-term investments
  
792    
—    
—    
792  
Long-term restricted investments
  
150    
—    
—    
150  
 
 $
9,752   $
—   $
(1 )  $
9,751  
 
 
 
December 31, 2023
 
 
 
Amortized
Cost
  
Unrealized
Gain
  
Unrealized
Loss
  
Estimated
Fair
Value
 
Money market funds
 $
951   $
—   $
—   $
951  
Certificates of deposit
  
150    
—    
—    
150  
Commercial paper
  
24,896    
—    
(14 )   
24,882  
 
 $
25,997   $
—   $
(14 )  $
25,983  
Reported as:
 
   
   
   
  
Cash and cash equivalents
 $
24,566   $
—   $
(13 )  $
24,553  
Short-term investments
  
1,281    
—    
(1 )   
1,280  
Long-term restricted investments
  
150    
—    
—    
150  
 
 $
25,997   $
—   $
(14 )  $
25,983  
 
The following is a summary of the cost and estimated fair value of available-for-sale securities at December 31, 2024, by 
contractual maturity (in thousands):
 
 
 
December 31, 2024
 
 
 
Amortized
Cost
  
Estimated
Fair
Value
 
Mature in one year or less
 
$
8,914   
$
8,913  
Mature after one year through five years
 
 
150   
 
150  
 
 
$
9,064   
$
9,063  
 
There were no securities that have had an unrealized loss for more than 12 months as of December 31, 2024.

 
98
As of December 31, 2024, unrealized losses on available-for-sale investments are not attributed to credit risk and are 
considered to be temporary. The Company believes that it is more-likely-than-not that investments in an unrealized loss position 
will be held until maturity or the recovery of the cost basis of the investment. To date, the Company has not recorded any 
impairment charges on marketable securities related to other-than-temporary declines in market value.
Warrant Liabilities
The following table summarizes the activity of the Company’s Level 3 warrant liabilities as of December 31, 2024 and 2023 
(in thousands):
 
 
 
Year ended December 31,
 
 
 
2024
  
2023
 
Fair value at beginning of year - February 2023 issuance (Pre-funded warrants)
 
$
—   
$
—  
Initial fair value at the original issuance date
 
 
—   
 
1,743  
Change in fair value during the year
 
 
—   
 
(1,557 )
Fair value of liability classified warrants exercised
 
 
—   
 
(186 )
Fair value at end of year - February 2023 issuance (Pre-funded warrants)
 
$
—   
$
—  
 
 
   
  
Fair value at beginning of year - February 2023 issuance (Common warrants)
 
$
312   
$
—  
Initial fair value at the original issuance date
 
 
—   
 
10,290  
Change in fair value during the year
 
 
102   
 
(7,151 )
Fair value of liability classified warrants exercised
 
 
—   
 
(2,827 )
Fair value at end of year - February 2023 issuance (Common warrants)
 
$
414   
$
312  
 
 
   
  
Fair value at end of year - February 2023 issuance
 
$
414   
$
312  
 
  
   
 
Fair value at beginning of year - July 2023 issuance
 
$
912   
$
—  
Initial fair value at the original issuance date
 
 
—   
 
5,788  
Change in fair value during the year
 
 
222   
 
(4,876 )
Fair value of liability classified warrants exercised
 
 
—   
 
—  
Fair value at end of year - July 2023 issuance
 
$
1,134   
$
912  
 
  
   
 
Total fair value at end of year
 
$
1,548   
$
1,224  
 
February 2023 Warrants
In February 2023, the Company issued pre-funded warrants to purchase an aggregate of 300,000 shares of common stock 
and common warrants to purchase an aggregate of 2,000,000 shares of common stock in a registered direct offering.
 
Pre-Funded Warrants
The pre-funded warrants were accounted for as current liabilities on the balance sheets and were adjusted to estimated fair 
value at period end through “other income (expense)” on the statements of operations. The estimated fair value of the 
outstanding pre-funded warrants was $1.7 million and zero as of February 8, 2023 (i.e., the issuance date) and December 31, 
2023, respectively.  In November 2023, all 300,000 shares of the pre-funded warrants were exercised in accordance with the 
financing agreement, resulting in an issuance of 300,000 shares of common stock to the holder. The Company calculated the 

 
99
estimated fair value of the pre-funded warrants using a Black-Scholes option pricing model with the following key assumptions:
 
 
 
February 8, 2023 (issuance)   
Common stock price
 
$
5.81   
Exercise price per share
 
$
0.00001   
Volatility
 
 
86.60 %  
Risk-free interest rate
 
 
3.82 %  
Contractual term (in years)
 
 
5.00   
Expected dividend yield
 
 
— %  
 
Common Warrants
The common warrants are accounted for as current liabilities on the balance sheets and are adjusted to estimated fair 
value at period end through “other income (expense)” on the statements of operations. The estimated fair value of the 
outstanding common warrants was $10.3 million, $312,000 and $414,000 as of February 8, 2023 (i.e., the issuance date), 
December 31, 2023 and December 31, 2024, respectively. In September 2023, 1,400,000 shares of the common warrants were 
exercised through the alternative cashless exercise provision in accordance with the financing agreement, resulting in a net 
issuance of 924,000 shares to the holder. The aggregate number of shares of our common stock issuable in such alternative 
cashless exercise equals the product of (x) 17 the aggregate number of shares of our common stock that would be issuable upon 
exercise of the common warrant in accordance with the terms of such common warrant if such exercise were by means of a cash 
exercise rather than a cashless exercise and (y) 0.66. The Company calculated the estimated fair value of the common warrants 
using a Monte-Carlo simulation model with the following key assumptions. The Company took the likelihood of achieving certain 
events and related impact on the Company's common stock price into account, as appropriate.
The exercise price for the outstanding common warrants was adjusted down from $5.00 per share to $0.51 per share as of 
December 31, 2023 as a result of an anti-dilution provision in the common warrants issued in the February 2023 financing that 
was triggered by the sale of our common stock in the open market in November 2023. There were 600,000 shares of outstanding 
common warrants as of December 31, 2024.
 
 
 
February 8, 2023 
(issuance)
  
December 31, 
2023
 
December 31, 2024
 
Common stock price
 $
5.81   $
0.59  $
0.75  
Exercise price per share
 $
5.00   $
0.51  $
0.51  
Volatility
  
86.60 %   
118.00 %  
132.00 %
Risk-free interest rate
  
3.82 %   
3.93 %  
4.27 %
Contractual term (in years)
  
5.00    
4.10   
3.00  
Expected dividend yield
  
— %   
— %  
— %
 
July 2023 warrants
In July 2023, the Company issued common warrants to purchase an aggregate of 2,991,027 shares of common stock in a 
registered direct offering.
The common warrants are accounted for as current liabilities on the balance sheets and are adjusted to estimated fair 
value at period end through “other income (expense)” on the statements of operations. The estimated fair value of the 
outstanding common warrants was $5.8 million, $912,000 and $1.1 million as of July 21, 2023 (i.e., the issuance date), December 
31, 2023 and December 31, 2024, 

 
100
respectively. The Company calculated the estimated fair value of the common warrants using a Black-Scholes option pricing 
model with the following key assumptions:
 
 
  
   
   
 
 
 
July 21, 2023 
(issuance)
  
December 31, 
2023
  
December 31, 
2024
 
Common stock price
 $
3.05   $
0.59   $
0.75  
Exercise price per share
 $
4.89   $
4.89   $
4.89  
Volatility
  
88.60 %   
115.60 %   
124.49 %
Risk-free interest rate
  
4.18 %   
3.88 %   
4.30 %
Contractual term (in years)
  
5.00    
4.60    
3.50  
Expected dividend yield
  
— %   
— %   
— %
 
There were no exercises of the common warrants issued in the July 2023 registered direct offering.
4.
Property and Equipment, Net
Property and equipment consist of the following (in thousands):
 
 
 
December 31,
 
 
 
2024
  
2023
 
Equipment
 $
5,971   $
5,996  
Leasehold improvements
  
8,059    
8,113  
 
  
14,030    
14,109  
Less accumulated depreciation and amortization
  
(13,989 )   
(14,021 )
Property and equipment, net
 $
41   $
88  
 
Depreciation expense was $49,000 and $148,000 in 2024 and 2023, respectively.
As of December 31, 2024 and 2023, the Company recorded $384,000 and $375,000, respectively, as a liability which was 
included in accrued liabilities and other long-term liabilities on its balance sheets for asset retirement obligations associated with 
the estimated restoration cost for its leased buildings.
5.
Restricted Investments
As of December 31, 2024 and 2023, the Company had $150,000 recorded as restricted investments, which primarily served 
as collateral for letters of credit securing a leased facility in California.
6.
Commitments
Operating Leases
The Company has lease arrangements for its facilities in California as follows. 
 
 
Location
 
Approximate
Square Feet 
 
Operation
 
Expiration
Cupertino, CA
 30,149 sq. ft.
 Office, Laboratory and 
Manufacturing
 Lease expires 2027 (with an option to renew for an additional 
five years) 
 
Under these leases, the Company is required to pay certain maintenance expenses in addition to monthly rent. Rent 
expense is recognized on a straight-line basis over the lease term for leases that have scheduled rental payment increases. Rent 
expense under all operating leases was $1.5 million and $2.0 million for the years ended December 31, 2024 and 2023. In 
determining the net present value of lease payments, the Company used its incremental borrowing rate of 11.5% based on the 
information available, including remaining lease term, at the adoption date of ASC 842. As of December 31, 2024 and 2023, the 
weighted-average remaining lease term was 2.14 years and 3.48 years, respectively, for the Company’s leased properties.

 
101
Future minimum payments under these noncancelable leases are as follows (in thousands):
 
Year ending December 31,
 
Operating
Leases
 
2025
 $
1,150  
2026
  
1,185  
2027
  
166  
 
  
2,501  
Less present value adjustment
  
(295 )
Operating lease liabilities recognized
 $
2,206  
 
7.
Accrued Liabilities
 
Accrued liabilities as of December 31, 2024 and 2023 were comprised as follows (in thousands):
 
 
 
December 31,
 
 
 
2024
  
2023
 
Accrued compensation and benefits
 $
850   $
1,206  
Accrued clinical costs
  
204    
1,578  
Accrued contract research and manufacturing cost
  
2,841    
2,340  
Others
  
876    
686  
Total
 $
4,771   $
5,810  
 
8.
Term Loan
In July 2016, the Company entered into a $20.0 million secured single-draw term loan (as amended, the “Loan Agreement”) 
with Oxford Finance LLC (“Oxford Finance”). The Company and Oxford Finance entered into five subsequent amendments to the 
Loan Agreement in February 2018, November 2018, December 2019, March 2021 and May 2021. For amendments 1-3 and 5, the 
Company paid Oxford Finance loan modification fees of $100,000, $900,000, $825,000 and $712,500, respectively. As amended, 
the Loan Agreement provided for interest only payments through June 1, 2023, followed by consecutive monthly payments of 
principal and interest in arrears starting on June 1, 2023 and continuing through the maturity date of the term loan of September 
1, 2025. The Loan Agreement provided for a floating interest rate (7.95% initially and 12.75% as of December 31, 2023) based on 
an index rate plus a spread. In addition, a payment equal to 10% of the principal amount of the term loan was due when the term 
loan became due or upon the prepayment of the facility. If the Company elected to prepay the loan, there was also a prepayment 
fee of between 0.75% and 2.5% of the principal amount of the term loan depending on the timing of prepayment. The $150,000 
facility fee that was paid at the original closing, the loan modification fees and other debt offering/issuance costs had been 
recorded as debt discount on the Company’s balance sheets and together with the final $2.0 million payment were being 
amortized to interest expense using the effective interest method over the revised term of the loan. The Company made principal 
payments of $5.0 million in 2023.
The term loan was secured by substantially all of the assets of the Company, except that the collateral did not include any 
intellectual property (including licensing, collaboration and similar agreements relating thereto), and certain other excluded 
assets. The Loan Agreement contained customary representations, warranties and covenants by the Company, which covenants 
limited the Company’s ability to convey, sell, lease, transfer, assign or otherwise dispose of certain assets of the Company; 
engage in any business other than the businesses currently engaged in by the Company or reasonably related thereto; liquidate 
or dissolve; make certain management changes; undergo certain change of control events; create, incur, assume, or be liable 
with respect to certain indebtedness; grant certain liens; pay dividends and make certain other restricted payments; make 
certain investments; and make payments on any subordinated debt.

 
102
The Loan Agreement also contained customary indemnification obligations and customary events of default, including, 
among other things, the Company’s failure to fulfill certain obligations of the Company under the Loan Agreement and the 
occurrence of a material adverse change which was defined as a material adverse change in the Company’s business, operations, 
or condition (financial or otherwise), a material impairment of the prospect of repayment of any portion of the loan, or a material 
impairment in the perfection or priority of lender’s lien in the collateral or in the value of such collateral. In the event of default by 
the Company under the Loan Agreement, the lender would be entitled to exercise its remedies thereunder, including the right to 
accelerate the debt, upon which the Company may be required to repay all amounts then outstanding under the Loan 
Agreement, which could harm the Company’s financial condition. The conditionally exercisable call option related to the event of 
default was considered to be an embedded derivative which is required to be bifurcated and accounted for as a separate financial 
instrument. In the periods presented, the value of the embedded derivative was not material, but could become material in future 
periods if an event of default became more probable than is currently estimated.
As of December 31, 2023, the Company was in compliance with all material covenants under the Loan Agreement and 
there had been no material adverse change. In accordance with ASC 470-10-45-2, the term loan was classified as a current 
liability on the Company’s balance sheet as of December 31, 2023 due to the timing of repayment obligations and due to 
recurring losses, liquidity concerns and a subjective acceleration clause in the Company’s Loan Agreement.
In 2024, the Company completed the sale of our ALZET product line to Lafayette Instrument Co. (LIC), a portfolio company 
of Branford Castle Partners II, L.P., a North-American focused private equity firm. Under the terms of the agreement, LIC paid 
DURECT $17.5 million in exchange for certain assets and liabilities associated with the ALZET product line. Simultaneous with this 
transaction, the Company paid off all remaining obligations under the term loan agreement with Oxford Finance LLC.
9.
Stockholders’ Equity
Common Stock
In July 2021, the Company filed a shelf registration statement on Form S-3 with the SEC (the “2021 Registration 
Statement”) (File No. 333-258333), which upon being declared effective in August 2021, allows the Company to offer up to 
$250.0 million of securities from time to time in one or more public offerings, inclusive of up to $75.0 million of shares of the 
Company’s common stock which the Company may sell, subject to certain limitations, pursuant to a sales agreement dated July 
30, 2021 with Cantor Fitzgerald & Co. (the “2021 Sales Agreement”). The 2021 Registration Statement expired on August 16, 
2024. 
On December 5, 2022, the Company effected a 1-for-10 reverse stock split of its outstanding common stock. The reverse 
stock split also affected our outstanding stock options, purchase rights and equity incentive plans and resulted in the shares 
underlying such instruments being reduced and the exercise price being increased proportionately. 
On August 14, 2024, the Company filed a shelf registration statement on Form S-3 with the SEC (the “2024 Registration 
Statement”) (File No. 333-281550), which upon being declared effective on August 23, 2024, allowed the Company to offer up to 
$250.0 million of securities from time to time in one or more public offerings.  In addition, due to the SEC’s “baby shelf” rules, 
which prohibit companies with a public float of less than $75 million from issuing securities under a shelf registration statement in 
excess of one-third of such company’s public float in a 12-month period, the Company are currently only able to issue a limited 
number of shares under our 2024 Registration Statement, which aggregate to no more than one-third of our public float.

 
103
Registered Direct Offerings
February 2023 Financing
On February 3, 2023, the Company entered into a securities purchase agreement with two institutional investors relating to 
the purchase and sale of an aggregate of (i) 1,700,000 shares of its common stock, par value $0.0001 per share, (ii) pre-funded 
warrants to purchase 300,000 shares of common stock, and (iii) accompanying common warrants, to purchase an aggregate of 
2,000,000 shares of Common Stock, in a registered direct offering (the "February Offering"). The issuance date of the common 
stock, the pre-funded warrants and the accompanying common warrants was February 8, 2023. The aggregate net proceeds to 
the Company from the February Offering were approximately $8.8 million after deducting $1.2 million in placement agent fees 
and other offering expenses, which were allocated to warrant liabilities and included in loss on issuance of warrants on the 
statement of operations for the twelve months ended December 31, 2023.
The pre-funded warrants were exercisable immediately following the closing date of the February Offering and have an 
unlimited term and an initial exercise price of $0.00001 per share. The common warrants were immediately exercisable and have 
a five-year term and an initial exercise price of $5.00 per share, which was lowered to $4.89 per share as a result of an anti-
dilution provision in the common warrants issued in the February Offering that was triggered by the July Offering (as defined 
below) and then lowered to $0.51 that was triggered by the sale of our common stock in the open market in November 2023. The 
combined offering price was $5.00 per share and accompanying common warrant, or in the case of pre-funded warrants, 
$4.99999 per pre-funded warrant and accompanying common warrant. A holder (together with its affiliates) may not exercise any 
portion of a pre-funded warrant or common warrant to the extent that the holder would own more than 4.99% (or, at the election 
of the holder 9.99%) of the Company’s outstanding common stock immediately after exercise.
The Company accounts for the pre-funded warrants and the common warrants as current liabilities based upon the 
guidance of ASC 480 and ASC 815. The Company evaluated the common and pre-funded warrants under ASC 815-40, Derivatives 
and Hedging—Contracts in Entity’s Own Equity (“ASC 815-40”) and concluded that they do not meet the criteria to be classified in 
stockholders’ equity. Specifically, the exercise of the pre-funded warrants could be settled in cash upon the occurrence of a 
tender offer or exchange that involves 50% or more of the Company’s common stock. Because a change of 50% or more of the 
Company’s common stock may not result in a change in control of the Company, the Company believes that the scope exception 
related to the occurrence of a fundamental transaction in ASC 815-40 is not met. The common warrants have the same 
characteristics as the pre-funded warrants related to the occurrence of a fundamental transaction, therefore the common 
warrants are also precluded from equity classification. In addition, the holder of the common warrants is permitted to receive the 
highest volume weighted average price ("VWAP") from the date of announcement of the fundamental transaction through the 
date the holder provides notice of repurchase, as a way to protect the holder against reductions in the stock price in a 
fundamental transaction, while allowing the holder to keep the benefits of an upside, which precludes the common warrants from 
being considered indexed to the Company’s stock. Since the common and pre-funded warrants meet the definition of derivatives 
under ASC 815, the Company records these warrants as current liabilities on the balance sheets at fair value, with subsequent 
changes in their respective fair values recognized in the statements of operations and comprehensive loss at each reporting date. 
Estimating fair values of liability-classified financial instruments requires the development of estimates that may, and are 
likely to, change over the duration of the instrument with related changes in internal and external market factors. In addition, 
option-based techniques are highly volatile and sensitive to changes in the trading market price of the Company’s common stock. 
Because liability-classified financial instruments are initially and subsequently carried at fair value, the Company’s financial 
results 

 
104
will reflect the volatility in these estimate and assumption changes. Changes in estimated fair value are recognized as a 
component of other income (expense) in the statements of operations. 
At the date of issuance, the Company valued the common warrants using a Monte-Carlo valuation model due to the 
presence of an alternative cashless settlement feature in the financing agreement that provides the warrant holders with an 
alternative settlement feature to receive a fixed percentage of the shares underlying the warrants for no consideration. Because 
this feature allows for the warrant holders to use an alternative mechanism to exercise their warrants in a manner that would 
yield different values, a Monte-Carlo valuation model was determined to be appropriate. The Monte-Carlo valuation resulted in an 
estimated fair value of the common warrants at issuance of $10.3 million.  The pre-funded warrants were valued using the Black-
Scholes option valuation model which is a common valuation method that is generally used for valuing warrants that are for the 
exercise of a fixed number of shares at a fixed exercise price per share. The Black-Scholes method was determined to be 
appropriate for the pre-funded warrants given the lack of alternative mechanisms to settle the warrants in a manner that would 
yield different values, such as an alternative cashless settlement feature. The Black-Scholes valuation resulted in an estimated 
fair value of the pre-funded warrants at issuance of $1.7 million. 
Since the estimated fair value of the warrants at issuance was greater than the gross proceeds of $10.0 million received, 
the Company recorded approximately $2.0 million (i.e., the difference of the estimated fair values of the warrants and the gross 
proceeds received) as a loss on issuance of warrants on the statements of operations at issuance.
In September 2023, 1,400,000 shares of the common warrants were exercised in connection with the alternative cashless 
exercise of the warrants, the Company issued 924,000 shares to the holder. The Company recorded a gain of $3.4 million 
resulting from the exercise of the warrants in the accompanying statements of operations for the twelve months ended 
December 31, 2023 and recorded $2.8 million in additional-paid-in capital upon the issuance of the shares on the balance sheet 
as of December 31, 2023. 
In November 2023, 300,000 shares of the pre-funded warrants were exercised in connection with the cashless exercise of 
the warrants, the Company issued 300,000 shares to the holder. The Company recorded a gain of $561,000 resulting from the 
exercise of the pre-funded warrants in the accompanying statements of operations for the year ended December 31, 2023 and 
recorded $186,000 in additional-paid-in capital upon the issuance of the shares on the balance sheet as of December 31, 2023. 
As of December 31, 2024 and 2023, common warrants to purchase 600,000 shares of the Company's common stock were 
outstanding. 
At December 31, 2024, the Company updated the estimated fair value of the outstanding common warrants using a Monte-
Carlo valuation model resulting in an estimated fair value of $414,000, an increase of $102,000 for these common warrants 
compared with December 31, 2023.  At December 31, 2023, the Company updated the estimated fair value of the outstanding 
common warrants using a Monte-Carlo valuation model resulting in an estimated fair value of $312,000, a decrease of $2.8 
million for these common warrants on the issuance date.  
As of December 31, 2024 and 2023, there were no pre-funded warrants outstanding. 
The total loss of $102,000 resulting from the change in the estimated fair value of the liabilities for the common warrants 
was recorded as a change in the estimated fair value of warrant liabilities in the accompanying statements of operations for the 
year ended December 31, 2024. The total gain of $7.2 million and $1.6 million resulting from the change in the estimated fair 
value of the liabilities for the common warrants and pre-funded warrants, respectively, was recorded as a change in the 
estimated fair value of warrant liabilities in the accompanying statements of operations for the year ended December 31, 2023. 

 
105
The common warrant liability will be adjusted to estimated fair value at each balance sheet date until the warrants are 
settled. Changes in the estimated fair value of the warrant liabilities are recognized as a component of other income (expense), 
net in the statements of operations and comprehensive loss.
July 2023 Financing
On July 19, 2023, the Company entered into a securities purchase agreement with several institutional investors relating to 
the purchase and sale of an aggregate of (i) 2,991,027 shares of its common stock, par value $0.0001 per share, and (ii) 
accompanying common warrants to purchase an aggregate of 2,991,027 shares of common stock, in a registered direct offering 
(the “July Offering”). The issuance date of the common stock and the accompanying common warrants was July 21, 2023. The 
aggregate net proceeds to the Company from the July Offering were approximately $13.9 million after deducting $1.1 million in 
placement agent fees and other offering expenses.
The common warrants were immediately exercisable and have a five-year term and an initial exercise price of $4.89 per 
share. The combined offering price was $5.015 per share and accompanying common warrant. A holder (together with its 
affiliates) may not exercise any portion of the common warrants to the extent that the holder would own more than 4.99% (or, at 
the election of the holder 9.99%) of the Company’s outstanding common stock immediately after exercise.
The common stock and common warrants are separate freestanding instruments. The estimated fair value of the common 
stock issued in the July Offering as of the date of issuance (i.e., July 21, 2023) was $9.1 million, which was the number of shares 
of 2,991,027 multiplied by the price per share as of the date of issuance of $3.05 per share. The common stock issued in the July 
Offering was classified as equity on the Company’s balance sheets. The Company allocated the offering expenses related to the 
July 2023 offering of $1.1 million based on the relative fair values of common stock and common warrants issued. The Company 
recognized an expense for the amount allocated to the common warrants of $427,000 (included within other expense, net) upon 
the closing of the offering in the year ended December 31, 2023. The Company recorded the amount allocated to the common 
stock of $673,000 as a reduction in additional paid-in capital on its balance sheets as of December 31, 2023. 
The Company accounted for the common warrants issued in the July Offering as current liabilities based upon the guidance 
of ASC 815. The Company evaluated the common warrants under ASC 815-40, Derivatives and Hedging—Contracts in Entity’s 
Own Equity (“ASC 815-40”) and concluded that they do not meet the criteria to be classified in stockholders’ equity. Upon a 
fundamental transaction, holders of the common warrants are permitted to settle warrants for a value determined using the 
Black-Scholes formula that incorporates a leveraged common stock price. Specifically, for purposes of the calculation, the stock 
price is determined as the higher of the VWAP measured over the period from the date of announcement of the fundamental 
transaction through the date the holder provides notice of repurchase, and the value received by common stockholders in such 
fundamental transaction. This in effect protects the holder against reductions in the stock price that may result from a 
fundamental transaction, while allowing the holder to keep the benefits of an upside. This feature precludes the common 
warrants from being considered indexed to the Company’s stock. 
Since the common warrants meet the definition of derivatives under ASC 815, the Company recorded these warrants as 
current liabilities on the balance sheets at the estimated fair value, with subsequent changes in their respective estimated fair 
values recognized in the statements of operations and comprehensive loss at each reporting date. 
Estimating fair values of liability-classified financial instruments requires the development of estimates that may, and are 
likely to, change over the duration of the instrument with related changes in internal and external market factors. In addition, 
option-based techniques are highly volatile and sensitive to changes in the trading market price of the Company’s common stock. 
Because liability-classified financial instruments are initially and subsequently carried at fair value, the Company’s financial 
results 

 
106
will reflect the volatility in these estimate and assumption changes. Changes in fair value are recognized as a component of other 
income (expense) in the statements of operations. 
The Company valued the common warrants issued in the July Offering using the Black-Scholes option valuation model. The 
Black-Scholes method was determined to be appropriate given the lack of alternative mechanisms to settle the warrants in a 
manner that would yield different values, such as an alternative cashless settlement feature. The fair value of these warrants as 
of the issuance date, as of December 31, 2023 and December 31, 2024 were $5.8 million, $912,000 and $1.1 million, 
respectively. The loss of $221,000 resulting from the change in the fair value of the liability for these warrants was recorded as a 
change in estimated fair value of warrant liabilities in the accompanying statements of operations for the twelve months ended 
December 31, 2024.The gain of $4.9 million resulting from the change in the fair value of the liability for these warrants was 
recorded as a change in estimated fair value of warrant liabilities in the accompanying statements of operations for the twelve 
months ended December 31, 2023.
The common warrant liability will be adjusted to estimated fair value at each balance sheet date until the warrants are 
settled. Changes in the estimated fair value of the warrant liabilities are recognized as a component of other income (expense), 
net in the statements of operations and comprehensive loss.
As of December 31, 2024, none of the warrants issued in the July Offering have been exercised. Common warrants to 
purchase 2,991,027 shares of the Company's common stock were outstanding with an exercise price of $4.89 per share.
ATM Financings
During the twelve months ended December 31, 2024, the Company raised net proceeds (net of commissions) of 
approximately $648,000 from the sale of 702,090 shares of the Company’s common stock in the open market at a weighted 
average price of $0.94 per share pursuant to the 2021 Registration Statement and the 2021 Sales Agreement.  
During the twelve months ended December 31, 2023, there were no sales of the Company's common stock in the open 
market.  
As of March 25, 2025, the Company had up to $250.0 million of the Company’s securities available for sale under the 2024 
Registration Statement. However, due to the SEC’s “baby shelf” rules discussed above, only up to approximately $8.7 million of 
our securities are available for sale under the 2024 Registration Statement.
Description of Stock-Based Compensation Plans
2000 Stock Plan (Incentive Stock Plan)
In January 2000, the Company’s Board of Directors and stockholders adopted the DURECT Corporation 2000 Stock Plan, 
under which incentive stock options and non-statutory stock options and stock purchase rights may be granted to employees, 
consultants and non-employee directors. The 2000 Stock Plan was amended by written consent of the Board of Directors in March 
2000 and written consent of the stockholders in August 2000.
In April 2005, the Board of Directors approved certain amendments to the 2000 Stock Plan. At the Company’s annual 
stockholders meeting in June 2005, the stockholders approved the amendments of the 2000 Stock Plan to: (i) expand the types of 
awards that the Company may grant to eligible service providers under the Stock Plan to include restricted stock units, stock 
appreciation rights and other similar types of awards (including other awards under which recipients are not required to pay any 
purchase or exercise price) as well as cash awards; and (ii) include certain performance criteria that may be applied to awards 
granted under the Stock Plan.

 
107
At the Company’s annual stockholders meeting in June 2010, the stockholders approved amendments of the 2000 Stock 
Plan to: (i) provide that the number of shares that remain available for issuance will be reduced by two shares for each share 
issued pursuant to an award (other than an option or stock appreciation right) granted on or after the date of the 2010 Annual 
Meeting; (ii) expand the types of transactions that might be considered repricings and option exchanges for which stockholder 
approval is required; (iii) provide that shares tendered or withheld in payment of the exercise price of an option or withheld to 
satisfy a withholding obligation, and all shares with respect to which a stock appreciation right is exercised, will not again be 
available for issuance under the Stock Plan; (iv) require that options and stock appreciation rights have an exercise price or base 
appreciation amount that is at least fair market value on the grant date, except in connection with certain corporate transactions, 
and that stock appreciation rights may not have longer than a 10-year term; (v) add new performance goals that may be used to 
provide “performance-based compensation” under the 2000 Stock Plan; (vi) extend the term of the 2000 Stock Plan to the date 
that is ten (10) years following the stockholders meeting; and (vii) expand the treatment of outstanding awards in connection 
with certain changes of control of the Company to cover mergers in which the consideration payable to stockholders is not solely 
securities of the successor corporation.
At the Company’s annual stockholders meeting in June 2011, June 2014, June 2016 and June 2018, the stockholders 
approved amendments of the 2000 Stock Plan to increase the number of shares of the Company’s common stock available for 
issuance by 550,000 shares, 400,000 shares, 500,000 shares, and 750,000 shares, respectively, each of which had previously 
been approved by the Board of Directors. 
At the Company’s annual stockholders meeting in June 2019, the stockholders approved an amendment of the 2000 Stock 
Plan to extend the term of the 2000 Stock Plan to the date that is ten (10) years following the stockholders meeting. 
In April 2013, the Board of Directors approved certain amendments to the 2000 Stock Plan to: (i) increase the number of 
stock options granted to a non-employee director on the date which such person first becomes a director from 3,000 to 7,000 
shares of common stock; each option shall have a ten-year term, become exercisable in installments of one-third of the total 
number of options granted on each anniversary of the grant and have a two-year period following termination of Director status 
in which the former director can exercise the option; (ii) modify the exercise period for future option grants to a non-employee 
director in which a former director can exercise the option following termination of Director status from a one year period to a 
two-year period.
Options granted under the 2000 Stock Plan expire no later than ten years from the date of grant. Options may be granted 
with different vesting terms from time to time not to exceed five years from the date of grant. The option price of an incentive 
stock option granted to an employee or of a nonstatutory stock option granted to any person who owns stock representing more 
than 10% of the total combined voting power of all classes of stock of the Company (or any parent or subsidiary) shall be no less 
than 110% of the fair market value per share on the date of grant. The option price of an incentive stock option granted to any 
other employee shall be no less than 100% of the fair market value per share on the date of grant.
At the Company’s annual stockholders meeting in June 2022, the stockholders approved an amendment of the 2000 Stock 
Plan to increase the number of shares of the Company’s common stock available for issuance by 1,800,000 shares and to extend 
the term of the 2000 Stock Plan to the date that is ten (10) years following the stockholders meeting. 
At the Company’s annual stockholders meeting in September 2024, the stockholders approved an amendment of the 2000 
Stock Plan to increase the number of shares of the Company’s common stock available for issuance by 2,000,000 shares and to 
extend the term of the 2000 Stock Plan to the date that is ten (10) years following the stockholders meeting. 

 
108
A total of 8,429,650 shares of common stock have been reserved for issuance under this plan. The plan expires in June 
2034.
As of December 31, 2024, 1,844,180 shares of common stock were available for future grant and options to purchase 
4,619,287 shares of common stock were outstanding under the 2000 Stock Plan.    
 
2000 Employee Stock Purchase Plan
In August 2000, the Company adopted the 2000 Employee Stock Purchase Plan. This purchase plan is implemented by a 
series of overlapping offering periods of 24 months’ duration, with new offering periods, other than the first offering period, 
beginning on May 1 and November 1 of each year and ending April 30 and October 31, respectively, two years later. The 
purchase plan allows eligible employees to purchase common stock through payroll deductions at a price equal to the lower of 
85% of the fair market value of the Company’s common stock at the beginning of each offering period or at the end of each 
purchase period. The initial offering period commenced on the effectiveness of the Company’s initial public offering.
In April 2010, the Board of Directors approved certain amendments to the 2000 Employee Stock Purchase Plan. At the 
Company’s annual stockholders meeting in June 2010, the stockholders approved the amendment of the 2000 Employee Stock 
Purchase Plan to: (i) increase the number of shares of our common stock authorized for issuance under the ESPP by 25,000 
shares; (ii) extend the term of the ESPP to the date that is ten (10) years following the stockholders meeting; (iii) provide for six-
month consecutive offering periods beginning on November 1, 2010; (iv) revise certain provisions to reflect the final regulations 
issued under Section 423 of the Code by the Internal Revenue Service; and (v) provide for the cash-out of options outstanding 
under an offering period in effect prior to the consummation of certain corporate transactions as an alternative to providing for a 
final purchase under such offering period.
In March 2015, the Board of Directors approved certain amendments to the 2000 Employee Stock Purchase Plan. At the 
Company’s annual stockholders meeting in June 2015, the stockholders approved the amendments of the 2000 Employee Stock 
Purchase Plan to: (i) increase the number of shares of our common stock authorized for issuance under the ESPP by 35,000 
shares; and (ii) extend the term of the ESPP to the date that is ten (10) years following the stockholders meeting. At each of the 
Company’s annual stockholders meeting in June 2017 and in June 2020, the stockholders approved amendments of the 2000 
Employee Stock Purchase Plan to increase the number of shares our common stock authorized for issuance under the ESPP by 
35,000 shares and to re-approve its material terms. At the Company’s annual stockholders meeting in June 2023, the 
stockholders approved amendments of the 2000 Employee Stock Purchase Plan to increase the number of shares of our common 
stock authorized for issuance under the ESPP by 40,000 shares and to re-approve its material terms.
The plan expires in June 2033. A total of 365,000 shares of common stock have been reserved for issuance under this plan. 
As of December 31, 2024, 49,667 shares of common stock were available for future grant and 315,333 shares of common stock 
have been issued under the 2000 Employee Stock Purchase Plan.
As of December 31, 2024, shares of common stock reserved for future issuance consisted of the following:
 
 
 
December 31,
2024
 
Stock options outstanding
  
4,619,287  
Restricted stock units outstanding
  
275,000  
Stock options available for grant
  
1,844,180  
Employee Stock Purchase Plan
  
49,667  
 
  
6,788,134  
 

 
109
A summary of stock option activity under all stock-based compensation plans is as follows:
 
 
 
Number of
Options
  
Weighted
Average
Exercise
Price Per 
Share
  
Weighted
Average 
Remaining
Contractual 
Term
(in Years)
  
Aggregate
Intrinsic
Value
(in millions)
 
Outstanding at December 31, 2023
  
4,128,259   $
9.37    
6.22   $
—  
Options granted
  
1,268,950   $
1.30   
   
  
Options exercised
  
—   $
—   
   
  
Options forfeited
  
(176,318 )  $
9.02   
   
  
Options expired
  
(601,604 )  $
13.76   
   
  
Outstanding at December 31, 2024
  
4,619,287   $
6.59    
6.73   $
—  
Exercisable at December 31, 2024
  
2,343,759   $
10.34    
4.44   $
—  
Vested and expected to vest at
   December 31, 2024
  
4,619,287   $
6.59    
6.73   $
—  
 
The weighted-average grant date fair value of options granted during the years ended December 31, 2024 and 2023 was 
$1.30 and $4.36 per share, respectively. The aggregate intrinsic value in the table above represents the total intrinsic value (i.e., 
the difference between the Company’s closing stock price on the last trading day of 2024 and the exercise price, multiplied by 
the number of in-the-money options) that would have been received by the option holders had all option holders exercised their 
in-the-money options on December 31, 2024. This amount changes based on the fair market value of the Company’s common 
stock. The total value of options exercised was zero and $1,400 for the years ended December 31, 2024 and 2023, respectively.
Expenses for non-employee stock options are recorded over the vesting period of the options, which closely approximates 
the non-employee’s performance period, with the value determined by the Black-Scholes option valuation method and 
remeasured over the vesting term.
As of December 31, 2024, the Company had two stock-based equity compensation plans, which are described above. The 
employee stock-based compensation cost that has been included in the statements of operations and comprehensive loss is 
shown as below (in thousands):
 
 
 
Year ended December 31,
 
 
 
2024
  
2023
 
Research and development
 $
747   $
1,163  
Selling, general and administrative
  
1,173    
1,310  
 
 $
1,920   $
2,473  
 
Because the Company had a net operating loss carryforward as of December 31, 2024, no excess tax benefits for the tax 
deductions related to stock-based compensation were recognized in the statements of operations. Additionally, no incremental 
tax benefits were recognized from stock options exercised during 2024, which would have resulted in a reclassification to reduce 
net cash provided by operating activities with an offsetting increase in net cash provided by financing activities.
Determining Fair Value
Valuation and Expense Recognition.    The Company estimates the fair value of stock options granted using the Black-
Scholes option valuation model. The Company recognizes the expense on a straight-line basis. The expense for options is 
recognized over the requisite service periods of the awards, which is generally the vesting period.
Expected Term.    The expected term of options granted represents the period of time that the options are expected to be 
outstanding. The Company determines the expected life using historical options experience. This develops the expected life by 
taking the weighted average of the actual life of 

 
110
options exercised and cancelled and assumes that outstanding options are exercised uniformly from the current holding period 
through the end of the contractual life.
Expected Volatility.    The Company estimates the volatility of its common stock at the date of grant based on the historical 
volatility of the Company’s common stock.
Risk-Free Rate.    The Company bases the risk-free rate that it uses in the Black-Scholes option valuation model on the 
implied yield in effect at the time of option grant on U.S. Treasury zero-coupon issues with substantially equivalent remaining 
terms.
Dividends.    The Company has never paid any cash dividends on its common stock and the Company does not anticipate 
paying any cash dividends in the foreseeable future. Consequently, the Company uses an expected dividend yield of zero in the 
Black-Scholes option valuation model.
The Company used the following assumptions to estimate the fair value of options granted and shares purchased under its 
stock plans and employee stock purchase plan for the years ended December 31, 2024 and 2023:
 
 
 
Year ended December 31,
 
 
 
2024
  
2023
 
Stock Options
 
   
  
Risk-free rate
 
3.7-4.2%   
4.0-4.2%  
Expected dividend yield
  
—    
—  
Expected term (in years)
 
7.3-7.50   
7.0-7.5  
Volatility
 
109-110%   
87-88%  
Forfeiture rate (1)
  
0.0 %   
0.0 %
 
(1)
The Company accounts for forfeitures as they occur. 
 
 
 
Year ended December 31,
 
 
 
2024
  
2023
 
Employee Stock Purchase Plan
 
   
  
Risk-free rate
 
4.4-5.4%   
4.6-5.1%  
Expected dividend yield
  
—    
—  
Expected term (in years)
  
0.5    
0.5  
Volatility
 
95-246%   
88-104%  
 
There were 6,000 and 9,788 shares purchased under the Company’s employee stock purchase plan during the years ended 
December 31, 2024 and 2023, respectively. Included in the statements of operations and comprehensive loss for the years ended 
December 31, 2024 and 2023 was $1,600 and $5,300, respectively, in stock-based compensation expense related to the 
recognition of expenses related to shares purchased under the Company’s employee stock purchase plan.
As of December 31, 2024, $2.5 million of total unrecognized compensation costs related to nonvested stock options is 
expected to be recognized over the respective vesting terms of each award through 2028. The weighted average term of the 
unrecognized stock-based compensation expense is 2.3 years.

 
111
The following table summarizes information about stock options outstanding at December 31, 2024:
 
 
 
Options Outstanding
  
Options Exercisable
 
Range of
      Exercise Price
 
Number of
Options
Outstanding
  
Weighted-
Average
Remaining
Contractual Life
(In years)
  
Weighted-
Average
Exercise
Price
  
Number of
Options
Exercisable
  
Weighted-
Average
Exercise
Price
 
$1.06-$1.22
  
36,000    
8.25   
$
1.21    
2,000   
$
1.06  
$1.30-$1.30
  
1,231,950    
9.49   
$
1.30    
41,500   
$
1.30  
$3.12-$3.12
  
88    
0.10   
$
3.12    
88   
$
3.12  
$3.32-$3.32
  
650,000    
8.64   
$
3.32    
—   
$
—  
$4.00-$4.93
  
69,285    
7.40   
$
4.53    
42,160   
$
4.54  
$5.07-$5.07
  
851,872    
7.40   
$
5.07    
576,086   
$
5.07  
$5.29-$8.71
  
605,168    
5.66   
$
7.06    
518,183   
$
6.81  
$8.80-$12.40
  
494,389    
1.57   
$
11.13    
494,389   
$
11.13  
$12.60-$21.00
  
501,396    
3.48   
$
16.33    
490,214   
$
16.27  
$21.10-$28.00
  
179,139    
4.07   
$
22.67    
179,139   
$
22.67  
$1.06 - $28.00
  
4,619,287    
6.73   
$
6.59    
2,343,759   
$
10.34  
 
The Company received zero and $5,500 in cash from option exercises under all stock-based compensation plans for the 
years ended December 31, 2024 and 2023, respectively.
10.
Income Taxes
The Company accounts for income taxes using the liability method under ASC 740, Income Taxes. Under this method, 
deferred tax assets and liabilities are determined based on temporary differences resulting from the different treatment of items 
for tax and financial reporting purposes. Deferred tax assets and liabilities are measured using enacted tax rates expected to 
apply to taxable income in the years in which those temporary differences are expected to reverse. Additionally, the Company 
must assess the likelihood that deferred tax assets will be recovered as deductions from future taxable income. The Company 
has provided a full valuation allowance on the Company’s deferred tax assets because the Company believes it is more likely 
than not that its deferred tax assets will not be realized. The Company evaluates the realizability of its deferred tax assets on a 
quarterly basis. The Company recorded a deferred tax liability of zero and $244,000 on its balance sheets at December 31, 2024 
and 2023, respectively, that arose from tax amortization of an indefinite-lived intangible asset. The Company recorded a tax 
expense of zero in the years ended December 31, 2024 and 2023, respectively. 

 
112
The reconciliation of income tax expenses (benefit), at the statutory federal income tax rate of 21%, to net income tax 
benefit included in the statements of operations and comprehensive loss for the years ended December 31, 2024 and 2023 is as 
follows (in thousands):
 
 
 
Year Ended December 31,
 
 
 
2024
  
2023
 
U.S. federal taxes benefit at statutory rate
 $
(1,799 )  $
(5,801 )
Change in valuation allowance
  
(6,789 )   
3,733  
Stock-based compensation
  
210    
631  
Research and development tax credits
  
2,041    
(1,047 )
Warrants
  
68    
(2,084 )
Expiring net operating losses
  
6,287    
4,540  
Adjustment for Uncertain Tax Positions
  
(760 )   
—  
Sale of ALZET
  
455    
—  
Other
  
43    
28  
Total income tax (benefit) provision
 $
(244 )  $
—  
 
 
   
  
Portion related to discontinued operations
  
244    
—  
Total income tax (benefit) provision
 $
—   $
—  
 
In 2024 and 2023, total income tax provision (benefit) expense was zero. Deferred tax assets and liabilities reflect the net 
tax effects of net operating loss, research and other credit carryforwards, and the temporary differences between the carrying 
amounts of assets and liabilities for financial reporting and the amounts used for income tax purposes.
Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands):
 
 
 
December 31,
 
 
 
2024
  
2023
 
Deferred tax assets:
 
   
  
Net operating loss carryforwards
 $
82,229   $
83,752  
Research and other credits
  
19,906    
21,679  
Section 174 R&D capitalization
  
10,321    
11,004  
Stock-based compensation
  
2,738    
3,076  
Other
  
1,646    
4,976  
Total deferred tax assets
  
116,840    
124,487  
Valuation allowance for deferred tax assets
  
(116,276 )   
(123,393 )
Deferred tax liabilities - right of use asset
  
(564 )   
(1,338 )
Net deferred tax assets and liabilities
 $
—   $
(244 )
 
The Company recognizes deferred tax assets to the extent that the Company believes that these assets are more likely 
than not to be realized. In making such a determination, all available positive and negative evidence is considered, including 
future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies, and results 
of recent operations. If it is determined that the Company would be able to realize deferred tax assets in the future in excess of 
their net recorded amount, the Company would make an adjustment to the deferred tax asset valuation allowance, which would 
cause a provision benefit to be recognized. The recognition and measurement of tax benefits requires significant judgment. 
Judgments concerning the recognition and measurement of tax benefit might change as new information becomes available. 
Given the Company’s history of operating losses, the net deferred tax assets have been fully offset by a valuation allowance. The 
valuation allowance decreased by $7.1 million during 2024 and increased by $5.8 million during 2023, respectively. 

 
113
As of December 31, 2024, the Company had net operating loss carryforwards for federal income tax purposes of 
approximately $303.9 million, of which approximately $197.0 million will expire in the years 2025 through 2037, and 
approximately $106.9 million which do not expire, and federal research and development tax credits of approximately $17.0 
million, which expire at various dates beginning in 2025 through 2043, if not utilized.
As of December 31, 2024, the Company had net operating loss carryforwards for state income tax purposes of 
approximately $270.4 million, which expire in the years 2025 through 2043, if not utilized, and state research and development 
tax credits of approximately $17.8 million, which do not expire.
Utilization of the net operating losses may be subject to a substantial annual limitation due to federal and state ownership 
change limitations. The annual limitation may result in the expiration of net operating losses before utilization.
At December 31, 2024 and December 31, 2023, the Company had unrecognized tax benefits of approximately $12.8 million 
and $13.6 million, respectively (none of which, if recognized, would affect the Company’s effective tax rate). The Company does 
not believe there will be any material changes in its unrecognized tax positions over the next twelve months.
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):
 
 
 
December 31,
 
 
 
2024
  
2023
 
Balance at beginning of the year
 $
13,568   $
13,068  
Decrease related to prior year tax positions
  
(799 )   
(170 )
Increase related to current year tax positions
  
—    
670  
Balance at end of the year
 $
12,769   $
13,568  
 
Interest and penalty costs related to unrecognized tax benefits, if any, are classified as a component of interest and other 
income, net in the Statements of Operations and Comprehensive Loss. The Company did not recognize any interest and penalties 
expenses related to unrecognized tax benefits for the years ended December 31, 2024 and 2023.
The Company files income tax returns in the U.S. federal jurisdiction and various state jurisdictions. The Company is subject 
to U.S. federal and state income tax examination for calendar tax years ending 2000 through 2024 due to unutilized net 
operating losses and research credits. 
Beginning with 2022, the Tax Cuts and Jobs Act eliminated the option to deduct research and development expenditures 
when incurred under Section 174 and requires taxpayers to capitalize and amortize domestic expenditures over five years and 
foreign expenditures over fifteen years. Therefore, based on enacted law, there is a deferred tax asset reflected in the deferred 
tax table for this item, which is offset by a valuation allowance.
11. Discontinued Operations
On November 22, 2024 (the “Closing Date”), the Company entered into an Asset Purchase Agreement (the “APA”) with 
Alzet, LLC, a subsidiary of Lafayette Instrument Co. (the “Purchaser”). Under the terms of the APA, the Company agreed to sell to 
the Purchaser substantially all the assets, and certain specified liabilities, related to the ALZET product line (the “Sale”). The APA 
provided for, subject to certain terms and conditions, the entry into a Transition Services Agreement, pursuant to which the 
Company agrees to perform certain transition services related to the purchased assets for up to six months after the Closing 
Date, subject to potential extensions. 

 
114
On the Closing Date, the Company completed the transaction contemplated by the APA. Pursuant to the terms of the APA, 
the Purchaser paid the Company $17,500,000 subject to certain adjustments, including for net working capital, and also agreed 
to assume certain liabilities with respect to the transferred assets. 
As a result of the sale of the ALZET product line, the operating results from the Company's ALZET product line have been 
excluded from continuing operations and presented as discontinued operations in the accompanying Statements of Operations 
and Comprehensive Loss for all periods presented. During the twelve months ended December 31, 2024, the Company recorded 
a gain on sale of the ALZET product line of $11.5 million, upon the completion of sale to the Purchaser. The Company incurred 
transaction costs related to the sale of ALZET product line in the amount of $2.1 million that were recorded in selling, general and 
administrative expenses within discontinued operations. The results of operations and gain from discontinued operations 
presented below include certain allocations that management believes fairly reflect the utilization of services provided to the 
ALZET product line. The allocations do include interest expense of the Oxford term loan as the loan was required to pay off at the 
close of sale of ALZET product line  for all periods presented. The allocations do not include amounts related to general corporate 
administrative expenses. Therefore, these results of operations do not necessarily reflect what the results of operations would 
have been had the ALZET product line operated as a stand-alone entity. 
The components of income from discontinued operations as reported in the Company’s statements of operations were as 
follows (in thousands):
 
 
 
Year ended December 31,
 
 
 
2024
  
2023
 
Total revenues
 
$
5,106   
$
5,958  
Operating expenses:
 
   
  
Cost of product revenues
 
 
1,288   
 
1,449  
Selling, general and administrative
 
 
3,877   
 
1,710  
Total operating expenses
 
 
5,165   
 
3,159  
Other expense:
 
   
  
Interest and other expenses
 
 
1,504   
 
2,793  
Loss on debt extinguishment
 
 
130   
 
—  
Total costs and expenses
 
 
6,799   
 
5,952  
Income (loss) from discontinued operations
 
 
(1,693 )  
 
6  
Other income:
 
   
  
Gain on sale of the ALZET product line
 
 
11,539   
 
—  
Pretax net income from discontinued operations
 
 
9,846   
 
6  
Income tax benefit
 
 
244   
 
—  
Net income from discontinued operations
 
$
10,090   
$
6  
Net income per share
 
   
  
Basic
 
$
0.33   
$
0.00  
Diluted
 
$
0.33   
$
0.00  
Weighted-average shares used in computing net income per share
 
   
  
Basic
 
 
30,940   
 
26,256  
Diluted
 
 
30,940   
 
26,520  
 
  
  
 
 
   
 

 
115
The following table presents information related to assets and liabilities reported as discontinued
operations in the Company’s balance sheets (in thousands):
 
 
 
December 31,
 
December 31,
 
 
 
2024
 
2023
 
Accounts receivable
 $
—  $
643  
Inventories, net
  
—   
2,087  
Prepaid expenses and other current assets
  
—   
47  
Discontinued operations – current portion
 $
—  $
2,777  
 
 
  
  
Property and equipment, net
 $
—  $
2  
Operating lease right-of-use assets
  
—   
901  
Other long-term assets
  
—   
5  
Discontinued operations – non-current portion
 $
—  $
908  
 
 
  
  
 
 
  
  
Accounts payable
 $
—  $
54  
Accrued liabilities
  
—   
156  
Operating lease liabilities, current portion
  
—   
210  
Discontinued operations – current portion
 $
—  $
420  
 
 
  
  
 
 
  
  
Operating lease liabilities, non-current portion
 $
—  $
734  
Other long-term liabilities
  
—   
100  
Discontinued operations – non-current portion
 $
—  $
834  
 
The following table presents certain non-cash items related to discontinued operations, which are included in the 
Company’s statements of cash flows (in thousands): 
 
 
Years ended 
December 31,
 
 
Years ended 
December 31,
 
 
2024
  
2023
 
Depreciation
$
6   
$
10  
Stock-based compensation expense
 
75   
 
65  
Goodwill
 
3,443   
 
—  
 
$
3,524   
$
75  
Gain on sale of the ALZET product line
$
11,539   
$
—  
Non-cash items, net
$
(8,015 )  
$
75  
 
12. Segment Information
The Company is committed to transforming the treatment of acute organ injury and chronic liver diseases by advancing 
novel and potentially lifesaving therapies based on its endogenous epigenetic regulator program. Larsucosterol, the Company's 
lead drug candidate, binds to and inhibits the activity of DNMTs, epigenetic enzymes which are elevated and associated with 
hypermethylation found in alcohol-AH patients. Larsucosterol is in clinical development for the potential treatment of AH, for 
which FDA has granted a Fast Track Designation; metabolic dysfunction-associated steatohepatitis (“MASH”), also known as non-
alcoholic steatohepatitis or NASH is also being explored. In addition, POSIMIR® (bupivacaine solution) for infiltration use, a non-
opioid analgesic utilizing the innovative SABER® platform technology, is FDA-approved and has been exclusively licensed to 
Innocoll Pharmaceuticals for commercialization in the United States. The Company also manufactures and sells certain excipients 
for certain clients for use as raw materials in their products. 

 
116
 
The Company’s long-lived assets recognized on the Balance Sheets primarily consisted of property and equipment, net and 
operating lease right-of-use assets, which are located within the U.S.
The Company manages the business activities on a consolidated basis and operates in one reportable segment.
The Company's Chief Executive Officer is the Chief Operating Decision Maker (“CODM”). The CODM assesses operating 
performance and makes resource allocation decisions primarily based on net loss, cash on-hand and cash flows utilizing the 
Company’s product development timelines and cash balances as key inputs to resource allocation.
Significant expenses within loss from continuing operations, as well as within net loss, include cost of goods sold, research 
and development, and selling, general and administrative expenses, which are each separately presented on the Company’s 
Statement of Operations and Comprehensive Loss. 
13. Subsequent Events
On January 9, 2025, the Company received a deficiency letter from the Listing Qualifications Department of the Nasdaq 
Stock Market LLC (“Nasdaq”) notifying the Company that for the last 30 consecutive business days the bid price for the 
Company’s common stock had closed below the minimum $1.00 per share requirement for continued inclusion on The Nasdaq 
Capital Market (“Nasdaq”) pursuant to Nasdaq Listing Rule 5550(a)(2) (the “Minimum Closing Bid Price Requirement”). The 
deficiency letter does not result in the immediate delisting of the Company’s common stock from Nasdaq.
The Company has been provided an initial period of 180 calendar days from January 9, 2025, or until July 8, 2025, to regain 
compliance with the Minimum Closing Bid Price Requirement. If the Company is not in compliance with the Minimum Closing Bid 
Price Requirement by July 8, 2025, the Company may be afforded a second 180 calendar day period to regain compliance. To 
qualify, the Company would be required to meet the continued listing requirement for market value of publicly held shares and all 
other initial listing standards required by Nasdaq, except for the Minimum Closing Bid Price Requirement.
The Company intends to continue actively monitoring the closing bid price of its common stock and may, if appropriate, 
consider available options to regain compliance with the Minimum Closing Bid Price Requirement, which could include effecting a 
reverse stock split. However, there can be no assurance that the Company will be able to regain compliance with the Minimum 
Closing Bid Price Requirement.
 

 
117
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.
Not applicable.
Item 9A. Controls and Procedures.
Disclosure Controls and Procedures
As required by paragraph (b) of Exchange Act Rules 13a-15 or 15d-15, DURECT’s management, including our Chief 
Executive Officer and Chief Financial Officer, conducted an evaluation as of the end of the period covered by this report, of the 
effectiveness of DURECT’s disclosure controls and procedures as defined in Exchange Act Rule 13a-15(e) and 15d-15(e). Based 
on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that DURECT’s disclosure controls and 
procedures were effective as of the end of the period covered by this report.
Management’s Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such 
term is defined in Exchange Act Rules 13a-15(f) and 15d-15(f). Under the supervision of our Chief Executive Officer and Chief 
Financial Officer and with the participation of our management, we conducted an evaluation of the effectiveness of our internal 
control over financial reporting as of December 31, 2024 based on the framework in Internal Control—Integrated Framework 
issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 Framework). Based on that evaluation, 
our management concluded that our internal control over financial reporting was effective as of December 31, 2024.
Changes in Internal Control Over Financial Reporting
There were no changes in our internal control over financial reporting identified in connection with the evaluation required 
by paragraph (d) of Exchange Act Rules 13a-15 or 15d-15 that occurred during our last fiscal quarter that have materially 
affected or are reasonably likely to materially affect, our internal control over financial reporting.

 
118
Item 9B. Other Information.
Adjustment of certain items in our Unaudited Condensed Balance Sheet as of December 31, 2024 and Unaudited 
Condensed Statements of Operations and Comprehensive Loss for the year ended December 31, 2024 included within our Fourth 
Quarter and Full Year 2024 Financial Results earnings release. 
Subsequent to the issuance of the Company's earnings announcement on March 26, 2025, the Company recorded an 
adjustment in its Unaudited Condensed Statements of Operations and Comprehensive Loss for the year ended December 31, 
2024 to record an additional $450,000 in accrued liabilities due to recognition of unbilled expenses. The adjustment resulted in 
an increase of $450,000 in total liabilities and a corresponding decrease in stockholders’ equity as of December 31, 2024. The 
effects of this adjustment increased the Company’s net loss by $450,000 in its previously reported Unaudited Condensed 
Statements of Operations and Comprehensive Loss for the year ended December 31, 2024. 
During the fiscal quarter ended December 31, 2024, none of our directors or officers informed us of the adoption or 
termination of a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in 
Regulation S-K, Item 408.
Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.
Not applicable.

 
119
PART III
 
Item 10. Directors, Executive Officers and Corporate Governance. 
The names of the executive officers of the Company and their ages, titles and biographies as of the date hereof are 
incorporated by reference from Part I, Item 1, above.
DIRECTORS
Our Certificate of Incorporation provides that our Board of Directors is divided into three classes, with staggered three-year 
terms. 
Our Class I director, whose term expires at our 2025 annual meeting, is Gail J. Maderis. Our Class II directors, whose terms 
expire at our 2026 annual meeting, are Peter S. Garcia and Judith J. Robertson. Our Class III directors, whose terms expire at our 
2027 annual meeting, are Mohammad Azab, James E. Brown and Gail M. Farfel.  Only one class of directors is elected at each 
annual meeting. The other classes continue to serve for the remainder of their three-year terms. Additionally, the Company plans 
to re-classify one of our Class III directors from Class III to Class I in connection with our 2025 annual meeting in order to re-
balance the class sizes of our Board of Directors to be as nearly equal in number as reasonably possible as required by our 
certificate of incorporation.
Directors 
The names of our directors, their ages as of March 25, 2025 and certain other information about them are set forth below. 
 
Name
 
Age
 
Position
James E. Brown, D.V.M.
 
68
 
President, Chief Executive Officer and Director
Mohammad Azab, M.D., M. Sc., M.B.A. (1) (3)
 
69
 
Director
Gail M. Farfel, Ph.D. (1) (3)
 
61
 
Director
Peter S. Garcia, M.B.A. (1) (2)
 
63
 
Director, Chair of the Audit Committee
Gail J. Maderis, M.B.A. (1) (2)
 
67
 
Chair of the Board and Director Nominee, Chair of the Compensation Committee
Judith J. Robertson (2) (3)
 
65
 
Director, Chair of the Nominating and Corporate Governance Committee
 
(1)
Member of the Compensation Committee
(2)
Member of the Audit Committee
(3)
Member of the Nominating and Corporate Governance Committee
James E. Brown, D.V.M. for the biography of Dr. Brown, please see “Part I, Item 1” – “Executive Officers of the 
Registrant” above. 

 
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Mohammad Azab, M.D., M. Sc., M.B.A. has served on our Board of Directors since January 2021. Dr. Azab served as 
President and Chief Medical Officer of Astex Pharmaceuticals, Inc. (“Astex”) from January 2014 to November 2020 after holding 
the position of Chief Medical Officer there commencing in July 2009.  Upon retirement from his management role, Dr. Azab served 
as the chair of the board of directors for Astex, a subsidiary of Otsuka pharmaceuticals Co. Ltd, till May 2022. Previously, Dr. Azab 
served as President and Chief Executive Officer of Intradigm Corporation, a developer of small interfering RNA cancer 
therapeutics. Prior to this, Dr. Azab served as Executive Vice President of Research and Development, and Chief Medical Officer 
of QLT Inc., and in several drug development leadership positions at Astra Zeneca in the UK and Sanofi Pharmaceuticals in 
France.  Dr. Azab holds his M.D. degree (M.B., B.Ch.) from Cairo University and a Master of Business Administration from the 
Richard Ivey School of Business, University of Western Ontario. He received post-graduate training and degrees in oncology 
research from the University of Paris-Sud and biostatistics from the University of Pierre et Marie Curie in Paris, France. Dr. Azab 
has more than 30 years of experience in clinical research, global drug development, and business management and led the 
global development of several drugs currently approved in oncology and other therapeutic areas. Dr. Azab currently serves on 
the board of directors of Lisata Therapeutics. Dr. Azab previously served on the board of directors of Xenon Pharmaceuticals Inc. 
until June 2024. Dr. Azab’s scientific background including his senior management experience in the pharmaceutical industry and 
his service as a board member on multiple publicly traded companies are among the qualifications he brings to our Board of 
Directors.
Gail M. Farfel, Ph.D. has served on our Board of Directors since April 2019.  Dr. Farfel served as the Chief Executive 
Officer of ProMIS Neurosciences Inc. from September 2022 through December 2023. Prior to that, Dr. Farfel served as the 
Executive Vice President and Chief Development Officer of Zogenix, Inc. (“Zogenix”) from July 2015 and on the board of directors 
of Zogenix International Ltd., a wholly owned subsidiary of Zogenix, Inc. until the acquisition of Zogenix by UCB Pharma S.A. in 
March 2022, where she oversaw Nonclinical and Clinical Development and Regulatory Affairs. Before joining Zogenix, Dr. Farfel 
was Chief Clinical and Regulatory Officer of Marinus Pharmaceuticals Inc., a biopharma engaged in development of treatment for 
neurological disorders. Prior to her entry into the biotech space, Dr. Farfel served as Vice President and Therapeutic Area Head 
for Neuroscience at Novartis Pharmaceuticals Corporation, where she oversaw their portfolio of neurology and psychiatry 
products. Dr. Farfel began her career in pharmaceutical drug development at Pfizer Inc., where she worked in Clinical 
Development and Global Medical Affairs, directing programs through all stages of clinical development and regulatory 
submissions. Additionally, Dr. Farfel previously served on the board of directors of AVROBIO, Inc. from October 2020 to June 2024.  
Dr. Farfel is the author of over 50 scientific articles and presentations in the areas of neuropsychopharmacology and drug effects 
and is a Director on the Boards of the Dravet Syndrome Foundation and the American Society for Experimental 
Neurotherapeutics. She holds a Ph.D. in Neuropsychopharmacology from the University of Chicago. Dr. Farfel also holds a 
bachelor’s degree in Biochemistry from the University of Virginia. Dr. Farfel’s pharmaceutical industry experience relating to 
executive management, strategic planning, medical and scientific expertise and pharmaceutical industry experience as it relates 
to drug development and regulatory affairs are among the qualifications she brings to our Board of Directors.  
Peter S. Garcia, M.B.A. has served on our Board of Directors since December 2021. Mr. Garcia has worked as a Chief 
Financial Officer in the life sciences industry for over 30 years and raised over $2 billion in capital during that period. Since 
November 2024 he has been Chief Financial Officer of Bluejay Therapeutics. He served as the Chief Financial Officer of ALX 
Oncology Holdings Inc. (“ALX”) from January 2020 to November 2024 and led their initial public offering in July 2020 and follow on 
offering in December 2020. Prior to ALX, he served as Vice President and Chief Financial Officer from 2013 until 2019 at PDL 
BioPharma, Inc. (“PDL”), an acquirer of royalties and pharmaceutical assets. Before his time at PDL, Mr. García served as Chief 
Financial Officer at BioTime, Inc., a clinical-stage biotechnology company now known as Lineage Cell Therapeutics. He previously 
served as Chief Financial Officer of Marina Biotech, Nanosys, Nuvelo, Novacept, IntraBiotics Pharmaceuticals and Dendreon, and 
began his life science career at Amgen where he served in a number of financial roles of increasing responsibility. Mr. García 
holds an M.B.A. from the University of California, Los Angeles and a B.A. in Economics and Sociology from Stanford University. Mr. 
Garcia’s pharmaceutical industry experience relating to finance and accounting, executive management, treasury, employee 
benefits and audit matters are among the qualifications he brings to our Board of Directors.

 
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Gail J. Maderis, M.B.A. has served on our Board of Directors since January 2021 and as Chair of our Board of Directors 
since March 2023. Ms. Maderis has served as Chair of the board of Antiva Biosciences, Inc. (“Antiva”), a venture funded 
biopharma company developing topical therapies to treat the pre-cancerous lesions caused by human papillomavirus, since April 
2023. From 2015 to April 2023, Ms. Maderis served as President and Chief Executive Officer of Antiva. From 2009 to 2015, Ms. 
Maderis led BayBio, the industry organization representing and supporting Northern California’s life science community, as its 
President and Chief Executive Officer. From 2003 to 2009, Ms. Maderis served as President and Chief Executive Officer of Five 
Prime Therapeutics, Inc., a protein discovery and development company focused on immuno-oncology. Prior to FivePrime, Ms. 
Maderis held senior executive positions at Genzyme Corporation, including Founder and President of Genzyme Molecular 
Oncology. Ms. Maderis also practiced management and strategy consulting with Bain & Co. She currently serves on the boards of 
directors of Antiva and Valitor, Inc., as well as on the nonprofit boards of The Termeer Foundation and the University of California 
Berkeley Foundation Board of Trustees. Ms. Maderis previously served on the board of directors of Allarity Therapeutics, Inc. 
(“Allarity”) from July 2021 until January 2023 and on the board of directors of Allarity Therapeutics A/S, Allarity’s predecessor, 
since October 2020. She received a Bachelor of Science in business from the University of California at Berkeley and a Master of 
Business Administration from Harvard Business School. Ms. Maderis’ operational, industry and leadership experience in the 
biopharmaceutical industry as Chief Executive Officer of Five Prime Therapeutics, Inc., Founder and President of Genzyme 
Molecular Oncology and her current position at Antiva, and her insight into business and policy trends impacting the biopharma 
industry are among the qualifications she brings to our Board of Directors.
Judith J. Robertson has served on our Board of Directors since April 2019.  Since January 2022, Ms. Robertson has served 
as the Chief Commercial Officer of Opthea Limited (“Opthea”) and previously was the Chief Commercial Officer of Aerie 
Pharmaceuticals Inc. (“Aerie”) from December 2016 to December 2018, during which time she built the commercial organization 
and led the successful commercial launch of Rhopressa® (netarsudil) for glaucoma. Ms. Robertson joined Aerie from the Janssen 
Pharmaceutical Companies of Johnson & Johnson (“Janssen”), where she was the Vice President and Global Commercial Strategy 
Leader of Immunology, Ophthalmology, and Commercial Analytics from June 2013 to November 2016. Part of her duties at 
Janssen included evaluating all external licensing and acquisition opportunities. Prior to Janssen, she was Vice President Global 
Business Franchise Head of Ophthalmology at Novartis Pharma AG (“Novartis”) (f/k/a Alcon Laboratories, Inc.), Vice President 
Global Franchise Head of Respiratory at Novartis, Vice President of Sales & Marketing of Respiratory and Dermatology at Novartis, 
and President of Bristol Myers Squibb Canada Co. Ms. Robertson previously served on the board of directors of Opthea from June 
2021 to January 1, 2022. Ms. Robertson holds a Master of Management from the Kellogg School of Business at Northwestern 
University and holds a Bachelor of Arts in social science from Ryerson University. Ms. Robertson’s pharmaceutical industry 
experience relating to executive leadership experience with pharmaceutical companies and her expertise with respect to sales, 
marketing and commercialization of pharmaceutical products are among the qualifications she brings to our Board of Directors.
There are no family relationships among any of our directors or executive officers.
Code of Ethics
In December 2024, the Board approved an amended Code of Ethics applicable to all of our employees, officers and 
directors. The purpose of the Code of Ethics is to deter wrongdoing and, among other things, promote compliance with applicable 
laws, fair dealing, proper use and protection of our assets, prompt and accurate public company reporting, reporting of 
accounting complaints or concerns and avoidance of conflicts of interest and usurpation of corporate opportunities.
Our Code of Ethics can be found on our corporate website at www.durect.com under “Investors—Corporate Governance—
Documents & Charters.” If we make any substantive amendments to the Code of Ethics or grant any waiver from a provision of 
the Code of Ethics to any executive officer or director, we will promptly disclose the nature of the amendment or waiver by a 
method selected by the Board of Directors and in conformity with applicable SEC and Nasdaq rules.

 
122
Whistleblower Policy
In compliance with Section 301 of the Sarbanes-Oxley Act, the Audit Committee of the Board of Directors maintains 
procedures for the receipt, retention, and treatment of complaints received by us regarding accounting, internal accounting 
controls or auditing matters, and confidential, anonymous employee submissions of concerns regarding questionable accounting 
or auditing matters (“Whistleblower Policy”). In December 2024, the Board approved an amended Whistleblower Policy. Our 
Whistleblower Policy can be found on our corporate website at www.durect.com under “Investors—Corporate Governance—
Documents & Charters.”
Audit Committee
Audit Committee    The Audit Committee has been established in accordance with Section 3(a)(58)(A) of the Exchange Act. 
In accordance with its charter, the Audit Committee assists the Board in its general oversight of our financial reporting, internal 
controls and audit functions, and is directly responsible for the appointment, retention, compensation and oversight of the work 
of our independent registered public accounting firm. At the end of the last fiscal year, the Audit Committee was composed of the 
following directors: Peter S. Garcia, Gail J. Maderis and Judy J. Robertson. Mr. Garcia has served as Chair of the Audit Committee 
since June 2023.
Among other matters, the Audit Committee monitors the activities and performance of our external auditors, including the 
audit scope, external audit fees, auditor independence matters and the extent to which the independent registered public 
accounting firm may be retained to perform non-audit services. Our independent registered public accounting firm, 
WithumSmith+Brown, PC (“Withum”), provides the Audit Committee with the written disclosures and the letter required by 
applicable requirements of the Public Company Accounting Oversight Board regarding the independent accountant’s 
communications with the Audit Committee concerning independence, and the Audit Committee discusses with the independent 
registered public accounting firm and management that firm’s independence.
In accordance with Audit Committee policy and the requirements of law, all services to be provided by Withum are pre-
approved by the Audit Committee. Pre-approval includes audit services, audit-related services, tax services and other services. In 
its pre-approval and review of non-audit service fees, the Audit Committee considers, among other factors, the possible effect of 
the performance of such services on the auditor’s independence. To avoid certain potential conflicts of interest in maintaining 
auditor independence, the law prohibits a publicly traded company from obtaining certain non-audit services from its auditing 
firm.
As required by Nasdaq rules, the members of the Audit Committee each qualify as “independent” under special standards 
established for members of audit committees. The Audit Committee also includes at least one member who has been determined 
by the Board to meet the qualifications of an “audit committee financial expert” in accordance with SEC rules. Peter S. Garcia has 
been determined by the Board of Directors to be “audit committee financial experts.”  Stockholders should understand that this 
designation is a disclosure requirement of the SEC related to Mr. Garcia’s experience and understanding with respect to certain 
accounting and auditing matters. The designation does not impose upon Mr. Garcia any duties, obligations or liability that are 
greater than are generally imposed on either of them as members of the Audit Committee and the Board, and their designation 
as an audit committee financial expert pursuant to this SEC requirement does not affect the duties, obligations or liability of any 
other member of the Audit Committee or the Board.
Insider Trading, Hedging and Stock Ownership Policies
We have adopted an Insider Trading Policy governing the purchase, sale, and other dispositions of our securities by our 
directors, officers, employees and other individuals associated with us that we believe is reasonably designed to promote 
compliance with insider trading laws, rules and regulations, and listing standards applicable to us. Our insider trading policy 
provides that all officers and employees 

 
123
of the Company, all members of the Board, and any consultants and contractors to the Company that the Company designates, 
as well as, to the extent controlled by or benefiting any of the foregoing persons, members of the immediate families (spouse, 
parents, grandparents, children, grandchildren and siblings, including any such relationships that arise through marriage or 
adoption) sharing a household with the officer, employee, director, consultant or contractor, and any other member of the 
households of persons directly subject to this Policy, and family trusts (or similar family entities) may not engage in any 
transactions that suggest speculation in our stock (that is, an attempt to profit in short-term movements, either increases or 
decreases, in the stock price). The policy notes that many “hedging” transactions, such as “collar” transactions, contingent or 
forward sales, and other similar or related arrangements, are prohibited. Specifically, our insider trading policy precludes any 
employee or Officer from engaging in any “short” sale, “sale against the box” or any equivalent transaction involving our stock 
(or the stock of any of our business partners in any of the situations described above). A copy of our Insider Trading Policy is filed 
as Exhibit 19.1 to this Annual Report on Form 10-K.
We do not have a stock ownership policy.
Delinquent Section 16(A) Reports
Section 16(a) of the Exchange Act requires our directors, executive officers and any persons who own more than 10% of our 
common stock to file initial reports of ownership and reports of changes in ownership with the SEC. Based solely on our review of 
the copies of such forms filed with the SEC and written representations from the directors and executive officers, we believe that 
all Section 16(a) filing requirements were timely met in the year ended December 31, 2024 except as otherwise disclosed in our 
previous filings with the SEC, with the following exception: a late (due to an administrative error) Form 4 filing for one transaction 
that was made on behalf of Dr. Norman Sussman immediately upon such finding on September 11, 2024.

 
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Item 11. Executive Compensation. 
Compensation Discussion and Analysis
The Compensation Committee (for purposes of this analysis, the “Committee”) of the Board has responsibility for 
establishing, implementing and continually monitoring adherence with our compensation practices. The Committee makes all 
decisions regarding the compensation of our Chief Executive Officer (our “CEO”) and Chief Financial Officer (our “CFO”), as well 
as the other individuals included in the Summary Compensation Table below (together with our CEO and CFO, our “Named 
Executive Officers”) and all of our Vice Presidents. In this proxy, we refer to those persons as our “Officers.”
Philosophy and Elements
All of our compensation programs are designed to attract and retain key employees, motivating them to achieve corporate 
and individual objectives and rewarding them appropriately for their performance. Different programs are geared to short and 
longer-term performance with the goal of increasing stockholder value over the long term. Executive compensation programs 
impact all employees by setting general levels of compensation and helping to create an environment of goals, rewards and 
expectations. Because we believe the performance of every employee is important to our success, we consider the effect of 
executive compensation and incentive programs on all of our employees.
We believe that the compensation of our Officers should reflect the extent of their success as a management team and in 
addition, their individual performance in attaining key operating objectives, such as advancing our product pipeline, entering into 
strategic collaborative agreements and maintaining our financial strength, and ultimately, increasing stockholder value. We 
believe that the performance of our Officers in managing the Company, considered in light of general economic and specific 
Company, industry and competitive conditions, should be the basis for determining their overall compensation. We also believe 
that their compensation should not be based on the short-term performance of our stock, whether favorable or unfavorable, but 
rather that the price of our stock will, in the long-term, reflect our operating performance, and ultimately, the management of the 
Company by our Officers. We seek to have the long-term performance of our stock reflected in executive compensation through 
our stock option and other equity incentive programs.
Elements of compensation for our executives include: salary, bonus, stock incentive awards and perquisites. We choose to 
pay each element of compensation to our executives in order to attract and retain the necessary executive talent, reward 
performance and provide incentive for their balanced focus on long-term strategic goals as well as short-term performance. The 
amount of each element of compensation is determined by or under the direction of the Committee, which uses the following 
factors to determine the amount of salary and other benefits to pay each executive:
•
performance against corporate and individual objectives for the previous year;
•
value of their unique skills and capabilities to support our long-term performance;
•
performance of their general management responsibilities;
•
contribution as a member of our executive management team;
•
difficulty of achieving desired results in the coming year and years to follow; and
•
compensation paid by companies deemed by the Committee to be comparable to us.

 
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These elements fit into our overall compensation objectives by helping to secure the future potential of our products and 
operations, continuing to meet our business objectives, providing proper compliance and regulatory guidance, and helping to 
create an effective and cohesive team. Our policy for allocating between long-term and currently paid compensation is to ensure 
adequate base compensation to attract and retain personnel, while providing incentives to maximize long-term value for us and 
our stockholders. Likewise, we provide cash compensation in the form of base salary to meet competitive salary norms and 
reward performance on an annual basis and in the form of bonus compensation to reward superior performance against specific 
annual goals. We provide non-cash compensation (i.e., stock options) to reward superior performance against specific objectives 
and long-term strategic goals. Our compensation package for our Named Executive Officers for fiscal year 2024 ranged from 42% 
to 72% in cash compensation and 28% to 58% in non-cash compensation, including benefits and equity-related awards. We 
believe that this structure is competitive within the marketplace and appropriate to fulfill our stated policies. There is no pre-
established policy or target for the allocation between either cash and non-cash or short-term and long-term incentive 
compensation. Rather, the Committee reviews information from relevant peer companies, and such other information as it 
considers appropriate, to determine the appropriate level and mix of incentive compensation.
Setting Officer Compensation
Process
At one or more meetings at the end of each fiscal year (usually in December) or early in the following fiscal year (usually in 
January or February), the Committee reviews our performance during the fiscal year against established corporate objectives, 
individual Officer performance and history of all the elements of each Officer’s total compensation in comparison with the 
compensation of executive officers in an appropriate peer group as described below. After due consideration of the foregoing, the 
Committee:
•
sets the base salaries for our Officers for the following fiscal year;
•
approves individual Officer bonus payments for performance for the prior fiscal year;
•
approves stock options that will be granted to each Officer for performance for the prior fiscal year;
•
adopts the management incentive plan (including objectives and weighting) for the following fiscal year; and
•
decides upon general compensation guidelines and overall salary, bonus and stock option budgets for all employees.
The specific basis for the determination of base salaries, bonuses and stock option grants to Officers is detailed below.
Role of Executive Officers
The CEO annually reviews the performance of each Officer (other than his own performance, which is reviewed by the 
Committee) with the assistance and input from our head of Human Resources. The conclusions reached and recommendations 
made based on these reviews, including with respect to salary adjustments and annual award amounts, are presented to the 
Committee. Officers, other than the CEO, are not present at the time of these deliberations. The Committee can exercise its 
discretion in modifying any recommended adjustments or awards to executives and ultimately makes the final decision with 
respect to the compensation of all our Officers. The CEO is not present during the Committee’s deliberations and discussion on 
their individual compensation.

 
126
Benchmarking
To assist the Committee in benchmarking executive compensation in 2023, the Committee retained Larry Setren & 
Associates, an independent compensation consulting firm, to collect and synthesize data from several sources as detailed below.
The Committee reviewed compensation information as reported in the definitive proxies for fiscal year 2022 from the 
following public life sciences companies: 89bio, Axcella, Atreca, Cymabay Therapeutics, CytomX Therapeutics, Eiger Biopharma, 
Gritstone bio, Harpoon Therapeutics, Magenta Therapeutics, Ovid Therapeutics, Spero Therapeutics, Surrozen, Syros 
Pharmaceuticals, Unity Biotechnology and Viking Therapeutics (the “Peer Companies”). The Committee selected the Peer 
Companies as a relevant comparison group for us based on various criteria including similarity of business, employee headcount, 
market capitalization and revenue, and reviewed the proposed Peer Companies with Larry Setren & Associates for 
appropriateness as a comparison group. Where such source did not provide sufficient information with respect to the bonus and 
equity compensation of certain officer positions, the Committee used compensation information from The Radford Global Life 
Sciences Survey (2022) (the “2022 Radford Survey”) as a supplement. The Committee took into consideration the summarized 
compensation data from the Peer Companies along with the data from the 2022 Radford Survey when setting base salaries 
applicable for fiscal year 2024 and determining the cash bonus opportunities and stock option awards for our Officers for fiscal 
year 2024.
Base Salary
It is the goal of the Committee to establish salary compensation for our Officers that is competitive with comparable peer 
companies. In setting Officer base salaries for fiscal year 2024 (which were set in July 2023), the Committee reviewed the salary 
compensation of officers with comparable qualifications, experience and responsibilities as reported in the 2022 Radford Survey 
and definitive proxies of the Peer Companies. It is not our policy to pay our CEO or other Officers at the highest level relative to 
their respective counterparts at the Peer Companies. In setting target compensation for our Officers, the Committee uses as a 
reference point the 50th percentile of compensation paid to similarly situated executives at the Peer Companies. Variations to 
this objective may occur as dictated by the experience and performance level of the individual and market factors. We believe 
that this gives us the opportunity to attract and retain talented managerial employees both at the senior executive level and 
below, yet conserves our financial resources, to the benefit of our stockholders.
The following table summarizes the annual base salary rates of our Named Executive Officers at fiscal year-end in 2024 
compared to 2023. There were no salary increases to the Officers in 2024.
 
Name
 
2024
Base Salary ($)
  
2023
Base Salary ($)
 
James E. Brown
  
597,914    
597,914  
Timothy M. Papp
  
431,600    
431,600  
Norman L. Sussman
  
429,865    
429,865  
 
 
   
  
 
Bonus (Non-Equity Incentive Plan Compensation)
The cash bonus element of our executive compensation is designed to reward our Officers for the achievement of shorter-
term corporate goals, measurable on an annual basis, as well as, with certain exceptions noted below for the CEO, individual 
Officer performance. Our general process for determining the bonus element of our Officer compensation for fiscal year 2024 
performance is set forth below.
In setting the target bonus for which each Officer would be eligible for fiscal 2024 performance, the Committee reviewed 
the bonuses of officers with comparable qualifications, experience and responsibilities at companies as reported in the 2022 
Radford Survey and definitive proxies of the Peer Companies. 

 
127
For performance in fiscal year 2024, the Committee set the target bonus for the CEO at 60% of such individual’s base 
notional salary, and for all other Officers at 30%–40% of such individual’s base notional salary. The two factors used by the 
Committee to determine the percentage of the target amount to be awarded to any individual Officer other than the CEO are the 
individual performance of such Officer during the relevant fiscal year and the Company’s performance as a whole against pre-set 
corporate objectives for fiscal year 2024 (the “Corporate Objectives”). The Committee retains the discretion to adjust actual 
bonus payments based on other factors, as discussed below.
The Corporate Objectives for each fiscal year are typically established by the Committee in consultation with our Officers in 
the first quarter of such fiscal year. The Corporate Objectives comprise product development, financial, business development 
and operational goals with varying degrees of difficulty and have associated target dates for accomplishment. Each objective is 
weighted based on its importance to the accomplishment of the Company’s plans. At the end of each fiscal year, the Committee 
makes a determination of the overall percentage of the Corporate Objectives accomplished by the Company as a whole during 
the fiscal year. The Committee exercises its reasonable discretion in determining the percentage of Corporate Objectives 
accomplished by the Company, including, for example, taking into account the achievement of any listed objective above 
expectations or the accomplishments of the Company that were not listed in the Corporate Objectives.
For fiscal year 2024, the Corporate Objectives against which Officer performance was evaluated consisted of, among 
others, the following goals. 
 
•
Financial
o
The principal financial goals were to operate within the approved corporate budget, meet revenue and cash 
contribution targets for the ALZET® product line and obtain financing commitments or other capital resources to 
fund the Company through Phase 3 topline data for larsusocosterol. 
•
Product Development of Larsucosterol and Research and Development
o
The primary goals related to initiating the Phase 3 trial. 
The Committee believes that the accomplishments of the Company as a whole are an important measure of the 
performance of all of our Officers, including the effectiveness of their leadership and teamwork. In particular, the percentage of 
the total eligible amount that is normally awarded to the CEO as a bonus is based entirely on the Company’s overall performance 
and accomplishment of the Corporate Objectives because the Committee believes that the paramount duty of this individual is 
leadership. Thus, the bonus awarded to the CEO for a fiscal year  is typically computed by multiplying the percentage determined 
by the Committee based on Corporate Objectives accomplished and the Company’s overall performance by 60% of the CEO base 
salary (the target bonus amount that he is eligible to receive as set by the Committee). 
For a fiscal year, the Committee typically applies a weighting of Corporate Objectives (80% for Vice Presidents; 90% for 
Senior Vice Presidents; and 95% for the Chief Financial Officer, Chief Medical Officer and Executive Vice Presidents) and applies a 
weighting of individual performance (20% for Vice Presidents; 10% for Senior Vice Presidents; and 5% for the Chief Financial 
Officer, Chief Medical Officer and Executive Vice Presidents) for Officers other than the CEO.

 
128
The individual performance of each Officer, except for the CEO, is assessed as part of an annual written performance 
appraisal performed typically at the end of each fiscal year. At the end of each fiscal year or early in the following fiscal year, 
each Officer, together with his or her supervisor (e.g., the CEO), agrees upon a written set of objectives for the following fiscal 
year pertinent to the Officer individually (which includes goals for the functional area or business managed by such Officer). The 
supervisor also assesses the accomplishments of the Officer in the most recently completed fiscal year against the applicable 
pre-established objectives for that Officer in such year, and arrives at a percentage of goals accomplished. Thus, the bonus of 
each Officer other than the CEO is typically determined as follows:
Bonus Amount = (A% * B% + C% * D%) * E% * Base Salary
A = the percentage (5%, 10% or 20%) of individual performance applicable to the Officer
B = the percentage of personal objectives accomplished by the Officer as determined by the Officer’s supervisor
C = the percentage (80%, 90% or 95%) of weighting of Corporate Objectives
D = the percentage of Corporate Objectives accomplished and overall performance by the Company as determined by the 
Committee
E = the percentage (30%, 35% or 40%) of the base salary set as the maximum bonus target applicable to the Officer
Notwithstanding the general practice with respect to determination of Officer bonuses set forth above, the Committee 
retains complete discretion to adjust the result obtained using the general approach for individual variations in performance or 
business considerations.
The Board tracked performance against these corporate goals throughout fiscal year 2024.  At the end of the year, the 
Committee determined that no corporate bonuses would be paid to all employees (including our Named Executive Officers) 
relative to 2024 performance, and thus did not come to a formal determination of the exact percentage of corporate goals that 
had been achieved.
The total calculated bonus award for the Named Executive Officers for 2024 are set forth in the table below. 
 
 
 
Annual Incentive
Opportunity
  
Actual
 
Name
 
2024
Base Salary ($)
  
Target
(as % of base salary)
  
Target ($)
  
2024
Earned Award ($)
 
James E. Brown
  
597,914    
60 %   
358,748    
—  
Timothy M. Papp
  
431,600    
40 %   
172,640    
—  
Norman L. Sussman
  
429,865    
40 %   
171,946    
—  
Equity Incentive Program
We intend that our equity incentive program is the primary vehicle for offering long-term incentives and rewarding our 
Officers and key employees. We also regard our equity incentive program as a key retention tool. This is a very important factor 
in our determination of the type of award to grant and the number of underlying shares that are granted in connection with that 
award. Because of the direct relationship between the value of an option and the market price of our common stock, we have 
always believed that granting stock options is the best method of motivating our Officers to manage the Company in a manner 
that is consistent with our interests and those of our stockholders. It is our typical practice to grant stock options to our Officers 
and all employees annually in connection with our annual employee performance appraisal.

 
129
At the same meeting(s) during which the Committee determines our Officer base salaries for the following fiscal year and 
bonuses for performance in the previous fiscal year, the Committee also determines the ranges of stock options for which our 
Officers are eligible by rank. The Committee sets these ranges after consideration of (a) the value of equity incentive awards of 
officers with comparable qualifications, experience and responsibilities at the then-current peer companies, (b) the dilution that 
would be created by the stock options awards for that fiscal year (the “Burn Rate”), (c) the overall value of equity held by our 
employees as a retention incentive, and (d) the Company’s prior year performance. The Committee’s general philosophy is that 
the value of our equity incentive awards to our Officers should be competitive with the then-current peer companies subject to 
the Company maintaining a Burn Rate for its equity incentive programs that is not overly dilutive to our stockholders and 
comparable to other companies in the then-current peer group.
In determining the annual grant amounts of stock options to our employees and Officers, the Committee considers a review 
of market data for comparable positions and each individual’s accumulated vested and unvested awards, current and potential 
realizable value over time using stock appreciation assumptions, vesting schedules, comparison of individual awards between 
Officers and in relation to other compensation elements, stockholder dilution and accounting expense, and corporate 
performance as well as each individual’s performance. The factors used by the Committee to determine the specific number of 
shares underlying any stock option grant to any individual Officer other than the CEO include the individual performance of such 
Officer during the prior fiscal year and the performance of the Company as a whole against the Corporate Objectives. The specific 
number of shares underlying the stock option grants to our CEO is determined based on the performance of the Company as a 
whole against the Corporate Objectives and may include a review of option grants by Peer Companies.
For our annual stock option grant, which occurred on October 14, 2024, the Committee targeted a Burn Rate (computed as 
total shares subject to the annual option grants to all employees including Officers for the 2024 fiscal year divided by total 
outstanding shares as of December 31, 2023) of approximately 4.1%.
In addition to annual grants, our Board of Directors and Committee may grant equity compensation to our Officers and 
employees at any time for incentive and retention purposes in keeping with our non-cash equity compensation practices.
On July 26, 2024, pursuant to the recommendation of the Committee, the Board of Directors approved a restricted stock 
unit (“RSU”) grant of 275,000 shares of common stock to Mr. Papp.
Policies and Practices Related to the Grant of Certain Equity Awards Close in Time to the Release of Material 
Nonpublic Information
Our executive officers are not permitted to choose the grant date for their individual stock option grants. Stock option 
grants to our employees, including our executive officers, are generally made annually at a meeting of the Committee that is held 
during the first quarter of each year (after the conclusion of our annual Company-wide performance appraisal of all employees for 
the previous fiscal year), and the grants are effective on the date of the meeting (or on the next trading day following such date if 
it is not a trading day). Additionally, non-employee directors generally receive grants of initial and annual equity awards, at the 
time of a director’s initial appointment or election to the board and at the time of each annual meeting of our stockholders, 
respectively, as further described under the heading, “Director Compensation” above.
We do not otherwise maintain any written policies on the timing of awards of stock options or similar instruments with 
option-like features. The Compensation Committee considers whether there is any material nonpublic information about our 
Company when determining the timing of stock option grants and does not seek to time the award of stock options in relation to 
our Company’s public disclosure of material nonpublic information. During fiscal year 2024, we did not time the disclosure of 
material nonpublic information for the purpose of affecting the value of executive compensation. In addition, 

 
130
during fiscal year 2024, none of our Named Executive Officers were awarded options with an effective grant date during any 
period beginning four business days before the filing or furnishing of a Form 10-Q, Form 10-K, or Form 8-K that disclosed material 
nonpublic information (other than a Form 8-K that disclosed a material new option award grant under Item 5.02(e)), and ending 
one business day after the filing or furnishing of such reports.
Post-Employment Compensation
Pension Benefits
We do not provide pension arrangements or post-retirement health coverage for our executives or employees. Our 
executive officers, as with all eligible employees, are eligible to participate in our 401(k) plan. We do not provide matching 
contributions for any of our employees including our Officers.
Nonqualified Deferred Compensation
We do not provide any nonqualified deferred contribution or other deferred compensation plans.
Other Post-Employment Payments
All of our employees, including our Officers, are employees-at-will and as such do not have employment contracts with us. 
We also do not provide post-employment health coverage or other benefits, except in connection with the change of control 
agreements, details of which are included below under “Change of Control Agreements.” 
Anti-Hedging Policy
Our insider trading policy provides that all officers and employees of the Company, all members of the Board, and any 
consultants and contractors to the Company that the Company designates, as well as, to the extent controlled by or benefiting 
any of the foregoing persons, members of the immediate families (spouse, parents, grandparents, children, grandchildren and 
siblings, including any such relationships that arise through marriage or adoption) sharing a household with the officer, 
employee, director, consultant or contractor, and any other member of the households of persons directly subject to the policy, 
and family trusts (or similar family entities) may not engage in any transactions that suggest speculation in our stock (that is, an 
attempt to profit in short-term movements, either increases or decreases, in the stock price). The policy notes that many 
“hedging” transactions, such as “collar” transactions, contingent or forward sales, and other similar or related arrangements, are 
prohibited. Specifically, our insider trading policy precludes any employee or Officer from engaging in any “short” sale, “sale 
against the box” or any equivalent transaction involving our stock (or the stock of any of our business partners in any of the 
situations described above).
Compensation Recovery Policy
In accordance with the final rules adopted by the SEC and Nasdaq implementing the incentive-based compensation 
recovery provisions of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”), in the event the 
Company is required to restate any of its financial statements that have been filed with the SEC, then the Compensation 
Committee will seek to recover any erroneously awarded performance-based incentive-based compensation (including any 
performance-based cash and equity awards and salary increases earned wholly or in part based on the attainment of financial 
performance goals) received by any person who is or was a Section 16 officer during the three-fiscal year recovery period.
Most Recent Advisory Vote on Executive Compensation
The Committee noted that at the 2024 Annual Meeting held on September 25, 2024, the Company’s executive 
compensation was approved on a non-binding, advisory basis based upon the following votes:
 
 
For
 
Against
  
Abstain
  
Broker Non-Vote
 
5,895,423
  
913,798    
234,524    
15,119,441  
 

 
131
 
The Board of Directors and the Committee reviewed these final vote results and determined that, given the significant level 
of support, no changes to our executive compensation philosophy, policies and decisions were necessary based solely on the 
vote results.
Tax and Accounting Implications
Deductibility of Executive Compensation
While Section 162(m) of the Internal Revenue Code of 1986, as amended, places a limit of $1 million on the amount of 
compensation that we may deduct as a business expense in any year with respect to certain of our executive officers, except 
with respect to certain grandfathered “performance-based” arrangements, the Committee retains the discretion to award 
compensation that is not deductible as it believes that it is in the best interests of our stockholders to maintain flexibility in our 
approach to executive compensation in order to structure a program that we consider to be the most effective in attracting, 
motivating and retaining key executives.
Accounting for Stock-Based Compensation
Stock-based compensation is estimated at the date of grant based on the stock award’s fair value using the Black-Scholes 
option-pricing model and is recognized as expense ratably over the requisite period in a manner similar to other forms of 
compensation paid to employees and directors. Our financial statements include more information regarding accounting for 
stock-based compensation.

 
132
COMPENSATION OF EXECUTIVE OFFICERS
The following table shows for the fiscal years ended December 31, 2024 and 2023, compensation awarded to or paid to, or 
earned by, our Chief Executive Officer and our other Named Executive Officers.
In 2024 and 2023, we did not grant any stock awards and we do not currently offer pension or nonqualified deferred 
compensation plans.
Summary Compensation Table for Fiscal 2024
 
Name and Principal Position  
Year
 
Salary
($)
  
Bonus
($)
  
Stock 
Awards
(1)($)
  
Option 
Awards
(2)($)
  
Non-Equity
Incentive 
Plan
Compensatio
n
(3)($)
  
All Other
Compensation
(4)($)
  
Total
($)
 
James E. Brown, D.V.M.
 
2024   
597,914  (5)
 
—    
—    
430,538    
—    
44,136    
1,072,588  
President and Chief 
Executive Officer
 
2023   
586,416   
 
—    
—    
812,320    
—    
47,048    
1,445,784  
 
 
  
   
   
   
   
   
   
  
Timothy M. Papp
 
2024   
431,600  (6)
 
—    
459,250    
126,291    
—    
4,316    
1,021,457  
Chief Financial Officer
 
2023   
423,300   
 
—    
—    
243,696    
—    
4,316    
671,312  
 
 
  
   
   
   
   
   
   
  
Norman L. Sussman
 
2024   
429,865  (7)
 
—    
—    
119,402    
—    
51,697    
600,964  
Chief Medical Officer
 
2023   
421,599   
 
—    
—    
182,772    
—    
50,107    
654,478  
 
 
  
   
   
   
   
   
   
  
 
(1)
Amounts in this column reflect the aggregate grant date fair value of RSUs granted in the applicable year as computed in 
accordance with FASB ASC Topic 718. These amounts reflect our accounting expense for these stock awards and do not 
represent the actual economic value that may be realized by each Named Executive Officer. There can be no assurance 
that these amounts will ever be realized. For more information, please see Note 9 of the financial statements in our Annual 
Report on Form 10-K for the year ended December 31, 2024 regarding assumptions underlying the valuation of equity 
awards.
(2)
Amounts in this column reflect the aggregate grant date fair value of stock options granted in the applicable year as 
computed in accordance with FASB ASC Topic 718. The grant date fair value of the options was determined using the Black-
Scholes option pricing model based on the fair market value on the date of grant. These amounts reflect our accounting 
expense for these stock options and do not represent the actual economic value that may be realized by each Named 
Executive Officer. There can be no assurance that these amounts will ever be realized. For more information, please see 
Note 9 of the financial statements in our Annual Report on Form 10-K for the years ended December 31, 2023 and 2024 
regarding assumptions underlying the valuation of equity awards.
(3)
There were no bonuses awarded to our Named Executive Officers relative to their 2023 and 2024 performance.
(4)
Includes amounts associated with insurance premiums we pay for Accidental Death and Dismemberment, Life, Medical, 
Dental, Vision, short-term and long-term disability insurance and medical insurance waiver incentives.
(5)
Dr. Brown’s salary increased from $574,918 to $597,914 effective July 1, 2023. There was no salary increase for Dr. Brown 
in 2024.
(6)
Mr. Papp’s salary increased from $415,000 to $431,600 effective July 1, 2023. There was no salary increase for Mr. Papp in 
2024.
(7)
Dr. Sussman’s salary increased from $413,332 to $429,865 effective July 1, 2023.  There was no salary increase for Dr. 
Sussman in 2024.

 
133
OUTSTANDING EQUITY AWARDS AT FISCAL YEAR—EXECUTIVE OFFICERS
The following table shows for the fiscal year ended December 31, 2024, certain information regarding outstanding stock 
awards and option awards at fiscal year-end for our Named Executive Officers. All options and RSUs were granted under our 2000 
Stock Plan.
Outstanding Equity Awards at December 31, 2024
 
Name
 
Number of
Securities
Underlying
Unexercised
Options (#)
Exercisable
  
Number of
Securities
Underlying
Unexercised
Options (#)
Unexercisable
  
Equity
Incentive
Plan Awards:
Number of
Securities
Underlying
Unexercised
Unearned
Options (#)
  
Option
Exercise
Price ($)
  
Option
Grant Date
 
Option
Expiration
Date (1)
 
Number of
shares or
units of 
stock
that have
not vested
 (#)
Market value 
of
shares or
units of 
stock
that have
not vested
 ($)
James E. Brown
  
24,999    
—    
—    
8.80   
1/09/2015(4)  
1/09/2025  
 
 
 
  
3,703    
—    
—    
17.50   
3/26/2015(5)  
3/26/2025  
 
 
 
  
19,999    
—    
—    
11.60   
1/28/2016(4)  
1/28/2026  
 
 
 
  
4,807    
—    
—    
13.50   
3/31/2016(5)  
3/31/2026  
 
 
 
  
16,720    
—    
—    
11.60   
1/28/2016(3)  
1/28/2026  
 
 
 
  
14,567    
—    
—    
13.10   
1/9/2017(3)  
1/9/2027  
 
 
 
  
22,499    
—    
—    
13.10   
1/9/2017(4)  
1/9/2027  
 
 
 
  
4,717    
—    
—    
14.00   
6/19/17(5)  
6/19/2027  
 
 
 
  
18,821    
—    
—    
12.40   
1/26/2018(3)  
1/26/2028  
 
 
 
  
24,999    
—    
—    
12.40   
1/26/2018(4)  
1/26/2028  
 
 
 
  
22,175    
—    
—    
5.77   
1/23/2019(3)  
1/23/2029  
 
 
 
  
14,999    
—    
—    
5.77   
1/23/2019(4)  
1/23/2029  
 
 
 
  
22,499
   
—    
—    
21.10
  
1/21/2020(4)  
1/21/2030  
 
 
 
  
19,593    
1,306    
—    
20.30   
1/15/2021(4)  
1/15/2031  
 
 
 
  
65,731    
29,879    
—    
8.71   
1/6/2022(4)  
1/6/2032  
 
 
 
  
50,665    
—    
—    
5.07   
2/21/2023(3)  
2/21/2033  
 
 
 
  
87,500    
112,500    
—    
5.07   
2/21/2023(4)  
2/21/2033  
 
 
 
  
—    
—    
250,000    
3.32   
8/23/2023(7)  
8/23/2033  
 
 
 
  
—    
375,000    
—    
1.30   
10/14/2024(4)  
10/14/2034  
 
 
Timothy M. Papp
  
33,750    
26,250    
—    
4.52   
7/1/2022(2)  
7/1/2032  
 
 
 
  
12,377    
—    
—    
5.07   
2/21/2023(3)  
2/21/2033  
 
 
 
  
26,250    
33,750    
—    
5.07
  
2/21/2023(4)  
2/21/2033  
 
 
 
  
—    
—    
50,000    
3.32   
8/23/2023(7)  
8/23/2033  
 
 
 
  
—    
110,000    
—    
1.30   
10/14/2024(4)  
10/14/2034  
 
 
 
 
   
   
   
   
  
  
275,000 (8)
206,250 (9)
 
 
   
   
   
   
  
  
 
 
Norman L. Sussman
  
20,000    
—    
—    
17.70   
11/2/2020(2)  
11/2/2030  
 
 
 
  
—    
—    
5,000    
17.70   
11/2/2020(7)  
11/2/2030  
 
 
 
  
9,375    
625    
—    
20.30   
1/15/2021(4)  
1/15/2031  
 
 
 
  
27,388    
12,449    
—    
8.71   
1/6/2022(4)  
1/6/2032  
 
 
 
  
24,557    
—    
—    
5.07   
2/21/2023(3)  
2/21/2033  
 
 
 
  
19,687    
25,313    
—    
5.07   
2/21/2023(4)  
2/21/2033  
 
 
 
  
—    
—    
50,000    
3.32   
8/23/2023(7)  
8/23/2033  
 
 
 
  
—    
104,000    
—    
1.30   
10/14/2024(4)  
10/14/2034  
 
 
 
(1)
The original term of these option grants is 10 years from the date of grant.
(2)
The vesting schedule associated with these option grants is as follows: one-fourth (1/4) of the total shares subject to such 
option shall vest on the one-year anniversary of the date of grant, and one-sixteenth (1/16) of the total shares subject to 
the option shall vest quarterly over three years following the one-year anniversary, subject to continued service on each 
applicable vesting date.
(3)
The vesting schedule associated with these option grants is as follows: 100% of the total shares subject to such option 
vested on the date of grant.

 
134
(4)
The vesting schedule associated with these option grants is as follows: one-sixteenth (1/16) of the total shares subject to 
the option shall vest quarterly over four years following the date of grant, subject to continued service on each applicable 
vesting date.
(5)
The vesting schedule associated with these option grants is as follows: one-fourth (1/4) of the total shares subject to the 
option shall vest quarterly over one year following the date of grant, subject to continued service on each applicable 
vesting date.
(6)
The vesting schedule associated with the option grant is as follows: one forty-eighth (1/48) of the total shares subject to the 
option shall vest monthly over four years following the date of grant, subject to continued service on each applicable 
vesting date.
(7)
The vesting schedule associated with these option grants is as follows: the performance-based stock option grants will vest 
upon meeting certain specified development and regulatory milestones within specified time frames related to larsucosterol 
for severe AH, with such vesting also subject to the optionee providing continuous service to the Company through the date 
of the applicable vesting event.
(8)
The vesting schedule associate with the RSU grant is as follows: the RSUs vested as to 50% of the total number of shares 
on January 26, 2025, and the remaining 50% of the total number of shares will vest on July 26, 2025, subject to continued 
service on each applicable vesting date.
(9)
Each RSU represents the right to receive a share of our common stock. The market value of our common stock is based on 
the per share price of $0.75, which was the closing stock price of the Company’s common stock on December 31, 2024, the 
last trading day of the fiscal year 2024.

 
135
CHANGE OF CONTROL AGREEMENTS
We maintain a change of control policy applicable to our Officers who hold the rank of Vice President and above (who are 
not party to any other change of control agreement with us) which provides that, in the event that such Officer’s employment is 
terminated without cause or constructively terminated, in connection with and prior to a change in our control, or within 24 
months following a change in our control, then: (1) the unvested portion of any stock options or stock awards held by such Officer 
shall automatically accelerate so as to become completely vested as of the effective date of the termination, and (2) such Officer 
shall receive a lump sum cash payment equal to one year of such Officer’s then current notional salary, provided that such cash 
payment will be equal to two years of such Officer’s then current notional salary in the case of Dr. Brown. 
The change of control policy provides any such severance benefits are conditioned upon such Officer delivering to us an 
effective release of claims against us, complying with certain non-disparagement covenants, and cooperating with the Company 
in order to ensure an orderly transfer of his or her duties and responsibilities. If the Officer breaches any of these requirements, 
the Company will have no further obligation to pay to the Officer any benefit under the policy, and the Officer will be obligated to 
repay to the Company all benefits previously paid to, or on behalf of, the Officer under the policy. 
The policy contains a “better after-tax” provision, which provides that if any of the payments to an executive constitutes a 
parachute payment under Code Section 280G, the payments will either be (i) reduced or (ii) provided in full to the executive, 
whichever results in the executive receiving the greater amount after taking into consideration the payment of all taxes, 
including the excise tax under Code Section 4999. 
Had a change of control occurred during fiscal 2024 and had their employment been terminated on December 31, 2024, 
our Named Executive Officers would have been eligible to receive the payments set forth in the columns under the heading 
“Terminations Within 24 Months of a Change of Control” in the table below without taking into account the impact of the “better 
after-tax” provision.
 
Terminations Within 24 Months of a Change of Control
 
Name
 
Severance
Payments ($)
  
Value of
Accelerated
Unvested
Options
(1)($)
  
Value of
Accelerated
Unvested
Stock Awards
(2)($)
 
James E. Brown
  
1,195,828    
—    
—  
Timothy M. Papp
  
431,600    
—    
206,250  
Norman L. Sussman
  
429,865    
—    
—  
 
(1)
The value of accelerated vesting of the options is based solely on the excess, if any, of $0.75 per share, the closing 
market price of our common stock on December 31, 2024, over the exercise price of the unvested portion (as of 
December 31, 2024) of our Named Executive Officers’ stock options. Because many of our stock options have exercise 
prices higher than our current stock price, if our stock value was higher at the time of any actual termination of 
employment, additional stock options could have considerable value.
(2)
The value of accelerated vesting of stock awards is based on the closing market price of our common stock of $0.75 on 
December 31, 2024. Mr. Papp held 275,000 unvested RSUs on December 31, 2024 that would be subject to 
acceleration .   

 
136
DIRECTOR COMPENSATION
Overview of Compensation and Procedures
The Compensation Committee reviews the level of compensation of our non-employee directors on an annual basis. To 
determine how appropriate the current level of compensation for our non-employee directors is, we have historically obtained 
data from a number of different sources including:
•
publicly available data describing director compensation in peer companies;
•
survey data collected by our human resources department; and
•
information obtained directly from other companies.
We compensate non-employee members of the Board through a mixture of cash and equity-based compensation. Effective 
January 1, 2024, each non-employee director became eligible to receive a cash retainer fee equal to $40,000 per year in addition 
to annual cash retainer fees for serving on the following committees: (a) Audit Committee (retainer of $8,000 or $22,500 for the 
chairperson), (b) Compensation Committee (retainer of $6,000 or $15,000 for the chairperson), (c) Nominating and Corporate 
Governance Committee (retainer of $5,000 or $12,000 for the chairperson), and (d) Research and Development Committee 
($7,500 or $15,000 for the chairperson), (d) Research and Development Committee which was disbanded on July 12, 2024 
($7,500 or $15,000 for the chairperson), and (e) Transaction Committee (retainer of $8,000 for all members). The cash retainer 
fees are eligible to be paid on a quarterly basis in arrears. In connection with her appointment as the Chair of the Board, effective 
March 17, 2023, Ms. Maderis receives a cash retainer fee of $70,000 per year. 
All of our current non-employee directors are also eligible to receive stock option grants under our 2000 Stock Plan as part 
of their compensation for their service. Pursuant to the Compensation Committee’s most recent review of non-employee director 
compensation, when each non-employee director first became a director, he or she received nonstatutory options to purchase 
7,000 shares of our common stock . These options have a ten-year term and become exercisable in installments of one-third of 
the total number of shares granted on each anniversary of the grant. Additionally, each director who had served for at least 6 
months as of the date of our annual stockholder meeting in 2024 received options to purchase 5,500 additional shares of our 
common stock on the date of our annual stockholder meeting (Annual Grant), with such Annual Grant vesting on the day before 
the first anniversary of the date of grant of the Annual Grant. 
Options granted on or after June 24, 2013 may be exercised only (1) while the individual is serving as a director on the 
Board, (2) within 12 months after termination by death or disability or (3) within 24 months after the individual’s term as director 
ends for any other reason. In 2019, the Board extended the post termination exercise period of approximately 238,644 vested 
options held by non-employee directors who served on the Board for more than 10 years based on a policy adopted by the Board.  
The policy stipulated that upon retirement of any member of the Board who has served on the Board for at least 10 years prior to 
the effective date of such retirement, all options held by such directors shall continue to be exercisable until the earlier of (a) the 
termination date of such option or (b) 10 years after such director’s retirement date.
Employee directors receive no additional compensation for serving on our Board of Directors.
From January 1, 2024 to June 30, 2024, four directors (Dr. Azab, Dr. Farfel, Mr. Garcia and Ms. Maderis) voluntarily elected 
to forego receiving their director’s fees. Transaction Committee members (Dr. Azab, Dr. Farfel, Mr. Garcia and Ms. Maderis) 
voluntarily elected to receive their FY2024 committee fee in 2025. 

 
137
The following table sets forth certain information regarding the compensation of each non-employee member of our Board 
of Directors for the fiscal year ended December 31, 2024.
Director Compensation for Fiscal 2024 
 
Name
 
Fees
Earned
or Paid in
Cash ($)
  
Option
Awards
(1)($)
  
All Other
Compensation 
($)
  
Total ($)
 
Mohammad Azab, M.D., M. Sc., M.B.A.
  
25,742    
5,893    
—    
31,635  
Terrence F. Blaschke, M.D.
  
52,984    
5,893    
—    
58,877  
Gail M. Farfel, Ph.D.
  
23,242    
5,893    
—    
29,135  
Peter S. Garcia, M.B.A.
  
34,250    
5,893    
—    
40,143  
Gail J. Maderis, M.B.A.
  
46,500    
5,893    
—    
52,393  
Judith J. Robertson
  
60,000    
5,893    
—    
65,893  
 
(1)
Amounts in this column reflect the aggregate grant date fair value of stock options granted in the applicable year as 
computed in accordance with FASB ASC Topic 718. The grant date fair value of the options was determined using the Black-
Scholes option pricing model based on the fair market value on the date of grant. These amounts reflect our accounting 
expense for these stock options and do not represent the actual economic value that may be realized by each non-
employee director. There can be no assurance that these amounts will ever be realized. For more information, please see 
Note 9 of the financial statements in our Annual Report on Form 10-K for the year ended December 31, 2024 regarding 
assumptions underlying the valuation of equity awards. 
(2)
In September 2024, an option to purchase 5,500 shares of our common stock at $1.22 per share was granted under our 
2000 Stock Plan to each of the directors (with a fair value of $5,893 for each option grant).
The following table sets forth certain information regarding outstanding equity awards at December 31, 2024 of all of our 
non-employee directors:
 
 
 
Number of Securities
Underlying Unexercised
Options (#)
 
Name
 
Exercisable
  
Unexercisable
 
Mohammad Azab, M.D., M. Sc., M.B.A.
  
20,750    
5,500  
Terrence F. Blaschke, M.D.
  
49,656    
5,500  
Gail M. Farfel, Ph.D.
  
29,000    
5,500  
Peter S. Garcia, M.B.A.
  
18,000    
5,500  
Gail J. Maderis, M.B.A.
  
20,750    
5,500  
Judith J. Robertson
  
29,000    
5,500  
 

 
138
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters. 
 
COMMON STOCK OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
The following table presents information concerning the beneficial ownership of the shares of our common stock as of 
March 25, 2025 by:
•
each stockholder whom we know to beneficially own more than 5% of our common stock;
•
each of our directors;
•
each of our Named Executive Officers; and
•
all of our directors and executive officers as a group.
Beneficial ownership is determined under the rules and regulations of the SEC. Shares of common stock subject to options, 
warrants and conversion privileges that are currently exercisable or exercisable within 60 days of March 25, 2025 are deemed to 
be outstanding and beneficially owned by the person holding such options, warrants or convertible securities for the purpose of 
computing the number of shares beneficially owned and the percentage ownership of that person, but are not deemed to be 
outstanding for the purpose of computing the percentage ownership of any other person. Except as indicated in the footnotes to 
this table, and subject to applicable community property laws, these persons have sole voting and investment power with respect 
to all shares of our common stock shown as beneficially owned by them.
The number and percentage of shares beneficially owned are based on 31,041,981 shares of common stock outstanding as 
of March 25, 2025. Except as otherwise noted, the address of each person listed in the table is c/o DURECT Corporation, 10240 
Bubb Road, Cupertino, California 95014.
 
Name of Beneficial Owners
 
Amount
and Nature
of Beneficial
Ownership
  
Percent
of Common
Stock
 
Holders of 5% or more of our common stock
 
   
 
 
Asen and Co. (1)
  
3,080,000    
9.9 %
Ingalls & Snyder, LLC (2)
  
2,681,770    
8.5 %
Directors and Named Executive Officers
 
   
 
 
James E. Brown, D.V.M. (3)
  
679,876    
2.2 %
Timothy M. Papp (4)
  
238,627   
*
 
Norman L. Sussman (5)
  
125,239   
*
 
Mohammad Azab, M.D., M. Sc., M.B.A. (6)
  
26,750   
*
 
Gail M. Farfel, Ph.D. (7)
  
39,000   
*
 
Peter S. Garcia, M.B.A. (8)
  
22,667   
*
 
Gail J. Maderis, M.B.A. (9)
  
40,750   
*
 
Judith J. Robertson (10)
  
64,613   
*
 
All executive officers and directors as a group
   (8 persons) (11)
  
1,237,522    
3.9 %
 
 
* Represents beneficial ownership of less than 1% of the outstanding shares of our common stock.
(1)
Based upon a Schedule 13G/A filed by Asen and Co. on January 8, 2025. Asen and Co. is deemed to be the beneficial owner 
with sole voting and dispositive power over 2,580,000 shares of our common stock and shared voting and dispositive power 
over 500,000 shares of our common stock. The stockholder's address is 222 1/2 East 49th Street, New York, NY 10017.

 
139
(2)
Based upon a Schedule 13G/A filed by Ingalls & Snyder, LLC on February 21, 2025.  Ingalls & Snyder, LLC is deemed to be 
the beneficial owner with shared dispositive power over 2,681,770 shares of our common stock. The stockholder's address 
is 1 Rockefeller Plaza, New York, NY 10020. 
(3)
Includes 176,453 shares of our common stock held by James E. Brown and 8,000 shares of our common stock held by the 
James & Karen Brown 2006 Trust U/A. Also includes 495,423 shares of our common stock issuable upon exercise of options 
exercisable within 60 days of March 25, 2025.
(4)
Includes 101,127 shares of our common stock issuable upon exercise of options within 60 days of March 25, 2025 and 
137,500 shares of our common stock issuable upon exercise of restricted stock units exercisable by Timothy M. Papp.
(5)
Includes 125,239 shares of our common stock issuable upon exercise of options exercisable within 60 days of March 25, 
2025.
(6)
Includes 6,000 shares of our common stock held by Mohammad Azab. Also includes 20,750 shares of our common stock 
issuable upon exercise of options exercisable within 60 days of March 25, 2025.
(7)
Includes 10,000 shares of our common stock held by Gail M. Farfel. Also includes 29,000 shares of our common stock 
issuable upon exercise of options exercisable within 60 days of March 25, 2025.
(8)
Includes 7,000 shares of our common stock held by Peter S. Garcia. Also includes 15,667 shares of our common stock 
issuable upon exercise of options exercisable within 60 days of March 25, 2025.
(9)
Includes 20,000 shares of our common stock held by the Gail J. Maderis Revocable Trust dated April 8, 2013 Gail Maderis 
TTEE. Also includes 20,750 shares of our common stock issuable upon exercise of options exercisable within 60 days of 
March 25, 2025.
(10)
Includes 35,613 shares of our common stock held by Judith J. Robertson. Also includes 29,000 shares of our common stock 
issuable upon exercise of options exercisable within 60 days of March 25, 2025.
(11)
Includes an aggregate of 836,956 shares of our common stock issuable pursuant to the exercise of outstanding stock 
options exercisable within 60 days of March 25, 2025 held by all of our executive officers and directors as a group.

 
140
EQUITY COMPENSATION PLAN INFORMATION
The following table provides information as of December 31, 2024 with respect to the shares of our common stock that may 
be issued under our existing equity compensation plans.
 
Plan Category
 
Number of Securities
to be Issued Upon
Exercise of
Outstanding
Options,
Warrants and
Rights
  
Weighted-
Average
Exercise Price
of
Outstanding
Options,
Warrants and
Rights
  
Number of
Securities
Remaining Available
for
Future Issuance
Under Equity
Compensation
Plans (Excluding
Securities
Reflected in
Column (a))
  
 
 
(a)
  
(b)
  
(c)
  
Equity compensation plans approved by security holders (1)
  
4,894,287   $
6.31    
1,844,180  (2)
Equity compensation plans not approved by security holders
  
—    
—    
—   
Total
  
4,894,287   $
6.31    
1,844,180   
 
(1)
Consists of the following equity compensation plans: (i) our 2000 Stock Plan and (ii) our 2000 Employee Stock Purchase 
Plan.
(2)
Includes 1,844,180 shares of our common stock reserved under our 2000 Stock Plan for future issuance, and includes 
49,667 shares of our common stock reserved under our 2000 Employee Stock Purchase Plan for future issuance, including 
shares that will be purchased during the most recent purchase period under the 2000 Employee Stock Purchase Plan 
commencing on November 1, 2024 and ending on April 30, 2025.

 
141
Item 13. Certain Relationships, Related Transactions and Director Independence. 
CERTAIN RELATIONSHIPS
In accordance with the Audit Committee charter, the Audit Committee is responsible for reviewing and approving the terms 
and conditions of all related party transactions (as defined in Item 404 of Reg. S-K), other than compensation transactions, which 
are subject to the auspices of the Compensation Committee. Although we have not entered into any financial transactions with 
any immediate family member of any of our directors or executive officers, if we were to do so, any such material financial 
transaction would need to be approved by the Audit Committee before we enter into such a transaction. The Audit Committee 
also reviews and approves our proxy statement and the information contained therein.
INDEPENDENCE OF BOARD OF DIRECTORS AND ITS COMMITTEES
Under Nasdaq listing standards, independent directors must comprise a majority of a listed company’s board of directors 
within a specified period of the closing of the Company's initial public offering. In addition, the rules of Nasdaq require that, 
subject to specified exceptions, each member of a listed company’s audit, compensation and nominating and corporate 
governance committees be independent. Under the rules of Nasdaq, a director will only qualify as an “independent director” if, in 
the opinion of that company’s board of directors, the director does not have a relationship that would interfere with the exercise 
of independent judgment in carrying out the responsibilities of a director.
Audit committee members must also satisfy the independence criteria set forth in Rule 10A-3 under the Exchange Act. In 
order to be considered independent for purposes of Rule 10A-3, a member of an audit committee of a listed company may not, 
other than in his or her capacity as a member of the audit committee, the board of directors or any other board committee: (1) 
accept, directly or indirectly, any consulting, advisory or other compensatory fee from the listed company or any of its 
subsidiaries; or (2) be an affiliated person of the listed company or any of its subsidiaries. We currently satisfy the audit 
committee independence requirements of Rule 10A-3. Additionally, Compensation Committee members must not have a 
relationship with us that is material to the director’s ability to be independent from management in connection with the duties of 
a Compensation Committee member.
Our Board has undertaken a review of the independence of each director and considered whether each director has a 
material relationship with us that could compromise his or her ability to exercise independent judgment in carrying out his or her 
responsibilities. As a result of this review, our Board determined that each of our directors who served during 2024 or is currently 
serving, other than Dr. Brown, was or is an independent director as defined under the applicable rules and regulations of the SEC 
and the listing requirements and rules of Nasdaq. 
OTHER TRANSACTIONS
During the last fiscal year, we granted options to purchase common stock to our employees and directors as reported in 
this Annual Report on Form 10-K.
We have entered into indemnification agreements with each of our directors and executive officers. Such agreements 
require us, among other things, to indemnify our officers and directors, other than for liabilities arising from willful misconduct of 
a culpable nature, and to advance their expenses incurred as a result of any proceedings against them as to which they could be 
indemnified.

 
142
Item 14. Principal Accountant Fees and Services. 
FEES BILLED FOR SERVICES RENDERED BY PRINCIPAL ACCOUNTANT
On June 28, 2024, the Audit Committee dismissed Ernst & Young LLP (“EY”) as the Company’s independent registered 
public accounting firm and appointed WithumSmith+Brown, PC (“Withum”) as the Company’s new independent registered public 
accounting firm commencing with the Company’s fiscal year ended December 31, 2024.
All Audit Fees, Audit-Related Fees, Tax Fees and Other Fees for 2024 were pre-approved by the Audit Committee according 
to the policies and procedures described above under the caption “The Board, Board Committees and Meetings—Audit 
Committee.” The following table depicts the fees for services provided by Withum and EY during the fiscal years ended December 
31, 2024 and December 31, 2023, respectively. Withum did not provide any services during the fiscal year ended December 31, 
2023.
 
 
 
Years Ended
December 31,
 
 
 
2024 (1)
  
2023 (2)
 
Audit Fees
 
$
518,956   
$
1,303,024  
Tax Fees
 
 
15,100   
 
83,298  
Total
 
$
534,056   
$
1,386,322  
 
(1) Represents fees billed by Withum for the year ended December 31, 2024. 
(2) Represents fees billed by EY for the year ended December 31, 2023.
Audit Fees
Audit Fees include fees for audit services associated with the 2024 and 2023 audits of our annual financial statements and 
the review of the financial statements included in our quarterly reports on Form 10-Q. Audit Fees also include fees for advice on 
audit and accounting matters that arose during, or as a result of, the audit or the review of annual and interim financial 
statements, respectively. Additionally, the 2023 Audit Fees include approximately $135,000 related to the review of SEC 
registration statements, issuance of comfort letters, and issuance of consents.
Tax Fees
Tax fees include tax compliance services related to preparation of tax returns, assistance with filing of employee retention 
credits with the Internal Revenue Service and other tax matters.

 
143
PART IV
Item 15. Exhibits and Financial Statement Schedules.
(a) The following documents are filed as part of this report:
(1) Financial Statements
The Index to financial statements in Item 8 of this report is incorporated herein by reference as the list of the 
financial statements required as part of this report.
(2) Financial Statement Schedules
Schedules not listed above have been omitted because the information required to be set forth therein is not 
applicable or is not present in amounts sufficient to require submission of the schedule, or because the information 
required is included in the financial statements or notes thereto.
(3) The list of exhibits are filed as part of or furnished with this annual report on Form 10-K as applicable.
 

 
144
Exhibit Index
 
Exhibit
Number
 
Description
 
 
 
  3.1
 Amended and Restated Certificate of Incorporation of the Company (incorporated by reference to Exhibit 3.3 to the 
Company’s Quarterly Report on Form 10-Q (File No. 000-31615), as filed with the SEC on November 4, 2010).
 
  
  3.2
 Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Company (incorporated 
by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K, as filed with the SEC on June 20, 2018).
 
  
  3.3
 Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Company (incorporated 
by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K, as filed with the SEC on June 16, 2021).
 
  
  3.4
 Certificate of Correction to the Charter Amendment of the Company (incorporated by reference to Exhibit 3.1 to 
the Company’s Current Report on Form 8-K/A, as filed with the SEC on June 25, 2021).
 
  
  3.5
 Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Company (incorporated 
by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K, as filed with the SEC on June 16, 2022).
 
  
  3.6
 Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Company (incorporated 
by reference to Exhibit 3.8 of the Company's Annual Report on Form 10-K, as filed with the SEC on March 8, 2023).
 
  
  3.7
 Amended and Restated Bylaws of the Company (incorporated by reference to Exhibit 3.1 to the Company’s Current 
Report on Form 8-K (File No. 000-31615), as filed with the SEC on December 17, 2014).
 
  
  3.8
 Certificate of Designation of Rights, Preferences and Privileges of Series A Participating Preferred Stock of the 
Company (incorporated by reference to Exhibit 3.3 to the Company’s Registration Statement on Form S-3, as 
amended (File No. 333-128979), as initially filed with the SEC on October 13, 2005).
 
  
  3.9
 Certificate of Amendment to Certificate of Designation of Rights, Preferences and Privileges of Series A 
Participating Preferred Stock of the Company (incorporated by reference to Exhibit 3.7 to the Company’s Quarterly 
Report on Form 10-Q (File No. 000-31615), as filed with the SEC on August 5, 2010).
 
  
  3.10
 Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Company (incorporated 
by reference to Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q (File No. 000-31615), as filed with the 
SEC on November 14, 2024).
 
  
  4.1
 Description of Securities of the Registrant Registered Pursuant to Section 12 of the Securities Exchange Act of 
1934, as amended (incorporated by reference to Exhibit 4.1 to the Company’s Annual Report on Form 10-K (File 
No. 000-31615), as filed with the SEC on March 28, 2024).

 
145
Exhibit
Number
 
Description
 
 
 
 
  
  4.2
 Form of Warrant (February 2023) (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on 
Form 8-K, as filed with the SEC on February 7, 2023).
 
  
  4.3
 Form of Warrant (July 2023) (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K, as 
filed with the SEC on July 21, 2023).
 
  
  10.1+
 Form of Indemnification Agreement between the Company and each of its Officers and Directors (incorporated by 
reference to Exhibit 10.1 to the Company’s Registration Statement on Form S-1, as amended (File No. 333-35316), 
as initially filed with the SEC on April 20, 2000).
 
  
  10.2+
 DURECT Corporation 2000 Stock Plan, as amended (incorporated by reference to Exhibit 10.1 to the Company’s 
Current Report on Form 8-K, as filed with the SEC on September 26, 2024).
 
  
  10.3+
 Form of Employee Restricted Stock Unit Award Agreement for use with the DURECT Corporation 2000 Stock Plan 
(incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K, as filed with the SEC on 
July 30, 2024).
 
  
  10.4+
 2000 Employee Stock Purchase Plan, as amended (incorporated by reference to Exhibit 10.1 to the Registrant’s 
Current Report on Form 8-K (File No. 000-31615) filed on June 22, 2023).
 
  
  10.5
 Modified Net Single Tenant Lease Agreement between the Company and DeAnza Enterprises, Ltd. dated as of 
February 18, 1999 (incorporated by reference to Exhibit 10.11 to the Company’s Registration Statement on Form 
S-1, as amended (File No. 333-35316), as initially filed with the SEC on April 20, 2000).
 
  
  10.6
 Second Amendment to Lease between De Anza Enterprises and the Company dated as of August 6, 2009 
(incorporated by reference to Exhibit 10.56 to the Company’s Quarterly Report on Form 10-Q (File No. 000-31615), 
as filed with the SEC on November 2, 2009).
 
  
  10.7
 Third Amendment to Lease between De Anza Enterprises and the Company dated as of December 21, 2010 
(incorporated by reference to Exhibit 10.63 to the Company’s Annual Report on Form 10-K (File No. 000-31615), as 
filed with the SEC on March 3, 2011).
 
  
  10.8
 Fourth Amendment to Lease between De Anza Enterprises and the Company dated as of August 20, 2013 
(incorporated by reference to Exhibit 10.71 to the Company’s Quarterly Report on Form 10-Q (File No. 000-31615), 
as filed with the SEC on November 5, 2013).
 
  
  10.9
 Exclusive License Agreement between the Company and Virginia Commonwealth University Intellectual Property 
Foundation dated December 5, 2012 (incorporated by reference to Exhibit 10.3 to the Company’s Annual Report on 
Form 10-K (File No. 000-31615), as filed with the SEC on November 8, 2018).
 
  
  10.10
 Fifth Amendment to Lease between De Anza Enterprises and the Company dated as of August 15, 2018 
(incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K, as filed with the SEC on 
August 17, 2018).

 
146
Exhibit
Number
 
Description
 
 
 
 
  
  10.11++
 Amendment No. 1 to Exclusive License Agreement between the Company and Virginia Commonwealth University 
Intellectual Property Foundation dated July 2, 2015 (incorporated by reference to Exhibit 10.34 to the Company’s 
Quarterly Report on Form 10-Q (File No. 000-31615), as filed with the SEC on November 14, 2024).
 
  
  10.12++
 Amendment No. 2 to Exclusive License Agreement between the Company and Virginia Commonwealth University 
Intellectual Property Foundation dated March 6, 2018 (incorporated by reference to Exhibit 10.4 to the Company’s 
Quarterly Report on Form 10-Q (File No. 000-31615), as filed with the SEC on November 14, 2024).
 
  
  10.13++
 License agreement by and between the Company and Innocoll Pharmaceuticals Limited dated December 21, 2021 
(incorporated by reference to Exhibit 10.28 to the Company’s Annual Report on Form 10-K (File No. 000-31615), as 
filed with the SEC on March 8, 2022).
 
  
  10.14
 First Amendment to License Agreement by and between the Company and Innocoll Pharmaceuticals Limited dated 
September 19, 2022 (incorporated by reference Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (File 
No. 000-31615) filed with the SEC on November 3, 2022).
 
  
  10.15+
 Offer letter between Timothy M. Papp and the Company (incorporated by reference to Exhibit 10.1 to the 
Company’s Current Report on Form 8-K, as filed with the SEC on July 5, 2022).
 
  
  10.16+
 Offer letter between Norman L. Sussman and the Company dated October 12, 2020 (incorporated by reference to 
Exhibit 10.1 to the Company’s Current Report on Form 8-K, as filed with the SEC on November 2, 2022).
 
  
  10.17+
 Employment Agreement with James E. Brown (incorporated by reference to Exhibit 10.14 to the Company’s 
Registration Statement on Form S-1, as amended (File No. 333-35316), as initially filed with the SEC on April 20, 
2000).
 
  
  10.18
 Form of Securities Purchase Agreement, dated February 3, 2023 (incorporated by reference to Exhibit 10.1 to the 
Company’s Current Report on Form 8-K, as filed with the SEC on February 7, 2023).
 
  
  10.19
 Addendum IV to Lease between the Company and Wescove Vacaville, LLC dated as of May 11, 2023 (incorporated 
by reference Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (File No. 000-31615) filed with the SEC 
on August 10, 2023).
 
  
  10.20
 Securities Purchase Agreement, dated July 19, 2023 (incorporated by reference to Exhibit 10.1 to the Company’s 
Current Report on Form 8-K, as filed with the SEC on July 21, 2023).
 
  
  10.21
 Sixth amendment to Lease between the Company and De Anza Enterprises LLC dated as of September 6, 2023 
(incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q (File No. 000-31615), 
as filed with the SEC on November 14, 2023).
 
  
10.22*++
 Asset purchase agreement by and between the Company and ALZET, LLC dated as of November 22, 2024.

 
147
Exhibit
Number
 
Description
 
 
 
 
  
  19.1*
 Insider Trading Policy.
 
  
  23.1*
 Consent of Independent Registered Public Accounting Firm.
 
  
  23.2*
 Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm.
 
  
  31.1*
 Rule 13a-14(a) Section 302 Certification.
 
  
  31.2*
 Rule 13a-14(a) Section 302 Certification.
 
  
  32.1**
 Certificate pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 
2002.
 
  
  32.2**
 Certificate pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 
2002.
 
  
  97.1
 Company Compensation Recovery Policy (incorporated by reference to Exhibit 97.1 to the Company’s Annual 
Report on Form 10-K (File No. 000-31615), as filed with the SEC on March 28, 2024).
 
  
  101
 The following financial statements from the Company's Annual Report on Form 10-K for the year ended December 
31, 2024, formatted in Inline XBRL: (i) Balance Sheets as of December 31, 2024 and 2023, (ii) Statements of 
Operations and Comprehensive Loss for the years ended December 31, 2024  and 2023, (iii) Statements of 
Stockholders' Equity for the years ended December 31, 2024 and 2023, (iv) Statements of Cash Flows for the years 
ended December 31, 2024 and 2023 and (v) Notes to Financial Statements, tagged as blocks of text and including 
detailed tags.
 
  
  104
 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).
 
* Filed herewith.
** Furnished, not filed.
+ Indicates a management contract or compensatory plan or arrangement.
++ Certain portions of this exhibit (indicated by “[***]”) have been omitted in accordance with Item 601(b)(10) of Regulation S-K.
 
Item 16. Form 10-K Summary.
The Company has elected not to include summary information.

 
148
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused 
this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
DURECT CORPORATION
 
 
By:
/S/    JAMES E. BROWN
 
James E. Brown
President and Chief Executive Officer
 
Date: March 27, 2025
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following 
persons on behalf of the registrant and in the capacities and on the dates indicated.
 
Signature
 
Title
 
Date
 
  
 
 
/s/    JAMES E. BROWN
 
President, Chief Executive Officer and Director 
(Principal Executive Officer)
 
March 27, 2025
James E. Brown
  
 
 
 
  
 
 
/s/    TIMOTHY M. PAPP
 
Chief Financial Officer
(Principal Accounting Officer)
 
March 27, 2025
Timothy M. Papp
  
 
 
 
  
 
 
/s/    MOHAMMAD AZAB
 Director
 
March 27, 2025
Mohammad Azab
  
 
 
 
  
 
 
/s/    GAIL M. FARFEL
 Director
 
March 27, 2025
Gail M. Farfel
  
 
 
 
  
 
 
/s/    PETER S. GARCIA
 Director
 
March 27, 2025
Peter S. Garcia
  
 
 
 
  
 
 
/s/    GAIL J. MADERIS
 Director, Chair of the Board
 
March 27, 2025
Gail J. Maderis
  
 
 
 
  
 
 
/s/    JUDITH J. ROBERTSON
 Director
 
March 27, 2025
Judith J. Robertson