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Flexion Therapeutics Inc

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FY2019 Annual Report · Flexion Therapeutics Inc
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Dear Stockholders:

Each year, I look forward to writing this letter as it provides me with an opportunity to reflect on Flexion’s recent 
performance and to highlight the opportunities that are ahead of us. As I write today, we are in the midst of an 
unprecedented health crisis stemming from the coronavirus global pandemic that causes the COVID-19 disease 
(“COVID-19”). With that backdrop, it is difficult to predict what the coming weeks and months will mean for the world, 
our nation and for Flexion; however, even as we navigate these uncharted waters, we are proceeding with confidence 
that we will emerge from this crisis stronger, both as a country and as a company.

First and foremost, we are building Flexion to be a company that lasts, and thanks to the support of our stockholders, 
our customers and our employees, we believe we have a very bright future. Since our founding in 2007, we have made 
tremendous  progress  advancing  our  vital  mission  to  improve  the  human  condition  by  developing  meaningful 
medicines for patients with musculoskeletal conditions, beginning with ZILRETTA®, the first and only extended-
release, intra-articular injection for osteoarthritis knee pain.

2019 was a remarkable year for ZILRETTA, and it was bounded by two important milestones in the product’s brief 
history. First, on January 1, 2019, ZILRETTA’s permanent J code (J3304) took effect, providing our customers with 
defined  and  predictable  reimbursement.  That  milestone  had  a  marked  impact  on  our  ability  to  both  increase 
ZILRETTA’s utilization in existing practices and penetrate new accounts. In fact, by the end of 2019, we had sold more 
than 175,000 units of ZILRETTA, and in 2019, we recorded sales of $73 million reflecting growth of more than 220% over 
sales in 2018.  

Second, on December 26, 2019, we announced that the U.S. FDA had approved a supplemental New Drug Application 
for an improved product label. The new label eliminates previous Limitation of Use language regarding repeat 
administration that was confusing to prescribers and payors and now includes language that is clearer and that we 
believe should reduce barriers to repeat administration.   

2019 was also an outstanding year with respect to building Flexion’s future with the addition and advancement of two 
high-quality product candidates, FX201 and FX301. FX201 is our investigational intra-articular gene therapy candidate 
which, we believe, following a single injection, could provide OA pain relief for at least a year, improve function and 
modify disease progression. We were delighted to have initiated our single, ascending dose trial for that product 
candidate – even though enrollment had to be suspended this year in the face of the challenges of COVID-19. 

In addition, we executed a cost-effective business development deal to acquire XEN402, a novel, selective sodium 
channel (NaV1.7) blocker. Leveraging our internal capabilities, we formulated this molecule in a thermosensitive 
hydrogel developed by our scientists for administration as a peripheral nerve block for control of post-operative pain. 
The new preclinical product candidate, known as FX301, is designed to be liquid at room temperature and, following 
peri-neural injection, forms a gel, essentially creating a depot that can pay out drug at therapeutic concentrations 
locally for at least three to five days. The vision for FX301 is a product that confers persistent, meaningful post-op pain 
relief while sparing motor function. Assuming the GLP toxicology data which we are generating now is supportive, we 
expect FX301 to be in the clinic next year.

Sadly, while we all are dealing with the tragic impacts of COVID-19, I take solace in the resilience of our country, the 
selfless commitment of front-line health care professionals who are tending to the afflicted and the grit of our 
dedicated employees who make Flexion such a remarkable organization. They know there are millions of patients 
counting on us, and their resolve is unwavering in delivering on the promise of ZILRETTA and 
our pipeline product candidates. 

I look forward to writing next year’s letter with the hope and expectation that COVID-19 will 
be behind us, our nation will be well on its way to recovery and that Flexion will have made 
substantial progress on its journey to realize its potential to deliver medicines that matter to 
patients in need. 

Be well. 

Michael Clayman, MD
President & Chief Executive Officer

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, 2019
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 001-36287

Flexion Therapeutics, Inc.

(Exact name of Registrant as specified in its Charter) 

Delaware
(State or other jurisdiction of
incorporation or organization)
10 Mall Road, Suite 301
Burlington, Massachusetts
(Address of principal executive offices)

01803
(Zip Code)
Registrant’s telephone number, including area code: (781) 305-7777 

26-1388364
(I.R.S. Employer
Identification No.)

Securities registered pursuant to Section 12(b) of the Act: 

Title of each class
Common stock, $0.001 par value per share

Securities registered pursuant to Section 12(g) of the Act: None 

Trading
Symbol(s)
FLXN

Name of each exchange on which registered
The Nasdaq Global Market

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 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 that 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

   Smaller reporting company

  ☒
  ☐

Non-accelerated filer

  ☐
  ☐

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 is a shell company (as defined in Rule 12b-2 of the Exchange Act).  YES ☐ NO ☒
The aggregate market value of the Registrant’s voting and non-voting common equity held by non-affiliates of the Registrant, based on the closing price of 
the shares of common stock on The Nasdaq Stock Market on June 28, 2019, was $409,302,635. 
The number of shares of the Registrant’s common stock outstanding as of February 28, 2020 was  38,551,706. 

DOCUMENTS INCORPORATED BY REFERENCE
Portions of the Registrant’s proxy statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A in connection with the 

Registrant’s 2020 Annual Meeting of Stockholders, which will be filed subsequent to the date hereof, are incorporated by reference into Part III of this Form 10-K. 
Such proxy statement will be filed with the Securities and Exchange Commission not later than 120 days following the end of the Registrant’s fiscal year ended 
December 31, 2019.

 
 
 
 
 
 
FLEXION THERAPEUTICS, INC.
FORM 10-K—ANNUAL REPORT
For the Fiscal Year Ended December 31, 2019

TABLE OF CONTENTS

PART I

Item 1.

Business ................................................................................................................................................

Item 1A. Risk Factors ..........................................................................................................................................

Item 1B. Unresolved Staff Comments.................................................................................................................

Item 2.

Properties ..............................................................................................................................................

Item 3.

Legal Proceedings.................................................................................................................................

Item 4. Mine Safety Disclosures .......................................................................................................................

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of 

Equity Securities...................................................................................................................................

Item 6.

Selected Financial Data ........................................................................................................................

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations...............

Item 7A. Quantitative and Qualitative Disclosures About Market Risk .............................................................

Item 8.

Financial Statements and Supplementary Data ....................................................................................

Item 9.

Changes in and Disagreements With Accountants on Accounting and Financial Disclosure .............

Item 9A. Controls and Procedures .......................................................................................................................

Item 9B. Other Information .................................................................................................................................

PART III

Item 10. Directors, Executive Officers and Corporate Governance ...................................................................

Item 11. Executive Compensation ......................................................................................................................

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder 

Matters ..................................................................................................................................................

Item 13. Certain Relationships and Related Transactions, and Director Independence .....................................

Item 14. Principal Accounting Fees and Services...............................................................................................

PART IV  

Item 15. Exhibits, Financial Statement Schedules .............................................................................................

Item 16.

10-K Summary.....................................................................................................................................

Signatures  .............................................................................................................................................................

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Special Note Regarding Forward-Looking Statements

PART I

This Annual Report on Form 10-K, or this Annual Report, contains “forward-looking statements”— that is, 

statements related to future, not past, events—as defined in Section 21E of the Securities Exchange Act of 1934, as 
amended, or the Exchange Act, that reflect our current expectations regarding our future discovery, development 
and commercialization activities, results of operations, financial condition, cash flows, performance and business 
prospects, and opportunities, as well as assumptions made by, and information currently available to, our 
management. Forward-looking statements include any statement that does not directly relate to a current or 
historical fact. We have tried to identify forward-looking statements by using words such as “believe,” “may,” 
“could,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “seek,” “plan,” “expect,” “should,” or “would.” 
Among the factors that could cause actual results to differ materially from those indicated in the forward-looking 
statements are risks and uncertainties inherent in our business including, without limitation: we have incurred 
significant losses since our inception and we expect to incur substantial losses for the foreseeable future and may 
never achieve or maintain profitability; we have a limited history of commercializing ZILRETTA® and have not 
received regulatory approval for any other product candidates; we may require additional capital prior to completing 
development and commercializing any of our product candidates in development; we may be unable to successfully 
commercialize ZILRETTA or any of our other product candidates; we rely on third parties to manufacture and 
conduct the clinical trials of ZILRETTA and our development-stage product candidates, which could limit our 
commercialization efforts or delay or limit their future development or regulatory approval; we may be unable to 
adequately maintain and protect our proprietary intellectual property assets, which could impair our commercial 
opportunities; and other risks detailed below in “Item 1A. Risk Factors.”

Although we believe that the expectations reflected in our forward-looking statements are reasonable, we 
cannot guarantee future results, events, levels of activity, performance or achievement. We undertake no obligation 
to publicly update or revise any forward-looking statements, whether as a result of new information, future events or 
otherwise, unless required by law.

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Item 1. Business

Unless the content requires otherwise, references to “Flexion,” “Company,” “we,” “our,” and “us,” in this 

Annual Report refer to Flexion Therapeutics, Inc. and our subsidiary, Flexion Therapeutics Securities Corporation.

Overview

We are a biopharmaceutical company focused on the discovery, development and commercialization of novel, 
local therapies for the treatment of patients with musculoskeletal conditions, beginning with osteoarthritis, or OA, a 
type of degenerative arthritis. We have an approved product, ZILRETTA®, which we market in the United States. 
ZILRETTA is the first and only extended-release, intra-articular, or IA (meaning in the joint), injection indicated for 
the management of OA knee pain. ZILRETTA is a non-opioid therapy that employs our proprietary microsphere 
technology to provide effective pain relief. The pivotal Phase 3 trial, on which the approval of ZILRETTA was 
based, showed that ZILRETTA met the primary endpoint of pain reduction at Week 12, with statistically significant 
pain relief extending through Week 16.  

ZILRETTA was approved by the U.S. Food & Drug Administration, or FDA, on October 6, 2017 and 
launched in the United States shortly thereafter. We market ZILRETTA to prescribing physicians through our own 
field sales force of approximately 110 Musculoskeletal Business Managers, or MBMs.

ZILRETTA combines a commonly administered steroid, triamcinolone acetonide, or TA, with poly lactic-co-
glycolic acid, referred to as PLGA, delivering a 32 mg dose of TA to provide extended therapeutic concentrations in 
the joint and persistent analgesic effect. Both the magnitude and duration of pain relief provided by ZILRETTA in 
clinical trials were clinically meaningful with the magnitude of pain relief amongst the largest seen to date in OA 
clinical trials. The overall frequency of treatment-related adverse events in these trials was similar to those observed 
with placebo and no drug-related serious adverse events were reported. 

Based on the strength of our pivotal and other clinical trials, we believe that ZILRETTA represents an 
important treatment option for the millions of patients in the U.S. who are in need of safe and effective extended 
relief from OA knee pain.  ZILRETTA is uniquely distinguished by the following attributes:

(cid:129)

in the Phase 3 trial, 

o

o

o

o

statistically significant pain relief against placebo (saline) as measured by the weekly mean of the 
Average Daily Pain, or ADP, score:

(cid:3)

(cid:3)

demonstrated at week 12, the primary endpoint, a p-value of <0.0001, 2-sided, with benefits 
extending through week 16; and

at each week beginning at week 1 and continuing through week 12 nearly 60% of patients 
reported no pain or mild pain;

statistically significant change from baseline as compared to placebo in weekly ADP intensity score 
through week 12 as measured by the area under effect curve (p<0.0001) (demonstrating a 50% 
reduction from baseline);

numeric improvement when compared with placebo and immediate-release TA at each time point 
through 12 weeks on exploratory measures – WOMAC A (pain), WOMAC B (stiffness) and 
WOMAC C (function) and the Knee Injury and Osteoarthritis Outcome Score (KOOS) quality of 
life subscale; and

reduced rescue medicine consumption compared with placebo and immediate-release TA 
(exploratory endpoint);  

an acceptable safety profile with side effects similar to placebo;

statistically significant (p<0.05, 2-sided) reduction in the rise of blood glucose compared to that 
observed following immediate-release TA injection in patients with Type 2 diabetes who also have knee 
OA as measured by change in average blood glucose from baseline to 72 hours post injection; and

persistent concentrations of drug in the joint.  

(cid:129)

(cid:129)

(cid:129)

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ZILRETTA has demonstrated significant, durable relief for OA knee pain and, as such, can address an 

important unmet need among patients, physicians and healthcare payers. We believe that ZILRETTA holds the 
potential to become the leading IA medicine for OA knee pain. 

In December 2018, we submitted a supplemental New Drug Application, or sNDA, to the FDA to revise the 
product label for ZILRETTA to allow for repeat administration. The sNDA submission was based on data from a 
Phase 3b single-arm, open-label clinical trial which evaluated the safety and tolerability of repeat administration of 
ZILRETTA. On December 26, 2019, we announced that the FDA approved the sNDA. The revised product label 
removed language which previously stated that ZILRETTA was “not intended for repeat administration” and 
replaced it with language stating that “the efficacy and safety of repeat administration of ZILRETTA have not been 
demonstrated.” FDA determined that because the data were not from a randomized, placebo-controlled clinical trial, 
the Phase 3b results were insufficient to warrant full removal of a Limitation of Use statement, or LOU. The new 
label includes a study description and safety data from the Phase 3b repeat administration trial and nonclinical 
toxicology data from previously submitted single and repeat administration studies in non-diseased animals. In 
addition, the revised label removed a statement that described a single secondary exploratory endpoint in the original 
Phase 3 pivotal trial comparing ZILRETTA to immediate release TA crystalline suspension. 

We believe ZILRETTA’s extended-release profile may also provide effective treatment for OA pain of the 

shoulder and adhesive capsulitis (AC), commonly referred to as “frozen shoulder,” and in December 2019, we 
initiated a double-blind, placebo-controlled Phase 2 trial to evaluate the efficacy of ZILRETTA in patients with 
either shoulder OA or AC.  The data are anticipated in 2021.

OA is a type of degenerative arthritis that is caused by the progressive breakdown and eventual loss of 

cartilage in one or more joints. Arthritis is the most common cause of disability in the U.S. and OA is the most 
common joint disease, affecting more than 30 million adults in the U.S. and these numbers are expected to grow as a 
result of aging, obesity and sports injuries. OA commonly affects large weight-bearing joints like the knees and hips, 
but also occurs in the shoulders, hands, feet and spine. Patients with OA suffer from joint pain, tenderness, stiffness 
and limited movement. As the disease progresses, it becomes increasingly painful and debilitating, culminating, in 
many cases, in the need for total joint arthroplasty, or TJA.

Because there is no cure for OA, controlling pain and delaying surgery are the primary goals of prescribing 

clinicians. Oral drugs, such as non-steroidal anti-inflammatory drugs, or NSAIDs, including COX II inhibitors, and 
serotonin and norepinephrine reuptake inhibitors, or SNRIs, as well as topical NSAIDs, are used to treat early-stage 
OA pain but have limited effect and, given the amount and frequency of use in OA patients, are associated with 
serious side effects. For example, NSAIDs have shown increased risk of serious cardiovascular thrombotic events, 
myocardial infarction, and stroke. Furthermore, this class of drugs can cause serious gastrointestinal adverse events 
including bleeding, ulceration and perforation of the stomach or intestines. These serious side effects are particularly 
worrisome because OA patients often have co-existing medical conditions, including diabetes and hypertension. For 
patients with moderate to severe OA pain, IA medicines, such as immediate-release steroids and hyaluronic acid, or 
HA, injected into the joint, are generally considered well-tolerated, but they leave the joint rapidly and often fail to 
produce or maintain clinically meaningful pain relief. Physicians may prescribe opioids, which in addition to the 
serious risk of addiction and abuse, have numerous serious side effects including respiratory depression, 
hypotension, constipation, cardiac events and, increasingly, deaths from unintentional overdose. As a result of these 
limitations, many OA patients experience persistent and worsening pain, which often culminates in the decision to 
have TJA, a painful and expensive procedure. Further, because the initial joint replacement wears out over time, the 
younger the patient is at the time of the joint replacement, the more likely it is that he or she will require repeat 
surgery in their lifetime.

According to IQVIA, in 2018 approximately 5 million patients in the U.S. received an IA injection treatment 

for knee OA pain. That population was comprised of approximately 4.5 million patients who were treated with 
immediate-release steroids and roughly 900,000 patients who received hyaluronic acid, or HA, with some patients 
receiving both treatments in the same year.  The HA utilization occurred despite guidance from prominent medical 
societies, including the American Academy of Orthopedic Surgeons stating that HA is an ineffective treatment for 
knee OA, and a number of major commercial payers no longer reimburse for the entire class of HA products. In 
addition, according to SmartTRAK in 2018, HA sales in the U.S. were $1 billion, with a cost per course of treatment 
ranging from $245 to $2,000.  Our market research indicates that, given the limitations of immediate-release steroids 

5

and HAs, physicians are open to new treatment options, like ZILRETTA, which can provide their patients with 
enhanced durable pain relief.

We have established a clinical trial program designed to expand ZILRETTA’s product label, and we are 

currently enrolling patients in a Phase 2 trial of ZILRETTA in both shoulder OA and adhesive capsulitis. IQVIA 
data indicate that, in 2018, healthcare practitioners administered roughly 600,000 immediate release steroid 
injections for the treatment of shoulder OA. An additional approximately 200,000 injections were administered to 
patients for the treatment of adhesive capsulitis. 

We have a growing pipeline with two product candidates focused on the local treatment of musculoskeletal 

conditions: FX201 and FX301. FX201, is a gene therapy product candidate designed to stimulate the production of 
an anti-inflammatory protein, interleukin-1 receptor antagonist (IL-1Ra), with the goal of providing at least one year 
of pain relief from OA of the knee and improving function. Based on its mechanism of action, we believe FX201 
also holds the potential to arrest disease progression. In October of 2019, the FDA cleared the Investigational New 
Drug (IND) application for FX201, allowing for initiation of a Phase 1 dose-escalation study. If data from that study 
are supportive, we intend to initiate a Phase 2 proof of concept trial in 2021.  

FX301, is a locally administered NaV1.7 inhibitor, known as funapide, formulated for extended release in a 
thermosensitive hydrogel. The initial development of FX301 is intended to support administration as a peripheral 
nerve block for management of post-operative pain. We believe FX301 has the potential to provide effective, non-
opioid pain relief for 3-5 days, while preserving extremity motor function, which is typically compromised by local 
anesthetic peripheral nerve block. We held a pre-IND meeting with FDA in January, and we remain on track to 
initiate FX301 clinical trials in 2021.

We have worldwide commercialization rights for ZILRETTA, FX201 and FX301. We also have an exclusive 

worldwide license agreement with Southwest Research Institute, or SwRI®, with respect to the use of SwRI’s 
proprietary microsphere manufacturing technologies for certain steroids formulated with PLGA, including 
ZILRETTA.  Our PLGA formulation technology is protected through a combination of patents, trade secrets, and 
proprietary know-how.  In addition, we own or have rights to various trademarks, copyrights and trade names used 
in our business, including FLEXION®, ZILRETTA® and FLEXFORWARD®.  Our logos and trademarks are the 
property of Flexion Therapeutics, Inc.  All other brand names or trademarks appearing in this report are the property 
of their respective holders.  Use or display by us of other parties’ trademarks, trade dress, or products in this report is 
not intended to, and does not, imply a relationship with, or endorsement or sponsorship of us, by the trademark or 
trade dress owners.

Our Strategy

Our goal is to cost-effectively discover, develop and commercialize novel, locally administered medicines that 
can safely and effectively address significant unmet medical needs associated with musculoskeletal conditions, with 
a particular interest in OA, post-operative pain and low back pain. The principal elements of our strategy include the 
following:

•

Establish ZILRETTA as the leading IA treatment for OA knee pain and maximize its value by 
expanding approved indications. Based on ZILRETTA’s clinical profile, we believe that it can be the 
first-line IA therapy for OA knee pain.  Immediate-release IA steroids leave the joint rapidly and 
typically fail to confer pain relief of sufficient magnitude or duration. Since, by medical practice, 
steroids typically are not injected more frequently than every three months, patients can experience a 
recurrence in, or increasing, pain during that time.  ZILRETTA is specifically formulated using our 
proprietary PLGA-based microsphere technology to slowly and continuously release drug in the joint 
for over 12 weeks.

ZILRETTA is currently approved for the treatment of OA knee pain, but we believe that it has the 
potential for broader use, specifically in the shoulder. In December 2019, we initiated a Phase 2 trial of 
ZILRETTA in OA shoulder pain and adhesive capsulitis.

•

Bolster our robust pipeline of high-quality product candidates to address unmet medical needs.  We 
seek to progress our product candidates, FX201 and FX301, and further build our product pipeline 

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through a combination of internal research and selective business development activities. In 2017, we 
established the Flexion Innovation Lab in Woburn, Massachusetts to support our research and 
development activities.

•

•

Leverage our infrastructure to efficiently and cost-effectively develop and commercialize ZILRETTA 
and our product candidates. We have built up extensive knowledge, expertise and capabilities in the 
development and commercialization of locally delivered medicines for musculoskeletal conditions. 

Retain commercial rights in the United States and selectively partner outside of the United States. 
Because IA therapies in the United States are administered by a relatively small number of specialists, 
particularly orthopedists and rheumatologists, we believe we can realize the greatest value for our 
shareholders by fully exploiting our know-how and capabilities. The U.S. represents the most attractive 
market for ZILRETTA, and potentially for FX201 and FX301, and as a result, we aim to retain the 
commercial rights to our product and programs in the U.S. while we look to selectively partner outside 
of the United States.

Overview

Osteoarthritis

OA, also referred to as degenerative joint disease, is the most common joint disease in the U.S. according to 

the U.S. Centers for Disease Control and Prevention, or the CDC, affecting more than 30 million adults. These 
numbers are expected to grow in the years ahead as a result of aging, obesity and sports injuries.

•

•

•

•

According to the CDC, approximately 40% of U.S. adults are obese, which increases the risk of 
developing OA.

Knee injury is common, particularly amongst young athletes, and increases the risk of developing OA 
later in life by more than five-fold.

OA accounts for over $185 billion of annual healthcare expenditures, which does not include loss of 
productivity costs. 

According to a study published by the Osteoarthritis Research Society International, U.S. patients with 
symptomatic radiographic knee OA were 23% more likely to die prematurely than people free from OA 
independent of age, sex, and race. 

According to the CDC, one of every two people in the U.S. is expected to develop symptomatic knee OA, the 

most common form of OA during their lifetime. Recent research estimates that the average age of physician-
diagnosed knee OA has fallen by 16 years, from age 72 in the 1990s to age 56 in the 2010s. According to the same 
research, U.S. adults between the ages of 35 and 84 in the early 2010s will account for approximately 6.5 million 
new cases of knee OA over the next decade.

OA is a progressive disease for which there is no cure. As a result, current treatments are intended to address 
the symptoms of OA, in particular, relief of pain and improvement in functional status. The therapeutic regimen for 
OA becomes increasingly invasive with progression of the disease, culminating, in many cases, in TJA. In addition, 
because patients are being diagnosed with OA earlier in their lives, many patients require repeat TJAs. Because the 
decision to have TJA is based in large part on intractable pain and functional impairment, we believe that therapies 
which can meaningfully and durably relieve pain and improve function could potentially delay TJA.

Common Treatments for OA

In early-stage disease, treatment begins with non-pharmacologic therapy including exercise, weight control 
and physical therapy. As the disease progresses, physicians prescribe pharmacologic therapy, typically beginning 
with acetaminophen and progressing to oral NSAIDs, including COX II inhibitors, topical NSAIDs or SNRIs. 
Physicians may also treat OA pain with opioids; however, these drugs have serious drawbacks and are generally 
considered to be a suboptimal therapy for chronic non-cancer pain, like that associated with OA. 

When non-pharmacologic therapy and oral pain medications prove inadequate, physicians typically transition 
patients to IA injections. Immediate-release steroids have historically served as the first line IA therapy, and TA, the 
corticosteroid used in ZILRETTA, is amongst the most commonly prescribed IA corticosteroid injections. When 

7

immediate-release steroids no longer provide sufficiently durable pain relief, patients may progress to IA HA, a 
significantly more expensive therapy with only marginally greater effect than placebo. 

Due to severe pain that can no longer be controlled therapeutically, many patients opt to have TJA, which is 

costly and painful. One of the most prevalent TJA procedures in the U.S. is total knee arthroplasty. Compared to 
existing drug therapy, total knee arthroplasty is very expensive, with average costs ranging between $25,000 and 
$60,000, and many patients (~20%) are dissatisfied with the outcome of this procedure. The earlier a patient 
receives TJA, the more likely it is that the knee implant will wear out over time and they will require revision 
surgery in following years. According to IQVIA, in 2018, there were approximately 1.3 million total knee 
arthroplasties performed in the U.S. 

Limitations of Common Treatments for OA

Oral therapies, such as NSAIDs, may offer adequate analgesia for early-stage OA pain, but they may be 
associated with serious side effects such as gastrointestinal bleeding, cardiovascular events and other adverse events.  
For example, SNRIs may have a role in worsening depression and the emergence of suicidality in certain patients. In 
addition to their serious side effects, oral drugs may provide limited pain relief and eventually can become 
insufficient to control OA pain for many patients as the disease progresses.

IA therapies, including immediate-release steroids and HA therapies, are generally well-tolerated but provide 
pain relief that is often insufficient or inadequate in duration. Historically, all IA steroid therapies approved for OA 
are immediate-release suspensions or solutions that leave the joint within hours to days, and they are rapidly 
absorbed systemically, which may result in undesirable side effects. For example, IA immediate-release steroid 
injections are associated with a rapid elevation of blood glucose in diabetics, which can be of clinical concern. 
While IA steroids demonstrate large initial analgesic effects relative to other therapies, as a result of leaving the joint 
quickly, IA steroids typically fail to confer pain relief of sufficient magnitude or duration. In addition, current 
clinical practice generally indicates that IA steroid suspensions not be administered more frequently than once every 
three months. Based on market research we have recently conducted, approximately 50% of patients surveyed who 
received IA immediate-release steroids were unsatisfied with the duration of benefit.

Despite estimated U.S. sales of approximately $1 billion in 2018, IA HA therapies, which are approved only 

for treatment in the knee, produce only marginally more effective pain relief than placebo and may have no 
discernible effect on a patient’s ability to carry out their daily activities. In treatment guidelines for non-operative 
management of knee OA published in May 2013, both the American Academy of Orthopaedic Surgeons (AAOS) 
and the American College of Rheumatology (ACR) concluded that data from then-current published studies did not 
show clinically meaningful effectiveness for HA injections. As a result, the guidelines do not recommend HA 
treatment for symptomatic knee OA due to lack of efficacy and, most recently, certain insurance carriers are no 
longer providing policy coverage of HA.

While the consequences from the overuse and abuse of opioids are well-known, these powerful medicines are 

still commonly prescribed for OA related pain, despite the fact that they are not an effective treatment for this 
chronic condition. A recent study estimated that as many as 70% of patients who are prescribed a medicine for OA 
pain will receive an opioid because physicians have so few effective treatment options. We further believe that the 
growing societal awareness of the risks posed by opioids may make new treatment options attractive for patients and 
physicians seeking non-opioid alternatives. Beyond the significant concerns related to the potential for overuse, 
abuse and unintentional overdose, opioid use is also associated with a host of other serious side effects including, 
respiratory depression, hypotension, constipation, cardiac events and, increasingly, death.

The Flexion Extended-Release Technology 

Our extended-release technology allows us to incorporate active pharmaceutical ingredients in PLGA 

microspheres. We believe we are the first company to administer PLGA microspheres into a human joint. PLGA is a 
proven extended-release delivery vehicle that is metabolized to carbon dioxide and water as it releases drug in the 
IA space and is used in other approved drug products and surgical devices. The technology is designed to enable 
novel formulations of pharmaceuticals by providing extended-release of drugs over time and the physical properties 
of the polymer-drug matrix can be varied to achieve specified drug loads and release rates. Key to the success of our 
IA therapies is the ability to maintain persistent concentrations of drug in the joint, while minimizing systemic 

8

exposure. Utilizing our PLGA microsphere technology, ZILRETTA is the first and only approved extended-release, 
IA therapy for patients confronting OA-related knee pain.  

We believe ZILRETTA and our technology will be protected primarily through a combination of patents, 

trade secrets and proprietary know-how, and we intend to seek marketing exclusivity for any approved products. A 
composition of matter patent has been issued by the United States Patent and Trademark Office, or U.S. PTO, for 
ZILRETTA, with a patent term into 2031. The U.S. PTO has also issued two patents directed at the methods of 
manufacturing and using ZILRETTA with patent terms into 2031. Considerable expertise and effort were required 
to carry out the large body of original work underlying the formulation of ZILRETTA, including experimenting 
with, and observing the effects of over 50 steroid and PLGA formulations. We believe our extensive know-how and 
trade secrets relating to the manufacturing process for ZILRETTA, including those that relate to precise 
pharmaceutical release profiles, represent a meaningful entry barrier.

The Flexion Pipeline

Our pipeline strategy is to continue to study ZILRETTA in other areas and, if feasible, expand ZILRETTA’s 

product label to include additional indications and broaden its scope of administration, advance our other product 
candidates, FX201 and FX301, through clinical development and build a robust pipeline of additional locally 
administered therapies to address musculoskeletal conditions. 

FX201

FX201 is an IA gene therapy candidate which is designed to induce the local production of interleukin-1 
receptor antagonist (IL-1Ra), an anti-inflammatory protein. Preclinical data suggest that following injection of 
FX201, its genetic material is incorporated into local cells, and IL-1Ra is expressed in response to inflammation in 
the joint tissues. Inflammation is a known cause of pain, and chronic inflammation is thought to play a major role in 
the progression of OA. By persistently suppressing inflammation, we believe FX201 has the potential to both reduce 
pain and possibly arrest disease progression. In early October 2019, the FDA cleared the IND application for 
FX201, and we subsequently initiated a Phase 1 first-in-human trial. Nonclinical safety and efficacy data submitted 
in the IND application indicated that a single administration of FX201 was well-tolerated, had no significant 
biodistribution outside the target tissues, and pharmacology studies with the rat, mouse, and horse orthologues in 
animal models of OA showed symptomatic improvement and delay in disease progression. Positive data showing 
dose-dependent decreases in the severity of cartilage and bone lesions following anterior cruciate ligament 
transection in rats were presented at the American College of Rheumatology Annual Meeting in November 2019. 
The preclinical data established a potentially safe and efficacious starting dose for the Phase 1 single ascending dose 
study. The trial is expected to enroll approximately 15 - 24 patients who will be followed for 104 weeks, with initial 

9

 
readout anticipated in 2021. In March 2020, the first two patients were treated in the Phase 1 dose-escalation trial. 
We acquired the global rights to FX201 from GeneQuine Biotherapeutics GmbH, or GeneQuine, and have an 
exclusive license to the underlying intellectual property rights for human use of FX201 from Baylor College of 
Medicine, or Baylor.  

FX301

In September 2019, we acquired global rights to develop and commercialize XEN402, Xenon’s NaV1.7 
inhibitor known as funapide, for management of post-operative pain. Our FX301 preclinical product candidate 
consists of funapide formulated for extended release within a thermosensitive hydrogel, for administration as a 
peripheral nerve block for control of post-operative pain. The proprietary formulation of the thermosensitive 
hydrogel was developed in our Innovation Lab. Within minutes following injection, the thermosensitive formulation 
has been shown to transition from a liquid to a gel, an effect that we believe can provide local delivery of funapide 
near target nerves for up to a week. Unlike typical local anesthetics, the selective pharmacology of funapide has the 
potential to provide effective non-opioid pain relief for 3-5 days, while preserving extremity motor function, which 
is typically compromised by local anesthetic peripheral nerve block. As such, we believe FX301 could enable 
ambulation, rapid discharge, and early rehabilitation following musculoskeletal surgery. We are conducting 
preclinical toxicology studies, and if supportive, we anticipate filing an IND application to initiate FX301 clinical 
trials in 2021.

ZILRETTA – FDA Approved Product for the Management of OA Knee Pain

Key Regulatory Developments

On October 6, 2017, ZILRETTA received approval from the FDA for the management of OA pain of the 

knee. ZILRETTA is the first and only approved extended-release, IA therapy for OA knee pain. It is a non-opioid 
medicine that employs our proprietary microsphere technology to provide proven pain relief. The approval was 
based upon data from the pivotal Phase 3 clinical trial, a randomized, double-blind study which evaluated 484 
patients at 37 centers worldwide. The pivotal Phase 3 trial showed that ZILRETTA met the primary endpoint of pain 
reduction at Week 12, with statistically significant pain relief extending through Week 16. ZILRETTA’s label 
reflects its strong safety profile and states the most commonly reported adverse reactions (incidence ≥1%) in clinical 
studies included sinusitis, cough and contusions. 

In December 2018, we submitted a sNDA to the FDA to revise the product label for ZILRETTA to allow for 

repeat administration. The sNDA submission was based on data from a Phase 3b single-arm, open-label clinical 
trial. 

On December 26, 2019, we announced that the FDA approved the sNDA. The revised product label removed 
language which previously stated that ZILRETTA was “not intended for repeat administration” and replaced it with 
language stating that “the efficacy and safety of repeat administration of ZILRETTA have not been demonstrated.” 
FDA determined that because the data generated were not from a randomized, placebo-controlled clinical trial, the 
Phase 3b results were insufficient to warrant full removal of a LOU statement. The new label includes a study 
description and safety data from the Phase 3b repeat administration trial and nonclinical toxicology data from 
previously submitted single and repeat administration studies in non-diseased animals. In addition, the revised label 
removed a statement that described a single secondary exploratory endpoint in the original Phase 3 pivotal trial 
comparing ZILRETTA to immediate release TA crystalline suspension.

Summary of Active and Key Completed Clinical Trials 

Prior to FDA approval, we completed seven clinical trials evaluating ZILRETTA (also known as 

FX006) against either immediate release TA crystalline suspension, or TAcs, placebo (saline), or both in patients 
with OA of the knee. In total, 424 patients were treated with a single IA injection (32mg) of ZILRETTA in those 
trials.   

Active Clinical Trials

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• We believe ZILRETTA’s extended-release profile may also provide effective treatment for OA pain of the 

shoulder and adhesive capsulitis (AC), commonly referred to as “frozen shoulder”, and in December 2019, we 
initiated a double-blind, placebo-controlled Phase 2 trial to evaluate the efficacy of ZILRETTA in patients with 
either shoulder OA or AC. The study is expected to enroll up to 250 patients – approximately 135 with shoulder 
OA and 115 with shoulder AC.

The Phase 2 trial, known as the RANGE study, separates cohorts of patients by their diagnosis of shoulder OA 
or AC into two parallel groups. Patients in each cohort are randomized (1:1) to either a single intra-articular 
injection of ZILRETTA or normal saline. The primary endpoint for both cohorts of the trial is the magnitude of 
pain relief versus placebo as measured by the overall change in daily shoulder pain with movement score from 
baseline to 8 weeks post injection. Patients in each cohort are then stratified by baseline pain scores. Shoulder 
AC patients are further stratified by pain duration since onset, and they also utilize a home exercise program 
during the study.

Each participant will be evaluated for 24 weeks following injection. The trial is expected to be completed in 
2021.

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•

In May 2018, we initiated an open-label Phase 3b trial assessing the effect of a single administration of 
ZILRETTA on synovitis (inflammation of the synovial membrane) in patients with OA of the knee. Patients in 
the study undergo initial ultrasound examination and MRI scans with contrast of the index knee at baseline and 
then return to the clinic at Weeks 6 and 24 for MRI scans and other assessments. We completed a primary 
endpoint analysis of our open-label, single-arm, Phase 3b trial assessing the effect of a single administration of 
ZILRETTA on synovitis in patients with knee OA. The data indicate that treatment with ZILRETTA resulted in 
a significant reduction (>50%) in synovial tissue volume at Week 6 compared to baseline (N=89 patients). 
These patients also reported improvements in pain and function scores over this time period. Patients continued 
to be followed in the trial to capture additional, longer-term exploratory measures as synovitis, or inflammation 
of the synovial membrane, is believed to play an important role in the progression of OA.

Additional Completed Studies

In February 2019, results from an open-label Phase 3b clinical trial evaluating the safety and efficacy of repeat 
administration of ZILRETTA in patients with OA of the knee were published in the peer-reviewed 
journal, Rheumatology and Therapy.  The data indicated that repeat administration of ZILRETTA for treatment 
of OA knee pain was safe and well tolerated with no deleterious impact on cartilage or joint structure observed 
through X-ray analysis conducted at baseline and Week 52. The primary endpoint of the study was the safety 
and tolerability of repeat administration of ZILRETTA in patients with symptomatic OA of the knee. The 
patients enrolled in the study generally had longstanding and extensive disease, with more than two-thirds of the 
participants presenting with Kellgren-Lawrence (KL) Grade 3 (37.5%) or Grade 4 (30.3%), the most 
radiographically severe form of OA.  The data also indicate that the magnitude and duration of pain relief 
experienced by patients after both the first and second injections was comparable and similar to the clinical 
benefit of ZILRETTA in the pivotal Phase 3 trial.  These data served as the basis for our aforementioned sNDA 
and subsequent label update.

In April 2019, we announced that results from a post-hoc analysis of data from the pivotal Phase 3 trial of 
ZILRETTA were published in Advances in Therapy. The findings indicated that patients with unilateral OA 
knee pain experienced significant and durable pain relief with a single intra-articular injection of ZILRETTA 
compared to TAcs as measured by ADP scores. These results suggest that bilateral knee pain may have been a 
confounding factor in the pivotal trial, which assessed the impact of ZILRETTA treatment in only one knee.

At the 2019 Osteoarthritis Research Society International World Congress (OARSI) held in May, we presented 
positive results from the Phase 2 pharmacokinetic (PK) study evaluating ZILRETTA in patients with hip OA. 
The data showed PK profiles consistent with previous studies in the knee. Additionally, we presented a poster 
on the previously published Phase 3b data indicating repeat administration of ZILRETTA resulted in substantial 
improvements in OA knee pain and had no deleterious impact on cartilage or joint structure. We also gave an 

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•

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•

•

encore poster presentation of data from an in vitro study, which suggests that TA can have dose-dependent 
chondroprotective effects on inflamed and injured cartilage.

In May 2019, we announced that results from a pooled analysis of data from three Phase 2/3 randomized 
clinical trials on the use of rescue medications with ZILRETTA were published in the peer-reviewed journal, 
Pain and Therapy. The analysis showed that the overall number of rescue medication tablets used per day 
through Week 24 was significantly less for ZILRETTA compared to both saline-placebo (LSM difference, 
−0.43) and immediate-release TAcs (–0.24). The safety profile of ZILRETTA in this pooled analysis was 
consistent with that of the pivotal Phase 3 trial. 

Also in May 2019, we paused enrollment in a Phase 3 trial of ZILRETTA in hip OA pain due to a non-safety 
related issue which resulted in the inability to deliver a full dose in a small number of trial participants. In 
November, we determined that an exploratory study designed to resolve the issue was unsuccessful, and as a 
result, we made the decision to discontinue the Phase 3 trial.

In July 2019, we presented new findings from a post-hoc subgroup analysis based onKL Grade of the open-
label Phase 3b repeat administration trial of ZILRETTA in patients with knee OA at the American Orthopaedic 
Society for Sports Medicine (AOSSM). The analysis, which evaluated the efficacy of initial and repeat 
administration of ZILRETTA in patients with symptomatic knee OA ranging in radiographic severity from KL 
Grades 2 to 4, indicated that ZILRETTA consistently reduced OA knee pain for at least 12 weeks after each 
injection, regardless of KL Grade. The incidence of treatment emergent adverse events, or AEs were similar 
across all KL Grades and the most commonly reported AEs were consistent with those reported in previous 
clinical studies of ZILRETTA.

In October 2019, we announced that results from a Phase 2a study evaluating the safety and systemic exposure 
of concurrent injections of ZILRETTA in patients with bilateral knee OA were published in the peer-reviewed 
journal, Therapeutic Advances in Musculoskeletal Disease. Findings from the open-label randomized study 
showed that concurrent, bilateral administration of ZILRETTA appeared safe and well tolerated, resulting in 
reduced systemic exposure and substantially lower plasma concentrations of TA compared to immediate-release 
TAcs.

Manufacturing

We believe that the multifaceted nature of PLGA drug product manufacturing and the limited number of 

capable contract manufacturing companies that offer PLGA drug product manufacturing creates an entry barrier. 
The technology is designed to enable novel formulations of pharmaceuticals by providing extended-release of drugs 
over time and the physical properties of the polymer-drug matrix can be varied to achieve specified drug loads and 
release rates.

We utilize contract manufacturers to produce the drug substances and drug products used in ZILRETTA. 
Manufacture of PLGA microspheres is a complex process and there are a limited number of contract manufacturing 
sites with PLGA experience. Our proprietary injectable IA extended-release technology allows us to incorporate 
pharmaceuticals in PLGA microspheres, such as TA, in the case of ZILRETTA, as well as potentially other product 
candidates. Following extensive development programs, we have established that a single injection of ZILRETTA 
sustains local concentrations of TA in the joint for several months. The ZILRETTA microsphere PLGA formulation 
has gone through numerous iterations and has been optimized to release the drug over an extended period of time. In 
developing this unique combination of manufacturing process and formulation, we have established numerous trade 
secrets that relate to precise pharmaceutical release profiles.

The active pharmaceutical ingredient in ZILRETTA, TA, is manufactured and supplied by Farmabios SpA in 

accordance with current Good Manufacturing Practice, or cGMP, standards. This supplier is subject to regular 
inspections by the FDA. The PLGA material used in the manufacture of ZILRETTA is supplied by Evonik 
Corporation, or Evonik. In November 2016, we entered into a Supply Agreement with Evonik for the purchase of 
PLGA for clinical and commercial supply of ZILRETTA. The initial term of the Supply Agreement is until July 
2021 and will renew for two successive two-year terms upon mutual written consent by both parties.  Under the 
Supply Agreement, we are bound to purchase PLGA from Evonik at certain minimum purchase amounts, which 

12

decrease over time, and at a specified price per gram, subject to adjustment from time to time, including due to 
changes in price indices and in the event the initial term of the Supply Agreement is extended.  Upon termination of 
the Supply Agreement (other than termination due to the bankruptcy of either Evonik or us) we are obligated to pay 
the costs associated with the binding supply forecast provided to Evonik. 

In August 2015, we entered into a Manufacturing Agreement with Patheon U.K. Limited, or Patheon, for the 

manufacture of clinical and commercial supplies of ZILRETTA finished drug product.  In connection with the 
agreement, Patheon undertook certain technical transfer activities and construction services to prepare its United 
Kingdom facility for the manufacture of ZILRETTA in dedicated manufacturing suites.  The initial term of our 
Manufacturing Agreement with Patheon is until October 2027. We may terminate this agreement upon one month’s 
notice if a regulatory authority causes the withdrawal from, or halts development of, ZILRETTA (in either case for 
reasons outside our reasonable control) in the United States or any other market that represents 80% of our overall 
sales. We may also terminate this agreement at any time for convenience by providing 24 months’ notice. Either we 
or Patheon may terminate this Agreement in the event of (a) an unremedied material breach or bankruptcy of the 
other party, (b) if a material force majeure event remains uncured for a period of more than 90 days and (c) the 
granting of a permanent injunction to a third party claiming intellectual property infringement of ZILRETTA in the 
United States or UK. Upon termination of this agreement, we are obligated to pay for the costs associated with the 
removal of our manufacturing equipment and for Patheon’s termination costs up to a specified maximum amount.

Commercial Strategy

We have established a commercial infrastructure designed to drive the adoption and sales of ZILRETTA with 
the approximately 10,500 prescribers who treat approximately 70% of patients diagnosed with OA pain of the knee 
who receive an IA treatment. Of these prescribers, approximately 80% are orthopedists and rheumatologists. We 
distribute ZILRETTA through a limited network of third-party specialty distributors, a specialty pharmacy, group 
purchasing organizations and other third parties. While we believe that the United States represents the most 
attractive market for ZILRETTA, we continue to evaluate opportunities and potential partnerships to develop and 
commercialize ZILRETTA in territories outside the United States where we believe there is the potential for value-
based pricing and reimbursement.

Of patients who are treated for OA pain of the knee with an IA injection, we estimate that approximately 70% 

receive IA injections from orthopedic surgeons or their attendant physician extenders (i.e. physician assistants and 
nurse practitioners). Approximately 8% of patients receive IA injections from physical medicine and rehabilitation 
specialists and rheumatologists, and approximately 7% of patients are treated by sports medicine specialists. 
Approximately 10% are treated by primary care physicians. The remaining IA injections are administered by a wider 
array of health care providers, including physician assistants and nurse practitioners.  

Competition

Our industry is highly competitive and subject to rapid and significant technological change. The large size 
and expanding scope of the pain market makes it an attractive therapeutic area for biopharmaceutical businesses. 
Our potential competitors include pharmaceutical, biotechnology, medical device and specialty pharmaceutical 
companies. Several of these companies have robust drug pipelines, readily available capital and established research 
and development organizations. We believe our success will be driven by our ability to develop and commercialize 
treatment options that make a meaningful difference for patients with musculoskeletal conditions, beginning with 
OA.  

The key competitive factors that could affect the success of ZILRETTA’s commercialization are likely to be 

efficacy, safety, price and the availability of reimbursement from government and other third-party payers. 
Immediate-release steroids and HAs are currently the two marketed classes of IA products that compete directly 
with ZILRETTA. 

Also available are stem cell and platelet rich plasma, or PRP, injections, but these require on site preparation 

from tissue or blood taken from the patient, have generated questionable efficacy in controlled clinical trials, and we 
believe they are unlikely to be a broadly embraced therapeutic option for OA patients. Because these are minimally 
manipulated autologous therapies, they do not require and have not received FDA review or approval. For that 

13

reason, they are generally not reimbursed by payers and patients must pay out of pocket to receive these therapies. 
Furthermore, the American Association of Hip & Knee Surgeons issued a position statement indicating that it cannot 
recommend biologic therapies, including stem cell and PRP injections, for the treatment of advanced hip or knee 
arthritis. The American Academy of Hip and Knee Surgeons (AAHKS) and ACR recently issued guidelines strongly 
recommending against use of IA stem cell therapy and PRP for the treatment of OA.

In addition to marketed IA medications for OA, other companies have OA product candidates in advanced 

stages of clinical development. These product candidates include:

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•

•

Anika Therapeutics, Inc.’s Cingal®, which is a mixture of Anika’s Monovisc combined with a low dose 
of a commonly used immediate-release steroid. Anika filed a Pre-Market Application with the FDA for 
Cingal based on a single pivotal clinical trial. In December 2015, Anika announced that due to the 
steroid component of the product, it needed to file this product candidate under an NDA. In June 2018, 
Anika announced Cingal did not achieve statistical significance at the primary endpoint of 26 weeks in 
an active comparator study. Subsequently, Anika completed an extension study to 39 weeks and 
announced an intention to include the data in a package for a meeting with the FDA planned for the first 
quarter of 2019. In February 2019, Anika announced that, based on their discussions with the FDA, they 
will need to conduct another Phase 3 clinical trial before they can potentially obtain approval for Cingal 
in the U.S. Anika announced plans to conduct a pilot study to evaluate the full-scale Phase 3 trial 
design. Anika previously indicated they expect to initiate the pilot study in the first half of 2020.  

Kolon TissueGene, Inc.’s Invossa™, which is a combination of human allogeneic chondrocytes and 
TGF-β1 transfected allogeneic chondrocytes. In November 2018, Kolon TissueGene announced they 
enrolled the first patient in a pivotal U.S. Phase 3 trial. In April 2019, the FDA suspended the U.S. 
Phase 3 trial due to a Chemistry, Manufacturing, and Controls (CMC) concern.

Ampio Pharmaceuticals, Inc.’s Ampion™, which is a derivative of human serum albumin, is described 
as having anti-inflammatory properties, and is formulated for immediate-release. In 2018, the FDA 
provided guidance that Ampio should complete an additional Phase 3 trial of KL4 severe OA of the 
knee patients carried out under Special Protocol Assessment to support a Biologics License Application, 
or BLA. Ampio previously indicated it expects its Phase 3 trial to be completed in Q1 2020.

Centrexion Therapeutics Corporation’s CNTX-4975, which is a synthetic, ultra-pure injection of trans-
capsaicin.  Centrexion previously indicated that it expects results from its Phase 3 VICTORY-1 trial and 
VICTORY-3 trial in Q1 2020 and results from its Phase 3 VICTORY-2 trial in Q3 2020.

Samumed’s SM04690 (lorecivivint), a small molecule inhibitor of the Wnt pathway is under 
development as a potential disease modifying drug. In May 2019, Samumed commenced its first Phase 
3 pivotal trial, STRIDES-XRAY, for lorecivivint. Samumed previously indicated that the estimated trial 
completion date is December 2020.

A number of investigational nerve growth factor antibodies are in development. In January 2019, Pfizer 
and Lilly announced results from a second Phase 3 study showing that the tanezumab 5 mg treatment 
arm met all three co-primary endpoints at 24 weeks, demonstrating statistically significant improvement 
in pain and function compared with those receiving placebo. In contrast, in the 2.5 mg treatment arm, 
patients’ overall assessment of their OA was not statistically different than placebo. Rapidly progressive 
OA was seen in 2.1% of tanezumab-treated patients and was not observed in the placebo arm. In 
December 2019, Pfizer filed a U.S. regulatory submission with the FDA for tanezumab 2.5mg SC in 
patients with moderate to severe OA. Teva and Regeneron’s fasinumab is in Phase 3 development, with 
three trials underway, and key data are expected in 2020.

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•

•

•

In October 2019, Taiwan Liposome Company announced the initiation of a Phase 3 trial for TLC599, 
which is a liposomal formulation of dexamethasone sodium phosphate. The company previously 
announced that its estimated primary completion date for the trial is August 2021. 

Servier and Galapagos NV’s S201086/GLPG1972, an ADAMTS-5 inhibitor, is currently in Phase 2 
clinical development.

In February 2020, UNITY Biotechnology announced the Phase 2 study of UBX0101 in patients with 
moderate-to-severe knee OA was fully enrolled with 183 patients. Both 12- and 24-week results are 
expected in the second half of 2020.UBX0101 is a senolytic small molecule inhibitor of the MDM2/53 
protein interaction, which selectively targets the senescent cells that accumulate in osteoarthritic knee 
tissue and aimed at treating an underlying cause of the disease.

Intellectual Property/Patents and Proprietary Rights 

Intellectual Property and Exclusivity

We are building a broad, worldwide intellectual property portfolio to protect the proprietary position of 

ZILRETTA, our product candidates and technology through a combination of patents, trade secrets, proprietary 
know-how, FDA exclusivity and contractual restrictions on disclosure.

Patents and Patent Applications

We are building a broad, worldwide intellectual property portfolio to protect the proprietary position of 
ZILRETTA and our product candidates by, among other methods, filing U.S. and foreign patent applications related 
to our proprietary technology, inventions and improvements that are important to the development of our business. 
We actively apply for, maintain, and plan to defend and enforce, as needed, our internally developed and externally 
licensed or acquired patent rights. Furthermore, we continue to search for and evaluate opportunities to in-license 
intellectual property relevant to our business. 

ZILRETTA

We own three U.S. ZILRETTA patents as well as counterpart foreign patents and patent applications covering 

composition of matter, methods of manufacture and methods of use. Our U.S. ZILRETTA patents have expiration 
dates in 2031. The ZILRETTA composition of matter invention is the result of several unique discoveries relating to 
a narrow drug load specification, a certain release profile of polymers, specific polymer weights and ratios and 
clinical efficacy observed within a dose-range. The U.S. patents directed to ZILRETTA’s composition of matter and 
methods of use are listed in the FDA Orange Book. We also have pending U.S. applications directed at compositions 
of matter similar to ZILRETTA, as well as methods of making and using the same, if resulting in an issued patent, 
could provide additional related claims expiring in 2031.

In 2019, we had a patent granted in South Korea, further expanding our global intellectual property portfolio 
including patents in Australia, Canada, China, Indonesia, Japan, Mexico, New Zealand, Saudi Arabia, the Russian 
Federation, Singapore, South Africa, Taiwan and Ukraine. These foreign patents cover the composition of matter, 
methods of manufacturing and methods of using ZILRETTA and are similar in scope to the protection in the U.S. 
described above. In addition, we are continuing to prosecute our patent applications pending in Europe and 
additional countries throughout the world directed to ZILRETTA and related inventions.  

We have also in-licensed intellectual property, owned by SwRI, which gives us exclusive rights to SwRI 
patents covering our proprietary microsphere manufacturing technology used in the production of ZILRETTA. 
These patents are scheduled to expire in 2025.

FX201 

In December 2017, we acquired the global rights to FX201 from GeneQuine. As part of the transaction with 
GeneQuine, we became the direct exclusive licensee of certain foundational patents, patent applications and other 
proprietary rights owned by Baylor that are related to FX201 for human applications. These patents generally cover 

15

the composition of matter and method of use of FX201 in the treatment of OA. In June 2019, the U.S. PTO issued 
patent number 10,301,647, which covers the composition of matter and method of use of FX201 in the treatment of 
OA with a term through January of 2033. In addition, the Baylor patents related to FX201 are issued in Europe, with 
an expiry date in 2032, and in Australia, Japan, China and Eurasia with expiry dates in 2033. We are continuing to 
prosecute the Baylor patent applications related to FX201 which are pending in Canada and India. Further, we have 
a pending patent application covering effective dosages of FX201 in the treatment of OA in humans, which is 
expected to provide protection until 2039.

FX301

In September 2019, we acquired global rights to develop and commercialize funapide from Xenon, which we 

have formulated for extended release with our proprietary thermosensitive hydrogel as FX301. As part of the 
transaction with Xenon, we acquired foundational patents and patent applications covering the composition of 
matter, methods of use and methods of manufacture related to funapide. We own patents directed to funapide 
granted in the U.S. as well as Australia, Canada, China, Europe, Hong Kong, Mexico and New Zealand with expiry 
dates in 2030. In addition, we have a pending patent application covering composition of matter, method of use and 
method of manufacture for FX301, which is expected to provide protection until 2039. 

Trade Secrets and Proprietary Information

The ZILRETTA microsphere PLGA formulation has been refined and optimized to deliver the drug substance 

released over an extended period of time. In developing this unique combination of manufacturing process and 
formulation, we have established numerous trade secrets, including those that relate to a precise pharmaceutical 
release profile. In addition, due to the complexity of the extended-release technology and the time, costs and 
technical risks involved in demonstrating bioequivalence through clinical trials, we believe that the ability of 
manufacturers to gain market approval for generic alternatives to ZILRETTA upon expiration of our patents and 
FDA exclusivity will be challenging.

We seek to protect our proprietary information, including our trade secrets and proprietary know-how, by 

requiring our employees to execute a Proprietary Information, Inventions, Non-Solicitation, and Non-Competition 
Agreement upon the commencement of their employment. Consultants and other advisors are required to sign 
consulting agreements. These agreements generally provide that all confidential information developed or made 
known during the course of the relationship with us be kept confidential and not be disclosed to third parties except 
in specific circumstances. In the case of our employees, the agreements also typically provide that all inventions 
resulting from work performed for us, utilizing our property or relating to our business and conceived or completed 
during employment shall be our exclusive property to the extent permitted by law. Further, we require 
confidentiality agreements from entities that receive our confidential data or materials.

Intellectual Property Agreements

Southwest Research Institute Manufacturing® (SwRI) License  

In July 2014, we executed an exclusive worldwide licensing agreement with SwRI to utilize proprietary 

microsphere manufacturing technologies for production of our extended-release drug candidates, including 
ZILRETTA. The SwRI technologies employ a uniquely controlled and continuous atomizing technology that 
facilitated scale-up of commercial supply. This exclusive agreement provides for an expanded field of use in a 
variety of musculoskeletal disorders, as well as broader polymer and steroid ranges, which offers the flexibility to 
potentially explore different doses, disease indications, and drug-PLGA combinations. We have no further payment 
obligations following the amendment executed by the parties in February 2017 and the license remains in effect 
through patent term expiry. 

FX201 Related Agreements

In December 2017, we acquired the global rights to develop and commercialize FX201.  As part of the asset 

purchase transaction with GeneQuine, we made an upfront payment of $2.0 million.  In 2018, we paid GeneQuine a 
$750,000 milestone payment for initiating a GLP toxicology study of FX201.  In addition, we paid GeneQuine a 

16

$750,000 payment in November 2019 following the FDA acceptance of the IND application for FX201. This 
milestone was recognized as research and development expense in the fourth quarter of 2019. The next milestone of 
$2.5 million was achieved in March 2020 when the first patient was treated in the Phase 1 clinical trial.  We may 
also be required to make additional milestone payments during the development of FX201, including up to $4.5 
million through the Phase 2 proof of concept, or PoC, clinical trial and, following successful PoC, up to an 
additional $51.5 million in development and global regulatory approval milestone payments.  As part of the 
transaction with GeneQuine, we became the direct licensee of certain underlying Baylor patents and other 
proprietary rights related to FX201 for human applications.  The Baylor license agreement grants us an exclusive, 
royalty-bearing, worldwide right and license (with a right to sublicense) for human applications under its patent and 
other proprietary rights directly related to FX201, with a similar non-exclusive license to certain Baylor intellectual 
property rights that are not specific to FX201.  The license agreement with Baylor includes a low single-digit royalty 
on net sales of FX201 and requires us to use reasonable efforts to develop FX201 according to timelines set out in 
the license agreement.  In December 2017, we also entered into a Master Production Services Agreement with 
SAFC Carlsbad, Inc., a part of MilliporeSigma, for the manufacturing of preclinical and initial clinical supplies of 
FX201. In addition, we recently entered into a manufacturing agreement that secures clinical trial supply of FX201 
through Phase 3 clinical trials.   

FX301 Related Agreements

In September 2019, we acquired from Xenon, global rights to develop and commercialize funapide formulated 

for extended release with our novel, proprietary thermosensitive hydrogel under our preclinical program known as 
FX301.. As part of the asset purchase transaction with Xenon, we made an upfront payment to Xenon of $3.0 
million.  We may also be required to make additional milestone payments during the development of FX301, 
including up to $9.0 million through initiation of a Phase 2 proof of concept (PoC) clinical trial and, following 
successful PoC, up to $40.8 million in development and global regulatory approval milestone payments and up to an 
additional $75.0 million in sales-related milestone payments. The transaction was accounted for as an asset 
acquisition, as it did not qualify as a business combination.  The upfront fee was attributed to the intellectual 
property acquired and recognized as research and development expense in September 2019 as the FX301 product 
candidate had not been commercially approved and had no alternative future use. Future milestone payments earned 
prior to regulatory approval of FX301 will be recognized as research and development expense in the period when 
the milestone events become probable of being achieved. Future milestones earned subsequent to regulatory 
approval will be recognized as an intangible asset and amortized to expense over the estimated life of FX301. As of 
December 31, 2019, no milestones under the arrangement had been achieved. As part of the transaction, we became 
the direct licensee of certain underlying Xenon patents and other proprietary rights related to funapide for human 
applications.  The Xenon agreement grants us an exclusive, royalty-bearing, world-wide right and license (with a 
right to sublicense) for human applications under its patents directly related to funapide, with a similar royalty-free 
license to other Xenon proprietary rights directly related to funapide. The agreement with Xenon includes a tiered 
royalty ranging from mid-single digits to low double digits that is based on aggregate annual net sales of FX301 and 
requires us to use reasonable efforts to develop FX301 according to timelines set out in the agreement.  

Government Regulation and Product Approval

Government authorities in the United States at the federal, state and local level, and in other countries 
extensively regulate, among other things, the research, development, testing, manufacture, quality control, approval, 
labeling, packaging, storage, record-keeping, promotion, advertising, distribution, post-approval monitoring and 
reporting, marketing and export and import of products such as those we are developing and commercializing. 

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U.S. Biopharmaceutical Product Development Process

In the United States, the FDA regulates biopharmaceutical products under the Federal Food, Drug, and 
Cosmetic Act, or FDCA, the Public Health Service Act, or PHSA, and implementing regulations. Biopharmaceutical 
products are also subject to other federal, state and local statutes and regulations. The process of obtaining 
regulatory approvals and the subsequent compliance with appropriate federal, state, local and foreign statutes and 
regulations requires the expenditure of substantial time and financial resources. Failure to comply with the 
applicable requirements at any time during the product development process, approval process or after approval, 
may subject an applicant to a variety of administrative or judicial sanctions, such as the FDA’s refusal to approve 
pending applications, withdrawal of an approval, imposition of a clinical hold, issuance of warning letters, product 
recalls, product seizures, total or partial suspension of production or distribution injunctions, fines, refusals of 
government contracts, restitution, disgorgement of profits or civil or criminal penalties. The process required by the 
FDA before a biopharmaceutical product may be marketed in the United States generally involves the following:

•

•

•

•

•

•

•

•

completion of preclinical laboratory tests, animal studies and formulation studies according to Good 
Laboratory Practices, or GLP, or other applicable regulations;

submission to the FDA of an investigational new drug, or IND, application, which must become 
effective before human clinical trials may begin;

approval by an independent institutional review board, or IRB, at each clinical site before each trial may 
be initiated;

performance of adequate and well-controlled human clinical trials according to the FDA’s laws and 
regulations pertaining to the conduct of human clinical studies, collectively referred to as Good Clinical 
Practices, or GCP, and according to the International Council for Harmonization, or ICH, GCP 
guidelines, to establish the safety and efficacy of the proposed biopharmaceutical product for its 
intended use;

submission to the FDA of an NDA for a proposed new drug product or a Biologics License Application, 
or BLA, for a biological product;

satisfactory completion of an FDA inspection of the manufacturing facility or facilities where the 
biopharmaceutical product is produced and tested to assess compliance with the FDA’s cGMP 
requirements, to assure that the facilities, methods and controls are adequate to preserve the 
biopharmaceutical product’s identity, strength, quality and purity;

potential FDA audit of the non-clinical and clinical trial sites that generated the data in support of the 
NDA or BLA; and

FDA review and approval or licensure of the NDA or BLA.

The lengthy process of seeking required approvals and the continuing need for compliance with applicable 

statutes and regulations require the expenditure of substantial resources and approvals are inherently uncertain.

Before testing any compounds with potential therapeutic value in humans, the biopharmaceutical product 

candidate enters the nonclinical testing stage, also referred to as preclinical testing. Preclinical tests include 
laboratory evaluations of product chemistry, toxicity and formulation, as well as animal studies to assess the 
potential safety and activity of the biopharmaceutical product candidate. The conduct of the preclinical tests must 
comply with federal regulations and requirements including GLP.  The sponsor must submit the results of the 
preclinical tests, together with manufacturing information, analytical data, any available clinical data or literature 
and a proposed clinical protocol, among other documentation, to the FDA as part of the IND application. The IND 
automatically becomes effective 30 days after receipt by the FDA, unless the FDA raises concerns or questions 
related to one or more proposed clinical trials and places the trial on a clinical hold within that 30-day time period. 
In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinical trial can 
begin. The FDA may also impose clinical holds on a biopharmaceutical product candidate at any time before or 
during clinical trials due to safety concerns or non-compliance with applicable laws or regulations. 

Clinical trials involve the administration of the biopharmaceutical product candidate to healthy subjects or 

patients with the target disease under the supervision of qualified investigators, generally physicians not employed 
by or under the trial sponsor’s control. Clinical trials are conducted under written study protocols detailing, among 
other things, the objectives of the clinical trial, dosing procedures, subject selection and exclusion criteria, and the 

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parameters to be used to monitor subject safety. Each protocol must be submitted to the FDA as part of the IND. 
Clinical trials must be conducted in accordance with the FDA’s regulations which reflect the ICH GCP 
requirements. Further, each clinical trial must be reviewed and approved by an IRB at, or servicing, each institution 
at which the clinical trial will be conducted. An IRB is charged with protecting the welfare and rights of trial 
participants and considers such items as whether the risks to individuals participating in the clinical trials are 
minimized and are reasonable in relation to anticipated benefits. The IRB also approves the informed consent form 
that must be provided to each clinical trial subject or his or her legal representative and must monitor the clinical 
trial until it is completed.

Clinical trials for biopharmaceutical product candidates are typically conducted in humans in three sequential 
phases that may overlap.  In Phase 1 clinical trials, the biopharmaceutical product is initially introduced into healthy 
human subjects and tested for safety or adverse effects, dosage, tolerance, metabolism, distribution, excretion and 
clinical pharmacology.  In Phase 2 clinical trials, the biopharmaceutical product is evaluated in a limited patient 
population to identify possible adverse side effects and safety risks, evaluate preliminarily the efficacy of the 
biopharmaceutical product for specific targeted indications and determine dosage tolerance, optimal dosage and 
dosing schedule for patients having the specific disease.  Once a biopharmaceutical product shows evidence of 
effectiveness and is found to have an acceptable safety profile in Phase 2 evaluations, Phase 3 clinical trials are 
undertaken to more fully evaluate clinical outcomes.  In Phase 3 clinical trials, the biopharmaceutical product is 
administered to an expanded patient population in adequate and well-controlled trials to generate sufficient data to 
statistically confirm the efficacy and safety of the biopharmaceutical product for approval, to establish the overall 
risk-benefit profile of the biopharmaceutical product and to provide adequate information for its labeling.

Post-approval studies, also referred to as Phase 4 clinical trials, may be conducted after initial marketing 

approval. These studies are used to gain additional experience from the treatment of patients in the intended 
therapeutic indication and may be required by the FDA as part of the approval process.

Progress reports detailing the status of biopharmaceutical product development and results of the clinical trials 
must be submitted at least annually to the FDA and written IND safety reports must be submitted to the FDA and the 
investigators for serious and unexpected adverse events or any finding from tests in laboratory animals that suggests 
a significant risk for human subjects or patients. Phase 1, Phase 2 and Phase 3 clinical trials may not be completed 
successfully within any specified period, if at all. The FDA or the sponsor or its data safety monitoring board (if 
applicable) may suspend a clinical trial at any time on various grounds, including a finding that the research subjects 
are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical 
trial at its institution if the clinical trial is not being conducted in accordance with the IRB’s requirements or if the 
biopharmaceutical product has been associated with unexpected serious harm to study subjects.

Concurrent with clinical trials, companies usually complete additional animal studies and must also develop 
additional information about the chemistry and physical characteristics of the biopharmaceutical product as well as 
finalize a process for manufacturing the product in commercial quantities in accordance with cGMP requirements. 
The manufacturing process must be capable of consistently producing quality batches of the biopharmaceutical 
product candidate and, among other things, the manufacturer must develop methods for testing the safety, identity, 
strength, quality and purity of the final biopharmaceutical product. Additionally, appropriate packaging must be 
selected and tested, and stability studies must be conducted to demonstrate that the biopharmaceutical product 
candidate does not undergo unacceptable deterioration over its shelf life.

FDA Review and Approval Processes 

The results of product development, preclinical studies and clinical studies for claimed indications as well as 

descriptions of the manufacturing process and controls, analytical tests conducted on the biopharmaceutical product, 
proposed labeling and other relevant information are submitted to the FDA as part of an NDA or BLA requesting 
approval to market the product. A supplement to an approved NDA or BLA is also required to be submitted for 
review when seeking major changes to manufacturing or labeling, including additional indications for use. 
Additionally, the results of product development, preclinical studies and clinical trials for the claimed indications in 
all relevant pediatric subpopulations and the support for dosing and administration for each pediatric subpopulation 
for which the product is safe and effective, are contained in an NDA or BLA. The FDA may grant deferrals for 
submission of pediatric data or full or partial waivers after the initial submission of a pediatric study plan following 
an end of Phase 2 meeting unless otherwise agreed upon by the FDA and the sponsor. The submission of an NDA or 

19

BLA is subject to the payment of substantial user fees; a waiver of such fees may be obtained under certain limited 
circumstances.

The FDA reviews all NDAs and BLAs submitted before it accepts them for filing and may request additional 

information rather than accepting the application for filing. Once the application is accepted for filing, the FDA 
begins an in-depth review. Under the goals and policies agreed to by the FDA under the Prescription Drug User Fee 
Act, or PDUFA, the FDA has 12 months after submission for a new molecular entity in which to complete its initial 
review and respond to the applicant, and eight months for a priority review application. In addition, the FDA has 10 
months after submission of an NDA for a non-new molecular entity in which to complete its initial review of a 
standard NDA and respond to the applicant, and six months for a priority review NDA. The FDA does not always 
meet its PDUFA goal dates for review of standard and priority review applications. The review process and the 
PDUFA goal date may be extended by additional three-month review periods whenever the FDA requests or the 
sponsor otherwise provides additional information or clarification regarding information already provided in the 
submission at any time during the review cycle.

The FDA reviews the NDA or BLA to determine, among other things, whether the proposed product is safe 

and effective for its intended use, and whether the product is being manufactured in accordance with cGMP to 
assure and preserve the product’s identity, strength, quality and purity. The FDA may refer applications for novel 
biopharmaceutical products which present difficult questions of safety or efficacy to an advisory committee, 
typically a panel that includes clinicians and other experts, for review, evaluation and a recommendation as to 
whether the application should be approved and under what conditions. The FDA is not bound by the 
recommendations of an advisory committee, but it considers such recommendations carefully when making 
decisions. During the approval process, the FDA also will determine whether a risk evaluation and mitigation 
strategy, or REMS, is necessary to assure the safe use of the biopharmaceutical product. If the FDA concludes a 
REMS is needed, the sponsor of the NDA must submit a proposed REMS; the FDA will not approve the application 
without a REMS, if required.

Before approving an NDA or BLA, the FDA will typically inspect the facilities at which the product is to be 

manufactured. When an inspection is undertaken, the FDA will not approve the product unless it determines that the 
manufacturing processes and facilities are in compliance with cGMP requirements and adequate to assure consistent 
production of the product within required specifications. Additionally, before approving an application, the FDA 
will typically inspect one or more clinical sites to assure compliance with FDA regulations regarding conduct of 
clinical trials for the product’s trials. If the FDA determines that the application, manufacturing process or 
manufacturing facilities are not acceptable, it will outline the deficiencies in a complete response letter to the 
applicant and often will request additional testing or information.

If a complete response letter is issued, the applicant may either resubmit the application, addressing all of the 

deficiencies identified in the letter, or withdraw the application.

If a product receives regulatory approval, the approval may be significantly limited to specific diseases and 

dosages or the indications for use may otherwise be limited, which could restrict the commercial value of the 
product. Further, the FDA may require that certain contraindications, warnings or precautions be included in the 
product labeling or REMS to assure safe use of the product through distribution or other controls. In addition, the 
FDA may require post approval studies, referred to as Phase 4 testing, which involves clinical trials designed to 
further assess a product’s safety and effectiveness and may require testing and surveillance programs to monitor the 
safety of approved products that have been commercialized. 

Post-Approval Requirements

Any products for which we receive FDA approval are subject to continuing regulation by the FDA, including, 

among other things, record-keeping requirements, reporting of adverse experiences with the product, providing the 
FDA with updated safety and efficacy information, product sampling and distribution requirements, complying with 
certain electronic records and signature requirements and complying with FDA promotion and advertising 
requirements. These promotion and advertising requirements include, among other things, standards for direct-to-
consumer advertising, prohibitions against promoting drugs for uses or in patient populations that are not described 
in the drug’s approved labeling (known as “off-label use”), rules for conducting industry-sponsored scientific and 
educational activities, and promotional activities involving the internet. Failure to comply with FDA requirements 
can have negative consequences, including adverse publicity, enforcement letters from the FDA, mandated 

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corrective advertising or communications with doctors, and civil or criminal penalties. Although physicians may 
prescribe legally available drugs for off-label uses, manufacturers may not market or promote such off-label uses.

We rely, and expect to continue to rely, on third parties for the production of clinical and commercial 

quantities of our products. Manufacturers of our products are required to comply with applicable FDA 
manufacturing requirements contained in the FDA’s cGMP regulations. cGMP regulations require, among other 
things, quality control and quality assurance as well as the corresponding maintenance of records and 
documentation. Drug manufacturers and other entities involved in the manufacture and distribution of approved 
drugs are also required to register their establishments with the FDA and certain state agencies, and are subject to 
periodic unannounced inspections by the FDA and certain state agencies for compliance with cGMP and other laws. 
Accordingly, manufacturers must continue to expend time, money, and effort in the area of production and quality 
control to maintain cGMP compliance. Discovery of problems with a product after approval may result in 
restrictions on a product, manufacturer, or holder of an approved NDA. These restrictions may include suspension of 
a product until the FDA is assured that quality standards can be met, continuing oversight of manufacturing by the 
FDA under a consent decree of permanent injunction, which frequently includes the imposition of costs and 
continuing inspections over a period of many years, as well as possible withdrawal of the product from the market. 
In addition, changes to the manufacturing process generally require prior FDA approval before being implemented. 

The FDA and other federal and state agencies closely regulate the promotion of drugs. Moreover, the FDA 

strictly regulates the promotional claims that may be made about drug and biologic products. In particular, a product 
may not be promoted for off label uses that are not approved by the FDA as reflected in the product’s approved 
packaging label or are otherwise truthful and not misleading statements. The FDA and other agencies actively 
enforce the laws and regulations prohibiting the promotion of off-label uses.

Other types of changes to the approved product, such as adding new indications and additional labeling 

changes, are also subject to further FDA review and approval.

Pharmaceutical Coverage, Pricing and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any biopharmaceutical product 
for which we obtain regulatory approval. In the United States and markets in other countries, sales of any products 
for which we receive regulatory approval for commercial sale will depend in part on the availability of coverage and 
adequate reimbursement from third-party payers.

In the United States, third-party payers include federal and state government payer programs, including 
Medicare and Medicaid, managed care organizations, private health insurers and other organizations. The process 
for determining whether a third-party payer will provide coverage for a drug product may be separate from the 
process for setting the price or reimbursement rate that the third-party payer will pay for the drug product. Third-
party payers may limit coverage to specific drug products on an approved list, or formulary, which might not include 
all of the FDA-approved drug products for a particular indication. Third-party payers are increasingly challenging 
the price and examining the medical necessity and cost-effectiveness of medical products and services, in addition to 
their safety and efficacy. We may need to conduct expensive pharmacoeconomic studies in order to demonstrate the 
medical necessity and cost-effectiveness of our products, in addition to the costs required to obtain FDA approvals. 
In addition, our biopharmaceutical products may not be considered medically necessary or cost-effective.

A third-party payer’s decision to provide coverage for a drug product does not imply that an adequate 
reimbursement rate will be approved. Further, one payer’s determination to provide coverage for a drug product 
does not ensure that other payers also will provide coverage or an adequate reimbursement rate for the drug product. 
Adequate third-party reimbursement may not be available to enable us to maintain price levels sufficient to realize 
an appropriate return on our investment in product development.

The cost of pharmaceuticals continues to generate substantial governmental and third-party payer scrutiny. We 

expect that the pharmaceutical industry will continue experiencing pricing pressures due to the trend toward 
managed healthcare, the increasing influence of managed care organizations and additional legislative proposals. 
Third-party payers are increasingly challenging the prices charged for medical products and services and examining 
the medical necessity and cost-effectiveness of medical products and services, in addition to their safety and 

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efficacy. If these third-party payers do not consider our products to be cost-effective compared to other available 
therapies, they may not cover our products after approval as a benefit under their plans or, if they do, the level of 
payment may not be sufficient to allow us to sell our products at a profit. The U.S. government, state legislatures 
and foreign governments have shown significant interest in implementing cost containment programs to limit the 
growth of government-paid healthcare costs, including price controls, restrictions on reimbursement and 
requirements for substitution of generic products for branded prescription drugs. Adoption of such controls and 
measures, and tightening of restrictive policies in jurisdictions with existing controls and measures, could limit 
payments for pharmaceuticals such as the drug candidates that we are developing and could adversely affect our net 
revenue and results.

Different pricing and reimbursement schemes exist in other countries. In the European Community, 
governments influence the price of pharmaceutical products through their pricing and reimbursement rules and 
control of national healthcare systems that fund a large part of the cost of those products to consumers. Some 
jurisdictions operate positive and negative list systems under which products may only be marketed once a 
reimbursement price has been agreed. To obtain reimbursement or pricing approval, some of these countries may 
require the completion of clinical trials that compare the cost-effectiveness of a particular drug candidate to 
currently available therapies. Other member states allow companies to fix their own prices for medicines but 
monitor and control company profits. The downward pressure on healthcare costs in general, and on prescription 
drugs in particular, has become very intense. As a result, increasingly high barriers are being erected to the entry of 
new products. In addition, in some countries, cross-border imports from low-priced markets exert a commercial 
pressure on pricing within a country. There can be no assurance that any country that has price controls or 
reimbursement limitations for drug products will allow favorable reimbursement and pricing arrangements for any 
company.

Additionally, in order to be eligible for certain federal agencies and grantees to purchase ZILRETTA, or to 

have it paid for with federal funds under the Medicaid and Medicare Part B programs, we participate in the 
Department of Veterans Affairs, or VA, Federal Supply Schedule, or FSS, pricing program. We are obligated 
through the FSS program to sell ZILRETTA through a FSS contract and charge a price that is no higher than the 
statutory Federal Ceiling Price, or FCP, to four federal agencies (VA, U.S. Department of Defense, Public Health 
Service, and Coast Guard). The FCP is based on the non-federal Average Manufacturer Price, which we will need to 
calculate and report to the VA on a quarterly and annual basis. These obligations contain extensive disclosure and 
certification requirements.  

Healthcare Reform

In the United States and foreign jurisdictions, there have been a number of legislative and regulatory changes 
to the healthcare system that could affect our future results of operations. In particular, there have been and continue 
to be a number of initiatives at the United States federal and state levels that seek to reduce healthcare costs, 
improve healthcare quality or expand access to healthcare.

In the United States, the Medicare Prescription Drug, Improvement, and Modernization Act of 2003, or the 

MMA, changed the way Medicare covers and pays for pharmaceutical products. The MMA expanded Medicare 
coverage to include outpatient prescription drug purchases made by the elderly by establishing Medicare Part D and 
introduced a new reimbursement methodology based on average sales prices for physician administered drugs under 
Medicare Part B. In addition, the MMA provided authority for limiting the number of drugs that would be covered 
in any therapeutic class under the Medicare Part D program. Cost reduction initiatives and other provisions of this 
legislation could decrease the coverage and reimbursement rate that we receive for ZILRETTA and any of our other 
approved products. While the MMA applies only to drug benefits for Medicare beneficiaries, private payers often 
follow Medicare coverage policy and payment limitations in setting their own reimbursement rates. Therefore, any 
reduction in reimbursement that results from the MMA may result in a similar reduction in payments from private 
payers.

In March 2010, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education 

Reconciliation Act of 2010, or collectively PPACA, was enacted as a sweeping law intended to broaden access to 
health insurance, reduce or constrain the growth of healthcare spending, enhance remedies against fraud and abuse, 
add new transparency requirements for healthcare and health insurance industries, impose new taxes and fees on the 

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health industry and impose additional health policy reforms. Among the provisions of PPACA of importance to our 
potential drug candidates are the following:

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an annual, non-deductible fee on any entity that manufactures or imports certain branded prescription 
drugs and biologic agents, apportioned among these entities according to their market share in certain 
government healthcare programs;

an increase in the rebates a manufacturer must pay under the Medicaid Drug Rebate Program to 23.1% 
and 13% of the average manufacturer price for branded and generic drugs, respectively;

a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program 
are calculated for drugs that are inhaled, infused, instilled, implanted or injected;

a new Medicare Part D coverage gap discount program, in which manufacturers must now agree to offer 
70% point-of-sale discounts to negotiated prices of applicable brand drugs to eligible beneficiaries 
during their coverage gap period, as a condition for the manufacturer’s outpatient drugs to be covered 
under Medicare Part D;

extension of manufacturers’ Medicaid rebate liability to covered drugs dispensed to individuals who are 
enrolled in Medicaid managed care organizations;

expansion of eligibility criteria for Medicaid programs by, among other things, allowing states to offer 
Medicaid coverage to additional individuals and by adding new mandatory eligibility categories for 
certain individuals with income at or below 133% of the Federal Poverty Level, thereby potentially 
increasing manufacturers’ Medicaid rebate liability;

expansion of the entities eligible for discounts under the Public Health Service pharmaceutical pricing 
program;

new requirements under the federal Open Payments program, created under Section 6002 of PPACA, 
and its implementing regulations, that manufacturers of drugs, devices, biologics and medical supplies 
for which payment is available under Medicare, Medicaid or the Children’s Health Insurance Program 
(with certain exceptions) report annually to Centers for Medicare and Medicaid Services, or CMS, 
information related to “payments or other transfers of value” made or distributed to physicians, as 
defined by such law, and teaching hospitals, and that applicable manufacturers and applicable group 
purchasing organizations report annually to CMS ownership and investment interests held by physicians 
(as defined above) and their immediate family members;

a requirement to annually report drug samples that manufacturers and distributors provide to physicians;

expansion of healthcare fraud and abuse laws, including the federal False Claims Act and the federal 
Anti-Kickback Statute, new government investigative powers, and enhanced penalties for non-
compliance;

an FDA-approval framework for follow-on biologic products;

a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct 
comparative clinical effectiveness research, along with funding for such research; and

establishment of a Center for Medicare & Medicaid Innovation at CMS to test innovative payment and 
service delivery models to lower Medicare and Medicaid spending, potentially including prescription 
drug spending.

There remain judicial and Congressional challenges to numerous provisions of PPACA.  Since January 2017, 

President Trump has signed two Executive Orders and other directives designed to delay the implementation of 
certain provisions of PPACA or otherwise circumvent some of the requirements for health insurance mandated by 
PPACA. Concurrently, Congress has considered legislation that would repeal or repeal and replace all or part of 
PPACA. While Congress has not passed comprehensive repeal legislation, several bills affecting the implementation 
of certain taxes under PPACA have been signed into law. The Tax Cuts and Jobs Act of 2017, or Tax Act, signed 
into law on December 22, 2017, includes a provision repealing, effective January 1, 2019, the tax-based shared 
responsibility payment imposed by PPACA on certain individuals that fail to maintain qualifying health coverage 
for all of part of a year commonly referred to as the “individual mandate”.  In addition, the 2020 federal spending 

23

package permanently eliminated, effective January 1, 2020, the PPACA-mandated “Cadillac” tax on high-cost 
employer-sponsored health coverage and medical device tax and, effective January 1, 2021, also eliminates the 
health insurer tax.  The Bipartisan Budget Act of 2018, or the BBA, among other things, amended PPACA, effective 
January 1, 2019, to close the coverage gap in most Medicare drug plans, commonly referred to as the “donut hole.” 
In December 2018, CMS published a new final rule permitting further collections and payments to and from certain 
PPACA qualified health plans and health insurance issuers under PPACA risk adjustment program in response to 
the outcome of federal district court litigation regarding the method CMS uses to determine this risk adjustment. On 
December 14, 2018, a Texas U.S. District Court Judge ruled that PPACA is unconstitutional in its entirety because 
the “individual mandate” was repealed by Congress as part of the Tax Act.  Additionally, on December 18, 2019, the 
U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling that the individual mandate was 
unconstitutional and remanded the case back to the District Court to determine whether the remaining provisions of 
the PPACA are invalid as well.  It is unclear how this decision, future decisions, subsequent appeals, and other 
efforts to repeal and replace PPACA will impact PPACA. 

In addition, since the PPACA was enacted, other legislative changes have been proposed and adopted that 
may impact the extent to which we are able to successfully commercialize any of our product candidates that receive 
regulatory approval. For example, in August 2011, then-President Obama signed into law the Budget Control Act of 
2011, which, among other things, created the Joint Select Committee on Deficit Reduction to recommend to 
Congress proposals in spending reductions. The Joint Select Committee on Deficit Reduction did not achieve a 
targeted deficit reduction, which triggered the legislation’s automatic reduction to several government programs. 
This includes aggregate reductions to Medicare payments to providers of, on average, two percent per fiscal year 
through 2029 unless Congress takes additional action. The American Taxpayer Relief Act of 2012, among other 
things, further reduced Medicare payments to several providers, including hospitals and cancer treatment centers, 
and increased the statute of limitations period for the government to recover overpayments to providers from three to 
five years.

There has been increasing legislative and enforcement interest in the United States with respect to specialty 

drug pricing practices, including at the federal level several recent U.S. Congressional inquiries and legislation 
designed to, among other things, increase drug pricing transparency, reduce the cost of drugs under Medicare, 
review relationships between pricing and manufacturer patient assistance programs, and reform government 
program drug reimbursement methodologies. At the federal level, the Trump administration’s budget proposal for 
fiscal year 2020 contains further drug price control measures that could be enacted during the budget process or in 
other future legislation, including, for example, measures to permit Medicare Part D plans to negotiate the price of 
certain drugs under Medicare Part B, to allow some states to negotiate drug prices under Medicaid, and to eliminate 
cost sharing for generic drugs for low-income patients. Further, the Trump administration released a “Blueprint”, or 
plan, to lower drug prices and reduce out of pocket costs of drugs that contains additional proposals to increase drug 
manufacturer competition, increase the negotiating power of certain federal healthcare programs, incentivize 
manufacturers to lower the list price of their products, and reduce the out of pocket costs of drug products paid by 
consumers. HHS has solicited feedback on some of these measures and has implemented others under its existing 
authority. For example, in May 2019, CMS issued a final rule to allow Medicare Advantage plans the option to use 
step therapy for Part B drugs beginning January 1, 2020. This final rule codified CMS’s policy change that was 
effective January 1, 2019. Although a number of these, and other measures may require additional authorization to 
become effective, Congress and the Trump administration have each indicated that it will continue to seek new 
legislative and/or administrative measures to control drug costs. Any reduction in reimbursement from Medicare or 
other government-funded programs may result in a similar reduction in payments from private payers. At the state 
level, legislatures have increasingly passed legislation and implemented regulations designed to control 
pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, 
restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, 
to encourage importation from other countries and bulk purchasing. The implementation of cost containment 
measures or other healthcare reforms may prevent us from being able to generate revenue, attain profitability, or 
commercialize ZILRETTA and any future products for which we receive regulatory approval.

We expect that PPACA reform, as well as other healthcare reform measures that have been and may be 
adopted in the future, may result in more rigorous coverage criteria and lower reimbursement, as well as additional 
downward pressure on the price that we receive for any approved product, including ZILRETTA. 

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Regenerative Medicine Advanced Therapies 

As part of the 21st Century Cures Act, Congress amended the FDCA to create the regenerative medicine 

advanced therapies, or RMAT, designation. The RMAT designation is intended to facilitate efficient development 
and expedite review of regenerative medicine advanced therapies, which are intended to treat, modify, reverse, or 
cure a serious or life-threatening disease or condition. RMAT covers cell therapies, gene therapies, therapeutic tissue 
engineering products, human cell and tissue products, and combination products using any such therapies or 
products. A sponsor may request that the FDA designate a regenerative medicine advanced therapy concurrently 
with or at any time after submission of an IND. The FDA has 60 calendar days to determine whether the criteria are 
met, including whether there is preliminary clinical evidence indicating the potential to address unmet medical needs 
for a serious or life-threatening disease or condition. A BLA for a regenerative medicine advanced therapy may be 
eligible for priority review or accelerated approval through surrogate or intermediate endpoints reasonably likely to 
predict long-term clinical benefit, or reliance upon data obtained from a meaningful number of clinical trial sites. 
Benefits of such designation also include early interactions with the FDA to discuss any potential surrogate or 
intermediate endpoint to be used to support accelerated approval. A regenerative medicine advanced therapy that is 
granted accelerated approval and is subject to post-approval requirements may fulfill such requirements through the 
submission of clinical evidence, clinical studies, patient registries, or other sources of real-world evidence, such as 
electronic health records; the collection of larger confirmatory data sets; or post-approval monitoring of all patients 
treated with such therapy prior to its approval.

Other U.S. Healthcare Laws and Compliance Requirements

In the United States, our activities are subject to regulation by various federal, state and local authorities in 

addition to the FDA, including CMS, other divisions of HHS (e.g., the Office of Inspector General), the United 
States Department of Justice and individual United States Attorney offices within the Department of Justice, and 
state and local governments. For example, various activities, including but not limited to sales, marketing and 
scientific/educational grant programs, must comply with the anti-fraud and abuse provisions of the Social Security 
Act, the federal Anti-Kickback Statute, the federal False Claims Act and similar state laws, each as amended. Failure 
to comply with such requirements could potentially result in substantial penalties to us. Even if we structure our 
programs with the intent of compliance with such laws, there can be no certainty that we would not need to defend 
against enforcement or litigation, in light of the fact that there is significant enforcement interest in pharmaceutical 
companies in the United States, and some of the applicable laws are quite broad in scope.

The federal Anti-Kickback Statute prohibits any person or entity, including a prescription drug manufacturer 

(or a party acting on its behalf), from knowingly and willfully soliciting, receiving, offering or providing 
remuneration, directly or indirectly, to induce or reward either the referral of business, or the furnishing, 
recommending, or arranging for the purchase, lease or order of a good, facility, item or service, for which payment 
may be made under a federal healthcare program, such as the Medicare or Medicaid program. This statute has been 
interpreted broadly to apply to arrangements between pharmaceutical manufacturers on the one hand and 
prescribers, purchasers, and formulary managers, among others, on the other. The term “remuneration” has been 
broadly interpreted to include anything of value, including for example, gifts, discounts, the furnishing of supplies or 
equipment, credit arrangements, payments of cash, waivers of payments, ownership interests and providing anything 
at less than its fair market value. 

Federal false claims and false statements laws, including the federal False Claims Act, prohibit, among other 

things, any person or entity from knowingly presenting, or causing to be presented, a false or fraudulent claim for 
items or services, including drugs, for payment to, or approval by, a federal healthcare program, including Medicare 
or Medicaid. The qui tam provisions of the federal False Claims Act allow a private individual to bring a civil action 
on behalf of the federal government alleging that the defendant has submitted a false claim to the federal 
government, and to share in any monetary recovery. In recent years, the number of suits brought by private 
individuals has increased dramatically. 

The Health Insurance Portability and Accountability Act of 1996, or HIPAA, created several new federal 

crimes, including healthcare fraud and false statements relating to healthcare matters. The healthcare fraud statute 
prohibits knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit 
program, including third-party payers. The false statements statute prohibits knowingly and willfully falsifying, 

25

concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in 
connection with the delivery of or payment for healthcare benefits, items or services.

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 CMS information related to payments or other transfers of 
value made to physicians, as defined by such law, and teaching hospitals, as well as ownership and investment 
interests held by physicians and their immediate family members.

Also, many states have similar laws and regulations, such as anti-kickback and false claims laws that may be 

broader in scope and may apply regardless of payer, in addition to items and services reimbursed under Medicaid 
and other state programs. Additionally, we may be subject to state laws that require pharmaceutical companies to 
comply with the federal government’s and/or pharmaceutical industry’s voluntary compliance guidelines, state laws 
that require drug manufacturers to report information related to payments and other transfers of value to physicians 
and other healthcare providers or marketing expenditures, as well as state and foreign laws governing the privacy 
and security of health information, many of which differ from each other in significant ways and often are not 
preempted by HIPAA. 

HIPAA, as amended by the Health Information Technology and Clinical Health Act of 2009, and their 
respective implementing regulations, impose requirements on certain healthcare providers, health plans, and 
healthcare clearinghouses, known as covered entities, as well as their business associates that perform services 
involving the use or disclosure of individually identifiable health information, relating to the privacy, security and 
transmission of individually identifiable health information.

Where our activities involve foreign government officials, they may also potentially be subject to the Foreign 
Corrupt Practices Act, which prohibits companies and individuals from engaging in specified activities to obtain or 
retain business or to influence a person working in an official capacity. Under the FCPA, it is illegal to pay, offer to 
pay, or authorize the payment of anything of value to any foreign government official, governmental staff members, 
political party or political candidate in an attempt to obtain or retain business or to otherwise influence a person 
working in an official capacity. The FCPA also requires public companies to make and keep books and records that 
accurately and fairly reflect the transactions of the corporation and to devise and maintain an adequate system of 
internal accounting controls.  

If we seek to have a product covered in the United States by the Medicaid programs, various obligations, 
including government price reporting, are required under the Medicaid rebate requirements of the Omnibus Budget 
Reconciliation Act of 1990 and the Veterans Health Care Act of 1992, each as amended, which generally require 
products to be offered at substantial rebates/discounts to such programs and certain purchasers. In order to distribute 
products commercially, we must comply with state laws that require the registration of manufacturers and wholesale 
distributors of pharmaceutical products in a state, including, in certain states, manufacturers and distributors who 
ship products into the state even if such manufacturers or distributors have no place of business within the state. 
Some states also impose requirements on manufacturers and distributors to establish the pedigree of product in the 
chain of distribution, including some states that require manufacturers and others to adopt new technology capable 
of tracking and tracing product as it moves through the distribution chain. Many of our current as well as possible 
future activities are potentially subject to federal and state consumer protection and unfair competition laws. We 
must also comply with laws that require clinical trial registration and reporting of clinical trial results on the publicly 
available clinical trial databank maintained by the National Institutes of Health at www.ClinicalTrials.gov. We are 
subject to various environmental, health and safety regulations, including those governing laboratory procedures and 
the handling, use, storage, treatment and disposal of hazardous substances. From time to time, and in the future, our 
operations may involve the use of hazardous materials.

To the extent that any of our products are sold in a foreign country, we may be subject to similar foreign laws 

and regulations, which may include, for instance, applicable post-marketing requirements, including safety 
surveillance, anti-fraud and abuse laws, and implementation of corporate compliance programs and reporting of 
payments or transfers of value to healthcare professionals.

26

U.S. Marketing Exclusivity

Hatch-Waxman Exclusivity. Market exclusivity provisions under the FDCA can delay the submission or 
approval of certain applications of other companies seeking to reference another company’s NDA. If the new drug is 
a new chemical entity subject to an NDA, the FDCA provides a five-year period of non-patent marketing exclusivity 
within the United States to the first applicant to obtain approval of an NDA for a new chemical entity. A drug is a 
new chemical entity if the FDA has not previously approved any other new drug containing the same active moiety, 
which is the molecule or ion responsible for the action of the drug substance. During the exclusivity period, the FDA 
may not accept for review an abbreviated new drug application, or ANDA, or a Section 505(b)(2) NDA submitted 
by another company for another version of such drug where the applicant does not own or have a legal right of 
reference to all the data required for approval. However, such an application may be submitted after four years if it 
contains a certification of patent invalidity or non-infringement to one of the patents listed with the FDA by the 
innovator NDA holder. The FDCA also provides three years of marketing exclusivity for an NDA, or supplement to 
an existing NDA if new clinical investigations, other than bioavailability studies, that were conducted or sponsored 
by the applicant are deemed by the FDA to be essential to the approval of the application, for example new 
indications, dosages or strengths of an existing drug. This three-year exclusivity covers only the conditions 
associated with the new clinical investigations and does not prohibit the FDA from approving ANDAs for drugs 
containing the original active agent. Five-year and three-year exclusivity will not delay the submission or approval 
of a full NDA. However, an applicant submitting a full NDA would be required to conduct or obtain a right of 
reference to all of the preclinical studies and adequate and well-controlled clinical trials necessary to demonstrate 
safety and effectiveness.

Rest of World Government Regulation

In addition to regulations in the United States, we will be subject to a variety of regulations in other 
jurisdictions governing, among other things, clinical trials and any commercial sales and distribution of our future 
products.

Whether or not we obtain FDA approval for a product, we must obtain the requisite approvals from regulatory 

authorities in foreign 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 similar process that requires the submission of a 
clinical trial application much like the IND prior to the commencement of human clinical trials. 

If we fail to comply with applicable foreign regulatory requirements, we may be subject to, among other 
things, fines, suspension or withdrawal of regulatory approvals, product recalls, seizure of products, operating 
restrictions and criminal prosecution.

Employees

As of December 31, 2019, we had 288 full-time employees. None of our employees is represented by labor 

unions or covered by collective bargaining agreements. We consider our relationship with our employees to be 
good.

Research and Development

We invested $69.6 million, $53.1 million, and $51.2 million in research and development in the years ended 

December 31, 2019, 2018 and 2017, respectively.

Corporate and Other Information

We were incorporated in Delaware in November 2007. Our principal executive offices are located at 10 Mall 

Road, Suite 301, Burlington, Massachusetts 01803, and our telephone number is (781) 305-7777. Our corporate 
website address is www.flexiontherapeutics.com. Information contained on or accessible through our website is not 
a part of this Annual Report, and the inclusion of our website address in this Annual Report is an inactive textual 
reference only. Our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, 
and amendments to reports filed pursuant to Sections 13(a) and 15(d) of the Exchange Act are available free of 

27

charge on our website as soon as reasonably practicable after we electronically file such material with, or furnish it 
to, the SEC. We also regularly post copies of our press releases as well as copies of presentations and other updates 
about our business on our website at www.flexiontherapeutics.com. Information contained in our website does not 
constitute a part of this Annual Report or our other filings with the SEC. The SEC maintains an internet site that 
contains our public filings with the SEC and other information regarding our company, at www.sec.gov. 

This Annual Report contains references to our trademarks and to trademarks belonging to other entities. 

Solely for convenience, trademarks and trade names referred to in this Form 10-K, including logos, artwork and 
other visual displays, may appear without the ® or TM symbols, but such references are not intended to indicate, in 
any way, that their respective owners will not assert, to the fullest extent under applicable law, their rights thereto. 
We do not intend our use or display of other companies’ trade names or trademarks to imply a relationship with, or 
endorsement or sponsorship of us by, any other companies.

ITEM 1A. RISK FACTORS

You should consider carefully the risks described below, together with the other information contained in this 
Annual Report on Form 10-K and other documents we file with the Securities and Exchange Commission.  The risks 
and uncertainties below are those identified by us as material, but there are also additional risks and uncertainties 
that we are unaware of that may become important factors that affect us.  If any of the following risks actually 
occurs, our business, financial condition, results of operations and future growth prospects would likely be 
materially and adversely affected, and the market price of our common stock would likely decline. 

Risks Related to Our Financial Condition and Need for Additional Capital 

We have incurred significant losses since our inception and anticipate that we will continue to incur 
significant losses over the next few years. 

We have a limited operating history. To date, we have focused primarily on developing our commercialized 
product, ZILRETTA. Any additional product candidates we develop will require substantial development time and 
resources before we would be able to apply for or receive regulatory approvals and begin generating revenue from 
product sales. We have incurred significant net losses in each year since our inception, including net losses of 
$149.8 million, $169.7 million, and $137.5 million for fiscal years 2019, 2018, and 2017, respectively. As of 
December 31, 2019, we had an accumulated deficit of $668.6 million. We expect to incur net losses over the next 
few years as we continue to invest in the commercialization of ZILRETTA and advance our development programs. 

We have devoted most of our financial resources to product development and commercialization. To date, we 

have financed our operations exclusively through the sale of equity securities and debt. The size of our future net 
losses will depend, in part, on the rate of future expenditures and our ability to generate revenue. The U.S. Food and 
Drug Administration, or FDA, granted marketing approval and we launched commercial sales of ZILRETTA in the 
fourth quarter of 2017. We have a limited history of commercializing ZILRETTA and cannot guarantee that our 
commercialization efforts will result in product revenues that meet our peak sales expectations or those of analysts 
and investors. 

28

We also expect to continue to incur substantial and increased expenses as we invest in the commercialization 
of ZILRETTA, scale up commercial manufacturing of ZILRETTA, conduct additional clinical trials for this product 
and continue our development activities with respect to our pipeline product candidates. As a result of the foregoing, 
we expect to continue to incur significant losses and negative cash flows over the next few years.  

Our revenues may not be sufficient to cover our future expenses and we may never be profitable.  

Our ability to generate significant revenue and achieve profitability depends primarily on our ability to 

successfully commercialize ZILRETTA, as well as our ability to obtain regulatory approval for and then 
successfully commercialize other product candidates. We may never succeed in these activities and may never 
generate revenues that are significant enough to achieve profitability. 

Because of the numerous risks and uncertainties associated with new pharmaceutical products and 

development efforts, we are unable to predict the timing or amount of increased expenses, when, or if, we will begin 
to generate revenue from product sales sufficient to cover our operating expenses or when, or if, we will be able to 
achieve or maintain profitability. In addition, our expenses could increase beyond expectations if we determine that 
additional sales and marketing personnel or other resources are necessary to successfully commercialize ZILRETTA 
or if we face any legal or regulatory action related to the commercialization of ZILRETTA.

If we are unable to generate sufficient revenues from product sales, particularly from sales of ZILRETTA, or 

to maintain an acceptable cost structure related to our operations, we may not become profitable and may need to 
obtain additional funding to continue operations. 

If we fail to obtain additional financing, we may be forced to delay, reduce or eliminate our product 
development programs and/or commercialization activities. 

Developing and commercializing pharmaceutical products, including conducting preclinical studies and 
clinical trials, and building and maintaining sales and marketing capabilities, is expensive. We expect our expenses 
to increase in connection with our ongoing activities, particularly as we expand our sales and marketing activities, 
continue to commercialize ZILRETTA and advance our clinical programs. 

As of December 31, 2019, we had cash, cash equivalents and marketable securities of approximately $136.7 
million and working capital of $159.5 million. Based upon our current operating plan, we believe that our existing 
cash, cash equivalents, and marketable securities will enable us to fund our operating expenses and capital 
requirements for at least the next 12 months from the issuance date of the financial statements included in this 
report. Regardless of our expectations as to how long our cash, cash equivalents, and marketable securities will fund 
our operations, changing circumstances may cause us to consume capital more rapidly than we currently anticipate. 

Attempting to secure additional financing may divert our management from our day-to-day activities, which 

may adversely affect our ability to develop and commercialize our product candidates. In addition, we cannot 
guarantee that future financing will be available in sufficient amounts or on terms acceptable to us, if at all.  If we 
are unable to raise additional capital when required or on acceptable terms, we may be required to: 

•

•

•

•

•

significantly scale back or discontinue commercialization of ZILRETTA or the further development of 
ZILRETTA or our product candidates; 

seek corporate partners for our product candidates at an earlier stage than otherwise would be desirable 
or on terms that are less favorable than might otherwise be available; 

seek corporate partners to assist in the commercialization of ZILRETTA on terms that are less favorable 
than might otherwise be available; 

relinquish or license on unfavorable terms, our rights to ZILRETTA or product candidates that we 
otherwise would seek to develop or commercialize ourselves; or 

significantly curtail, or cease, operations. 

29

We may sell additional equity or debt securities to fund our operations, which may result in dilution to our 
stockholders and impose restrictions on our business. 

In order to raise additional funds to support our operations, we may sell additional equity or debt securities, 

which could adversely impact our existing stockholders as well as our business. The sale of additional equity or 
convertible debt securities would result in the issuance of additional shares of our capital stock and dilution to all of 
our stockholders. The incurrence of indebtedness would result in increased fixed payment obligations and could also 
result in certain restrictive covenants, such as limitations on our ability to incur additional debt, limitations on our 
ability to acquire, sell or license intellectual property rights and other operating restrictions that could adversely 
impact our ability to conduct our business.

Our existing indebtedness contains restrictions that limit our flexibility in operating our business. In 
addition, we may be required to make a prepayment or repay our outstanding indebtedness earlier than we 
expect, which could have a materially adverse effect on our business, or may otherwise be unable to repay 
our indebtedness as it becomes due. 

On August 2, 2019, we entered into the Amended and Restated Credit and Security Agreement with Silicon 

Valley Bank, MidCap Financial Trust, and Flexpoint MCLS Holdings, LLC which provides for a term loan of $40.0 
million and a revolving credit facility up to $20.0 million. We concurrently drew down the $40.0 million term loan 
and used $7.7 million of the proceeds to repay the remaining amount owed on our prior credit facility. In February 
2020, we drew down $20.0 million from the revolving credit facility. The Amended and Restated Credit and 
Security Agreement contains various covenants that limit our ability to engage in specified types of transactions. 
These covenants limit our ability to, among other things: 

•

incur or assume certain debt; 

• merge or consolidate or acquire all or substantially all of the capital stock or property of another entity; 

•

•

•

•

•

•

enter into any transaction or series of related transactions that would be deemed to result in a change in 
control of us under the terms of the agreement; 

change the nature of our business; 

change our organizational structure or type; 

amend, modify or waive any of our organizational documents; 

license, transfer or dispose of certain assets; 

grant certain types of liens on our assets; 

• make certain investments; 

•

•

•

pay cash dividends; 

enter into material transactions with affiliates; and 

amend or waive provisions of material agreements in certain manners. 

The Amended and Restated Credit and Security Agreement also contains a minimum revenue covenant that 
only applies if our liquidity (defined as cash and cash equivalents held with Silicon Valley Bank) falls below $80.0 
million. If the revenue covenant becomes applicable to us and we fail to meet it, the commitments under the 
Amended and Restated Credit and Security Agreement could be terminated and any outstanding borrowings, 
together with accrued interest, under the Amended and Restated Credit and Security Agreement could be declared 
immediately due and payable. The restrictive covenants in the Amended and Restated Credit and Security 
Agreement could prevent us from pursuing business opportunities that we or our stockholders may consider 
beneficial.  The revenue covenant is set annually and is based on the greater of a conservative percentage of that 
year’s approved forecast and modest growth over the trailing twelve months of actual sales.

A breach of any of these covenants could result in an event of default under the Amended and Restated Credit 
and Security Agreement. An event of default will also occur if, among other things, a material adverse change in our 
business, operations or condition occurs, which could potentially include a material impairment of the prospect of 
our repayment of any portion of the amounts we owe under the Amended and Restated Credit and Security 
Agreement occurs. In the case of a continuing event of default under the Amended and Restated Credit and Security 

30

Agreement, the lenders could elect to declare all amounts outstanding to be immediately due and payable, proceed 
against the collateral in which we granted the lenders a security interest under the Amended and Restated Credit and 
Security Agreement, or otherwise exercise the rights of a secured creditor. Amounts outstanding under the Amended 
and Restated Credit and Security Agreement are secured by all of our existing and future assets, excluding 
intellectual property, which is subject to a negative pledge arrangement. 

In April 2017, we also issued $201.3 million principal amount of our 3.375% Convertible Senior Notes due 

2024, or the 2024 Convertible Notes. The 2024 Convertible Notes will mature on May 1, 2024, unless earlier 
redeemed, repurchased or converted in accordance with the terms of the indenture governing the notes. If specified 
bankruptcy, insolvency or reorganization-related events of default occur, or if certain other events of default occur 
and the trustee or certain holders of the 2024 Convertible Notes elect, the principal of, and accrued and unpaid 
interest on, all of the then-outstanding 2024 Convertible Notes will automatically become due and payable. In 
addition, if we undergo certain fundamental change transactions specified in the indenture governing the 2024 
Convertible Notes, the holders of the notes may require us to repurchase their notes at a price equal to 100% of the 
principal amount of the notes, plus any accrued and unpaid interest. 

We may not have enough available cash or be able to raise additional funds on satisfactory terms, if at all, 

through equity or debt financings to repay or refinance our indebtedness at the time any such repayment or 
repurchase is required. In such an event, we may be required to delay, limit, reduce or terminate our product 
development or commercialization efforts or grant to others rights to develop and market product candidates that we 
would otherwise prefer to develop and market ourselves. Our business, financial condition and results of operations 
could be materially adversely affected as a result. 

Risks Related to Commercialization Activities 

Our prospects are highly dependent on the successful commercialization of ZILRETTA. To the extent 
ZILRETTA is not commercially successful, our business, financial condition and results of operations may 
be materially adversely affected. 

ZILRETTA is our only drug that has been approved for sale and it has only been approved for the 

management of OA pain of the knee for patients in the United States. We are focusing a significant portion of our 
activities and resources on ZILRETTA, and we believe our prospects are highly dependent on, and a significant 
portion of the value of our company relates to, our ability to successfully commercialize ZILRETTA in the United 
States. 

Successful commercialization of ZILRETTA is subject to many risks. We have never, as an organization, 

commercialized a product prior to ZILRETTA, and there is no guarantee that we will be able to do so successfully 
with ZILRETTA for its approved indication. There are numerous examples of failures to meet expectations of 
market potential, including by pharmaceutical companies with more experience and resources than us. 

Market acceptance of ZILRETTA and any other product for which we receive approval, will depend on a 

number of factors, including: 

•

•

•

•

•

•

•

•

•

the efficacy and safety as demonstrated in clinical trials; 

the ability to demonstrate the impact of real world evidence; 

the timing and market introduction of competitive products; 

the clinical indications for which the product is approved; 

acceptance by physicians, the medical community and patients of the product as a safe and effective 
treatment; 

the ability to distinguish safety and efficacy from existing, less expensive generic alternative therapies; 

the convenience of prescribing, administrating and initiating patients on the product; 

the potential and perceived advantages and/or value of the product over alternative treatments;  

the cost of treatment in relation to alternative treatments, including any similar generic treatments; 

31

•

•

•

the availability of coverage and adequate reimbursement by third-party payers and government 
authorities to support ZILRETTA’s pricing; 

the prevalence and severity of adverse side effects; and 

the effectiveness of sales and marketing efforts. 

With respect to ZILRETTA, while we have established our commercial team and sales force, there are many 
factors that could cause the commercialization of ZILRETTA to be unsuccessful, including a number of factors that 
are outside our control. The commercial success of ZILRETTA depends on the extent to which patients and 
physicians accept and adopt ZILRETTA as a treatment for OA pain of the knee, and we do not know whether our or 
others’ revenue estimates in this regard will be accurate. For example, if the patient population suffering from OA 
pain of the knee is smaller than we estimate or if physicians are unwilling to prescribe or patients are unwilling to 
use ZILRETTA, the commercial potential of ZILRETTA will be limited. In addition, if ZILRETTA is not 
convenient for physicians to use, then it may not achieve widespread adoption, regardless of its efficacy and safety. 
For example, ZILRETTA is a buy-and-bill product and must be administered only by a health care professional in 
an office, clinic or hospital setting. In addition, ZILRETTA requires a multi-step preparation process, which may 
discourage some physicians from using ZILRETTA. Moreover, ZILRETTA’s product label indicates that the 
efficacy and safety of repeat administration have not been demonstrated, and we believe this may impact our 
commercialization efforts. While we successfully completed a Phase 3b repeat dose study of ZILRETTA and our 
sNDA was approved and the product label was modified the FDA did not agree to remove the limitation of use with 
respect to repeat administration. We also do not know how physicians, patients and payers will respond to the 
pricing of ZILRETTA in the long-term. In the second half of 2019, we introduced a volume-based rebate program to 
eligible purchasers and healthcare providers of ZILRETTA that positively impacted sales and we intend to continue 
to use rebate and discount programs in the future. We are unable to predict how these rebate programs could 
potentially affect buying patterns and net sales in future quarters. 

If we experience any disruption in the commercial supply of ZILRETTA due to manufacturing or distribution 

issues, the disruption would impact ZILRETTA sales and may adversely affect physicians’, patients’ and payers’ 
assessment of ZILRETTA, negatively impacting uptake and long-term commercialization efforts.  

Physicians may not prescribe ZILRETTA and patients may be unwilling to use ZILRETTA if coverage is not 

provided or reimbursement is inadequate to cover a significant portion of the cost. Additionally, any negative 
development for ZILRETTA in terms of label updates or clinical development in additional indications, may 
adversely impact the commercial results and potential of ZILRETTA. Thus, significant uncertainty remains 
regarding the commercial potential of ZILRETTA. 

If the commercialization of ZILRETTA is unsuccessful or perceived as disappointing, our stock price could 

decline significantly, and the long-term success of the product and our company could be harmed. 

If we are unable to differentiate ZILRETTA from existing generic therapies for the treatment of OA, or if 
the FDA or other applicable regulatory authorities approve generic products that compete with ZILRETTA, 
our ability to successfully commercialize ZILRETTA would be adversely affected. 

Immediate-release TA and other injectable immediate-release steroids, which are the current intra-articular, or 
IA, standard of care for OA pain, are available in generic form and are therefore relatively inexpensive compared to 
the pricing for ZILRETTA. These generic steroids also have well-established market positions and familiarity with 
physicians, healthcare payers and patients. Although we believe the proven and extended pain relief evidenced in 
our clinical trials demonstrate that ZILRETTA represents a clinically meaningful and highly efficacious option for 
patients and physicians, it is possible that we will receive data from additional clinical trials or in a post-marketing 
setting from physician and patient experiences with the commercial product that does not continue to support such 
interpretations. It is also possible that the FDA, physicians and healthcare payers will not agree with our 
interpretation of our existing and future clinical trial data. If we are unable to demonstrate the value of ZILRETTA 
based on our clinical data, patient experience, as well as real world evidence, our opportunity for ZILRETTA to 
maintain premium pricing and be commercialized successfully would be adversely affected. For example, although 
ZILRETTA showed numeric improvements through week 12 in validated, OA specific pain, stiffness, function and 
quality of life exploratory measures and showed numeric improvements in average daily pain, it did not achieve 

32

statistical significance at the week 12 ADP timepoint compared to immediate-release TA. As a result, it is possible 
that healthcare payers will not agree with our assessment that ZILRETTA’s proven pain relief supports premium 
pricing. 

In addition to existing generic steroids, such as immediate-release TA, the FDA or other applicable regulatory 

authorities may approve other generic products that could compete with ZILRETTA, if we cannot adequately 
protect it with our patent portfolio. Once an NDA, including a Section 505(b)(2) application, is approved, the 
product covered thereby becomes a “listed drug” which can, in turn, be cited by potential competitors in support of 
approval of an abbreviated new drug application, or ANDA. The FDCA, FDA regulations and other applicable 
regulations and policies provide incentives to manufacturers to create modified, non-infringing versions of a drug to 
facilitate the approval of an ANDA or other application for generic substitutes. These manufacturers might only be 
required to conduct a relatively inexpensive study to show that their product has the same active ingredient(s), 
dosage form, strength, route of administration, conditions of use, or labeling as our product candidate and that the 
generic product is bioequivalent to ours, meaning it is absorbed in the body at the same rate and to the same extent 
as ZILRETTA. These generic equivalents, which must meet the same quality standards as branded pharmaceuticals, 
would be significantly less costly than ours to bring to market and companies that produce generic equivalents are 
generally able to offer their products at lower prices. Thus, after the introduction of a generic competitor, a 
significant percentage of the sales of any branded product is typically lost to the generic product. Accordingly, 
competition from generic equivalents to our products would materially adversely impact our ability to successfully 
commercialize ZILRETTA. 

We face significant competition from other biopharmaceutical companies, and our operating results will 
suffer if we fail to compete effectively. 

The biopharmaceutical industries are intensely competitive and subject to rapid and significant technological 
change. In addition, the competition in the pain and OA market is intense. We have competitors both in the United 
States and internationally, including major multinational pharmaceutical and biotechnology companies. For 
example, the injectable OA treatment market today includes many injectable immediate-release steroids, including 
TA, the active ingredient in ZILRETTA, as well as hyaluronic acid, or HA, injections. In addition, we expect that 
injectable therapies, such as ZILRETTA, will continue to be used primarily after oral medications no longer provide 
adequate pain relief. To the extent that new or improved oral or other systemically administered pain medications 
are introduced that demonstrate better long-term efficacy and safety, patients and physicians may further delay the 
introduction of injectable therapies, such as ZILRETTA in the OA treatment continuum. ZILRETTA could also face 
competition from other formulations or devices that deliver pain medication on an extended basis, such as 
transdermal delivery systems or implantable devices. 

Many of our competitors have substantially greater financial, technical and other resources, such as larger 

research and development staffs and experienced commercial and manufacturing organizations. Mergers and 
acquisitions in the biotechnology and pharmaceutical industries may result in even more resources being 
concentrated in our competitors. As a result, these companies may obtain regulatory approval more rapidly than we 
are able and may be more effective in selling and marketing their products as well. Smaller or early-stage companies 
may also prove to be significant competitors, particularly through collaborative arrangements with large, established 
companies. Competition may increase further as a result of advances in the commercial applicability of technologies 
and greater availability of capital for investment in these industries. Our competitors may succeed in developing, 
acquiring or licensing on an exclusive basis drug products or drug delivery technologies that are more effective or 
less costly than ZILRETTA or any other product candidate that we are currently developing or that we may develop. 

We believe that our ability to successfully compete will depend on, among other things: 

•

•

•

•

the efficacy and safety of ZILRETTA and our other product candidates, including relative to marketed 
products and product candidates in development by third parties; 

the ability to distinguish safety and efficacy from existing, less expensive generic alternative therapies; 

the time it takes for our product candidates to complete clinical development and receive marketing 
approval; 

the ability to maintain a good relationship with regulatory authorities; 

33

•

•

•

•

•

•

the ability to commercialize and market ZILRETTA and any of our other product candidates that 
receive regulatory approval; 

the price of ZILRETTA and any of our future products, including in comparison to branded or generic 
competitors; 

whether coverage and adequate levels of reimbursement are available under private and governmental 
health insurance plans, including Medicare; 

the ability to protect our intellectual property rights; 

the ability to manufacture on a cost-effective basis and sell commercial quantities of ZILRETTA and 
any of our other product candidates that receive regulatory approval; and 

acceptance of ZILRETTA and any of our other product candidates that receive regulatory approval by 
patients, physicians and other healthcare providers. 

If our competitors market products that are more effective, safer, less expensive or offer discounts that allow 

physicians to receive more net reimbursement than ZILRETTA, we may not achieve commercial success. In 
addition, the biopharmaceutical industry is characterized by rapid technological change. Because we have limited 
research and development capabilities, it may be difficult for us to stay abreast of the rapid changes in each 
technology. If we fail to stay at the forefront of technological change, we may be unable to compete effectively. 
Technological advances or products developed by our competitors may render our products or product candidates 
obsolete, less competitive or not economical. 

If we are unable to maintain sales and marketing capabilities or enter into agreements with third parties to 
market, distribute and sell our product candidates, we may be unable to generate adequate revenue. 

Our strategy is to commercialize ZILRETTA in the United States with a targeted sales and marketing 
organization. While we have established our commercial team and our sales force, we do not have prior experience 
commercializing pharmaceutical products as an organization. In order to successfully market ZILRETTA, we must 
continue to build and maintain our sales, marketing, managerial, compliance and related capabilities or make 
arrangements with third parties to perform these services. These efforts will continue to be expensive and time-
consuming, and we will be competing with other pharmaceutical and biotechnology companies to recruit, hire, train 
and retain marketing and sales personnel. If we are unable to maintain adequate sales, marketing and distribution 
capabilities, whether independently or with third parties, we may not generate significant revenue from ZILRETTA. 

Additionally, our strategy in the United States includes distributing ZILRETTA through a limited network of 

third-party specialty distributors, a specialty pharmacy, group purchasing organizations and other third parties. 
While we have entered into these agreements to purchase and/or distribute ZILRETTA in the United States, the 
counterparties may not perform as agreed or they may terminate their agreements with us. For example, ZILRETTA 
sales are concentrated with two specialty distributors, which together represented approximately 68% and 81% of 
our sales for the years ended December 31, 2019 and 2018, respectively. Loss of either specialty distributor through 
contract termination or its failure to distribute effectively would adversely affect ZILRETTA’s distribution. While 
we have entered into these agreements on commercially reasonable terms, there is no guarantee that we will be able 
to continue to do so, if at all. 

To date, we have not entered into any strategic collaborations for ZILRETTA or any of our other product 

candidates. We face significant competition in seeking appropriate strategic partners, and these strategic 
collaborations can be intricate and time consuming to negotiate and finalize. We may not be able to negotiate 
strategic collaborations for territories outside of the United States on acceptable terms, or at all. We are unable to 
predict when, if ever, we will enter into any strategic collaboration outside of the United States because of the 
numerous risks and uncertainties associated with establishing strategic collaborations. To the extent that we enter 
into strategic collaborations, our future collaborators may not dedicate sufficient resources to the commercialization 
of our product candidates or may otherwise fail in their commercialization due to factors beyond our control. If we 
are unable to establish effective collaborations to enable the sale of ZILRETTA or our other product candidates in 
territories outside of the United States, or if our potential future collaborators do not successfully commercialize our 
product candidates in these territories, our ability to generate revenue from product sales will be adversely affected. 

34

We and any future collaborators that we may engage will be competing with many companies that currently 

have extensive and well-funded marketing and sales operations. If we, alone or with commercialization partners, are 
unable to compete successfully against these established companies, the commercial success of ZILRETTA or any 
other approved products will be limited. In addition, if we are unable to effectively develop and maintain our 
commercial team, including our U.S. sales force, or maintain and, if needed, expand, our customer base, including 
specialty distributors, specialty pharmacies, group purchasing organizations and other direct customers, our ability 
to effectively commercialize ZILRETTA and generate product revenues would be limited. 

Customer buying patterns and other factors may cause our quarterly results to fluctuate, and these 
fluctuations may adversely affect our short-term results.

Our results of operations, including, in particular, product revenues, may vary from period to period due to a 
variety of factors, including the buying patterns of our specialty distributors, specialty pharmacy, group purchasing 
organizations, and other direct purchasers, which vary from quarter to quarter, and may be impacted by seasonality 
(such as in the first quarter of the year when patient deductibles tend to be reset). In the event these customers with 
whom we do business limit their purchases of ZILRETTA, sales of ZILRETTA could be adversely affected. For 
example, in advance of an anticipated price increase or a reduction in expected rebates or discounts, customers may 
order ZILRETTA in larger than normal quantities which could cause sales of ZILRETTA to be lower in subsequent 
quarters than they would have been otherwise. Further, any changes in purchasing patterns, inventory levels, 
increases in returns of ZILRETTA, delays in purchasing products or delays in payment for products by our 
customers could also have a negative impact on our revenue and results of operations.

If we are unable to effectively train and equip our sales force, our ability to successfully commercialize 
ZILRETTA will be harmed. 

We are required to expend significant time and resources to train our sales force to be credible, persuasive and 

compliant with applicable laws in marketing ZILRETTA for the treatment of patients with OA of the knee. In 
addition, we must train our sales force to ensure that an appropriate and compliant message about ZILRETTA is 
being delivered. If we are unable to maintain an effectively trained sales force and equip them with compliant and 
effective materials, including medical and sales literature to help them appropriately inform and educate customers 
regarding the potential benefits and safety of ZILRETTA and its proper administration, our efforts to successfully 
commercialize ZILRETTA could be put in jeopardy, which would negatively impact our ability to generate product 
revenues. 

If we are unable to achieve and maintain adequate levels of third-party payer coverage and reimbursement 
for ZILRETTA, or, if approved, any other product candidates, on reasonable pricing terms, their 
commercial success may be severely hindered. 

Successful sales of ZILRETTA and any other approved product candidates depend on the availability of 
coverage and adequate reimbursement from third-party payers, including governmental healthcare programs, such as 
Medicare and Medicaid, managed care organizations and commercial payers, among others. Patients who are 
prescribed medicine for the treatment of their conditions generally rely on third-party payers to reimburse all or part 
of the costs associated with their prescription drugs. Coverage and adequate reimbursement from third-party payers 
are critical to new product acceptance. Coverage decisions may depend upon clinical and economic standards that 
disfavor new drug products when more established or lower cost therapeutic alternatives are already available or 
subsequently become available. The resulting reimbursement payment rates for ZILRETTA and, if approved, our 
other product candidates, might not be adequate or may require co-payments that patients find unacceptably high. 

As of January 1, 2019, we received a product-specific J-Code for ZILRETTA (J-3304), which helped reduce 

reluctance by physicians to prescribe ZILRETTA based on reimbursement concerns. However, some third-party 
payers nevertheless may still require documented proof that patients meet certain eligibility criteria in order to be 
reimbursed for ZILRETTA, for example requiring that a patient first try and fail treatment with an injection of 
generic corticosteroid. Also, third-party payers may require that pre-approval, or prior-authorization, be obtained 
from the payer for reimbursement of ZILRETTA, or limit coverage to one injection or a limited number of 
injections over a set time period. Patients are unlikely to use ZILRETTA and, if approved, any other products, 

35

unless coverage is provided, and reimbursement is adequate to cover a significant portion of the cost of our 
products. For example, ZILRETTA is sold to physicians on a “buy and bill” basis. Buy and bill products must be 
purchased by healthcare providers before they can be administered to patients. Healthcare providers subsequently 
must seek reimbursement for the product from the applicable third-party payer, such as Medicare or a health 
insurance company. Healthcare providers may be reluctant to administer ZILRETTA because they would have to 
fund the purchase of the product and then seek reimbursement, because they may consider ZILRETTA 
reimbursement rates to be lower as compared with other treatments, or because they do not want the additional 
administrative burden required to obtain reimbursement for the product.

In addition, the market for ZILRETTA and any of our other product candidates may depend significantly on 
access to third-party payers’ medical policies, drug formularies, or lists of medications for which third-party payers 
provide coverage and reimbursement, as well as inclusion of ZILRETTA on the reimbursement policies and 
formularies used by large physician practices and hospitals. The industry competition to be included in such policies 
or formularies often leads to downward pricing pressures on pharmaceutical companies, and we may be required to 
offer discounted rates to certain government and other payers to ensure coverage of our drugs. Also, third-party 
payers, physician practices and hospitals may refuse to include a particular branded drug in their policies or 
formularies or otherwise restrict patient access to a branded drug when a less costly generic equivalent or other 
alternative is available, or when the reimbursement landscape is unclear. 

Third-party payers, whether governmental or commercial, are developing increasingly sophisticated methods 

of controlling healthcare costs. The U.S. government, state legislatures and foreign governments have shown 
significant interest in implementing cost-containment programs, including price controls, restrictions on 
reimbursement and requirements for substitution of generic products. In addition, in the United States, no uniform 
policy of coverage and reimbursement for drug products exists among third-party payers. Therefore, coverage and 
reimbursement for drug products can differ significantly from payer to payer and one payer’s determination to 
provide coverage for ZILRETTA does not ensure that other payers also will provide coverage. As a result, the 
coverage determination process is often a time-consuming and costly process that will require us to provide 
scientific and clinical support for the use of our products to each payer separately, with no assurance that coverage 
and adequate reimbursement will be obtained. 

Further, we believe that future coverage and reimbursement will likely be subject to increased restrictions both 

in the United States and in international markets. Third-party coverage and reimbursement for ZILRETTA or, if 
approved, any of our other product candidates, may not be available or adequate in either the United States or 
international markets, or may be more limited than the indications for which the drug is approved by the FDA or 
comparable foreign regulatory authorities. Moreover, eligibility for coverage and reimbursement does not imply that 
a drug will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, 
sales and distribution costs. If coverage and reimbursement are not available or only available at limited levels, we 
may not be able to successfully commercialize any product candidate for which we obtain marketing approval, 
including ZILRETTA, which could have a material adverse effect on our business, results of operations, financial 
condition and prospects. 

Guidelines and recommendations published by various organizations can reduce the use of ZILRETTA 
and any other products we may commercialize. 

Government agencies promulgate regulations and guidelines directly applicable to us and to our products and 

product candidates. In addition, professional societies, such as the American Academy of Orthopedic Surgeons, 
practice management groups, private health and science foundations and organizations involved in various diseases 
from time to time may also publish guidelines or recommendations to the healthcare and patient communities with 
respect to specific products. Recommendations of government agencies or these other groups or organizations may 
relate to such matters as usage, dosage, route of administration and use of concomitant therapies. Recommendations 
or guidelines that do not recognize ZILRETTA or our other product candidates, suggest limitations or inadequacies 
of ZILRETTA or our other product candidates, or suggest the use of competitive or alternative products as the 
standard of care to be followed by patients and healthcare providers, could result in decreased use or adoption of 
ZILRETTA or any future products. 

36

ZILRETTA is available to a much larger number of patients and in broader populations through our 
commercialization efforts as compared to the patients in the clinical studies.  We do not know whether the 
results of ZILRETTA’s use in such larger number of patients and broader populations will be consistent 
with the results from our clinical studies. 

While the FDA granted approval of ZILRETTA based on the data included in the NDA, including data from 

our completed pivotal Phase 3 clinical trial, we do not know whether the results that served as the basis for the 
FDA’s approval of ZILRETTA will be consistent with commercial results as a large number of patients and broader 
populations are exposed to ZILRETTA and are exposed over longer periods of time, including results related to 
safety and efficacy.  New data relating to ZILRETTA, including from adverse event reports or our ongoing studies 
of ZILRETTA in other indications, may result in additional changes to the product label and may adversely affect 
sales, or result in withdrawal of ZILRETTA from the market. The FDA and regulatory authorities in other 
jurisdictions may also consider any new data in connection with further marketing approval applications. If 
ZILRETTA or any additional approved products cause serious or unexpected side effects after receiving market 
approval, a number of potentially significant negative consequences could result, including: 

•

•

•

•

•

regulatory authorities may withdraw their approval of the product or impose restrictions on its 
distribution in the form of a Risk Evaluation and Mitigation Strategy; 

regulatory authorities may require the addition of labeling statements, such as warnings or 
contraindications; 

we may be required to change the way the product is promoted or administered or conduct additional 
clinical studies; 

we could be sued and held liable for harm caused to patients; or 

our reputation may suffer. 

Any of these events could prevent us from maintaining market acceptance of the affected product and could 

substantially increase the costs of commercializing ZILRETTA or any additional products. 

Recently enacted and future legislation, including health care reform measures, may increase the difficulty 
and cost for us to commercialize ZILRETTA and any future products and may affect the prices we may 
obtain. 

The United States and some foreign jurisdictions are considering, or have enacted, a number of legislative and 
regulatory proposals to change the healthcare system in ways that could affect our ability to sell ZILRETTA, and if 
approved for sale, our other potential products, profitably. Among policy makers and third-party payers in the 
United States and elsewhere, there is significant interest in promoting changes in healthcare systems with the stated 
goals of containing healthcare costs, improving quality and/or expanding access. In the United States, the 
pharmaceutical industry has been a particular focus of these efforts and has been, and may continue to be, 
significantly affected by major legislative, congressional and enforcement initiatives. Moreover, in some foreign 
jurisdictions, pricing of prescription pharmaceuticals is already subject to government control. 

In March 2010, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education 

Reconciliation Act, or PPACA, was enacted, which was intended to, among other items, broaden access to health 
insurance, reduce or constrain the growth of healthcare spending, enhance remedies against fraud and abuse, add 
transparency requirements for the healthcare and health insurance industries, impose taxes and fees on the health 
industry and impose additional health policy reforms. Among the PPACA provisions of importance to the 
pharmaceutical industry are the following: 

•

•

an annual, non-deductible fee on any entity that manufactures or imports certain branded prescription 
drugs and biologic agents, apportioned among these entities according to their market share in certain 
government healthcare programs; 

an increase in the rebates a manufacturer must pay under the Medicaid Drug Rebate Program to 23.1% 
and 13% of the average manufacturer price for branded and generic drugs, respectively; 

37

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•

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•

a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program 
are calculated for drugs that are inhaled, infused, instilled, implanted or injected; 

a new Medicare Part D coverage gap discount program, in which manufacturers must now agree to offer 
70% point-of-sale discounts to negotiated prices of applicable brand drugs to eligible beneficiaries 
during their coverage gap period, as a condition for the manufacturer’s outpatient drugs to be covered 
under Medicare Part D; 

extension of manufacturers’ Medicaid rebate liability to covered drugs dispensed to individuals who are 
enrolled in Medicaid managed care organizations; 

expansion of eligibility criteria for Medicaid programs by, among other things, allowing states to offer 
Medicaid coverage to additional individuals and by adding new mandatory eligibility categories for 
certain individuals with income at or below 133% of the Federal Poverty Level, thereby potentially 
increasing manufacturers’ Medicaid rebate liability; 

expansion of the entities eligible for discounts under the Public Health Service pharmaceutical pricing 
program; 

new requirements under the federal Open Payments program, created under Section 6002 of PPACA, 
and its implementing regulations that require manufacturers of drugs, devices, biologics and medical 
supplies for which payment is available under Medicare, Medicaid or the Children’s Health Insurance 
Program (with certain exceptions) to report annually to the Centers for Medicare & Medicaid Services, 
or CMS, information related to “payments or other transfers of value” made or distributed to physicians, 
as defined by such law, and teaching hospitals, and that applicable manufacturers and applicable group 
purchasing organizations report annually to CMS ownership and investment interests held by physicians 
and their immediate family members; 

a requirement to annually report drug samples that manufacturers and distributors provide to physicians; 

expansion of healthcare fraud and abuse laws, including the federal False Claims Act and the federal 
Anti-Kickback Statute, new government investigative powers, and enhanced penalties for non-
compliance; 

an FDA-approval framework for follow-on biologic products; 

a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct 
comparative clinical effectiveness research, along with funding for such research; and 

establishment of a Center for Medicare & Medicaid Innovation at CMS to test innovative payment and 
service delivery models to lower Medicare and Medicaid spending, potentially including prescription 
drug spending. 

There remain legal and political challenges to certain aspects of PPACA.  Since January 2017, President 

Trump has signed two Executive Orders and other directives designed to delay, circumvent, or loosen certain 
requirements mandated by PPACA.  Concurrently, Congress has considered legislation that would repeal or repeal 
and replace all or part of PPACA. While Congress has not passed comprehensive repeal legislation, several bills 
affecting the implementation of certain taxes under PPACA have been signed into law. The Tax Cuts and Jobs Act 
of 2017, or the Tax Act, signed into law on December 22, 2017, includes a provision repealing, effective January 1, 
2019, the tax-based shared responsibility payment imposed by PPACA on certain individuals that fail to maintain 
qualifying health coverage for all of part of a year commonly referred to as the “individual mandate.”  In addition, 
the 2020 federal spending package permanently eliminated, effective January 1, 2020, the PPACA-mandated 
“Cadillac” tax on high-cost employer-sponsored health coverage and medical device tax and, effective January 1, 
2021, also eliminates the health insurer tax. The Bipartisan Budget Act of 2018, among other things, amended 
PPACA, effective January 1, 2019, to close the coverage gap in most Medicare drug plans, commonly referred to as 
the “donut hole.”  In December 2018, CMS published a new final rule permitting further collections and payments 
to and from certain PPACA qualified health plans and health insurance issuers under PPACA risk adjustment 
program in response to the outcome of federal district court litigation regarding the method CMS uses to determine 
this risk adjustment.  On December 14, 2018, a Texas U.S. District Court Judge ruled that PPACA is 
unconstitutional in its entirety because the “individual mandate” was repealed by Congress as part of the Tax Act. 
Additionally, on December 18, 2019, the U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling 

38

that the individual mandate was unconstitutional and remanded the case back to the District Court to determine 
whether the remaining provisions of the PPACA are invalid as well.   It is unclear how this decision, future 
decisions, subsequent appeals, and other efforts to repeal and replace PPACA will impact PPACA and our business. 

In addition, since the PPACA was enacted, other legislative changes have been proposed and adopted that 
may impact the extent to which we are able to successfully commercialize any of our product candidates that receive 
regulatory approval. For example, in August 2011, then-President Obama signed into law the Budget Control Act of 
2011, which, among other things, created the Joint Select Committee on Deficit Reduction to recommend to 
Congress proposals in spending reductions. The Joint Select Committee on Deficit Reduction did not achieve a 
targeted deficit reduction, which triggered the legislation’s automatic reduction to several government programs. 
This includes aggregate reductions to Medicare payments to providers of, on average, two percent per fiscal year 
through 2029 unless Congress takes additional action. The American Taxpayer Relief Act of 2012, among other 
things, further reduced Medicare payments to several providers, including hospitals and cancer treatment centers, 
and increased the statute of limitations period for the government to recover overpayments to providers from three to 
five years.

There has been increasing legislative and enforcement interest in the United States with respect to specialty 

drug pricing practices, including at the federal level several recent U.S. Congressional inquiries and legislation 
designed to, among other things, increase drug pricing transparency, reduce the cost of drugs under Medicare, 
review relationships between pricing and manufacturer patient assistance programs, and reform government 
program drug reimbursement methodologies. Any reduction in reimbursement from Medicare, Medicaid or other 
government-funded programs may result in a similar reduction in payments from private payers. The Trump 
administration’s budget proposal for fiscal year 2020 contains further drug price control measures that could be 
enacted during the 2020 budget process or in other future legislation, including, for example, measures to permit 
Medicare Part D plans to negotiate the price of certain drugs under Medicare Part B, to allow some states to 
negotiate drug prices under Medicaid, and to eliminate cost sharing for generic drugs for low-income patients. 
Further, the Trump administration released a “Blueprint,” or plan, to lower drug prices and reduce out of pocket 
costs of drugs that contains additional proposals to increase drug manufacturer competition, increase the negotiating 
power of certain federal healthcare programs, incentivize manufacturers to lower the list price of their products, and 
reduce the out of pocket costs of drug products paid by consumers. The Department of Health and Human Services, 
or HHS, has solicited feedback on some of these measures and implemented others under its existing authority. For 
example, in May 2019, CMS issued a final rule to allow Medicare Advantage plans the option to use step therapy 
for Part B drugs beginning January 1, 2020. This final rule codified CMS’s policy change that was effective January 
1, 2019 Although a number of these and other measures may require additional authorization to become effective, 
Congress and the Trump administration have each indicated that it will continue to seek new legislative and/or 
administrative measures to control drug costs. At the state level, legislatures have increasingly passed legislation and 
implemented regulations designed to control pharmaceutical and biological product pricing, including price or 
patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure 
and transparency measures, and, in some cases, to encourage importation from other countries and bulk purchasing. 
The implementation of cost containment measures or other healthcare reforms may prevent us from being able to 
generate revenue, attain profitability or commercialize ZILRETTA and any future products for which we receive 
regulatory approval.

We expect that PPACA, as well as other healthcare reform measures that may be adopted in the future, may 
result in more rigorous coverage criteria and lower reimbursement, as well as additional downward pressure on the 
price that we receive for any approved product, including ZILRETTA. 

Risks Related to Product Development and Regulatory Compliance 

We may never obtain regulatory approval of ZILRETTA for repeat administration or additional 
indications, approval of our other product candidates in the United States, or we may never obtain approval 
for or commercialize ZILRETTA or our other product candidates outside of the United States, which would 
limit our ability to realize their full market potential. 

While ZILRETTA has been approved for the management of OA pain of the knee, the approved product label 

originally contained a limitation of use, or LOU, stating that ZILRETTA is not intended for repeat administration. 

39

On December 26, 2019, the FDA approved our supplemental new drug application, or sNDA, to revise the product 
label for ZILRETTA. The sNDA was based on data from an open-label Phase 3b clinical trial, which indicated that 
repeat administration of ZILRETTA for treatment of OA knee pain was safe and well tolerated with no deleterious 
impact on cartilage or joint structure observed through X-ray analysis. While the LOU was updated from stating 
ZILRETTA was not intended for repeat administration to stating that the efficacy and safety of repeat administration 
of ZILRETTA have not been demonstrated, we were not successful in our efforts to remove the LOU entirely. The 
FDA did not find the data submitted in the sNDA sufficient to approve a removal of the LOU.  If we are unable to 
remove the LOU or expand the label for ZILRETTA, our ability to fully market ZILRETTA may be limited.

While ZILRETTA has been approved by the FDA for the treatment of patients with OA of the knee in the 
United States, it has not been approved in any other jurisdiction for this indication or for any other indication. In 
order to market ZILRETTA for other indications or in other jurisdictions, or in order to market any of our other 
product candidates, we must obtain regulatory approval for each indication and in each applicable jurisdiction, and 
we may never be able to get such approval for ZILRETTA or our other product candidates. In particular our pipeline 
product candidates, FX201 and FX301, are at early stages of development and if we cannot complete development 
of these product candidates and obtain regulatory approvals to market them, we may never recover our investment.

Clinical trials conducted in one country may not be accepted by regulatory authorities in other countries, and 

regulatory approval in one country does not mean that regulatory approval will be obtained in any other country. 
Approval processes vary among countries and can involve additional product testing and validation and additional 
administrative review periods. Seeking foreign regulatory approval could result in difficulties and costs for us and 
require additional non-clinical studies or clinical trials, which could be costly and time consuming. Regulatory 
requirements can vary widely from country to country and could delay or prevent the introduction of our potential 
future products in those countries. Other than ZILRETTA in the United States, we do not have any products 
approved for sale in any jurisdiction, and we do not have experience in obtaining regulatory approval in 
international markets. If we do not receive marketing approval for ZILRETTA for any other indication or from 
any regulatory agency other than the FDA, we will never be able to commercialize ZILRETTA for any other 
indication in the United States or for any indication in any other jurisdiction. If we fail to comply with regulatory 
requirements in international markets or to obtain and maintain required approvals for our other product candidates, 
or if regulatory approval in international markets is delayed, our potential market will be reduced and our ability to 
realize the full market potential of ZILRETTA or our other product candidates will be harmed. Even if we do 
receive additional regulatory approvals, we may not be successful in commercializing those opportunities. 

Clinical development is a lengthy and expensive process with an uncertain outcome, and results of earlier 
studies and trials may not be predictive of future trial results. Clinical failure can occur at any stage of 
clinical development. 

Clinical testing is expensive and can take many years to complete, and its outcome is inherently uncertain. 
Failure can occur at any time during the clinical trial process. The results of preclinical studies and early clinical 
trials of our product candidates may not be predictive of the results of subsequent clinical trials. In particular, the 
results generated in our completed ZILRETTA pivotal Phase 3 clinical trial do not ensure that any ongoing or future 
ZILRETTA clinical trial, including our ongoing clinical trials of ZILRETTA in other indications, will be successful 
or consistent with the results generated in the Phase 3 trial. 

Product candidates may fail to show the desired safety and efficacy traits despite having progressed through 

preclinical studies and initial clinical trials. For example, while FX201 has demonstrated successful results in 
numerous animal models, it has not been tested in humans yet and we cannot predict if it will behave similarly in 
our planned first-in human trials as it has in the animal studies. In addition to the safety and efficacy trials of any 
product candidate, clinical trial failures may result from a multitude of factors including flaws in trial design, dose 
selection, placebo effect and patient enrollment criteria. A number of companies in the biopharmaceutical industry 
have suffered significant setbacks in advanced clinical trials due to lack of efficacy or adverse safety profiles, 
notwithstanding promising results in earlier trials. In addition, data obtained from trials and studies are susceptible to 
varying interpretations, and regulators may not interpret our data as favorably as we do, which may delay, limit or 
prevent regulatory approval. In any event, our future clinical trials may not be successful. 

40

If ZILRETTA or any other product candidate is found to be unsafe or lack efficacy or feasibility in particular 
indications, we will not be able to obtain regulatory approval for the indication and our business could be materially 
harmed. 

Delays in clinical trials are common and have many causes, and any delay could result in increased costs to 
us and jeopardize or delay our ability to obtain regulatory approval for our product candidates. 

We may experience delays in clinical trials of our products and product candidates. Our clinical trials may not 
begin on time, have an effective design, enroll a sufficient number of patients, or be completed on schedule, if at all. 
Our clinical trials can be delayed for a variety of reasons, including: 

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•

inability to raise funding necessary to initiate or continue a trial; 

delays in obtaining regulatory approval to commence a trial; 

delays in reaching agreement with the FDA on final trial design; 

imposition of a clinical hold for safety reasons or following an inspection of our clinical trial operations 
or trial sites by the FDA or other regulatory authorities; 

delays in reaching agreement on acceptable terms with prospective contract research organizations, or 
CROs, and clinical trial sites; 

delays in obtaining required institutional review board approval at each site; 

delays in recruiting suitable patients to participate in a trial; 

delays in having patients complete participation in a trial or return for post-treatment follow-up; 

clinical sites dropping out of a trial to the detriment of enrollment; 

time required to add new clinical sites; or 

delays by our contract manufacturers to produce and deliver sufficient supply of clinical trial materials. 

If initiation or completion of our clinical trials are delayed for any of the above reasons or other reasons, our 

development costs may increase, our approval process could be delayed and our ability to commercialize our 
product candidates could be materially harmed, which could have a material adverse effect on our business. 

The regulatory approval process of the FDA is lengthy, time consuming and inherently unpredictable, and 
if we are ultimately unable to obtain regulatory approval for our product candidates or for ZILRETTA in 
additional indications, our business will be harmed. 

The time required to obtain approval by the FDA and comparable foreign authorities is unpredictable but 
typically takes many years following the commencement of clinical trials and depends upon numerous factors, 
including the substantial discretion of the regulatory authorities. In addition, approval policies, regulations, or the 
type and amount of clinical data necessary to gain approval may change during the course of a product candidate’s 
clinical development and may vary among jurisdictions. Although we received regulatory approval of ZILRETTA 
for the treatment of OA knee pain, it is possible that none of our other product candidates will ever obtain regulatory 
approval or that we will not be able to obtain regulatory approval for ZILRETTA in additional indications. 

Our product candidates could fail to receive regulatory approval for many reasons, including the following: 

•

•

•

•

the FDA or comparable foreign regulatory authorities may disagree with the design, scope or 
implementation of our clinical trials; 

we may be unable to demonstrate to the satisfaction of the FDA or comparable foreign regulatory 
authorities that a product candidate is safe and effective for its proposed indication; 

the results of clinical trials may not meet the level of statistical significance required by the FDA or 
comparable foreign regulatory authorities for approval; 

we may be unable to demonstrate that a product candidate’s clinical and other benefits outweigh its 
safety risks; 

41

•

•

•

•

the FDA or comparable foreign regulatory authorities may disagree with our interpretation of data from 
preclinical studies or clinical trials; 

the data collected from clinical trials of our product candidates may not be sufficient to support the 
submission of an NDA or other submission or to obtain regulatory approval in the United States or 
elsewhere; 

the FDA or comparable foreign regulatory authorities may fail to approve the manufacturing processes 
or facilities of third-party manufacturers with which we contract for clinical and commercial supplies; 
and 

the approval policies or regulations of the FDA or comparable foreign regulatory authorities may change 
significantly in a manner rendering our clinical data insufficient for approval. 

The lengthy approval process, as well as the unpredictability of future clinical trial results, may result in our 
failing to obtain regulatory approval to market ZILRETTA in additional indications or to market our other product 
candidates at all, which would harm our business, results of operations and prospects. 

In addition, even if we were to obtain approval for other product candidates or for ZILRETTA in other 

indications, regulatory authorities may approve such product candidates or indications for fewer or more limited 
indications than we request, may grant approval contingent on the performance of costly post-marketing clinical 
trials, or may approve a product candidate with a label that does not include the labeling claims necessary or 
desirable for the successful commercialization of that product candidate. Any of the foregoing scenarios could harm 
the commercial prospects for our product candidates.

Our product candidates may not receive regulatory approval despite success in clinical trials. Even if we 

successfully obtain regulatory approval to market one or more of our product candidates, our revenue will be 
dependent, to a significant extent, upon the size of the markets in the territories for which we gain regulatory 
approval. If the markets for patients or indications that we are targeting are not as significant as we estimate, we may 
not generate significant revenue from sales of such products, if approved. 

Changes in funding for the FDA and other government agencies could hinder their ability to hire and 
retain key leadership and other personnel, prevent new products from being developed or commercialized 
in a timely manner or otherwise prevent those agencies from performing normal functions on which the 
operation of our business may rely, which could negatively impact our business.

The ability of the FDA to review and approve new products can be affected by a variety of factors, including 
government budget and funding levels, ability to hire and retain key personnel and accept payment of user fees, and 
statutory, regulatory, and policy changes. Average review times at the agency have fluctuated in recent years as a 
result. In addition, government funding of other government agencies on which our operations may rely, including 
those that fund research and development activities is subject to the political process, which is inherently fluid and 
unpredictable.

Disruptions at the FDA and other agencies may also slow the time necessary for new drugs to be reviewed 

and/or approved by necessary government agencies or for labeling supplements and other regulatory requests to be 
acted upon, which would adversely affect our business. For example, over the last several years, including beginning 
on December 22, 2018 and ending on January 25, 2019, the U.S. government has shut down several times and 
certain regulatory agencies, such as the FDA, have had to furlough critical government employees and stop critical 
activities. If repeated or prolonged government shutdowns occur, it could significantly impact the ability of the FDA 
to timely review and process our regulatory submissions, and negatively impact other government operations on 
which we rely, which could have a material adverse effect on our business.

42

The FDA granted marketing approval of ZILRETTA for the treatment of patients with OA pain of the 
knee, and we could face liability if a regulatory authority determines that we are promoting ZILRETTA for 
any off-label uses. 

A company may not promote “off-label” uses for its drug products. An off-label use is the use of a product for 

an indication that is not described in the product’s FDA-approved label in the United States or for uses in other 
jurisdictions that differ from those approved by the applicable regulatory agencies. Physicians, on the other hand, 
may prescribe products for off-label uses. Although the FDA and other regulatory agencies do not regulate a 
physician’s choice of drug treatment made in the physician’s independent medical judgment, they do restrict 
promotional communications from pharmaceutical companies or their employees, including sales representatives, 
with respect to off-label uses of products for which marketing clearance has not been issued. A company that is 
found to have promoted off-label use of its product may be subject to significant liability, including civil and 
criminal sanctions. We intend to comply with the requirements and restrictions of the FDA and other regulatory 
agencies with respect to our promotion of ZILRETTA and any future products, but we cannot be sure that the FDA 
or other regulatory agencies will agree that we have not violated these restrictions. For example, as part of our 
promotion strategy for ZILRETTA we communicate certain results from our Phase 3 clinical trial and other clinical 
data that are consistent with, but not directly included in, the product label. While we believe our communication of 
this data is in accordance with FDA guidance and applicable laws, we cannot be certain that the FDA or other 
regulatory agencies will agree with our use of this data or our sales force may use such data in a way that is 
inconsistent with our policies. As a result, we may be subject to criminal and civil liability. In addition, our 
management’s attention could be diverted to handle any such alleged violations. A significant number of 
pharmaceutical companies have been the target of inquiries and investigations by various U.S. federal and state 
regulatory, investigative, prosecutorial and administrative entities in connection with the promotion of products for 
unapproved uses and other sales practices, including the Department of Justice and various U.S. Attorneys’ Offices, 
the Office of Inspector General of HHS, the FDA, the Federal Trade Commission and various state Attorneys 
General offices. These investigations have alleged violations of various U.S. federal and state laws and regulations, 
including claims asserting antitrust violations, violations of the Federal Food, Drug, and Cosmetic Act, or the 
FDCA, the federal False Claims Act, the Prescription Drug Marketing Act, anti-kickback laws, and other alleged 
violations in connection with the promotion of products for unapproved uses, pricing and Medicare and/or Medicaid 
reimbursement. If the FDA or any other governmental agency initiates an enforcement action against us or if we are 
the subject of a qui tam suit and it is determined that we violated prohibitions relating to the promotion of products 
for unapproved uses, we could be subject to substantial civil or criminal fines or damage awards and other sanctions 
such as consent decrees and corporate integrity agreements pursuant to which our activities would be subject to 
ongoing scrutiny and monitoring to ensure compliance with applicable laws and regulations. Any such fines, awards 
or other sanctions would have an adverse effect on our revenue, business, financial prospects and reputation. 

Any relationships with healthcare professionals, principal investigators, consultants, actual and potential 
customers, and third-party payers in connection with our current and future business activities are and will 
continue to be subject, directly or indirectly, to federal and state healthcare laws. If we are unable to 
comply, or have not fully complied, with such laws, we could face criminal sanctions, civil penalties, 
administrative penalties, imprisonment, exclusion, contractual damages, reputational harm, diminished 
profits and future earnings, additional reporting requirements and/or oversight, and curtailment or 
restructuring of our operations. 

Our operations are directly or indirectly subject to various federal and state healthcare laws, including without 

limitation, fraud and abuse laws, false claims laws, marketing expenditure tracking and disclosure (or “sunshine”) 
laws, government price reporting, and health information privacy and security laws. Our potential exposure under 
such laws increased significantly with the commercialization of ZILRETTA in the United States through our 
dedicated sales force. Our costs associated with compliance are also likely to increase. These laws may impact, 
among other things, our current activities with investigators and research subjects, as well as sales, marketing, 
promotion, manufacturing, distribution, pricing, discounting, customer incentive programs, physician speaker 
programs, and other business arrangements and activities. In addition, we may be subject to patient privacy 
regulation by the federal government and by the U.S. states and foreign jurisdictions in which we conduct our 
business. The laws that may affect our ability to operate include, but are not limited to: 

•

the federal Anti-Kickback Statute, which prohibits, among other things, individuals and entities from 
knowingly and willfully soliciting, receiving, offering or paying remuneration, directly or indirectly, in 

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•

•

•

•

•

•

•

•

cash or in kind, to induce or reward, or in return for, either the referral of an individual, or the purchase, 
lease, order or arranging for the purchase, lease, or order of any good, item or service for which payment 
may be made under a federal healthcare program, such as the Medicare and Medicaid programs; 

federal civil and criminal false claims laws and civil monetary penalties laws, including the federal False 
Claims Act, which prohibit, among other things, individuals or entities from knowingly presenting, or 
causing to be presented, to the federal government claims for payment that are false or fraudulent or 
making a false statement to avoid, decrease or conceal an obligation to pay money to the federal 
government; 

the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which imposes 
criminal and civil liability for, among other things, executing a scheme to defraud any healthcare benefit 
program or making false statements relating to healthcare matters; 

HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 
2009, and their respective implementing regulations, which impose requirements on certain healthcare 
providers, health plans, and healthcare clearinghouses, known as covered entities, as well as their 
business associates that perform services involving the use or disclosure of individually identifiable 
health information, relating to the privacy, security and transmission of individually identifiable health 
information; 

the federal Open Payments program, created under Section 6002 of the PPACA, and its implementing 
regulations, which requires manufacturers of drugs, devices, biologics and medical supplies for which 
payment is available under Medicare, Medicaid or the Children’s Health Insurance Program (with 
certain exceptions) to report annually to CMS information related to “payments or other transfers of 
value” made to physicians (defined to include doctors, dentists, optometrists, podiatrists and 
chiropractors) and teaching hospitals, and applicable manufacturers and applicable group purchasing 
organizations to report annually to CMS ownership and investment interests held by physicians (as 
defined above) and their immediate family members.  Beginning in 2022, applicable manufacturers also 
will be required to report such information regarding payments and transfers of value provided, as well 
as ownership and investment interests held, during the previous year to physician assistants, nurse 
practitioners, clinical nurse specialists, certified nurse anesthetists and certified nurse-midwives;

state, local, and foreign law equivalents of each of the above federal laws and regulations, 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 any third-party payer, including commercial 
insurers; state and foreign 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; state and foreign laws that require drug manufacturers to report information related to 
payments and other transfers of value to healthcare providers and entities, or marketing expenditures; 
state and local laws requiring the registration of pharmaceutical sales representatives; and state and 
foreign laws governing the privacy and security of health information in certain circumstances, many of 
which differ from each other in significant ways and may not have the same effect, and often are not 
preempted by HIPAA, thus complicating compliance efforts; 

the Foreign Corrupt Practices Act, or FCPA, a U.S. law which regulates certain financial relationships 
with foreign government officials (which could include, for example, certain medical professionals); 

federal and state consumer protection and unfair competition laws, which broadly regulate marketplace 
activities and activities that potentially harm consumers; 

state and federal government price reporting laws that require us to calculate and report complex pricing 
metrics to government programs, where such reported prices may be used in the calculation of 
reimbursement, rebates and/or discounts on our marketed drugs (participation in these programs and 
compliance with the applicable requirements may subject us to potentially significant discounts on our 
products, increased infrastructure costs, and potentially limit our ability to offer certain marketplace 
discounts); and

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•

the European Union’s General Data Protection Regulation ((EU) 2016/679), or GDPR, which went into 
effect in May 2018, and which introduces strict requirements for processing personal data of individuals 
within the EU.

Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws 

and regulations may involve substantial costs. It is possible that governmental and enforcement authorities will 
conclude that our business practices, including activities undertaken by third parties on our behalf, may not comply 
with current or future statutes, regulations or case law interpreting applicable fraud and abuse or other healthcare 
laws and regulations. For example, we participate in the Medicaid Drug Rebate Program, as administered by CMS, 
and other federal and state government pricing programs in the United States. These programs generally require us 
to pay rebates or otherwise provide discounts to government payers in connection with drugs that are dispensed to 
beneficiaries/recipients of these programs. In some cases, such as with the Medicaid Drug Rebate Program, the 
rebates are based on pricing that we report on a monthly and quarterly basis to the government agencies that 
administer the programs. Pricing requirements and rebate/discount calculations are complex, vary among products 
and programs, and are often subject to interpretation by governmental or regulatory agencies and the courts. Thus, 
there can be no assurance that we will be able to identify all factors that may cause our discount and rebate payment 
obligations, including as a result from recent changes to our commercial contracting and pricing strategies, to vary 
from period to period, and our actual results may differ significantly from our estimated allowances for discounts 
and rebates. Changes in estimates and assumptions may have a material adverse effect on our business, results of 
operations and financial condition. In addition, the HHS Office of Inspector General and other Congressional, 
enforcement and administrative bodies have recently increased their focus on pricing requirements for products, 
including, but not limited to the methodologies used by manufacturers to calculate average manufacturer price, or 
AMP, and best price, or BP, for compliance with reporting requirements under the Medicaid Drug Rebate Program. 
If our operations are found to be in violation of any of the laws described above or any other governmental 
regulations that apply to us, we may be subject to significant penalties, including, without limitation, civil, criminal, 
and administrative penalties, damages, fines, disgorgement, imprisonment, possible exclusion from participation in 
Medicare, Medicaid and other government healthcare programs, contractual damages, reputational harm, diminished 
profits and future earnings, additional reporting requirements and/or oversight if we become subject to a corporate 
integrity agreement or similar agreement to resolve allegations of non-compliance with these laws, and curtailment 
or restructuring of our operations. Moreover, while we do not bill third-party payers directly and our customers 
make the ultimate decision on how to submit claims, from time-to-time we may provide reimbursement guidance to 
patients and healthcare providers. If a government authority were to conclude that we provided improper advice 
and/or encouraged the submission of a false claim for reimbursement, we could face action against us by 
government authorities. If any of the physicians or other providers or entities with whom we do business is found to 
be not in compliance with applicable laws, they may be subject to significant criminal, civil or administrative 
sanctions, including exclusions from government funded healthcare programs and imprisonment. If any of the above 
occurs, it could adversely affect our ability to operate our business and our results of operations. In addition, the 
approval and commercialization of any of our product candidates outside of the United States will also likely subject 
us to foreign equivalents of the healthcare laws mentioned above, among other foreign laws. 

ZILRETTA is still subject to substantial, ongoing regulatory requirements, and our other product 
candidates may face future development and regulatory difficulties. 

The FDA approved ZILRETTA only for the treatment of OA knee pain. If any other ongoing clinical studies 

of ZILRETTA are negative, the FDA could decide to withdraw approval, add warnings or narrow the approved 
indication in the product label. 

ZILRETTA is, and, if approved, our other product candidates, will also be, subject to ongoing FDA 
requirements governing the labeling, packaging, storage, distribution, safety surveillance, advertising, promotion, 
record-keeping and reporting of safety and other post-market information. The holder of an approved NDA is 
obligated to monitor and report adverse events, or AEs, and any failure of a product to meet the specifications in the 
NDA. The holder of an approved NDA must also submit new or supplemental applications and obtain FDA 
approval for certain changes to the approved product, product labeling or manufacturing process. Advertising and 
promotional materials must comply with FDA rules and are subject to FDA review, in addition to other potentially 
applicable federal and state laws. 

45

In addition, manufacturers of drug products and their facilities are subject to payment of user fees and 
continual review and periodic inspections by the FDA and other regulatory authorities for compliance with current 
good manufacturing practices, or cGMP, and adherence to commitments made in the NDA. If we or a regulatory 
agency discover previously unknown problems with a product, such as AEs of unanticipated severity or frequency, 
or problems with the facility where the product is manufactured, a regulatory agency may impose restrictions 
relative to that product or the manufacturing facility, including requiring recall or withdrawal of the product from 
the market or suspension of manufacturing.  

We rely on third-party collaborators to assist us in meeting our reporting and related obligations.  While we 

work closely with these third parties, we do not control all of their activities.  If our third-party collaborators do not 
meet the relevant commitments, we may fail to meet our applicable regulatory requirements. 

If we fail to comply with applicable regulatory requirements for ZILRETTA or for any other approved 

product candidate, a regulatory agency may: 

•

•

•

•

•

•

•

issue a warning letter asserting that we are in violation of the law; 

seek an injunction or impose civil or criminal penalties or monetary fines; 

suspend or withdraw regulatory approval; 

suspend any ongoing clinical trials; 

refuse to approve a pending NDA or supplements to an NDA submitted by us; 

seize product; or 

refuse to allow us to enter into supply contracts, including government contracts. 

Any government investigation of alleged violations of law could require us to expend significant time and 
resources in response and could generate negative publicity. The occurrence of any event or penalty described above 
may inhibit our ability to commercialize our products and generate revenue. 

If we fail to develop, acquire or in-license other potential future product candidates or products, our 
business and prospects will be limited. 

Our long-term growth strategy is to develop, acquire or in-license and commercialize a portfolio of potential 

future product candidates in addition to ZILRETTA. Our primary means of expanding our pipeline of product 
candidates is to select and acquire or in-license product candidates for the treatment of therapeutic indications that 
complement or augment our current pipeline, or that otherwise fit into our development or strategic plans on terms 
that are acceptable to us, and/or develop improved formulations and delivery methods for existing FDA-approved 
products. Developing new formulations or delivery methods of existing or potential future product candidates or 
identifying, selecting and acquiring or in-licensing promising product candidates requires substantial technical, 
financial and human resources expertise.  Efforts to do so may not result in the actual development, acquisition or 
in-license of a particular product candidate, potentially resulting in a diversion of our management’s time and the 
expenditure of our resources with no resulting benefit. If we are unable to add additional product candidates to our 
pipeline, our long-term business and prospects will be limited. 

Risks Related to Our Reliance on Third Parties 

We rely completely on third parties to manufacture our commercial supplies of ZILRETTA and our 
preclinical and clinical drug supplies for our other product candidates. 

If we were to experience an unexpected loss of supply of ZILRETTA or our other product candidates for any 
reason, whether as a result of manufacturing, supply or storage issues or otherwise, we could experience disruptions 
in commercial supply of ZILRETTA or delays, suspensions or terminations of clinical trials or regulatory 
submissions. We do not currently have nor do we plan to acquire the infrastructure or capability internally to 
manufacture our preclinical and clinical drug supplies and we lack the resources and the capability to manufacture 
any of our product candidates on a clinical or commercial scale. The facilities used by our contract manufacturers or 

46

other third-party manufacturers to manufacture our products and product candidates, including Patheon with respect 
to finished drug supplies of ZILRETTA, must obtain and maintain approval by the FDA. While we work closely 
with our third-party manufacturers on the manufacturing process for our products and product candidates, including 
quality audits, we generally do not control the implementation of the manufacturing process of, and are completely 
dependent on, our contract manufacturers or other third-party manufacturers for compliance with cGMP regulatory 
requirements and for manufacture of both active drug substances and finished drug products. If our contract 
manufacturers or other third-party manufacturers cannot successfully manufacture material that conforms to 
applicable specifications and the strict regulatory requirements of the FDA or others, they will not be able to secure 
and/or maintain regulatory approval for their manufacturing facilities. 

In addition, we have no control over the ability of our contract manufacturers or other third-party 
manufacturers to maintain adequate quality control, quality assurance and qualified personnel. If the FDA or a 
comparable foreign regulatory authority does not approve, or withdraws approval for, these facilities for the 
manufacture of our products and product candidates, we may need to find alternative manufacturing facilities, which 
would significantly impact our ability to commercialize, develop, or obtain or maintain regulatory approval for our 
products and product candidates. 

We are particularly reliant on Patheon with respect to maintaining ZILRETTA manufacturing capacity. These 
Patheon facilities required approval from the FDA as a condition of regulatory approval for ZILRETTA, as we rely 
exclusively on Patheon for commercial supplies of ZILRETTA. In addition, because Patheon manufactures 
ZILRETTA in the United Kingdom, or U.K., it needs to maintain and update its facility license with the applicable 
U.K. regulatory agencies and any delay or inability to do so would delay or prevent Patheon from being able to 
produce commercial supplies of ZILRETTA. Furthermore, the manufacturing process for ZILRETTA is unique and 
involves specialized equipment and proprietary processes, which subjects us to heightened risks that Patheon will 
experience delays in the manufacturing process. 

We also rely on our manufacturers to purchase from third-party suppliers the materials necessary to produce 

ZILRETTA and our other product candidates for our clinical trials and commercial sales. There are a limited 
number of suppliers for raw materials that we use to manufacture our products and product candidates and we may 
need to assess alternate suppliers to prevent a possible disruption of the manufacture of the materials necessary to 
produce our product candidates for our clinical trials and ZILRETTA for commercial sale. We do not have any 
control over the process or timing of the acquisition of these raw materials by our manufacturers. Moreover, we 
currently do not have any agreements for the commercial production of these raw materials. Although we generally 
do not begin a clinical trial unless we believe we have a sufficient supply of a product candidate to complete the 
clinical trial, any significant delay in the supply of a product candidate, or the raw material components thereof, for 
an ongoing clinical trial due to the need to replace a contract manufacturer or other third-party manufacturer could 
considerably delay completion of our clinical trials, product testing and potential regulatory approval of our product 
candidates. If our manufacturers or we are unable to purchase these raw materials for ZILRETTA or for any other 
approved products, there would be a shortage in supply, which would impair our ability to generate revenue from 
the sale of our products, including ZILRETTA. 

We expect to continue to depend on contract manufacturers or other third-party manufacturers for the 
foreseeable future. We have entered into long-term commercial supply agreements with our current contract 
manufacturers in order to maintain adequate supplies to manufacture finished ZILRETTA drug product. We may, 
however, be unable to enter into such agreements or do so on commercially reasonable terms for potential future 
product candidates, which could have a material adverse impact upon our business. 

We rely on certain sole sources of supply for our products and product candidates and any disruption in the 
chain of supply may disrupt commercialization of ZILRETTA or cause delay in developing, obtaining 
approval for, and commercializing our products and product candidates. 

Currently, we use the following sole sources of supply for manufacturing ZILRETTA: Farmabios SpA for 
TA, Evonik Corporation for PLGA, and Patheon for finished microspheres drug product. Because of the unique 
equipment and process for loading TA onto PLGA microspheres, transferring finished drug product manufacturing 
activities for ZILRETTA to an alternate supplier would be a time-consuming and costly endeavor, and there are only 
a limited number of manufacturers that we believe are capable of performing this function for us. Switching 

47

ZILRETTA finished drug suppliers may involve substantial cost and could result in a failure to maintain adequate 
supplies of ZILRETTA. We expect that for the foreseeable future Patheon will be the only manufacturer qualified as 
a commercial supplier of ZILRETTA with the FDA. From time to time, commercial batches of ZILRETTA may fail 
to meet required specifications and be unavailable for commercial sale.  If we experience multiple successive batch 
failures, or if supply from Patheon is otherwise interrupted, there could be a significant disruption in commercial 
supply. Any alternative vendor would need to be qualified through an NDA supplement, which could result in 
further delay. The FDA or other regulatory agencies outside of the United States may also require additional studies 
if a new ZILRETTA supplier is relied upon for commercial production. 

These factors could cause the disruption of the commercialization of ZILRETTA; delay clinical trials, 
regulatory submissions, required approvals or commercialization of any of our other product or product candidates; 
cause us to incur higher costs; or prevent us from commercializing them successfully. Furthermore, if our suppliers 
fail to deliver the required clinical or commercial quantities of active pharmaceutical ingredient on a timely basis 
and at commercially reasonable prices and we are unable to secure one or more replacement suppliers capable of 
production at a substantially equivalent cost, our clinical trials may be delayed or we could lose potential revenue in 
the event of a product stockout for ZILRETTA or any of our other product candidates that is approved and launched

Our other product candidates also rely on sole sources of supply for the preclinical and clinical supply of materials. 
The manufacturing processes for our product candidates are complex, and it may be difficult or impossible to 
finalize appropriate processes for the scaled manufacture of the product candidates.

Manufacturing issues may arise that could increase product and regulatory approval costs or disrupt or 
delay commercialization. 

As we scale up manufacturing of ZILRETTA and other product candidates, we may encounter product, 
packaging, equipment and process-related issues that may require refinement or resolution in order to proceed with 
our planned clinical trials or maintain regulatory approval for commercial marketing. In the future, we may identify 
impurities or other product related issues, which could result in increased scrutiny by regulatory authorities, 
suspensions of commercial activities or product recalls, delays in our clinical program and regulatory approval, 
increases in our operating expenses, or failure to obtain or maintain approval for our products or product candidates. 

We rely on third parties to conduct our preclinical studies and clinical trials. If these third parties do not 
successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain 
regulatory approval for or commercialize our product candidates and our business could be substantially 
harmed. 

We rely upon and plan to continue to rely upon third-party CROs to monitor and manage data for our 
preclinical and clinical programs. We rely on these parties for execution of our preclinical studies and clinical trials, 
and control only certain aspects of their activities. Nevertheless, we are responsible for ensuring that each of our 
trials is conducted in accordance with the applicable protocol, legal, regulatory and scientific standards and our 
reliance on the CROs does not relieve us of our regulatory responsibilities. We and our CROs are required to 
comply with FDA laws and regulations regarding current good clinical practice, or GCP, which are also required by 
the Competent Authorities of the Member States of the European Economic Area and comparable foreign regulatory 
authorities in the form of International Council for Harmonization guidelines for all of our products in clinical 
development. Regulatory authorities enforce GCP through periodic inspections of trial sponsors, principal 
investigators and trial sites. If we or any of our CROs fail to comply with applicable GCP, the clinical data 
generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities 
may require us to perform additional clinical trials before approving our marketing applications. We cannot be 
certain that upon inspection by a given regulatory authority, such regulatory authority will determine that any of our 
clinical trials comply with GCP regulations. In addition, our clinical trials must be conducted with product produced 
under cGMP regulations. While we have agreements governing activities of our CROs, we have limited influence 
over their actual performance. In addition, portions of the clinical trials for our product candidates may be conducted 
outside of the United States, which will make it more difficult for us to monitor CROs and perform visits of our 
clinical trial sites and will force us to rely heavily on CROs to ensure the proper and timely conduct of our clinical 
trials and compliance with applicable regulations, including GCP. Failure to comply with applicable regulations in 

48

the conduct of the clinical trials for our product candidates may require us to repeat clinical trials, which would 
delay the regulatory approval process. 

Some of our CROs have an ability to terminate their respective agreements with us if, among other reasons, it 

can be reasonably demonstrated that the safety of the subjects participating in our clinical trials warrants such 
termination, if we make a general assignment for the benefit of our creditors or if we are liquidated. If any of our 
relationships with these third-party CROs terminate, we may not be able to enter into arrangements with alternative 
CROs or to do so on commercially reasonable terms. In addition, our CROs are not our employees, and except for 
remedies available to us under our agreements with such CROs, we cannot control whether or not they devote 
sufficient time and resources to our preclinical and clinical programs. If CROs do not successfully carry out their 
contractual duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy 
of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols, regulatory 
requirements or for other reasons, our clinical trials may be extended, delayed or terminated and we may not be able 
to obtain regulatory approval for or successfully commercialize our product candidates. Consequently, our results of 
operations and the commercial prospects for our product candidates would be harmed, our costs could increase 
substantially and our ability to generate revenue could be delayed significantly. 

Switching or adding additional CROs involves additional cost and requires management time and focus. In 
addition, there is a natural transition period when a new CRO commences work. As a result, delays occur, which can 
materially impact our ability to meet our desired clinical development timelines. Though we carefully manage our 
relationships with our CROs, there can be no assurance that we will not encounter challenges or delays in the future 
or that these delays or challenges will not have a material adverse impact on our business, financial condition and 
prospects.

We may not be successful in establishing development and commercialization collaborations, which could 
adversely affect, and potentially prohibit, our ability to fully commercialize ZILRETTA or to develop our 
product candidates. 

Because developing pharmaceutical products, conducting clinical trials, obtaining regulatory approval, 

establishing manufacturing capabilities and marketing approved products are expensive, we are exploring 
collaborations with third parties that have more resources and experience. For example, we are exploring selective 
partnerships with third parties for ZILRETTA’s development and commercialization outside of the United States. If 
we are unable to obtain a partner for ZILRETTA, we may be unable to advance the development of ZILRETTA in 
territories outside of the United States, which may limit its market potential. In situations where we enter into a 
development and commercial collaboration arrangement for a product candidate, we may also seek to establish 
additional collaborations for development and commercialization in territories outside of those addressed by the first 
collaboration arrangement for such product candidate. If any of our product candidates, in addition to ZILRETTA, 
receives marketing approval, we may enter into sales and marketing arrangements with third parties with respect to 
otherwise unlicensed or unaddressed territories outside of the United States. There are a limited number of potential 
partners, and we expect to face competition in seeking appropriate partners. If we are unable to enter into any 
development and commercial collaborations and/or sales and marketing arrangements on acceptable terms, or at all, 
we may be unable to successfully develop and seek regulatory approval for our product candidates and/or effectively 
market and sell ZILRETTA and any other future approved products, if any, in all of the territories outside of the 
United States where it may otherwise be valuable to do so. 

We may not be successful in maintaining development and commercialization collaborations, and our 
partners may not devote sufficient resources to the development or commercialization of our products or 
product candidates or may otherwise fail in development or commercialization efforts, which could 
adversely affect our ability to develop or commercialize certain of our products or product candidates and 
our financial condition and operating results. 

Even if we are able to establish collaboration arrangements, any such collaboration may not ultimately be 

successful, which could have a negative impact on our business, results of operations, financial condition and 
growth prospects. If we partner with a third party for development and commercialization of a product candidate, we 
can expect to relinquish some or all of the control over the future success of that product candidate to the third party. 
It is possible that a partner may not devote sufficient resources to the development or commercialization of our 

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product candidate or may otherwise fail in development or commercialization efforts, in which event the 
development and commercialization of such product candidate could be delayed or terminated, and our business 
could be substantially harmed. In addition, the terms of any collaboration or other arrangement that we establish 
may not prove to be favorable to us or may not be perceived as favorable, which may negatively impact the trading 
price of our common stock. In some cases, we may be responsible for continuing development of a product or 
product candidate or research program under collaboration and the payment we receive from our partner may be 
insufficient to cover the cost of this development. Moreover, collaborations and sales and marketing arrangements 
are complex and time consuming to negotiate, document and implement and they may require substantial resources 
to maintain. 

We may become subject to a number of additional risks associated with our dependence on collaborations 

with third parties, the occurrence of which could cause our collaboration arrangements to fail. Conflicts may arise 
between us and partners, such as conflicts concerning the interpretation of clinical data, the achievement of 
milestones, the division of development or commercialization responsibilities or expenses, the interpretation of 
financial provisions or the ownership of intellectual property developed during the collaboration. If any such 
conflicts arise, a partner could act in its own self-interest, which may be adverse to our best interests. Any such 
disagreement between us and a partner could result in one or more of the following, each of which could delay or 
prevent the development or commercialization of our products or product candidates, and in turn prevent us from 
generating sufficient revenue to achieve or maintain profitability: 

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reductions in the payment of royalties or other payments we believe are due pursuant to the applicable 
collaboration arrangement; 

actions taken by a partner inside or outside our collaboration which could negatively impact our rights 
or benefits under our collaboration; or 

unwillingness on the part of a partner to keep us informed regarding the progress of its development and 
commercialization activities or to permit public disclosure of the results of those activities. 

Risks Related to Our Business Operations and Industry 

The novel coronavirus global pandemic could adversely impact our business, including our supply chain, 
clinical trials and commercialization of ZILRETTA.

In December 2019, a novel strain of coronavirus, which causes the COVID-19 disease, was first reported in 
Wuhan, China and has since become a global pandemic (the “Coronavirus”). If the Coronavirus continues to spread, 
particularly in the United States and Europe, we may experience disruptions that could severely impact our supply 
chain, on-going and future clinical trials and commercialization of ZILRETTA. 

For example, the Coronavirus has resulted in increased travel restrictions and the shutdown or delay of 

business activities in various regions, including certain activities of one of our suppliers in Italy. To the extent our 
suppliers and service providers are unable to comply with their obligations under our agreements with them or they 
are otherwise unable to deliver or are delayed in delivering goods and services to us due to the Coronavirus, our 
ability to continue meeting commercial demand for ZILRETTA in the United States or advancing development of 
our product candidates may become impaired. Travel restrictions and shutdowns in business operations as a result of 
the outbreak may also limit our ability to pursue business development activities.

In addition, our commercialization of ZILRETTA may be adversely impacted by the Coronavirus, which 
could result in patients postponing visits to healthcare provider facilities, healthcare providers closing temporarily 
closing their offices or restricting patient visits, healthcare provider employees being unavailable and general 
disruptions in the operations of payors, distributors, logistics providers and other third parties that are necessary for 
ZILRETTA to be prescribed, reimbursed and administered to patients.

The Coronavirus continues to rapidly evolve. The extent to which the Coronavirus may impact our business, 

including our supply chain, clinical trials and commercialization of ZILRETTA, will depend on future 
developments, which are highly uncertain and cannot be predicted with confidence, such as the ultimate geographic 
spread of the pandemic, the duration of the pandemic, travel restrictions and social distancing in the United States 

50

and other countries, business closures or business disruptions and the effectiveness of actions taken in the United 
States and other countries to contain and treat the pandemic.

Our future success depends on our ability to retain key executives and to attract, retain and motivate 
qualified personnel. 

We are highly dependent on the principal members of our executive team, the loss of whose services may 

adversely impact the achievement of our objectives. While we have entered into employment agreements or offer 
letters with each of our executive officers, any of them could leave our employment at any time, as all of our 
employees are “at will” employees. Recruiting and retaining other qualified employees for our business, including 
scientific and technical personnel, will also be critical to our success. There is currently a shortage of skilled 
executives and other technically qualified personnel in our industry, particularly in the greater Boston, 
Massachusetts area where our headquarters is located, which is likely to continue. As a result, competition for 
skilled personnel is intense and the turnover rate can be high. We may not be able to attract and retain personnel on 
acceptable terms given the competition among numerous biotechnology and pharmaceutical companies for 
individuals with similar skill sets. In addition, failure to succeed in the commercialization of ZILRETTA or clinical 
studies of our product candidates may make it more challenging to recruit and retain qualified personnel. The 
inability to recruit or the loss of the services of any executive or key employee might impede the progress of our 
development and commercialization objectives. 

We face potential product liability, and, if successful claims are brought against us, we may incur 
substantial liability. 

The use of our product candidates in clinical trials and the sale of ZILRETTA and any other products for 
which we obtain marketing approval exposes us to the risk of product liability claims. Product liability claims might 
be brought against us by consumers, healthcare providers, or others coming into contact with our products or 
product candidates. If we cannot successfully defend against product liability claims, we could incur substantial 
liability and costs. In addition, regardless of merit or eventual outcome, product liability claims may result in: 

•

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•

•

•

•

•

impairment of our business reputation and perception of our products in the market; 

withdrawal or suspension of marketing approvals; 

withdrawal of clinical trial participants; 

costs due to related litigation; 

distraction of management’s attention from our primary business; 

substantial monetary awards to patients or other claimants; 

the inability to commercialize our product candidates; 

decreased demand for our products approved for commercial sale; and

reputational harm. 

Our current product liability insurance coverage may not be sufficient to reimburse us for any expenses or 

losses we may suffer. Moreover, insurance coverage is becoming increasingly expensive and in the future we may 
not be able to maintain insurance coverage at a reasonable cost or in sufficient amounts to protect us against losses 
due to liability. On occasion, large judgments have been awarded in class action or mass tort lawsuits based on drugs 
that had unanticipated adverse effects. A successful product liability claim or series of claims brought against us 
could cause our stock price to decline and, if judgments exceed our insurance coverage, could adversely affect our 
results of operations and business. 

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If we collaborate with third parties to develop and commercialize products outside of the United States, a 
variety of risks associated with international operations could materially and adversely affect our business. 

If we enter into agreements with third parties to market ZILRETTA, and if approved, our other product 

candidates, outside of the United States, we expect to be subject to additional risks related to entering into 
international business relationships, including: 

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different regulatory requirements for drug approvals in foreign countries; 

reduced protection for intellectual property rights; 

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 taxes, including withholding of payroll taxes; 

foreign currency fluctuations, which could result in increased operating expenses and reduced revenue, 
and other obligations incidental to doing business in another country; 

workforce uncertainty in countries where labor unrest is more common than in the United States; 

different government payer systems, multiple payer-reimbursement regimes or patient self-pay systems, 
and price controls;

potential noncompliance with the FCPA, the U.K. Bribery Act 2010, or similar antibribery and 
anticorruption laws in other jurisdictions as well as various regulations pertaining to data privacy, such 
as the GDPR;

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, including earthquakes, typhoons, floods and fires. 

We rely significantly on information technology and any failure, inadequacy, interruption or security lapse 
of that technology, including any cybersecurity incidents, could harm our ability to operate our business 
effectively. 

Despite the implementation of security measures, our internal computer systems and those of third parties with 

which we contract are vulnerable to damage from cyber-attacks, computer viruses, unauthorized access, natural 
disasters, terrorism, war and telecommunication and electrical failures. System failures, accidents or security 
breaches could cause interruptions in our operations and could result in a material disruption of our commercial and 
clinical activities and business operations, in addition to possibly requiring substantial expenditures of resources to 
remedy. The loss of clinical trial data could result in delays in our regulatory approval efforts and significantly 
increase our costs to recover or reproduce the data. To the extent that any disruption or security breach were to result 
in a loss of, or damage to, our data or applications, or inappropriate disclosure of confidential or proprietary 
information, we could incur liability and our development programs, and the development of our product candidates 
could be delayed. 

If we fail to comply with applicable U.S. and foreign privacy and data protection laws and regulation, we 
may be subject to liabilities that adversely affect our business, operations and financial performance.

We are subject to laws and regulations requiring that we take measures to protect the privacy and security of 

certain information we gather and use in our business. For example, HIPAA, and its implementing regulations 
impose, among other requirements, certain regulatory and contractual requirements regarding the privacy and 
security of personal health information on covered entities, such as health plans, healthcare clearinghouses and 

52

certain healthcare providers, as well as their business associates that perform certain services involving the use or 
disclosure of personal health information. In addition to HIPAA, numerous other federal and state laws, including, 
without limitation, state security breach notification laws, state health information privacy laws and federal and state 
consumer protection laws, govern the collection, use, and storage of personal information.

We may also be subject to or affected by foreign laws and regulation, including regulatory guidance, 

governing the collection, use, disclosure, security, transfer and storage of personal data, such as information that we 
collect about employees, patients and healthcare providers in connection with clinical trials and our other operations 
in the U.S. and abroad. The global legislative and regulatory landscape for privacy and data protection continues to 
evolve, and implementation standards and enforcement practices are likely to remain uncertain for the foreseeable 
future. This evolution may create uncertainty in our business, result in liability or impose additional costs on us. The 
cost of compliance with these laws, regulations and standards is high and is likely to increase in the future. For 
example, the EU has adopted the GDPR, which introduced strict requirements for processing personal data. The 
GDPR is likely to increase compliance burdens on us, including by mandating potentially burdensome 
documentation requirements and granting certain rights to individuals to control how we collect, use, disclose, retain 
and leverage information about them. In addition, the GDPR provides for breach reporting requirements, more 
robust regulatory enforcement and fines of up to 20 million euros or up to 4% of the annual global revenue. While 
companies are afforded some flexibility in determining how to comply with the GDPR’s various requirements, it has 
and will continue to require significant effort and expense to ensure continuing compliance with the GDPR. 
Moreover, the requirements under the GDPR may change periodically or may be modified by European Union, or 
EU, national law, and could have an effect on our business operations if compliance becomes substantially costlier 
than under current requirements. It is possible that each of these privacy laws may be interpreted and applied in a 
manner that is inconsistent with our practices. Any failure or perceived failure by us to comply with federal, state or 
foreign laws or self-regulatory standards could result in negative publicity, diversion of management time and effort 
and proceedings against us by governmental entities or others. In many jurisdictions, enforcement actions and 
consequences for noncompliance are rising. As we continue to expand into other foreign countries and jurisdictions, 
we may be subject to additional laws and regulations that may affect how we conduct business.

Business interruptions could delay us in the process of developing or commercializing our products and 
product candidates. 
Our headquarters are located in Burlington, Massachusetts. We are vulnerable to natural disasters such as 

hurricanes, tornadoes and severe storms, as well as other events that could disrupt our operations. We do not carry 
insurance for natural disasters and we may not carry sufficient business interruption insurance to compensate us for 
losses that may occur. Any losses or damages we incur could have a material adverse effect on our business 
operations. Further, our operations, and those of our contractors, consultants and collaborators, could be subject to 
earthquakes, power shortages, telecommunications failures, water shortages, floods, hurricanes, typhoons, fires, 
extreme weather conditions, medical epidemics and other natural or man-made disasters or business interruptions, 
for which we are predominantly self-insured. To the extent our suppliers and service providers are unable to comply 
with their obligations under our agreements with them or they are otherwise unable to deliver or are delayed in 
delivering goods and services to us, our ability to continue meeting commercial demand for ZILRETTA in the 
United States or advancing development of our product candidates may become impaired. 

Exposure to U.K. political developments, including the outcome of the referendum on membership in the 
European Union, could impact our suppliers and harm our business.

The U.K.’s referendum to leave the EU, or “Brexit,” has caused and may continue to cause disruptions to 
capital and currency markets worldwide. The full impact of the Brexit decision, however, remains uncertain. A 
process of negotiation will determine the future terms of the U.K.’s relationship with the EU.  During this period of 
negotiation, our results of operations and access to capital may be negatively affected by interest rate, exchange rate 
and other market and economic volatility, as well as regulatory and political uncertainty. The tax consequences of 
the U.K.’s withdrawal from the EU are uncertain as well. Brexit may also have a detrimental effect on our suppliers, 
which could, in turn, adversely affect our revenues and financial condition.

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Risks Related to Our Intellectual Property 

If we are unable to obtain or protect intellectual property rights, we may not be able to compete effectively 
in our market. 

We rely upon a combination of patents, trade secret protection, confidentiality agreements and proprietary 
know how, and intend to seek marketing exclusivity for any approved product, including ZILRETTA, in order to 
protect the intellectual property related to our products and product candidates, and to date we have three issued 
patents covering ZILRETTA in the United States. 

The strength of patents in the biotechnology and pharmaceutical field involves complex legal and scientific 

questions and can be uncertain. As a result, the issuance, scope, validity, enforceability and commercial value of our 
patent rights and our current or future licensors’ or collaborators’ patent rights are highly uncertain.  The patent 
applications that we own or in-license may fail to result in issued patents with claims that cover our products or 
product candidates in the United States, including through the inter-partes review process, or in other foreign 
countries. Even for our issued patents and if other patents do successfully issue, third parties may challenge their 
inventorship, ownership, validity, enforceability or scope in the courts or patent offices in the United States and 
abroad.  This may result in such patents being narrowed or invalidated, which could limit our ability to stop others 
from using or commercializing similar or identical technologies or products, or limit the duration of the patent 
protection for our technologies and products. If this were to occur, early generic competition could be expected 
against ZILRETTA and potentially reduce the value of our product candidates in development. Also, a third party 
may challenge our rights to patents and patent applications that we license from third parties. Furthermore, even if 
they are unchallenged, our patents and patent applications may not adequately protect our intellectual property or 
prevent others from designing around our claims. 

If our patent applications with respect to ZILRETTA or our other product candidates fail to issue or if their 
breadth or strength of protection is threatened, it could dissuade companies from collaborating with us to develop 
ZILRETTA or our other product candidates and threaten our ability to commercialize any resulting products. We 
cannot offer any assurances about which, if any, patents will issue or whether any issued patents will not be found 
invalid and unenforceable or will go unthreatened by third parties. Further, if we encounter delays in regulatory 
approvals for additional indications or in additional jurisdictions, the period of time during which we could market 
ZILRETTA or any product candidate under patent protection could be reduced. See “Business—Patents and Patent 
Applications” in this Annual Report on Form 10-K for additional information regarding our material patents and 
patent applications. 

In addition to the protection afforded by patents, we rely on trade secret protection and confidentiality 

agreements to protect proprietary know-how that is not patentable, processes for which patents are difficult to 
enforce and any other elements of our drug development process that involve proprietary know-how, information or 
technology that is not covered by patents. For example, we maintain trade secrets with respect to certain of the 
formulation and manufacturing techniques related to the TA-formulated PLGA microspheres in ZILRETTA, 
including those that relate to precise pharmaceutical release. Although we generally require all of our employees to 
assign their inventions to us, and all of our employees, consultants, advisors and any third parties who have access to 
our proprietary know-how, information or technology to enter into confidentiality agreements, we cannot provide 
any assurances that all such agreements have been duly executed or that our trade secrets and other confidential 
proprietary information will not be disclosed or that competitors will not otherwise gain access to our trade secrets 
or independently develop substantially equivalent information and techniques. Further, the laws of some foreign 
countries do not protect proprietary rights to the same extent or in the same manner as the laws of the United States. 
As a result, we may encounter significant problems in protecting and defending our intellectual property both in the 
United States and abroad. If we are unable to prevent material disclosure of the non-patented intellectual property 
related to our technologies to third parties, and there is no guarantee that we will have any such enforceable trade 
secret protection, we may not be able to establish or maintain a competitive advantage in our market, which could 
materially adversely affect our business, results of operations and financial condition. 

54

Third party claims of intellectual property infringement may prevent or delay our development and 
commercialization efforts. 

Our commercial success depends in part on our avoiding infringement of the patents and proprietary rights of 
third parties. There is a substantial amount of litigation, both within and outside the United States, involving patent 
and other intellectual property rights in the biotechnology and pharmaceutical industries, including patent 
infringement lawsuits, interferences, oppositions and inter party reexamination proceedings before the U.S. Patent 
and Trademark Office, or U.S. PTO. Numerous U.S. and foreign issued patents and pending patent applications, 
which are owned by third parties, exist in the fields in which we and our collaborators are commercializing or 
developing product candidates. As the biotechnology and pharmaceutical industries expand and more patents are 
issued, the risk increases that our products and product candidates may be subject to claims of infringement of the 
patent rights of third parties.

Third parties may assert that we are employing their proprietary technology without authorization. There may 

be third-party patents or patent applications with claims to materials, formulations, methods of manufacture or 
methods for treatment related to the use or manufacture of ZILRETTA and/or our product candidates. Because 
patent applications can take many years to issue, there may be currently pending patent applications which may later 
result in issued patents that our products or product candidates may infringe. In addition, third parties may obtain 
patents in the future and claim that use of our technologies infringes upon these patents. If any third-party patents 
were held by a court of competent jurisdiction to cover the manufacturing process of any of our products or product 
candidates, any drug substance formed during the manufacturing process or any final product itself, the holders of 
any such patents may be able to block our ability to commercialize such product or product candidate unless we 
obtain a license under the applicable patents, or until such patents expire. Similarly, if any third-party patent were 
held by a court of competent jurisdiction to cover aspects of our formulations or methods of use, the holders of any 
such patent may be able to block our ability to develop and commercialize the applicable product or product 
candidate unless we obtain a license or until such patent expires. In either case, such a license may not be available 
on commercially reasonable terms or at all. 

Parties making claims against us may request and/or obtain injunctive or other equitable relief, which could 

effectively block our ability to further develop and commercialize one or more of our products or product 
candidates. Defense of these claims, regardless of their merit, would involve substantial litigation expense and 
would be a substantial diversion of employee resources from our business. In the event of a successful claim of 
infringement against us, we may have to pay substantial damages, including treble damages and attorneys’ fees for 
willful infringement, obtain one or more licenses from third parties, pay royalties or redesign our infringing products 
or manufacturing processes, which may be impossible or require substantial time and monetary expenditure. We 
cannot predict whether any such license would be available at all or whether it would be available on commercially 
reasonable terms. Furthermore, even in the absence of litigation, we may need to obtain licenses from third parties to 
advance our research, manufacture clinical trial supplies or allow commercialization of our product candidates. We 
may fail to obtain any of these licenses at a reasonable cost or on reasonable terms, if at all. In that event, we would 
be unable to further develop and commercialize one or more of our products or product candidates, which could 
harm our business significantly. We cannot provide any assurances that third party patents do not exist which might 
be enforced against our products, resulting in either an injunction prohibiting our sales, or, with respect to our sales, 
an obligation on our part to pay royalties and/or other forms of compensation to third parties. 

We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which 
could be expensive, time consuming and unsuccessful. 

Competitors may infringe our issued patents, licensed patents or our other intellectual property. In some cases, 

it may be difficult or impossible to detect third-party infringement or misappropriation of our intellectual property 
rights, even in relation to issued patent claims, and proving any such infringement may be even more difficult. 
Accordingly, for such undetectable infringement or misappropriation our ability to recover damages will be 
negligible, and we could be at a market disadvantage because we may lack the resources of some of our competitors 
to monitor for and detect infringement. To counter infringement or unauthorized use, we may be required to file 
infringement claims, which can be expensive and time consuming. Any claims we assert against perceived infringers 
could provoke these parties to assert counterclaims against us alleging that we infringe their patents. In addition, in 
any patent infringement proceeding, a court may decide that a patent of ours is invalid or unenforceable, in whole or 
in part, construe the patent’s claims narrowly or refuse to stop the other party from using the technology at issue on 

55

the grounds that our patents do not cover the technology. An adverse result in litigation proceedings could put one or 
more of our patents at risk of being invalidated or interpreted narrowly. Furthermore, because of the substantial 
amount of discovery required in connection with intellectual property litigation, there is a risk that some of our 
confidential information could be compromised by disclosure during this type of litigation. 

Obtaining and maintaining our patent protection depends on compliance with various procedural, 
document submissions, 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. 

Periodic maintenance fees on any issued patent are due to be paid to the U.S. PTO and foreign patent agencies 

in several stages over the lifetime of the patent. The U.S. PTO 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. While an inadvertent 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 non-compliance can result in 
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 fail to maintain the patents and 
patent applications covering our product candidates, our competitors might be able to enter the market, which would 
have a material adverse effect on our business. 

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 the laws of foreign countries may not protect our rights to the same extent as the laws 
of the United States. Consequently, we may not be able to prevent third parties from infringing on our intellectual 
property rights in all countries outside the United States, and 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 that in the 
United States. These products may compete with our products in jurisdictions where we do not have any issued 
patents and our patent claims or other intellectual property rights may not be effective or sufficient to prevent them 
from so competing.

Many companies have encountered significant problems in protecting and defending intellectual property 

rights in foreign jurisdictions. The legal systems of certain countries, particularly certain developing countries, do 
not favor the enforcement of patents and other intellectual property protection, which could make it difficult for us 
to stop the infringement of our patents or marketing of competing products in violation of our proprietary rights 
generally. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial cost and divert 
our efforts and attention from other aspects of our business.

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 pharmaceutical companies. 
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. We 
may also be subject to claims that former employers or other third parties have an ownership interest in our patents. 
Litigation may be necessary to defend against these claims. There is no guarantee of success in defending these 
claims, and if we are successful, litigation could result in substantial cost and be a distraction to our management 
and other employees.

Our owned or licensed patents directed to our product candidates may expire or have limited commercial 
life before the product candidate is approved for marketing in a relevant jurisdiction.

Given the amount of time required for the development, testing and regulatory review of new product 
candidates, patents protecting our product candidates might expire before or shortly after our product candidates 
obtain regulatory approval, which may subject us to increased competition and reduce or eliminate our ability to 

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recover our development costs. As a result, our owned and licensed patent portfolio may not provide us with 
sufficient rights to exclude others from commercializing products similar or identical to ours. Although we may be 
able to seek extensions of patent terms where available, including in the United States under the Drug Price 
Competition and Patent Term Restoration Act of 1984, which permits a patent term extension of up to five years 
beyond the expiration of the patent, we cannot be certain that an extension will be granted, or if granted, what the 
applicable time period or the scope of patent protection afforded during any extended period will be. The applicable 
authorities, including the EMA, FDA, and any equivalent regulatory authority in other countries, may not agree with 
our assessment of whether such extensions are available, and may refuse to grant extensions to our patents, or may 
grant more limited extensions than we request. If this occurs, our competitors may take advantage of our investment 
in development and trials by referencing our clinical and preclinical data and launch their product earlier than might 
otherwise be the case.

Changes in U.S. patent law could diminish the value of patents in general, thereby impairing our ability to 
protect our products. 

Our success is heavily dependent on intellectual property, particularly patents. Obtaining and enforcing 
patents in the biotechnology industry involve both technological and legal complexity and is therefore costly, time-
consuming and inherently uncertain. In addition, the United States has recently enacted and is currently 
implementing wide-ranging patent reform legislation. Recent U.S. Supreme Court rulings have narrowed the scope 
of patent protection available in certain circumstances and weakened the rights of patent owners in certain situations. 
In addition to increasing uncertainty with regard to our ability to obtain patents in the future, this combination of 
events has created uncertainty with respect to the value of patents, once obtained. Depending on decisions by the 
U.S. Congress, the federal courts, and the U.S. PTO, the laws and regulations governing patents could change in 
unpredictable ways that would weaken our ability to obtain new patents or to enforce our existing patents and 
patents that we might obtain in the future.

We have in-licensed or acquired a portion of our intellectual property necessary to develop our product 
candidates, and if we fail to comply with our obligations under any of these arrangements, we could lose 
such intellectual property rights.

We are a party to and rely on several arrangements with third parties, which give us rights to intellectual 
property that is necessary for the manufacture of ZILRETTA and the development of FX201 and FX301. Our 
current arrangements impose various development, royalty and other obligations on us. If we materially breach these 
obligations or if our counterparts fail to adequately perform their respective obligations, these exclusive 
arrangements could be terminated, which would result in our inability to develop, manufacture and sell products that 
are covered by such intellectual property.

We may need to obtain licenses from third parties to advance our research or allow commercialization of our 

product candidates, and we have done so from time to time. We may fail to obtain any of these licenses at a 
reasonable cost or on reasonable terms, if at all. In that event, we may be required to expend significant time and 
resources to develop or license replacement technology. If we are unable to do so, we may be unable to develop or 
commercialize our affected product candidates, which could harm our business significantly. We cannot provide any 
assurances that third-party patents do not exist which might be enforced against our current product candidates or 
future products, resulting in either an injunction prohibiting our sales, or, with respect to our sales, an obligation on 
our part to pay royalties and/or other forms of compensation to such third parties. 

In many cases, patent prosecution of our licensed technology is controlled solely by the licensor. If our 
licensors fail to obtain and maintain patent or other protection for the proprietary intellectual property we license 
from them, we could lose our rights to the intellectual property or our exclusivity with respect to those rights, and 
our competitors could market competing products using the intellectual property. In certain cases, we control the 
prosecution of patents resulting from licensed technology. In the event we breach any of our obligations related to 
such prosecution, we may incur significant liability to our licensing partners. Licensing of intellectual property is of 
critical importance to our business and involves complex legal, business and scientific issues and is complicated by 
the rapid pace of scientific discovery in our industry. Disputes may arise regarding intellectual property subject to a 
licensing agreement, including: 

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the scope of rights granted under the license agreement and other interpretation-related issues; 

the extent to which our technology and processes infringe on intellectual property of the licensor that is not 
subject to the licensing agreement; 

the sublicensing of patent and other rights under our collaborative development relationships; 

our diligence obligations under the license agreement and what activities satisfy those diligence 
obligations; 

the ownership of inventions and know-how resulting from the joint creation or use of intellectual property 
by our licensors and us and our partners; and 

the priority of invention of patented technology. 

If disputes over intellectual property that we have licensed prevent or impair our ability to maintain our 
current licensing arrangements on acceptable terms, we may be unable to successfully develop and commercialize 
the affected product candidates.

If our trademarks and trade names are not adequately protected, then we may not be able to build name 
recognition in our markets of interest and our business may be adversely affected. 

If our trademarks and trade names are not adequately protected, then we may not be able to build name 
recognition in our markets of interest and our business may be adversely affected. Our unregistered trademarks or 
trade names may be challenged, infringed, circumvented or declared generic or determined to be infringing on other 
marks. We may not be able to protect our rights to these trademarks and trade names, which we need to build name 
recognition among potential partners or future, potential customers in our markets of interest. At times, competitors 
may adopt trade names or trademarks similar to ours, thereby impeding our ability to build brand identity and 
possibly leading to market confusion. In addition, there could be potential trade name or trademark infringement 
claims brought by owners of other registered trademarks or trademarks that incorporate variations of our 
unregistered trademarks or trade names. If we are unable to successfully register our trademarks and trade names 
and establish name recognition based on our trademarks and trade names, then we may not be able to compete 
effectively, and our business may be adversely affected. Our efforts to enforce or protect our proprietary rights 
related to trademarks, trade secrets, domain names, copyrights or other intellectual property may be ineffective and 
could result in substantial costs and diversion of resources and could adversely impact our financial condition or 
results of operations.

Risks Related to Ownership of Our Common Stock 

The market price of our common stock may be highly volatile, you may not be able to resell your shares at a 
desired market price and you could lose all or part of your investment. 

The trading price of our common stock is likely to be volatile. Our stock price could be subject to wide 

fluctuations in response to a variety of factors, including the following: 

•

•

•

•

the success or perceived success of the commercialization of ZILRETTA; 

inability to obtain approval for additional indications for ZILRETTA;

failure to successfully develop and commercialize additional product candidates; 

changes in the structure of healthcare payment systems;

58

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

adverse results or delays in clinical trials; 

inability to obtain additional funding; 

changes in laws or regulations applicable to our products or product candidates; 

inability to obtain adequate product supply for our products or product candidates, or the inability to do 
so at acceptable prices; 

adverse regulatory decisions; 

introduction of new products or technologies by our competitors; 

failure to meet or exceed product development or financial projections we provide to the public; 

failure to meet or exceed the estimates and projections of the investment community; 

the perception of the pharmaceutical industry by the public, legislatures, regulators and the investment 
community; 

announcements of significant acquisitions, strategic partnerships, joint ventures or capital commitments 
by us or our competitors; 

disputes or other developments relating to proprietary rights, including patents, litigation matters and 
our ability to obtain patent protection for our technologies; 

additions or departures of key scientific or management personnel; 

significant lawsuits, including patent, product liability or stockholder litigation; 

changes in the market valuations of similar companies; 

sales of our common stock by us or our stockholders in the future; and 

trading volume of our common stock. 

The trading price of our common stock may also be dependent upon the valuations and recommendations of 

the analysts who cover our company. If our results do not meet these analysts’ forecasts, the expectations of our 
investors or any financial guidance or expectations we provide to investors in any period, the market price of our 
common stock could decline. Our ability to meet analysts’ forecasts (including revenue and profitability), investors’ 
expectations and our own guidance or financial expectations is substantially dependent on our ability to increase 
sales of ZILRETTA and to successfully commercialize ZILRETTA in the United States. Because we are in the early 
stages of the ZILRETTA launch, we and the analysts who cover our company have limited ability to accurately 
predict future sales results, and actual results may differ materially from our expectations or those of such analysts. 

In addition, the stock market in general, and the Nasdaq Global Market in particular, have experienced 

extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating 
performance of companies like ours. Broad market and industry factors may continue to negatively affect the market 
price of our common stock, regardless of our actual operating performance.  

If we fail to maintain an effective system of internal control over financial reporting, we may not be able to 
accurately report our financial results or prevent fraud. As a result, stockholders could lose confidence in 
our financial and other public reporting, which would harm our business and the trading price of our 
common stock. 

Effective internal controls over financial reporting are necessary for us to provide reliable financial reports 

and, together with adequate disclosure controls and procedures, are designed to prevent fraud. Any failure to 
implement required new or improved controls, or difficulties encountered in their implementation could cause us to 
fail to meet our reporting obligations. In addition, any testing by us conducted in connection with Section 404 of the 
Sarbanes-Oxley Act, or the subsequent testing by our independent registered public accounting firm, may reveal 
deficiencies in our internal controls over financial reporting that are deemed to be material weaknesses or that may 
require prospective or retroactive changes to our consolidated financial statements or identify other areas for further 

59

attention or improvement. Inferior internal controls could also cause investors to lose confidence in our reported 
financial information, which could have a negative effect on the trading price of our common stock. 

We will continue to incur significant increased costs as a result of operating as a public company, and our 
management is required to devote substantial time to new compliance initiatives. 

As a public company, we incur significant legal, accounting and other expenses that we did not incur as a 
private company. For example, we are subject to the reporting requirements of the Securities Exchange Act of 1934, 
as amended, which require, among other things, that we file with the SEC annually, quarterly and current reports 
with respect to our business and financial condition. We have incurred and will continue to incur costs associated 
with the preparation and filing of these reports. In addition, the Sarbanes-Oxley Act, as well as rules subsequently 
implemented by the SEC, and the Nasdaq Global Market have imposed various other requirements on public 
companies. In July 2010, the Dodd-Frank Wall Street Reform and Consumer Protection Act, or the Dodd-Frank Act, 
was enacted. There are significant corporate governance and executive compensation related provisions in the Dodd-
Frank Act that require the SEC to adopt additional rules and regulations in these areas such as “say on pay” and 
proxy access. Stockholder activism, the current political environment and the current high level of government 
intervention and regulatory reform may lead to substantial new regulations and disclosure obligations, which may 
lead to additional compliance costs and impact (in ways we cannot currently anticipate) the manner in which we 
operate our business. Our management and other personnel devote a substantial amount of time to these compliance 
initiatives. Moreover, these rules and regulations have and will continue to increase our legal and financial 
compliance costs and will make some activities more time-consuming and costly. For example, these rules and 
regulations have made it more difficult and more expensive for us to obtain director and officer liability insurance 
and we may be required to incur substantial costs to maintain our current levels of such coverage. 

If the estimates we make, or the assumptions on which we rely, in preparing our consolidated financial 
statements prove inaccurate, our actual results may vary from those reflected in our projections and 
accruals. 

Our consolidated financial statements have been prepared in accordance with accounting principles generally 

accepted in the United States. The preparation of these consolidated financial statements requires us to make 
estimates and judgments that affect the reported amounts of our assets, liabilities, revenues and expenses, the 
amounts of charges accrued by us, and the related disclosure of contingent assets and liabilities. On an ongoing 
basis, our management evaluates our critical and other significant estimates and judgments, including among others, 
those associated with revenue recognition and the sales allowances and accruals, valuation of inventory, accrued 
research and development expenses, and stock-based compensation expense. We base our estimates on historical 
experience, known trends and events, contractual milestones, and various other factors that we believe to be 
reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or 
conditions. Any significant differences between our actual results and our estimates could materially affect our 
financial position, results of operations and cash flows.

Sales of a substantial number of shares of our common stock in the public market by our existing 
stockholders could cause our stock price to fall. 

Sales of a substantial number of shares of our common stock in the public market or the perception that these 
sales might occur, could depress the market price of our common stock and could impair our ability to raise capital 
through the sale of additional equity and/or convertible debt securities. We are unable to predict the effect that sales 
may have on the prevailing market price of our common stock. 

Future sales and issuances of our common stock or rights to purchase common stock, including pursuant 
to our equity incentive plans, could result in additional dilution of the percentage ownership of our 
stockholders and could cause our stock price to fall. 

We may need significant additional capital in the future to continue our planned operations. To the extent we 
raise additional capital by issuing equity securities; our stockholders may experience substantial dilution. We may 
sell common stock, convertible securities or other equity securities in one or more transactions at prices and in a 

60

manner we determine from time to time. If we sell common stock, convertible securities or other equity securities in 
more than one transaction, investors may be materially diluted by subsequent sales. These sales may also result in 
material dilution to our existing stockholders, and new investors could gain rights superior to our existing 
stockholders. 

Pursuant to our 2013 equity incentive plan, our management is authorized to grant stock options and other 
equity-based awards to our employees, directors and consultants. The number of shares available for future grant 
under the 2013 plan will automatically increase each year by 4% of all shares of our capital stock outstanding as of 
December 31 of the prior calendar year, subject to the ability of our board of directors to take action to reduce the 
size of the increase in any given year. Currently, we plan to register the increased number of shares available for 
issuance under the 2013 plan each year. If our board of directors elects to increase the number of shares available for 
future grant by the maximum amount each year, our stockholders may experience additional dilution, which could 
cause our stock price to fall. 

We are at risk of securities class action litigation. 

In the past, securities class action litigation has often been brought against a company following a decline in 

the market price of its securities. This risk is especially relevant for us because pharmaceutical companies have 
experienced significant stock price volatility in recent years. If we face such litigation, it could result in substantial 
costs and a diversion of management’s attention and resources, which could harm our business. 

Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited. 

Section 382 of the Internal Revenue Code of 1986, as amended, or Section 382, contains rules that limit the 

ability of a company that undergoes an ownership change to utilize its net operating losses, or NOLs, and tax credits 
existing as of the date of such ownership change. Under the rules, such an ownership change is generally any change 
in ownership of more than 50% of a company’s stock within a rolling three-year period. The rules generally operate 
by focusing on changes in ownership among stockholders considered by the rules as owning, directly or indirectly, 
5% or more of the stock of a company and any change in ownership arising from new issuances of stock by the 
company. We have experienced multiple ownership changes since our inception, however, based on the annual 
limitations calculated at each ownership change date, we expect that substantially all net operating loss 
carryforwards will be available to offset future taxable income.  Approximately $0.3 million of NOLs are expected 
to expire unused. Future ownership changes as defined by Section 382 may further limit the amount of NOL 
carryforwards that could be utilized annually to offset future taxable income.  

Under the currently enacted federal income tax law, federal NOLs incurred in 2018 and in future years may be 

carried forward indefinitely, but the deductibility of such federal NOLs is limited and could be subject to future 
limitations under Section 382.  

We do not intend to pay dividends on our common stock so any returns will be limited to the value of our 
stock. 

We have never declared or paid any cash dividend on our common stock. We currently anticipate that we will 
retain future earnings for the development, operation and expansion of our business and do not anticipate declaring 
or paying any cash dividends for the foreseeable future. Additionally, our Amended and Restated Credit and 
Security Agreement with Silicon Valley Bank, MidCap Financial Trust, and Flexpoint MCLS Holdings, LLC  
contains covenants that restrict our ability to pay dividends. Any return to stockholders will therefore be limited to 
the appreciation of their stock. 

61

Provisions in our amended and restated certificate of incorporation and amended and restated bylaws, as 
well as provisions of Delaware law, could make it more difficult for a third party to acquire us or increase 
the cost of acquiring us, even if doing so would benefit our stockholders, and may prevent or frustrate 
attempts by our stockholders to replace or remove our current management. 

Some provisions of our charter documents and Delaware law may have anti-takeover effects that could 
discourage an acquisition of us by others, even if an acquisition would be beneficial to our stockholders, and may 
prevent attempts by our stockholders to replace or remove our current management. These provisions include: 

•

•

•

•

•

•

authorizing the issuance of “blank check” preferred stock, the terms of which may be established and 
shares of which may be issued without stockholder approval; 

limiting the removal of directors by the stockholders; 

creating a staggered board of directors; 

prohibiting stockholder action by written consent, thereby requiring all stockholder actions to be taken 
at a meeting of our stockholders; 

eliminating the ability of stockholders to call a special meeting of stockholders; and 

establishing advance notice requirements for nominations for election to the board of directors or for 
proposing matters that can be acted upon at stockholder meetings. 

These provisions may frustrate or prevent any attempts by our stockholders to replace or remove our current 

management by making it more difficult for stockholders to replace members of our board of directors, which is 
responsible for appointing the members of our management. In addition, we are subject to Section 203 of the 
Delaware General Corporation Law, which generally prohibits a Delaware corporation from engaging in any of a 
broad range of business combinations with an interested stockholder of such corporation for a period of three years 
following the date on which the stockholder became an interested stockholder, unless such transactions are approved 
by our board of directors. This provision could have the effect of delaying or preventing a change of control, 
whether or not it is desired by or beneficial to our stockholders. Further, other provisions of Delaware law may also 
discourage, delay or prevent someone from acquiring us or merging with us. 

Item 1B. Unresolved Staff Comments

Not applicable.

Item 2.

Properties

Our offices are located in Burlington, Massachusetts at a leased facility used primarily for corporate functions. 

Due to increased headcount and future growth plans, during 2019, we amended the lease to expand the facility to 
approximately 42,000 square feet. The lease for the office space expires in April 2025.  In addition, we lease 
approximately 5,300 square feet of laboratory space in Woburn, Massachusetts under a lease that expires in 2022. 

Item 3. 

Legal Proceedings

We are not currently a party to any material legal proceedings.

Item 4.

Mine Safety Disclosures

Not applicable.

62

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 listed on the Nasdaq Global Market and trades under the symbol “FLXN”. 

Comparative Stock Performance Graph

The following performance graph and related information shall not be deemed “soliciting material” or to be 

“filed” with the SEC, nor shall such information be incorporated by reference into any future filing under the 
Securities Act or Exchange Act, except to the extent that we specifically incorporate it by reference into such filing.

The following graph shows a comparison from December 31, 2014 through December 31, 2019 of the 

cumulative total return for our common stock, the Russell 2000 Growth and Biotech index and the Nasdaq 
Composite Index. The graph assumes an initial investment of $100 on December 31, 2014. The comparisons in the 
graph are not intended to forecast or be indicative of possible future performance of our common stock. 

Holders of Record

As of February 28, 2020, there were approximately 15 stockholders of record of our common stock. Certain 
shares are held in “street” name and accordingly, the number of beneficial owners of such shares is not known or 
included in the foregoing number.

Securities Authorized for Issuance under Equity Compensation Plans

Information about our equity compensation plans is incorporated herein by reference to Item 12 of Part III of 

this Annual Report.

Recent Sales of Unregistered Securities

There were no unregistered sales of equity securities by us during the year ended December 31, 2019.

63

Issuer Repurchases of Equity Securities

None.

64

Item 6.

Selected Financial Data

The following selected financial data should be read together with “Item 7. Management’s Discussion and 

Analysis of Financial Condition and Results of Operations” and our consolidated financial statements and related 
notes included elsewhere in this Annual Report. The selected consolidated financial data in this section are not 
intended to replace our consolidated financial statements and the related notes. Our historical results are not 
necessarily indicative of the results that may be expected in the future.

We have derived the consolidated statements of operations data for the years ended December 31, 2019, 2018 

and 2017 and the consolidated balance sheet data as of December 31, 2019 and December 31, 2018 from our 
audited consolidated financial statements appearing elsewhere in this Annual Report.  The selected consolidated 
statement of operations data for the years ended December 31, 2016 and 2015 and the selected consolidated 
balance sheet data as of December 31, 2017, 2016 and 2015 are derived from our audited consolidated financial 
statements not included in this document.

Consolidated Statement of Operations Data:
Revenues:

Product revenue, net

Operating expenses:
Cost of sales
Research and development
Selling, general and administrative
Total operating expenses

Loss from operations
Other (expense) income
Interest income
Interest expense
Other income (expense)

Total other (expense) income

Net loss
Net loss per share attributable to common stockholders, 
basic and diluted(1)
Weighted average common shares outstanding, basic and 
diluted(1)

  $

  $

2019

Year Ended December 31,
2017
(in thousands, except per share amounts)

2016

2018

2015

  $

72,957    $

22,524    $

355    $

—    $

— 

9,960     
69,559     
129,709     
209,228     
(136,271)    

7,336     
53,079     
121,311     
181,726     
(159,202)    

4     
51,231     
78,801     
130,036     
(129,681)    

—     
41,314     
28,466     
69,780     
(69,780)    

3,212     
(17,066)    
352     
(13,502)    
(149,773)   $

4,567     
(15,712)    
688     
(10,457)    
(169,659)   $

3,718     
(11,268)    
(250)    
(7,800)    
(137,481)   $

1,521     
(1,748)    
(1,887)    
(2,114)    
(71,894)   $

— 
32,691 
13,372 
46,063 
(46,063)

1,246 
(571)
(927)
(252)
(46,315)

(3.93)   $

(4.49)   $

(4.16)   $

(2.84)   $

(2.15)

38,086     

37,751     

33,027     

25,297     

21,497  

Consolidated Balance Sheet Data:
Cash, cash equivalents, marketable securities, and long-
term investments
Working capital(2)
Total assets
Total debt(3)
Total stockholders’ (deficit) equity

2019

2018

As of December 31,
2017
       (in thousands)      

2016

2015

  $

136,660    $
159,456     
217,560     
193,589     
(20,108)    

258,784    $
248,425     
295,752     
158,486     
110,079     

423,916    $
367,418     
441,317     
160,010     
260,274     

210,329    $
191,853     
226,262     
30,533     
187,032     

118,604 
104,044 
127,139 
15,002 
103,986  

(1)

See Note 3 to our consolidated financial statements appearing elsewhere in this Annual Report for further 
details on the calculation of basic and diluted net loss per share attributable to common stockholders.

(2) We define working capital as current assets less current liabilities.
(3)

Total debt includes the current and long-term portion of our term loan, net of debt issuance costs, and the 2024 
Convertible Notes, net of the portion of the proceeds allocated to the conversion option and net of debt issuance 
costs.

65

 
 
 
 
 
   
   
   
   
 
 
 
 
   
      
      
      
      
  
   
      
      
      
      
  
   
      
      
      
      
  
   
   
   
   
   
   
      
      
      
      
  
   
   
   
   
   
 
 
 
 
 
   
   
   
   
 
   
      
      
  
   
   
   
   
Item 7.

Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis of financial condition and results of operations should be read in 

conjunction with “Item 6. Selected Financial Data” and our consolidated financial statements and related notes 
appearing elsewhere in this Annual Report. This discussion and analysis and other parts of this Annual Report 
contain forward-looking statements based upon current beliefs, plans and expectations that involve risks, 
uncertainties and assumptions, such as statements regarding our plans, objectives, expectations, intentions and 
projections. Our actual results and the timing of selected events could differ materially from those anticipated in 
these forward-looking statements as a result of several factors, including those set forth under “Item 1A. Risk 
Factors”. You should carefully read the “Risk Factors” section of this Annual Report to gain an understanding of 
the important factors that could cause actual results to differ materially from our forward-looking statements. 
Please also see the section entitled “Special Note Regarding Forward-Looking Statements.”

Overview

We are a biopharmaceutical company focused on the discovery, development and commercialization of novel, 
local therapies for the treatment of patients with musculoskeletal conditions, beginning with osteoarthritis, a type of 
degenerative arthritis referred to as OA. 

On October 6, 2017, the U.S. Food and Drug Administration, or FDA, approved our product, ZILRETTA, for 
marketing in the United States. ZILRETTA is the first and only extended-release, intra-articular, or IA (meaning in 
the joint), injection indicated for the management of OA related knee pain. ZILRETTA is a non-opioid therapy that 
employs our proprietary microsphere technology to provide extended pain relief. The pivotal Phase 3 trial, on which 
the approval of ZILRETTA was based, showed that ZILRETTA met the primary endpoint of pain reduction at Week 
12, with statistically significant pain relief extending through Week 16.  On December 26, 2019, we announced that 
the FDA approved a revised product label for ZILRETTA.  The new label removed language that previously stated 
ZILRETTA was “not intended for repeat administration” and replaced it with language stating that “the efficacy and 
safety of repeat administration of ZILRETTA have not been demonstrated.”

We have two pipeline programs focused on the local treatment of musculoskeletal conditions: FX201, which 

is an investigational IA gene therapy product candidate in clinical development for the treatment of OA, and FX301, 
a preclinical product candidate, which is being developed as a locally administered peripheral nerve block for 
management of post-operative pain.

We were incorporated in Delaware in November 2007, and to date we have devoted substantially all of our 
resources to developing our product candidates, including conducting clinical trials with our product candidates, 
preparing for and undertaking the commercialization of ZILRETTA, providing general and administrative support 
for these operations and protecting our intellectual property.  From our inception through December 31, 2019, we 
have raised approximately $796 million and funded our operations primarily through the sale of our common stock, 
convertible preferred stock, and convertible debt, as well as debt financing.  Until such time, if ever, that we can 
generate sufficient product revenue, we expect to finance our cash needs through a combination of equity offerings, 
debt financings, government or third-party funding, and licensing or collaboration arrangements.

We have incurred net losses in each year since our inception in 2007. Our net losses were $149.8 million, 
$169.7 million, and $137.5 million for the years ended December 31, 2019, 2018 and 2017, respectively. As of 
December 31, 2019, we had an accumulated deficit of $668.6 million. Substantially all of our net losses resulted 
from costs incurred in connection with our development programs and from selling, general and administrative 
expenses associated with our operations.

We anticipate that we will incur losses over the next few years. We expect that our operating expenses will 

continue to increase in connection with our ongoing activities, as we:

•

•

continue the development and commercialization of ZILRETTA, including our on-going and future 
clinical trials;

continue to scale-up manufacturing activities including the supply of clinical trial materials and 
commercial batches;

66

• maintain a sales and marketing infrastructure for the commercialization of ZILRETTA;

•

expand our development activities and advance additional product candidates;

• maintain, expand and protect our intellectual property portfolio; and

•

add operational, financial and management information systems and personnel, including personnel to 
support our product development and commercialization efforts and operations as a public company.

ZILRETTA is a physician-administered product, and therefore physicians are required to purchase and 

manage the inventory of ZILRETTA, prior to administering the product to patients. Physicians obtain 
reimbursement for ZILRETTA from the applicable third-party payer, such as Medicare or a health insurance 
company, only after it has been administered to patients.  This is called a “buy and bill” process.  Because 
physicians are at financial risk for the cost of a “buy and bill” product until they have been reimbursed, concerns 
about reimbursement can impact a physician’s decision to use the product.  CMS announced in November 2018, that 
ZILRETTA had been recommended for a product-specific J code (J3304), which took effect on January 1, 2019. We 
believe that the product-specific J code, J3304, provides prescribers with confidence in the reimbursement of 
ZILRETTA, as product-specific J codes are universally recognized by Medicare, as well as by commercial payers. 

Our promotional and marketing activities have increased since launch, as our field sales representatives, 

known as Musculoskeletal Business Managers, or MBMs, have expanded prescriber awareness and utilization of 
ZILRETTA. Furthermore, our Field Access Managers have been working with physician practices to navigate any 
reimbursement challenges and to support their awareness of the product-specific Healthcare Common Procedures 
Coding System (HCPCS) reimbursement code for ZILRETTA (J3304), which became effective on January 1, 2019.

We closely track and provide updates on several uptake metrics to provide perspective on the progress of the 

ZILRETTA launch. Since the launch in November 2017 through December 31, 2019: 

(cid:129)

(cid:129)
(cid:129)

3,488 of our approximately 4,972 target accounts had purchased ZILRETTA. This compares to the 
3,130 purchasing accounts over the period from launch through September 30, 2019
76% of purchasing accounts (2,642) had placed at least one reorder
794 accounts had made ZILRETTA purchases of more than 50 units; 1,028 accounts had purchased 
11-50 units; and 1,666 accounts had purchased between 1-10 units

(cid:129) Accounts purchasing more than 50 ZILRETTA units have been responsible for 81% of the total 

ZILRETTA units purchased (142,789 units)

On August 2, 2019, we entered into the Amended and Restated Credit and Security Agreement with Silicon 
Valley Bank as agent, MidCap Financial Trust, Flexpoint MCLS Holdings, LLC, and the other lenders from time to 
time party thereto (collectively, the Lenders), providing for a term loan of $40.0 million and a revolving credit 
facility of up to $20.0 million, both of which mature on January 1, 2024. We concurrently drew down the $40.0 
million term loan and used $7.7 million of the proceeds to repay the remaining amount owed on our existing term 
loan with Silicon Valley Bank and MidCap Funding XIII Trust.  The revolving credit facility became available to us 
beginning January 1, 2020, and in February 2020, we drew down the $20.0 million available.  The Amended and 
Restated Credit and Security Agreement also contains a minimum revenue covenant that will be in effect at any time 
our liquidity (defined as cash and cash equivalents held with Silicon Valley Bank) is below $80.0 million.  If the 
revenue covenant becomes applicable and we fail to comply with it, the amounts due under the Amended and 
Restated Credit and Security Agreement could be declared immediately due and payable.  The revenue covenant is 
set annually and is based on the greater of a conservative percentage of that year’s approved forecast and modest 
growth over the trailing twelve months of actual sales.

We may need to raise additional capital for the commercialization of ZILRETTA and completing clinical 
development of any of our other product candidates. Until such time that we can generate sufficient product revenue, 
we expect to finance our cash needs through a combination of equity offerings, debt financings, including 
convertible debt financings, government or other third-party funding and collaborations, and licensing arrangements. 
However, we may be unable to raise additional funds or enter into such arrangements when needed on favorable 
terms, or at all, which would have a negative impact on our financial condition and could force us to delay, limit, 
reduce or terminate our development programs or commercialization efforts or grant to others, rights to develop or 

67

market product candidates that we would otherwise prefer to develop and market ourselves. Failure to receive 
additional funding could cause us to cease operations, in part or in full. 

Financial Overview

Revenue

Net product sales consist of sales of ZILRETTA, which was approved by the FDA on October 6, 2017 and 

launched in the United States shortly thereafter.  We had not generated any revenue prior to the launch of 
ZILRETTA. 

Cost of Sales

Cost of sales consists of third-party manufacturing costs, freight and indirect overhead costs associated with 
sales of ZILRETTA.  Cost of sales also includes period costs related to certain inventory manufacturing services, 
inventory adjustment charges, and unabsorbed manufacturing and overhead costs, as well as any write-offs of 
inventory that fails to meet specification or is otherwise no longer suitable for commercial manufacture. Based on 
our policy to expense costs associated with the manufacture of our products prior to regulatory approval, the vast 
majority of the costs to manufacture ZILRETTA that was recognized as revenue during the year ended 
December 31, 2017 were expensed prior to the October 2017 FDA approval and, therefore, are not included in cost 
of sales during the period.  In addition, the majority of product sold during the year ended December 31, 2018 was 
manufactured and previously charged to research and development expense prior to FDA approval of ZILRETTA 
and therefore is not included in cost of sales during the period. As of December 31, 2018, all of the finished goods 
inventory that was previously expensed had been sold to customers.

Research and Development Expenses

Our research and development activities include: preclinical studies, clinical trials, and chemistry, 
manufacturing, and controls, or CMC activities. Our research and development expenses consist primarily of:

•

•

•

•

•

•

expenses incurred under agreements with consultants, contract research organizations, or CROs, and 
investigative sites that conduct our preclinical studies and clinical trials;

costs of acquiring, developing and manufacturing clinical trial materials;

personnel costs, including salaries, benefits, stock-based compensation and travel expenses for 
employees engaged in scientific research and development functions;

costs related to compliance with certain regulatory requirements;

expenses related to the in-license of certain technologies; and

allocated expenses for rent and maintenance of facilities, insurance and other general overhead.

We expense research and development costs as incurred. Our direct research and development expenses 

consist primarily of external-based costs, such as fees paid to investigators, consultants, investigative sites, CROs 
and companies that manufacture our clinical trial materials and potential future commercial supplies, and are tracked 
on a program-by-program basis. We do not allocate personnel costs, facilities or other indirect expenses to specific 
research and development programs. These indirect expenses are included within the amounts designated as 
“Personnel and other costs” in the Results of Operations section below.  Inventory acquired prior to receipt of the 
marketing approval of ZILRETTA was recorded as research and development expense as incurred.  We began 
capitalizing the costs associated with the production of ZILRETTA after the FDA approval on October 6, 2017.

Our research and development expenses are expected to increase in the foreseeable future. Specifically, our 

costs will increase as we conduct additional clinical trials for ZILRETTA and conduct further developmental 
activities for our pipeline programs. 

We cannot determine with certainty the duration of and completion costs associated with ongoing and future 

clinical trials or the associated regulatory approval process, post-marketing development of ZILRETTA or 

68

development of any product candidates in our pipeline.  The duration, costs and timing associated with the further 
development of ZILRETTA or the development of other product candidates will depend on a variety of factors, 
including uncertainties associated with the results of our clinical trials. As a result of these uncertainties, we are 
currently unable to estimate with any precision our future research and development expenses for expanded 
indications for ZILRETTA or any product candidates in our pipeline, or when we may generate sufficient revenue to 
achieve a positive cash flow position.

Selling, General and Administrative Expenses

Selling, general and administrative expenses consist primarily of personnel costs, including salaries, related 

benefits, travel expenses and stock-based compensation of our executive, finance, business development, 
commercial, information technology, legal and human resources functions. Other selling, general and administrative 
expenses include an allocation of facility-related costs, patent filing expenses, and professional fees for legal, 
consulting, auditing and tax services.

We anticipate that our selling, general and administrative expenses will increase in the future as we continue 
to build our corporate and commercial infrastructure to support the continued development and commercialization 
of ZILRETTA or any other product candidates. In particular, we expect to incur ongoing increases in selling, 
general and administrative expenses related to the commercialization of ZILRETTA, including external marketing 
expenses and the operation of our field sales force. Additionally, we anticipate increased expenses related to the 
audit, legal and compliance, regulatory, investor relations and tax-related services associated with maintaining 
compliance with the SEC and Nasdaq requirements and healthcare laws and compliance requirements, director and 
officer insurance premiums and other costs associated with operating as a publicly-traded company.

Other Income (Expense)

Interest income. Interest income consists of interest earned on our cash and cash equivalents balances and our 

marketable securities. The primary objective of our investment policy is capital preservation.

Interest expense. Interest expense consists of contractual interest on our 2024 Convertible Notes, which 
accrue interest at a rate of 3.375% per annum, payable semi-annually, our former term loan facility, which accrued 
interest at a fixed rate of 6.25% per annum and our new term loan facility, which accrues interest at a floating 
interest rate equal to the greater of the Prime Rate (as reported in the Wall Street Journal) plus 1.50%, or 6.50% per 
annum. Also included in interest expense is the amortization of the final payment on the term loan and the debt 
discount related to the convertible notes, which is being amortized to interest expense using the effective interest 
method over the expected life of the debt. 

Foreign currency gain (loss). We maintain a bank account denominated in British Pounds.  All foreign 
currency payables and cash balances are measured at the applicable exchange rate at the end of the reporting period.  
All associated gains and losses from foreign currency transactions are reflected in the consolidated statements of 
operations, within other income and expense.

Other income (expense). Other income (expense) consists of the net accretion of premiums and discounts 
related to our marketable securities, and our realized gains (losses) on redemptions of our marketable securities. We 
will continue to record either income or expense related to accretion of discounts or amortization of premiums on 
marketable securities for as long as we hold these investments. Also included in other income (expense) is the 
amortization of debt issuance costs on our term loan facility and the 2024 Convertible Notes, which are being 
amortized over the respective terms of the loans.

Income Taxes

As of December 31, 2019, we had $404.3 million and $300.0 million of federal and state net operating loss 
carryforwards, respectively, and $8.6 million and $4.3 million of federal and state research and development tax 
credit carryforwards, respectively, available to offset our future taxable income, if any. These federal net operating 
loss carryforwards and research and development tax credit carryforwards expire at various dates beginning in 2029, 

69

if not utilized and are subject to review and possible adjustment by the Internal Revenue Service. Approximately 
$214.8 million of the federal net operating losses have an indefinite carryforward. The state net operating loss 
carryforwards and research and development tax credit carryforwards expire at various dates beginning in 2030 and 
2025, respectively, if not utilized and are subject to review and possible adjustment by the state tax authorities. At 
December 31, 2019, a full valuation allowance was recorded against our net operating loss carryforwards and our 
research and development tax credit carryforwards.

If we experience a greater than 50% aggregate change in ownership of certain stockholders over a three-year 

period, utilization of our then-existing net operating loss carryforwards and research and development tax credit 
carryforwards will be subject to an annual limitation.

Critical Accounting Policies and Significant Judgments and Estimates

Our management’s discussion and analysis of our financial condition and results of operations is based on our 

financial statements, which we have prepared in accordance with generally accepted accounting principles in the 
United States, or GAAP. The preparation of our financial statements requires us to make estimates and assumptions 
that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the 
date of our financial statements, and the reported revenue and expenses during the reported periods. We evaluate 
these estimates and judgments, including those described below, on an ongoing basis. We base our estimates on 
historical experience, known trends and events, contractual milestones and various other factors that we believe are 
reasonable under the circumstances, the results of which form the basis for making judgments about the carrying 
value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these 
estimates under different assumptions or conditions.

While our significant accounting policies are more fully described in Note 3 to our consolidated financial 

statements appearing elsewhere in this Form 10-K, we believe that the estimates and assumptions involved in the 
following accounting policies may have the greatest potential impact on our financial statements and, therefore, 
consider these to be critical for fully understanding and evaluating our financial condition and results of operations.

Revenue Recognition

On October 6, 2017, U.S. Food and Drug Administration, of FDA, approved ZILRETTA. We entered into a 

limited number of arrangements with specialty distributors and a specialty pharmacy in the U.S. to distribute 
ZILRETTA. We recognize revenue in accordance with Accounting Standards Codification (“ASC”) Topic 606 -
 Revenue from Contracts with Customers (“Topic 606”). Under Topic 606, an entity recognizes revenue when its 
customer obtains control of promised goods or services, in an amount that reflects the consideration which the entity 
expects to be entitled to in exchange for those goods or services.

To determine revenue recognition for arrangements that an entity determines are within the scope of Topic 

606, the entity performs the following five steps: (i) identify the contract(s) with a customer, (ii) identify the 
performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the 
performance obligations in the contract, and (v) recognize revenue when (or as) the entity satisfies a performance 
obligation. We only apply the five-step model to arrangements that meet the definition of a contract with a customer 
under Topic 606, including when it is probable that the entity will collect the consideration it is entitled to in 
exchange for the goods or services it transfers to the customer. At contract inception, once the contract is determined 
to be within the scope of Topic 606, we assess the goods or services promised within each contract, determine those 
that are performance obligations, and assess whether each promised good or service is distinct. We then recognize as 
revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) 
the performance obligation is satisfied. For a complete discussion of accounting for product revenue, see Product 
Revenue, Net (below).

70

Product Revenue, Net— We primarily sell ZILRETTA to specialty distributors and a specialty pharmacy,  
who then subsequently resell ZILRETTA to physicians, clinics and certain medical centers or hospitals. We also 
contract directly with healthcare providers and intermediaries such as Group Purchasing Organizations (“GPOs”). In 
addition, we enter into arrangements with government payers that provide for government mandated rebates and 
chargebacks with respect to the purchase of ZILRETTA. 

We recognize revenue on product sales when the customer obtains control of ZILRETTA, which occurs at a 

point in time (upon delivery to the customer). We have determined that the delivery of ZILRETTA to our customers 
constitutes a single performance obligation.  There are no other promises to deliver goods or services beyond what is 
specified in each accepted customer order.  Management has assessed the existence of a significant financing 
component in the agreements with our customers.  The trade payment terms with our customers do not exceed one 
year and therefore management has elected to apply the practical expedient and no amount of consideration has been 
allocated as a financing component.  Product revenues are recorded net of applicable reserves for variable 
consideration, including discounts and allowances.

Transaction Price, including Variable Consideration— Revenues from product sales are recorded at the net 

sales price (transaction price), which includes estimates of variable consideration for which reserves are established. 
Components of variable consideration include trade discounts and allowances, product returns, government 
chargebacks, discounts and rebates, and other incentives, such as voluntary patient assistance, and other fee for 
service amounts that are detailed within our contracts with our customers relating to the sale of ZILRETTA. These 
reserves, as detailed below, are based on the amounts earned, or to be claimed on the related sales, and are classified 
as reductions of accounts receivable (if the amount is payable to the customer) or a current liability (if the amount is 
payable to a party other than a customer). These estimates take into consideration a range of possible outcomes 
which are probability-weighted in accordance with the expected value method in Topic 606 for relevant factors such 
as current contractual and statutory requirements, specific known market events and trends, industry data, and 
forecasted customer buying and payment patterns. Overall, these reserves reflect our best estimates of the amount of 
consideration to which we are entitled based on the terms of the respective underlying contracts.

The amount of variable consideration which is included in the transaction price may be constrained and is 
included in the net sales price only to the extent that it is probable that a significant reversal in the amount of the 
cumulative revenue recognized under the contract will not occur in a future period. Actual amounts of consideration 
ultimately received may differ from our estimates. If actual results in the future vary from our original estimates, we 
will adjust these estimates, which would affect net product revenue and earnings in the period such variances 
become known.

Service Fees and Allowances—We compensate our customers and GPOs for sales order management, data, 

and distribution services. However, we have determined such services received to date are not distinct from our sale 
of products to the customer and, therefore, these payments have been recorded as a reduction of revenue within the 
statement of operations and comprehensive loss through December 31, 2019, as well as a reduction to trade 
receivables, net on the consolidated balance sheets.

Product Returns— Consistent with industry practice, we generally offer our customers a limited right of 
return for product that has been purchased from us based on the product’s expiration date.  We estimate the amount 
of our product sales that may be returned by our customers and record this estimate as a reduction of revenue in the 
period the related product revenue is recognized, as well as within accrued expenses and other current liabilities, net 
on the consolidated balance sheets. We currently estimate product return liabilities using available industry data and 
our own sales information, including our visibility into the inventory remaining in the distribution channel. We have 
received an immaterial amount of returns to date and we believe that returns of ZILRETTA will be minimal.

Chargebacks— Chargebacks for fees and discounts to qualified government healthcare providers represent the 

estimated obligations resulting from contractual commitments to sell products to qualified VA hospitals and 340b 
entities at prices lower than the list prices charged to customers who directly purchase the product from us. The 
340b Drug Discount Program is a US federal government program created in 1992 that requires drug manufacturers 

71

to provide outpatient drugs to eligible health care organizations and covered entities at significantly reduced prices.  
Customers charge us for the difference between what they pay for the product and the statutory selling price to the 
qualified government entity. These reserves are established in the same period that the related revenue is recognized, 
resulting in a reduction of product revenue and trade receivables, net. Chargeback amounts are generally determined 
at the time of resale to the qualified government healthcare provider by customers, and we generally issue credits for 
such amounts within a few weeks of the customer’s notification to us of the resale. Reserves for chargebacks consist 
of credits that we expect to issue for units that remain in the distribution channel inventories at each reporting 
period-end that we expect will be sold to qualified healthcare providers, and chargebacks that customers have 
claimed, but for which we have not yet issued a credit. 

Government Rebates— We are subject to discount obligations under state Medicaid programs and Medicare. 
These reserves are recorded in the same period the related revenue is recognized, resulting in a reduction of product 
revenue and the establishment of a current liability which is included in accrued expenses and other current 
liabilities on the consolidated balance sheets. For Medicare, we also estimate the number of patients in the 
prescription drug coverage gap for whom we will owe an additional liability under the Medicare Part D program. 
We anticipate our exposure to utilization from the Medicare Part D coverage gap discount program to be immaterial.  
For Medicaid programs, we estimate the portion of sales attributed to Medicaid patients and record a liability for the 
rebates to be paid to the respective state Medicaid programs.  Our liability for these rebates consists of invoices 
received for claims from prior quarters that have not been paid or for which an invoice has not yet been received, 
estimates of claims for the current quarter, and estimated future claims that will be made for product that has been 
recognized as revenue, but which remains in the distribution channel inventories at the end of each reporting period. 

Purchaser/Provider Discounts and Rebates—Beginning in the third quarter of 2019, we began offering 

rebates to eligible purchasers and healthcare providers that are variable based on volume of product purchased. 
Rebates are based on actual purchase levels during the rebate purchase period. We estimate these rebates and record 
such estimates in the same period the related revenue is recognized, resulting in a reduction of product revenue and 
the establishment of a current liability.

Other Incentives— Other incentives which we offer include voluntary patient assistance programs, such as the 

co-pay assistance program, which are intended to provide financial assistance to qualified commercially-insured 
patients with prescription drug co-payments required by payers. The calculation of the accrual for co-pay assistance 
is based on an estimate of claims and the cost per claim that we expect to receive associated with product that has 
been recognized as revenue but remains in the distribution channel inventories at the end of each reporting period. 
The adjustments are recorded in the same period the related revenue is recognized, resulting in a reduction of 
product revenue and the establishment of a current liability which is included as a component of accrued expenses 
and other current liabilities on the consolidated balance sheets.

To date, our only source of product revenue has been from the U.S. sales of ZILRETTA, which we began 

shipping to customers in October 2017. 

72

The following table summarizes activity in each of the product revenue allowance and reserve categories for 

the years ended December 31, 2019, 2018 and 2017:

 (In thousands)
Balance as of January 1, 2017
Provision related to sales in the current year
Credit or payments made during the period
Balance as of December 31, 2017
Provision related to sales in the current year
Credit or payments made during the period
Balance as of December 31, 2018
Provision related to sales in the current year
Credit or payments made during the period
Adjustments related to prior period sales
Balance as of December 31, 2019

Service Fees, 
Allowances and 
Chargebacks

Government 
Rebates and Other 
Incentives

Product 
Returns

Purchaser/Provider 
Discounts and 
Rebates

    Total

 $

 $

—   $
100    
(40)  
60    
1,688    
(1,147)   
601    
5,527    
(4,281)   
—    
1,847   $

—    $
15     
—   
15     
502     
(26)    
491     
261     
(375)    
(129)  
248    $

—   $
2   
—   
2   
124   
(1)  
125   
334    
(57)   
—   
402   $

—   $
—    
—    
—    
—    
—    
—    
2,685    
(1,029)   
—    
1,656   $

— 
117 
(40)
77 
2,314 
(1,174)
1,217 
8,807 
(5,742)
(129)
4,153  

Research and Development Expenses

As part of the process of preparing our financial statements, we are required to estimate our accrued expenses. 

This process involves reviewing open contracts and purchase orders, communicating with applicable internal and 
vendor personnel to identify services that have been performed on our behalf and estimating the level of service 
performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified 
of the actual cost. The majority of our service providers invoice us monthly in arrears for services performed or 
when contractual milestones are met.  We make estimates of our accrued expenses as of each balance sheet date in 
our financial statements based on facts and circumstances known to us at that time.  We periodically confirm the 
accuracy of our estimates with the service providers and make adjustments if necessary.  Examples of estimated 
accrued research and development expenses include fees paid to:

(cid:129)
(cid:129)
(cid:129)
(cid:129)

CROs in connection with clinical studies;
investigative sites in connection with clinical studies;
vendors related to product manufacturing, development and distribution of clinical supplies; and
vendors in connection with preclinical development activities.

We record expenses related to clinical studies and manufacturing development activities based on our 

estimates of the services received and efforts expended pursuant to contracts with multiple CROs and manufacturing 
vendors that conduct and manage these activities on our behalf.  The financial terms of these agreements are subject 
to negotiation, vary from contract to contract, and may result in uneven payment flows.  

We make estimates of our accrued expenses as of each balance sheet date in our financial statements based 

on facts and circumstances known to us. If timelines or contracts are modified based upon changes in the clinical 
trial protocol or scope of work to be performed, we modify our estimates of accrued expenses accordingly on a 
prospective basis. If we do not identify costs that we have begun to incur, or if we underestimate or overestimate the 
level of services performed or the costs of these services, our actual expenses could differ from our estimates. To 
date, we have not adjusted our estimates at any particular balance sheet date in any material amount.

73

 
   
   
   
 
  
  
  
  
  
  
  
  
 
RESULTS OF OPERATIONS

Year Ended December 31, 2019 Compared to Year Ended December 31, 2018

The following table summarizes our results of operations for the years ended December 31, 2019 and 2018:

(In thousands)
Revenues

Product revenue, net

Operating expenses
Cost of sales
Research and development
Selling, general and administrative
Total operating expenses

Loss from operations
Other (expense) income
Interest income
Interest expense
Other income (expense)

Total other (expense) income

Net loss

Product Revenue

2019

Year Ended December 31,
$ Change

2018

  % Change  

  $

72,957 

  $

22,524 

  $

50,433 

223.9%

9,960 
69,559 
129,709 
209,228 
(136,271)    

3,212 
(17,066)    
352 
(13,502)    
(149,773)   $

7,336 
53,079 
121,311 
181,726 
(159,202)    

4,567 
(15,712)    
688 
(10,457)    
(169,659)   $

  $

2,624 
16,480 
8,398 
27,502 
22,931 

(1,355)    
(1,354)    
(336)    
(3,045)    
19,886 

35.8%
31.0%
6.9%
15.1%
(14.4)%

(29.7)%
8.6%
48.8%
29.1%
(11.7)%

We began commercially selling ZILRETTA within the United States in October 2017, following FDA 

approval on October 6, 2017.  For the years ended December 31, 2019 and 2018, we recorded $73.0 million and 
$22.5 million, respectively, of net product revenue.  For further discussion regarding our revenue recognition policy, 
see Note 3 to our consolidated financial statements appearing elsewhere in this Annual Report.

Cost of Sales

Cost of sales was $10.0 million and $7.3 million for the years ended December 31, 2019 and 2018, 
respectively. For the years ended December 31, 2019 and 2018, cost of sales consisted of $8.4 million and $2.3 
million, respectively, related to the actual cost of units sold and $0.9 million and $5.0 million, respectively, as a 
result of unabsorbed manufacturing and overhead costs related to the operation of the facility at Patheon. Cost of 
sales for the year ended December 31, 2019 also included $0.7 million of period costs and other adjustments. Based 
on our policy to expense costs associated with the manufacture of our products prior to regulatory approval, the vast 
majority of the costs to manufacture ZILRETTA that were recognized as revenue during the year ended 
December 31, 2018 were expensed prior to the October 2017 FDA approval and, therefore, are not included in cost 
of sales during the period. As of December 31, 2018, all of the finished goods inventory that was previously 
expensed had been sold to customers.

Research and Development Expenses

(In thousands)
Direct research and development expenses by program:

ZILRETTA
Portfolio expansion
Other

Total direct research and development expenses
Personnel and other costs
Total research and development expenses

2019

Year Ended December 31,
$ Change

2018

  % Change  

  $

  $

22,847 
11,384 
3,120 
37,351 
32,208 
69,559 

  $

  $

16,244 
6,713 
2,345 
25,302 
27,777 
53,079 

  $

  $

6,603 
4,671 
775 
12,049 
4,431 
16,480 

40.6%
69.6%
33.0%
47.6%
16.0%
31.0%

74

 
 
 
 
 
 
 
 
 
   
  
   
  
   
  
   
  
   
   
  
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
   
  
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
Research and development expenses were $69.6 million and $53.1 million for the years ended December 31, 

2019 and 2018, respectively. The increase in research and development expenses year-over-year of $16.5 million 
was primarily due to an increase of $4.4 million in salary and other employee-related costs for additional headcount 
and stock-based compensation expense, an increase of $5.5 million in preclinical expenses related to our portfolio 
expansion and other programs costs, primarily related to the completion of toxicology studies and ongoing 
manufacturing of GMP batches to start clinical testing for our gene therapy product candidate, FX201, as well as the 
upfront payment of $3.0 million to Xenon Pharmaceuticals for the acquisition of the global rights to funapide, and 
an increase of $6.6 million in development expenses for ZILRETTA, including CMC and clinical trial costs.

Selling, General and Administrative Expenses

Selling, general and administrative expenses were $129.7 million and $121.3 million for the years ended 
December 31, 2019 and 2018, respectively. Selling expenses were $96.3 million and $87.3 million for the years 
ended December 31, 2019 and 2018. The year-over-year increase in selling expenses of $9.0 million was primarily 
due to salary and other employee-related costs and external costs related to marketing and reimbursement support 
activities. General and administrative expenses were $33.4 million and $34.0 million for the years ended 
December 31, 2019 and 2018, respectively, which represents a decrease of $0.6 million year over year.

Other Income (Expense)

Interest income was $3.2 million and $4.6 million for the years ended December 31, 2019 and 2018, 
respectively. The decrease in interest income was primarily due to a decrease in the average investment balance. 

Interest expense was $17.1 million and $15.7 million for the years ended December 31, 2019 and 2018, 
respectively. The increase in interest expense is primarily due to the write-off of unamortized costs associated with 
the 2015 term loan facility which was extinguished in the third quarter of 2019 and the establishment of the new 
term loan facility in August 2019 related to the increased outstanding balance.

We recorded other income of $0.4 million for the year ended December 31, 2019, compared to other income 
of $0.7 million for the year ended December 31, 2018.  The decrease in other income, was primarily due to the debt 
issuance costs related to the term loan facility that was extinguished in the third quarter of 2019 and an increase in 
losses related to foreign currency exchange rates, partially offset by an increase in accretion related to our 
investments

Year Ended December 31, 2018 Compared to Year Ended December 31, 2017

The following table summarizes our results of operations for the years ended December 31, 2018 and 2017: 

(In thousands)
Revenues

Product revenues, net

Operating expenses
Cost of sales
Research and development
Selling, general and administrative
Total operating expenses

Loss from operations
Other (expense) income
Interest income
Interest expense
Other income (expense)

Total other (expense) income

Net loss

2018

Year Ended December 31,
$ Change

2017

  % Change  

  $

22,524 

  $

355 

  $

22,169 

NM 

7,336 
53,079 
121,311 
181,726 
(159,202)    

4,567 
(15,712)    
688 
(10,457)    
(169,659)   $

4 
51,231 
78,801 
130,036 
(129,681)    

3,718 
(11,268)    
(250)    
(7,800)    
(137,481)   $

7,332 
1,848 
42,510 
51,690 
(29,521)    

849 
(4,444)    
938 
(2,657)    
(32,178)    

NM 
3.6%
53.9%
39.8%
22.8%

22.8%
39.4%
(375.2)%
34.1%
23.4%

  $

75

 
 
 
 
 
 
 
 
 
   
  
   
  
   
  
   
  
 
   
  
   
  
   
  
   
  
   
   
   
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
Product Revenue

We began commercially selling ZILRETTA within the United States in October 2017, following FDA 

approval on October 6, 2017.  For the years ended December 31, 2018 and 2017, we recorded $22.5 million and 
$0.4 million, respectfully, of net product revenue. For further discussion regarding our revenue recognition policy, 
see Note 3 to our consolidated financial statements appearing elsewhere in this Form 10-K.

Cost of Sales

Cost of sales was approximately $7.3 million and $4 thousand for the years ended December 31, 2018 and 
2017, of which $5.0 million relates to unabsorbed manufacturing and overhead related to the operation of the facility 
at Patheon for the year ended December 31, 2018.  Based on our policy to expense costs associated with the 
manufacture of our products prior to regulatory approval, the vast majority of the costs to manufacture ZILRETTA 
that was recognized as revenue during the year ended December 31, 2018 were expensed prior to the October 2017 
FDA approval of ZILRETTA and, therefore, are not included in cost of sales during the period. We expect cost of 
sales to increase in relation to product revenues as we deplete these inventories.

Research and Development Expenses

(In thousands)
Direct research and development expenses by program:

ZILRETTA
Portfolio expansion
Other

Total direct research and development expenses
Personnel and other costs
Total research and development expenses

2018

Year Ended December 31,
$ Change

2017

  % Change  

  $

  $

16,244 
6,713 
2,345 
25,302 
27,777 
53,079 

  $

  $

20,040 
5,043 
1,080 
26,163 
25,068 
51,231 

  $

  $

(3,796)    
1,670 
1,265 
(861)    
2,709 
1,848 

(18.9)%
33.1%
117.1%
(3.3)%
10.8%
3.6%

Research and development expenses were $53.1 million and $51.2 million for the years ended December 31, 
2018 and 2017, respectively. The increase in research and development expenses year over year of $1.8 million was 
primarily due to an increase of $2.7 million in salary and other employee-related costs for additional headcount and 
stock-based compensation expense, as well as a $2.9 million increase in expenses related to our pipeline program 
and other program costs, offset by a decrease of $3.8 million in ZILRETTA clinical development expenses primarily 
due to the marketing approval of ZILRETTA in the fourth quarter of 2017 and timing of clinical trial costs. 

Selling, General and Administrative Expenses

Selling, general and administrative expenses were $121.3 million and $78.8 million for the years ended 
December 31, 2018 and 2017, respectively, for a year-over-year increase of $42.5 million. Selling expenses were 
$87.3 million and $45.9 million for the years ended December 31, 2018 and 2017, respectively. The increase in 
selling expenses year over year of $41.4 million was primarily due to salary and related costs associated with 
additional headcount and costs related to the creation of commercial marketing and sales capabilities. General and 
administrative expenses were $34.0 million and $32.9 million for the years ended December 31, 2018 and 2017, 
respectively, which represents an increase of $1.1 million year over year.

Other Income (Expense)

Interest income was $4.6 million and $3.7 million for the years ended December 31, 2018 and 2017, 
respectively. The increase in interest income was primarily due to increasing interest rates throughout 2018.

Interest expense was $15.7 million and $11.3 million for the years ended December 31, 2018 and 2017, 
respectively. The increase in interest expense was primarily due to interest incurred on the 2024 Convertible Notes.  

76

 
 
 
 
 
 
 
 
 
   
  
   
  
   
  
   
  
   
  
   
   
   
  
   
   
   
   
   
   
   
   
   
   
We recorded other income of $0.7 million for the year ended December 31, 2018, compared to other expense 
of $0.3 million for the year ended December 31, 2017. Other income, net increased primarily due to the accretion of 
discounts on marketable securities; whereas in 2017 more securities were purchased at a premium. 

Liquidity and Capital Resources

During the year ended December 31, 2019, we generated $73.0 million in net product revenue. We have 
incurred significant net losses in each year since our inception in 2007, including net losses of $149.8 million, 
$169.7 million, and $137.5 million for fiscal years 2019, 2018, and 2017, respectively. As of December 31, 2019, 
we had an accumulated deficit of $668.6 million. We anticipate that we will continue to incur losses over the next 
few years. We expect that our research and development and selling, general and administrative expenses will 
continue to increase and, as a result, we may need additional capital to fund our operations, which we may seek to 
obtain through one or more equity offerings, debt and convertible debt financings, government or other third-party 
funding, and licensing or collaboration arrangements.

Since our inception through December 31, 2019, we have funded our operations primarily through the sale of 
our common stock and convertible preferred stock and convertible debt, and through venture debt financing. From 
our inception through December 31, 2019, we had raised approximately $796.0 million from such transactions, 
including amounts from our initial and follow-on public offerings during 2014, 2016 and 2017 as well as our term 
loan facility entered into in 2015 and 2019 and our 2024 Convertible Notes issuance in 2017. As of December 31, 
2019, we had cash, cash equivalents and marketable securities of $136.7 million.  Based on our current operating 
plan we anticipate that our existing cash, cash equivalents and marketable securities will fund our operations and 
debt obligations for at least the next twelve months from the date of issuance of the financial statements included in 
this report. Cash in excess of immediate requirements is invested in accordance with our investment policy, 
primarily with a view to capital preservation.

In connection with the Term Loan described in Note 10 of our accompanying consolidated financial 
statements, if our future cash balance decreases below $80 million, we will need to remain in compliance with a 
minimum monthly net revenue covenant (determined in accordance with U.S. GAAP), measured on a trailing twelve 
month basis. The lender also has the ability to call debt based on a material adverse change clause, which is 
subjectively defined. If we are not in compliance with the monthly net revenue covenants or the subjective 
acceleration clauses are triggered under the agreement, then the lender may call our debt obligation resulting in the 
us immediately needing additional funds. As of December 31, 2019, we are in compliance with all covenants.

The following table shows a summary of our cash flows for each of the years ended December 31, 2019, 2018 

and 2017:

(In thousands)
Cash flows used in operating activities
Cash flows provided by (used in) investing activities
Cash flows provided by (used in) financing activities

Net (decrease) increase in cash and cash
   equivalents

  $

Year Ended December 31,
2018
(160,419)  $
125,584 

2019
(148,758)  $
114,764 
29,018 

(6,325)   

2017
(107,831)
(118,672)
323,497 

  $

(4,976)  $

(41,160)  $

96,994  

Net Cash Used in Operating Activities

Operating activities used $148.8 million of cash in the year ended December 31, 2019. Cash used in operating 
activities resulted primarily from our net loss of $149.8 million and changes in our operating assets and liabilities of 
$25.6 million, partially offset by non-cash charges of $26.6 million. Changes in our operating assets and liabilities 
consisted primarily of a $24.0 million increase in accounts receivable, a $7.7 million increase in inventory, partially 
offset by a $0.1 million decrease in prepaid expenses and other current assets, an increase of $7.0 million in 
accounts payable and accrued expenses and a $1.0 million decrease in lease liabilities and other long-term liabilities. 
Non-cash charges consisted primarily of $15.9 million of stock-based compensation expense, $8.7 million related to 
the amortization of the debt discount and debt issuance costs related to the 2024 Convertible Notes, $1.3 million 

77

 
 
 
 
   
   
 
   
  
  
   
  
related to the amortization of right-of-use assets -$1.1 million of depreciation and $0.9 million related to non-cash 
interest expense and loss from debt extinguishment related to our 2015 term loan, partially offset by $1.3 of net 
accretion of discounts related to our investments.

Operating activities used $160.4 million of cash in the year ended December 31, 2018. Cash used in operating 

activities resulted primarily from our net loss of $169.7 million offset by changes in our operating assets and 
liabilities of $14.2 million and non-cash charges of $23.4 million. Changes in our operating assets and liabilities 
consisted primarily of a $12.7 million increase in accounts receivable, a $5.2 million increase in inventory, and a 
$2.1 million increase in prepaid expenses and other current assets, partially offset by an increase of $5.8 million in 
accounts payable and accrued expenses. Non-cash charges consisted primarily of $15.5 million of stock-based 
compensation expense, $7.8 million related to the amortization of the debt discount and debt issuance costs related 
to the 2024 Convertible Notes, and $1.7 million of depreciation, partially offset by $1.3 million of net accretion of 
discounts related to our investments.

Operating activities used $107.8 million of cash in the year ended December 31, 2017. The cash used in 
operating activities in the year ended December 31, 2017 resulted primarily from our 2017 net loss of $137.5 million 
offset by changes in our operating assets and liabilities of $11.8 million and non-cash charges of $17.9 million. 
Changes in our operating assets and liabilities consisted primarily of a $2.2 million increase in accounts receivable 
and inventory, offset by a $0.4 million decrease in prepaid expenses, an increase of $9.4 million in accrued expenses 
and other current liabilities and an increase of $4.1 million in accounts payable. The increase in accrued expenses 
and other current liabilities was primarily attributable to increased expenses related to payroll and other employee 
related expenses, professional service fees and interest expense on loans. Non-cash charges consisted primarily of 
$11.5 million of stock-based compensation expense, $2.0 million in depreciation expense, $4.8 million related to the 
amortization of the debt discount and issuance costs related to the 2024 Convertible Notes, and $0.3 million 
amortization and accretion related to our investments, offset by $0.9 million of premiums paid on securities 
purchased.

Net Cash Provided by (Used in) Investing Activities

Net cash provided by investing activities was $114.7 million in the year ended December 31, 2019. Net cash 

provided by investing activities consisted primarily of cash received for the redemption and sale of marketable 
securities of $234.1 million, partially offset by cash used to purchase marketable securities of $115.5 million. In 
addition, $3.9 million of cash was used for capital expenditures, including $3.4 million for manufacturing 
equipment, $0.2 million for lab equipment and $0.3 million for leasehold improvements related to an expansion of 
our Burlington, Massachusetts headquarters.

Net cash provided by investing activities was $125.6 million in the year ended December 31, 2018. Net cash 

provided by investing activities consisted primarily of cash received for the redemption and sale of marketable 
securities of $348.9 million, partially offset by cash used to purchase marketable securities of $222.5 million. In 
addition, $0.8 million of cash was used for capital expenditures including $0.2 million for manufacturing equipment, 
$0.2 million for lab equipment and $0.4 million for leasehold improvements related to an expansion of our 
Burlington, Massachusetts headquarters.

Net cash used in investing activities was $118.7 million in the year ended December 31, 2017. Net cash used 
in investing activities consisted primarily of cash used to purchase marketable securities of $356.8 million, partially 
offset by cash received from the redemption and sale of marketable securities of $240.2 million. In addition, $2.1 
million of cash was used to purchase property and equipment, primarily computer equipment relating to the creation 
of commercial sales capabilities and further developing our manufacturing capabilities at our contract manufacturer, 
Patheon U.K. Limited.

Net Cash Provided by (Used in) Financing Activities

Net cash provided by financing activities was $29.0 million for the year ended December 31, 2019.  Net cash 

provided by financing activities in the year ended December 31, 2019 consisted primarily $40.0 million of gross 
proceeds received from the 2019 term loan facility and $3.5 million received from the exercise of stock options and 

78

employee stock purchases through our employee stock purchase plan, partially offset by $14.4 million related to the 
payment of principal on our 2015 term loan and $0.1 million of debt issuance costs related to the 2019 term loan 
facility.

Net cash used in financing activities was $6.3 million for the year ended December 31, 2018. Net cash used in 
financing activities in the year ended December 31, 2018 consisted primarily of $10.0 related to the payment of our 
principal on our 2015 term loan, partially offset by $3.7 million received from the exercise of stock options and 
employee stock purchases through our employee stock purchase plan.  

Net cash provided by financing activities was $323.5 million for the year ended December 31, 2017. Net cash 

provided by financing activities in the year ended December 31, 2017 consisted of $194.8 million of proceeds 
received from the issuance of the 2024 Convertible Notes, $132.7 million in proceeds from the follow-on offering of 
our common stock, and $4.9 million in proceeds from the exercise of stock options and the issuance of common 
stock related to our employee stock purchase plan that was partially offset by $8.3 million of principal payments on 
our 2015 term loan and $0.5 million in financing costs associated with our follow-on financing in 2017. 

Contractual Obligations

The following table discloses aggregate information about our contractual obligations and the periods in 

which payments are due as of December 31, 2019:

Long-term debt obligation (including interest)(1)
Operating lease obligations(2)
Monthly base fee to Patheon(3)
2024 Convertible notes obligations(4)
Supply Agreement with Evonik(5)
Total

Payments Due By Period

Total

Less Than
1 Year

1 – 3
Years
(in thousands)

3 – 5
Years

More
Than 5
Years

  $

  $

49,084    $
8,408     
66,011     
231,248     
847     
355,598    $

2,736    $
1,987     
8,518     
6,792     
847   
20,880    $

29,427    $
3,914     
17,036     
13,584     

—   
63,961    $

16,921   
2,507   
17,036     
210,872     

—   

247,336    $

— 
— 
23,421 
— 
— 
23,421  

(1) Represents the contractually required principal and interest payments on our credit facility in accordance with 
the required payment schedule and the 4.75% final payment to the lender on January 1, 2024. Amounts 
associated with future interest payments to be made were calculated using a floating  interest rate equal to the 
greater of the prime rate plus 1.5% or 6.5% per annum.

(2) Represents the contractually required payments under our operating lease obligations in existence as of 
December 31, 2019 in accordance with the required payment schedule. No assumptions were made with 
respect to renewing the lease terms at the expiration date of their initial terms.

(3) Represents the contractually required monthly base fee to Patheon for the operation of the manufacturing 

suite.

(4) Represents the contractually required interest payments in accordance with the required payment schedule and 

the final principal payment of $201.3 million due on May 1, 2024.

(5) Represents contractually required purchases of PLGA for clinical and commercial supply of ZILRETTA. The 
required purchases are based upon a 24-month rolling forecast of 100% of our total volume requirements for 
the PLGA product. Only the first 12 months of the 24-month rolling forecast are binding. Beginning in July 
2019, the require purchases reduce to 50% of our total volume requirements for the PLGA product. Since the 
current required binding forecast does not go beyond December 2020, any potential minimum purchase in the 
year 2021 and beyond are not fixed or determinable and therefore no amounts are presented in the table above.

The table above reflects only payment obligations that are fixed or determinable. We enter into contracts in 

the normal course of business with CROs for clinical trials, with contract manufacturers for clinical and commercial 
supply manufacturing, and with vendors for preclinical research studies, research supplies and other services and 

79

 
 
 
 
 
   
   
   
   
 
 
 
 
   
   
   
   
 
products for operating purposes. These contracts generally provide for termination on notice, and therefore we 
believe that our non-cancelable obligations under these agreements are not material.

In July 2015, we amended the lease for our primary office space to add approximately 4,700 square feet of 

additional office space, with the option to lease an additional 5,400 square feet in the same building in Burlington, 
Massachusetts. In addition, at the time, we leased approximately 6,700 square feet of temporary space for use prior 
to delivery of the additional space. This amendment extended the lease term through October 31, 2019. On 
September 30, 2015, we exercised our option for the additional 5,400 square feet of office space. On September 21, 
2016, we entered into a second amendment to extend the lease for the 6,700 square feet of temporary space until 
October 31, 2017.

On April 7, 2017, we further amended the Lease to extend the term to October 31, 2023 on the then-existing 

office space, including the temporary space, consisting of approximately 28,600 square feet of office space in 
Burlington, Massachusetts. From November 2016 through October 2017, our lease payment for this space was 
approximately $80,000 per month. Also, as part of this amendment to the Lease, we leased an additional 1,471 
square feet of office space beginning in 2018. The lease payment for the 1,471 square feet of office space is 
approximately $4,100 per month. 

On October 6, 2017, we exercised our option for an additional 6,450 square feet of space, and the term for the 

space commenced in April 2018. We have approximately 36,500 square feet of office space in Burlington, 
Massachusetts under a lease term expiring on October 31, 2023. Starting in December 2017, our minimum monthly 
lease payment is approximately $87,000 and it increases over the life of the amended Lease. In addition to the base 
rent for the office space, which increases over the term of the amended Lease, we are responsible for our share of 
operating expenses and real estate taxes. 

In June 2019, we amended the Lease to add approximately 5,330 square feet of additional office space and 

extend the term of the Lease through April 30, 2025 (“the Amended Lease”). As a result of the Amended Lease, the 
total rentable floor area is 41,873 square feet. Starting in August 2019, our minimum monthly lease payment is 
approximately $108,000, which increases over the term of the Amended Lease. In addition to the base rent for the 
office space, we are responsible for our share of operating expenses and real estate taxes. The lease commencement 
date for the additional space, which represents the date we first had access to the space, was July 1, 2019. 

In February 2017, we entered into a five-year lease for laboratory space located in Woburn, Massachusetts 

with a monthly lease payment of approximately $15,000, which increases over the term of the lease, plus a share of 
operating expenses.  The total cash obligations for the term of the lease are approximately $0.9 million.

In July 2015, we and Patheon U.K. Limited, or Patheon, entered into a Manufacturing and Supply Agreement, 

or the Manufacturing Agreement and Technical Transfer and Service Agreement, or the Technical Transfer 
Agreement, for the manufacture of clinical and commercial supplies of ZILRETTA.

Patheon agreed in the Technical Transfer Agreement to undertake certain technical transfer activities and 

construction services needed to prepare Patheon’s United Kingdom facility for the manufacture of ZILRETTA in 
dedicated manufacturing suites. We provided Patheon with certain equipment and materials necessary to 
manufacture ZILRETTA and pay Patheon a monthly fee for such activities and reimburse Patheon for certain 
material, equipment, and miscellaneous expenses and additional services. 

The initial term of the Manufacturing Agreement is 10 years from approval by the FDA of the Patheon 
manufacturing suites for ZILRETTA, or until October 6, 2027. We pay a monthly base fee to Patheon for the 
operation of the manufacturing suites and a per product fee for each vial based upon a forecast of commercial 
demand. We also reimburse Patheon for purchases of materials and equipment made on its behalf, certain nominal 
expenses and additional services. The Manufacturing Agreement will remain in full effect unless and until it is 
terminated. Upon termination of the Manufacturing Agreement (other than termination by us in the event that 
Patheon does not meet the construction and manufacturing milestones or for a breach by Patheon), we will be 
obligated to pay for the costs incurred by Patheon associated with the removal of our manufacturing equipment and 
for Patheon’s termination costs up to a capped amount.

80

In June 2019, we and Patheon amended the Manufacturing Agreement and Technical Transfer Agreement.  
The amendment primarily modifies the compensation structure, which is comprised of base fees and per product 
fees we pay to Patheon. 

In December 2017, we entered into a definitive agreement with GeneQuine to acquire the global rights to 

FX201. As part of the asset purchase transaction with GeneQuine, we made an upfront payment to GeneQuine of 
$2.0 million.  In 2018, we paid GeneQuine $750,000 for the milestone of initiating a GLP toxicology study of 
FX201. In addition, we paid GeneQuine a $750,000 payment in November 2019 following the FDA acceptance of 
the IND application for FX201.  This milestone was recognized as research and development expense in the fourth 
quarter of 2019.  The next milestone of $2.5 million was achieved in March 2020 when the first patient was treated 
in the Phase 1 clinical trial.  We may also be required to make additional milestone payments during the 
development of FX201, including up to $4.5 million through the Phase 2 PoC, clinical trial and, following 
successful PoC, up to an additional $51.5 million in development and global regulatory approval milestone 
payments. The transaction was accounted for as an asset acquisition, as it did not qualify as a business combination.  
The upfront fee was attributed to the intellectual property acquired and recognized as research and development 
expense in December 2017 as the FX201 rights had not been commercially approved and have no alternative future 
use. The milestone payment for the GLP toxicology study was also recorded to research and development expense 
in the fourth quarter of 2018. Future milestone payments earned prior to regulatory approval of FX201 would be 
recognized as research and development expense in the period when the milestone events become probable of being 
achieved. Future milestones earned upon regulatory approval would be recognized as an intangible asset and 
amortized to expense over its estimated life.  As part of the transaction with GeneQuine, we became the direct 
licensee of certain underlying Baylor College of Medicine (Baylor) patents and other proprietary rights related to 
FX201 for human applications.  The Baylor license agreement grants us an exclusive, royalty-bearing, world-wide 
right and license (with a right to sublicense) for human applications under its patent and other proprietary rights 
directly related to FX201, with a similar non-exclusive license to certain Baylor intellectual property rights that are 
not specific to FX201.  The license agreement with Baylor includes a low single-digit royalty on net sales of FX201 
and requires us to use reasonable efforts to develop FX201 according to timelines set out in the license agreement.  
In December 2017, we also entered into a Master Production Services Agreement with SAFC Carlsbad, Inc., a part 
of MilliporeSigma, for the manufacturing of preclinical and initial clinical supplies of FX201.

In September 2019, we acquired the global rights to develop and commercialize Xenon’s NaV1.7 inhibitor, 

funapide,formulated for extended release using our novel, proprietary thermosensitive hydrogel. The preclinical 
program is known as FX301. As part of the asset purchase transaction with Xenon, we made an upfront payment to 
Xenon of $3.0 million.  We may also be required to make additional milestone payments during the development of 
FX301, including up to $9.0 million through initiation of a Phase 2 proof of concept (PoC) clinical trial and, 
following successful PoC, up to $40.8 million in development and global regulatory approval milestone payments 
and up to an additional $75.0 million in sales-related milestone payments.  As of December 31, 2019, no milestones 
under the arrangement had been achieved. As part of the transaction, we became the direct licensee of certain 
underlying Xenon patents and other proprietary rights related to funapide for human applications.  The Xenon 
agreement grants us an exclusive, royalty-bearing, world-wide right and license (with a right to sublicense) for 
human applications under its patents directly related to funapide, with a similar royalty-free license to other Xenon 
proprietary rights directly related to funapide. The agreement with Xenon includes a tiered royalty ranging from 
mid-single digits to low double digits that is based on aggregate annual net sales of FX301 and requires us to use 
reasonable efforts to develop FX301 according to timelines set out in the agreement.

Off-Balance Sheet Arrangements

During the periods presented, we did not have, nor do we currently have, any off-balance sheet arrangements 
that are reasonably likely to have a current or future material effect on our financial condition, changes in financial 
condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources.

Recent Accounting Pronouncements

A discussion of recent accounting pronouncements is included in Note 3 to the consolidated financial 

statements in this Annual Report on Form 10-K.

81

Item  7A. Quantitative and Qualitative Disclosures About Market Risk

Our primary exposure to market risk is interest income sensitivity, which is affected by changes in the general 
level of U.S. interest rates. Due to the short-term duration of our investment portfolio and the low risk profile of our 
investments, an immediate 10% change in interest rates would not have a material effect on the fair market value of 
our portfolio. Accordingly, we would not expect our operating results or cash flows to be affected to any significant 
degree by a sudden change in market interest rates on our investment portfolio.

• We have borrowed $40.0 million under our credit facility. Amounts outstanding under the credit facility 
bear interest at a floating interest rate equal to the greater of the prime rate plus 1.5% or 6.5% per 
annum.  

•

Our 2024 Convertible Notes carry a fixed interest rate and, thus we are not subject to interest rate risk in 
connection with the 2024 Convertible Notes.

• We have borrowed $201.3 million under the 2024 Convertible Notes.  Amounts outstanding bear 

interest at a fixed rate of 3.375% per annum. 

• We do not believe that our cash, cash equivalents and marketable securities have significant risk of 

default or illiquidity. While we believe our cash and cash equivalents and certificates of deposit do not 
contain excessive risk, we cannot provide absolute assurance that in the future our investments will not 
be subject to adverse changes in market value. In addition, we maintain significant amounts of cash and 
cash equivalents at one or more financial institutions that are in excess of federally insured limits.

Most of our transactions are conducted in U.S. dollars. We do have certain material agreements with vendors 
located outside the United States, which have transactions conducted primarily in British Pounds and Euros. As of 
December 31, 2019, we had approximately $4.3 million in payables to vendors denominated in British pounds. A 
hypothetical 10% change in foreign exchange rates would result in a $0.4 million change in the value of our 
liabilities. No other payables to vendors were denominated in currencies other than in U.S. dollars. As of 
December 31, 2019, we also had approximately $0.7 million in cash denominated in British pounds. A hypothetical 
10% change in foreign exchange rates would result a $0.1 million change in the amount of cash denominated in 
British Pounds. 

82

Item 8.

Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm.................................................................................

Consolidated Balance Sheets ................................................................................................................................

Consolidated Statements of Operations and Comprehensive Loss ......................................................................

Consolidated Statements of Changes in Stockholders’ (Deficit) Equity ..............................................................

Consolidated Statements of Cash Flows...............................................................................................................

Notes to Consolidated Financial Statements ........................................................................................................

Page
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88

89

90

83

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders
of Flexion Therapeutics, Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Flexion Therapeutics, Inc. and its 
subsidiary (the “Company”) as of December 31, 2019 and 2018, and the related consolidated statements of 
operations and comprehensive loss, of changes in stockholders’ (deficit) equity and of cash flows for each of the 
three years in the period ended December 31, 2019, including the related notes (collectively referred to as the 
“consolidated financial statements”). We also have audited the Company's internal control over financial reporting 
as of December 31, 2019, based on criteria established in Internal Control - Integrated Framework (2013) issued by 
the Committee of Sponsoring Organizations of the Treadway Commission (COSO).  

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, 

the financial position of the Company as of December 31, 2019 and 2018, and the results of its operations and its 
cash flows for each of the three years in the period ended December 31, 2019 in conformity with accounting 
principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all 
material respects, effective internal control over financial reporting as of December 31, 2019, based on criteria 
established in Internal Control - Integrated Framework (2013) issued by the COSO.

Change in Accounting Principle

As discussed in Note 3 to the consolidated financial statements, the Company changed the manner in which it 
accounts for leases in 2019.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining 
effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over 
financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under 
Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the 
Company's internal control over financial reporting based on our audits. 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 audits in accordance with the standards of the PCAOB. Those standards require that we 

plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are 
free of material misstatement, whether due to error or fraud, and whether effective internal control over financial 
reporting was maintained in all material respects.  

Our audits of the consolidated financial statements included performing procedures to assess the risks of 

material misstatement of the consolidated 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 consolidated financial statements. Our audits also included evaluating the accounting 
principles used and significant estimates made by management, as well as evaluating the overall presentation of the 
consolidated financial statements. Our audit of internal control over financial reporting included obtaining an 
understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and 
testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our 
audits also included performing such other procedures as we considered necessary in the circumstances. We believe 
that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance 
regarding the reliability of financial reporting and the preparation of financial statements for external purposes in 
accordance with generally accepted accounting principles. A company’s internal control over financial reporting 
includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, 

84

accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable 
assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance 
with generally accepted accounting principles, and that receipts and expenditures of the company are being made 
only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable 
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s 
assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect 

misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that 
controls may become inadequate because of changes in conditions, or that the degree of compliance with the 
policies or procedures may deteriorate.

Emphasis of Matter

As discussed in Note 1 to the consolidated financial statements, the Company will require additional financing 

to fund future operations if the Company cannot generate sufficient cash flows from operations in the future.  Also 
as discussed in Note 1 to the consolidated financial statements, the Company’s debt facility includes financial and 
nonfinancial covenants. If the Company cannot generate sufficient revenues in the future, the Company may not be 
in compliance with these covenants and the debt may be called by the lender. Management’s plans in regard to these 
matters are described in Note 1.

/s/ PricewaterhouseCoopers LLP
Boston, Massachusetts
March 12, 2020

We have served as the Company’s auditor since 2010.

85

Flexion Therapeutics, Inc.

Consolidated Balance Sheets

(In thousands, except share amounts)

Assets
Current assets

Cash and cash equivalents
Marketable securities
Accounts receivable, net
Inventories
Prepaid expenses and other current assets

Total current assets

Property and equipment, net
Right-of-use assets
Total assets

Liabilities and Stockholders’ (Deficit) Equity
Current liabilities

Accounts payable
Accrued expenses and other current liabilities
Operating lease liabilities
Current portion of long-term debt

Total current liabilities
Long-term operating lease liability, net
Long-term debt, net
2024 convertible notes, net
Other long-term liabilities

Total liabilities
Commitments and contingencies
Preferred Stock, $0.001 par value; 10,000,000 shares authorized at
     December 31, 2019 and December 31, 2018 and 0 shares issued and
     outstanding at December 31, 2019 and December 31, 2018
Stockholders’ (deficit) equity
Common stock, $0.001 par value; 100,000,000 shares authorized;
   38,361,476 and 37,946,341 shares issued and outstanding, at
   December 31, 2019 and December 31, 2018, respectively

Additional paid-in capital
Accumulated other comprehensive loss
Accumulated deficit

Total stockholders’ (deficit) equity
Total liabilities and stockholders’ (deficit) equity

December 31, 
2019

December 31, 
2018

  $

  $

  $

  $

  $

  $

82,253 
54,407 
37,115 
16,529 
5,371 
195,675 
13,662 
8,223 
217,560 

15,258 
19,610 
1,351 
— 
36,219 
7,609 
40,176 
153,413 
251 
237,668 

87,229 
171,555 
13,121 
7,637 
5,500 
285,042 
10,710 
— 
295,752 

12,340 
14,310 
— 
9,967 
36,617 
— 
3,640 
144,879 
537 
185,673 

— 

— 

38 
648,391 
62 
(668,599)
(20,108)

  $

217,560 

  $

38 
628,944 
(77)
(518,826)
110,079 

295,752  

The accompanying notes are an integral part of these consolidated financial statements.

86

 
 
 
 
 
   
  
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  
   
  
   
   
   
  
   
  
   
   
   
   
   
   
   
   
   
   
Flexion Therapeutics, Inc.

Consolidated Statements of Operations and Comprehensive Loss

(In thousands, except per share amounts)

Revenues
      Product revenue, net
Operating expenses
      Cost of sales

Research and development
Selling, general and administrative
Total operating expenses

Loss from operations
Other (expense) income
Interest income
Interest expense
Other income (expense)

Total other (expense) income

Net loss
Net loss per common share, basic and diluted
Weighted average common shares outstanding, basic and diluted
Other comprehensive income (loss)

Unrealized gains (losses) from available-for-sale securities,
   net of tax of $0

Total other comprehensive income (loss)

Comprehensive loss

  $

  $

  $

Year Ended December 31,
2018

2017

2019

  $

72,957 

 $

22,524 

 $

355 

9,960 
69,559 
129,709 
209,228 
(136,271)

3,212 
(17,066)
352 
(13,502)
(149,773)

(3.93)

38,086 

139 
139 
(149,634)

 $

 $

 $

7,336 
53,079 
121,311 
181,726 
(159,202)

4,567 
(15,712)
688 
(10,457)
(169,659)

(4.49)

37,751 

330 
330 
(169,329)

 $

 $

 $

4 
51,231 
78,801 
130,036 
(129,681)

3,718 
(11,268)
(250)
(7,800)
(137,481)

(4.16)

33,027 

(336)
(336)
(137,817)

The accompanying notes are an integral part of these consolidated financial statements.

87

 
 
 
 
 
 
 
 
 
 
   
  
  
  
  
  
   
  
  
  
  
  
   
  
  
   
  
  
   
  
  
   
  
  
   
  
  
   
  
  
  
  
  
   
  
  
   
  
  
   
  
  
   
  
  
   
  
  
   
  
  
  
  
  
   
  
  
   
  
  
Flexion Therapeutics, Inc.

Consolidated Statements of Changes in Stockholders’ (Deficit) Equity 

(In thousands)

Common Stock

Shares

    Par Value    

Additional
Paid-in
Capital

Accumulated
Other

Comprehensive    
Income (Loss)

Accumulated
Deficit

Total
Stockholders’
(Deficit)
Equity

31,667    $

32    $

398,757    $

(71)   $

(211,686)   $

187,032 

5,520     

6     

132,171     

334     
90     

3,858     
1,016     

11,542     

62,466     

132,177 

3,858 
1,016 

11,542 

62,466 
(137,481)
(336)

(336)    

(137,481)    

37,611    $

38    $

609,810    $

(407)   $

(349,167)   $

260,274 

197     
138     

1,653     
2,022     

15,459     

1,653 
2,022 

15,459 
(169,659)
330 

(169,659)    

330     

37,946    $

38    $

628,944    $

(77)   $

(518,826)   $

110,079 

230     
185     

1,726     
1,820     

15,901     

1,726 
1,820 

15,901 
(149,773)
139 

(149,773)    

139     

38,361    $

38    $

648,391    $

62    $

(668,599)   $

(20,108)

Balance at December 31, 
2016
Issuance of common stock net 
of issuance costs
Issuance of common stock for 
equity awards
Employee stock purchase plan    
Stock-based compensation 
expense
Portion of convertible debt 
proceeds allocated
   to equity component
Net loss
Other comprehensive loss
Balance at December 31, 
2017
Issuance of common stock for 
equity awards, net
   of shares withheld for taxes    
Employee stock purchase plan    
Stock-based compensation 
expense
Net loss
Other comprehensive income    
Balance at December 31, 
2018
Issuance of common stock for 
equity awards, net
   of shares withheld for taxes    
Employee stock purchase plan    
Stock-based compensation 
expense
Net loss
Other comprehensive income    
Balance at December 31, 
2019

The accompanying notes are an integral part of these consolidated financial statements.

88

 
     
       
     
 
     
 
     
 
     
 
 
 
 
   
   
   
 
 
 
   
   
   
 
   
   
      
      
   
      
      
      
      
      
      
   
      
      
      
      
   
      
      
      
      
   
      
      
      
      
   
      
      
      
      
   
      
      
      
      
      
      
   
      
      
      
      
   
      
      
      
      
      
      
      
      
   
      
      
      
      
      
      
   
      
      
      
      
   
      
      
      
      
      
      
      
      
   
Flexion Therapeutics, Inc.

Consolidated Statements of Cash Flows

(In thousands)

Year Ended December 31,
2018

2017

2019

  $

(149,773)   $

(169,659)   $

(137,481)

Cash flows from operating activities

Net loss
Adjustments to reconcile net loss to cash used in operating
   activities:

Depreciation
Amortization of right-of-use assets
Stock-based compensation expense
Non-cash interest expense
(Accretion) Amortization of (discount) premium on marketable 
securities
Loss from debt extinguishment
Amortization of debt discount and debt issuance costs
Premium paid on securities purchased
Changes in operating assets and liabilities:

Accounts receivable
Inventory
Prepaid expenses and other current assets
Accounts payable
Accrued expenses and other current liabilities
Lease liabilities

Net cash used in operating activities

Cash flows from investing activities

Purchases of property and equipment
Purchases of marketable securities
Sale and redemption of marketable securities
Net cash provided by (used in) investing activities

Cash flows from financing activities

Proceeds from the issuance of 2024 convertible notes
Proceeds from borrowings under term loan
Payment of debt issuance costs
Proceeds from the offering of common stock
Payments on notes payable
Payments of public offering costs
Proceeds from the exercise of stock options
Proceeds from employee stock purchase plan
Net cash provided by (used in) financing activities

Net (decrease) increase in cash, cash equivalents, and restricted cash
Cash, cash equivalents, and restricted cash at beginning of period
Cash, cash equivalents, and restricted cash at end of period
Supplemental disclosures of cash flow information

Cash paid for interest

Non-cash investing and financing activities

  $

  $

1,059 
1,337 
15,901 
564 

(1,337)    
352 
8,714 

(34)    

(23,994)    
(7,674)    
126 
1,702 
5,326 
(1,027)    
(148,758)    

(3,894)    
(115,466)    
234,124 
114,764 

— 
40,000 

(161)    
— 
(14,367)    
— 
1,726 
1,820 
29,018 
(4,976)    
87,229 
82,253 

  $

1,714 
— 
15,459 
— 

(1,320)    
— 
7,805 
(214)    

(12,711)    
(5,244)    
(2,097)    
5,141 
707 
— 

(160,419)    

(852)    
(222,482)    
348,918 
125,584 

— 
— 
— 
— 
(10,000)    
— 
1,653 
2,022 
(6,325)    
(41,160)    
128,389 
87,229 

  $

2,008 
— 
11,542 
— 

333 
— 
4,826 
(857)

(410)
(1,799)
387 
4,188 
9,432 
— 
(107,831)

(2,146)
(356,754)
240,228 
(118,672)

201,250 
— 
(6,470)
132,666 
(8,333)
(490)
3,858 
1,016 
323,497 
96,994 
31,395 
128,389 

8,049 

  $

7,874 

  $

5,080 

Right-of-use asset obtained in exchange for operating lease obligation   $
Portion of debt proceeds allocated to equity component
  $
Purchases of property and equipment in accounts payable and accrued 
expenses

  $

9,560 
— 

  $
  $

— 
— 

  $
  $

— 
62,466 

2,202 

  $

986 

  $

9  

The accompanying notes are an integral part of these consolidated financial statements.

89

 
 
 
 
 
 
 
 
 
 
   
  
   
  
   
  
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  
   
  
   
  
   
  
   
  
   
  
Flexion Therapeutics, Inc.

Notes to Consolidated Financial Statements

1.

Nature of the Business

Flexion Therapeutics, Inc. (“Flexion” or the “Company”) was incorporated under the laws of the state of 

Delaware on November 5, 2007. Flexion is a biopharmaceutical company focused on the discovery, development 
and commercialization of novel, local therapies for the treatment of patients with musculoskeletal conditions, 
beginning with osteoarthritis, (“OA”), a type of degenerative arthritis. The Company has an approved product, 
ZILRETTA®, which it markets in the United States. ZILRETTA is the first and only extended-release, intra-
articular, or IA (meaning in the joint), injection indicated for the management of OA knee pain. ZILRETTA is a 
non-opioid therapy that employs Flexion’s proprietary microsphere technology to provide effective pain relief. The 
pivotal Phase 3 trial, on which the approval of ZILRETTA was based, showed that ZILRETTA met the primary 
endpoint of pain reduction at Week 12, with statistically significant pain relief extending through Week 16. The 
Company also has two pipeline programs focused on the local treatment of musculoskeletal conditions: FX201, 
which is an investigational IA gene therapy product candidate in clinical development for the treatment of OA, and 
FX301, a preclinical product candidate, which is being developed as a locally administered peripheral nerve block 
for control of post-operative pain. 

The Company is subject to risks and uncertainties common to companies in the biopharmaceutical industry, 

including, but not limited to, new technological innovations, dependence on key personnel, protection of proprietary 
technology, compliance with government regulations, and the ability to secure additional capital to fund operations. 
Successfully commercializing ZILRETTA requires significant sales and marketing efforts and the Company’s 
pipeline programs may require significant additional research and development efforts, including extensive 
preclinical and clinical testing. These activities will in turn require significant amounts of capital, qualified 
personnel and adequate infrastructure. There can be no assurance when, if ever, the Company will realize significant 
revenue from the sales of ZILRETTA or if the development efforts supporting the Company’s pipeline, including 
future clinical trials, will be successful.

The accompanying consolidated financial statements have been prepared on a basis which assumes that the 

Company will continue as a going concern and which contemplates the realization of assets and satisfaction of 
liabilities and commitments in the normal course of business. The Company has incurred recurring losses and 
negative cash flows from operations. As of December 31, 2019, the Company had cash, cash equivalents, and 
marketable securities of approximately $136.7 million. Management believes that current cash, cash equivalents and 
marketable securities on hand at December 31, 2019 should be sufficient to fund operations and debt obligations for 
at least the next 12 months beyond the date of issuance of these financial statements. The future viability of the 
Company is dependent on its ability to fund its operations through sales of ZILRETTA, or the Company will need to 
raise additional capital, such as debt or equity offerings, as needed. This funding is necessary for the Company to 
support the commercialization of ZILRETTA and to perform the research and development activities required to 
develop the Company’s other product candidates in order to generate future revenue streams. The Company may not 
be able to obtain financing on acceptable terms, or at all.  If the Company is unable to obtain funding on a timely 
basis, the Company may need to curtail its operations, including the commercialization of ZILRETTA and its 
research and development activities, which could adversely affect its prospects.

In connection with the Term Loan described in Note 10, if the Company’s cash balance in the future decreases 
below $80 million, the Company will need to remain in compliance with a minimum monthly net revenue covenant 
(determined in accordance with U.S. GAAP), measured on a trailing twelve month basis.  The lender also has the 
ability to call debt based on a material adverse change clause, which is subjectively defined. If the Company is not 
in compliance with the monthly net revenue covenants or the subjective acceleration clauses are triggered under the 
agreement, then the lender may call the debt resulting in the Company immediately needing additional funds. As of 
December 31, 2019, the Company was in compliance with all covenants.

90

 
2.

Financing Transactions

On August 2, 2019, the Company entered into an amended and restated credit and security agreement (the 

“amended and restated credit and security agreement”) with Silicon Valley Bank as agent, MidCap Financial Trust, 
Flexpoint MCLS Holdings, LLC, and the other lenders from time to time party thereto (collectively, the “Lenders”), 
providing for a term loan of $40.0 million and a revolving credit facility of up to $20.0 million, both of which 
mature on January 1, 2024 (the “Maturity Date”). The Company concurrently borrowed the $40.0 million term loan 
and used $7.7 million of the proceeds to repay the remaining amount owed on the 2015 term loan.

On October 16, 2017, the Company completed a follow-on public offering of its common stock, which 
resulted in the sale of 5,520,000 shares of the Company’s common stock at a price to the public of $25.50 per share 
including shares sold pursuant to the exercise in full of the underwriters’ option to purchase additional shares. The 
Company received net proceeds from the follow-on financing of $132.2 million after deducting underwriting 
discounts, commissions, and offering costs paid by the Company

On May 2, 2017, the Company issued an aggregate of $201.3 million principal amount of the 2024 
Convertible Notes. The 2024 Convertible Notes have a maturity date of May 1, 2024 are unsecured and accrue 
interest at a rate of 3.375% per annum, payable semi-annually on May 1 and November 1 of each year, beginning 
November 1, 2017. The Company received $194.8 million for the sale of the 2024 Convertible Notes, after 
deducting fees and expenses of $6.5 million.

The Company’s total issued common stock as of December 31, 2019 was 38,361,476 shares.

3.

Summary of Significant Accounting Policies

Basis of Presentation

The accompanying consolidated financial statements have been prepared in accordance with the rules and 
regulations of the Securities and Exchange Commission (the “SEC”) and Generally Accepted Accounting Principles 
(“GAAP”) for financial information, including the accounts of the Company and its wholly owned subsidiary after 
elimination of all significant intercompany accounts and transactions.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and 

judgments that may affect the reported amounts of assets and liabilities, revenues and expenses and related 
disclosures. The Company bases estimates and judgments on historical experience and on various other factors that 
it believes to be reasonable under the circumstances. The most significant estimates in these consolidated financial 
statements include estimates related to revenue and accrued expenses related to preclinical and clinical development 
costs. The Company’s actual results may differ from these estimates under different assumptions or conditions. The 
Company evaluates its estimates on an ongoing basis. Changes in estimates are reflected in reported results in the 
period in which they become known by the Company’s management.

Revenue Recognition

On October 6, 2017, U.S. Food and Drug Administration, (the FDA), approved ZILRETTA. The Company 
entered into a limited number of arrangements with specialty distributors and a specialty pharmacy in the U.S. to 
distribute ZILRETTA. The Company recognizes revenue in accordance with Accounting Standards Codification 
(“ASC”) Topic 606 - Revenue from Contracts with Customers (“Topic 606”). Under Topic 606, an entity recognizes 
revenue when its customer obtains control of promised goods or services, in an amount that reflects the 
consideration which the entity expects to be entitled to in exchange for those goods or services.

To determine revenue recognition for arrangements that an entity determines are within the scope of Topic 

606, the entity performs the following five steps: (i) identify the contract(s) with a customer, (ii) identify the 
performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the 

91

performance obligations in the contract, and (v) recognize revenue when (or as) the entity satisfies a performance 
obligation. The Company only applies the five-step model to arrangements that meet the definition of a contract 
with a customer under Topic 606, including when it is probable that the entity will collect the consideration it is 
entitled to in exchange for the goods or services it transfers to the customer. At contract inception, once the contract 
is determined to be within the scope of Topic 606, the Company assesses the goods or services promised within each 
contract, determines those that are performance obligations, and assesses whether each promised good or service is 
distinct. The Company then recognizes as revenue the amount of the transaction price that is allocated to the 
respective performance obligation when (or as) the performance obligation is satisfied.

Product Revenue, Net— The Company primarily sells ZILRETTA to specialty distributors and a specialty 

pharmacy, who then subsequently resell ZILRETTA to physicians, clinics and certain medical centers or hospitals. 
The Company also contracts directly with healthcare providers and intermediaries such as Group Purchasing 
Organizations (“GPOs”). In addition, the Company enters into arrangements with government payers that provide 
for government mandated rebates and chargebacks with respect to the purchase of ZILRETTA. 

The Company recognizes revenue on product sales when the customer obtains control of the Company's 
product, which occurs at a point in time (upon delivery to the customer). The Company has determined that the 
delivery of ZILRETTA to its customers constitutes a single performance obligation. There are no other promises to 
deliver goods or services beyond what is specified in each accepted customer order. The Company has assessed the 
existence of a significant financing component in the agreements with its customers. The trade payment terms with 
our customers do not exceed one year and therefore the Company has elected to apply the practical expedient and no 
amount of consideration has been allocated as a financing component. Product revenues are recorded net of 
applicable reserves for variable consideration, including discounts and allowances.

Transaction Price, including Variable Consideration— Revenues from product sales are recorded at the net 

sales price (transaction price), which includes estimates of variable consideration for which reserves are established. 
Components of variable consideration include trade discounts and allowances, product returns, government 
chargebacks, discounts and rebates, and other incentives, such as voluntary patient assistance, and other fee for 
service amounts that are detailed within contracts between the Company and its customers relating to the 
Company’s sale of its products. These reserves, as detailed below, are based on the amounts earned, or to be claimed 
on the related sales, and are classified as reductions of accounts receivable (if the amount is payable to the customer) 
or a current liability (if the amount is payable to a party other than a customer). These estimates take into 
consideration a range of possible outcomes which are probability-weighted in accordance with the expected value 
method in Topic 606 for relevant factors such as current contractual and statutory requirements, specific known 
market events and trends, industry data, and forecasted customer buying and payment patterns. Overall, these 
reserves reflect the Company’s best estimates of the amount of consideration to which it is entitled based on the 
terms of the respective underlying contracts.

The amount of variable consideration which is included in the transaction price may be constrained and is 
included in the net sales price only to the extent that it is probable that a significant reversal in the amount of the 
cumulative revenue recognized under the contract will not occur in a future period. Actual amounts of consideration 
ultimately received may differ from the Company’s estimates. If actual results in the future vary from the 
Company’s original estimates, the Company will adjust these estimates, which would affect net product revenue and 
earnings in the period such variances become known.

Service Fees and Allowances—The Company compensates its customers and GPOs for sales order 

management, data, and distribution services. However, the Company has determined such services received to date 
are not distinct from the Company’s sale of products to the customer and, therefore, these payments have been 
recorded as a reduction of revenue within the statement of operations and comprehensive loss through December 31, 
2019, as well as a reduction to trade receivables, net on the consolidated balance sheets.

Product Returns— Consistent with industry practice, the Company generally offers customers a limited right 

of return for product that has been purchased from the Company based on the product’s expiration date.  The 

92

Company estimates the amount of its product sales that may be returned by its customers and records this estimate 
as a reduction of revenue in the period the related product revenue is recognized, as well as within accrued expenses 
and other current liabilities, net, on the consolidated balance sheets. The Company currently estimates product return 
liabilities using available industry data and its own sales information, including its visibility into the inventory 
remaining in the distribution channel. The Company has received an immaterial amount of returns to date and 
believes that returns of ZILRETTA will be minimal.

Chargebacks— Chargebacks for fees and discounts to qualified government healthcare providers represent the 

estimated obligations resulting from contractual commitments to sell products to qualified VA hospitals and 340b 
entities at prices lower than the list prices charged to customers who directly purchase the product from the 
Company. The 340b Drug Discount Program is a US federal government program created in 1992 that requires drug 
manufacturers to provide outpatient drugs to eligible health care organizations and covered entities at significantly 
reduced prices.  Customers charge the Company for the difference between what they pay for the product and the 
statutory selling price to the qualified government entity. These reserves are established in the same period that the 
related revenue is recognized, resulting in a reduction of product revenue and trade receivables, net. Chargeback 
amounts are generally determined at the time of resale to the qualified government healthcare provider by 
customers, and the Company generally issues credits for such amounts within a few weeks of the Customer’s 
notification to the Company of the resale. Reserves for chargebacks consist of credits that the Company expects to 
issue for units that remain in the distribution channel inventories at each reporting period-end that the Company 
expects will be sold to qualified healthcare providers, and chargebacks that customers have claimed, but for which 
the Company has not yet issued a credit. 

Government Rebates— The Company is subject to discount obligations under state Medicaid programs and 

Medicare. These reserves are recorded in the same period the related revenue is recognized, resulting in a reduction 
of product revenue and the establishment of a current liability which is included in accrued expenses and other 
current liabilities on the consolidated balance sheets. For Medicare, the Company also estimates the number of 
patients in the prescription drug coverage gap for whom the Company will owe an additional liability under the 
Medicare Part D program. The Company anticipates its exposure to utilization from the Medicare Part D coverage 
gap discount program to be immaterial.  For Medicaid programs, the Company estimates the portion of sales 
attributed to Medicaid patients and records a liability for the rebates to be paid to the respective state Medicaid 
programs.  The Company’s liability for these rebates consists of invoices received for claims from prior quarters that 
have not been paid or for which an invoice has not yet been received, estimates of claims for the current quarter, and 
estimated future claims that will be made for product that has been recognized as revenue, but which remains in the 
distribution channel inventories at the end of each reporting period. 

Purchaser/Provider Discounts and Rebates—Beginning in the third quarter of 2019, the Company began 
offering rebates to eligible purchasers and healthcare providers that are variable based on the volume of product 
purchased. Rebates are based on actual purchase levels during the rebate purchase period. The Company estimates 
these rebates and records such estimate in the same period the related revenue is recognized, resulting in a reduction 
of product revenue and the establishment of a current liability. 

Other Incentives— Other incentives which the Company offers include voluntary patient assistance programs, 
such as the co-pay assistance program, which are intended to provide financial assistance to qualified commercially-
insured patients with prescription drug co-payments required by payers. The calculation of the accrual for co-pay 
assistance is based on an estimate of claims and the cost per claim that the Company expects to receive associated 
with product that has been recognized as revenue, but remains in the distribution channel inventories at the end of 
each reporting period. The adjustments are recorded in the same period the related revenue is recognized, resulting 
in a reduction of product revenue and the establishment of a current liability which is included as a component of 
accrued expenses and other current liabilities on the consolidated balance sheets.

To date, the Company’s only source of product revenue has been from the U.S. sales of ZILRETTA, which it 

began shipping to customers in October 2017. 

93

   
The following table summarizes activity in each of the product revenue allowance and reserve categories for 

the years ended December 31, 2019, 2018 and 2017:

 (In thousands)
Balance as of January 1, 2017
Provision related to sales in the current year
Credit or payments made during the period
Balance as of December 31, 2017
Provision related to sales in the current year
Credit or payments made during the period
Balance as of December 31, 2018
Provision related to sales in the current year
Credit or payments made during the period
Adjustments related to prior period sales
Balance as of December 31, 2019

Service Fees, 
Allowances and 
Chargebacks

Government 
Rebates and Other 
Incentives

Product 
Returns

Purchaser/Provider 
Discounts and 
Rebates

    Total

 $

 $

—   $
100    
(40)  
60    
1,688    
(1,147)   
601    
5,527    
(4,281)   
—    
1,847   $

—    $
15     
—   
15     
502     
(26)    
491     
261     
(375)    
(129)  
248    $

—   $
2   
—   
2   
124   
(1)  
125   
334    
(57)   
—   
402   $

—   $
—    
—    
—    
—    
—    
—    
2,685    
(1,029)   
—    
1,656   $

— 
117 
(40)
77 
2,314 
(1,174)
1,217 
8,807 
(5,742)
(129)
4,153  

Inventory

The Company values its inventories at the lower of cost or estimated net realizable value. The Company 
determines the cost of its inventories, which includes amounts related to materials and manufacturing overhead, on a 
first-in, first-out basis. The Company performs an assessment of the recoverability of capitalized inventory during 
each reporting period, and it writes down any excess and obsolete inventories to their estimated realizable value in 
the period in which the impairment is first identified.  Such impairment charges, should they occur, are recorded 
within cost of sales.  The determination of whether inventory costs will be realizable requires estimates by 
management. If actual market conditions are less favorable than projected by management, additional write-downs 
of inventory may be required, which would be recorded as a cost of sales in the consolidated statements of 
operations and comprehensive loss.

The Company capitalizes inventory costs associated with the Company’s products after regulatory approval 

when, based on management’s judgment, future commercialization is considered probable and the future economic 
benefit is expected to be realized. Inventory acquired prior to receipt of marketing approval of a product candidate is 
expensed as research and development expense as incurred. Inventory that can be used in either the production of 
clinical or commercial product is expensed as research and development expense when selected for use in a clinical 
manufacturing campaign.  Inventory produced that will be used in promotional marketing campaigns is expensed to 
selling, general and administrative expense when it is selected for use in a marketing program.

Consolidation

The accompanying consolidated financial statements include the Company and its wholly-owned subsidiary, 

Flexion Therapeutics Securities Corporation. The Company has eliminated all intercompany transactions for the 
years ended December 31, 2019, 2018 and 2017. In addition, Flexion Therapeutics, Inc. is registered to do business 
in the United Kingdom through its branch office located in Swindon, United Kingdom.

Accounts Receivable

Accounts receivable are recorded net of customer allowances for distribution fees and chargebacks, and 
doubtful accounts. Allowances for distribution fees and chargebacks are based on contractual terms. The Company 
estimates the allowance for doubtful accounts based on existing contractual payment terms, actual payment patterns 
of its customers and individual customer circumstances. At December 31, 2019 and 2018, respectively, the 
Company determined that an allowance for doubtful accounts was not required. No accounts were written off during 
the years ended December 31, 2019 and 2018, respectively.

94

 
   
   
   
 
  
  
  
  
  
  
  
  
 
Cash and Cash Equivalents

The Company considers all highly liquid investments with a maturity of three months or less at the date of 
purchase to be cash equivalents. The Company currently invests available cash in money market funds of a major 
financial institution, corporate bonds, government obligations and commercial paper.

Marketable Securities

Marketable securities consist of investments with original maturities greater than ninety days and less than one 

year from the balance sheet date. Long-term investments consist of investments with maturities of greater than one 
year. The Company classifies all of its investments, which consist solely of debt securities, as available-for-sale. 
Accordingly, these investments are recorded at fair value, which is based on quoted market prices. Unrealized gains 
and losses are recorded as a component of other comprehensive income (loss). Realized gains and losses are 
determined on a specific identification basis and are included in other income (loss). Amortization and accretion of 
discounts and premiums is recorded in other income.

Property and Equipment

Property and equipment are stated at cost less accumulated depreciation. Depreciation and amortization 

expense is recognized using the straight-line method over the following estimated useful lives:

Computers, office equipment, and minor computer
   software
Computer software
Manufacturing equipment
Furniture and fixtures

Estimated
Useful Life
(Years)

3
7
7-10
5

Leasehold improvements are amortized over the shorter of the lease term or the estimated useful life of the 

related asset. Costs of major additions and betterments are capitalized and depreciated on a straight-line basis over 
their useful lives. Repairs and maintenance costs are expensed as incurred. Upon retirement or sale, the cost of assets 
disposed of and the related accumulated depreciation are removed from the accounts and any resulting gain or loss is 
credited or charged to income. Property and equipment includes construction-in-progress, that is not yet in service.

Foreign Currencies

The Company maintains a bank account designated in British Pounds. All foreign currency payables and cash 

balances are measured at the applicable exchange rate at the end of the reporting period. All associated gains and 
losses from foreign currency transactions are reflected in the consolidated statements of operations. 

Impairment of Long-Lived Assets

The Company reviews its long-lived assets, including property and equipment, for impairment whenever 

events or changes in business circumstances indicate that the carrying amount of the assets may not be fully 
recoverable. Factors that the Company considers in deciding when to perform an impairment review include 
significant underperformance of the business in relation to expectations, significant negative industry or economic 
trends, and significant changes or planned changes in the use of the assets. If an impairment review is performed to 
evaluate a long-lived asset for recoverability, the Company compares forecasts of undiscounted cash flows expected 
to result from the use and eventual disposition of the long-lived asset to its carrying value. An impairment loss 
would be recognized when estimated undiscounted future cash flows expected to result from the use of an asset are 
less than its carrying amount. The impairment loss would be based on the excess of the carrying value of the 
impaired asset over its fair value, determined based on discounted cash flows.

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Debt Issuance Costs, net

As of December 31, 2019 and 2018, the carrying value of debt issuance costs was $2.9 million and $3.5 
million, respectively, and was presented as a direct deduction from the carrying amounts of long-term debt. In 
addition, $0.6 million, $0.6 million, and $0.4 million, respectively, of debt issuance costs were amortized and 
recognized as other expense in the statement of operations for the years ended December 31, 2019, 2018 and 2017.  

Research and Development

Research and development expenses are comprised of costs incurred in performing research and development 

activities, including salaries and benefits, facilities costs, overhead costs, depreciation, clinical trial and related 
clinical manufacturing costs, contract services and other related costs. Research and development costs are expensed 
to operations as the related obligation is incurred.

As part of the process of preparing its financial statements, the Company is required to estimate its accrued 

expenses. This process involves reviewing open contracts and purchase orders, communicating with applicable 
internal and vendor personnel to identify services that have been performed on the Company’s behalf and estimating 
the level of service performed and the associated cost incurred for the service when the Company has not yet been 
invoiced or otherwise notified of the actual cost. The majority of the Company’s service providers invoice it 
monthly in arrears for services performed or when contractual milestones are met.  The Company makes estimates 
of its accrued expenses as of each balance sheet date in its financial statements based on facts and circumstances 
known to it at that time.  The Company periodically confirms the accuracy of its estimates with the service providers 
and makes adjustments if necessary.  Examples of estimated accrued research and development expenses include 
fees paid to:

(cid:129)
(cid:129)
(cid:129)
(cid:129)

CROs in connection with clinical studies;
investigative sites in connection with clinical studies;
vendors related to product manufacturing, development and distribution of clinical supplies; and
vendors in connection with preclinical development activities.

The Company records expenses related to clinical studies and manufacturing development activities based 

on its estimates of the services received and efforts expended pursuant to contracts with multiple CROs and 
manufacturing vendors that conduct and manage these activities on the Company’s behalf.  The financial terms of 
these agreements are subject to negotiation, vary from contract to contract, and may result in uneven payment flows.  

The Company makes estimates of its accrued expenses as of each balance sheet date in its financial 
statements based on facts and circumstances known to it. If timelines or contracts are modified based upon changes 
in the clinical trial protocol or scope of work to be performed, the Company modifies its estimates of accrued 
expenses accordingly on a prospective basis. If the Company does not identify costs that it has begun to incur, or if it 
underestimates or overestimates the level of services performed or the costs of these services, the Company’s actual 
expenses could differ from its estimates. To date, the Company has not adjusted its estimates at any particular 
balance sheet date in any material amount.

Patent Costs

All patent-related costs incurred in connection with filing and prosecuting patent applications are recorded as 

general and administrative expenses as incurred, as recoverability of such expenditures is uncertain.

Accounting for Stock-Based Compensation

The Company measures all stock options and other stock based-awards granted to employees at the fair value 

at the date of grant using the Black-Scholes option-pricing model. The fair value of the awards is recognized as 
expense over the requisite service period, which is generally the vesting period of the respective award. The straight-
line method of expense recognition is applied to all awards with service-only conditions. The Company accounts for 
forfeitures as they occur and does not estimate future forfeitures. As such, previously recognized compensation 
expense for an award is reversed in the period that the award is forfeited. For stock awards that have a performance 
condition, the Company recognizes compensation expense based on its assessment of the probability that the 

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performance condition will be achieved, using an accelerated attribution model, over the explicit or implicit service 
period.

As a result of our adoption of “ASU 2018-07”, stock-based awards granted to non-employees are accounted 

for the same way as awards granted to employees, and such awards will not be re-measured at fair value each 
reporting period.  We adopted this standard prospectively and there was no impact on previously issued financial 
statements.

The Company classifies stock-based compensation expense in the consolidated statements of operations in the 

same manner in which the award recipient’s payroll costs are classified, or in the case of a non-employee, in the 
same manner as the award recipient’s service costs are classified.

Concentration of Credit Risk and Significant Suppliers

Financial instruments that potentially expose the Company to concentration of credit risk consist primarily of 

commercial paper and corporate bonds. The Company generally invests its cash in money market funds, government 
and corporate bonds, and commercial paper at one financial institution. The Company does not believe that it is 
subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships.

The Company is completely dependent on third-party manufacturers and product suppliers for research and 

commercial activities. In particular, the Company relies on a limited number of manufacturers and relies on them to 
purchase from third-party suppliers the materials necessary to produce its product candidates for its clinical trials 
and for commercial supply. These programs would be adversely affected by a significant interruption in the supply 
of active pharmaceutical ingredients.

Three individual customers accounted for 44%, 25% and 15% for a total 84% of product revenues for the year 

ended 2019, and two individual customers accounted for 49% and 32% for a total of 81% for the year ended 
December 31, 2018.   Four individual customers accounted for 42%, 11%, 20%, and 20% for a total of 93% of 
accounts receivable from product sales for the year ended December 31, 2019, and two individual customers 
accounted for 52% and 30% for a total of 82% for the year ended December 31, 2018.  No other customers 
accounted for more than 10% of product revenue or accounts receivable for the years ended December 31, 2019 and 
2018, respectively.

Comprehensive Loss

Comprehensive loss includes net loss as well as other changes in stockholders’ equity that result from 
transactions and economic events other than those with stockholders. The Company’s only element of other 
comprehensive income (loss) in all periods presented was unrealized gains (losses) on available-for-sale securities.

Income Taxes

The Company accounts for income taxes using the asset and liability method. Under this method, deferred tax 
assets and liabilities are recognized for the estimated future tax consequences of events that have been recognized in 
the financial statements or in the Company’s tax returns. Deferred taxes are determined based on the differences 
between financial statement carrying amounts of existing assets and liabilities and their respective tax basis. 
Deferred tax assets and liabilities are measured using enacted rates in effect for the year in which these temporary 
differences are expected to be recovered or settled. Changes in deferred tax assets and liabilities are recorded in the 
provision for income taxes. The Company assesses the likelihood that its deferred tax assets will be recovered from 
future taxable income and, to the extent it believes, based upon the weight of available evidence, that it is more 
likely than not that all or a portion of deferred tax assets will not be realized, a valuation allowance is established 
through a charge to income tax expense. Potential recovery of deferred tax assets is evaluated by estimating the 
future taxable profits expected and considering prudent and feasible tax planning strategies.

The Company accounts for uncertainty in income taxes recognized in the financial statements by applying a 

two-step process to determine the amount of tax benefit to be recognized. First, the tax position must be evaluated to 

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determine the likelihood that it will be sustained upon external examination by the taxing authorities. If the tax 
position is deemed more-likely-than-not to be sustained, the tax position is then assessed to determine the amount of 
benefit to recognize in the financial statements. The amount of benefit that may be recognized is the largest amount 
that has a greater than 50% likelihood of being realized upon ultimate settlement. The provision for income taxes 
includes the effects of any resulting tax reserves, or unrecognized tax benefits, that are considered appropriate as 
well as the related net interest and penalties.

Fair Value Measurements

Fair value is defined as the exchange price that would be received to sell 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 at the measurement date. Valuation techniques used to measure fair value must 
maximize the use of observable inputs and minimize the use of unobservable inputs. Financial assets and liabilities 
carried at fair value are to be classified and disclosed in one of the following three levels of the fair value hierarchy, 
of which the first two are considered observable and the last is considered unobservable:

•  Level 1 — Quoted market prices in active markets for identical assets or liabilities. Level 1 consists primarily of 

financial instruments whose value is based on quoted market prices, such as exchange-traded 
instruments and listed equities.

•  Level 2 — Observable inputs (other than Level 1 quoted prices) such as quoted prices in active markets for 

similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or 
liabilities, or other inputs that are observable or can be corroborated by observable market data.

•  Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to 

determining the fair value of the assets or liabilities, including pricing models, discounted cash flow 
methodologies and similar techniques.

The Company’s financial instruments consist of cash equivalents, marketable securities, accounts payable and 

accrued expenses, its term loan and 2024 Convertible Notes (Note 10). The estimated fair value of the Company’s 
financial instruments, with the exception of the 2024 Convertible Notes, approximates their carrying values.  

The fair value of the 2024 Convertible Notes, which differs from their carrying value, is influenced by interest 

rates, stock price and stock price volatility and is determined by prices for the 2024 Convertible Notes observed in 
market trading.  The market for trading of the 2024 Convertible Notes is not considered to be an active market and 
therefore the estimate of fair value is based on Level 2 inputs.  The estimated fair value of the 2024 Convertible 
Notes, face value of $201.3 million, was $215.7 million at December 31, 2019.

Net Loss Per Share

The Company follows the two-class method when computing net loss per share as the Company has issued 
shares that meet the definition of participating securities. The two-class method determines net loss per share for 
each class of common and participating securities according to dividends declared or accumulated and participation 
rights in undistributed earnings. The two-class method requires income available to common stockholders for the 
period to be allocated between common and participating securities based on their respective rights to receive 
dividends as if all income for the period had been distributed.

Basic net loss per share attributable to common stockholders is computed by dividing the net loss attributable 

to common stockholders by the weighted average number of shares of common stock outstanding for the period. 
Diluted net loss attributable to common stockholders is computed by adjusting net loss attributable to common 
stockholders to reallocate undistributed earnings based on the potential impact of dilutive securities, including the 
assumed conversion of our 2024 Convertible Notes, outstanding stock options and unvested restricted common 
stock, except where the result would be anti-dilutive. Diluted net loss per share attributable to common stockholders 
is computed by dividing the diluted net loss attributable to common stockholders by the weighted average number of 
common shares outstanding for the period, including potential dilutive common shares assuming the dilutive effect 
of the conversion of the 2024 Convertible Notes, the exercise of outstanding stock options and the vesting unvested 
restricted common stock. In the diluted net loss per share calculation, net loss would also be adjusted for the 

98

elimination of interest expense on the 2024 Convertible Notes, if the impact was not anti-dilutive. For periods in 
which the Company has reported net losses, diluted net loss per share attributable to common stockholders is the 
same as basic net loss per share attributable to common stockholders, since dilutive common shares are not assumed 
to have been issued if their effect is anti-dilutive. Potential common shares will always be anti-dilutive for periods in 
which the Company has reported a net loss. Diluted net loss per share attributable to common stockholders is the 
same as basic net loss per share attributable to common stockholders for the years ended December 31, 2019, 2018 
and 2017.

Segment Data

The Company manages its operations as a single operating segment for the purposes of assessing performance and 
making operating decisions. The Company is a biopharmaceutical company focused on the development and 
commercialization of novel, local therapies. All revenues for the years ended December 31, 2019, 2018 and 2017 
were generated in the United States.  

Recent Accounting Pronouncements

Accounting Standards Recently Adopted

In February 2016, the Financial Accounting Standards Board, or FASB, issued ASU 2016-02, Leases (“ASU 

2016-02”), to increase transparency and comparability among organizations by recognizing lease assets and 
liabilities, including operating leases, on the balance sheet and disclosing key information about leasing 
arrangements. The Company adopted ASU 2016-02 on January 1, 2019 using the “Comparatives under 840” 
approach, which was approved by the FASB in July 2018 as part of ASU 2018-11. Under this method, the 
consolidated financial statements as of the year ended December 31, 2019 are presented applying the new 
requirements under ASC 842, while the consolidated financial statements as of the year ended December 31, 2018 
are presented under ASC 840.

As part of its adoption of ASU 2016-02, the Company elected the package of practical expedients which 

allows it to not reassess (1) whether existing contracts contain leases, (2) the lease classification for existing leases, 
and (3) whether existing initial direct costs meet the new definition. Consequently, on adoption, the Company 
recognized lease liabilities of $7.0 million and corresponding right-of-use (“ROU”) assets of $6.6 million based on 
the present value of the remaining minimum rental payments under current leasing standards for existing operating 
leases. These lease liabilities and ROU assets relate to operating leases only, as the Company concluded that it does 
not have any finance leases. The difference between the lease liability and the ROU assets upon adoption relates to 
the deferred rent balance that had been recorded prior to adoption. The Company determined that no cumulative 
adjustment to retained earnings was required.

In June 2018, the FASB issued ASU No. 2018-07, Compensation – Stock Compensation (Topic 718): 
Improvements to Nonemployee Share-Based Payment Accounting (“ASU 2018-07”). The new standard expands the 
scope of Topic 718 to include share-based payment transactions for acquiring goods and services from 
nonemployees. Equity-based payments to nonemployees were previously covered under ASC 505-50 and required 
companies to measure the awards based on the fair value of the consideration received or the fair value of the equity 
instruments issued and remeasure the fair value of such awards at each reporting date. The Company adopted ASU 
2018-07 prospectively and there was no impact on previously issued financial statements.

Accounting Standards Recently Issued

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): 
Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). The new standard requires entities to 
measure all expected credit losses for financial assets held at the reporting date based on historical experience, 
current conditions and reasonable and supportable forecasts. ASU 2016-13 is effective for fiscal years, and the 
interim periods within those years, beginning after December 15, 2019, and early adoption is permitted. The 
Company is currently evaluating the impact of ASU 2016-13 on the Company’s consolidated financial statements.

99

In July 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure 
Framework—Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”). The new 
standard modifies the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement, as 
part of the FASB’s disclosure framework project. ASU 2018-13 is effective for fiscal years, and the interim periods 
within those years, beginning after December 15, 2019, and early adoption is permitted. Additionally, the new 
standard permits an entity to early adopt any removed or modified disclosures upon issuance of the ASU and delay 
adoption of the additional disclosures until their effective date. ASU 2018-13 removes the requirement to disclose 
the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy. The Company early 
adopted this portion of the standard as of the quarter ended September 30, 2018. The Company does not expect the 
adoption of the remainder of ASU 2018-13 to have any impact on its consolidated financial statements, as the 
changes to the disclosures are primarily relevant for companies with Level 3 assets and liabilities, which the 
Company does not have.

4.

Fair Value of Financial Assets and Liabilities

The following tables present information about the Company’s assets that are measured at fair value on a 

recurring basis as of December 31, 2019 and 2018 and indicate the level of the fair value hierarchy utilized to 
determine such fair value:

(In thousands)
Assets:
Cash equivalents
Marketable securities

(In thousands)
Assets:
Cash equivalents
Marketable securities

Fair Value Measurements as of December 31, 2019
Total

  Level 3

  Level 2

  Level 1

  $

  $

  $

  $

— 
— 
— 

  $

  $

69,733 
54,407 
124,140 

  $

  $

— 
— 
— 

  $

  $

69,733 
54,407 
124,140  

Fair Value Measurements as of December 31, 2018
Total

Level 3

Level 2

Level 1

— 
— 
— 

  $

  $

57,739 
171,555 
229,294 

  $

  $

— 
— 
— 

  $

  $

57,739 
171,555 
229,294  

As of December 31, 2019 and 2018, the Company’s cash equivalents that are invested in money market funds 

and overnight repurchase contracts are valued based on Level 2 inputs. The Company measures the fair value of 
marketable securities using Level 2 inputs and primarily relies on quoted prices in active markets for similar 
marketable securities. Amortization and accretion of discounts and premiums are recorded in other income.

The Company had a term loan outstanding under its 2015 credit facility with MidCap Financial Funding XIII 

Trust and Silicon Valley Bank (the “2015 term loan”). On August 2, 2019, the Company entered into an amended 
and restated credit and security agreement with Silicon Valley Bank as agent, MidCap Financial Trust, and 
Flexpoint MCLS Holdings, LLC (collectively, the “Lenders”), providing for a term loan of $40.0 million (the “2019 
term loan”). The Company concurrently borrowed the $40.0 million term loan and used $7.7 million of the proceeds 
to repay the remaining amount owed on the 2015 term loan. The amount outstanding on the 2019 term loan is 
reported at its carrying value in the accompanying balance sheet as of December 31, 2019. The Company 
determined the fair value of the 2019 term loan using an income approach that utilizes a discounted cash flow 
analysis based on current market interest rates for debt issuances with similar remaining years to maturity, adjusted 
for credit risk. The 2019 term loan was valued using Level 2 inputs as of December 31, 2019. 

On May 2, 2017 the Company issued 3.375% convertible senior notes due 2024 (the “2024 Convertible 
Notes”) with embedded conversion features. The Company estimated the fair value of the 2024 Convertible Notes 
using a discounted cash flow approach to derive the value of a debt instrument using the expected cash flows and the 
estimated yield related to the convertible notes. The significant assumptions used in estimating the expected cash 
flows were: the estimated market yield based on an implied yield and credit quality analysis of a term loan with 
similar attributes, and the average implied volatility of the Company’s traded and quoted options available as of 
May 2, 2017. The Company recorded approximately $136.7 million as the fair value of the liability on May 2, 2017, 

100

 
 
 
 
 
 
 
 
   
  
   
  
   
  
   
  
   
   
   
   
 
 
 
 
 
   
   
   
 
   
      
      
      
  
   
   
   
   
 
with a corresponding amount recorded as a discount on the initial issuance of the 2024 Convertible Notes of 
approximately $64.5 million. The debt discount was recorded to equity and is being amortized to the debt liability 
over the life of the 2024 Convertible Notes using the effective interest method. 

The fair value of the 2024 Convertible Notes, which differs from their carrying value, is influenced by interest 

rates, stock price and stock price volatility and is determined by prices for the 2024 Convertible Notes observed in 
market trading. The market for trading of the 2024 Convertible Notes is not considered to be an active market and 
therefore the estimate of fair value is based on Level 2 inputs. The estimated fair value of the 2024 Convertible 
Notes, face value of $201.3 million, was $215.7 million at December 31, 2019.

5. Marketable Securities

As of December 31, 2019 and 2018, the fair value of available-for-sale marketable securities by type of 

security was as follows:

(In thousands)
Commercial paper
U.S. government obligations
Corporate bonds

(In thousands)
Commercial paper
U.S. government obligations
Corporate bonds

  Amortized Cost   
 $

6,189   $
29,950    
18,206    
54,345   $

 $

 $

  Amortized Cost    
 $

36,723   $
39,910   
94,999    
171,632   $

December 31, 2019

Gross Unrealized
Gains

Gross Unrealized
Losses

Fair Value

—   $
24    
38    
62   $

—   $
—    
—    
—   $

6,189 
29,974 
18,244 
54,407  

December 31, 2018

Gross Unrealized
Gains

Gross Unrealized
Losses

    Fair Value

—   $
—    
20    
20   $

—   $
(12)   
(85)   
(97)  $

36,723 
39,898 
94,934 
171,555  

As of December 31, 2019 and 2018, marketable securities consisted of approximately $54.4 million and 

$171.6 million, respectively, of investments that mature within 12 months. There were no investments with 
maturities greater than 12 months as of December 31, 2019 and December 31, 2018

6.

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following as of December 31, 2019 and 2018:

(in thousands)
Prepaid expenses
Deposits
Interest receivable on marketable securities

Total prepaid expenses and other current assets

December 31,

2019

2018

  $

  $

5,072    $
61     
238     
5,371    $

4,717 
66 
717 
5,500  

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7. 

Inventory

Inventory consisted of the following as of December 31, 2019 and 2018 :

(In thousands)
Raw materials
Work in process
Finished goods

Total inventories

December 31,

2019

2018

  $

  $

2,846    $
7,575     
6,108     
16,529    $

2,367 
3,553 
1,717 
7,637  

Finished goods manufactured by the Company have a shelf life of approximately 24 months from the date of 

manufacture. 

The Company reduces its inventory to net realizable value for potentially excess, dated or obsolete 
inventory based on an analysis of forecasted demand compared to quantities on hand and any firm purchase orders, 
as well as product shelf life. During the year ended December 31, 2019, the Company expensed $0.9 million to cost 
of sales for unabsorbed manufacturing and overhead costs related to the operation of the United Kingdom facility at 
Patheon UK Limited.  At December 31, 2019, the Company determined that no write-downs to inventory for 
potentially excess, dated or obsolete inventory were required.

8.

Property and Equipment, Net

Property and equipment, net, as of December 31, 2019 and 2018 consisted of the following:

(In thousands)
Computer and office equipment
Manufacturing equipment
Furniture and fixtures
Software
Leasehold improvements
Construction—in progress

Less: Accumulated depreciation

Total property and equipment, net

December 31,

2019

2018

 $

 $

1,184   $
12,147    
609    
455    
1,157    
6,077    
21,629    
(7,967)   
13,662   $

1,133 
12,000 
604 
434 
815 
1,416 
16,402 
(5,692)
10,710  

Depreciation expense for the years ended December 31, 2019, 2018 and 2017 was $1.1 million, $1.7 million, 

and $2.0 million, respectively. No property or equipment was disposed of during the years ended December 31, 
2019 and 2018. As of December 31, 2019, construction in progress consists primarily of equipment purchases 
related to the expansion of the Company’s manufacturing capabilities at its contract manufacturer, Patheon U.K. 
Limited.

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9.

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following as of December 31, 2019 and 2018:

(In thousands)
Research and development
Payroll and other employee-related expenses
Professional services fees
Accrued interest
Product revenue reserves
Accrual for employee stock purchase plan
Other

 $

Total accrued expenses and other current liabilities

 $

December 31,

2019

2018

1,924    $
8,748     
4,888     
1,356     
2,306     
183     
205     
19,610    $

1,216 
8,207 
2,544 
1,195 
616 
251 
281 
14,310  

10. Debt

Amended and Restated Credit and Security Agreement

Term Loan

On August 4, 2015, the Company entered into a credit and security agreement with MidCap Financial Trust, 

as agent, and MidCap Financial Funding XIII Trust and Silicon Valley Bank, as lenders, to borrow up to $30.0 
million in term loans. In August 2019 the Company terminated the credit and security agreement and paid off the 
remaining outstanding balance of principal and accrued and unpaid interest on the 2015 term loan, as well as the 
$2.7 million final payment. As a result, the Company recorded a debt extinguishment loss of $0.4 million primarily 
related to the write-off of the unamortized portion of the final payment and unamortized debt issuance costs, which 
have been recorded as a component of interest expense and other expense, respectively, on the statement of 
operations for the year ended December 31, 2019. 

On August 2, 2019, the Company entered into an amended and restated credit and security agreement (the 

“amended and restated credit and security agreement”) with Silicon Valley Bank as agent, MidCap Financial Trust, 
Flexpoint MCLS Holdings, LLC, and the other lenders from time to time party thereto (collectively, the “Lenders”), 
providing for a term loan of $40.0 million and a revolving credit facility of up to $20.0 million, both of which 
mature on January 1, 2024 (the “Maturity Date”). The Company concurrently borrowed the $40.0 million term loan 
and used $7.7 million of the proceeds to repay the remaining amount owed on the 2015 term loan. The revolving 
credit facility became available to us beginning January 1, 2020, and in February 2020, we drew down the $20.0 
million available.   

The Company granted the Lenders a security interest in substantially all of its personal property, rights and 
assets, other than intellectual property, to secure the payment of all amounts owed under the amended and restated 
credit and security agreement. The Company agreed not to encumber any of its intellectual property without the 
Lender’s prior written consent.

The amended and restated credit and security agreement contains certain representations, warranties, and 
covenants of the Company, including a minimum revenue covenant that will be in effect at any time the Company’s 
liquidity (defined as cash and cash equivalents held with Silicon Valley Bank) is below $80.0 million.  The revenue 
covenant is set annually and is based on the greater of a conservative percentage of that year’s approved forecast and 
modest growth over the trailing twelve months of actual .  The amended and restated credit and security agreement 
also has a material adverse event clause. If the revenue covenant becomes applicable and the Company fails to 
comply with it, or a material adverse change as defined in the agreement occurs, the amounts due under the amended 
and restated credit and security agreement could be declared immediately due and payable. As of December 31, 
2019, the Company was compliant with all covenants.

Borrowings under the 2019 term loan accrue interest monthly at a floating interest rate equal to the greater of 
the prime rate plus 1.5% or 6.5% per annum. Following an interest-only period of 18 months, principal is due in 36 
equal monthly installments commencing February 1, 2021 and ending on the Maturity Date. Upon the Maturity 

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Date, the Company will be obligated to pay a final payment equal to 4.75% of the total principal amounts borrowed 
under the facility. The final payment amount is being accreted to the carrying value of the debt using the straight-
line method, which approximates the effective interest method. As of December 31, 2019, the carrying value of the 
term loan was approximately $40.2 million, all of which is presented as long-term debt in the Company’s condensed 
consolidated balance sheet as of December 31, 2019.

The Company may prepay the term loan at any time by paying the outstanding principle balance, a final 
payment equal to 4.75% of the term loan amount, all accrued interest and a prepayment fee of 3% of the outstanding 
term loan amount if repaid in the first year, 2% of the outstanding term loan amount if repaid in the second year, and 
1% of the outstanding term loan amount if repaid in the third year of the loan; no prepayment fee is required 
thereafter.

Revolving Credit Facility

Borrowings under the revolving credit facility accrue interest monthly at a floating interest rate equal to the 

greater of the prime rate or 5.50% per annum. In addition to paying interest on any amounts borrowed under the 
revolving credit facility, the Company owes an unused revolving line facility fee equal to 0.25% per annum of the 
average unused portion of the revolving line.  multiplied by the difference between the total amount available to be 
borrowed (the “Revolver Commitment Amount”) of $20.0 million and the greater of the average outstanding 
revolver balance and 25% of the Commitment Amount. The revolving credit facility and any related fees or interest 
payments was made available to the Company beginning January 1, 2020, after certain conditions imposed by the 
Lenders, were met, including an initial borrowing limitation of up to $10.0 million until the Lenders completed an 
audit of certain collateral accounts.  

Beginning on January 1, 2020, if the interest payment on the revolving credit facility is less than the amount 
of interest that would have been payable had the Company borrowed 25% of the Revolver Commitment Amount, 
then the Company will be required to pay the difference.

The Company may retire the revolving credit facility early, at any time, by paying the outstanding principal 
balance, all accrued interest and a termination fee equal to 2% of the Revolving Commitment Amount if repaid in 
the first year, and 1% of the Revolving Commitment Amount if repaid in the second year; with no termination fee 
thereafter.

As of December 31, 2019, annual principal and interest payments due under the 2019 term loan are as 

follows: 

Year
2020
2021
2022
2023
2024

Total
Less interest
Less unamortized portion of final payment
Total

Aggregate
Minimum
Payments
(in thousands)

2,736 
14,611 
14,816 
13,903 
3,018 
49,084 
(7,182)
(1,726)
40,176  

  $

  $

2024 Convertible Notes

On May 2, 2017 the Company issued an aggregate of $201.3 million principal amount of the 2024 Convertible 

Notes. The 2024 Convertible Notes have a maturity date of May 1, 2024, are unsecured and accrue interest at a rate 
of 3.375% per annum, payable semi-annually on May 1 and November 1 of each year, beginning November 1, 2017. 

104

 
 
 
   
   
   
   
   
   
   
 
The Company received $194.8 million in proceeds for the sale of the 2024 Convertible Notes, after deducting fees 
and expenses of $6.5 million.  

Upon conversion of the 2024 Convertible Notes, at the election of each holder of a 2024 Convertible Note (the 
“Holder”), the note will be convertible into cash, shares of the Company’s common stock, or a combination thereof, 
at the Company’s election (subject to certain limitations in the 2015 term loan), at a conversion rate of 
approximately 37.3413 shares of common stock per $1,000 principal amount of the 2024 Convertible Notes, which 
corresponds to an initial conversion price of approximately $26.78 per share of the Company’s common stock.

The conversion rate is subject to adjustment from time to time upon the occurrence of certain events, 

including, but not limited to, fundamental change events and certain corporate events that occur prior to the maturity 
date of the notes.  In addition, if the Company delivers a notice of redemption, the Company will increase, in certain 
circumstances, the conversion rate for a Holder who elects to convert its notes in connection with such a corporate 
event or notice of redemption, as the case may be. At any time prior to the close of business on the business day 
immediately preceding February 1, 2024, Holders may convert all, or any portion, of the 2024 Convertible Notes at 
their option only under the following circumstances: 

(1) during any calendar quarter commencing after the calendar quarter ending on June 30, 2017 (and only 

during such calendar quarter), if the last reported sale price of the Company’s common stock for at least 20 
trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last 
trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the 
conversion price on each applicable trading day; 

(2) during the five business day period after any ten consecutive trading day period (the “measurement 
period”) in which the trading price per $1,000 principal amount of notes for each trading day of the 
measurement period was less than 98% of the product of the last reported sale price of the Company’s 
common stock and the conversion rate on each such trading day; 

(3) if the Company calls any or all of the notes for redemption, at any time prior to the close of business on the 

business day immediately preceding the redemption date; and 

(4) upon the occurrence of specified corporate events. 

On or after February 1, 2024, until the close of business on the business day immediately preceding the 

maturity date, Holders may convert their notes at any time, regardless of the foregoing circumstances.  The 
Company may redeem, for cash, all or any portion of the 2024 Convertible Notes, at its option, on or after May 6, 
2020 if the last reported sale price of the Company’s common stock has been at least 130% of the conversion price 
for at least 20 trading days during any 30 consecutive day trading period, at a redemption price equal to 100% of the 
principal amount of the 2024 Convertible Notes to be redeemed, plus accrued and unpaid interest, subject to the 
Holders’ right to convert as described above.

The 2024 Convertible Notes are considered convertible debt with a cash conversion feature.  Per ASC 

470-20, Debt with Conversion and Other Options, the Company has separated the convertible debt into 
liability and equity components based on the fair value of a similar debt instrument excluding the embedded 
conversion option.  The carrying amount of the liability component was calculated by measuring the fair value of a 
similar liability that does not have an associated convertible feature. The allocation was performed in a manner that 
reflected our non-convertible debt borrowing rate for similar debt. The equity component of the 2024 Convertible 
Notes was recognized as a debt discount and represents the difference between the proceeds from the issuance of the 
2024 Convertible Notes and the fair value of the liability of the 2024 Convertible Notes on their respective dates of 
issuance. The excess of the principal amount of the liability component over its carrying amount (“debt discount”) is 
amortized to interest expense using the effective interest method over seven years. The equity component is not re-
measured as long as it continues to meet the conditions for equity classification.  The liability component of 
$136.7 million was recorded as long-term debt at May 2, 2017 with the remaining equity component of $64.5 
million recorded as additional paid-in capital.  

In connection with the issuance of the 2024 Convertible Notes, the Company incurred approximately $6.5 
million of debt issuance costs, which primarily consisted of underwriting, legal and other professional fees, and 
allocated these costs to the liability and equity components based on the allocation of the proceeds. Of the total debt 

105

issuance costs, $4.4 million were allocated to the liability component and are recorded as a reduction of the 2024 
Convertible Notes in our consolidated balance sheets. The remaining $2.1 million was allocated to the equity 
component and is recorded as a reduction to additional paid-in capital.      

Debt discount and issuance costs of $68.9 million are being amortized to interest expense over the life of 

the 2024 Convertible Notes using the effective interest rate method. As of December 31, 2019, the stated interest 
rate was 3.375%, and the effective interest rate was 9.71%. Interest expense related to the 2024 Convertible 
Notes for the year ended December 31, 2019 was $14.7 million, including $8.0 million related to amortization of the 
debt discount.

The table below summarizes the carrying value of the 2024 Convertible Notes as of December 31, 2019:

  $

Gross proceeds
Portion of proceeds allocated to equity component
    (additional paid-in capital)
Debt issuance costs
Portion of issuance costs allocated to equity
    component (additional paid-in capital)
Amortization of debt discount and debt issuance costs  
Carrying value 2024 Convertible Notes

  $

(in thousands)

201,250 

(64,541)
(6,470)

2,075 
21,099 
153,413  

11.

Stockholders’ Equity

On February 17, 2014, the Company filed an amended and restated Certificate of Incorporation (the “Restated 

Certificate”) in connection with the closing of the Company’s initial public offering. As of December 31, 2019, 
under the Restated Certificate, the Company is authorized to issue 10,000,000 shares of preferred stock with a par 
value of $0.001 per share.

On June 7, 2016, the Company completed a follow-on public offering of its common stock, which resulted in 
the sale of 5,900,000  shares of the Company’s common stock at a price to the public of $14.00 per share including 
shares sold pursuant to the exercise in full of the underwriters’ option to purchase additional shares.

On November 15, 2016, the Company completed a follow-on public offering of its common stock, which 
resulted in the sale of 4,140,000 shares of the Company’s common stock at a price to the public of $18.00 per share 
including shares sold pursuant to the exercise in full of the underwriters’ option to purchase additional shares.

On October 16, 2017, the Company completed a follow-on public offering of its common stock, which 
resulted in the sale of 5,520,000 shares of the Company’s common stock at a price to the public of $25.50 per share 
including shares sold pursuant to the exercise in full of the underwriters’ option to purchase additional shares.

Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the 

Company’s stockholders. Common stockholders are entitled to receive dividends, as may be declared by the board 
of directors, if any, subject to the preferential dividend rights of any holders of Preferred Stock. As of December 31, 
2019, no dividends have been declared.

12.

Stock Plans

2013 Equity Incentive Plan

On January 27, 2014, the Company’s stockholders approved the 2013 Equity Incentive Plan (the “2013 
Plan”), which became effective on February 11, 2014, the date of execution of the underwriting agreement pursuant 
to which the Company’s common stock was priced for its initial public offering. Prior to the effective date of the 
2013 Plan, the Company granted stock-based awards pursuant to the 2009 Stock Incentive Plan (the “2009 Plan), 
which had similar features to the 2013 Plan. The 2013 Plan provides for the grant of incentive stock options 
(“ISOs”), non-statutory stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards, 
performance-based stock awards, and other forms of equity compensation. Initially, the maximum number of shares 
of the Company’s common stock that may be issued pursuant to stock awards under the 2013 Plan was 2,337,616, 

106

 
 
 
 
 
 
 
 
 
 
 
 
which is the sum of (i) 1,230,012 shares, plus (ii) the number of shares remaining available for grant under the 2009 
Plan, plus (iii) any shares subject to outstanding stock options or other stock awards that would have otherwise 
returned to the 2009 Plan (such as upon the expiration or termination of a stock award prior to vesting). 
Additionally, the number of shares of common stock reserved for issuance under the 2013 Plan automatically 
increases on January 1 of each year, beginning on January 1, 2015 and continuing through and including January 1, 
2023, by 4% of the total number of shares of the Company’s capital stock outstanding on December 31 of the 
preceding calendar year, or a lesser number of shares determined by the board of directors. The maximum number 
of shares that may be issued upon the exercise of ISOs under the 2013 Plan is 4,684,989 shares.  

On September 11, 2017, the Company’s compensation committee approved an amendment to the 2013 Plan to 

reserve an additional 1,500,000 of the Company’s common stock to be used exclusively for grants of inducement 
awards to individuals who were not previously employees or non-employee directors of the Company (or following 
a bona fide period of non-employment with the Company).

As of December 31, 2019, 3,073,933 shares were available for future issuance under the 2013 Plan. As of 
December 31, 2019, there were 236,187 options outstanding under the 2009 Plan and 4,531,754 options outstanding 
under the 2013 Plan, including 839,560 shares underlying outstanding stock options granted as inducement awards 
under the 2013 Plan.

Employee Stock Purchase Plan

On January 27, 2014, the Company’s stockholders approved the Employee Stock Purchase Plan. A total of 
209,102 shares of common stock were reserved for issuance under this plan. The Employee Stock Purchase Plan 
became effective on February 11, 2014, the date of execution of the underwriting agreement pursuant to which the 
Company’s common stock was priced for its initial public offering. During the years ended December 31, 2019 and 
2018, 184,860 and 138,405 shares, respectively, were purchased by employees under the plan. Additionally, the 
number of shares of common stock reserved for issuance under the Employee Stock Purchase Plan automatically 
increases on January 1 of each year, beginning on January 1, 2015 and continuing through and including January 1, 
2023, by 1% of the total number of shares of the Company’s capital stock outstanding on December 31 of the 
preceding calendar year, or a lesser number of shares determined by the board of directors.

13.

Stock-Based Compensation

Stock Options

During the years ended December 31, 2019, 2018 and 2017, the Company granted stock options for the 
purchase of 1,099,450, 1,127,263, and 1,448,100 shares of common stock, respectively, to certain employees, two 
non-employees and directors. The vesting conditions for most of these awards are time-based, and the awards vest 
25% after one year and monthly thereafter for the next 36 months, except for annual option grants to non-employee 
directors of the Company whose initial grants vest 25% after one year and monthly thereafter for the next 24 months 
and whose annual grants vest in equal monthly installments during the 12-month period following the grant date, 
pursuant to the Company’s Non-Employee Director Compensation Policy. Options granted have a maximum term of 
up to 10 years. 

Stock Option Valuation

The fair value of each stock option grant is estimated on the date of grant using the Black-Scholes option-

pricing model. Prior to February 2014, the Company was privately held with a limited operating history and 
accordingly it utilized data from representative peer companies to estimate expected stock price volatility from its 
inception to its initial public offering.  The Company selected peer companies from the biopharmaceutical industry 
with similar characteristics as the Company, including stage of product development, market capitalization and 
therapeutic focus. Since its initial public offering in February 2014, the Company has continued to use volatility data 
from a representative peer group to estimate expected stock price volatility and expects to continue to do so until 
such time as it has adequate historical data regarding the volatility of its own traded stock price for a period of time 
that is commensurate with the expected term (in years) of the Company’s stock options. Starting in 2020, we will 

107

use our own volatility as it will have been six years since our IPO. The expected term of the Company’s stock 
options has been determined utilizing the “simplified” method for awards that qualify as “plain vanilla” options. The 
expected term of stock options granted to non-employees is equal to the contractual term of the option award. The 
risk-free interest rate is determined by reference to the U.S. Treasury yield curve in effect at the time of grant of the 
award for time periods approximately equal to the expected term of the award. Expected dividend yield is based on 
the fact that the Company has never paid cash dividends and does not expect to pay any cash dividends in the 
foreseeable future. The relevant data used to determine the value of the stock option grants for the years ended 
December 31, 2019, 2018 and 2017 is as follows:

Risk-free interest rates
Expected dividend yield
Expected term (in years)
Expected volatility

2019

1.42% - 2.67% 
0.00% 
6.0 
66.2% - 69.5% 

December 31,
2018

2.67% - 3.06% 
0.00% 
6.0 
69.8% - 75.3% 

2017

1.97% - 2.29% 
0.00% 
6.0 
69.9% - 72.8%  

The following table summarizes stock option activity for the year ended December 31, 2019:

 (In thousands, except per share amounts)
Outstanding as of December 31, 2018
Granted
Exercised
Cancelled
Outstanding as of December 31, 2019
Options vested and expected to vest at December 31, 2019
Options exercisable at December 31, 2019

Shares Issuable
Under Options    
  $
4,435 
1,099 
  $
(154)   $
(605)   $
  $
4,775 

4,775 

  $

2,973 

  $

Weighted Average
Exercise Price

19.21 
13.53 
12.09 
20.31 
17.99 

17.99 

18.34  

The aggregate intrinsic value of options is calculated as the difference between the exercise price of the options 
and the fair value of the Company’s common stock for those options that had exercise prices lower than the fair value 
of the Company’s common stock. A total of 153,754, 165,684, and 308,011 options were exercised during the years 
ended December 31, 2019, 2018 and 2017, respectively. The aggregate intrinsic value of stock options exercised was 
$0.9 million, $2.3 million, and $2.9 million for the years ended December 31, 2019, 2018 and 2017, respectively.

At December 31, 2019, 2018 and 2017, the Company had options for the purchase of 4,774,691, 4,435,056, 

and 3,799,965 shares of common stock outstanding, with a weighted average remaining contractual term of 6.9, 7.6, 
and 8.0 years, respectively, and with a weighted average exercise price of $17.99, $19.21, and $17.75 per share, 
respectively. At December 31, 2019, 2018 and 2017 there were options for the purchase of 2,973,000, 2,368,955, 
and 1,688,652 shares of common stock exercisable under these stock option awards, with a weighted average 
remaining contractual life of 6.1, 6.6, and 6.8 years, respectively, and an aggregate intrinsic value of $9.8 million, 
$2.6 million, and $17.0 million, respectively.

The weighted average grant date fair value of options granted during the years ended December 31, 2019, 

2018 and 2017 was $8.55, $15.12, and $14.33, respectively.

Restricted Stock Units 

On January 4, 2016, the Company granted 189,300 restricted stock units, (“RSUs”), with performance and 

time-based vesting conditions to certain executives. These RSUs began vesting, and the underlying shares of 
common stock became deliverable, beginning when ZILRETTA was approved (the “Milestone”).  The number of 
shares eligible for vesting varied based on the timing of achieving the Milestone. As a result of the Milestone being 
achieved on October 6, 2017, the number of shares of the Company’s common stock earned under these awards was 
122,800, subject to ongoing employment with the Company for a period of two years. The 122,800 shares had an 
approximate value of $2.2 million as of the original grant date of which $1.6 million was recognized in the fourth 
quarter of 2017 upon achieving the Milestone and the remaining $0.6 million will be recognized over a period of 
two years. 

108

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
   
   
   
   
   
   
   
During the year ended December 31, 2019, the Company awarded 873,481 RSUs to employees at an average 
grant date fair value of $14.51 per share. The RSUs vest in four substantially equal installments on each of the first 
four anniversaries of the vesting commencement date, subject to the employee’s continued employment with, or 
services to, the Company on each vesting date. Compensation expense is recognized on a straight-line basis.

The following table summarizes the RSU activity for the year ended December 31, 2019:

 (In thousands, except per share amounts)
Nonvested balance as of December 31, 2018
Granted
Cancelled
Vested/Released
Nonvested balance as of December 31, 2019

Stock-based Compensation

Number of Shares  

252 
873 
(186)
(86)
853 

Weighted Average
Grant Date Fair 
Value Per Share  
22.25 
14.51 
21.07 
15.86 
15.84  

  $

  $

The Company recorded stock-based compensation expense related to stock options, restricted stock and shares 

purchased under the Employee Stock Purchase Plan for the years ended December 31, 2019, 2018 and 2017 as 
follows:

(In thousands)
Research and development
Selling, general and administrative
Total

Year Ended December 31,
2018

2017

2019

  $

  $

5,211 
10,690 
15,901 

 $

 $

4,728 
10,731 
15,459 

 $

 $

3,979 
7,563 
11,542  

As of December 31, 2019, unrecognized stock-based compensation expense for stock options outstanding was 

$18.4 million which is expected to be recognized over a weighted average period of 2.2 years. As of December 31, 
2019, unrecognized stock-based compensation expense for RSUs outstanding was $10.5 million which is expected 
to be recognized over a period of 2.9 years. 

14. Commitments and Contingencies

Operating Leases

Burlington Lease

In May 2013, the Company entered into a lease for office space in Burlington, Massachusetts (the “Lease”). 
The term of the Lease was for 42-months with minimum monthly lease payments beginning at $17,588 per month 
and escalating over the term of the Lease. In July 2015, the Company amended the Lease to add approximately 
4,700 square feet of additional office space, with the option to lease an additional 5,400 square feet in the same 
building in Burlington, Massachusetts. In addition, at the time, the Company leased approximately 6,700 square feet 
of temporary space for use prior to delivery of the additional space. This amendment also extended the term of the 
Lease through October 31, 2019. On September 30, 2015, the Company exercised its option for the additional 5,400 
square feet of office space. On September 21, 2016, the Company entered into another amendment to extend the 
Lease for the 6,700 square feet of temporary space until October 31, 2017.

On April 7, 2017, the Company further amended the Lease to extend the term to October 31, 2023 on the then-
existing office space, including the temporary space, consisting of approximately 28,600 square feet of office space 
in Burlington, Massachusetts. From November 2016 through October 2017, the Company’s lease payment for this 
space was approximately $80,000 per month. Also, as part of this amendment to the Lease, the Company leased an 
additional 1,471 square feet of office space beginning in 2018. The lease payment for the 1,471 square feet of office 
space is approximately $4,100 per month.

109

 
 
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
   
  
  
 
On October 6, 2017, the Company exercised its option for an additional 6,450 square feet of space, and the 

term for the space commenced in April 2018. The Company had approximately 36,500 square feet of office space in 
Burlington, Massachusetts under a lease term expiring on October 31, 2023. Starting in December 2017, the 
Company’s minimum monthly lease payment is approximately $87,000 and it increases over the life of the amended 
Lease. In addition to the base rent for the office space, which increases over the term of the amended Lease, the 
Company is responsible for its share of operating expenses and real estate taxes.

In June 2019, the Company amended the Lease to add approximately 5,330 square feet of additional office 

space and extend the term of the Lease through April 30, 2025 (the “Amended Lease”). As a result of the Amended 
Lease, the total rentable floor area is 41,873 square feet. Starting in August 2019, the Company’s minimum monthly 
lease payment is approximately $108,000. which increases over the term of the Amended Lease. In addition to the 
base rent for the office space, the Company is responsible for its share of operating expenses and real estate taxes. 
The lease commencement date for the additional space, which represents the date the Company first had access to 
the space, was July 1, 2019. The Company accounted for the Amended Lease as a lease modification that is a 
separate contract from the original lease and recorded an incremental right-of-use asset and lease liability of $2.5 
million, which represents the present value of the lease payments relating to the new space, as well as the lease 
payments relating to the 18-month extension of the existing space, as of the modification date, discounted at 6.8%.     

The straight-line lease cost for the Amended Lease (including the expense relating to the original Lease) 

amounted to $1.6 million for the year ended December 31, 2019, respectively, and was included in operating 
expenses. As of December 31, 2019, the remaining lease term on the Amended Lease was 5.3 years, which includes 
the 18-month extension resulting from the amendment signed in June 2019.

Woburn Lease

In February 2017, the Company entered into a five-year lease for laboratory space located in Woburn, 
Massachusetts with a monthly lease payment of approximately $15,000, which increases over the term of the lease, 
plus a share of operating expenses. The total cash obligations for the term of the lease are approximately $0.9 
million.

Upon adoption of ASU 2016-02, the Company recorded a right-of-use asset and corresponding lease liability 

for the Lease on January 1, 2019, by calculating the present value of lease payments, discounted at 8.4%, the 
Company’s estimated incremental borrowing rate, over the 3.2-year remaining term.  The Woburn lease includes an 
option to extend the term of the lease for two years. Since the Company adopted ASU 2016-02 using the 
Comparatives under 840 approach, it did not reassess the determination of its operating leases as leases, and 
therefore no options to extend the lease were included in the calculation of the lease liability as of December 31, 
2019. The straight-line lease cost for the Woburn lease amounted to $0.2 million for the year ended December 31, 
2019, respectively, and was included in operating expenses. As of December 31, 2019, the remaining lease term on 
the Woburn lease was 2.2 years.

The Company incurred operating lease costs of $2.0 million, $1.1 million, and $1.0 million for the years 

ended December 31, 2019, 2018 and 2017, respectively.

Manufacturing and Supply Agreement with Patheon U.K. Limited

In July 2015, the Company and Patheon U.K. Limited (“Patheon”) entered into a Manufacturing and Supply 

Agreement (the “Manufacturing Agreement”) and Technical Transfer and Service Agreement (the “Technical 
Transfer Agreement”) for the manufacture of ZILRETTA.

Patheon agreed in the Technical Transfer Agreement to undertake certain transfer activities and construction 

services needed to prepare Patheon’s United Kingdom facility for the commercial manufacture of ZILRETTA in 
dedicated manufacturing suites. The Company provided Patheon with certain equipment and materials necessary to 
manufacture ZILRETTA and pays Patheon a monthly fee for such activities and reimburses Patheon for certain 
material, equipment and miscellaneous expenses and additional services.

110

The initial term of the Manufacturing Agreement is 10 years from approval by the FDA of the Patheon 
manufacturing suites for ZILRETTA, or until October 6, 2027. The Company pays a monthly base fee to Patheon 
for the operation of the manufacturing suites and a per product fee for each vial based upon a forecast of commercial 
demand. The Company also reimburses Patheon for purchases of materials and equipment made on its behalf, 
certain nominal expenses and additional services. The Manufacturing Agreement will remain in full effect unless 
and until it expires or is terminated. Upon termination of the Manufacturing Agreement (other than termination by 
Flexion in the event that Patheon does not meet the construction and manufacturing milestones or for a breach by 
Patheon), Flexion will be obligated to pay for the costs incurred by Patheon associated with the removal of our 
manufacturing equipment and for Patheon’s termination costs up to a capped amount.

The Manufacturing Agreement with Patheon contains an operating lease for the use of dedicated 

manufacturing suites. With the adoption of ASU 2016-02, the Company recorded a right-of-use asset and 
corresponding lease liability for the operating lease.

In June 2019, the Company and Patheon amended the Manufacturing Agreement and the Technical 

Transfer Agreement. The amendment primarily modifies the compensation structure, which is comprised of base 
fees and per product fees the Company pays to Patheon and does not result in any additional rights of use. The 
Company accounted for the amendment as a lease modification that is not a separate contract from the original lease. 
As part of the modification, the Company reassessed whether the contract is or contains a lease and determined that 
there is an operating lease component for the use of dedicated manufacturing suites. The remainder of the 
consideration is allocated to the service component. The Company also reassessed the lease liability by calculating 
the present value of the remaining lease payments as of the modification date, discounted at 6.1%. The modification 
resulted in an increase to each of the lease liability and right of use asset of $0.5 million.

As of December 31, 2019, the remaining lease term on the Patheon lease was 7.8 years. The straight-line 

lease cost amounted to $204 thousand for the year ended December 31, 2019, respectively, and is included in 
inventory as part of manufacturing overhead.

The components of lease expense and related cash flows were as follows:

(In thousands)
Operating lease cost
Operating lease cost included in operating expenses
Operating lease cost included in inventory
Total operating lease cost

Operating cash flows from operating leases

Year ended December 31, 2019

$

1,765 
204 
1,969 

2,363  

111

 
   
 
 
   
 
   
 
 
 
 
 
  
 
Maturities of lease liability due under these lease agreements as of December 31, 2019 were as follows:

Year
2020
2021
2022
2023
2024
Thereafter
Present value imputed interest
Present value of lease payments

Aggregate
Minimum
Payments
(in thousands)

1,987 
2,035 
1,879 
1,888 
1,929 
1,221 
(2,531)
8,408  

  $

As of December 31, 2018, future minimum lease payments under the Company’s lease obligations under ASC 840 
were as follows:

Year
2019
2020
2021
2022
2023
Total

Aggregate
Minimum
Payments
(in thousands)

1,491 
1,533 
1,576 
1,447 
1,203 
7,250  

$

As of December 31, 2018, future minimum payments under the Company’s agreed obligations under the 

Manufacturing Agreement with Patheon are as follows:

Aggregate
Minimum
Payments
(in thousands)  
8,027 
8,027 
8,027 
8,027 
8,027 
30,102 
70,237  

  $

Year
2019
2020
2021
2022
2023
2024 and thereafter
Total

112

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
Other Commitments and Contingencies

Evonik Supply Agreement

In November 2016, the Company entered into a Supply Agreement with Evonik Corporation (“Evonik”) for 

the purchase of PLGA which is used in the manufacturing of potential clinical and commercial supply of 
ZILRETTA.  Pursuant to the Supply Agreement, Flexion is obligated to submit rolling monthly forecasts to Evonik 
for PLGA supply, a portion of which will constitute binding orders. In addition, Flexion agreed to certain minimum 
purchase requirements and which do not apply (i) during periods in which Evonik is in material breach of the Supply 
Agreement or is unable to perform its obligations due to a force majeure event, (ii) with respect to orders that 
Evonik is unable to supply in excess of binding orders, (iii) for orders Evonik is unable to timely deliver or does not 
deliver conforming product and provides a credit for such order, or (iv) during an uncured material quality failure by 
Evonik. Flexion agreed to purchase PLGA batches at a specified price per gram in U.S. dollars, subject to 
adjustment from time to time, including due to changes in price indices and in the event the initial term of the 
Supply Agreement is extended. The total term of the agreement is five years. Upon termination of the Supply 
Agreement (other than termination due to the expiration of the term of the agreement or due to bankruptcy of either 
Evonik or Flexion), Flexion is obligated to pay the costs associated with the binding supply forecast provided to 
Evonik.  The Supply Agreement will renew for two successive two-year terms upon mutual written consent by both 
parties.

Southwest Research Institute License Agreement

On July 25, 2014, the Company entered into an exclusive worldwide license agreement with Southwest 
Research Institute (“SwRI”) with respect to the use of SwRI’s proprietary microsphere manufacturing technologies 
for certain steroids formulated with PLGA, including ZILRETTA. Under the agreement, the Company paid an 
upfront fee of $120,000 to SwRI.  In February 2017, Flexion executed an agreement with SwRI to transfer 
manufacturing equipment to SwRI in consideration for SwRI deeming the additional milestone payment to have 
been fully paid by Flexion.

FX201 Related Agreement  

In December 2017, we entered into a definitive agreement with GeneQuine to acquire the global rights to 

FX201. As part of the asset purchase transaction with GeneQuine, we made an upfront payment to GeneQuine of 
$2.0 million.  In 2018, we paid GeneQuine $750,000 for the milestone of initiating a GLP toxicology study of 
FX201. In addition, we paid GeneQuine a $750,000 payment in November 2019 following the FDA acceptance of 
the IND application for FX201.  This milestone was recognized as research and development expense in the fourth 
quarter of 2019.  The next milestone of $2.5 million was achieved in March 2020 when the first patient was treated 
in the Phase 1 clinical trial.  We may also be required to make additional milestone payments during the 
development of FX201, including up to $4.5 million through the Phase 2 PoC, clinical trial and, following 
successful PoC, up to an additional $51.5 million in development and global regulatory approval milestone 
payments. The transaction was accounted for as an asset acquisition, as it did not qualify as a business combination.  
The upfront fee was attributed to the intellectual property acquired and recognized as research and development 
expense in December 2017 as the FX201 rights had not been commercially approved and have no alternative future 
use. The milestone payment for the GLP toxicology study was also recorded to research and development expense 
in the fourth quarter of 2018. Future milestone payments earned prior to regulatory approval of FX201 would be 
recognized as research and development expense in the period when the milestone events become probable of being 
achieved. Future milestones earned upon regulatory approval would be recognized as an intangible asset and 
amortized to expense over its estimated life.  As part of the transaction with GeneQuine, we became the direct 
licensee of certain underlying Baylor College of Medicine (Baylor) patents and other proprietary rights related to 
FX201 for human applications.  The Baylor license agreement grants us an exclusive, royalty-bearing, world-wide 
right and license (with a right to sublicense) for human applications under its patent and other proprietary rights 
directly related to FX201, with a similar non-exclusive license to certain Baylor intellectual property rights that are 
not specific to FX201.  The license agreement with Baylor includes a low single-digit royalty on net sales of FX201 

113

and requires us to use reasonable efforts to develop FX201 according to timelines set out in the license agreement.  
In December 2017, we also entered into a Master Production Services Agreement with SAFC Carlsbad, Inc., a part 
of MilliporeSigma, for the manufacturing of preclinical and initial clinical supplies of FX201.

FX301 Related Agreements

In September 2019, the Company acquired from Xenon, the global rights to develop and commercialize 

Xenon’s NaV1.7 inhibitor, funapide,formulated for extended release with a novel, Flexion proprietary 
thermosensitive hydrogel under the Company’s preclinical program known as FX301. As part of the asset purchase 
transaction with Xenon, the Company made an upfront payment to Xenon of $3.0 million.  The Company may also 
be required to make additional milestone payments during the development of FX301, including up to $9.0 million 
through initiation of a Phase 2 proof of concept (PoC) clinical trial and, following successful PoC, up to 
$40.8 million in development and global regulatory approval milestone payments and up to an additional 
$75.0 million in sales-related milestone payments. The transaction was accounted for as an asset acquisition, as it 
did not qualify as a business combination.  The upfront fee was attributed to the intellectual property acquired and 
recognized as research and development expense in September 2019 as the FX301 product candidate had not been 
commercially approved and had no alternative future use. Future milestone payments earned prior to regulatory 
approval of FX301 will be recognized as research and development expense in the period when the milestone events 
become probable of being achieved. Future milestones earned subsequent to regulatory approval will be recognized 
as an intangible asset and amortized to expense over the estimated life of FX301. As of December 31, 
2019, no milestones under the arrangement had been achieved. As part of the transaction, the Company became the 
direct licensee of certain underlying Xenon patents and other proprietary rights related to funapide for human 
applications.  The Xenon agreement grants the Company an exclusive, royalty-bearing, world-wide right and license 
(with a right to sublicense) for human applications under its patents directly related to funapide, with a similar 
royalty-free license to other Xenon proprietary rights directly related to funapide. The agreement with Xenon 
includes a tiered royalty ranging from mid-single digits to low double digits that is based on aggregate annual net 
sales of FX301 and requires the Company to use reasonable efforts to develop FX301 according to timelines set out 
in the agreement.  

15. Net Loss Per Share

Basic and diluted net loss per share attributable to common stockholders was calculated as follows for the 

years ended December 31, 2019, 2018 and 2017:

(In thousands)
Numerator:
Net loss

Net loss:

Denominator:

Year ended December 31,
2018

2017

2019

  $
  $

(149,773)   $
(149,773)   $

(169,659)   $
(169,659)   $

(137,481)
(137,481)

Weighted average common shares outstanding, basic
   and diluted

Net loss per share, basic and diluted

38,086 

37,751 

  $

(3.93)   $

(4.49)   $

33,027 

(4.16)

The following common stock equivalents were excluded from the calculation of diluted net loss per share as 

including them would have an anti-dilutive effect: 

Shares issuable upon conversion of the 2024 convertible notes
Stock Options
Restricted Stock Units

Year ended December 31,
2018

2017

2019

7,515 
4,988 
802 
13,305 

7,515 
4,498 
266 
12,279 

5,017 
3,602 
147 
8,766  

114

       
 
 
 
 
 
 
 
 
 
   
  
   
  
   
  
   
  
   
  
   
  
   
   
   
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
 
   
   
   
16.

Income Taxes 

The Company has generated losses since inception.  Accordingly, there is no US tax provision or benefit for 

the years ended December 31, 2019, 2018 and 2017, respectively. 

A reconciliation of the U.S. federal statutory income tax rate to the Company’s effective income tax rate is as 

follows:

Federal statutory income tax rate

State taxes, net of federal benefit
Federal and state research and development tax credits
Change in deferred tax asset valuation allowance
Tax rate change
Other

Effective income tax rate

The Company’s net deferred tax assets consisted of the following:

Year Ended December 31,
2018

2017

2019

21.0%   
(0.2)    
1.0 
(22.2)    
1.7 
(1.3)    
—%   

21.0%   
8.0 
1.0 
(27.4)    
(1.9)    
(0.7)    
—%   

34.0%
3.0 
0.9 
(11.6)
(25.1)
(1.2)
—%

Net operating loss carryforwards
Research and development tax credit carryforwards
Accruals and other temporary differences
Debt discount
Right of use asset
Capitalized research and development expenses, net

Total deferred tax assets

Valuation allowance

Net deferred tax asset

December 31,

2019

2018

  $

  $

101,356    $
12,096     
10,873     
(11,156)   
(2,042) 
43,442     
154,569     
(154,569)   
—    $

76,723 
9,965 
7,808 
(14,165)
— 
41,048 
121,379 
(121,379)
—  

As of December 31, 2019, the Company had federal and state net operating loss (“NOL”) carryforwards of 

approximately $404.3 million and $300.0 million, respectively, which begin to expire in 2029 for federal purposes 
and in 2030 for state purposes. Approximately $214.8 million of the federal NOLs have an indefinite carryforward. 
In addition, the Company had federal and state research and development tax credit carryforwards of 
approximately  $8.6 million and $4.3 million, respectively, available to reduce future tax liabilities, which begin to 
expire in 2029 for federal purposes and 2025 for state purposes. Management of the Company has evaluated the 
positive and negative evidence bearing upon the realizability of its deferred tax assets, which are comprised 
principally of NOL carryforwards and capitalized research and development expenses. Management has considered 
the Company’s history of cumulative net losses incurred since inception and determined that it is more likely than 
not that the Company will not realize the benefits of its deferred tax assets. As a result, a full valuation allowance 
has been established at December 31, 2019, 2018 and 2017.

Section 382 of the Internal Revenue Code of 1986, as amended (“Section 382”), contains rules that limit the 
ability of a company that undergoes an ownership change to utilize its NOLs, and tax credits existing as of the date 
of such ownership change. Under the rules, such an ownership change is generally any change in ownership of more 
than 50% of a company’s stock within a rolling three-year period. The rules generally operate by focusing on 
changes in ownership among stockholders considered by the rules as owning, directly or indirectly, 5% or more of 
the stock of a company and any change in ownership arising from new issuances of stock by the company. The 
Company has experienced multiple ownership changes since its inception, however, based on the annual limitations 
calculated at each ownership change date, substantially all NOL carryforwards will be available to offset future 
taxable income.  Approximately $0.3 million of NOLs will expire unused. Future ownership changes as defined by 
Section 382 may further limit the amount of NOL carryforwards that could be utilized annually to offset future 
taxable income. 

115

 
 
 
 
 
 
 
 
 
 
 
 
  
   
  
   
   
  
  
   
  
 
 
 
 
 
 
 
   
 
   
   
   
   
   
   
   
Changes in the valuation allowance for deferred tax assets during the years ended December 31, 2019, 2018 

and 2017 were as follows:

Valuation allowance as of beginning of year

Decreases recorded as benefit to income tax provision
Decreases recorded as benefit to equity
Increases recorded to income tax provision

Valuation allowance as of end of year

Year Ended December 31,
2018

2017

2019

  $

  $

(121,379)   $
2,046   
0   
(35,236)  
(154,569)   $

(74,842)   $
1,913   
0   
(48,450)  
(121,379)   $

(83,434)
36,606 
24,537 
(52,551)
(74,842)

In each reporting period, the Company considers whether a tax position of the Company is more likely than 
not to be sustained upon examination, including resolution of any related appeals of litigation processes, based on 
the technical merits of the position. For tax positions meeting the more likely than not threshold, the tax amount 
recognized in the financial statements is reduced by the largest benefit that has a greater than fifty percent likelihood 
of being realized upon the ultimate settlement with the relevant taxing authority. No liabilities for unrecognized tax 
benefits were recorded as of as of December 31, 2019 and 2018.

The Company files tax returns as prescribed by the tax laws of the jurisdictions in which it operates. In the 

normal course of business, the Company is subject to examination by federal and state jurisdictions, where 
applicable. There are currently no pending tax examinations. The Company’s tax years are still open under statute 
from 2013 to the present. Earlier years may be examined to the extent that tax credit or NOL carryforwards are used 
in future periods. The resolution of tax matters is not expected to have a material effect on the Company’s 
consolidated financial statements.

17. Quarterly Financial Data (unaudited)

The following information has been derived from unaudited consolidated financial statements that, in the 

opinion of management, include all recurring adjustments necessary for a fair statement of such information.

(in thousands, except per share amounts)
Revenues
Gross profit
Net loss
Net loss per common share—basic and diluted
Weighted average common shares—basic and diluted

(in thousands, except per share amounts)
Revenues
Gross profit
Net loss
Net loss per common share—basic and diluted
Weighted average common shares—basic and diluted

Three Months Ended

  March 31,

June 30,

    September 30,    December 31,  

2019

2019

2019

2019

  $

  $

10,564    $
8,802     
(41,538)    
(1.09)   $
37,992     

16,953    $
15,555     
(36,487)    
(0.96)   $
38,010     

21,786    $
18,914     
(38,232)    
(1.00)   $
38,125     

23,653 
19,725 
(33,516)
(0.88)
38,176  

Three Months Ended

  March 31,

2018

June 30,
2018

    September 30,    December 31,  

2018

2018

  $

  $

2,194    $
(504)
(41,569)    
(1.10)   $
37,620     

3,797    $
2,851 
(43,875)    
(1.16)   $
37,697     

6,990    $
5,371 
(43,640)    
(1.15)   $
37,818     

9,543 
7,470 
(40,575)
(1.07)
37,867  

116

 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
   
   
 
   
   
   
 
 
 
 
   
 
 
 
 
 
 
 
 
   
  
  
  
   
   
Item 9.

Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We are responsible for maintaining disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-

15(e) under the Exchange Act. Disclosure controls and procedures are controls and other procedures designed to 
ensure that the information required to be disclosed by us in the reports that we file or submit under the Exchange 
Act is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and 
forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure 
that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is 
accumulated and communicated to our management, including our principal executive officer and our principal 
financial officer, as appropriate to allow timely decisions regarding required disclosure.

Based on our management’s evaluation (with the participation of our principal executive officer and our 

principal financial officer) of our disclosure controls and procedures as defined by Rule 13a-15(e) and Rule 15d-
15(e) under the Exchange Act, our principal executive officer and our principal financial officer have concluded that 
our disclosure controls and procedures were effective to achieve their stated purpose as of December 31, 2019, 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 Rule 13a-15(f) and Exchange Act Rule 15d-15(f). Internal control 
over financial reporting is a process designed under the supervision and with the participation of our management, 
including our principal executive officer and principal financial officer, to provide reasonable assurance regarding 
the reliability of financial reporting and the preparation of financial statements for external purposes in accordance 
with generally accepted accounting principles.

As of December 31, 2019, our management assessed the effectiveness of our internal control over financial 

reporting using the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in 
Internal Control-Integrated Framework (2013 Framework). Based on this assessment, our management concluded 
that, as of December 31, 2019, our internal control over financial reporting was effective based on those criteria. 

The effectiveness of our internal control over financial reporting as of December 31, 2019 has been audited by 

PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which is 
included in Item 8 in this report.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during the quarter ended December 31, 

2019 that have materially affected, or are reasonably likely to materially affect, our internal control over financial 
reporting.

Item 9B.  Other Information

None.  

117

 
PART III

Item 10. Directors, Executive Officers and Corporate Governance

The information required by this item and not set forth below will be set forth in the section headed “Election 

of Directors” and “Executive Officers” in our Proxy Statement for our 2020 Annual Meeting of Stockholders, or 
Proxy Statement, to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2019, 
and is incorporated herein by reference.

We have adopted a written code of business conduct and ethics that applies to our directors, officers and 
employees, including our principal executive officer, principal financial officer, principal accounting officer or 
controller, or persons performing similar functions. A current copy of the code is available on the Corporate 
Governance section of our website, www.flexiontherapeutics.com. We intend to disclose on our website any 
amendments to, or waivers from, our code of business conduct and ethics that are required to be disclosed pursuant 
to SEC rules.

Section 16(a) Compliance

The information concerning Section 16(a) beneficial ownership reporting compliance will be set forth in the 
section headed “Delinquent Section 16(a) Reports” in our Proxy Statement and is incorporated herein by reference.

Item 11.

Executive Compensation

The information required by this item will be set forth in the section headed “Executive Compensation” in our 

Proxy Statement and is incorporated herein by reference.

Item 12.

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder 
Matters

The information required by this item will be set forth in the section headed “Security Ownership of Certain 

Beneficial Owners and Management” in our Proxy Statement and is incorporated herein by reference.

The information required by Item 201(d) of Regulation S-K will be set forth in the section headed “Executive 

Compensation” in our Proxy Statement and is incorporated herein by reference.

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required by this item will be set forth in the section headed “Transactions With Related 

Persons” in our Proxy Statement and is incorporated herein by reference.

Item 14.

Principal Accounting Fees and Services

The information required by this item will be set forth in the section headed “Ratification of Selection of 

Independent Registered Public Accounting Firm” in our Proxy Statement and is incorporated herein by reference.

118

PART IV

Item  15. Exhibits, Financial Statement Schedules

(a) Documents filed as part of this report.

1.

Financial Statements

The financial statements of Flexion Therapeutics, Inc. listed below are set forth in Item 8 of this report for the 

year ended December 31, 2019:

Report of Independent Registered Public Accounting Firm ................................................................................

Consolidated Balance Sheets................................................................................................................................

Consolidated Statements of Operations and Comprehensive Loss ......................................................................

Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders’ (Deficit) Equity .........

Consolidated Statements of Cash Flows ..............................................................................................................

Notes to Consolidated Financial Statements ........................................................................................................

Page
84

86

87

88

89

90

2.

Financial Statement Schedules

These schedules have been omitted because the required information is included in the consolidated financial 

statements or notes thereto or because they are not applicable or not required.

3.

Exhibits

119

Unless otherwise indicated, all references to previously filed exhibits refer to Flexion’s filings with the SEC 

under File No. 001-36287. The following exhibits are filed as part of, or incorporated by reference, into this report.  
Each management contract or compensatory plan or arrangement required to be identified by this item is so 
designated in such list.

Exhibit
Number

  3.1

  3.2

  4.1

  4.2

  4.3

  4.4

Description 

Amended and Restated Certificate of Incorporation of Flexion (Exhibit 3.1, Current Report on 
Form 8-K filed on February 19, 2014)

Amended and Restated Bylaws of Flexion (Exhibit 3.2, Current Report on Form 8-K filed on 
February 19, 2014)

Form of Common Stock Certificate of Flexion (Exhibit 4.1, Registration Statement on Form S-1 (File 
No. 333-193233), as amended, filed on January 29, 2014)

Indenture, dated as of May 2, 2017, by and between Flexion and Wells Fargo Bank, National 
Association, as trustee (Exhibit 4.1, Current Report on Form 8-K filed on May 2, 2017)

Form of Note representing Flexion’s 3.375% Convertible Senior Notes due 2024 (included as Exhibit 
A to the Indenture filed as Exhibit 4.1, Current Report on Form 8-K filed on May 2, 2017)

Consent and Second Amendment to Credit and Security Agreement, dated April 24, 2017, between 
Flexion and MidCap Financial Trust, as administrative agent (Exhibit 4.3, Current Report on Form 8-
K filed on May 2, 2017)

  4.5

Description of Common Stock

Management Contracts and Compensatory Plans

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

10.9

Form of Indemnity Agreement between Flexion and its directors and officers (Exhibit 10.1, 
Registration Statement on Form S-1 (File No. 333-193233) filed on January 8, 2014)

Flexion Therapeutics, Inc. 2009 Equity Incentive Plan and Forms of Stock Option Agreement, Notice 
of Exercise and Stock Option Grant Notice thereunder (Exhibit 10.2, Registration Statement on 
Form S-1 (File No. 333-193233) filed on January 8, 2014)

Flexion Therapeutics, Inc. 2013 Equity Incentive Plan, as amended, and Forms of Stock Option 
Agreement, Notice of Exercise and Stock Option Grant Notice thereunder (Exhibit 99.1, Current 
Report on Form 8-K, filed September 14, 2017)

Form of Restricted Stock Unit Award Agreement and Restricted Stock Unit Grant Notice under the 
Flexion Therapeutics, Inc. 2013 Equity Incentive Plan (Exhibit 99.1, Current Report on Form 8-K 
filed on December 22, 2015)

Flexion Therapeutics, Inc. 2013 Employee Stock Purchase Plan (Exhibit 10.4, Registration Statement 
on Form S-1 (File No. 333-193233), as amended, filed on January 29, 2014)

Flexion Therapeutics, Inc. Non-Employee Director Compensation Policy, as revised 

Amended and Restated Offer Letter between Flexion and Michael D. Clayman, M.D. (Exhibit 10.6, 
Registration Statement on Form S-1 (File No. 333-193233) filed on January 8, 2014)

Amendment to Amended and Restated Offer Letter between Flexion and Michael D. Clayman, M.D. 
(Exhibit 10.7, Annual Report on Form 10-K filed on March 28, 2014)

Amended and Restated Offer Letter between Flexion and Scott Kelley, M.D. (Exhibit 10.11, Annual 
Report on Form 10-K filed on March 8, 2018)

120

 
Exhibit
Number

10.10

10.11

10.12

10.13

10.14

Description 

Amended and Restated Offer Letter between Flexion and Mark Levine (Exhibit 10.12, Annual Report 
on Form 10-K filed on March 8, 2018)

Amended and Restated Offer Letter between Flexion and Kerry Wentworth (Exhibit 10.13, Annual 
Report on Form 10-K filed on March 8, 2018)

Offer Letter between Flexion and David Arkowitz (Exhibit 10.1, Quarterly Report on Form 10-Q filed 
on May 8, 2018)

Amended and Restated Offer Letter between Flexion and Christina Willwerth (Exhibit 10.15, Annual 
Report on Form 10-K filed on February 28, 2019) 

Flexion Therapeutics, Inc. Change in Control Severance Benefit Plan and Form of Participation 
Agreement (Exhibit 99.1, Current Report on Form 8-K filed on June 23, 2017)

10.15

Separation and Consulting Agreement between Flexion and Neil Bodick, dated December 9, 2019

10.17

10.18

10.19

10.20*

10.21*

10.22*

10.23

10.24

10.25

10.26

10.27

10.28 

10.29 

Other Agreements

Lease, dated February 22, 2013, between Flexion and The Trustees of Mall Road Trust (Exhibit 
10.14, Registration Statement on Form S-1 (File No. 333-193233) filed on January 8, 2014)

First Amendment of Lease, dated July 13, 2015, between Flexion and CIP II/RJK 10-20 BMR Owner, 
LLC (as successor in interest to The Trustees of Mall Road Trust) (Exhibit 10.3, Quarterly Report on 
Form 10-Q filed on November 9, 2015)

Second Amendment of Lease, dated December 15, 2015, between Flexion and CIP II/RJK 10-20 
BMR Owner, LLC (Exhibit 10.20, Annual Report on Form 10-K filed on March 11, 2016) 

Exclusive License Agreement, dated July 25, 2014, between Flexion and Southwest Research Institute 
(Exhibit 10.21, Annual Report on Form 10-K filed on March 11, 2016)

Manufacturing and Supply Agreement, dated July 31, 2015, between Flexion and Patheon UK 
Limited (Exhibit 10.1, Quarterly Report on Form 10-Q filed on November 9, 2015)

Technical Transfer and Service Agreement, dated July 31, 2015, between Flexion and Patheon UK 
Limited (Exhibit 10.2, Quarterly Report on Form 10-Q/A filed on January 26, 2016)

Credit and Security Agreement, dated August 4, 2015, between Flexion and MidCap Financial Trust, 
as administrative agent, and the Lenders listed on the Credit Facility Schedule attached thereto 
(Exhibit 10.4, Quarterly Report on Form 10-Q filed on November 9, 2015)

Third Amendment of Lease, dated May 8, 2016, between Flexion and CIP II/RJK 10-20 BMR Owner, 
LLC (Exhibit 10.1, Quarterly Report on Form 10-Q filed on August 3, 2016) 

Fourth Amendment of Lease, dated June 29, 2016, between Flexion and CIP II/RJK 10-20 BMR 
Owner, LLC (Exhibit 10.2, Quarterly Report on Form 10-Q filed August 3, 2016) 

Fifth Amendment of Lease, dated July 21, 2016, between Flexion and CIP II/RJK 10-20 BMR Owner, 
LLC (Exhibit 10.3, Quarterly Report on Form 10-Q filed August 3, 2016

Sixth Amendment of Lease, dated September 21, 2016, between Flexion and CIP II/RJK 10-20 BMR 
Owner, LLC (Exhibit 10.1, Quarterly Report on Form 10-Q filed on November 7, 2016) 

Seventh Amendment of Lease, dated September 21, 2016, between Flexion and CIP II/RJK 10-20 
BMR Owner, LLC (Exhibit 10.1, Quarterly Report on Form 10-Q filed on August 8, 2017)

Supply Agreement, dated November 10, 2016, between Flexion and Evonik Corporation (Exhibit 
10.29, Annual Report on Form 10-K filed on March 10, 2017)

121

 
Exhibit
Number

10.30

10.31

10.32

10.33

10.34

10.35

21.1

23.1

24.1

31.1

31.2

32.1

32.2

Description 

Amendment to Exclusive License Agreement, dated February 7, 2017, between Flexion and 
Southwest Research Institute (Exhibit 10.30, Annual Report on Form 10-K filed on March 10, 2017)

First Amendment to the Technical Transfer and Service Agreement, dated May 12, 2019, between 
Flexion and Patheon UK Limited (Exhibit 10.1, Quarterly Report on Form 10-Q filed on August 6, 
2019)

First Amendment to the Manufacturing and Supply Agreement, dated May 12, 2019, between Flexion 
and Patheon UK Limited (Exhibit 10.2, Quarterly Report on Form 10-Q filed on August 6, 2019)

Second Amendment to the Manufacturing and Supply Agreement, dated June 21, 2019, between 
Flexion and Patheon UK Limited (Exhibit 10.3, Quarterly Report on Form 10-Q filed on August 6, 
2019)

Eighth Amendment of Lease, dated June 21, 2019, between Flexion and CIP II/RJK 10-20 BMR  
Owner LLC (Exhibit 10.4, Quarterly Report on Form 10Q filed on August 6, 2019)

Amended and Restated Credit and Security Agreement, dated August 2, 2019, by and among Flexion, 
Silicon Valley Bank as agent, MidCap Financial Trust, Flexpoint MCLS Holdings, LLC and the other 
lenders from time to time party thereto (Exhibit 99.3, Current Report on Form 8-K filed on August 6, 
2019)

Subsidiaries of Flexion Therapeutics, Inc.

Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm

Power of Attorney (reference is made to the signature page thereto)

Certification of the Principal Executive Officer pursuant to Rule 13a-14(a) or 15d-14(a) of the 
Securities Exchange Act of 1934

Certification of the Principal Financial and Accounting Officer pursuant to Rule 13a-14(a) or 15d-
14(a) of the Securities Exchange Act of 1934

Certification of Principal Executive Officer pursuant to Rule 13a-14(b) or 15d-14(b) of the Exchange 
Act and 18 U.S.C. Section 1350

Certification of Principal Financial and Accounting Officer pursuant to Rule 13a-14(b) or 15d-14(b) 
of the Exchange Act and 18 U.S.C. Section 1350

101.INS

Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File 
because XBRL tags are embedded within the Inline XBRL document.

101.SCH Inline XBRL Taxonomy Extension Schema Document

101.CAL

Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF

Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE

Inline XBRL Taxonomy Extension Presentation Linkbase Document

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

*

Confidential treatment has been granted with respect to certain portions of this exhibit. Omitted portions have 
been filed separately with the SEC.

Item  16.   10-K Summary
None.

122

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 on the 12th day of 
March, 2020.

FLEXION THERAPEUTICS, INC.

By:

/s/ Michael D. Clayman, M.D.
Michael D. Clayman, M.D.
President and Chief Executive Officer

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and 

appoints Michael D. Clayman, M.D. and Mark S. Levine, and each of them, his true and lawful attorneys-in-fact and 
agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all 
capacities, to sign any and all amendments (including post-effective amendments) to this report, and to file the same, 
with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, 
granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and 
every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he 
might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or either of 
them, or their or his substitutes or substitute, may lawfully do or cause to be done by virtue hereof.

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/ Michael D. Clayman, M.D.
Michael D. Clayman, M.D.

/s/ David Arkowitz
David Arkowitz

/s/ Patrick J. Mahaffy
Patrick J. Mahaffy

/s/ Scott Canute
Scott Canute

/s/ Samuel D. Colella
Samuel D. Colella

/s/ Heath Lukatch, Ph.D.
Heath Lukatch, Ph.D.

/s/ Sandesh Mahatme
Sandesh Mahatme

/s/ Ann Merrifield
Ann Merrifield

/s/ Alan Milinazzo
Alan Milinazzo

/s/Mark Stejbach
Mark Stejbach

President, Chief Executive Officer and
Member of the Board of Directors
(Principal Executive Officer)

Chief Financial Officer
(Principal Financial and Accounting Officer)

March 12, 2020

March 12, 2020

Chairman of the Board of Directors

March 12, 2020

Member of the Board of Directors

March 12, 2020

Member of the Board of Directors

March 12, 2020

Member of the Board of Directors

March 12, 2020

Member of the Board of Directors

March 12, 2020

Member of the Board of Directors

March 12, 2020

Member of the Board of Directors

March 12, 2020

Member of the Board of Directors

March 12, 2020

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