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Infinity Pharmaceuticals

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FY2016 Annual Report · Infinity Pharmaceuticals
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Developing a Unique Approach to Treating Cancer
Annual Report 2016

Infi nity Pharmaceuticals, Inc.
784 Memorial Drive
Cambridge, MA 02139
www.infi .com

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IPI-549: A New Approach to Targeting the Tumor 
Microenvironment by Selectively Inhibiting PI3K-Gamma

We are developing IPI-549, an oral, once-daily product candidate that selectively inhibits PI3K-gamma. 

Selective PI3K-gamma inhibition represents a unique and potentially transformative approach within 

immuno-oncology, and IPI-549 has the potential to be a fi rst-in-class therapy.  Preclinical research 

demonstrates that IPI-549 works by reprogramming key cells (called macrophages) within the tumor 

JEFFERY KUTOK, M.D., Ph.D.

microenvironment from a pro-tumor phenotype to an anti-tumor phenotype, ultimately leading to the 

Chief Scientifi c Offi  cer

activation of T cells that can attack cancer cells. 

Mechanism of action for IPI-549 

based on preclinical research 

published in Nature1,2: Blockade 

of PI3K-gamma signaling by 

treatment with IPI-549 results in a 

reprogramming of M2, pro-tumor 

macrophages to M1, anti-tumor 

macrophages and increases the 

activity of anti-tumor T cells 

which attack the tumor.

Tumor 
Cells

M2 macrophages 
(pro-tumor)

Suppressed
T cells

PI3K-gamma signaling in macrophages within the tumor microenvironment 
maintains macrophages in the M2, or pro-tumor phenotype, which 
suppress anti-tumor T cells and enable tumor growth.

Progressing Our Phase 1 Study in Patients with 
Advanced Solid Tumors

We are evaluating IPI-549 as a monotherapy and in combination with Opdivo in a Phase 1 study in patients 

with advanced solid tumors and are very pleased with the momentum of this trial. In April, at the American 

Association for Cancer Research (AACR) Annual Meeting 2017, we reported encouraging monotherapy 

and combination data from the dose-escalation modules of the study. The data demonstrated that IPI-549 

CLAUDIO DANSKY ULLMANN, M.D.

was well tolerated as a monotherapy and in combination with Opdivo, and the pharmacokinetic and 

Senior Viice President, 
Clinical Development

pharmacodynamic properties of IPI-549 monotherapy treatment were favorable and support once-daily 

dosing.4 Demonstrating the tolerability of monotherapy and combination treatment represents key de-risking 

events for the program and will enable us to more fully evaluate IPI-549 in disease-specifi c expansion cohorts.

We are on track to initiate the expansion cohorts in the second half of 2017, which will generate 

additional clinical data from monotherapy treatment as well as from the combination of IPI-549 and 

Opdivo in specifi c types of solid tumors, including non-small cell lung cancer (NSCLC), melanoma 

and head and neck cancer (HNSCC). Patients enrolled in the disease-specifi c cohorts must have not 

responded or developed resistance to checkpoint therapy, representing a direct test of whether IPI-549 

can overcome checkpoint resistance as demonstrated in preclinical models and published in Nature.2 

Additionally, pre-treatment and on-treatment biopsies are a mandatory component of the expansion 

Infinity is a clinical-stage biopharmaceutical company focused on 
developing novel anti-cancer therapies. We are advancing a unique 
approach to treating cancer with IPI-549, a potentially transformative, 
first-in-class therapy for the treatment of solid tumors. 

EXECUTIVE LEADERSHIP

Lawrence Bloch, M.D., J.D.
President

Claudio Dansky Ullmann, M.D.
Senior Vice President, 
Clinical Development

Jeff ery Kutok, M.D., Ph.D.
Chief Scientifi c Offi  cer

Adelene Perkins
Chair and Chief Executive Offi  cer 

Seth Tasker
Vice President, General Counsel 
and Secretary

BOARD OF DIRECTORS

José Baselga, M.D., Ph.D.
Physician-in-Chief, 
Memorial Sloan Kettering Cancer Center

Jeff rey Berkowitz
Executive Vice President, 
Optum, Inc.

Anthony Evnin, Ph.D.
Partner, Venrock Associates

Michael Kauff man, M.D., Ph.D.
Chief Executive Offi  cer 
Karyopharm Therapeutics

Adelene Perkins
Chair and Chief Executive Offi  cer,
Infi nity Pharmaceuticals, Inc.

Norman Selby
Chairman, RealEndpoints

Ian Smith
Executive Vice President, 
Chief Operating Offi  cer and 
Chief Financial Offi  cer, 
Vertex Pharmaceuticals Incorporated

Michael Venuti, Ph.D.
Industry Consultant

Footnotes:

ANNUAL MEETING
The Annual Meeting of Stockholders will be held at 
8:30 a.m. EDT on May 25, 2017, at
Infi nity Pharmaceuticals, Inc.
784 Memorial Drive
Cambridge, MA 02139

INDEPENDENT AUDITORS
Ernst & Young LLP; Boston, MA

INVESTOR INQUIRIES
617.453.1015
irpr_info@infi .com

STOCK LISTING
NASDAQ: INFI

TRANSFER AGENT
The transfer agent is responsible, among other things, 
for handling stockholder questions regarding lost stock 
certifi cates, address changes, including duplicate mailings, 
and changes in ownership or name in which shares are held. 
These requests may be directed to the transfer agent at the 
following address:

American Stock Transfer & Trust Company, LLC
6201 15th Avenue
Brooklyn, NY 11219
www.amstock.com

SEC FORM 10-K
A copy of Infi nity’s annual report on Form 10-K fi led with the 
Securities and Exchange Commission is available free of charge 
from the company’s Investor Relations Department by calling 
617.453.1015, sending a request by email to irpr_info@infi .com 
or sending a written request to:

Investor Relations
Infi nity Pharmaceuticals, Inc.
784 Memorial Drive
Cambridge, MA 02139

1  Kaneda M., Messer K., Ralainirina N., Li H., et al. PI3Kγ is a molecular switch that controls immune suppression. Nature, 2016 Nov;539:437-442.

2  De Henau O., Rausch M., Winkler D., Campesato L., et al. Overcoming resistance to checkpoint blockade therapy by targeting PI3Kγ in myeloid cells. Nature, 2016 Nov;539:443-447.

3  OPDIVO® is a registered trademark of Bristol-Myers Squibb. 

4  Tolcher A., Hong D., Sullivan R., Mier J., et al. A Phase 1/1b, fi rst-in-human study of IPI-549, a PI3K-γ inhibitor, as monotherapy and in combination with nivolumab in patients with advanced solid tumors. 

  Abstract #CT089. Presented at AACR Annual Meeting 2017.

5  Clinicaltrials.gov Identifi er NCT02637531

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Preclinical research conducted by Infi nity and academic collaborators has led to a better understanding of how IPI-549 

may work and has also shown that IPI-549 can enhance the activity of other immunotherapies, including checkpoint 

inhibitors.1,2 Additionally, in preclinical studies, IPI-549 has demonstrated the ability to overcome resistance to checkpoint 

inhibitors – a potentially signifi cant fi nding that we are investigating in patients who relapse or do not respond to treatment 

with currently available checkpoint therapies.  

These seminal preclinical fi ndings were published in back-to-back articles in the journal Nature1,2 in November 2016 and 

provide a compelling rationale for our ongoing Phase 1 clinical study of IPI-549 as a monotherapy and in combination with 

Opdivo® (nivolumab),3 a PD-1 immune checkpoint inhibitor, in patients with advanced solid tumors.

M1 macrophages 
(anti-tumor)

Activated
T cells

IPI-549

Tumor 
Cells

Treatment with IPI-549 blocks PI3K-gamma signaling in macrophages, 
leading to the reprogramming of macrophages to the M1, anti-tumor 
state and increasing the number and activity of anti-tumor T cells.

The M1, anti-tumor macrophages, together with the now activated 
anti-tumor T cells, lead to reduction in tumor growth in a broad range 
of preclinical models.

modules so that we can better understand the tumor characteristics of patients who respond and identify biomarkers 

of response and resistance.

While great progress has been made in the fi eld of immunotherapy, there is a tremendous need for additional therapies 

for patients who relapse or do not respond to currently available treatments, and the magnitude of this need inspires us 

to continue to rapidly advance the development of IPI-549.

Our ongoing Phase 1 study is evaluating the safety, pharmacokinetics, pharmacokinetics and activity of IPI-549 administered 
orally, once daily as a monotherapy and in combination with Opdivo® in approximately 175 patients with advanced solid tumors.5

40 mg

30 mg 

20 mg 

IPI-549 20 mg + Opdivo®

RP2D

IPI-549 30 mg + Opdivo®

RP2D

Monotherapy expansion

IPI-549 + Opdivo expansion*:

•  NSCLC

•  Melanoma

•  HNSCC

•  Other solid tumors**

15 mg 

10 mg 

MODULE

1

• Assess safety, PK, PD and recommended Phase 2 dose (RP2D) of IPI-549
• 40 mg fully enrolled

MODULE

2

• Determine safety, PK, PD and recommended Phase 2 dose of combination
• IPI-549 30 mg + Opdivo fully enrolled

MODULE

3

MODULE

4

• Assess monotherapy safety, PK, PD and activity at 

recommended Phase 2 dose (all-comers)

• Assess combination safety, PK, PD and activity at 

recommended Phase 2 dose in disease-specifi c cohorts

*Must have de novo or acquired resistance to immediate prior PD-1/PD-L1 therapy (Module 4 only)      **If supported by data; NCT02637531 

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Dear Fellow Shareholders,

2016 was a transition year for Infi nity as we turned our focus 
to IPI-549*, which is believed to be the fi rst and only selective 
PI3K-gamma inhibitor in clinical development. We had a 
number of key accomplishments last year that position us 
to make important progress in 2017.

In September 2016, we reported initial, encouraging Phase 1 data with IPI-549, and in 
November, our preclinical data were published in two articles in Nature. We also entered 
an agreement with Bristol-Myers Squibb for the supply of Opdivo® (nivolumab) for the 
combination modules of our Phase 1 study which we initiated in December.  

We entered 2017 with continued momentum. This year, we have already completed patient 
enrollment in the fi rst two dose-escalation cohorts evaluating IPI-549 in combination with 
Opdivo. We also presented updated data from the dose-escalation modules of our Phase 1 
study at the AACR Annual Meeting in April. The clinical data continue to be promising, and 
we are on track to initiate expansion cohorts in the second half of 2017, which will enable 
us to generate additional data not only about the safety but also the activity of IPI-549.  

At Infi nity, we’re committed to developing fi rst-in-class and best-in-class medicines that can 
make a meaningful diff erence for patients. We recognize the growing need for treatment 
options for patients fi ghting cancer, including those who have received immunotherapies 
such as checkpoint inhibitors. The majority of patients who receive immunotherapy 
treatment do not respond or subsequently develop resistance to these therapies. Given 
our preclinical data demonstrating that IPI-549 can overcome resistance to checkpoint 
blockade, coupled with our encouraging early clinical data, we are very excited about the 
potential to address this growing need by bringing an important new medicine to patients. 

We expect a data-rich 2017 and have the fi nancial resources to complete all four modules 
of our ongoing Phase1 clinical study of IPI-549 within our current cash runway, which 
extends into the fi rst quarter of 2019. Our progress is made possible by the dedicated 
Infi nity team and collaborators who share our commitment to improving patient care. We 
thank you for your support and look forward to updating you on our progress.

Sincerely, 

ADELENE Q. PERKINS

LAWRENCE E. BLOCH, M.D., J.D.

Chair and Chief Executive Offi  cer

President

*IPI-549 is an investigational compound and its safety and effi  cacy has not been evaluated by the 
U.S. Food and Drug Administration or any other health authority.

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FOLLOWING IS THE COMPANY’S ANNUAL REPORT ON FORM 10-K

FOR THE FISCAL YEAR ENDED DECEMBER 31, 2016.

[THIS PAGE INTENTIONALLY LEFT BLANK]

UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549 

FORM 10-K 

(Mark One) 

(cid:58)(cid:3) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES 

EXCHANGE ACT OF 1934 

For the fiscal year ended: December 31, 2016  

(cid:133)(cid:3) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES 

EXCHANGE ACT OF 1934 

For the transition period from              to 
Commission file number: 000-31141 

INFINITY PHARMACEUTICALS, INC. 

(Exact name of registrant as specified in its charter) 

Delaware 
(State or other jurisdiction of 
incorporation or organization) 

33-0655706 
(I.R.S. Employer 
Identification No.) 

784 Memorial Drive, Cambridge, Massachusetts 02139 
(Address of principal executive offices) (zip code) 
Registrant’s telephone number, including area code: (617) 453-1000 
Securities registered pursuant to Section 12(b) of the Act: 

Common Stock, $0.001 par value 
(Title of each class) 

NASDAQ Global Select Market 
(Name of each exchange on which listed) 

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

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities 

Act.    Yes  (cid:133)    No  (cid:58) 

(cid:3)
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the 

Act.    Yes  (cid:133)    No  (cid:58) 

(cid:3)
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  (cid:58)    No  (cid:133) 

(cid:3)
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, 

every Interactive Data File required to be submitted and posted 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 and post such 
files).    Yes  (cid:58)    No  (cid:133) 

(cid:3)

 
 
 
 
 
 
 
 
 
 
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained 

herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements 
incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  (cid:58) 

(cid:3)
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or 

a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” 
in Rule 12b-2 of the Exchange Act. (Check one): 

Large accelerated filer  (cid:133) 

  Accelerated filer  (cid:58) 

  Non-accelerated filer  (cid:133) 
(Do not check if a smaller 
reporting company) 

Smaller reporting company  
(cid:133) 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange 

Act).    Yes  (cid:133)    No  (cid:58) 

(cid:3)
The aggregate market value of voting Common Stock held by non-affiliates of the registrant as of June 30, 2016 was 
$64,584,042 based on the last reported sale price of the registrant’s Common Stock on the NASDAQ Global Select Market on 
that date. 

Number of shares outstanding of the registrant’s Common Stock as of March 1, 2017: 50,426,205 

Documents incorporated by reference: 

Portions of our definitive proxy statement to be filed with the Securities and Exchange Commission no later than May 

1, 2017 in connection with our 2017 annual meeting of stockholders are incorporated by reference into Part III of this Annual 
Report on Form 10-K. 

 
 
 
   
 
   
 
 
 
 
 
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 
Signatures 

Page No. 

4 
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64 
64 
64 

64 

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112 

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113 
114 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Forward-Looking Information 

The following discussion of our financial condition and results of operations contained in this Annual Report on Form 

10-K should be read in conjunction with our consolidated financial statements and related notes included elsewhere in this 
report. Some of the information contained in this discussion and analysis and set forth elsewhere in this report, including 
information with respect to our plans and strategy for our business, the possible achievement of development goals and 
milestones in 2017, our future development efforts, our collaborations, and our future operating results and financial position, 
includes forward-looking statements that involve risks and uncertainties. We often use words such as “anticipate,” “believe,” 
“estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “target,” “potential,” “will,” “would,” “could,” 
“should,” “continue,” and other words and terms of similar meaning to help identify forward-looking statements, although not 
all forward-looking statements contain these identifying words. You also can identify these forward-looking statements by the 
fact that they do not relate strictly to historical or current facts. There are a number of important risks and uncertainties that 
could cause actual results or events to differ materially from those indicated by forward-looking statements made herein. These 
risks and uncertainties include those inherent in pharmaceutical research and development, such as adverse results in our drug 
development activities, decisions made by the U.S. Food and Drug Administration, or FDA, and other regulatory authorities 
with respect to the development and commercialization of our product candidates, our ability to obtain, maintain and enforce 
intellectual property rights for our product candidates, our dependence on our alliance partners, competition, our ability to 
obtain any necessary financing to conduct our planned activities and other risk factors described herein. We have included 
important factors in the cautionary statements included in this Annual Report on Form 10-K, particularly in Part I, Item 1A, 
Risk Factors, that could cause actual results to differ materially from the results described in or implied by the forward-looking 
statements contained in the following discussion and analysis. Unless required by law, we do not undertake any obligation to 
update any forward-looking statements. 

Item 1. Business 

Overview 

PART I 

We are an innovative biopharmaceutical company dedicated to developing best-in-class medicines for patients with 
difficult-to-treat diseases. We combine proven scientific expertise with a passion for developing novel small molecule drugs 
that target disease pathways for potential applications in oncology. 

IPI-549: Targeting Solid Tumors by Selective Inhibition of the PI3K-Gamma Isoform 

We are focusing our efforts on our lead product candidate, IPI-549, an orally administered, clinical-stage, immuno-

oncology product candidate that selectively inhibits the enzyme phosphoinositide-3-kinase-gamma, or PI3K-gamma. 

Role of PI3K-gamma in Cancer Growth and Survival 

The body’s immune system is responsible for fighting off infections and disease, including cancer, and helping the 

body to heal. The immune system functions by identifying and destroying foreign cells and substances within the body. When 
confronted by pathogens or disease, an early response of the body's immune system comes in the form of macrophages, a type 
of white blood cell that produces pro-inflammatory proteins called cytokines. These cytokines activate T cells, another type of 
immune cell, to attack the health threat. The macrophages then switch gears to produce other types of cytokines that dampen T 
cell activation, which, in turn, stimulates repair of the affected tissue. 

Cancer cells arise from normal cells that have changed in a way that allows them to grow out of control.  Cancer cells 

are not always recognized by the immune system as foreign cells that should be destroyed. However, if cancer cells are 
recognized by the immune system, mechanisms exist to dampen this immune response and include upregulation of “checkpoint 
proteins” on T cells, such as programmed death receptor 1, or PD-1. Additionally, in cancer there exists a tumor 
microenvironment, or TME, which refers to the non-cancerous cells present in the tumor. Cells within the TME, including 
macrophages, can suppress the immune response and provide signals to cancer cells allowing the tumor to grow. The presence 
of the supportive TME is thought to be one reason why some cancer therapies, including checkpoint inhibitors, have not 

4 

 
 
 
 
provided durable or effective results to date. Targeting cells that suppress the immune system represents an emerging approach 
within the field of cancer immunotherapy, and inhibition of PI3K-gamma by IPI-549 represents a novel approach to targeting 
this immune-suppressive microenvironment. 

Anti-Tumor Activity of IPI-549 in Preclinical Models 

Preclinical research found that macrophage PI3K-gamma signaling promotes a genetic program that results in a 
macrophage type that suppresses the activation of anti-tumor T cells. Preclinical data demonstrated that blockade of PI3K-
gamma by treatment with IPI-549 leads to a shift in the type of macrophages present in the TME from macrophages associated 
with suppression of the immune response, known as the M2 phenotype, to macrophages that are supportive of a pro-
inflammatory, anti-tumor immune response, known as the M1 phenotype. Treatment with IPI-549 increased the M1/M2 
macrophage ratio, the number of T cells that attack the tumor, and the production of pro-inflammatory cytokines. 

Preclinical studies to investigate the anti-tumor activity of IPI-549 have demonstrated dose-dependent, single-agent, 

anti-tumor activity in multiple solid tumor models, including models of lung cancer (see below), colon cancer and breast 
cancer. 

Additionally, in preclinical models, treatment with IPI-549 in combination with a checkpoint inhibitor showed greater 

tumor growth inhibition and survival, including a greater number of complete tumor regressions, compared to treatment with 
either IPI-549 or the checkpoint inhibitor alone. The combination treatment results in long-lasting anti-tumor immune memory 
as evidenced by the lack of tumor growth when animals are re-challenged with tumor in the absence of any treatment. 

5 

 
  
 
 
 
These findings support the hypothesis that inhibition of PI3K-gamma by IPI-549 leads to an activated and more 

efficient anti-tumor immune response through its effects on the immune-suppressive TME. 

6 

 
 
 
 
 
 
Overcoming Resistance to Checkpoint Inhibition 

In recent years, checkpoint inhibitors have shown promising results as a treatment for multiple types of cancer, but 

many patients eventually become resistant to checkpoint inhibitors and require treatment with an additional therapy.  Preclinical 
studies in a number of tumor models showed that resistance to checkpoint inhibition is associated with increased numbers of 
tumor-associated macrophages and is directly mediated by the immune-suppressive activity of these macrophages on T cells.  
Furthermore, the data showed that inhibition of PI3K-gamma by IPI-549 switched the activation of macrophages from an 
immune-suppressive M2 state to a pro-inflammatory M1 state, leading to enhanced anti-tumor cytotoxic T cell activity, 
particularly when combined with checkpoint inhibitors. These data demonstrate that IPI-549 treatment is able to reverse the 
lack of response to checkpoint inhibitors in models that are initially insensitive to checkpoint inhibition as a single therapy (see 
below). 

Phase 1 Clinical Study of IPI-549 

Based on our preclinical data generated to date, we are conducting a Phase 1 study evaluating IPI-549 in 
approximately 175 patients with advanced solid tumors. The study includes a dose-escalation phase to evaluate the safety, 
tolerability, pharmacokinetics, and pharmacodynamics of IPI-549 as a monotherapy, as well as a dose-escalation phase 
evaluating IPI-549 in combination with nivolumab, also known as Opdivo. Nivolumab, a checkpoint inhibitor therapy being 
commercialized by Bristol-Myers Squibb, or BMS, targets PD-1. If supported by data from the initial portion of the study, a 
Phase 1b portion would investigate IPI-549 in a monotherapy expansion cohort as well as in expansion cohorts in combination 
with nivolumab in patients with selected solid tumors, including non-small cell lung cancer, or NSCLC, melanoma and 
squamous cell carcinoma of the head and neck, or SCCHN, whose tumors have shown initial resistance or subsequently have 
developed resistance to checkpoint inhibitor therapy. We expect to begin enrolling patients in both the monotherapy and 
combination expansion cohorts during the second half of 2017. 

In connection with our Phase 1 study of IPI-549, we have entered into a clinical supply agreement with BMS under 
which BMS agreed to provide nivolumab at no cost to us for use in our Phase 1 study of IPI-549.  Under the agreement with 
BMS, we would provide BMS with clinical data from the study. 

In September 2016, we presented initial clinical data from our Phase 1 study of IPI-549 in a poster session at the 

Second CRI-CIMT-EATI-AACR International Cancer Immunotherapy Conference: Translating Science into Survival and in 
January 2017 at the Keystone Symposia Conference, "PI3K Pathways in Immunology, Growth Disorders and Cancer". 
Preliminary results from nine patients with advanced solid tumors showed that the safety, pharmacokinetics and 
pharmacodynamics of IPI-549 monotherapy treatment appeared favorable. As of the September 2016 data cutoff, no dose 
limiting toxicities and no serious adverse events were observed. Pharmacokinetic and pharmacodynamic data supported once 
daily dosing of IPI-549 based on the observed half-life and inhibition of the PI3K-gamma pathway. We expect to report 

7 

 
 
 
 
 
 
 
additional Phase 1 study data from the monotherapy dose-escalation phase as well as the dose-escalation phase evaluating IPI-
549 in combination with nivolumab in 2017. 

The expansion cohorts of our Phase 1 clinical study represent patient populations for which there exists a significant 

unmet medical need, including patients with NSCLC, melanoma and SCCHN whom either relapse or do not respond to 
treatment with a checkpoint inhibitor such as Opdivo. The American Cancer Society estimates approximately 189,000 new 
cases of NSCLC and approximately 87,000 new cases of melanoma in 2017. Additionally, the American Society of Clinical 
Oncology estimates approximately 62,000 new cases of SCCHN in 2017. 

Strategic Alliances 

Since our inception, corporate alliances have been integral to our strategy. These alliances have provided access to 

breakthrough science, significant research and development support and funding, and innovative drug development programs, 
all intended to help us realize the full potential of our product pipeline. All of our revenues since September 2006 have been 
generated under collaborative research agreements including our corporate alliances. 

Verastem 

On October 29, 2016, we and Verastem, Inc., or Verastem, entered into a license agreement, which we and Verastem 

amended and restated on November 1, 2016, effective as of October 29, 2016. We refer to the amended and restated license 
agreement as the Verastem Agreement. Under the Verastem Agreement, we granted to Verastem an exclusive worldwide license 
for the research, development, commercialization, and manufacture of duvelisib and products containing duvelisib, which we 
refer to as the Licensed Products, in each case in oncology indications. Duvelisib, also known as IPI-145, is a selective 
inhibitor of the PI3K delta and gamma isoforms. Upon entry into the Verastem Agreement, Verastem assumed financial 
responsibility for activities that were part of our ongoing duvelisib program, including a randomized, Phase 3 monotherapy 
clinical study in patients with relapsed/refractory chronic lymphocytic leukemia which we refer to as the DUO Study. Verastem 
is obligated to use diligent efforts, as defined in the Verastem Agreement, to develop and commercialize one Licensed Product. 
During the term of the Verastem Agreement, we have agreed not to research, develop, manufacture or commercialize duvelisib 
in any indication in humans or animals. 

Under the Verastem Agreement, we have financial responsibility for up to $4.5 million of costs related to the shutdown 

of certain specified clinical studies. We expect to reach the $4.5 million maximum for clinical study shutdown costs during the 
first half of 2017. Following a short transition period, Verastem has assumed all financial and operational responsibility for the 
duvelisib program except for the clinical shutdown costs and certain clinical study close-out activities we agreed to retain and 
will reimburse us for costs incurred by us during the transition period, together with certain prepaid expenses associated with 
the clinical studies assumed by Verastem. 

Pursuant to the terms of the Verastem Agreement, Verastem is required to make the following payments to us in cash 
or, at Verastem’s election, in whole or in part, in shares of Verastem common stock: (i) $6.0 million upon the completion of the 
DUO Study if the results of the DUO Study meet certain pre-specified criteria and (ii) $22.0 million upon the approval for a 
Licensed Product of a new drug application, or NDA, in the United States or an application for marketing authorization with a 
regulatory authority outside of the United States.  For any portion of any of the foregoing payments which Verastem elects to 
issue in shares of common stock in lieu of cash, the number of shares of Verastem common stock to be issued would be 
determined by multiplying (1) 1.025 by (2) the number of shares of common stock equal to (a) the amount of the payment to be 
paid in shares of common stock divided by (b) the average closing price of a share of Verastem common stock as quoted on 
NASDAQ for a twenty-day period following the public announcement of the applicable milestone event.  The shares of 
common stock would be issued as unregistered securities, and Verastem would have an obligation to promptly file a registration 
statement with the U.S. Securities and Exchange Commission, or SEC, to register such shares for resale. Any issuance of shares 
would be subject to the satisfaction of standard closing conditions, including that all material authorizations, consents and 
similar approvals necessary for such issuance shall have been obtained. 

Verastem is also obligated to pay us royalties on worldwide net sales of Licensed Products ranging from the mid-

single digits to the high single-digits. The royalty obligation will continue on a product-by-product and country-by-country 

8 

 
 
 
 
basis until the latest to occur of (i) the last-to-expire patent right covering the applicable Licensed Product in the applicable 
country, (ii) the last-to-expire patent right covering the manufacture of the applicable Licensed Product in the country of 
manufacture of such Licensed Product, (iii) the expiration of non-patent regulatory exclusivity for such Licensed Product in the 
applicable country and (iv) ten years following the first commercial sale of a Licensed Product in the applicable country, 
provided that, upon the expiration of the last-to-expire patent right covering the such Licensed Product in the United States, the 
applicable royalty on net sales for such Licensed Product in the United States will be reduced by 50%. The royalties are also 
subject to reduction by 50% of certain third-party royalty payments or patent litigation damages or settlements which might be 
required to be paid by Verastem if litigation were to arise, with any such reductions capped at 50% of the amounts otherwise 
payable during the applicable royalty payment period. 

In addition to the foregoing, Verastem is obligated to pay us a royalty of 4% on worldwide net sales of Licensed 

Products to cover the reimbursement of research and development costs owed by us to Mundipharma International Corporation 
Limited, or Mundipharma, and Purdue Pharmaceutical Products L.P., or Purdue.  Once we have fully reimbursed Mundipharma 
and Purdue, Verastem’s royalty obligations described in this paragraph will be reduced to 1% of net sales in the United States, 
which we refer to as the Trailing Mundipharma Royalties. The Trailing Mundipharma Royalties are payable on a product-by-
product basis until the latest to occur of (i) the last-to-expire patent right covering the applicable Licensed Product in the United 
States, (ii) the last-to-expire patent right covering the manufacture of the applicable Licensed Product in the country of 
manufacture of such Licensed Product, (iii) the expiration of non-patent regulatory exclusivity for such Licensed Product in the 
United States and (iv) ten years following the first commercial sale of such Licensed Product in the United States, provided 
that, upon the expiration of the last-to-expire patent right covering the a Licensed Product in the United States, the applicable 
royalty on net sales for such Licensed Product in the United States will be reduced by 50%. In addition, the Trailing 
Mundipharma Royalties are subject to reduction by 50% of certain third-party royalty payments or patent litigation damages or 
settlements which might be required to be paid by Verastem if litigation were to arise, with any such reductions capped at 50% 
of the amounts otherwise payable during the applicable royalty payment period. 

The Verastem Agreement expires when each party no longer has any obligations to the other party under the Verastem 
Agreement. Verastem has the right to terminate the Verastem Agreement upon at least 180 days prior written notice to us at any 
time following the earlier of (i) Verastem’s decision to discontinue the DUO Study under certain circumstances as specified in 
the Verastem Agreement and (ii) the determination of whether the DUO Study has met its pre-specified primary endpoint. 
Either party may terminate the Verastem Agreement if the other party materially breaches or defaults in the performance of its 
obligations.  If we terminate the Verastem Agreement for Verastem’s material breach, patent challenge, or insolvency, or if 
Verastem terminates for convenience, then, at our request and subject to our execution of a waiver of certain types of damages, 
Verastem will transition the duvelisib program back to us at Verastem’s cost.  If Verastem terminates for our breach or 
insolvency, Verastem will effect a more limited transition of the duvelisib program to us at our request and cost, subject to our 
execution of a waiver of certain types of damages, and we will thereafter pay to Verastem a low single-digit royalty on net sales 
of Licensed Products. 

We and Verastem have made customary representations and warranties and have agreed to certain customary 

covenants, including confidentiality and indemnification. 

AbbVie 

The AbbVie Agreement 

On September 2, 2014, we entered into a collaboration and license agreement between us and AbbVie Inc., which we 
refer to as the AbbVie Agreement. Under the AbbVie Agreement, we and AbbVie Inc., which we refer to as AbbVie, agreed to 
develop and commercialize products containing duvelisib in oncology indications.  We refer to products containing duvelisib 
included under the AbbVie Agreement as Duvelisib Products.  IPI-549, an orally administered, selective PI3K-gamma inhibitor, 
was excluded from the collaboration.  On June 24, 2016, AbbVie delivered to us a written notice that AbbVie was exercising its 
right to terminate the AbbVie Agreement unilaterally upon 90 days’ written notice, which we refer to as the AbbVie Opt-Out.  
The termination of the AbbVie agreement was effective on September 23, 2016. 

9 

 
 
 
 
Under the terms of the AbbVie Agreement, we and AbbVie agreed to share equally commercial profits or losses of 

Duvelisib Products in the United States, including sharing equally the existing royalty obligations to Mundipharma and Purdue 
for sales of Duvelisib Products in the United States, as well as sharing equally the existing U.S. milestone payment obligations 
to Takeda Pharmaceutical Company Limited, or Takeda, our PI3K program licensor. For more information about obligations to 
Takeda, refer to the section below titled “Takeda.” 

AbbVie had agreed to pay us tiered royalties on net sales of Duvelisib Products outside the United States ranging from 
23.5% to 30.5%, depending on annual net sales of Duvelisib Products by AbbVie, its affiliates and its sublicensees. This tiered 
royalty could have been further reduced based on specified factors, including patent expiry, generic entry, and royalties paid to 
third parties. 

We and AbbVie had shared oversight of development and had agreed to use diligent efforts, as defined in the AbbVie 
Agreement, to carry out our development activities under an agreed upon development plan. We had primary responsibility for 
the conduct of development of Duvelisib Products, unless otherwise agreed, and AbbVie had responsibility for the conduct of 
certain contemplated combination clinical studies, including those examining duvelisib and venetoclax, a selective first-in-class 
B-cell lymphoma 2 inhibitor, which we refer to as the AbbVie Studies. The development and manufacturing costs for the 
AbbVie Studies were shared equally. 

We were responsible for the manufacture of Duvelisib Products until the transition of manufacturing responsibility to 
AbbVie, which we had expected to occur as promptly as practicable while ensuring continuity of supply. Excluding the AbbVie 
Studies, we were responsible for all costs to develop and manufacture Duvelisib Products up to a maximum amount of $667 
million, after which costs were to be shared equally. 

We and AbbVie shared operational responsibility and decision making authority for commercialization of Duvelisib 

Products in the United States. Prior to commercialization and regulatory approval, we recognized the cost of manufacturing as 
a component of research and development and the cost of commercialization as a component of general and administrative 
expenses. During the years ended December 31, 2016, 2015 and 2014, we accounted for AbbVie’s share of the costs as a 
reduction of the related expense. 

Under the AbbVie Agreement, AbbVie paid us a non-refundable $275 million upfront payment in 2014 and a $130 

million milestone payment in November 2015 associated with the completion of enrollment of DYNAMOTM, our Phase 2 
clinical study evaluating the efficacy and safety of duvelisib in patients with refractory indolent non-Hodgkin lymphoma, or 
iNHL. Of the total $405 million received from AbbVie, we allocated $234.3 million to the license which was recognized as 
revenue upon receipt of the upfront payment and achievement of the milestone payment. Revenue related to development 
services and committee services was recognized using the proportionate performance method. We initially estimated that 
services would be performed through 2019. 

The AbbVie Agreement was intended to remain in effect until all development, manufacturing and commercialization 

of Duvelisib Products ceased, unless terminated earlier. AbbVie had the right to terminate the AbbVie Agreement for 
convenience after a specified notice period as described above. 

AbbVie Opt-Out 

Upon formal termination of the AbbVie Agreement on September 23, 2016, we received all rights to the regulatory 

filings related to duvelisib, our license to AbbVie terminated, and AbbVie granted us an exclusive, perpetual, irrevocable, 
royalty-free license, under certain patent rights and know-how controlled by AbbVie, to develop, manufacture and 
commercialize products containing duvelisib, excluding any compound which is covered by patent rights controlled by AbbVie 
or its affiliates, in oncology indications worldwide. 

Neither party has any ongoing financial obligation to the other under the AbbVie Agreement. In connection with the 

AbbVie Opt-Out, AbbVie will not pay any royalties or any of the additional $400 million in milestone payments that we could 

10 

 
 
 
 
 
 
 
 
 
 
 
 
 
have potentially earned under the AbbVie Agreement. During the third quarter of 2016, we and AbbVie finalized the wind-
down plan to ensure a smooth transition of the responsibilities of the parties. We do not expect to receive any further proceeds 
from AbbVie for our wind-down activities, and we do not expect to incur any additional expenses for their clinical wind-down 
services. 

Takeda 

In July 2010, we entered into a development and license agreement with Intellikine, Inc., or Intellikine, under which 

we obtained rights to discover, develop and commercialize pharmaceutical products targeting the delta and/or gamma isoforms 
of PI3K, including duvelisib and IPI-549. In January 2012, Intellikine was acquired by Takeda, acting through its Millennium 
business unit. In December 2012, we amended and restated our development and license agreement with Takeda. We refer to 
our PI3K inhibitor program licensor as Takeda and to the amended and restated development and license agreement, as 
amended by the July 2014 and September 2016 amendments described in more detail below, as the Takeda Agreement. 

Under the terms of the Takeda Agreement, we are obligated to pay Takeda an aggregate of up to $5 million in success-

based milestone payments for the development of a product candidate other than duvelisib, which could include IPI-549. We 
are also obligated to pay Takeda up to an aggregate of $165 million in success-based milestone payments related to the 
approval and commercialization of one product, which could be a product containing IPI-549. 

Except for duvelisib in oncology indications, we are obligated to pay Takeda tiered royalties ranging from 7% to 11% 

on worldwide net sales of products described in the agreement, which could include IPI-549 if successfully developed and 
commercialized. Such royalties are payable until the later to occur of the expiration of specified patent rights and the expiration 
of non-patent regulatory exclusivities in a country, subject to reduction of the royalties and, in certain circumstances, limits on 
the number of products subject to a royalty obligation. 

The Takeda Agreement expires on the later of the expiration of certain patents and the expiration of the royalty 

payment terms for the products, unless earlier terminated in accordance with its terms. Either party may terminate the Takeda 
Agreement on 75 days’ prior written notice if the other party materially breaches the agreement and fails to cure such breach 
within the applicable notice period, provided that the notice period is reduced to 30 days where the alleged breach is non-
payment. Takeda may also terminate the Takeda Agreement if we are not diligent in developing or commercializing the 
licensed products and do not, within three months after notice from Takeda, demonstrate to Takeda’s reasonable satisfaction 
that we have not failed to be diligent. The foregoing periods are subject to extension in certain circumstances. Additionally, 
Takeda may terminate the Takeda Agreement upon 30 days’ prior written notice if we or a related party bring an action 
challenging the validity of any of the licensed patents, provided that we have not withdrawn such action before the end of the 
30-day notice period. We may terminate the agreement at any time upon 180 days’ prior written notice. The Takeda Agreement 
also provides for customary reciprocal indemnification obligations of the parties. 

July 2014 Amendment 

On March 31, 2015, we paid a $52.5 million fee to exercise an option that we purchased from Takeda in July 2014 for 

a one-time upfront payment of $5.0 million. As a result of our exercise of this option, we are no longer obligated under the 
Takeda Agreement to pay to Takeda tiered royalties with respect to worldwide net sales in oncology indications of products 
containing or comprised of duvelisib. 

September 2016 Amendment 

In September 2016, we entered into a second amendment with Takeda.  Under the second amendment, effective as of 

our execution of (i) a license or sublicense of rights under certain intellectual property to use, develop, or commercialize 
duvelisib or (ii) a sale, in an asset sale, of any of our rights necessary to practice duvelisib, each of which ((i) and (ii))  we refer 
to as a qualifying transaction, we are no longer obligated to pay Takeda any remaining milestone payments under the Takeda 

11 

 
 
 
 
 
 
 
 
 
 
Agreement for the development, approval or commercialization of duvelisib. Additionally, upon execution of a qualifying 
transaction, our obligation to use diligent efforts to develop products under the Takeda Agreement is reduced from two products 
to one product. In return, we are obligated to pay Takeda 50% of all revenue arising from each qualifying transaction for 
duvelisib, subject to certain exceptions. We believe the Verastem Agreement constitutes a qualifying transaction. 

Intellectual Property 

Our intellectual property consists of patents, trademarks, trade secrets and know-how. Our ability to compete 

effectively depends in large part on our ability to obtain patents and trademarks for our technologies and products, maintain 
trade secrets, operate without infringing the rights of others and prevent others from infringing our proprietary rights. We will 
be able to protect our proprietary technologies from unauthorized use by third parties only to the extent that they are covered by 
valid and enforceable patents, or are effectively maintained as trade secrets. As a result, patents or other proprietary rights are 
an essential element of our business. 

We have three issued or allowed U.S. patents related to our IPI-549 program, which expire on various dates between 

2033 and 2034, excluding any patent term extension. In addition, we have approximately 70 patents and patent applications 
pending worldwide related to our PI3K-gamma program. Any patents that may issue from our pending patent applications 
would expire between 2033 and 2036, excluding any patent term extension. These patents and patent applications disclose 
compositions of matter, pharmaceutical compositions, methods of use and synthetic methods. 

The term of individual patents depends upon the legal term for patents in the countries in which they are obtained. In 
most countries, including the United States, the patent term is 20 years from the earliest filing date of a non-provisional patent 
application. In the United States, a patent's term may be lengthened by patent term adjustment, which compensates a patentee 
for administrative delays by the United States Patent and Trademark Office, or USPTO, in examining and granting a patent, or 
may be shortened if a patent is terminally disclaimed over an earlier filed patent. The term of a patent that covers a drug or 
biological product may also be eligible for patent term extension when FDA approval is granted, provided statutory and 
regulatory requirements are met. In the future, if and when our product candidates receive approval by the FDA or foreign 
regulatory authorities, we expect to apply for patent term extensions on issued patents covering those drugs, depending upon 
the length of the clinical trials for each drug and other factors. There can be no assurance that any of our pending patent 
applications will issue or that we will benefit from any patent term extension or favorable adjustment to the term of any of our 
patents. 

As with other biotechnology and pharmaceutical companies, our ability to maintain and solidify our proprietary and 

intellectual property position for our product candidates and technologies will depend on our success in obtaining effective 
patent claims and enforcing those claims, if granted. However, our pending patent applications, and any patent applications that 
we may in the future file or license from third parties may not result in the issuance of patents. We also cannot predict the 
breadth of claims that may be allowed or enforced in our patents. Any issued patents that we may receive in the future may be 
challenged, invalidated or circumvented. For example, we cannot be certain of the priority of inventions covered by pending 
third-party patent applications. If third parties prepare and file patent applications in the United States that also claim 
technology or therapeutics to which we have rights, we may have to participate in interference proceedings in the USPTO to 
determine priority of invention, which could result in substantial costs to us, even if the eventual outcome is favorable to us, 
which is highly unpredictable. In addition, because of the extensive time required for clinical development and regulatory 
review of a product candidate we may develop, it is possible that, before any of our product candidates can be commercialized, 
any related patent may expire or remain in force for only a short period following commercialization, thereby limiting 
protection such patent would afford the respective product and any competitive advantage such patent may provide. 

Our policy is to obtain and enforce the patents and proprietary technology rights that are commercially important to 

our business, and we intend to continue to file patent applications to protect such technology and compounds in countries 
where we believe it is commercially reasonable and advantageous to do so. We also rely on trade secrets to protect our 

12 

 
 
 
 
 
 
 
 
 
technology where patent protection is deemed inappropriate or unobtainable. We seek to protect our proprietary information, in 
part, by executing confidentiality agreements with our collaborators and scientific advisors, and non-competition, non-
solicitation, confidentiality, and invention assignment agreements with our employees and consultants. We have also executed 
agreements requiring assignment of inventions with selected scientific advisors and collaborators. The confidentiality 
agreements we enter into are designed to protect our proprietary information and the agreements or clauses requiring 
assignment of inventions to us are designed to grant us ownership of technologies that are developed through our relationship 
with the respective counterparty. We cannot guarantee, however, that these agreements will afford us adequate protection of our 
intellectual property and proprietary information rights. 

Competition 

The pharmaceutical and biotechnology industries are intensely competitive. Many companies, including 

biotechnology, chemical and pharmaceutical companies, are actively engaged in the research and development of drugs for the 
treatment of the same diseases and conditions as our current and potential future product candidates. Many of these companies 
have substantially greater financial and other resources, larger research and development staffs and more extensive marketing 
and manufacturing organizations than we do. In addition, some of them have considerably more experience than us in 
preclinical testing, clinical trials and other regulatory approval procedures. There are also academic institutions, governmental 
agencies and other research organizations that are conducting research in areas in which we are working. They may also 
develop products that may be competitive with our product candidates, either on their own or through collaborative efforts. 

We expect to encounter significant competition for any drugs we develop. Companies that complete clinical trials, 

obtain required regulatory approvals and commence commercial sales of their products before their competitors may achieve a 
significant competitive advantage. We are aware that many other companies or institutions are pursuing the development of 
drugs in the areas in which we are currently seeking to develop our own product candidates, and there may be other companies 
working on competitive projects of which we are not aware. 

Our competitors may commence and complete clinical testing of their product candidates, obtain regulatory approvals 
and begin commercialization of their products sooner than we may for our own product candidates. These competitive products 
may have superior safety or efficacy, or be manufactured less expensively, than our product candidates. If we are unable to 
compete effectively against these companies on the basis of safety, efficacy or cost, then we may not be able to commercialize 
our product candidates or achieve a competitive position in the market. This would adversely affect our business. 

We believe that IPI-549 is the only PI3K-gamma selective inhibitor in clinical development. However, there are many 
competitors developing or commercializing therapies targeting macrophage biology, including the following competitors which 
we believe to be conducting clinical studies of product candidates targeting one or more aspects of macrophage biology: Incyte 
Corporation (through its collaboration with Calithera Inc.), Five Prime Therapeutics, Inc., Plexxikon Inc., Eli Lilly and 
Company, Amgen Inc., F. Hoffmann-La Roche Ltd, Forty Seven Inc., Celgene Corporation, Trillium Therapeutics Inc., Pfizer, 
XBiotech, Inc., AbbVie Inc., Takeda Pharmaceuticals, International, Inc., Novartis AG, Efranat Ltd., Seattle Genetics, Inc., 
Apexigen Inc., X4 Pharmaceuticals, Inc. and Alligator Bioscience AB. 

Research and Development 

As of March 1, 2017, our research and development group consisted of 8 employees, of whom 7 hold Ph.D. or M.D. 

degrees and the remaining employee holds a masters degree. Our research and development group is focused on preclinical 
research, translational medicine, clinical trials and manufacturing technologies. Our research and development expense for the 
years ended December 31, 2016, 2015 and 2014 was approximately $119.6 million, $199.1 million, and $143.6 million, 
respectively. 

13 

 
 
 
 
 
 
 
 
 
 
Manufacturing and Supply 

We rely primarily on third parties, and in some instances we rely on only one third party, to manufacture critical raw 

materials, drug substance and final drug product for our research, preclinical development and clinical trial activities. 
Commercial quantities of any drugs we seek to develop will have to be manufactured in facilities and by processes that comply 
with the United States Food and Drug Administration, or FDA, and other regulations, and we plan to rely on third parties to 
manufacture commercial quantities of any products we successfully develop. 

Sales and Marketing 

We currently have no marketing, commercial sales, or distribution capabilities. We do, however, currently have 

worldwide commercialization rights for our PI3K-gamma inhibitor program, including IPI-549. In order to commercialize IPI-
549, if and when it is approved for sale, we will need to, and we intend to, develop the necessary marketing, sales and 
distribution capabilities. 

Government Regulation and Product Approvals 

Government authorities in the United States, at the federal, state and local level, and in other countries and jurisdictions, 
including the European Union, extensively regulate, among other things, the research, development, testing, manufacture, 
quality control, approval, packaging, storage, recordkeeping, labeling, advertising, promotion, distribution, marketing, post-
approval monitoring and reporting, and import and export of pharmaceutical products. The processes for obtaining marketing 
approvals in the United States and in foreign countries and jurisdictions, along with subsequent compliance with applicable 
statutes and regulations and other regulatory authorities, require the expenditure of substantial time and financial resources. 

Review and Approval of Drugs in the United States 

In the United States, the FDA approves and regulates drugs under the Federal Food, Drug, and Cosmetic Act, or 

FDCA, and implementing regulations. The failure to comply with requirements under the FDCA and other applicable laws at 
any time during the product development process, approval process or after approval may subject an applicant and/or sponsor 
to a variety of administrative or judicial sanctions, including refusal by the FDA to approve pending applications, withdrawal of 
an approval, imposition of a clinical hold, issuance of warning letters and other types of 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 investigations and penalties brought by the FDA and the Department of 
Justice or other governmental entities. 

A product candidate must be approved by the FDA through the new drug application, or NDA. An applicant seeking 

approval to market and distribute a new drug product in the United States must typically undertake the following: 

•  

•  

•  

completion of preclinical laboratory tests, animal studies and formulation studies in compliance with the FDA’s 
good laboratory practice, or GLP, regulations; 
submission to the FDA of an investigational new drug, or IND, application, which must take effect before human 
clinical trials may begin; 
approval by an independent institutional review board, or IRB, representing each clinical site before each clinical 
trial may be initiated; 

•   performance of adequate and well-controlled human clinical trials in accordance with good clinical practices, or 

GCP, to establish the safety and efficacy of the proposed drug product for each indication; 

•   preparation and submission to the FDA of an NDA, requesting marketing for one or more proposed indications; 
•  
•  

review by an FDA advisory committee, where appropriate or if applicable; 
satisfactory completion of one or more FDA inspections of the manufacturing facility or facilities at which the 
product, or components thereof, are produced to assess compliance with current Good Manufacturing Practices, or 
cGMP, requirements and to assure that the facilities, methods and controls are adequate to preserve the product’s 
identity, strength, quality and purity; 

14 

 
 
 
 
 
 
 
•  

satisfactory completion of FDA audits of clinical trial sites to assure compliance with GCPs and the integrity of 
the clinical data; 

•   payment of user fees and securing FDA approval of the NDA; and 
•  

compliance with any post-approval requirements, including the potential requirement to implement a Risk 
Evaluation and Mitigation Strategy, or REMS, and the potential requirement to conduct post-approval studies. 

Preclinical Studies 

Before an applicant begins testing a compound with potential therapeutic value in humans, the drug candidate enters 
the preclinical testing stage. Preclinical studies include laboratory evaluation of product chemistry, toxicity and formulation, 
and the purity and stability of the drug substance, as well as in vitro and animal studies to assess the potential safety and 
activity of the drug for initial testing in humans and to establish a rationale for therapeutic use. The conduct of preclinical 
studies is subject to federal regulations and requirements, including GLP regulations. Applicants usually must complete some 
long-term nonclinical testing, such as animal tests of reproductive adverse events and carcinogenicity, and must also develop 
additional information about the chemistry and physical characteristics of the drug and finalize a process for manufacturing the 
drug in commercial quantities in accordance with cGMP requirements. The manufacturing process must be capable of 
consistently producing quality batches of the drug candidate and, among other things, the manufacturer must develop methods 
for testing the identity, strength, quality and purity of the final drug product. Additionally, appropriate packaging must be 
selected and tested and stability studies must be conducted to demonstrate that the drug candidate does not undergo 
unacceptable deterioration over its shelf life. Preclinical tests and studies can take several years to complete. 

The IND Process 

An IND is an exemption from the FDCA that allows an unapproved drug to be shipped in interstate commerce for use 

in an investigational clinical trial and a request for FDA authorization to administer an investigational drug to humans. Such 
authorization must be secured prior to interstate shipment and administration of any new drug that is not the subject of an 
approved NDA. In support of a request for an IND, applicants must submit a protocol for each clinical trial and any subsequent 
protocol amendments must be submitted to the FDA as part of the IND. In addition, the results of the preclinical tests, together 
with manufacturing information, analytical data, any available clinical data or literature and plans for clinical trials, among 
other things, are submitted to the FDA as part of an IND. The FDA requires a 30-day waiting period after the filing of each IND 
before clinical trials may begin. This waiting period is designed to allow the FDA to review the IND to determine whether 
human research subjects will be exposed to unreasonable health risks. At any time during this 30-day period, the FDA may 
raise concerns or questions about the conduct of the trials as outlined in the IND and impose a clinical hold. In this case, the 
IND sponsor and the FDA must resolve any outstanding concerns before clinical trials can begin. 

Following commencement of a clinical trial under an IND, the FDA may also place a clinical hold or partial clinical 
hold on that trial. A clinical hold is an order issued by the FDA to the sponsor to delay a proposed clinical investigation or to 
suspend an ongoing investigation. A partial clinical hold is a delay or suspension of only part of the clinical work requested 
under the IND. For example, a specific protocol or part of a protocol is not allowed to proceed, while other protocols may do 
so. No more than 30 days after imposition of a clinical hold or partial clinical hold, the FDA will provide the sponsor a written 
explanation of the basis for the hold. Following issuance of a clinical hold or partial clinical hold, an investigation may only 
resume after the FDA has notified the sponsor that the investigation may proceed. The FDA will base that determination on 
information provided by the sponsor correcting the deficiencies previously cited or otherwise satisfying the FDA that the 
investigation can proceed. 

A sponsor may choose, but is not required, to conduct a foreign clinical study under an IND. When a foreign clinical 

study is conducted under an IND, all FDA IND requirements must be met unless waived. When the foreign clinical study is not 
conducted under an IND, the sponsor must ensure that the study complies with FDA certain regulatory requirements in order to 
use the study as support for an IND or application for marketing approval. Specifically, on April 28, 2008, the FDA amended its 
regulations governing the acceptance of foreign clinical studies not conducted under an investigational new drug application as 

15 

 
 
 
 
 
 
 
support for an IND or a new drug application. The final rule provides that such studies must be conducted in accordance with 
good clinical practice, or GCP, including review and approval by an independent ethics committee, or IEC, and informed 
consent from subjects. The GCP requirements in the final rule encompass both ethical and data integrity standards for clinical 
studies. The FDA’s regulations are intended to help ensure the protection of human subjects enrolled in non-IND foreign 
clinical studies, as well as the quality and integrity of the resulting data. They further help ensure that non-IND foreign studies 
are conducted in a manner comparable to that required for IND studies. 

In addition to the foregoing IND requirements, an IRB representing each institution participating in the clinical trial 

must review and approve the plan for any clinical trial before it commences at that institution, and the IRB must conduct 
continuing review and reapprove the study at least annually. The IRB must review and approve, among other things, the study 
protocol and informed consent information to be provided to study subjects. An IRB must operate in compliance with FDA 
regulations. An IRB can suspend or terminate approval of a clinical trial at its institution, or an institution it represents, if the 
clinical trial is not being conducted in accordance with the IRB’s requirements or if the product candidate has been associated 
with unexpected serious harm to patients. 

Additionally, some trials are overseen by an independent group of qualified experts organized by the trial sponsor, 

known as a data safety monitoring board or committee. This group provides authorization for whether or not a trial may move 
forward at designated check points based on access that only the group maintains to available data from the study. Suspension 
or termination of development during any phase of clinical trials can occur if it is determined that the participants or patients 
are being exposed to an unacceptable health risk. Other reasons for suspension or termination may be made by us based on 
evolving business objectives and/or competitive climate. 

Information about certain clinical trials must be submitted within specific timeframes to the National Institutes of 

Health, or NIH, for public dissemination on its ClinicalTrials.gov website. 

Human Clinical Trials in Support of an NDA 

Clinical trials involve the administration of the investigational product to human subjects under the supervision of 

qualified investigators in accordance with GCP requirements, which include, among other things, the requirement that all 
research subjects provide their informed consent in writing before their participation in any clinical trial. Clinical trials are 
conducted under written study protocols detailing, among other things, the inclusion and exclusion criteria, the objectives of the 
study, the parameters to be used in monitoring safety and the effectiveness criteria to be evaluated. 

Human clinical trials are typically conducted in four sequential phases, which may overlap or be combined: 
•   Phase 1. The drug is initially introduced into a small number of healthy human subjects or, in certain indications 
such as cancer, patients with the target disease or condition (e.g., cancer) and tested for safety, dosage tolerance, 
absorption, metabolism, distribution, excretion and, if possible, to gain an early indication of its effectiveness and 
to determine optimal dosage. 

•   Phase 2. The drug is administered to a limited patient population to identify possible adverse effects and safety 
risks, to preliminarily evaluate the efficacy of the product for specific targeted diseases and to determine dosage 
tolerance and optimal dosage. 

•   Phase 3. These clinical trials are commonly referred to as “pivotal” studies, which denotes a study that presents 
the data that the FDA or other relevant regulatory agency will use to determine whether or not to approve a drug. 
The drug is administered to an expanded patient population, generally at geographically dispersed clinical trial 
sites, in well-controlled clinical trials to generate enough data to statistically evaluate the efficacy and safety of 
the product for approval, identify adverse effects, establish the overall risk-benefit profile of the product and to 
provide adequate information for the labeling of the product. 

•   Phase 4. Post-approval studies 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. 

16 

 
 
 
 
 
 
 
 
 
Progress reports detailing the results of the clinical trials must be submitted at least annually to the FDA and more 

frequently if serious adverse events occur. In addition, IND safety reports must be submitted to the FDA for any of the 
following: serious and unexpected suspected adverse reactions; findings from other studies or animal or in vitro testing that 
suggest a significant risk in humans exposed to the drug; and any clinically important increase in the case of a serious suspected 
adverse reaction over that listed in the protocol or investigator brochure. The FDA or the sponsor or the data monitoring 
committee may suspend or terminate 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, or an institution it represents, if the clinical trial is not being conducted in accordance with the IRB’s 
requirements or if the drug has been associated with unexpected serious harm to patients. The FDA will typically inspect one or 
more clinical sites to assure compliance with GCP and the integrity of the clinical data submitted. 

Concurrent with clinical trials, companies often complete additional animal studies and must also develop additional 

information about the chemistry and physical characteristics of the drug 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 drug candidate and, among other things, must develop methods for testing the 
identity, strength, quality, purity, and potency of the final drug. Additionally, appropriate packaging must be selected and tested 
and stability studies must be conducted to demonstrate that the drug candidate does not undergo unacceptable deterioration 
over its shelf life. 

Review of an NDA by the FDA 

If clinical trials are successful, the next step in the drug development process is the preparation and submission to the 
FDA of a NDA. The NDA is the vehicle through which drug applicants formally propose that the FDA approve a new drug for 
marketing and sale in the United States for one or more indications. The NDA must contain a description of the manufacturing 
process and quality control methods, as well as results of preclinical tests, toxicology studies, clinical trials and proposed 
labeling, among other things. Every new drug must be the subject of an approved NDA before it may be commercialized in the 
United States. Under federal law, the submission of most NDAs is subject to an application user fee, which for federal fiscal 
year 2017 is $2,038,100.  The sponsor of an approved NDA is also subject to annual product and establishment user fees, which 
for fiscal year 2017 are $97,750 per product and $512,000 per establishment. Certain exceptions and waivers are available for 
some of these fees, such as an exception from the application fee for drugs with orphan designation and a waiver for certain 
small businesses, an exception from the establishment fee when the establishment does not engage in manufacturing the drug 
during a particular fiscal year, and an exception from the product fee for a drug that is the same as another drug approved under 
an abbreviated pathway. 

Following submission of an NDA, the FDA conducts a preliminary review of an NDA generally within 60 calendar 

days of its receipt and strives to inform the sponsor by the 74th day after the FDA’s receipt of the submission to determine 
whether the application is sufficiently complete to permit substantive review. The FDA may request additional information 
rather than accept an NDA for filing. In this event, the application must be resubmitted with the additional information. The 
resubmitted application is also subject to review before the FDA accepts it for filing. Once the submission is accepted for filing, 
the FDA begins an in-depth substantive review. The FDA has agreed to certain performance goals in the review process of 
NDAs. Under that agreement, 90% of applications seeking approval of New Molecular Entities, or NMEs, are meant to be 
reviewed within ten months from the date on which FDA accepts the NDA for filing, and 90% of applications for NMEs that 
have been designated for “priority review” are meant to be reviewed within six months of the filing date. For applications 
seeking approval of drugs that are not NMEs, the ten-month and six-month review periods run from the date that FDA receives 
the application. The review process and the Prescription Drug User Fee Act goal date may be extended by the FDA for three 
additional months to consider new information or clarification provided by the applicant to address an outstanding deficiency 
identified by the FDA following the original submission. 

Before approving an NDA, the FDA typically will inspect the facility or facilities where the product is or will be 
manufactured. These pre-approval inspections may cover all facilities associated with an NDA submission, including drug 

17 

 
 
 
 
 
 
 
component manufacturing (e.g., active pharmaceutical ingredients), finished drug product manufacturing, and control testing 
laboratories. The FDA will not approve an application 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 NDA, the FDA will typically inspect one or more clinical sites to assure 
compliance with GCP. 

In addition, as a condition of approval, the FDA may require an applicant to develop a REMS. REMS use risk 
minimization strategies beyond the professional labeling to ensure that the benefits of the product outweigh the potential risks. 
To determine whether a REMS is needed, the FDA will consider the size of the population likely to use the product, seriousness 
of the disease, expected benefit of the product, expected duration of treatment, seriousness of known or potential adverse 
events, and whether the product is a new molecular entity. REMS can include medication guides, physician communication 
plans for healthcare professionals, and elements to assure safe use, or ETASU. ETASU may include, but are not limited to, 
special training or certification for prescribing or dispensing, dispensing only under certain circumstances, special monitoring, 
and the use of patient registries. The FDA may require a REMS before approval or post-approval if it becomes aware of a 
serious risk associated with use of the product. The requirement for a REMS can materially affect the potential market and 
profitability of a product. 

The FDA may refer an application for a novel drug to an advisory committee or explain why such referral was not 

made. Typically, an advisory committee is a panel of independent experts, including clinicians and other scientific experts, that 
reviews, evaluates and provides 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. 

The FDA’s Decision on an NDA 

On the basis of the FDA’s evaluation of the NDA and accompanying information, including the results of the 

inspection of the manufacturing facilities, the FDA may issue an approval letter or a complete response letter. An approval 
letter authorizes commercial marketing of the product with specific prescribing information for specific indications. A complete 
response letter generally outlines the deficiencies in the submission and may require substantial additional testing or 
information in order for the FDA to reconsider the application. If and when those deficiencies have been addressed to the 
FDA’s satisfaction in a resubmission of the NDA, the FDA will issue an approval letter. The FDA has committed to reviewing 
such resubmissions in two or six months depending on the type of information included. Even with submission of this 
additional information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval. 

If the FDA approves a product, it may limit the approved indications for use for the product, require that 
contraindications, warnings or precautions be included in the product labeling, require that post-approval studies, including 
Phase 4 clinical trials, be conducted to further assess the drug’s safety after approval, require testing and surveillance programs 
to monitor the product after commercialization, or impose other conditions, including distribution restrictions or other risk 
management mechanisms, including REMS, which can materially affect the potential market and profitability of the product. 
The FDA may prevent or limit further marketing of a product based on the results of post-market studies or surveillance 
programs. After approval, many types of changes to the approved product, such as adding new indications, manufacturing 
changes and additional labeling claims, are subject to further testing requirements and FDA review and approval. 

Fast Track, Breakthrough Therapy, Priority Review and Regenerative Advanced Therapy Designations 

The FDA is authorized to designate certain products for expedited review if they are intended to address an unmet 

medical need in the treatment of a serious or life-threatening disease or condition. These programs are referred to as fast track 
designation, breakthrough therapy designation, priority review designation and regenerative advanced therapy designation. 

18 

 
 
 
 
 
 
 
 
 
Specifically, the FDA may designate a product for Fast Track review if it is intended, whether alone or in combination 
with one or more other products, for the treatment of a serious or life-threatening disease or condition, and it demonstrates the 
potential to address unmet medical needs for such a disease or condition. For Fast Track products, sponsors may have greater 
interactions with the FDA and the FDA may initiate review of sections of a Fast Track product’s application before the 
application is complete. This rolling review may be available if the FDA determines, after preliminary evaluation of clinical 
data submitted by the sponsor, that a Fast Track product may be effective. The sponsor must also provide, and the FDA must 
approve, a schedule for the submission of the remaining information and the sponsor must pay applicable user fees. However, 
the FDA’s time period goal for reviewing a Fast Track application does not begin until the last section of the application is 
submitted. In addition, the Fast Track designation may be withdrawn by the FDA if the FDA believes that the designation is no 
longer supported by data emerging in the clinical trial process. 

Second, a product may be designated as a Breakthrough Therapy if it is intended, either alone or in combination with 

one or more other products, to treat a serious or life-threatening disease or condition and preliminary clinical evidence indicates 
that the product may demonstrate substantial improvement over existing therapies on one or more clinically significant 
endpoints, such as substantial treatment effects observed early in clinical development. The FDA may take certain actions with 
respect to Breakthrough Therapies, including holding meetings with the sponsor throughout the development process; 
providing timely advice to the product sponsor regarding development and approval; involving more senior staff in the review 
process; assigning a cross-disciplinary project lead for the review team; and taking other steps to design the clinical trials in an 
efficient manner. 

Third, the FDA may designate a product for priority review if it is a product that treats a serious condition and, if 

approved, would provide a significant improvement in safety or effectiveness. The FDA determines, on a case-by-case basis, 
whether the proposed product represents a significant improvement when compared with other available therapies. Significant 
improvement may be illustrated by evidence of increased effectiveness in the treatment of a condition, elimination or 
substantial reduction of a treatment-limiting product reaction, documented enhancement of patient compliance that may lead to 
improvement in serious outcomes, and evidence of safety and effectiveness in a new subpopulation. A priority designation is 
intended to direct overall attention and resources to the evaluation of such applications, and to shorten the FDA’s goal for 
taking action on a marketing application from ten months to six months. 

Finally, with passage of the 21st Century Cures Act, or the Cures Act, in December 2016, Congress authorized the 

FDA to accelerate review and approval of products designated as regenerative advanced therapies.  A product is eligible for this 
designation if it is a regenerative medicine therapy that is intended to treat, modify, reverse or cure a serious or life-threatening 
disease or condition and preliminary clinical evidence indicates that the drug has the potential to address unmet medical needs 
for such disease or condition.  The benefits of a regenerative advanced therapy designation include early interactions with FDA 
to expedite development and review, benefits available to breakthrough therapies, potential eligibility for priority review and 
accelerated approval based on surrogate or intermediate endpoints. 

Accelerated Approval Pathway 

The FDA may grant accelerated approval to a product for a serious or life-threatening condition that provides 
meaningful therapeutic advantage to patients over existing treatments based upon a determination that the product has an effect 
on a surrogate endpoint that is reasonably likely to predict clinical benefit. The FDA may also grant accelerated approval for 
such a condition when the product has an effect on an intermediate clinical endpoint that can be measured earlier than an effect 
on irreversible morbidity or mortality, or IMM, and that is reasonably likely to predict an effect on irreversible morbidity or 
mortality or other clinical benefit, taking into account the severity, rarity, or prevalence of the condition and the availability or 
lack of alternative treatments. Products granted accelerated approval must meet the same statutory standards for safety and 
effectiveness as those granted regular approval. 

19 

 
 
 
 
 
 
 
 
 
For the purposes of accelerated approval, a surrogate endpoint is a marker, such as a laboratory measurement, 

radiographic image, physical sign, or other measure that is thought to predict clinical benefit, but is not itself a measure of 
clinical benefit. Surrogate endpoints can often be measured more easily or more rapidly than clinical endpoints. An 
intermediate clinical endpoint is a measurement of a therapeutic effect that is considered reasonably likely to predict the clinical 
benefit of a product, such as an effect on IMM. The FDA has limited experience with accelerated approvals based on 
intermediate clinical endpoints, but has indicated that such endpoints generally may support accelerated approval where the 
therapeutic effect measured by the endpoint is not itself a clinical benefit and basis for regular approval, if there is a basis for 
concluding that the therapeutic effect is reasonably likely to predict the ultimate clinical benefit of a product. 

The accelerated approval pathway is most often used in settings in which the course of a disease is long and an 

extended period of time is required to measure the intended clinical benefit of a product, even if the effect on the surrogate or 
intermediate clinical endpoint occurs rapidly. Thus, accelerated approval has been used extensively in the development and 
approval of products for treatment of a variety of cancers in which the goal of therapy is generally to improve survival or 
decrease morbidity and the duration of the typical disease course requires lengthy and sometimes large trials to demonstrate a 
clinical or survival benefit. 

The accelerated approval pathway is usually contingent on a sponsor’s agreement to conduct, in a diligent manner, 

additional post-approval confirmatory studies to verify and describe the product’s clinical benefit. As a result, a product 
candidate approved on this basis is subject to rigorous post-marketing compliance requirements, including the completion of 
Phase 4 or post-approval clinical trials to confirm the effect on the clinical endpoint. Failure to conduct required post-approval 
studies, or confirm a clinical benefit during post-marketing studies, would allow the FDA to withdraw the product from the 
market on an expedited basis. All promotional materials for product candidates approved under accelerated regulations are 
subject to prior review by the FDA. 

Post-Approval Requirements 

Drugs manufactured or distributed pursuant to FDA approvals are subject to pervasive and continuing regulation by 

the FDA, including, among other things, requirements relating to recordkeeping, periodic reporting, product sampling and 
distribution, advertising and promotion and reporting of adverse experiences with the product. After approval, most changes to 
the approved product, such as adding new indications or other labeling claims, are subject to prior FDA review and approval. 
There also are continuing, annual user fee requirements for any marketed products and the establishments at which such 
products are manufactured, as well as new application fees for supplemental applications with clinical data. 

In addition, drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are 
required to register their establishments with the FDA and state agencies, and are subject to periodic unannounced inspections 
by the FDA and these state agencies for compliance with cGMP requirements. Changes to the manufacturing process are 
strictly regulated and often require prior FDA approval before being implemented. FDA regulations also require investigation 
and correction of any deviations from cGMP and impose reporting and documentation requirements upon the sponsor and any 
third-party manufacturers that the sponsor may decide to use. Accordingly, manufacturers must continue to expend time, 
money, and effort in the area of production and quality control to maintain cGMP compliance. 

Once an approval is granted, the FDA may withdraw the approval if compliance with regulatory requirements and 

standards is not maintained or if problems occur after the product reaches the market. Later discovery of previously unknown 
problems with a product, including adverse events of unanticipated severity or frequency, or with manufacturing processes, or 
failure to comply with regulatory requirements, may result in revisions to the approved labeling to add new safety information; 
imposition of post-market studies or clinical trials to assess new safety risks; or imposition of distribution or other restrictions 
under a REMS program. Other potential consequences include, among other things: 

•  

•  

restrictions on the marketing or manufacturing of the product, suspension of the approval, or complete withdrawal 
of the product from the market or product recalls; 
fines, warning letters or holds on post-approval clinical trials; 

20 

 
 
 
 
 
 
 
 
•  

refusal of the FDA to approve pending NDAs or supplements to approved NDAs, or suspension or revocation of 
product license approvals; 

•   product seizure or detention, or refusal to permit the import or export of products; or 
•  

injunctions or the imposition of civil or criminal penalties. 

The FDA strictly regulates marketing, labeling, advertising and promotion of products that are placed on the market. 

Drugs may be promoted only for the approved indications and in accordance with the provisions of the approved label. The 
FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses, and a company 
that is found to have improperly promoted off-label uses may be subject to significant liability. 

In addition, the distribution of prescription pharmaceutical products is subject to the Prescription Drug Marketing Act, 

or PDMA, and its implementing regulations, as well as the Drug Supply Chain Security Act, or DSCA, which regulate the 
distribution and tracing of prescription drugs and prescription drug samples at the federal level, and set minimum standards for 
the regulation of drug distributors by the states. The PDMA, its implementing regulations and state laws limit the distribution 
of prescription pharmaceutical product samples, and the DSCA imposes requirements to ensure accountability in distribution 
and to identify and remove counterfeit and other illegitimate products from the market. 

Abbreviated New Drug Applications for Generic Drugs 

In 1984, with passage of the Hatch-Waxman Amendments to the FDCA, Congress established an abbreviated 
regulatory scheme authorizing the FDA to approve generic drugs that are shown to contain the same active ingredients as, and 
to be bioequivalent to, drugs previously approved by the FDA pursuant to NDAs. To obtain approval of a generic drug, an 
applicant must submit an abbreviated new drug application, or ANDA, to the agency. An ANDA is a comprehensive submission 
that contains, among other things, data and information pertaining to the active pharmaceutical ingredient, bioequivalence, drug 
product formulation, specifications and stability of the generic drug, as well as analytical methods, manufacturing process 
validation data and quality control procedures. ANDAs are “abbreviated” because they generally do not include preclinical and 
clinical data to demonstrate safety and effectiveness. Instead, in support of such applications, a generic manufacturer may rely 
on the preclinical and clinical testing previously conducted for a drug product previously approved under an NDA, known as 
the reference-listed drug, or RLD. 

Specifically, in order for an ANDA to be approved, the FDA must find that the generic version is identical to the RLD 

with respect to the active ingredients, the route of administration, the dosage form, the strength of the drug and the conditions 
of use of the drug. At the same time, the FDA must also determine that the generic drug is “bioequivalent” to the innovator 
drug. Under the statute, a generic drug is bioequivalent to a RLD if “the rate and extent of absorption of the drug do not show a 
significant difference from the rate and extent of absorption of the listed drug...” 

Upon approval of an ANDA, the FDA indicates whether the generic product is “therapeutically equivalent” to the 

RLD in its publication “Approved Drug Products with Therapeutic Equivalence Evaluations,” also referred to as the “Orange 
Book.” Physicians and pharmacists consider a therapeutic equivalent generic drug to be fully substitutable for the RLD. In 
addition, by operation of certain state laws and numerous health insurance programs, the FDA’s designation of therapeutic 
equivalence often results in substitution of the generic drug without the knowledge or consent of either the prescribing 
physician or patient. 

Under the Hatch-Waxman Amendments, the FDA may not approve an ANDA until any applicable period of non-

patent exclusivity for the RLD has expired. The FDCA provides a period of five years of non-patent data exclusivity for a new 
drug containing a new chemical entity. For the purposes of this provision, a new chemical entity, or NCE, is a drug that 
contains no active moiety that has previously been approved by the FDA in any other NDA. An active moiety is the molecule 
or ion responsible for the physiological or pharmacological action of the drug substance. In cases where such NCE exclusivity 
has been granted, an ANDA may not be filed with the FDA until the expiration of five years unless the submission is 

21 

 
 
 
 
 
 
 
 
 
accompanied by a Paragraph IV certification (discussed below), in which case the applicant may submit its application four 
years following the original product approval. 

The FDCA also provides for a period of three years of exclusivity if the NDA includes reports of one or more new 

clinical investigations, other than bioavailability or bioequivalence studies, that were conducted by or for the applicant and are 
essential to the approval of the application. This three-year exclusivity period often protects changes to a previously approved 
drug product, such as a new dosage form, route of administration, combination or indication. Three-year exclusivity would be 
available for a drug product that contains a previously approved active moiety, provided the statutory requirement for a new 
clinical investigation is satisfied. Unlike five-year NCE exclusivity, an award of three-year exclusivity does not block the FDA 
from accepting ANDAs seeking approval for generic versions of the drug as of the date of approval of the original drug 
product. The FDA typically makes decisions about awards of data exclusivity shortly before a product is approved. 

505(b)(2) NDAs 

NDAs for most new drug products are based on two full clinical studies which must contain substantial evidence of 
the safety and efficacy of the proposed new product. These applications are submitted under Section 505(b)(1) of the FDCA. 
The FDA is, however, authorized to approve an alternative type of NDA under Section 505(b)(2) of the FDCA. This type of 
application allows the applicant to rely, in part, on the FDA’s previous findings of safety and efficacy for a similar product or 
published literature. Specifically, Section 505(b)(2) applies to NDAs for a drug for which the investigations made to show 
whether or not the drug is safe for use and effective in use and relied upon by the applicant for approval of the application 
“were not conducted by or for the applicant and for which the applicant has not obtained a right of reference or use from the 
person by or for whom the investigations were conducted.” 

Thus, Section 505(b)(2) authorizes the FDA to approve an NDA based on safety and effectiveness data that were not 

developed by the applicant. NDAs filed under Section 505(b)(2) may provide an alternate and potentially more expeditious 
pathway to FDA approval for new or improved formulations or new uses of previously approved products. If the 505(b)(2) 
applicant can establish that reliance on the FDA’s previous approval is scientifically appropriate, the applicant may eliminate 
the need to conduct certain preclinical or clinical studies of the new product. The FDA may also require companies to perform 
additional studies or measurements to support the change from the approved product. The FDA may then approve the new drug 
candidate for all or some of the label indications for which the referenced product has been approved, as well as for any new 
indication sought by the Section 505(b)(2) applicant. 

Hatch-Waxman Patent Certification and the 30-Month Stay 

Upon approval of an NDA or a supplement thereto, NDA sponsors are required to list with the FDA each patent with 

claims that cover the applicant’s product or an approved method of using the product. Each of the patents listed by the NDA 
sponsor is published in the Orange Book. When an ANDA or 505(b)(2) applicant files its application with the FDA, the 
applicant is required to certify to the FDA concerning any patents listed for the reference product in the Orange Book, except 
for patents covering methods of use for which the ANDA applicant is not seeking approval. Specifically, the applicant must 
certify with respect to each patent that: 

•  
•  
•  

•  

the required patent information has not been filed; 
the listed patent has expired; 
the listed patent has not expired, but will expire on a particular date and approval is sought after patent expiration; 
or 
the listed patent is invalid, unenforceable or will not be infringed by the new product. 

A certification that the new product will not infringe the already approved product’s listed patents or that such patents 

are invalid or unenforceable is called a Paragraph IV certification. If the applicant does not challenge the listed patents or 
indicates that it is not seeking approval of a patented method of use, the application will not be approved until all the listed 

22 

 
 
 
 
 
 
 
 
patents claiming the referenced product have expired (other than method of use patents involving indications for which the 
applicant is not seeking approval). 

If the ANDA or 505(b)(2) applicant has provided a Paragraph IV certification to the FDA, the applicant must also send 

notice of the Paragraph IV certification to the NDA and patent holders once the ANDA or the 505(b)(2) application has been 
accepted for filing by the FDA. The NDA and patent holders may then initiate a patent infringement lawsuit in response to the 
notice of the Paragraph IV certification. The filing of a patent infringement lawsuit within 45 days after the receipt of a 
Paragraph IV certification automatically prevents the FDA from approving the ANDA or 505(b)(2) application until the earliest 
of 30 months after the receipt of the Paragraph IV notice, expiration of the patent, or a decision in the infringement case that is 
favorable to the applicant. The ANDA or 505(b)(2) application also will not be approved until any applicable non-patent 
exclusivity listed in the Orange Book for the branded reference drug has expired. 

Pediatric Studies and Exclusivity 

Under the Pediatric Research Equity Act, an NDA or supplement thereto must contain data that are adequate to assess 

the safety and effectiveness of the drug product for the claimed indications in all relevant pediatric subpopulations, and to 
support dosing and administration for each pediatric subpopulation for which the product is safe and effective. With enactment 
of the Food and Drug Administration Safety and Innovation Act, or the FDASIA, in 2012, sponsors must also submit pediatric 
study plans prior to the assessment data. Those plans must contain an outline of the proposed pediatric study or studies the 
applicant plans to conduct, including study objectives and design, any deferral or waiver requests, and any other information 
required by regulation. The applicant, the FDA, and the FDA’s internal review committee must then review the information 
submitted, consult with each other, and agree upon a final plan. The FDA or the applicant may request an amendment to the 
plan at any time. 

The FDA may, on its own initiative or at the request of the applicant, grant deferrals for submission of some or all 

pediatric data until after approval of the product for use in adults, or full or partial waivers from the pediatric data requirements. 
Additional requirements and procedures relating to deferral requests and requests for extension of deferrals are contained in 
FDASIA. Unless and until FDA promulgates a regulation stating otherwise, the pediatric data requirements do not apply to 
products with orphan designation. 

Pediatric exclusivity is another type of non-patent marketing exclusivity in the United States and, if granted, provides 

for the attachment of an additional six months of marketing protection to the term of any existing regulatory exclusivity, 
including the non-patent and orphan exclusivity. This six-month exclusivity may be granted if an NDA sponsor submits 
pediatric data that fairly respond to a written request from the FDA for such data. The data do not need to show the product to 
be effective in the pediatric population studied; rather, if the clinical trial is deemed to fairly respond to the FDA’s request, the 
additional protection is granted. If reports of requested pediatric studies are submitted to and accepted by the FDA within the 
statutory time limits, whatever statutory or regulatory periods of exclusivity or patent protection cover the product are extended 
by six months. This is not a patent term extension, but it effectively extends the regulatory period during which the FDA cannot 
approve another application. With regard to patents, the six-month pediatric exclusivity period will not attach to any patents for 
which an ANDA or 505(b)(2) applicant submitted a paragraph IV patent certification, unless the NDA sponsor or patent owner 
first obtains a court determination that the patent if valid and infringed by the proposed product. 

Orphan Drug Designation and Exclusivity 

Under the Orphan Drug Act, the FDA may designate a drug product as an “orphan drug” if it is intended to treat a rare 

disease or condition, generally meaning that it affects fewer than 200,000 individuals in the United States, or more in cases in 
which there is no reasonable expectation that the cost of developing and making a drug product available in the United States 
for treatment of the disease or condition will be recovered from sales of the product. A company must request orphan drug 
designation before submitting an NDA for the drug and rare disease or condition. If the request is granted, the FDA will 
disclose the identity of the therapeutic agent and its potential use. Orphan drug designation does not shorten the Prescriptoin 

23 

 
 
 
 
 
 
 
 
Drug User Fee Act, or PDUFA, goal dates for the regulatory review and approval process, although it does convey certain 
advantages such as tax benefits and exemption from the PDUFA application fee. 

If a product with orphan designation receives the first FDA approval for the disease or condition for which it has such 

designation or for a select indication or use within the rare disease or condition for which it was designated, the product 
generally will receive orphan drug exclusivity. Orphan drug exclusivity means that the FDA may not approve another sponsor’s 
marketing application for the same drug for the same indication for seven years, except in certain limited circumstances. 
Orphan exclusivity does not block the approval of a different drug for the same rare disease or condition, nor does it block the 
approval of the same drug for different indications. If a drug designated as an orphan drug ultimately receives marketing 
approval for an indication broader than what was designated in its orphan drug application, it may not be entitled to exclusivity. 
Orphan exclusivity will not bar approval of another product under certain circumstances, including if a subsequent product with 
the same drug for the same indication is shown to be clinically superior to the approved product on the basis of greater efficacy 
or safety, or providing a major contribution to patient care, or if the company with orphan drug exclusivity is not able to meet 
market demand. 

Patent Term Restoration and Extension 

A patent claiming a new drug product or its method of use may be eligible for a limited patent term extension, also 

known as patent term restoration, under the Hatch-Waxman Act, which permits a patent restoration of up to five years for 
patent term lost during product development and the FDA regulatory review. Patent term extension is generally available only 
for drug products whose active ingredient has not previously been approved by the FDA. The restoration period granted is 
typically one-half the time between the effective date of an IND and the submission date of an NDA, plus the time between the 
submission date of an NDA and the ultimate approval date. Patent term extension cannot be used to extend the remaining term 
of a patent past a total of 14 years from the product’s approval date. Only one patent applicable to an approved drug product is 
eligible for the extension, and the application for the extension must be submitted prior to the expiration of the patent in 
question. A patent that covers multiple drugs for which approval is sought can only be extended in connection with one of the 
approvals. The USPTO reviews and approves the application for any patent term extension in consultation with the FDA. 

The 21st Century Cures Act 

On December 13, 2016, President Obama signed the Cures Act into law.  The Cures Act is designed to modernize and 
personalize healthcare, spur innovation and research, and streamline the discovery and development of new therapies through 
increased federal funding of particular programs.  It authorizes increased funding for the FDA to spend on innovation projects.  
The new law also amends the Public Health Service Act, or PHSA, to reauthorize and expand funding for the NIH.  The Cures 
Act establishes the NIH Innovation Fund to pay for the cost of development and implementation of a strategic plan, early stage 
investigators and research.  It also charges NIH with leading and coordinating expanded pediatric research.  Further, the Cures 
Act directs the Centers for Disease Control and Prevention to expand surveillance of neurological diseases. 

With amendments to the FDCA and the PHSA, Title III of the Cures Act seeks to accelerate the discovery, 

development, and delivery of new medicines and medical technologies.  To that end, and among other provisions, the Cures Act 
reauthorizes the existing priority review voucher program for certain drugs intended to treat rare pediatric diseases until 2020; 
creates a new priority review voucher program for drug applications determined to be material national security threat medical 
countermeasure applications; revises the FDCA to streamline review of combination product applications; requires FDA to 
evaluate the potential use of “real world evidence” to help support approval of new indications for approved drugs; provides a 
new “limited population” approval pathway for antibiotic and antifungal drugs intended to treat serious or life-threatening 
infections; and authorizes FDA to designate a drug as a “regenerative advanced therapy,” thereby making it eligible for certain 
expedited review and approval designations. 

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Review and Approval of Drugs in Europe and other Foreign Jurisdictions 

In addition to regulations in the United States, a manufacturer is subject to a variety of regulations in foreign 
jurisdictions to the extent it chooses to sell any drug products in those foreign countries. Even if a manufacturer obtains FDA 
approval of a product, it must still 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. To obtain regulatory approval of an 
investigational drug in the European Union (EU), a manufacturer must submit a marketing authorization application, or MAA, 
to the European Medicines Agency, or EMA. For other countries outside of the European Union, such as countries in Eastern 
Europe, Latin America or Asia, the requirements governing the conduct of clinical trials, product licensing, pricing and 
reimbursement vary from country to country. In all cases, clinical trials are to be conducted in accordance with GCP and the 
applicable regulatory requirements and the ethical principles that have their origin in the Declaration of Helsinki. 

Clinical Trial Approval in the EU 

Pursuant to the currently applicable Clinical Trials Directive 2001/20/EC and the Directive 2005/28/EC on GCP, an 

applicant must obtain approval from the competent national authority of the EU Member State in which the clinical trial is to be 
conducted. If the clinical trial is conducted in different EU Member States, the competent authorities in each of these EU 
Member States must provide their approval for the conduct of the clinical trial. Furthermore, the applicant may only start a 
clinical trial at a specific study site after the competent ethics committee has issued a favorable opinion. 

In April 2014, the EU adopted a new Clinical Trials Regulation (EU) No 536/2014, which is set to replace the current 

Clinical Trials Directive 2001/20/EC. The new Clinical Trials Regulation will be directly applicable to and binding in all 28 EU 
Member States without the need for any national implementing legislation. The new Clinical Trials Regulation (EU) No 
536/2014 will become applicable no earlier than 28 May 2016. It will overhaul the current system of approvals for clinical 
trials in the EU. Specifically, the new legislation aims at simplifying and streamlining the approval of clinical trials in the EU. 
Under the new coordinated procedure for the approval of clinical trials, the sponsor of a clinical trial will be required to submit 
a single application for approval of a clinical trial to a reporting EU Member State (RMS) through an EU Portal. The 
submission procedure will be the same irrespective of whether the clinical trial is to be conducted in a single EU Member State 
or in more than one EU Member State. The Clinical Trials Regulation also aims to streamline and simplify the rules on safety 
reporting for clinical trials. 

Marketing Authorization 

In the EU, marketing authorizations for medicinal products may be obtained through several different procedures 

founded on the same basic regulatory process. 

The centralized procedure provides for the grant of a single marketing authorization that is valid for all EU Member 

States. The centralized procedure is compulsory for medicinal products produced by certain biotechnological processes, 
products designated as orphan medicinal products, and products with a new active substance indicated for the treatment of 
certain diseases. It is optional for those products that are highly innovative or for which a centralized process is in the interest 
of patients. Under the centralized procedure in the EU, the maximum timeframe for the evaluation of a MAA is 210 days, 
excluding clock stops, when additional written or oral information is to be provided by the applicant in response to questions 
asked by the Committee for Medicinal Products for Human use or CHMP. Accelerated evaluation may be granted by the 
CHMP in exceptional cases. These are defined as circumstances in which a medicinal product is expected to be of a “major 
public health interest.” Three cumulative criteria must be fulfilled in such circumstances: the seriousness of the disease, such as 
severely disabling or life-threatening diseases, to be treated; the absence or insufficiency of an appropriate alternative 
therapeutic approach; and anticipation of high therapeutic benefit. In these circumstances, the EMA ensures that the opinion of 
the CHMP is given within 150 days. 

The decentralized procedure provides for approval by one or more other concerned EU Member States of an 

assessment of an application for marketing authorization conducted by one EU Member State, known as the reference EU 
Member State. In accordance with this procedure, an applicant submits an application for marketing authorization to the 

25 

 
 
 
 
 
 
 
 
 
reference EU Member State and the concerned EU Member States. This application is identical to the application that would be 
submitted to the EMA for authorization through the centralized procedure. The reference EU Member State prepares a draft 
assessment and drafts of the related materials within 120 days after receipt of a valid application. The resulting assessment 
report is submitted to the concerned EU Member States which, within 90 days of receipt, must decide whether to approve the 
assessment report and related materials. If a concerned EU Member State cannot approve the assessment report and related 
materials due to concerns relating to a potential serious risk to public health, disputed elements may be referred to the European 
Commission, whose decision is binding on all EU Member States. In accordance with the mutual recognition procedure, the 
sponsor applies for national marketing authorization in one EU Member State. Upon receipt of this authorization the sponsor 
can then seek the recognition of this authorization by other EU Member States. Authorization in accordance with either of these 
procedures will result in authorization of the medicinal product only in the reference EU Member State and in the other 
concerned EU Member States. 

A marketing authorization may be granted only to an applicant established in the EU. Regulation No. 1901/2006 
provides that, prior to obtaining a marketing authorization in the EU, an applicant must demonstrate compliance with all 
measures included in a Pediatric Investigation Plan, or PIP, approved by the Pediatric Committee of the EMA, covering all 
subsets of the pediatric population, unless the EMA has granted a product-specific waiver, class waiver, or a deferral for one or 
more of the measures included in the PIP. 

Regulatory Data Exclusivity in the European Union 

Innovative medicinal products authorized in the EU on the basis of a full MAA (as opposed to an application for 

marketing authorization that relies on data available in the marketing authorization dossier for another, previously approved, 
medicinal product) are entitled to eight years of data exclusivity. During this period, applicants for authorization of generic 
versions of these innovative products cannot rely on data contained in the marketing authorization dossier submitted for the 
innovative medicinal product. Innovative medicinal products are also entitled to ten years’ of market exclusivity. During this 
ten-year period no generic version of the medicinal product can be placed on the EU market. The overall ten-year period will be 
extended to a maximum of eleven years if, during the first eight years of those ten years, the marketing authorization holder 
obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to 
authorization, is held to bring a significant clinical benefit in comparison with existing therapies. Even if a compound is 
considered to be a new chemical entity so that the innovator gains the prescribed period of data exclusivity, another company 
may market another version of the product if such company obtained marketing authorization based on an MAA with a 
complete independent data package of pharmaceutical tests, preclinical tests and clinical trials. 

Periods of Authorization and Renewals in the EU 

A marketing authorization is valid for five years, in principle, and it may be renewed after five years on the basis of a 

reevaluation of the risk-benefit balance by the EMA or by the competent authority of the relevant EU Member State. To that 
end, the marketing authorization holder must provide the EMA or the relevant competent authority of the EU Member State 
with a consolidated version of the file in respect of quality, safety and efficacy, including all variations introduced since the 
marketing authorization was granted, at least six months before the marketing authorization ceases to be valid. Once renewed, 
the marketing authorization is valid for an unlimited period, unless the European Commission or the relevant competent 
authority of the EU Member State decides, on justified grounds relating to pharmacovigilance, to proceed with one additional 
five-year renewal period. Any marketing authorization that is not followed by the marketing of the medicinal product on the 
EU market (in the case of the centralized procedure) or on the market of the EU Member State which delivered the marketing 
authorization within three years after authorization ceases to be valid. 

Regulatory Requirements after Marketing Authorization 

As in the United States, marketing authorization holders and manufacturers of medicinal products are subject to 
comprehensive regulatory oversight by the EMA and the competent authorities of the individual EU Member States both before 
and after grant of the manufacturing and marketing authorizations. 

26 

 
 
 
 
 
 
 
The holder of an EU marketing authorization for a medicinal product must also comply with EU pharmacovigilance 

legislation and its related regulations and guidelines, which detail requirements for conducting pharmacovigilance or the 
assessment and monitoring of the safety of medicinal products. These rules can impose on central marketing authorization 
holders for medicinal products the obligation to conduct a labor intensive collection of data regarding the risks and benefits of 
marketed products and to engage in ongoing assessments of those risks and benefits, including the possible requirement to 
conduct additional clinical studies. 

The manufacturing process for medicinal products in the EU is highly regulated and regulators may shut down 

manufacturing facilities that they believe do not comply with regulations. Manufacturing requires a manufacturing 
authorization, and the manufacturing authorization holder must comply with various requirements set out in the applicable EU 
laws, regulations and guidance, including Directive 2001/83/EC, Directive 2003/94/EC, Regulation (EC) No 726/2004 and the 
European Commission Guidelines for Good Manufacturing Practice. These requirements include compliance with EU cGMP 
standards when manufacturing medicinal products and active pharmaceutical ingredients, including the manufacture of active 
pharmaceutical ingredients outside of the EU with the intention to import the active pharmaceutical ingredients into the EU. 
Similarly, the distribution of medicinal products into and within the EU is subject to compliance with the applicable EU laws, 
regulations and guidelines, including the requirement to hold appropriate authorizations for distribution granted by the 
competent authorities of the EU Member States. 

In the EU, the advertising and promotion of products are subject to EU Member States’ laws governing promotion of 
medicinal products, interactions with physicians, misleading and comparative advertising and unfair commercial practices. In 
addition, other legislation adopted by individual EU Member States may apply to the advertising and promotion of medicinal 
products. These laws require that promotional materials and advertising in relation to medicinal products comply with the 
product’s Summary of Product Characteristics, or SmPC, as approved by the competent authorities. Promotion of a medicinal 
product that does not comply with the SmPC is considered to constitute off-label promotion. The off-label promotion of 
medicinal products is prohibited in the EU. The applicable laws at EU level and in the individual EU Member States also 
prohibit the direct-to-consumer advertising of prescription-only medicinal products. These laws may further limit or restrict the 
advertising and promotion of products to the general public and may also impose limitations on promotional activities with 
health care professionals. 

Orphan Drug Designation and Exclusivity in the EU 

Regulation (EC) No 141/2000 and Regulation (EC) No. 847/2000 provide that a product can be designated as an 

orphan medicinal product by the European Commission if its sponsor can establish that the product is intended for the 
diagnosis, prevention or treatment of: (1) a life-threatening or chronically debilitating condition affecting not more than five in 
ten thousand persons in the EU when the application is made, or (2) a life-threatening, seriously debilitating or serious and 
chronic condition in the EU and that without incentives the medicinal product is unlikely to be developed. For either of these 
conditions, the applicant must demonstrate that there exists no satisfactory method of diagnosis, prevention or treatment of the 
condition in question that has been authorized in the EU or, if such method exists, the medicinal product will be of significant 
benefit to those affected by that condition. 

Once authorized, orphan medicinal products are entitled to ten years of market exclusivity in all EU Member States 

and, in addition, a range of other benefits during the development and regulatory review process, including scientific assistance 
for study protocols, authorization through the centralized marketing authorization procedure covering all member countries and 
a reduction or elimination of registration and marketing authorization fees. However, marketing authorization may be granted 
to a similar medicinal product with the same orphan indication during the ten-year period with the consent of the marketing 
authorization holder for the original orphan medicinal product or if the manufacturer of the original orphan medicinal product 
is unable to supply sufficient quantities. Marketing authorization may also be granted to a similar medicinal product with the 
same orphan indication if the product is safer, more effective or otherwise clinically superior to the original orphan medicinal 

27 

 
 
 
 
 
 
 
 
 
product. The period of market exclusivity may, in addition, be reduced to six years if it can be demonstrated on the basis of 
available evidence that the original orphan medicinal product is sufficiently profitable not to justify maintenance of market 
exclusivity. 

Pharmaceutical Coverage, Pricing and Reimbursement 

In the United States and markets in other countries, patients who are prescribed treatments for their conditions and 

providers performing the prescribed services generally rely on third-party payors to reimburse all or part of the associated 
healthcare costs. Significant uncertainty exists as to the coverage and reimbursement status of products approved by the FDA 
and other government authorities. Thus, even if a product candidate is approved, sales of the product will depend, in part, on 
the extent to which third-party payors, including government health programs in the United States such as Medicare and 
Medicaid, commercial health insurers and managed care organizations, provide coverage, and establish adequate 
reimbursement levels for, the product. The process for determining whether a payor will provide coverage for a product may be 
separate from the process for setting the price or reimbursement rate that the payor will pay for the product once coverage is 
approved. Third-party payors are increasingly challenging the prices charged, examining the medical necessity, and reviewing 
the cost-effectiveness of medical products and services and imposing controls to manage costs. Third-party payors may limit 
coverage to specific products on an approved list, also known as a formulary, which might not include all of the approved 
products for a particular indication. 

In order to secure coverage and reimbursement for any product that might be approved for sale, a company may need 

to conduct expensive pharmacoeconomic studies in order to demonstrate the medical necessity and cost-effectiveness of the 
product, in addition to the costs required to obtain FDA or other comparable marketing approvals. Nonetheless, product 
candidates may not be considered medically necessary or cost effective. A decision by a third-party payor not to cover a 
product candidate could reduce physician utilization once the product is approved and have a material adverse effect on sales, 
results of operations and financial condition. 

Additionally, a payor’s decision to provide coverage for a product does not imply that an adequate reimbursement rate 

will be approved. Further, one payor’s determination to provide coverage for a drug product does not assure that other payors 
will also provide coverage and reimbursement for the product, and the level of coverage and reimbursement can differ 
significantly from payor to payor. 

The containment of healthcare costs also has become a priority of federal, state and foreign governments and the 

prices of drugs have been a focus in this effort. Governments have shown significant interest in implementing cost-containment 
programs, including price controls, restrictions on reimbursement and requirements for substitution of generic products. 
Adoption of price controls and cost-containment measures, and adoption of more restrictive policies in jurisdictions with 
existing controls and measures, could further limit a company’s revenue generated from the sale of any approved products. 
Coverage policies and third-party reimbursement rates may change at any time. Even if favorable coverage and reimbursement 
status is attained for one or more products for which a company or its collaborators receive marketing approval, less favorable 
coverage policies and reimbursement rates may be implemented in the future. 

Outside the United States, ensuring adequate coverage and payment for a product also involves challenges. Pricing of 

prescription pharmaceuticals is subject to governmental control in many countries. Pricing negotiations with governmental 
authorities can extend well beyond the receipt of regulatory marketing approval for a product and may require a clinical trial 
that compares the cost effectiveness of a product to other available therapies. The conduct of such a clinical trial could be 
expensive and result in delays in commercialization. 

In the European Union, pricing and reimbursement schemes vary widely from country to country. Some countries 
provide that products may be marketed only after a reimbursement price has been agreed. Some countries may require the 
completion of additional studies that compare the cost-effectiveness of a particular drug candidate to currently available 
therapies or so called health technology assessments, in order to obtain reimbursement or pricing approval. For example, the 

28 

 
 
 
 
 
 
 
 
 
European Union provides options for its member states to restrict the range of products for which their national health 
insurance systems provide reimbursement and to control the prices of medicinal products for human use. European Union 
member states may approve a specific price for a product or it may instead adopt a system of direct or indirect controls on the 
profitability of the company placing the product on the market. Other member states allow companies to fix their own prices 
for products, but monitor and control prescription volumes and issue guidance to physicians to limit prescriptions. Recently, 
many countries in the European Union have increased the amount of discounts required on pharmaceuticals and these efforts 
could continue as countries attempt to manage healthcare expenditures, especially in light of the severe fiscal and debt crises 
experienced by many countries in the European Union. The downward pressure on health care costs in general, particularly 
prescription drugs, has become intense. As a result, increasingly high barriers are being erected to the entry of new products. 
Political, economic and regulatory developments may further complicate pricing negotiations, and pricing negotiations may 
continue after reimbursement has been obtained. Reference pricing used by various European Union member states, and 
parallel trade, i.e., arbitrage between low-priced and high-priced member states, can further reduce prices. There can be no 
assurance that any country that has price controls or reimbursement limitations for pharmaceutical products will allow 
favorable reimbursement and pricing arrangements for any products, if approved in those countries. 

Healthcare Law and Regulation 

Healthcare providers and third-party payors play a primary role in the recommendation and prescription of drug 

products that are granted marketing approval. Arrangements with providers, consultants, third-party payors and customers are 
subject to broadly applicable fraud and abuse, anti-kickback, false claims laws, reporting of payments to physicians and 
teaching physicians and patient privacy laws and regulations and other healthcare laws and regulations that may constrain 
business and/or financial arrangements. Restrictions under applicable federal and state healthcare laws and regulations, include 
the following: 

•  

•  

•  

the federal Anti-Kickback Statute, which prohibits, among other things, persons and entities from knowingly and 
willfully soliciting, offering, paying, receiving or providing remuneration, directly or indirectly, in cash or in kind, 
to induce or reward either the referral of an individual for, or the purchase, order or recommendation of, any good 
or service, for which payment may be made, in whole or in part, under a federal healthcare program such as 
Medicare and Medicaid; 
the federal civil and criminal false claims laws, including the civil False Claims Act, and civil monetary penalties 
laws, which prohibit individuals or entities from, among other things, knowingly presenting, or causing to be 
presented, to the federal government, claims for payment that are false, fictitious or fraudulent or knowingly 
making, using or causing to made or used a false record or 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 created additional 
federal criminal laws that prohibit, among other things, knowingly and willfully executing, or attempting to 
execute, 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, and their 

•  

•  

respective implementing regulations, including the Final Omnibus Rule published in January 2013, which impose 
obligations, including mandatory contractual terms, with respect to safeguarding the privacy, security and 
transmission of individually identifiable health information; 
the federal false statements statute, which prohibits knowingly and willfully falsifying, concealing or covering up 
a material fact or making any materially false statement in connection with the delivery of or payment for 
healthcare benefits, items or services; 
the federal transparency requirements known as the federal Physician Payments Sunshine Act, under the Patient 
Protection and Affordable Care Act, as amended by the Health Care Education Reconciliation Act, or the ACA, 
which requires certain manufacturers of drugs, devices, biologics and medical supplies to report annually to the 
Centers for Medicare & Medicaid Services, or CMS, within the United States Department of Health and Human 
Services, information related to payments and other transfers of value made by that entity to physicians and 

29 

 
 
 
 
•  

teaching hospitals, as well as ownership and investment interests held by physicians and their immediate family 
members; and 
analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws, which may 
apply to healthcare items or services that are reimbursed by non-governmental third-party payors, including 
private insurers. 

Some state laws require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary 
compliance guidelines and the relevant compliance guidance promulgated by the federal government in addition to requiring 
drug manufacturers to report information related to payments to physicians and other health care providers or marketing 
expenditures. State and foreign laws also govern the privacy and security of health information in some circumstances, many of 
which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts. 

Healthcare Reform 

A primary trend in the United States healthcare industry and elsewhere is cost containment. There have been a number 
of federal and state proposals during the last few years regarding the pricing of pharmaceutical and biopharmaceutical products, 
limiting coverage and reimbursement for drugs and other medical products, government control and other changes to the 
healthcare system in the United States. 

In March 2010, the United States Congress enacted the ACA, which, among other things, includes changes to the 

coverage and payment for products under government health care programs. Among the provisions of the ACA of importance 
to potential drug candidates are: 

•  

•  

•  

•  

•  
•  

•  

•  

•  

an annual, nondeductible fee on any entity that manufactures or imports specified branded prescription drugs and 
biologic agents, apportioned among these entities according to their market share in certain government 
healthcare programs, although this fee would not apply to sales of certain products approved exclusively for 
orphan indications; 
expansion of eligibility criteria for Medicaid programs by, among other things, allowing states to offer Medicaid 
coverage to certain individuals with income at or below 133% of the federal poverty level, thereby potentially 
increasing a manufacturer’s Medicaid rebate liability; 
expanded manufacturers’ rebate liability under the Medicaid Drug Rebate Program by increasing the minimum 
rebate for both branded and generic drugs and revising the definition of “average manufacturer price,” or AMP, 
for calculating and reporting Medicaid drug rebates on outpatient prescription drug prices and extending rebate 
liability to prescriptions for individuals enrolled in Medicare Advantage plans; 
addressed 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; 
expanded the types of entities eligible for the 340B drug discount program; 
established the Medicare Part D coverage gap discount program by requiring manufacturers to provide a 50% 
point-of-sale-discount off the negotiated price of applicable brand drugs to eligible beneficiaries during their 
coverage gap period as a condition for the manufacturers’ outpatient drugs to be covered under Medicare Part D; 
a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative 
clinical effectiveness research, along with funding for such research; 
the Independent Payment Advisory Board, or IPAB, which has authority to recommend certain changes to the 
Medicare program to reduce expenditures by the program that could result in reduced payments for prescription 
drugs. However, the IPAB implementation has been not been clearly defined. ACA provided that under certain 
circumstances, IPAB recommendations will become law unless Congress enacts legislation that will achieve the 
same or greater Medicare cost savings; and 
established the Center for Medicare and Medicaid Innovation within CMS to test innovative payment and service 
delivery models to lower Medicare and Medicaid spending, potentially including prescription drug spending. 
Funding has been allocated to support the mission of the Center for Medicare and Medicaid Innovation from 2011 
to 2019. 

30 

 
 
 
 
 
 
Other legislative changes have been proposed and adopted in the United States since the ACA was enacted. For 

example, in August 2011, the Budget Control Act of 2011, among other things, created measures for spending reductions by 
Congress. A Joint Select Committee on Deficit Reduction, tasked with recommending a targeted deficit reduction of at least 
$1.2 trillion for the years 2012 through 2021, was unable to reach required goals, thereby triggering the legislation’s automatic 
reduction to several government programs. This includes aggregate reductions of Medicare payments to providers of up to 
2% per fiscal year, which went into effect in April 2013 and will remain in effect through 2024 unless additional Congressional 
action is taken. In January 2013, President Obama signed into law the American Taxpayer Relief Act of 2012, which, among 
other things, further reduced Medicare payments to several providers, including hospitals, imaging centers and cancer treatment 
centers, and increased the statute of limitations period for the government to recover overpayments to providers from three to 
five years. 

With the new Administration and Congress, there will likely be additional legislative changes, including repeal and 
replacement of certain provisions of the ACA.  In January 2017, Congress voted to adopt a budget resolution for fiscal year 
2017, or the Budget Resolution, that authorizes the implementation of legislation that would repeal portions of the ACA.  The 
Budget Resolution is not a law; however, it is widely viewed as the first step toward the passage of legislation that would repeal 
certain aspects of the ACA.  Further, on January 20, 2017, President Trump signed an Executive Order directing federal 
agencies with authorities and responsibilities under the ACA to waive, defer, grant exemptions from, or delay the 
implementation of any provision of the ACA that would impose a fiscal or regulatory burden on states, individuals, healthcare 
providers, health insurers, or manufacturers of pharmaceuticals or medical devices. 

The President and congressional leaders have expressed interest in repealing certain ACA provisions and replacing 

them with alternatives that may be less costly and provide state Medicaid programs and private health plans more flexibility. It 
is possible that these repeal and replacement initiatives, if enacted into law, could ultimately result in fewer individuals having 
health insurance coverage or in individuals having insurance coverage with less generous benefits. The scope of potential future 
legislation to repeal and replace ACA provisions is highly uncertain in many respects, and it is possible that some of the ACA 
provisions that generally are not favorable for the research-based pharmaceutical industry could also be repealed along with 
ACA coverage expansion provisions.  However, at this time the coverage expansion provisions of the ACA appear most likely 
to be repealed and replaced. 

Employees 

As of March 1, 2017, we had 23 full-time employees, 8 of whom were engaged in research and development and 15 of 

whom were engaged in general business management, administration and finance. Approximately 78% of our employees hold 
advanced degrees. Our success depends, in part, on our ability to recruit and retain talented and trained scientific and business 
personnel and senior leadership. We believe that we have been successful to date in obtaining and retaining these individuals, 
but we do not know whether we will be successful in doing so in the future. None of our employees are represented by a labor 
union or covered by a collective bargaining agreement, nor have we experienced work stoppages. We believe that relations with 
our employees are good. 

Corporate Information 

We were incorporated in California on March 22, 1995 under the name IRORI and, in 1998, we changed our name to 

Discovery Partners International, Inc., or DPI. In July 2000, we reincorporated in Delaware. On September 12, 2006, DPI 
completed a merger with Infinity Pharmaceuticals, Inc., or IPI, pursuant to which a wholly-owned subsidiary of DPI merged 
with and into IPI. IPI, the surviving corporation in the merger, changed its name to Infinity Discovery, Inc., or IDI, and became 
a wholly-owned subsidiary of DPI. In addition, we changed our corporate name from Discovery Partners International, Inc. to 
Infinity Pharmaceuticals, Inc., and our ticker symbol on the NASDAQ Global Market to “INFI.” Our common stock currently 
trades on the NASDAQ Global Select Market. 

31 

 
 
 
 
 
 
 
 
 
Our principal executive offices are located at 784 Memorial Drive, Cambridge, Massachusetts 02139, and our 

telephone number at that address is (617) 453-1000. 

The Infinity logo and all other Infinity product names are trademarks of Infinity Pharmaceuticals, Inc. or its 
subsidiaries in the United States and in other select countries. We may indicate U.S. trademark registrations and U.S. 
trademarks with the symbols “®” and “™”, respectively. Other third-party logos and product/trade names are registered 
trademarks or trade names of their respective owners. 

Executive Officers 

The following table lists the positions, names and ages of our executive officers as of March 1, 2017: 

Name 
Adelene Q. Perkins 
Lawrence E. Bloch, M.D., J.D. 
Jeffery L. Kutok, M.D., Ph.D. 
Seth A. Tasker, J.D. 

Age 
57 
51 
50 
38 

Position 

    Chief Executive Officer 
    President and Treasurer 
    Senior Vice President, Chief Scientific Officer 
    Vice President, General Counsel and Secretary 

Adelene Q. Perkins has served as our Chief Executive Officer since January 2010, our President between October 

2008 and January 2017, our Chief Business Officer from October 2008 through December 2009 and our Executive Vice 
President and Chief Business Officer between September 2006 and October 2008. Ms. Perkins served as Executive Vice 
President of IPI from February 2006 until its merger with DPI in September 2006 and Chief Business Officer of IPI from June 
2002 until the DPI merger. Prior to joining IPI, Ms. Perkins served as Vice President of Business and Corporate Development 
of TransForm Pharmaceuticals, Inc., a private pharmaceutical company, from 2000 to 2002. From 1992 to 1999, Ms. Perkins 
held various positions at Genetics Institute, most recently serving as Vice President of Emerging Business and General 
Manager of the DiscoverEase® business unit. Ms. Perkins has served as a director of the Biotechnology Industry Organization 
since 2012, a director of Project Hope, a not-for-profit social services company since 2013, a director of the Massachusetts Life 
Sciences Center, a quasi-public agency of the Commonwealth of Massachusetts, since 2014, a director of the Massachusetts 
Biotechnology Council, a not-for-profit organization, since 2014, and a director of Padlock Therapeutics, a privately held 
biopharmaceutical company since 2015. From 1985 to 1992, Ms. Perkins held a variety of positions at Bain & Company, a 
strategy consulting firm. Ms. Perkins received a B.S. in Chemical Engineering from Villanova University and an M.B.A. from 
Harvard Business School. 

Lawrence E. Bloch, M.D., J.D., has served as our President since January 2017, and our Executive Vice President, 

Chief Financial Officer and Chief Business Officer from July 2012 to December 2016. Prior to joining Infinity, Dr. Bloch 
served as Chief Executive Officer of NeurAxon, Inc., a privately held biopharmaceutical company, from 2007 to 2011. 
Previously, he served as Chief Financial Officer and Chief Business Officer of NitroMed, Inc., a publicly held 
biopharmaceutical company, from 2004 to 2006. From 2000 to 2004, Dr. Bloch served as Chief Financial Officer, and from 
1999 to 2002 as Vice President, Business Development, of Applied Molecular Evolution, Inc., a publicly held 
biopharmaceutical company. Dr. Bloch began his career as an emergency medicine resident physician at Massachusetts General 
Hospital and Brigham & Woman’s Hospital. Dr. Bloch has served as director of NeurAxon, Inc., a privately held 
biopharmaceutical company, from 2007 to 2011. He holds a J.D. from Harvard Law School, an M.D. from Harvard Medical 
School and an M.B.A. from Harvard Business School. 

Jeffery L. Kutok, M.D., Ph.D., has served as our Senior Vice President and Chief Scientific Officer since February 

2017, our Vice President of Biology and Translational Science from August 2013 to February 2017, our Senior Director of 
Biology and Translational Science from August 2012 to August 2013, our Senior Director of Molecular Pathology from March 
2012 to August 2012, and our Director of Molecular Pathology from January 2011 to March 2012. Prior to joining Infinity, Dr. 
Kutok was an associate professor of pathology at Harvard Medical School and Brigham and Women’s Hospital. His laboratory 

32 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
focused on translational medicine research and biomarker identification in cancer, and he is an author on over 190 journal 
articles, reviews and book chapters. Dr. Kutok is board certified in Anatomic Pathology and Hematology and had clinical duties 
in Hematopathology and Molecular Diagnostics at Brigham and Women’s Hospital. Dr. Kutok received his B.S. in biology and 
his M.D., Ph.D. in medicine and molecular pathology from the State University of New York at Stony Brook. His Ph.D. was 
earned working in the laboratory of Dr. Barry Coller, M.D. in the field of platelet pathobiology. He was also a post-doctoral 
fellow at Harvard University in the laboratory of Dr. Gary Gilliland, M.D., Ph.D. 

Seth A. Tasker, J.D. has served as our Vice President, General Counsel and Secretary since July 2016, our Deputy 

General Counsel between March 2015 and July 2016, our Associate General Counsel between March 2013 and March 2015, 
our Assistant General Counsel between March 2010 and March 2013, and our Corporate Counsel between March 2008 and 
March 2010. Prior to joining Infinity, Mr. Tasker served in varying levels of responsibility in the legal function at Surface 
Logix, Inc., a privately hely biopharmaceutical company, from 2001 to 2008.  Mr. Tasker holds a B.S. in Microbiology from the 
University of Vermont, a J.D. from Suffolk University Law School, and an M.B.A. from Suffolk University Sawyer School of 
Management. 

Available Information 

Our Internet website is http://www.infi.com. We make available free of charge through our website our annual report 

on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed or 
furnished pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended. We make these reports 
available through our website as soon as reasonably practicable after we electronically file such reports with, or furnish such 
reports to, the SEC. In addition, we regularly use our website to post information regarding our business, product development 
programs and governance, and we encourage investors to use our website, particularly the information in the section entitled 
“Investors/Media,” as a source of information about us. 

Our Code of Conduct and Ethics and the charters of the Audit, Compensation, Nominating & Corporate Governance 
and Research & Development Committees of our Board of Directors are all available on our website at http://www.infi.com at 
the “Investors/Media” section under “Corporate Governance.” Stockholders may request a free copy of any of these documents 
by writing to Investor Relations, Infinity Pharmaceuticals, Inc., 784 Memorial Drive, Cambridge, Massachusetts 02139, U.S.A. 

The foregoing references to our website are not intended to, nor shall they be deemed to, incorporate information on 

our website into this report by reference. 

Item 1A. RISK FACTORS 

The following risk factors and other information included in this Annual Report on Form 10-K should be carefully considered. 
The risks and uncertainties described below are not the only risks and uncertainties we face. Additional risks and uncertainties 
not presently known to us or that we presently deem less significant may also impair our business operations. Please see page 1 
of this Annual Report on Form 10-K for a discussion of some of the forward-looking statements that are qualified by these risk 
factors. If any of the following risks occur, our business, financial condition, results of operations and future growth prospects 
could be materially and adversely affected. 

Risks Related to Our Financial Position and Need for Additional Capital 

We have a history of operating losses, expect to incur significant and increasing operating losses in the future, may never 
become profitable, or if we become profitable, we may not remain profitable. 

33 

 
 
 
 
 
 
 
 
 
 
 
We have a limited operating history for you to evaluate our business. We have no approved products and have 

generated no product revenue from sales. We have primarily incurred operating losses. As of December 31, 2016, we had an 
accumulated deficit of $625.7 million. Pending any decision to change strategic direction, we expect to continue to spend 
significant resources to fund IPI-549, the wind-down of duvelisib, and restructuring related expenses. IPI-549 is our selective 
inhibitor of phosphoinositide-3-kinase, or PI3K, gamma. Duvelisib is a selective inhibitor of PI3K delta and gamma which we 
licensed to Verastem, Inc, or Verastem. While we may have net income in some periods as the result of non-recurring 
collaboration revenue, we expect to incur substantial operating losses over the next several years as our clinical trial and drug 
manufacturing activities continue. In addition, if we proceed to seek and possibly obtain regulatory approval of IPI-549, we 
would expect to incur significant commercialization expenses for product sales, marketing, manufacturing and distribution. As 
a result, we expect that our accumulated deficit would also increase significantly.  

IPI-549 is under clinical development and may never be approved for sale or generate any revenue. We will not be 

able to generate product revenue unless and until IPI-549 successfully completes clinical trials and receives regulatory 
approval. We do not expect to generate revenue from product sales for the foreseeable future. Even if we eventually generate 
revenues, we may never be profitable, and if we do achieve profitability, we may not be able to sustain or increase profitability 
on a quarterly or annual basis. Our failure to become and remain profitable would decrease the value of our company and could 
impair our ability to raise capital, expand our business, maintain our research and development efforts, and cause a decline in 
the value of our common stock. 

 We will need substantial additional funding, and if we are unable to raise capital when needed, we could be forced to delay, 
reduce or eliminate our product development programs or future commercialization efforts.  

Developing pharmaceutical products, including conducting preclinical studies and clinical trials, is a very time 
consuming, expensive and uncertain process that takes years to complete. We will need substantial additional funds to support 
our planned operations. In the absence of additional funding or business development activities, we believe that our existing 
cash, cash equivalents and available-for-sale securities at December 31, 2016 will be adequate to satisfy our capital needs into 
the first quarter of 2019 based on our operating plans. 

Our estimate as to how long we expect our existing cash, cash equivalents and available-for-sale securities to be able 
to continue to fund our operations is based on assumptions that may prove to be wrong, and we could use our available capital 
resources sooner than we currently expect. Further, changing circumstances, some of which may be beyond our control, could 
cause us to consume capital significantly faster than we currently anticipate. Our future funding requirements, both short-term 
and long-term, will depend on many factors, including, but not limited to: 

•  

the scope, progress, results and costs of developing IPI-549, currently in clinical development;  

•   our ability to realize the planned cost savings benefits of strategic restructurings we effected in 2016, which 

included a significant reduction in our workforce, in order to preserve capital to support the development of IPI-
549; 

•   our ability to secure alternative leasing or subleasing arrangements for our current lease and to achieve related 

cost savings; 

•  

the timing of, and the costs involved in, obtaining regulatory approvals for IPI-549;  

•   our ability to effectively transition the duvelisib program to Verastem; 

•  

•  

•  

•  

the costs involved in preparing, filing, prosecuting, maintaining, defending and enforcing patent claims, including 
litigation costs and the outcome of such litigation;  

the absence of any breach, acceleration event or event of default under any agreements with third parties;  

the outcome of any lawsuits that could be brought against us;  

the cost of acquiring raw materials for, and of manufacturing, our product candidates is higher than anticipated; 

34 

 
 
 
•  

•  

the cost or quantity required of comparator drugs used in clinical studies increases; and 

a loss in our investments due to general market conditions or other reasons. 

Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights 
to our technologies or product candidates. 

We may seek additional funding through public or private financings of equity or debt securities, but such financing 

may not be available on acceptable terms, if at all. If we raise additional funds through the issuance of additional debt or equity 
securities, it could result in dilution to our existing stockholders, increased fixed payment obligations and the existence of 
securities with rights that may adversely affect the rights of our existing stockholders including liquidation or other preferences 
and anti-dilution protections. If we incur indebtedness, we could become subject to covenants that would restrict our operations 
and potentially impair our competitiveness, such as limitations on our ability to incur additional debt, make capital 
expenditures, create liens, redeem stock, declare dividends, and acquire, sell or license intellectual property rights, or other 
operating restrictions that could adversely impact our ability to conduct our business. Any of these events could significantly 
harm our business, financial condition and prospects. In addition, securing financing could require a substantial amount of time 
and attention from our management and may divert a disproportionate amount of their attention away from day-to-day 
activities, which may adversely affect our management’s ability to oversee the development of our product candidates. 

We may also seek additional funds through arrangements with collaborators or other third parties, or through project 

financing. These arrangements would generally require us to relinquish or encumber rights to some of our technologies or 
product candidates, and we may not be able to enter into such agreements on acceptable terms, if at all. 

If we are unable to obtain additional funding on a timely basis, we may be required to curtail, terminate, sell or license 

IPI-549 or to scale back, suspend or terminate our business operations. 

Risks Related to the Development and Commercialization of IPI-549 

In the near term, we are dependent on the success of IPI-549, our only product candidate in development. 

Our prospects are substantially dependent on our ability to develop, obtain marketing approval for and successfully 

commercialize product candidates in one or more disease indications. 

We currently have no products approved for sale and are investing substantially all of our efforts and financial 

resources in the development of IPI-549. 

The success of IPI-549 will depend on several factors, including the following: 

•  

•  

•  

•  

•  

•  

•  

initiation and successful enrollment and completion of clinical trials, including in combination with other agents;  

a safety, tolerability and efficacy profile that is satisfactory to the U.S. Food and Drug Administration, or FDA, or 
any comparable foreign regulatory authority for marketing approval;  

timely receipt of marketing approvals from applicable regulatory authorities; 

the extent of any required post-marketing approval commitments to applicable regulatory authorities;  

establishment of supply arrangements with third-party raw materials suppliers and manufacturers;  

establishment of arrangements with third-party manufacturers to obtain finished drug product that is appropriately 
packaged for sale;  

adequate ongoing availability of raw materials and drug product for clinical development and any commercial 
sales;  

•   obtaining and maintaining patent, trade secret protection and regulatory exclusivity, both in the United States and 

internationally;  

•   protection of our rights in our intellectual property portfolio;  

35 

 
 
 
•  

•  

•  

successful launch of commercial sales following any marketing approval;  

a continued acceptable safety profile following any marketing approval;  

commercial acceptance by patients, the medical community and third-party payors; and  

•   our ability to compete with other therapies.  

Many of these factors are beyond our control, including clinical development, the regulatory submission process, 

potential threats to our intellectual property rights and the manufacturing, marketing and sales efforts of any collaborator. If we 
are unable to develop, receive marketing approval for and successfully commercialize IPI-549, on our own or with any 
collaborator, or experience delays as a result of any of these factors or otherwise, our business could be substantially harmed. 

IPI-549 remains subject to clinical testing and regulatory approval. This process is highly uncertain, and we may never be 
able to obtain marketing approval for IPI-549. 

To date, we have not obtained approval from the FDA or any foreign regulatory authority to market or sell any of our 

product candidates. Any product candidates that we seek to advance will be subject to extensive governmental regulations 
relating to development, clinical trials, manufacturing and commercialization. Rigorous preclinical testing and clinical trials 
and an extensive regulatory approval process are required in the United States and in many foreign jurisdictions prior to the 
commercial sale of medicinal products like our product candidates. 

For example, we are evaluating IPI-549, our only product candidate, in clinical development. If our Phase 1 clinical 

trial of IPI-549 is successful, we will need to conduct further clinical trials and will need to apply for regulatory approval 
before we may market or sell any products based on IPI-549. Satisfaction of these and other regulatory requirements is costly, 
time consuming, uncertain and subject to unanticipated delays. It is possible that IPI-549 will not obtain marketing approval. 
Even if IPI-549 has a beneficial effect, that effect may not be detected during clinical evaluation as a result of one or more of a 
variety of factors, including the size, duration, design, measurements, conduct or analysis of our clinical trials. Conversely, as a 
result of the same factors, our clinical trials may indicate an apparent positive effect of IPI-549 that is greater than the actual 
positive effect, if any. Similarly, in our clinical trials we may fail to detect toxicity of or intolerability caused by IPI-549, or 
mistakenly believe that IPI-549 is toxic or not well tolerated when that is not in fact the case. 

IPI-549 must undergo rigorous clinical trials prior to receipt of regulatory approval. Any problems in these clinical trials 
could delay or prevent commercialization of IPI-549. 

We cannot predict whether we will encounter problems with any of our ongoing or planned clinical trials that will 

cause us or regulatory authorities to delay, suspend, or discontinue clinical trials or to delay the analysis of data from ongoing 
clinical trials. Any of the following could delay or disrupt the clinical development of IPI-549: 

•   unfavorable results of discussions with the FDA or comparable foreign authorities regarding the scope or design 

of our clinical trials;  

•   delays in receiving, or the inability to obtain, required approvals from institutional review boards or other 

reviewing entities at clinical sites selected for participation in our clinical trials;  

•   delays in enrolling patients into clinical trials;  

•  

•  

•  

a lower than anticipated retention rate of patients in clinical trials;  

the need to repeat or discontinue clinical trials as a result of inconclusive or negative results or unforeseen 
complications in testing or because the results of later trials may not confirm positive results from earlier 
preclinical studies or clinical trials;  

inadequate supply, delays in distribution or deficient quality of, or inability to purchase or manufacture drug 
product, comparator drugs or other materials necessary to conduct our clinical trials;  

•   unfavorable FDA or other foreign regulatory inspection and review of a clinical trial site, Infinity, or an Infinity 

vendor, or records of any clinical or preclinical investigation;  

36 

 
 
 
•  

•  

•  

•  

serious and unexpected drug-related side effects experienced by participants in our clinical trials, which may 
occur even if they were not observed in earlier trials or only observed in a limited number of participants;  

a finding that the trial participants are being exposed to unacceptable health risks;  

the placement by the FDA or a foreign regulatory authority of a clinical hold on a trial; or  

any restrictions on, or post-approval commitments with regard to, any regulatory approval we ultimately obtain 
that render the product candidate not commercially viable.  

We may suspend, or the FDA or other applicable regulatory authorities may require us to suspend, clinical trials of 

IPI-549 at any time if we or they believe the patients participating in such clinical trials, or in independent third-party clinical 
trials for drugs based on similar technologies, are being exposed to unacceptable health risks or for other reasons. 

The delay, suspension or discontinuation of any of our clinical trials, or a delay in the analysis of clinical data for IPI-
549, for any of the foregoing reasons, could adversely affect our ability to obtain regulatory approval for and to commercialize 
IPI-549, increase our operating expenses and have a material adverse effect on our financial results. 

Adverse events or undesirable side effects caused by, or other unexpected properties of, IPI-549, alone or in combination 
with other agents, may be identified during development and could delay or prevent IPI-549 marketing approval or limit its 
use. 

Adverse events or undesirable side effects caused by, or other unexpected properties of, IPI-549 could cause us, any 

collaborators, an institutional review board or regulatory authorities to interrupt, delay or halt clinical trials of IPI-549 and 
could result in a more restrictive label or the delay or denial of marketing approval by the FDA or comparable foreign 
regulatory authorities. If IPI-549 is associated with adverse events or undesirable side effects or has properties that are 
unexpected, we, or any collaborators, may need to abandon development or limit development of IPI-549 to certain uses or 
subpopulations in which the undesirable side effects or other characteristics are less prevalent, less severe or more acceptable 
from a risk-benefit perspective. Many compounds that initially showed promise in clinical or earlier stage testing have later 
been found to cause undesirable or unexpected side effects that prevented further development of the compound. 

If we, or any future collaborators, experience any of a number of possible unforeseen events in connection with clinical 
trials of IPI-549, potential clinical development, marketing approval or commercialization of IPI-549 could be delayed or 
prevented. 

We, or any future collaborators, may experience numerous unforeseen events during, or as a result of, clinical trials 

that could delay or prevent clinical development, marketing approval or commercialization of IPI-549, including: 

•  

regulators or institutional review boards may not authorize us, any collaborators or our or their investigators to 
commence a clinical trial or conduct a clinical trial at a prospective trial site;  

•   we, or any collaborators, may have delays in reaching or fail to reach agreement on acceptable clinical trial 

contracts or clinical trial protocols with prospective trial sites;  

•  

clinical trials of IPI-549 may produce unfavorable or inconclusive results;  

•   we, or any collaborators, may decide, or regulators may require us or them, to conduct additional clinical trials or 

abandon IPI-549;  

•  

the number of patients required for clinical trials of IPI-549 may be larger than we, or any collaborators, 
anticipate, patient enrollment in these clinical trials may be slower than we, or any collaborators, anticipate or 
participants may drop out of these clinical trials at a higher rate than we, or any collaborators, anticipate;  

•  

the cost of planned clinical trials of IPI-549 may be greater than we anticipate;  

•   our third-party contractors or those of any collaborators, including those manufacturing IPI-549 or components or 
ingredients thereof or conducting clinical trials on our behalf or on behalf of any collaborators, may fail to comply 

37 

 
 
 
 
with regulatory requirements or meet their contractual obligations to us or any collaborators in a timely manner or 
at all;  

•   patients that enroll in a clinical trial may misrepresent their eligibility to do so or may otherwise not comply with 
the clinical trial protocol, resulting in the need to drop the patients from the clinical trial, increase the needed 
enrollment size for the clinical trial or extend the clinical trial’s duration;  

•   we, or any collaborators, may have to delay, suspend or terminate clinical trials of IPI-549 for various reasons, 

including a finding that the participants are being exposed to unacceptable health risks, undesirable side effects or 
other unexpected characteristics of IPI-549;  

•  

•  

•  

•  

•  

regulators or institutional review boards may require that we, or any collaborators, or our or their investigators 
suspend or terminate clinical research for various reasons, including noncompliance with regulatory requirements 
or their standards of conduct, a finding that the participants are being exposed to unacceptable health risks, 
undesirable side effects or other unexpected characteristics of IPI-549 or findings of undesirable effects caused by 
a chemically or mechanistically similar product or product candidate;  

the FDA or comparable foreign regulatory authorities may disagree with our, or any collaborators’, clinical trial 
designs or our or their interpretation of data from preclinical studies and clinical trials;  

the FDA or comparable foreign regulatory authorities may fail to approve or subsequently find fault with the 
manufacturing processes or facilities of third-party manufacturers with which we, or any collaborators, enter into 
agreements for clinical and commercial supplies;  

the supply or quality of raw materials or manufactured product candidates or other materials necessary to conduct 
clinical trials of IPI-549 may be insufficient, inadequate or not available at an acceptable cost, or we may 
experience interruptions in supply; and  

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

Product development costs for us, or any collaborators, will increase if we, or they, experience delays in testing or 

pursuing marketing approvals and we, or they, may be required to obtain additional funds to complete clinical trials and prepare 
for possible commercialization of IPI-549. We do not know whether any clinical trials will begin as planned, will need to be 
restructured, or will be completed on schedule or at all. Significant preclinical study or clinical trial delays also could shorten 
any periods during which we, or any collaborators, may have the exclusive right to commercialize IPI-549 or allow our 
competitors, or the competitors of any current or future collaborators, to bring products to market before we, or any 
collaborators, do and impair our ability, or the ability of any collaborators, to successfully commercialize IPI-549 and may 
harm our business and results of operations. In addition, many of the factors that lead to clinical trial delays may ultimately lead 
to the denial of marketing approval of IPI-549, or, in the event that our clinical trials remain unable to demonstrate meaningful 
clinical benefit, our failure to reach the marketing approval stage at all. 

Results of preclinical studies and early clinical trials may not be successful, and even if they are successful, may not be 
predictive of results of future late-stage clinical trials. 

We are in early-stage clinical development for IPI-549. The outcome of preclinical studies and early clinical trials may 

not be predictive of the success of later clinical trials, and interim results of clinical trials do not necessarily predict success in 
future clinical trials. Many companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in 
late-stage clinical trials after achieving positive results in earlier development, and we could face similar setbacks. The design 
of a clinical trial can determine whether its results will support approval of a product and flaws in the design of a clinical trial 
may not become apparent until the clinical trial is well advanced. We may be unable to design and execute a clinical trial to 
support marketing approval. In addition, preclinical and clinical data are often susceptible to varying interpretations and 
analyses. Many companies that believed their product candidates performed satisfactorily in preclinical studies and clinical 
trials have nonetheless failed to obtain marketing approval for the product candidates. Even if we, or any collaborators, believe 

38 

 
 
 
that the results of clinical trials for IPI-549 warrant marketing approval, the FDA or comparable foreign regulatory authorities 
may disagree and may not grant marketing approval of IPI-549. 

In some instances, there can be significant variability in safety or efficacy results between different clinical trials of the 

same product candidate due to numerous factors, including changes in trial procedures set forth in protocols, differences in the 
size and type of the patient populations, changes in and adherence to the dosing regimen and other clinical trial protocols and 
the rate of dropout among clinical trial participants. If we fail to receive positive results in clinical trials of IPI-549, the 
development timeline and regulatory approval and commercialization prospects for IPI-549 and, correspondingly, our business 
and financial prospects, would be negatively impacted. 

Our inability to enroll sufficient numbers of patients in our clinical trials, or any delays in patient enrollment, could result 
in increased costs and longer development periods for our product candidates. 

Clinical trials require sufficient patient enrollment, which is a function of many factors, including: 

•  

•  

•  

•  

•  

•  

•  

•  

the size and nature of the patient population;  

the severity of the disease under investigation;  

the nature and complexity of the trial protocol, including eligibility criteria for the trial;  

the number of clinical trial sites and the proximity of patients to those sites;  

standard of care in disease under investigation;  

the commitment of clinical investigators to identify eligible patients;  

competing studies or trials; and  

clinicians’ and patients’ perceptions as to the potential advantages and risks of the drug being studied in relation to 
other available therapies, including any new drugs that may be approved for the indications we are investigating.  

Our failure to enroll patients in a clinical trial could delay the initiation or completion of the clinical trial beyond 

current expectations. In addition, the FDA or other foreign regulatory authorities could require us to conduct clinical trials with 
a larger number of patients than has been projected for any of our product candidates. As a result of these factors, we may not 
be able to enroll a sufficient number of patients in a timely or cost-effective manner. 

Furthermore, enrolled patients may drop out of a clinical trial, which could impair the validity or statistical 

significance of the clinical trial. A number of factors can influence the patient discontinuation rate, including, but not limited to: 

•  

the inclusion of a placebo arm in a trial;  

•   possible inactivity or low activity of the product candidate being tested at one or more of the dose levels being 

tested;  

•  

•  

the occurrence of adverse side effects, whether or not related to the product candidate; and  

the availability of numerous alternative treatment options, including clinical trials evaluating competing product 
candidates, that may induce patients to discontinue their participation in the trial.  

A delay in our clinical trial activities could adversely affect our ability to obtain regulatory approval for and to 

commercialize our product candidates, increase our operating expenses, and have a material adverse effect on our financial 
results. 

We have never obtained marketing approval for a product candidate, and we may be unable to obtain, or may be delayed in 
obtaining, marketing approval for IPI-549. 

We have never obtained marketing approval for a product candidate. It is possible that the FDA may refuse to accept 

for substantive review any new drug applications, or NDAs, that we submit for IPI-549 or may conclude after review of our 
data that our application is insufficient to obtain marketing approval of IPI-549. If the FDA does not accept or approve our 

39 

 
 
 
NDAs for IPI-549, it may require that we conduct additional clinical trials, preclinical studies or manufacturing validation 
studies and submit that data before it will reconsider our applications. Depending on the extent of these or any other FDA-
required trials or studies, approval of any NDA or application that we submit may be delayed by several years, or may require 
us to expend more resources than we have available. It is also possible that additional trials or studies, if performed and 
completed, may not be considered sufficient by the FDA to approve our NDAs. 

Any delay in obtaining, or an inability to obtain, marketing approvals would prevent us from commercializing IPI-549 
or any companion diagnostics, generating revenues and achieving and sustaining profitability. If any of these outcomes occurs, 
we may be forced to abandon our development efforts for IPI-549, which could significantly harm our business. 

Even if IPI-549 receives marketing approval, we or others may later discover that the product is less effective than 
previously believed or causes undesirable side effects that were not previously identified, which could compromise our 
ability, or that of any future collaborator, to market IPI-549, and we could become subject to costly and damaging product 
liability claims. 

Even if we receive regulatory approval for IPI-549, we will have tested it in only a small number of patients in 
carefully defined subsets and over a limited period of time during our clinical trials. If our applications for marketing are 
approved and more patients begin to use our products, or patients use IPI-549 for a longer period of time, IPI-549 might be less 
effective than indicated by our clinical trials. Furthermore, new risks and side effects associated with IPI-549 may be 
discovered or previously observed risks and side effects may become more prevalent and/or clinically significant. 

In addition, supplemental clinical trials that may be conducted on a drug following its initial approval may produce 

findings that are inconsistent with the trial results previously submitted to regulatory authorities. As a result, regulatory 
authorities may revoke their approvals, or we may be required to conduct additional clinical trials, make changes in labeling of 
IPI-549 (including a “black box” warning or a contraindication) or the manner in which it is administered, reformulate IPI-549 
or make changes and obtain new approvals for our and our suppliers’ manufacturing facilities. We also might have to withdraw 
or recall IPI-549 from the marketplace, and regulators might seize IPI-549. We might be subject to fines, injunctions, or the 
imposition of civil or criminal penalties. Any safety concerns with respect to IPI-549 may also result in a significant drop in the 
potential sales of IPI-549, damage to our reputation in the marketplace, or result in our and our collaborators’ becoming subject 
to lawsuits, including class actions. Any of these results could decrease or prevent any sales of our approved product or 
substantially increase the costs and expenses of commercializing and marketing our product and could negatively impact our 
stock price. 

Even if IPI-549 receives marketing approval, it may fail to achieve the degree of market acceptance by physicians, patients, 
third-party payors and others in the medical community necessary for commercial success, in which case we may not be 
able to generate significant revenues from product sales to become profitable. 

Even if IPI-549 obtains regulatory approval, it may not gain market acceptance among physicians, patients, managed 

care organizations, third-party payors, and the medical community for a variety of reasons including: 

•  

•  

•  

•  

•  

timing of our receipt of any marketing approvals, the terms of any such approvals and the countries in which any 
such approvals are obtained;  

timing of market introduction of competitive products;  

lower demonstrated clinical safety or efficacy, or less convenient or more difficult route of administration, 
compared to competitive products;  

lack of cost-effectiveness;  

lack of reimbursement from government payors, managed care plans and other third-party payors;  

•   prevalence and severity of side effects;  

•   potential advantages of alternative treatment methods;  

40 

 
 
 
 
•   whether it is designated under physician treatment guidelines as a first, second or third line therapy;  

•  

•  

•  

•  

•  

•  

changes in the standard of care for targeted indications;  

limitations or warnings, including distribution or use restrictions, contained in the product’s approved labeling;  

safety concerns with similar products marketed by others;  

the reluctance of the target population to try new therapies and of physicians to prescribe those therapies;  

the lack of success of our physician education programs; and  

ineffective sales, marketing and distribution support.  

If IPI-549 received marketing approval but fails to achieve market acceptance, we would not be able to generate 

significant revenue, which may adversely impact our ability to become profitable. 

Even if we receive regulatory approvals for marketing IPI-549 or other product candidates we may develop in the future, we 
could lose our regulatory approvals and our business would be adversely affected if we, our collaborators, or our contract 
manufacturers fail to comply with continuing regulatory requirements. 

The FDA and other regulatory agencies continue to review products even after they receive initial approval. If we 

receive approval to commercialize any product candidates, the manufacturing, marketing and sale of these drugs will be subject 
to continuing regulation, including compliance with quality systems regulations, the FDA's current good manufacturing 
practices, or cGMPs, adverse event requirements and prohibitions on promoting a product for unapproved uses. Enforcement 
actions resulting from our failure to comply with government and regulatory requirements could result in fines, suspension of 
approvals, withdrawal of approvals, product recalls, product seizures, mandatory operating restrictions, criminal prosecution, 
civil penalties and other actions that could impair the manufacturing, marketing and sale of any product candidates and our 
ability to conduct our business. 

If we are unable to establish sales, marketing and distribution capabilities or enter into sales, marketing and distribution 
arrangements with third parties, we may not be successful in commercializing any product candidates if approved. 

We do not have a sales, marketing or distribution infrastructure and have no experience in the sale, marketing or 

distribution of pharmaceutical products. To achieve commercial success for any approved product, we must either develop a 
sales and marketing organization or outsource these functions to third parties. The development of sales, marketing and 
distribution capabilities would require substantial resources, would be time consuming and could delay any product launch. If 
the commercial launch of a product candidate for which we recruit a sales force and establish marketing and distribution 
capabilities is delayed or does not occur for any reason, we could have prematurely or unnecessarily incurred these 
commercialization costs. This may be costly, and our investment could be lost if we cannot retain or reposition our sales and 
marketing personnel. In addition, we may not be able to hire or retain a sales force in the United States that is sufficient in size 
or has adequate expertise in the medical markets that we choose to target. If we are unable to establish or retain a sales force 
and marketing and distribution capabilities, our operating results may be adversely affected. If a potential partner has 
development or commercialization expertise that we believe is particularly relevant to one of our products, then we may seek to 
collaborate with that potential partner even if we believe we could otherwise develop and commercialize the product 
independently. 

As a result of entering into any such arrangements with third parties to perform sales, marketing and distribution 

services, our product revenues or the profitability of these product revenues may be lower, perhaps substantially lower, than if 
we were to directly market and sell products in those markets. Furthermore, we may be unsuccessful in entering into the 
necessary arrangements with third parties or may be unable to do so on terms that are favorable to us. In addition, we may have 
little or no control over such third parties, and any of them may fail to devote the necessary resources and attention to sell and 
market our products effectively. 

If we do not establish sales, marketing and distribution capabilities, either on our own or in collaboration with third 

parties, we will not be successful in commercializing any of our product candidates that receive marketing approval. 

41 

 
 
 
Our competitors and potential competitors may develop products that make IPI-549 less attractive or obsolete. 

Immuno-oncology is a highly competitive and rapidly changing segment of the pharmaceutical industry.  Many large 

pharmaceutical and biotechnology companies, academic institutions, governmental agencies and other public and private 
research organizations are pursuing the development of novel drugs that target various oncology diseases. We currently face, 
and expect to continue to face, intense and increasing competition as new products enter the market and advanced technologies 
become available. 

Our competitors may commence and complete clinical testing of their product candidates, obtain regulatory approvals 

and begin commercialization of their products sooner than we and/or our collaborators may for IPI-549. These competitive 
products may have superior safety or efficacy, have more attractive pharmacologic properties, or may be manufactured less 
expensively than IPI-549. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more 
resources being concentrated among a smaller number of our competitors. Smaller or early stage companies may also prove to 
be significant competitors, particularly through collaborative arrangements with large and established companies. These 
competitors also compete with us in recruiting and retaining qualified scientific and management personnel and establishing 
clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary 
for, the development of our product candidates. 

If we are unable to compete effectively against these companies on the basis of safety, efficacy or cost, then we may 

not be able to commercialize IPI-549 or achieve a competitive position in the market. This would adversely affect our ability to 
generate revenues. 

Even if we, or any future collaborators, are able to commercialize IPI-549, the product may become subject to unfavorable 
pricing regulations, third-party payor reimbursement practices or healthcare reform initiatives, any of which could harm 
our business. 

The commercial success of IPI-549 will depend substantially, both domestically and abroad, on the extent to which the 

costs of IPI-549 will be paid by third-party payors, including government health care programs and private health insurers. If 
coverage is not available, or reimbursement is limited, we, or any future collaborators, may not be able to successfully 
commercialize IPI-549. Even if coverage is provided, the approved reimbursement amount may not be high enough to allow us, 
or any future collaborators, to establish or maintain pricing sufficient to realize a sufficient return on our or their investments. 
In the United States, no uniform policy of coverage and reimbursement for products exists among third-party payors and 
coverage and reimbursement levels for products can differ significantly from payor to payor. As a result, the coverage 
determination process is often a time consuming and costly process that may require us to provide scientific and clinical 
support for the use of our products to each payor separately, with no assurance that coverage and adequate reimbursement will 
be applied consistently or obtained in the first instance. 

There is significant uncertainty related to third-party payor coverage and reimbursement of newly approved drugs. 

Marketing approvals, pricing and reimbursement for new drug products vary widely from country to country. Some countries 
require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after 
marketing or product licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains 
subject to continuing governmental control even after initial approval is granted. As a result, we, or any future collaborators, 
might obtain marketing approval for a product in a particular country, but then be subject to price regulations that delay 
commercial launch of the product, possibly for lengthy time periods, which may negatively impact the revenues we are able to 
generate from the sale of the product in that country. Adverse pricing limitations may hinder our ability or the ability of any 
future collaborators to recoup our or their investment in IPI-549, even if IPI-549 obtains marketing approval. 

Patients who are provided medical treatment for their conditions generally rely on third-party payors to reimburse all 

or part of the costs associated with their treatment. Therefore, our ability, and the ability of any future collaborators, to 
commercialize successfully IPI-549 will depend in part on the extent to which coverage and adequate reimbursement for IPI-
549 and related treatments will be available from third-party payors. Third-party payors decide which medications they will 
cover and establish reimbursement levels. The healthcare industry is acutely focused on cost containment, both in the United 

42 

 
 
 
States and elsewhere. Government authorities and other third-party payors have attempted to control costs by limiting coverage 
and the amount of reimbursement for particular medications, which could affect our ability or that of any future collaborators to 
sell IPI-549 profitably. These payors may not view IPI-549 as cost-effective, and coverage and reimbursement may not be 
available to our customers, or those of any future collaborators, or may not be sufficient to allow IPI-549 to be marketed on a 
competitive basis. Cost-control initiatives could cause us, or any future collaborators, to decrease the price we, or they, might 
establish for IPI-549, which could result in lower than anticipated product revenues. If the prices for IPI-549 decrease or if 
governmental and other third-party payors do not provide coverage or adequate reimbursement, our prospects for revenue and 
profitability will suffer. 

There may also be delays in obtaining coverage and reimbursement for newly approved drugs, and coverage may be 

more limited than the indications for which the drug is approved by the FDA or comparable foreign regulatory authorities. 
Moreover, eligibility for reimbursement does not imply that any drug will be paid for in all cases or at a rate that covers our 
costs, including research, development, manufacture, sale and distribution. Reimbursement rates may vary, by way of example, 
according to the use of the product and the clinical setting in which it is used. Reimbursement rates may also be based on 
reimbursement levels already set for lower cost drugs or may be incorporated into existing payments for other services. 

In addition, increasingly, third-party payors are requiring higher levels of evidence of the benefits and clinical 
outcomes of new technologies and are challenging the prices charged. Further, the net reimbursement for drug products may be 
subject to additional reductions if there are changes to laws that presently restrict imports of drugs from countries where they 
may be sold at lower prices than in the United States. An inability to promptly obtain coverage and adequate payment rates 
from both government-funded and private payors for IPI-549 could significantly harm our operating results, our ability to raise 
capital needed to commercialize IPI-549 and our overall financial condition. 

 If the FDA or comparable foreign regulatory authorities approve generic versions of IPI-549 that receive marketing 
approval, or such authorities do not grant IPI-549 appropriate periods of data exclusivity before approving generic versions 
of IPI-549, the sales of IPI-549 could be adversely affected.  

Once an NDA is approved, the product covered thereby becomes a “reference-listed drug” in the FDA’s publication, 

“Approved Drug Products with Therapeutic Equivalence Evaluations,” or the Orange Book. Manufacturers may seek approval 
of generic versions of reference-listed drugs through submission of abbreviated new drug applications, or ANDAs, in the 
United States. In support of an ANDA, a generic manufacturer need not conduct clinical trials. Rather, the applicant generally 
must show that its product has the same active ingredient(s), dosage form, strength, route of administration and conditions of 
use or labeling as the reference-listed drug and that the generic version is bioequivalent to the reference-listed drug, meaning it 
is absorbed in the body at the same rate and to the same extent. Generic products may be significantly less costly to bring to 
market than the reference-listed drug and companies that produce generic products are generally able to offer them at lower 
prices. Thus, following the introduction of a generic drug, a significant percentage of the sales of any branded product or 
reference-listed drug may be typically lost to the generic product. 

The FDA may not approve an ANDA for a generic product until any applicable period of non-patent exclusivity for 

the reference-listed drug has expired. The Federal Food, Drug, and Cosmetic Act, or FDCA, provides a period of five years of 
non-patent exclusivity for a new drug containing a new chemical entity, or NCE. Specifically, in cases where such exclusivity 
has been granted, an ANDA may not be filed with the FDA until the expiration of five years unless the submission is 
accompanied by a Paragraph IV certification that a patent covering the reference-listed drug is either invalid or will not be 
infringed by the generic product, in which case the applicant may submit its application four years following approval of the 
reference-listed drug. When the composition of matter patents underlying our product candidates expire, it is possible that 
another applicant could obtain approval to produce generic versions of our product candidates. If any product we develop does 
not receive five years of NCE exclusivity, the FDA may approve generic versions of such product three years after its date of 
approval, subject to the requirement that the ANDA applicant certifies to any patents listed for our products in the Orange 
Book. Manufacturers may seek to launch these generic products following the expiration of the applicable marketing 
exclusivity period, even if we still have patent protection for our product. 

43 

 
 
 
We may have significant product liability exposure that may harm our business and our reputation. 

We face exposure to significant product liability or other claims if IPI-549 is alleged to have caused harm. These risks 

are inherent in the testing, manufacturing and marketing of human medicinal products. Although we do not currently 
commercialize any products, claims could be made against us based on the use of IPI-549 or duvelisib in clinical trials. We 
currently have clinical trial insurance and will seek to obtain product liability insurance prior to the commercial launch of IPI-
549. Our insurance may not, however, provide adequate coverage against potential liabilities. Furthermore, clinical trial and 
product liability insurance is becoming increasingly expensive. As a result, we may be unable to maintain current amounts of 
insurance coverage or obtain additional or sufficient insurance at a reasonable cost. If we are sued for any injury caused by IPI-
549, our liability could exceed our insurance coverage and our total assets, and we would need to divert management attention 
to our defense. Claims against us, regardless of their merit or potential outcome, may also generate negative publicity or hurt 
our ability to recruit investigators and patients to our clinical trials, obtain physician acceptance of IPI-549, or expand our 
business. 

Risks Related to Our Dependence on Third Parties 

If a collaborator terminates or fails to perform its obligations under agreements with us, the development and 
commercialization of our product candidates could be delayed or terminated. 

In October 2016, we entered into an exclusive license agreement with Verastem to develop and commercialize 
products based on duvelisib. We may in the future seek other third-party collaborators. The success of a strategic alliance with 
any partner is largely dependent on the resources, efforts, technology and skills brought to such alliance by such partner. The 
benefits of such alliances will be reduced or eliminated if any such partner: 

•   decides not to devote the necessary resources because of internal constraints, such as limited personnel with the 
requisite scientific or commercial expertise, limited cash resources or specialized equipment limitations;  

•   decides not to pursue development and commercialization of the program or to continue or renew development or 

commercialization programs, based on clinical trial results, changes in the collaborators’ strategic focus or 
available funding, the belief that other product candidates may have a higher likelihood of obtaining regulatory 
approval or potential to generate a greater return on investment, or external factors, such as an acquisition, that 
divert resources or create competing priorities;  

•   does not perform its obligations as expected;  

•   does not have sufficient resources necessary or is otherwise unable to carry the program through clinical 

development, regulatory approval and commercialization;   

•  

cannot obtain the necessary regulatory approvals; 

•   delays clinical trials, provides insufficient funding for a clinical trial program, stops a clinical trial or abandons the 
program, repeats or conducts new clinical trials or requires a new formulation of the program for clinical testing;  

•  

independently develops, or develops with third parties, products that compete directly or indirectly with the 
program;  

•   does not commit sufficient resources to the marketing and distribution of such product or products;  

•   does not properly maintain or defend our intellectual property rights or uses our proprietary information in such a 

way as to invite litigation that could jeopardize or invalidate our intellectual property or proprietary information 
or expose us to potential litigation;  

•  

infringes the intellectual property rights of third parties, which may expose us to litigation and potential liability; 
or  

•  

terminates the collaboration prior to its completion.  

44 

 
 
 
If such partner were to terminate its arrangements with us, as was the case with AbbVie Inc., or AbbVie, or breach 

such arrangements, or fail to maintain the financial resources necessary to continue financing its portion of development, 
manufacturing, and commercialization costs, as applicable, we may not have the financial resources or capabilities necessary to 
continue development and commercialization of the product candidate on our own. Consequently, the development and 
commercialization of the affected product candidate could be delayed, curtailed or terminated, and we may find it difficult to 
attract a new collaborator for such product candidate. For example, as a result of AbbVie's termination of our strategic 
collaboration, we are not entitled to receive payments for any milestone that was not achieved prior to AbbVie’s delivery to us 
of its termination notice, and neither party has any financial obligation to the other, other than pursuant to the wind-down plan. 

Disputes and difficulties in these types of relationships are common, often due to priorities changing over time, 
conflicting priorities or conflicting interests. Merger and acquisition activity may exacerbate these conflicts. Much of the 
potential revenue from alliances consists of payments contingent upon the achievement of specified milestones and royalties 
payable on sales of any successfully developed drugs. Any such contingent revenue will depend upon our, and our 
collaborators’, ability to successfully develop, launch, market and sell new drugs. In some cases, we will not be involved in 
some or all of these processes, and we will depend entirely on our collaborators. 

If any future collaborator fails to develop or effectively commercialize a product candidate that is the subject of our 

strategic alliance with them, we may not be able to develop and commercialize such product candidate independently, and our 
financial condition and operations would be negatively impacted. 

We might seek to establish collaborations in the future and, if we are not able to establish them on commercially reasonable 
terms, we may have to alter our development and commercialization plans. 

In the future, we might seek out one or more other collaborators for the development and commercialization of IPI-
549. Likely collaborators may include large and mid-size pharmaceutical companies, regional and national pharmaceutical 
companies and biotechnology companies. In addition, if we are able to obtain marketing approval for IPI-549 from foreign 
regulatory authorities, we might enter into strategic relationships with international biotechnology or pharmaceutical companies 
for the commercialization of IPI-549 outside of the United States. 

We would face significant competition in seeking appropriate collaborators. Whether we reach a definitive agreement 

for an additional collaboration will depend, among other things, upon our assessment of the collaborator’s resources and 
expertise, the terms and conditions of the proposed collaboration, and the proposed collaborator’s evaluation of a number of 
factors. Those factors may include the potential differentiation of IPI-549 from competing product candidates, design or results 
of clinical trials, the likelihood of approval by the FDA or comparable foreign regulatory authorities and the regulatory pathway 
for any such approval, the potential market for IPI-549, the costs and complexities of manufacturing and delivering the product 
to patients and the potential of competing products. The collaborator may also consider alternative product candidates or 
technologies for similar indications that may be available for collaboration and whether such a collaboration could be more 
attractive than the one with us for IPI-549. 

Additional collaborations would be complex and time consuming to negotiate and document. 

Any collaboration agreements that we enter into in the future may contain restrictions on our ability to enter into 

potential collaborations or to otherwise develop IPI-549. 

Further, there have been a significant number of recent business combinations among large pharmaceutical companies 

that have resulted in a reduced number of potential future collaborators. We may not be able to negotiate collaborations on a 
timely basis, on acceptable terms, or at all. If we are unable to do so, we may have to curtail the development of IPI-549, 
reduce or delay its development, delay its potential commercialization or reduce the scope of any sales or marketing activities, 
or increase our expenditures and undertake development or commercialization activities at our own expense. 

45 

 
 
 
 
 
We rely on third parties to conduct our clinical trials, and those third parties may not perform satisfactorily. 

We rely on third parties such as contract research organizations, medical institutions and external investigators to 

enroll qualified patients, conduct our clinical trials and provide services in connection with such clinical trials, and we intend to 
rely on these and other similar entities in the future. Our reliance on these third parties for clinical development activities 
reduces our control over these activities. Accordingly, these third-party contractors may not complete activities on schedule, or 
may not conduct our clinical trials in accordance with regulatory requirements or the trial design. If these third parties do not 
successfully carry out their contractual obligations or meet expected deadlines, we may be required to replace them. Replacing 
a third-party contractor may result in a delay of the affected trial and unplanned costs. If this were to occur, our ability to obtain 
regulatory approval for and to commercialize IPI-549 could be delayed. 

In addition, we are responsible for ensuring that each of our clinical trials is conducted in accordance with the general 

investigational plan and protocol for the trial. The FDA requires us to comply with certain standards, referred to as good 
clinical practices, for conducting, recording and reporting the results of clinical trials to assure that data and reported results are 
credible and accurate and that the rights, integrity and confidentiality of trial participants are protected. Our reliance on third 
parties that we do not control does not relieve us of these responsibilities and requirements. If any of our trial investigators or 
third-party contractors does not comply with good clinical practices, we may not be able to use the data and reported results 
from the trial. If this noncompliance were to occur, our ability to obtain regulatory approval for and to commercialize IPI-549 
could be delayed. 

We currently rely on third-party manufacturers to produce our preclinical and clinical drug supplies, and we may also rely 
upon third-party manufacturers to produce commercial supplies of IPI-549. 

IPI-549 requires precise, high quality manufacturing. The third-party manufacturers on which we rely may not be able 

to comply with cGMPs, and other applicable government regulations and corresponding foreign standards. These regulations 
govern manufacturing processes and procedures and the implementation and operation of systems to control and assure the 
quality of products. The FDA and foreign regulatory authorities may, at any time, audit or inspect a manufacturing facility to 
ensure compliance with cGMPs and other quality standards. Any failure by our contract manufacturers to achieve and maintain 
high manufacturing and quality control standards could result in the inability of IPI-549 to be released for use in one or more 
countries. In addition, such a failure could result in, among other things, patient injury or death, product liability claims, 
penalties or other monetary sanctions, the failure of regulatory authorities to grant marketing approval of IPI-549, delays, 
suspension or withdrawal of approvals, license revocation, seizures or recalls of IPI-549, operating restrictions and/or criminal 
prosecution, any of which could significantly and adversely affect supply of IPI-549 and seriously hurt our business. 

Contract manufacturers may also encounter difficulties involving production yields or delays in performing their 

services. We do not have control over third-party manufacturers’ performance and compliance with applicable regulations and 
standards. If, for any reason, our manufacturers cannot perform as agreed, we may be unable to replace such third-party 
manufacturers in a timely manner, and the production of IPI-549 would be interrupted, resulting in delays in clinical trials and 
additional costs. Switching manufacturers may be difficult because the number of potential manufacturers is limited, the 
demand for such services is high and, depending on the type of material manufactured at the contract facility, the change in 
contract manufacturer must be submitted to and/or approved by the FDA and comparable regulatory authorities outside of the 
United States. In addition, a new manufacturer would have to be educated in, or develop substantially equivalent processes for, 
production of our product candidates after receipt of regulatory approval. It may be difficult or impossible for us to find a 
replacement manufacturer on acceptable terms quickly, or at all. 

To date, IPI-549 has been manufactured for preclinical testing and clinical trials primarily by third-party 

manufacturers. If the FDA or other regulatory agencies approve IPI-549 for commercial sale, we expect that we would continue 
to rely, at least initially, on third-party manufacturers to produce commercial quantities of IPI-549. These manufacturers may 
not be able to successfully increase the manufacturing capacity for IPI-549 in a timely or economical manner, or at all. 
Significant scale-up of manufacturing might entail changes in the manufacturing process that have to be submitted to or 
approved by the FDA or other regulatory agencies. If contract manufacturers engaged by us are unable to successfully increase 

46 

 
 
 
the manufacturing capacity for IPI-549, or we are unable to establish our own manufacturing capabilities, the commercial 
launch of any approved products may be delayed or there may be a shortage in supply. 

Risks Related to Our Intellectual Property 

If we fail to obtain or maintain necessary or useful intellectual property rights, we could encounter substantial delays in the 
research, development and commercialization of IPI-549. 

We currently have rights to certain intellectual property, through licenses from third parties, to develop IPI-549 and 
other product candidates that we may in the future develop under our PI3K inhibitor program. In addition, we have rights to 
certain intellectual property, through licenses from third parties, that we have exclusively licensed to Verastem to research, 
develop, manufacture and commercialize duvelisib. We may decide to license additional third-party technology that we deem 
necessary or useful for our development of IPI-549. However, we may be unable to acquire or in-license any compositions, 
methods of use, processes or other intellectual property rights from third parties that we identify as necessary for IPI-549 at a 
reasonable cost, or at all. The licensing or acquisition of third-party intellectual property rights is a competitive area, and 
several more established companies may pursue strategies to license or acquire third-party intellectual property rights that we 
may consider attractive. These established companies may have a competitive advantage over us due to their size, capital 
resources and greater clinical development and commercialization capabilities. In addition, companies that perceive us to be a 
competitor may be unwilling to assign or license rights to us. 

We sometimes collaborate with non-profit and academic institutions to accelerate our preclinical research or 

development under written agreements with these institutions. Typically, these institutions provide us with an option to 
negotiate a license to any of the institution’s rights in technology resulting from the collaboration. Regardless of such option, 
we may be unable to negotiate a license within the specified timeframe or under terms that are acceptable to us or we may 
decide not to execute such option if we believe such license is not necessary to pursue our program. If we are unable or opt not 
to do so, the institution may offer the intellectual property rights to other parties, potentially blocking our ability to pursue our 
program. 

If we do not obtain or maintain these intellectual property rights which we require, we could encounter substantial 

delays in developing and commercializing IPI-549 while we attempt to develop alternative technologies, methods and product 
candidates, which we may not be able to accomplish. If we are ultimately unable to do so, we may be unable to develop or 
commercialize IPI-549, which could harm our business significantly. 

If we fail to comply with our obligations under our existing and any future intellectual property licenses with third parties, 
we could lose license rights that are important to our business. 

We are party to several license agreements under which we license patent rights and other intellectual property related 
to our business, including an amended and restated development and license agreement with Takeda under which we obtained 
rights to discover, develop and commercialize pharmaceutical products targeting the delta and/or gamma isoforms of PI3K, 
including IPI-549 and duvelisib. We may enter into additional license agreements in the future. Our license agreements impose, 
and we expect that future license agreements will impose, various diligence, milestone payment, royalty, insurance and other 
obligations on us. If we fail to comply with our obligations under these licenses, our licensors may have the right to terminate 
these license agreements, in which event we might not be able to market IPI-549 that is covered by these agreements, or our 
licensors may convert the license to a non-exclusive license, which could adversely affect the value of IPI-549 being developed 
under the license agreement. Termination of these license agreements or reduction or elimination of our licensed rights may 
also result in our having to negotiate new or reinstated licenses with less favorable terms. If we fail to use diligent efforts to 
develop and commercialize products licensed under the Takeda Agreement, for example, or if Verastem materially breaches the 
Verastem Agreement, we could lose our license rights under the Takeda Agreement, including rights to IPI-549. 

47 

 
 
 
 
Our intellectual property licenses with third parties may be subject to disagreements over contract interpretations, which 
could narrow the scope of our rights to the relevant intellectual property or technology or increase our financial or other 
obligations to our licensors. 

The agreements under which we currently license intellectual property or technology from third parties are complex, 

and certain provisions in such agreements may be susceptible to multiple interpretations. The resolution of any contract 
interpretation disagreement that may arise could narrow what we believe to be the scope of our rights to the relevant 
intellectual property or technology, or increase what we believe to be our financial or other obligations under the relevant 
agreement, either of which could harm our business, financial condition, results of operations and prospects. 

Our success depends substantially upon our ability to obtain and maintain intellectual property protection for IPI-549. 

We own or hold exclusive licenses to a number of U.S. and foreign patents and patent applications directed to IPI-549. 

Our success depends on our ability to obtain patent protection both in the United States and in other countries for IPI-549, our 
methods of manufacture and our methods of use. Our ability to protect IPI-549 from unauthorized or infringing use by third 
parties depends substantially on our ability to obtain and enforce our patents. 

Due to evolving legal standards relating to the patentability, validity and enforceability of patents covering 
pharmaceutical inventions and molecular diagnostics and the claim scope of these patents, our ability to obtain and enforce 
patents that may issue from any pending or future patent applications is uncertain and involves complex legal, scientific and 
factual questions. The standards that the United States Patent and Trademark Office, or USPTO, and its foreign counterparts 
use to grant patents are not always applied predictably or uniformly and are subject to change. To date, no consistent policy has 
emerged regarding the breadth of claims allowed in pharmaceutical or molecular diagnostics patents. Thus, we cannot 
guarantee that any patents will issue from any pending or future patent applications owned by or licensed to us. Even if patents 
do issue, we cannot guarantee that the claims of these patents will be held valid or enforceable by a court of law, will provide us 
with any significant protection against competitive products or will afford us a commercial advantage over competitive 
products. 

The U.S. Congress passed the Leahy-Smith America Invents Act, or the America Invents Act, which became effective 
in March 2013. The America Invents Act reforms United States patent law in part by changing the standard for patent approval 
for certain patents from a “first to invent” standard to a “first to file” standard and developing a post-grant review system. This 
new law changes United States patent law in a way that may severely weaken our ability to obtain patent protection in the 
United States. Additionally, recent judicial decisions establishing new case law and a reinterpretation of past case law, as well 
as regulatory initiatives, may make it more difficult for us to protect our intellectual property. 

Issued patents that we have or may obtain or license may not provide us with any meaningful protection, prevent 

competitors from competing with us or otherwise provide us with any competitive advantage. Our competitors may be able to 
circumvent our patents by developing similar or alternative technologies or products in a non-infringing manner. 

If we do not obtain adequate intellectual property protection for our products in the United States, competitors could 
duplicate them without repeating the extensive testing that we will have been required to undertake to obtain approval by the 
FDA. Regardless of any patent protection, under the current statutory framework, the FDA is prohibited by law from approving 
any generic version of any of our products for up to five years after it has approved our product. Upon the expiration of that 
period, or if that time period is altered, the FDA could approve a generic version of our product unless we have patent 
protection sufficient for us to block that generic version. Without sufficient patent protection, the applicant for a generic version 
of our product would only be required to conduct a relatively inexpensive study to show that its product is bioequivalent to our 
product and would not have to repeat the studies that we conducted to demonstrate that the product is safe and effective. 

In the absence of adequate patent protection in other countries, competitors may similarly be able to obtain regulatory 

approval in those countries for products that duplicate IPI-549. The laws of some foreign jurisdictions do not protect 
intellectual property rights to the same extent as in the United States. Many companies have encountered significant difficulties 
in protecting and defending such rights in foreign jurisdictions. Some of our development efforts may be performed in China, 

48 

 
 
 
India and other countries outside of the United States through third-party contractors. We may not be able to monitor and assess 
intellectual property developed by these contractors effectively; therefore, we may not be able to appropriately protect this 
intellectual property and could lose valuable intellectual property rights. In addition, the legal protection afforded to inventors 
and owners of intellectual property in countries outside of the United States may not be as protective of intellectual property 
rights as in the United States, and we may, therefore, be unable to acquire and protect intellectual property developed by these 
contractors to the same extent as if these development activities were being conducted in the United States. If we encounter 
difficulties in protecting our intellectual property rights in foreign jurisdictions, our business prospects could be substantially 
harmed. 

In addition, we rely on intellectual property assignment agreements with our collaborators, vendors, employees, 

consultants, clinical investigators, scientific advisors and other collaborators to grant us ownership of new intellectual property 
that is developed by them. These agreements may not result in the effective assignment to us of that intellectual property. 

Other agreements through which we license patent rights may not give us control over patent prosecution or 

maintenance, so that we may not be able to control which claims or arguments are presented and may not be able to secure, 
maintain, or successfully enforce necessary or desirable patent protection from those patent rights. If we are unable to obtain 
control over patent prosecution in these other agreements, we cannot be certain that patent prosecution and maintenance 
activities by our licensors have been or will be conducted in compliance with applicable laws and regulations or will result in 
valid and enforceable patents. 

We, or any future partners, collaborators or licensees, may fail to identify patentable aspects of inventions made in the 
course of development and commercialization activities before it is too late to obtain patent protection for them. Therefore, we 
may miss potential opportunities to strengthen our patent position. 

It is possible that defects of form in the preparation or filing of our patents or patent applications may exist, or may 

arise in the future, for example with respect to proper priority claims, inventorship, claim scope or patent term adjustments. If 
we or our partners, collaborators, licensees, or licensors, whether current or future, fail to establish, maintain or protect such 
patents and other intellectual property rights, such rights may be reduced or eliminated. If our partners, collaborators, licensees 
or licensors, are not fully cooperative or disagree with us as to the prosecution, maintenance or enforcement of any patent 
rights, such patent rights could be compromised. If there are material defects in the form, preparation, prosecution, or 
enforcement of our patents or patent applications, such patents may be invalid and/or unenforceable, and such applications may 
never result in valid, enforceable patents. Any of these outcomes could impair our ability to prevent competition from third 
parties, which may have an adverse impact on our business. As a result, our ownership of key intellectual property could be 
compromised. 

Confidentiality agreements may not adequately prevent disclosure of trade secrets and other proprietary information. 

To protect our proprietary technology, we rely in part on confidentiality agreements with our vendors, collaborators, 
employees, consultants, scientific advisors, clinical investigators and other collaborators. We generally require each of these 
individuals and entities to execute a confidentiality agreement at the commencement of a relationship with us. These 
agreements may not effectively prevent disclosure of confidential information and may not provide an adequate remedy in the 
event of unauthorized disclosure or misuse of confidential information or other breaches of the agreements. 

In addition, we may rely on trade secrets to protect our technology, especially where we do not believe patent 
protection is appropriate or obtainable. Trade secrets are, however, difficult to protect. Others may independently discover our 
trade secrets and proprietary information, and in such case we could not assert any trade secret rights against such party. 
Enforcing a claim that a party illegally obtained and is using our trade secrets is difficult, expensive and time consuming, and 
the outcome is unpredictable. In addition, courts outside of the United States may be less willing to protect trade secrets. Costly 
and time-consuming litigation could be necessary to seek to enforce and determine the scope of our proprietary rights and could 
result in a diversion of management’s attention, and failure to obtain or maintain trade secret protection could adversely affect 
our competitive business position. 

49 

 
 
 
Patent interference, opposition or similar proceedings relating to our intellectual property portfolio are costly, and an 
unfavorable outcome could prevent us from commercializing IPI-549. 

Patent applications in the United States are maintained in confidence for up to 18 months after their filing. In some 
cases, however, patent applications remain confidential in the USPTO for the entire time prior to issuance as a U.S. patent. 
Similarly, publication of discoveries in the scientific or patent literature often lags behind actual discoveries. Consequently, we 
cannot be certain that we were the first to invent, or the first to file patent applications on, IPI-549 or its therapeutic use. In the 
event that a third party has also filed a U.S. patent application relating to IPI-549 or a similar invention, we may have to 
participate in interference or derivation proceedings declared by the USPTO or the third party to determine priority of invention 
in the United States. An adverse decision in an interference or derivation proceeding may result in the loss of rights under a 
patent or patent application. In addition, the cost of interference proceedings could be substantial. 

Claims by third parties of intellectual property infringement are costly and distracting, and could deprive us of valuable 
rights we need to develop or commercialize IPI-549. 

Our commercial success will depend on whether there are third-party patents or other intellectual property relevant to 
our potential products that may block or hinder our ability to develop and commercialize IPI-549. We may not have identified 
all U.S. and foreign patents or published applications that may adversely affect our business either by blocking our ability to 
manufacture or commercialize our drugs or by covering similar technologies that adversely affect the applicable market. In 
addition, we may undertake research and development with respect to IPI-549, even when we are aware of third-party patents 
that may be relevant to IPI-549, on the basis that we may challenge or license such patents. There are no assurances that such 
licenses will be available on commercially reasonable terms, or at all. If such licenses are not available, we may become subject 
to patent litigation and, while we cannot predict the outcome of any litigation, it may be expensive and time consuming. If we 
are unsuccessful in litigation concerning patents owned by third parties, we may be precluded from selling IPI-549. 

While we are not currently aware of any litigation or third-party claims of intellectual property infringement related to 
IPI-549, the biopharmaceutical industry is characterized by extensive litigation regarding patents and other intellectual property 
rights. Other parties may obtain patents and claim that the use of our technologies infringes these patents or that we are 
employing their proprietary technology without authorization. We could incur substantial costs and diversion of management 
and technical personnel in defending against any claims that the manufacture and sale of our potential products or use of our 
technologies infringes any patents, or defending against any claim that we are employing any proprietary technology without 
authorization. The outcome of patent litigation is subject to uncertainties that cannot be adequately quantified in advance, 
including the demeanor and credibility of witnesses and the identity of the adverse party, especially in pharmaceutical patent 
cases that may turn on the testimony of experts as to technical facts upon which experts may reasonably disagree. In the event 
of a successful claim of infringement against us, we may be required to: 

•   pay substantial damages;  

•  

stop developing, manufacturing and/or commercializing IPI-549;  

•   develop non-infringing product candidates, technologies and methods; and  

•   obtain one or more licenses from other parties, which could result in our paying substantial royalties or the 

granting of cross-licenses to our technologies.  

If any of the foregoing were to occur, we may be unable to commercialize IPI-549, or we may elect to cease certain of 

our business operations, either of which could severely harm our business. 

We may undertake infringement or other legal proceedings against third parties, causing us to spend substantial resources 
on litigation and exposing our own intellectual property portfolio to challenge. 

Competitors may infringe our patents. To prevent infringement or unauthorized use, we may need to file infringement 

suits, which are expensive and time-consuming. In an infringement proceeding, a court may decide that one or more of our 
patents is invalid, unenforceable, or both. Even if the validity of our patents is upheld, a court may refuse to stop the other party 
from using the technology at issue on the ground that the other party’s activities are not covered by our patents. In this case, 

50 

 
 
 
third parties may be able to use our patented technology without paying licensing fees or royalties. Policing unauthorized use of 
our intellectual property is difficult, and we may not be able to prevent misappropriation of our proprietary rights, particularly 
in countries where the laws may not protect such rights as fully as in the United States. In addition, third parties may 
affirmatively challenge our rights to, or the scope or validity of, our patent rights. 

Patent terms may be inadequate to protect our competitive position on our products for an adequate amount of time. 

Given the amount of time required for the development, testing and regulatory review of new product candidates, 

patents protecting such candidates might expire before or shortly after such candidates are commercialized. We expect to seek 
extensions of patent terms in the United States and, if available, in other countries where we are prosecuting patents. In the 
United States, the Drug Price Competition and Patent Term Restoration Act of 1984 permits a patent term extension of up to 
five years beyond the normal expiration of the patent, which is limited to the approved indication (or any additional indications 
approved during the period of extension). However, the applicable authorities, including the FDA and the USPTO in the United 
States, 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 be able to take advantage of our investment in development and clinical trials by 
referencing our clinical and preclinical data and launch their product earlier than might otherwise be the case. 

We may be subject to claims by third parties asserting that our employees or we have misappropriated their intellectual 
property, or claiming ownership of what we regard as our own intellectual property. 

Many of our employees and our licensors’ employees, including our senior management, were previously employed at 

universities or at other biotechnology or pharmaceutical companies, some of which may be competitors or potential 
competitors. Some of these employees, including each member of our senior management, executed proprietary rights, non-
disclosure and non-competition agreements, or similar agreements, in connection with such previous employment. Although we 
try to ensure that our employees do not use the proprietary information or know-how of others in their work for us, we may be 
subject to claims that we or these employees have used or disclosed intellectual property, including trade secrets or other 
proprietary information, of any such third party. Litigation may be necessary to defend against such claims. If we fail in 
defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or 
personnel or sustain damages. Such intellectual property rights could be awarded to a third party, and we could be required to 
obtain a license from such third party to commercialize our technology or products. Such a license may not be available on 
commercially reasonable terms or at all. Even if we are successful in defending against such claims, litigation could result in 
substantial costs and be a distraction to management. 

In addition, while we typically require our employees, consultants and contractors who may be involved in the 
development of intellectual property to execute agreements assigning such intellectual property to us, we may be unsuccessful 
in executing such an agreement with each party who in fact develops intellectual property that we regard as our own, which 
may result in claims by or against us related to the ownership of such intellectual property. If we fail in prosecuting or 
defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights. Even if 
we are successful in prosecuting or defending against such claims, litigation could result in substantial costs and be a 
distraction to our senior management and scientific personnel. 

Obtaining and maintaining our patent protection depends on compliance with various procedural, document submission, 
fee payment and other requirements imposed by governmental patent agencies, and our patent protection could be reduced 
or eliminated for non-compliance with these requirements. 

The USPTO and various foreign governmental patent agencies require compliance with a number of procedural, 

documentary, fee payment and other provisions during the patent process. There are situations in which non-compliance can 
result in abandonment or lapse of a patent or patent application, resulting in partial or complete loss of patent rights in the 
relevant jurisdiction. If we fail to comply with these requirements, competitors might be able to enter the market earlier than 
would otherwise have been the case, which could decrease our revenue from that product. 

51 

 
 
 
Risks Related to Regulatory Approval and Marketing of IPI-549 and Other Legal Compliance Matters 

Even if we complete the necessary preclinical studies and clinical trials, the regulatory approval process is expensive, time-
consuming and uncertain and may prevent us from obtaining approvals for the commercialization of IPI-549. If we or our 
collaborators are not able to obtain, or if there are delays in obtaining, required regulatory approvals, we or they will not be 
able to commercialize IPI-549, and our ability to generate revenue will be materially impaired. 

IPI-549 and the activities associated with its development and commercialization, including its design, testing, 

manufacture, safety, efficacy, record keeping, labeling, storage, approval, advertising, promotion, sale and distribution, export 
and import, are subject to comprehensive regulation by the FDA and other regulatory agencies in the United States and by the 
European Medicines Agency and comparable regulatory authorities in other countries. Failure to obtain marketing approval for 
IPI-549 will prevent us from commercializing IPI-549. We and our collaborators have not received approval to market IPI-549 
from regulatory authorities in any jurisdiction. We have only limited experience in filing and supporting the applications 
necessary to gain marketing approvals and expect to rely on third-party contract research organizations to assist us in this 
process. 

Securing marketing approval requires the submission of extensive preclinical and clinical data and supporting 
information to the various regulatory authorities for each therapeutic indication to establish the product candidate’s safety and 
efficacy. Securing regulatory approval also requires the submission of information about the product manufacturing process to, 
and inspection of manufacturing facilities by, the relevant regulatory authority. IPI-549 may not be effective, may be only 
moderately effective or may prove to have undesirable or unintended side effects, toxicities or other characteristics that may 
preclude our obtaining marketing approval or prevent or limit commercial use. 

The process of obtaining marketing approvals, both in the United States and abroad, is expensive, may take many 

years if additional clinical trials are required, if approval is obtained at all, and can vary substantially based upon a variety of 
factors, including the type, complexity and novelty of the product candidates involved. Changes in marketing approval policies 
during the development period, changes in or the enactment of additional statutes or regulations, or changes in regulatory 
review for each submitted product application, may cause delays in the approval or rejection of an application. The FDA and 
comparable authorities in other countries have substantial discretion in the approval process and may refuse to accept any 
application or may decide that our data is insufficient for approval and require additional preclinical, clinical or other studies. In 
addition, varying interpretations of the data obtained from preclinical and clinical testing could delay, limit or prevent 
marketing approval of IPI-549. Any marketing approval we or our collaborators ultimately obtain may be limited or subject to 
restrictions or post-approval commitments that render the approved product not commercially viable. 

Accordingly, if we or our collaborators experience delays in obtaining approval or if we or they fail to obtain approval 

of IPI-549, the commercial prospects for IPI-549 may be harmed, and our ability to generate revenues will be materially 
impaired. 

Failure to obtain marketing approval in foreign jurisdictions would prevent IPI-549 from being marketed in such 
jurisdictions. 

In order to market and sell our medicines in the European Union and many other jurisdictions, we or our third party 
collaborators must obtain separate marketing approvals and comply with numerous and varying regulatory requirements. The 
approval procedure varies among countries and can involve additional testing. The time required to obtain approval may differ 
substantially from that required to obtain FDA approval. The regulatory approval process outside the United States generally 
includes all of the risks associated with obtaining FDA approval. In addition, in many countries outside the United States, a 
product must be approved for reimbursement before the product can be approved for sale in that country. We or our third party 
collaborators may not obtain approvals from regulatory authorities outside the United States on a timely basis, if at all. 
Approval by the FDA does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one 
regulatory authority outside the United States does not ensure approval by regulatory authorities in other countries or 
jurisdictions or by the FDA. We may not be able to file for marketing approvals and may not receive necessary approvals to 
commercialize IPI-549 in any market. 

52 

 
 
 
Even if we or our collaborators obtain marketing approvals for IPI-549, the terms of approvals and ongoing regulation of 
IPI-549 may limit how we manufacture and market IPI-549, which could impair our ability to generate revenue. 

Once marketing approval has been granted, an approved product and its manufacturer and marketer are subject to 
ongoing review and extensive regulation. We, and any collaborators, must therefore comply with requirements concerning 
advertising and promotion for IPI-549. Promotional communications with respect to prescription drugs are subject to a variety 
of legal and regulatory restrictions and must be consistent with the information in the product’s approved labeling. Thus, we 
and any collaborators will not be able to promote any products we develop for indications or uses for which they are not 
approved. 

In addition, manufacturers of approved products and those manufacturers’ facilities are required to comply with 

extensive FDA requirements, including ensuring that quality control and manufacturing procedures conform to cGMPs 
applicable to drug manufacturers or quality assurance standards applicable to medical device manufacturers, which include 
requirements relating to quality control and quality assurance as well as the corresponding maintenance of records and 
documentation and reporting requirements. We, any contract manufacturers we may engage in the future, our current or future 
collaborators and their contract manufacturers will also be subject to other regulatory requirements, including submissions of 
safety and other post-marketing information and reports, registration and listing requirements, requirements regarding the 
distribution of samples to physicians, recordkeeping, and costly post-marketing studies or clinical trials and surveillance to 
monitor the safety or efficacy of the product such as the requirement to implement a risk evaluation and mitigation strategy. 

Accordingly, assuming we, or any of our collaborators, receive marketing approval for IPI-549, we, our collaborators, 
and our and their contract manufacturers will continue to expend time, money and effort in all areas of regulatory compliance, 
including manufacturing, production, product surveillance and quality control. 

If we, and any collaborators, are not able to comply with post-approval regulatory requirements, we, and our 

collaborators, could have the marketing approvals for our products withdrawn by regulatory authorities and our, or any 
collaborators’, ability to market any future products could be limited, which could adversely affect our ability to achieve or 
sustain profitability. Further, the cost of compliance with post-approval regulations may have a negative effect on our operating 
results and financial condition. 

IPI-549 could be subject to restrictions or withdrawal from the market and we may be subject to substantial penalties if we 
fail to comply with regulatory requirements or if we experience unanticipated problems with IPI-549, when and if it is 
approved. 

Any product candidate for which we or our collaborators obtain marketing approval, along with the manufacturing 

processes, post-approval clinical data, labeling, advertising and promotional activities for such product, will be subject to 
continual requirements of and review by the FDA and other regulatory authorities. These requirements include submissions of 
safety and other post-marketing information and reports, registration and listing requirements, cGMP requirements relating to 
quality control and manufacturing, quality assurance and corresponding maintenance of records and documents, and 
requirements regarding the distribution of samples to physicians and recordkeeping. Even if marketing approval of IPI-549 is 
granted, the approval may be subject to limitations on the indicated uses for which the product may be marketed or to the 
conditions of approval, or contain requirements for costly post-marketing testing and surveillance to monitor the safety or 
efficacy of the medicine, including the requirement to implement a risk evaluation and mitigation strategy. 

The FDA and other agencies, including the Department of Justice, or the DOJ, closely regulate and monitor the post-

approval marketing and promotion of products to ensure that they are marketed and distributed only for the approved 
indications and in accordance with the provisions of the approved labeling. The FDA and DOJ impose stringent restrictions on 
manufacturers’ communications regarding off-label use and if we do not market our products for their approved indications, we 
may be subject to enforcement action for off-label marketing. Violations of the Federal Food, Drug, and Cosmetic Act and 
other statutes, including the False Claims Act, relating to the promotion and advertising of prescription drugs may lead to 
investigations and enforcement actions alleging violations of federal and state health care fraud and abuse laws, as well as state 
consumer protection laws. 

53 

 
 
 
In addition, later discovery of previously unknown adverse events or other problems with our products, manufacturers 

or manufacturing processes, or failure to comply with regulatory requirements, may yield various results, including: 

•  

•  

•  

•  

restrictions on such products, manufacturers or manufacturing processes;  

restrictions on the labeling or marketing of a product;  

restrictions on distribution or use of a product;  

requirements to conduct post-marketing studies or clinical trials;  

•   warning letters or untitled letters;  

•   withdrawal of the products from the market;  

•  

•  

refusal to approve pending applications or supplements to approved applications that we submit;  

recall of products;  

•   damage to relationships with any potential collaborators;  

•   unfavorable press coverage and damage to our reputation;  

•  

•  

•  

fines, restitution or disgorgement of profits or revenues;  

suspension or withdrawal of marketing approvals;  

refusal to permit the import or export of our products;  

•   product seizure;  

•  

•  

injunctions or the imposition of civil or criminal penalties; and  

litigation involving patients using our products.  

Non-compliance with European Union requirements regarding safety monitoring or pharmacovigilance, and with 

requirements related to the development of products for the pediatric population, can also result in significant financial 
penalties. Similarly, failure to comply with the European Union’s requirements regarding the protection of personal information 
can also lead to significant penalties and sanctions. 

Our relationships with healthcare providers, physicians and third party payors will be subject to applicable anti-kickback, 
fraud and abuse and other healthcare laws and regulations, which, in the event of a violation, could expose us to criminal 
sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings. 

Healthcare providers, physicians and third party payors will play a primary role in the recommendation and 

prescription of any product candidates for which we obtain marketing approval. Our future arrangements with healthcare 
providers, physicians and third party payors may expose us to broadly applicable fraud and abuse and other healthcare laws and 
regulations that may constrain the business or financial arrangements and relationships through which we market, sell and 
distribute any products for which we obtain marketing approval. Restrictions under applicable federal and state healthcare laws 
and regulations include the following: 

•  

•  

the federal Anti-Kickback Statute prohibits, among other things, persons from knowingly and willfully soliciting, 
offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in 
return for, either the referral of an individual for, or the purchase, order or recommendation or arranging of, any 
good or service, for which payment may be made under a federal healthcare program such as Medicare and 
Medicaid;  

the federal False Claims Act imposes criminal and civil penalties, including through civil whistleblower or qui 
tam actions, against individuals or entities for, among other things, knowingly presenting, or causing to be 
presented, false or fraudulent claims for payment by a federal healthcare program or making a false statement or 
record material to payment of a false claim or avoiding, decreasing or concealing an obligation to pay money to 
the federal government, with potential liability including mandatory treble damages and significant per-claim 
penalties, currently set at $5,500 to $11,000 per false claim;  

54 

 
 
 
•  

the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, imposes criminal and civil 
liability for 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 and its 

implementing regulations, also imposes obligations, including mandatory contractual terms, with respect to 
safeguarding the privacy, security and transmission of individually identifiable health information;  

•  

•  

the federal Physician Payments Sunshine Act requires applicable manufacturers of covered drugs to report 
payments and other transfers of value to physicians and teaching hospitals; and  

analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws and 
transparency statutes, may apply to sales or marketing arrangements and claims involving healthcare items or 
services reimbursed by non-governmental third party payors, including private insurers.  

Some state laws require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary 
compliance guidelines and the relevant compliance guidance promulgated by the federal government and may require drug 
manufacturers to report information related to payments and other transfers of value to physicians and other healthcare 
providers or marketing expenditures. State and foreign laws also govern the privacy and security of health information in some 
circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus 
complicating compliance efforts. 

If our operations are found to be in violation of any of the laws described above or any governmental regulations that 

apply to us, we may be subject to penalties, including civil and criminal penalties, damages, fines and the curtailment or 
restructuring of our operations. Any penalties, damages, fines, curtailment or restructuring of our operations could adversely 
affect our financial results. We are developing and implementing a corporate compliance program designed to ensure that we 
will market and sell any future products that we successfully develop from our product candidates in compliance with all 
applicable laws and regulations, but we cannot guarantee that this program will protect us from governmental investigations or 
other actions or lawsuits stemming from a failure to be in compliance with such laws or regulations. If any such actions are 
instituted against us and we are not successful in defending ourselves or asserting our rights, those actions could have a 
significant impact on our business, including the imposition of significant fines or other sanctions. 

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

regulations will involve substantial costs. It is possible that governmental authorities will conclude that our business practices 
may not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare 
laws and regulations. If our operations are found to be in violation of any of these laws or any other governmental regulations 
that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, fines, 
imprisonment, exclusion of products from government funded healthcare programs, such as Medicare and Medicaid, and the 
curtailment or restructuring of our operations. If any of the physicians or other healthcare providers or entities with whom we 
expect to do business is found to be not in compliance with applicable laws, they may be subject to criminal, civil or 
administrative sanctions, including exclusions from government funded healthcare programs. 

Current and future legislation may increase the difficulty and cost for us and any collaborators to obtain marketing 
approval of IPI-549 and affect the price we, or they, may obtain. 

In the United States and some foreign jurisdictions, there have been a number of legislative and regulatory changes 

and proposed changes regarding the healthcare system that could, among other things, prevent or delay marketing approval of 
IPI-549, restrict or regulate post-approval activities and affect our ability, or the ability of any collaborators, to profitably sell 
any products for which we, or they, obtain marketing approval. We expect that current laws, as well as other healthcare reform 

55 

 
 
 
measures that may be adopted in the future, may result in more rigorous coverage criteria and in additional downward pressure 
on the price that we, or any collaborators, may receive for any approved products. 

For example, in March 2010, President Obama signed into law the Patient Protection and Affordable Care Act, as 

amended by the Health Care Education Reconciliation Act, or the ACA. Among the provisions of the ACA of potential 
importance to our business and IPI-549 are the following: 

•  

•  

•  

•  

•  

•  

•  

•  

an annual, non-deductible fee on any entity that manufactures or imports specified branded prescription drugs and 
biologic agents;  

an increase in the statutory minimum rebates a manufacturer must pay under the Medicaid Drug Rebate Program;  

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;  

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

a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer 50% point-of-
sale discounts off 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 individuals enrolled in Medicaid managed care 
organizations;  

expansion of eligibility criteria for Medicaid programs;  

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

•   new requirements to report certain financial arrangements with physicians and teaching hospitals;  

•  

•  

•  

•  

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

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

a new Independent Payment Advisory Board, or IPAB, which has authority to recommend certain changes to the 
Medicare program to reduce expenditures by the program that could result in reduced payments for prescription 
drugs; and  

established the Center for Medicare and Medicaid Innovation within CMS to test innovative payment and service 
delivery models.  

Other legislative changes have been proposed and adopted since the ACA was enacted. These changes include the 

Budget Control Act of 2011, which, among other things, led to aggregate reductions to Medicare payments to providers of up to 
2% per fiscal year that started in 2013 and, due to subsequent legislation, will continue until 2025. In addition, the American 
Taxpayer Relief Act of 2012, among other things, reduced Medicare payments to several providers and increased the statute of 
limitations period for the government to recover overpayments to providers from three to five years. Moreover, the Medicare 
Access and CHIP Reauthorization Act of 2015, among other things, introduced the Quality Payment Program under which 
Medicare physicians will be required to either participate in an Advanced Alternative Payment Model, or AAPM, and assume 
some risk for patient outcomes, or participate in the Merit-Based Incentive Payment System, or MIPS, which will provide an 
incentive compensation structure that will rate physicians in part based on cost of services.  These new laws may result in 
additional reductions in Medicare and other healthcare funding and otherwise affect the prices we may obtain for any of our 
product candidates for which we may obtain regulatory approval or the frequency with which any such product candidate is 
prescribed or used. 

We expect that the ACA, as well as other healthcare reform measures that may be adopted in the future, may result in 
additional reductions in Medicare and other healthcare funding, more rigorous coverage criteria, new payment methodologies 
and additional downward pressure on the price that we receive for any approved product and/or the level of reimbursement 

56 

 
 
 
 
 
physicians receive for administering any approved product we might bring to market. Reductions in reimbursement levels may 
negatively impact the prices we receive or the frequency with which our products are prescribed or administered. Any reduction 
in reimbursement from Medicare or other government programs may result in a similar reduction in payments from private 
payors. 

In addition, with the new Administration and Congress, there will likely be additional legislative changes, including 
repeal and replacement of certain provisions of the ACA.  It remains to be seen, however, precisely what the new legislation 
will provide, when it will be enacted and what impact it will have on the availability of healthcare and containing or lowering 
the cost of healthcare. Such reforms could have an adverse effect on anticipated revenue from product candidates that we may 
successfully develop and for which we may obtain marketing approval and may affect our overall financial condition and 
ability to develop or commercialize product candidates.  For example, the President and congressional leaders have expressed 
interest in repealing certain ACA provisions and replacing them with alternatives that may be less costly and provide state 
Medicaid programs and private health plans more flexibility. It is possible that these repeal and replacement initiatives, if 
enacted into law, could ultimately result in fewer individuals having health insurance coverage or in individuals having 
insurance coverage with less generous benefits.  The scope of potential future legislation to repeal and replace ACA provisions 
is highly uncertain in many respects, and it is possible that some of the ACA provisions that generally are not favorable for the 
research-based pharmaceutical industry could also be repealed along with ACA coverage expansion provisions. 

Moreover, legislative and regulatory proposals have been made to expand post-approval requirements and restrict 

sales and promotional activities for pharmaceutical products. We cannot be sure whether additional legislative changes will be 
enacted, or whether the FDA regulations, guidance or interpretations will be changed, or what the impact of such changes on 
the marketing approvals of our product candidates, if any, may be. In addition, increased scrutiny by the United States Congress 
of the FDA’s approval process may significantly delay or prevent marketing approval, as well as subject us and any 
collaborators to more stringent product labeling and post-marketing testing and other requirements. 

Governments outside the United States tend to impose strict price controls, which may adversely affect our revenues, if any. 

In some countries, such as the countries of the European Union, the pricing of prescription pharmaceuticals is subject 

to governmental control and access. In these countries, pricing negotiations with governmental authorities can take 
considerable time after the receipt of marketing approval for a product. To obtain reimbursement or pricing approval in some 
countries, we, or any current or future collaborators, may be required to conduct a clinical trial that compares the cost-
effectiveness of our product to other available therapies. If reimbursement of our products is unavailable or limited in scope or 
amount, or if pricing is set at unsatisfactory levels, our business could be materially harmed. 

We are subject to U.S. and foreign anti-corruption and anti-money laundering laws with respect to our operations and non-
compliance with such laws can subject us to criminal and/or civil liability and harm our business. 

We are subject to the U.S. Foreign Corrupt Practices Act of 1977, as amended, or the FCPA, the U.S. domestic bribery 

statute contained in 18 U.S.C. § 201, the U.S. Travel Act, the USA PATRIOT Act, and possibly other state and national anti-
bribery and anti-money laundering laws in countries in which we conduct activities. Anti-corruption laws are interpreted 
broadly and prohibit companies and their employees, agents, third-party intermediaries, joint venture partners and collaborators 
from authorizing, promising, offering, or providing, directly or indirectly, improper payments or benefits to recipients in the 
public or private sector. We may have direct or indirect interactions with officials and employees of government agencies or 
government-affiliated hospitals, universities, and other organizations. In addition, we may engage third party intermediaries to 
promote our clinical research activities abroad and/or to obtain necessary permits, licenses, and other regulatory approvals. We 
can be held liable for the corrupt or other illegal activities of these third-party intermediaries, our employees, representatives, 
contractors, partners, and agents, even if we do not explicitly authorize or have actual knowledge of such activities. 

We cannot assure you that our employees and third party intermediaries will comply with such anti-corruption laws. 

Noncompliance with anti-corruption and anti-money laundering laws could subject us to whistleblower complaints, 
investigations, sanctions, settlements, prosecution, other enforcement actions, disgorgement of profits, significant fines, 

57 

 
 
 
 
damages, other civil and criminal penalties or injunctions, suspension and/or debarment from contracting with certain persons, 
the loss of export privileges, reputational harm, adverse media coverage, and other collateral consequences. If any subpoenas, 
investigations, or other enforcement actions are launched, or governmental or other sanctions are imposed, or if we do not 
prevail in any possible civil or criminal litigation, our business, results of operations and financial condition could be materially 
harmed. In addition, responding to any action will likely result in a materially significant diversion of management’s attention 
and resources and significant defense and compliance costs and other professional fees. In certain cases, enforcement 
authorities may even cause us to appoint an independent compliance monitor which can result in added costs and 
administrative burdens. 

We are subject to governmental export and import controls that could impair our ability to compete in international markets 
due to licensing requirements and subject us to liability if we are not in compliance with applicable laws. 

Our products and solutions are subject to export control and import laws and regulations, including the U.S. Export 

Administration Regulations, U.S. Customs regulations, and various economic and trade sanctions regulations administered by 
the U.S. Treasury Department’s Office of Foreign Assets Controls. Exports of our products and solutions outside of the United 
States must be made in compliance with these laws and regulations. If we fail to comply with these laws and regulations, we 
and certain of our employees could be subject to substantial civil or criminal penalties, including the possible loss of export or 
import privileges; fines, which may be imposed on us and responsible employees or managers; and, in extreme cases, the 
incarceration of responsible employees or managers. 

In addition, changes in our products or solutions or changes in applicable export or import laws and regulations may 
create delays in the introduction, provision, or sale of our products and solutions in international markets, prevent customers 
from using our products and solutions or, in some cases, prevent the export or import of our products and solutions to certain 
countries, governments or persons altogether. Any limitation on our ability to export, provide, or sell our products and solutions 
could adversely affect our business, financial condition and results of operations. 

If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or 
penalties or incur costs that could harm our business. 

We are subject to numerous environmental, health and safety laws and regulations, including those governing 
laboratory procedures and the handling, use, storage, treatment and disposal of hazardous materials and wastes. From time to 
time and in the future, our operations may involve the use of hazardous and flammable materials, including chemicals and 
biological materials, and may also produce hazardous waste products. Even if we contract with third parties for the disposal of 
these materials and waste products, we cannot completely eliminate the risk of contamination or injury resulting from these 
materials. In the event of contamination or injury resulting from the use or disposal of our hazardous materials, we could be 
held liable for any resulting damages, and any liability could exceed our resources. We also could incur significant costs 
associated with civil or criminal fines and penalties for failure to comply with such laws and regulations. 

We maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our 

employees resulting from the use of hazardous materials, but this insurance may not provide adequate coverage against 
potential liabilities. However, we do not maintain insurance for environmental liability or toxic tort claims that may be asserted 
against us. 

In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety 

laws and regulations. Current or future environmental laws and regulations may impair our research, development or 
production efforts. In addition, failure to comply with these laws and regulations may result in substantial fines, penalties or 
other sanctions. 

Unfavorable global economic conditions could adversely affect our business, financial condition or results of operations. 

Our results of operations could be adversely affected by general conditions in the global economy and in the global 

financial markets. The most recent global financial crisis caused extreme volatility and disruptions in the capital and credit 
markets. A severe or prolonged economic downturn, such as the most recent global financial crisis, could result in a variety of 

58 

 
 
 
risks to our business, including weakened demand for our product candidates and our ability to raise additional capital when 
needed on acceptable terms, if at all. This is particularly true in the European Union, which is undergoing a continued severe 
economic crisis. A weak or declining economy could strain our suppliers, possibly resulting in supply disruption, or cause 
delays in payments for our services by third-party payors or our collaborators. Any of the foregoing could harm our business 
and we cannot anticipate all of the ways in which the current economic climate and financial market conditions could adversely 
impact our business. 

Security breaches may disrupt our operations and harm our operating results. 

Our network security and data recovery measures may not be adequate to protect against computer viruses, break-ins 
and similar disruptions from unauthorized tampering with our computer systems. The misappropriation, theft, sabotage or any 
other type of security breach with respect to any of our proprietary and confidential information that is electronically stored, 
including research or clinical data, could have a material adverse impact on our business, operating results and financial 
condition. Additionally, any break-in or trespass of our facilities that results in the misappropriation, theft, sabotage or any 
other type of security breach with respect to our proprietary and confidential information, including research or clinical data, or 
that results in damage to our research and development equipment and assets, could have a material adverse impact on our 
business, operating results and financial condition. 

Our employees may engage in misconduct or other improper activities, including non-compliance with regulatory standards 
and requirements, which could cause significant liability for us and harm our reputation. 

We are exposed to the risk of employee fraud or other misconduct, including intentional failures to comply with FDA 

regulations or similar regulations of comparable foreign regulatory authorities, provide accurate information to the FDA or 
comparable foreign regulatory authorities, comply with manufacturing standards we have established, comply with federal and 
state healthcare fraud and abuse laws and regulations and similar laws and regulations established and enforced by comparable 
foreign regulatory authorities, report financial information or data accurately or disclose unauthorized activities to us. 
Employee misconduct could also involve the improper use of information obtained in the course of clinical trials, which could 
result in regulatory sanctions and serious harm to our reputation. It is not always possible to identify and deter employee 
misconduct, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or 
unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a 
failure to be in compliance with such laws, standards or regulations. If any such actions are instituted against us, and we are not 
successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business and 
results of operations, including the imposition of significant fines or other sanctions. 

Risks Related to Employee Matters and Managing Growth 

If we are not able to retain key personnel and advisors, we may not be able to operate our business successfully. 

We are highly dependent on our executive leadership team. All of these individuals are employees-at-will, which 

means that neither Infinity nor the employee is obligated to a fixed term of service and that the employment relationship may 
be terminated by either Infinity or the employee at any time, without notice and whether or not cause or good reason exists for 
such termination. The loss of the services of any of these individuals might impede the achievement of our research, 
development and commercialization objectives. We do not maintain “key person” insurance on any of our employees. 

Retaining qualified scientific and business personnel is also critical to our success. Our industry has experienced a 
high rate of turnover of management personnel in recent years. If we lose one or more of our executive officers or other key 
employees, our ability to implement our business strategy successfully could be seriously harmed. This competition is 
particularly intense near our headquarters in Cambridge, Massachusetts. We may not be able to attract or retain these personnel 
on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for similar 
personnel.  In addition, as a result of our restructurings throughout 2016, we may face additional challenges in retaining our 
existing senior management and key employees for our company as our business needs change. 

59 

 
 
 
We also experience competition in the hiring of scientific personnel from universities and research institutions. In 

addition, we rely on consultants and advisors, including scientific and clinical advisors, to assist us in formulating our research 
and development strategy. Our consultants and advisors may be employed by other entities, have commitments under 
consulting or advisory contracts with third parties that limit their availability to us, or both. 

We may undertake strategic acquisitions in the future, and any difficulties from integrating acquired businesses, products, 
product candidates and technologies could adversely affect our business and our stock price. 

We may acquire additional businesses, products, product candidates, or technologies that complement or augment our 

existing business. We may not be able to integrate any acquired businesses, products, product candidates or technologies 
successfully or operate any acquired business profitably. Integrating any newly acquired business, product, product candidate, 
or technology could be expensive and time-consuming. Integration efforts often place a significant strain on managerial, 
operational and financial resources and could prove to be more difficult or expensive than we expect. The diversion of the 
attention of our management to, and any delay or difficulties encountered in connection with, any future acquisitions we may 
consummate could result in the disruption of our ongoing business or inconsistencies in standards, controls, procedures and 
policies that could adversely affect our ability to maintain relationships with customers, suppliers, collaborators, employees and 
others with whom we have business dealings. We may need to raise additional funds through public or private debt or equity 
financings to acquire any businesses, products, product candidates, or technologies which may result in, among other things, 
dilution for stockholders or the incurrence of indebtedness. 

As part of our efforts to acquire businesses, products, product candidates and technologies or to enter into other 

significant transactions, we conduct business, legal and financial due diligence in an effort to identify and evaluate material 
risks involved in the transaction. We will also need to make certain assumptions regarding acquired product candidates, 
including, among other things, development costs, the likelihood of receiving regulatory approval and the market for such 
product candidates. If we are unsuccessful in identifying or evaluating all such risks or our assumptions prove to be incorrect, 
we might not realize some or all of the intended benefits of the transaction. If we fail to realize intended benefits from 
acquisitions we may consummate in the future, our business and financial results could be adversely affected. 

In addition, we will likely incur significant expenses in connection with our efforts, if any, to consummate 
acquisitions. These expenses may include fees and expenses for investment bankers, attorneys, accountants and other advisers 
in connection with our efforts and could be incurred whether or not an acquisition is consummated. Even if we consummate a 
particular acquisition, we may incur as part of such acquisition substantial closure costs associated with, among other things, 
elimination of duplicate operations and facilities. In such case, the incurrence of these costs could adversely affect our financial 
results for particular quarterly or annual periods. 

Risks Related to Our Common Stock 

Our common stock may have a volatile trading price and low trading volume. 

The market price of our common stock has been and we expect it to continue to be subject to significant fluctuations. 

Some of the factors that may cause the market price of our common stock to fluctuate include: 

•  

•  

•  

•  

the results of our current and any future clinical trials of IPI-549;  

the timing and costs associated with the wind-down of our involvement with duvelisib; 

future sales of, and the trading volume in, our common stock;  

announcements of strategic transactions relating to our programs or our company; 

•   our entry into key agreements, including those related to the acquisition or in-licensing of new programs, or the 
termination of key agreements, including our amended and restated development and license agreement with 
Takeda or the Verastem Agreement;  

•  

the results and timing of regulatory reviews relating to the approval of IPI-549;  

60 

 
 
 
•  

•  

•  

•  

•  

•  

•  

the initiation of, material developments in, or conclusion of litigation, including but not limited to litigation to 
enforce or defend any of our intellectual property rights or to defend product liability claims;  

the failure of IPI-549, if approved, to achieve commercial success;  

the results of clinical trials conducted by others on drugs that would compete with IPI-549;  

the regulatory approval of drugs that would compete with IPI-549;  

issues in manufacturing IPI-549;  

the loss of key employees;  

changes in estimates or recommendations, or publication of inaccurate or unfavorable research about our 
business, by securities analysts who cover our common stock;  

•  

future financings through the issuance of equity or debt securities or otherwise;  

•   healthcare reform measures, including changes in the structure of healthcare payment systems;  

•   our cash position and period-to-period fluctuations in our financial results; and  

•   general and industry-specific economic and/or capital market conditions.  

Moreover, the stock markets in general have experienced substantial volatility that has often been unrelated to the 

operating performance of individual companies. These broad market fluctuations may also adversely affect the trading price of 
our common stock. 

In the past, when the market price of a stock has been volatile, as our stock price may be, holders of that stock have 

occasionally brought securities class action litigation against the company that issued the stock. If any of our stockholders were 
to bring a lawsuit of this type against us, even if the lawsuit is without merit, negative publicity could be generated, and we 
could incur substantial costs defending the lawsuit. A stockholder lawsuit could also divert the time and attention of our 
management. 

If we fail to meet the requirements for continued listing on the NASDAQ Global Select Market, our common stock could be 
delisted from trading, which would decrease the liquidity of our common stock and our ability to raise additional capital. 

Our common stock is currently listed for quotation on the NASDAQ Global Select Market. We are required to meet 

specified requirements in order to maintain our listing on the NASDAQ Global Select Market, including, among other things, a 
minimum bid price of $1.00 per share. Our bid price has been below $3.00 per share since June 2016. If our bid price falls 
further to below $1.00 per share for 30 consecutive business days, we will receive a deficiency notice from NASDAQ advising 
us that we have 180 days to regain compliance by maintaining a minimum bid price of at least $1.00 for a minimum of ten 
consecutive business days. Under certain circumstances, NASDAQ could require that the minimum bid price exceed $1.00 for 
more than ten consecutive days before determining that a company complies. 

If we fail to satisfy the NASDAQ Global Select Market’s continued listing requirements, we may transfer to the 

NASDAQ Capital Market, which generally has lower financial requirements for initial listing, to avoid delisting, or, if we fail 
to meet its listing requirements, the OTC Bulletin Board. A transfer of our listing to the NASDAQ Capital Market or having our 
common stock trade on the OTC Bulletin Board could adversely affect the liquidity of our common stock.  Any such event 
could make it more difficult to dispose of, or obtain accurate quotations for the price of, our common stock, and there also 
would likely be a reduction in our coverage by securities analysts and the news media, which could cause the price of our 
common stock to decline further.  We may also face other material adverse consequences in such event, such as negative 
publicity, a decreased ability to obtain additional financing, diminished investor and/or employee confidence, and the loss of 
business development opportunities, some or all of which may contribute to a further decline in our stock price. 

61 

 
 
 
The estimates and judgments we make, or the assumptions on which we rely, in preparing our consolidated financial 
statements could prove inaccurate. 

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. Such estimates and judgments include those 
related to revenue recognition, impairment of long-lived assets, restructuring, accrued expenses, assumptions in the valuation of 
stock-based compensation and income taxes. We base our estimates and judgments on historical experience, facts and 
circumstances known to us and on various assumptions that we believe to be reasonable under the circumstances. These 
estimates and judgments, or the assumptions underlying them, may change over time or prove inaccurate. If this is the case, we 
may be required to restate our financial statements, which could in turn subject us to securities class action litigation. 
Defending against such potential litigation relating to a restatement of our financial statements would be expensive and would 
require significant attention and resources of our management. Moreover, our insurance to cover our obligations with respect to 
the ultimate resolution of any such litigation may be inadequate. As a result of these factors, any such potential litigation could 
have a material adverse effect on our financial results and cause our stock price to decline. 

If we are not able to maintain effective internal control under Section 404 of the Sarbanes-Oxley Act, our business and 
stock price could be adversely affected. 

Section 404 of the Sarbanes-Oxley Act of 2002 requires us, on an annual basis, to review and evaluate our internal 

control and requires our independent auditors to attest to the effectiveness of our internal control over financial reporting. Any 
failure by us to maintain the effectiveness of our internal control in accordance with the requirements of Section 404 of the 
Sarbanes-Oxley Act, which could be impacted by our restructuring or employee turnover, as such requirements exist today or 
may be modified, supplemented or amended in the future, could have a material adverse effect on our business, operating 
results and stock price. 

We might not be able to utilize a significant portion of our net operating loss carryforwards and research and development 
tax credit carryforwards. 

We have incurred significant net losses since our inception and cannot guarantee when, if ever, we will become 

profitable. To the extent that we continue to generate federal and state taxable losses, unused net operating loss and tax credit 
carryforwards will carry forward to offset future taxable income. These net operating loss and tax credit carryforwards could 
expire unused and be unavailable to offset future income tax liabilities. In addition, under Section 382 of the Internal Revenue 
Code of 1986, as amended, and corresponding provisions of state law, if a corporation undergoes an “ownership change,” 
which is generally defined as a greater than 50% change, by value, in its equity ownership over a three-year period, the 
corporation’s ability to use its pre-change net operating loss carryforwards and other pre-change tax attributes to offset its post-
change income may be limited. We may experience ownership changes in the future as a result of subsequent shifts in our stock 
ownership, some of which may be outside of our control. In addition, we have not conducted a detailed study to document 
whether our historical activities qualify to support the research and development credit carryforwards. A detailed study could 
result in adjustment to our research and development credit carryforwards. If we determine that an ownership change has 
occurred and our ability to use our historical net operating loss and tax credit carryforwards is materially limited, or if our 
research and development carryforwards are adjusted, it would harm our future operating results by effectively increasing our 
future tax obligations. 

We do not anticipate paying cash dividends, so you must rely on stock price appreciation for any return on your investment. 

We anticipate retaining any future earnings for reinvestment in our research and development programs and growing 
infrastructure and personnel to support our commercialization efforts. Therefore, we do not anticipate paying cash dividends in 

the future. As a result, only appreciation of the price of our common stock will provide a return to stockholders. Investors 
seeking cash dividends should not invest in our common stock. 

62 

 
 
Our executive officers, directors and major shareholders may be able to exert significant control over the company, which 
may make an acquisition of us difficult. 

To our knowledge, based on the number of shares of our common stock outstanding on March 1, 2017 stockholders 

beneficially owning 5% or more of our common stock, as well as our executive officers, directors, and their respective 
affiliates, beneficially owned in the aggregate approximately 48% of our common stock. These stockholders have the ability to 
influence our company through this ownership position. For example, as a result of this concentration of ownership, these 
stockholders, if acting together, may have the ability to affect the outcome of matters submitted to our stockholders for 
approval, including the election and removal of directors, changes to our equity compensation plans and any merger or similar 
transaction. This concentration of ownership may, therefore, harm the market price of our common stock by: 

•   delaying, deferring or preventing a change in control of Infinity;  

•  

impeding a merger, consolidation, takeover or other business combination involving Infinity; or  

•   discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control of Infinity.  

Anti-takeover provisions in our organizational documents and Delaware law may make an acquisition of us difficult. 

We are incorporated in Delaware. Anti-takeover provisions of Delaware law and our organizational documents may 

make a change in control more difficult. Also, under Delaware law, our Board of Directors may adopt additional anti-takeover 
measures. For example, our charter authorizes our Board of Directors to issue up to 1,000,000 shares of undesignated preferred 
stock and to determine the terms of those shares of stock without any further action by our stockholders. If our Board of 
Directors exercises this power, it could be more difficult for a third party to acquire a majority of our outstanding voting stock. 
Our charter and bylaws also contain provisions limiting the ability of stockholders to call special meetings of stockholders. 

Our stock incentive plan generally permits our Board of Directors to provide for acceleration of vesting of options 

granted under that plan in the event of certain transactions that result in a change of control. If our Board of Directors uses its 
authority to accelerate vesting of options, this action could make an acquisition more costly, and it could prevent an acquisition 
from going forward. 

Moreover, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the 
Delaware General Corporation Law statute, which generally prohibits a person who owns in excess of 15% of our outstanding 
voting stock from engaging in a transaction with us for a period of three years after the date on which such person acquired in 
excess of 15% of our outstanding voting common stock, unless the transaction is approved by our Board of Directors and 
holders of at least two-thirds of our outstanding voting stock, excluding shares held by such person. The prohibition against 
such transactions does not apply if, among other things, prior to the time that such person became an interested stockholder, our 
Board of Directors approved the transaction in which such person acquired 15% or more of our outstanding voting stock. The 
existence of the foregoing provisions could limit the price that investors might be willing to pay in the future for shares of our 
common stock. 

Our investments are subject to risks that may cause losses and affect the liquidity of these investments. 

As of December 31, 2016, we had $92.1 million in cash, cash equivalents and available-for-sale securities. We 
historically have invested these amounts in money market funds, corporate obligations, U.S. government-sponsored enterprise 
obligations, U.S. Treasury securities and mortgage-backed securities meeting the criteria of our investment policy, which 
prioritizes the preservation of our capital. Corporate obligations may include obligations issued by corporations in countries 
other than the United States, including some issues that have not been guaranteed by governments and government agencies. 
Our investments are subject to general credit, liquidity, market and interest rate risks and instability in the global financial 
markets. We may realize losses in the fair value of these investments or a complete loss of these investments. In addition, 
should our investments cease paying or reduce the amount of interest paid to us, our interest income would suffer. These market 
risks associated with our investment portfolio may have a material adverse effect on our financial results and the availability of 
cash to fund our operations. 

Item 1B. Unresolved Staff Comments 

None. 

63 

 
 
 
 
 
Item 2. Properties 

On September 25, 2014, we entered into a lease covering 61,000 square feet of office space located at 784 Memorial 

Drive. The lease expires on March 31, 2025, and contains two separate five-year options to extend its term to 2035. We 
currently lease space to subtenants in 784 Memorial Drive totaling approximately 12,000 square feet. 

Item 3. Legal Proceedings 

We are not a party to any material legal proceedings. 

Item 4. Mine Safety Disclosures 

Not applicable. 

PART II 

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

Market Information 

Our common stock is traded on the NASDAQ Global Select Market under the symbol “INFI.” The following table 

sets forth the range of high and low sales prices for our common stock for the quarterly periods indicated, as reported by 
NASDAQ. Such quotations represent inter-dealer prices without retail mark up, mark down or commission and may not 
necessarily represent actual transactions. 

First quarter 
Second quarter 
Third quarter 
Fourth quarter 

 $ 

2016 

2015 

High 

Low 

High 

Low 

8.16     $ 
6.63    
1.80    
1.65    

4.75     $ 
1.24    
1.24    
0.84    

17.42     $ 
15.44    
11.13    
10.85    

13.66  
10.23  
7.56  
7.19  

Holders 

As of March 1, 2017, there were 51 holders of record of our common stock. 

Dividends 

We have never paid cash dividends on our common stock, and we do not expect to pay any cash dividends in the 

foreseeable future. 

Comparative Stock Performance Graph 

The information included under the heading “Comparative Stock Performance Graph” included in this Item 5 of Part 

II of this Annual Report on Form 10-K shall not be deemed to be “soliciting material” or subject to Regulation 14A or 14C, 
shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, which we refer to 
as the Exchange Act, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in 
any filing under the Securities Act of 1933, as amended, or the Exchange Act. 

The graph below shows a comparison of cumulative total stockholder returns from December 31, 2011 through 

December 31, 2016 for our common stock, the NASDAQ Stock Market (U.S.) Index and the NASDAQ Biotechnology Index. 

64 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The graph assumes that $100 was invested in our common stock and in each index on December 31, 2011, and that all 
dividends were reinvested. No cash dividends have been declared or paid on our common stock. 

The stockholder returns shown on the graph below are not necessarily indicative of future performance, and we will 

not make or endorse any predictions as to future stockholder returns. 

65 

 
 
 
 
 
 
 
 
 
Item 6. Selected Financial Data 

The following financial data should be read in conjunction with our consolidated financial statements and related notes 
appearing elsewhere in this report. Amounts below are in thousands, except for shares and per share amounts. 

Statement of Operations Data: 
Collaboration revenue 
Operating expenses: 
Research and development(1) 
General and administrative(1) 
Total operating expenses 
Gain on AbbVie Opt-Out (2) 

Gain on termination of Purdue 
entities alliance 
Loss from operations 
Other income (expense), net 
Income from Massachusetts tax 
incentive award 
Loss before income taxes 
Income taxes 
Net loss 
Basic and diluted loss per common 
share 
Basic and diluted weighted 
average number of common shares 
outstanding 

2016 

2015 

2014 

2013 

2012 

Year Ended December 31, 

 $ 

18,723     $ 

109,066     $ 

164,995    $ 

—    $ 

47,114  

119,611    
42,219    
161,830    
112,216    

— 

(30,891 )  
790    

199,109    
37,065    
236,174    
—    

— 

(127,108 )  
(933 )  

— 

(30,101 )  
—    
(30,101 )   $ 

— 

(128,041 )  
(335 )  
(128,376 )   $ 

143,633    
29,285    
172,918    
—    

— 

(7,923 )  
(9,310 )  

— 

(17,233 )  
(183 )  
(17,416)   $ 

99,760    
27,916    
127,676    
—    

— 

(127,676 )  
896    

— 

(126,780 )  
—    

(126,780)   $ 

118,595  
27,882  
146,477  
—  

46,555 

(52,808 ) 
(1,349 ) 

193 

(53,964 ) 
—  
(53,964 ) 

(0.61 )   $ 

(2.62 )   $ 

(0.36)   $ 

(2.64)   $ 

(1.70 ) 

 $ 

$ 

49,608,234 

49,083,479 

48,561,653 

47,936,001 

31,711,264 

$ 

Selected Balance Sheet Data: 
Cash, cash equivalents and available-
for-sale securities, including long-term 
Working capital 
Total assets 
Due to Takeda, less current portion(3) 
Construction liability(4) 
Financing obligation(5) 
Accumulated deficit 
Total stockholders’ equity 

2016 

2015 

2014 

2013 

2012 

As of December 31, 

  $ 

92,064 
77,797    
125,655    
—    
—    
19,591    
(625,689 )  
82,454    

  $ 

245,231 
184,641    
288,821    
—    
—    
20,007    
(595,588 )  
98,557    

  $ 

333,245
289,691    
369,144    
—    
15,456    
—    
(467,212 )  
209,472    

  $ 

214,468
202,735   
230,710   
6,456   
—   
—   
(449,796)  
201,275   

326,635
311,086 
335,660 
6,252 
— 
— 
(323,016) 
310,205 

During the year ended December 31, 2016, we recorded $21.2 million of expense related to restructuring activities of 

On June 24, 2016, AbbVie delivered to us a written notice that AbbVie was exercising its right to terminate the AbbVie 

(1) 
which $13.6 million is recorded in research and development expense and $7.6 million is recorded in general and 
administrative expense.    
(2) 
Agreement unilaterally upon 90 days’ written notice, which we refer to as the AbbVie Opt-Out. The gain on AbbVie Opt-Out 
was non-recurring and due to the written notice of termination received from AbbVie on June 24, 2016. The AbbVie Opt-Out 
was irrevocable, and we had no obligation to continue to provide AbbVie any services related to Duvelisib Products after June 
24, 2016.  The termination of the AbbVie Agreement became effective on September 23, 2016.  See Note 12 of the consolidated 
financial statements. 

66 

 
 
 
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
In September 2014, we entered into a lease agreement with BHX, LLC, as trustee of 784 Realty Trust, for the lease of 

During the year ended December 31, 2012, we recorded $14.4 million in research and development expense related to 

(3) 
the fair value of a release payment of $15 million, payable in installments, pursuant to the amended and restated agreement 
with Takeda Pharmaceuticals Company Limited, or Takeda. We paid $1.7 million, $6.7 million and the final $6.7 million of this 
$15 million release payment during the years ended December 31, 2012, December 31, 2014, and December 31, 2015, 
respectively. 
(4) 
office space at 784 Memorial Drive, Cambridge, Massachusetts. Upon lease commencement, building construction was 
initiated, and we were involved in the construction project. We are deemed for accounting purposes to be the owner of the 
building during the construction period. As of December 31, 2014, we recorded building and accumulated construction costs of 
approximately $16.0 million and a construction liability of approximately $15.5 million. See Note 11 of the consolidated 
financial statements. 
(5) 
In June 2015, the construction of 784 Memorial Drive, Cambridge, Massachusetts was substantially complete, and the 
leased premises, which we refer to as the Leased Premises, was available for occupancy. The construction-in-progress was then 
placed in service, and the construction liability was reclassified to a financing obligation as the transaction did not qualify for 
sale-leaseback accounting due to our continuing involvement. At December 31, 2016 and 2015, we held building and 
accumulated construction costs net of accumulated depreciation of approximately $22.0 million and $23.0 million, respectively, 
and a financing obligation of approximately $19.6 million and $20.0 million, respectively. See Note 11 of the consolidated 
financial statements. 

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

The following discussion of our financial condition and results of operations should be read in conjunction with our 

consolidated financial statements and related notes included elsewhere in this report. Some of the information contained in this 
discussion and analysis and set forth elsewhere in this report, including information with respect to our plans and strategy for 
our business, includes forward-looking statements that involve risks and uncertainties. You should review the section titled 
“Risk Factors” in Part I, Item 1A of this report for a discussion of important factors that could cause actual results to differ 
materially from the results described in or implied by the forward-looking statements contained in the following discussion and 
analysis. 

Overview 

We are an innovative biopharmaceutical company dedicated to developing best-in-class medicines for patients with 
difficult-to-treat diseases. We combine proven scientific expertise with a passion for developing novel small molecule drugs 
that target disease pathways for potential applications in oncology. We are focusing our efforts on our lead product candidate, 
IPI-549, an orally administered, clinical-stage, immuno-oncology product candidate that selectively inhibits the enzyme 
phosphoinositide-3-kinase-gamma, or PI3K-gamma. 

IPI-549 is currently being studied in a Phase 1, first-in-human clinical trial that is expected to enroll approximately 

175 patients with advanced solid tumors. The study includes a dose-escalation phase to evaluate the safety, tolerability, 
pharmacokinetics, and pharmacodynamics of IPI-549 as a monotherapy, as well as a dose-escalation phase evaluating IPI-549 
in combination with nivolumab, also known as Opdivo. Nivolumab is a checkpoint inhibitor therapy being commercialized by 
Bristol-Myers Squibb, or BMS, that targets a receptor in the human body called programmed death receptor 1, or PD-1. If 
supported by data from the initial portion of the study, a Phase 1b portion would investigate IPI-549 in patients with selected 
solid tumors, including non-small cell lung cancer, melanoma and squamous cell carcinoma of the head and neck, whose 
tumors have shown initial resistance or subsequently have developed resistance to immune checkpoint therapy. 

We have primarily incurred operating losses since inception. Our net loss was $30.1 million, $128.4 million and $17.4 
million for the years ended December 31, 2016, 2015 and 2014, respectively. As of December 31, 2016, we had an accumulated 
deficit of $625.7 million. As we have no approved products, we have not generated any revenue from product sales and, to 
date, all our revenue has been generated under research collaboration agreements.  As of December 31, 2016, we had 
approximately $92.1 million in cash, cash equivalents and available-for-sale securities. We will need substantial additional 

67 

 
 
 
 
 
 
 
funds to support our planned operations.  In the absence of additional funding or business development activities, we believe 
that our existing cash, cash equivalents and available-for-sale securities at December 31, 2016 will be adequate to satisfy our 
capital needs into the first quarter of 2019 based on planned levels of spending. We have not included any of the $28 million of 
potential future Verastem, Inc., or Verastem, milestone payments in this forecast. 

We expect to continue to spend significant resources to fund the development and potential commercialization of IPI-

549, and we expect to incur significant operating losses for the foreseeable future. We expect to incur substantial operating 
losses over the next several years as our clinical trial and drug manufacturing activities increase. In addition, in connection with 
seeking and possibly obtaining regulatory approval of any of our product candidates, we expect to incur significant 
commercialization expenses for product sales, marketing, manufacturing and distribution. As a result, we expect that our 
accumulated deficit will also increase significantly. 

Financial Overview 

Revenue 

To date, all of our revenue has been generated under research collaboration agreements. The terms of these research 

collaboration agreements may include payment to us of non-refundable, upfront license fees, funding or reimbursement of 
research and development efforts, milestone payments if specified objectives are achieved, and/or royalties on product sales. In 
the future, we may generate revenue from a combination of product sales, research and development support services and 
milestone payments in connection with strategic relationships, as well as royalties resulting from the sales of products 
developed under licenses of our intellectual property. We expect that any potential future revenue we generate will fluctuate 
from year to year as a result of the timing and amount of license fees, research and development reimbursement, milestone and 
other payments earned under our collaborative or strategic relationships and the amount and timing of payments that we earn 
upon the sale of our products, to the extent any are successfully commercialized. 

Research and Development Expense 

We are a drug development company. Our research and development expense has historically consisted primarily of 

the following: 

compensation of personnel associated with research and development activities; 
clinical testing costs, including payments made to contract research organizations; 
costs of comparator drugs used in clinical studies; 
costs of purchasing laboratory supplies and materials; 
costs of manufacturing product candidates for preclinical testing and clinical studies; 
costs associated with the licensing of research and development programs; 

•  
•  
•  
•  
•  
•  
•   preclinical testing costs, including costs of toxicology studies; 
•  
•  
•  

fees paid to external consultants; 
fees paid to professional service providers for independent monitoring and analysis of our clinical trials; 
costs for collaboration partners to perform research activities, including development milestones for which a 
payment is due when achieved; 
•   depreciation of equipment; and 
•  
allocated costs of facilities. 

General and Administrative Expense 

General and administrative expense primarily consists of compensation of personnel in executive, finance, accounting, 

legal, information technology infrastructure, corporate communications, corporate development, human resources and 
commercial functions. Other costs include facilities costs not otherwise included in research and development expense, early 
commercial efforts and professional fees for legal and accounting services. General and administrative expense also consists of 
the costs of maintaining our intellectual property portfolio. 

68 

 
 
 
 
 
 
 
Other Income and Expense 

Investment and other income typically consists of interest earned on cash, cash equivalents and available-for-sale 

securities, net of interest expense, amortization of warrants and other revenue and loss. During the year ended December 31, 
2016, we recognized net $0.9 million in other income primarily related to the sale of assets. Interest expense is currently related 
to the 784 Memorial Drive lease (see Note 11 of our consolidated financial statements). 

Critical Accounting Policies and Significant Judgments and Estimates 

The following discussion and analysis of our financial condition and results of operations is based on our consolidated 

financial statements, which have been prepared in accordance with accounting principles generally accepted in the United 
States. The preparation of these financial statements requires us to make judgments, estimates and assumptions that affect the 
amounts reported in the financial statements and accompanying notes. On an ongoing basis, we evaluate our estimates, 
including those related to revenue recognition, accrued expenses and assumptions in the valuation of stock-based 
compensation. We base our estimates on historical experience and on various other assumptions that we believe to be 
reasonable under the circumstances. Actual results could differ from those estimates. Differences between actual and estimated 
results have not been material and have been adjusted in the period they become known. We believe that the following 
accounting policies and estimates are most critical to understanding and evaluating our reported financial results. Please refer to 
Note 2 to our consolidated financial statements included in this report for a description of our significant accounting policies. 

Revenue Recognition 

To date, all of our revenue has been generated under research collaboration agreements, and all our revenue during 

2016 and 2015 was derived from our strategic alliance with AbbVie Inc., or AbbVie. The terms of these research collaboration 
agreements may include payment to us of non-refundable, upfront license fees, funding or reimbursement of research and 
development efforts, milestone payments if specified objectives are achieved, and/or royalties on product sales. We evaluate all 
deliverables within an arrangement to determine whether or not they provide value on a stand-alone basis. Based on this 
evaluation, the deliverables are separated into units of accounting. For each unit of accounting identified within an 
arrangement, we determine the period over which the performance obligation occurs. Revenue is then recognized using the 
proportional performance method. The proportional performance method is used when the level of effort to complete the 
performance obligations under an arrangement can be reasonably estimated. We recognize revenue based upon our best 
estimate of the selling price for each element when there is no other means to determine the fair value of that item and allocate 
the consideration based on the relative values. The process for determining the best estimate of the selling price involves 
significant judgment and estimates. 

At the inception of each agreement that includes milestone payments, we evaluate whether each milestone is 
substantive on the basis of the contingent nature of the milestone. This evaluation includes an assessment of whether: 

•  

•  
•  

the consideration is commensurate with either (1) our performance to achieve the milestone, or (2) the 
enhancement of the value of the delivered item(s) as a result of a specific outcome resulting from our performance 
to achieve the milestone, 
the consideration relates solely to past performance, and 
the consideration is reasonable relative to all of the deliverables and payment terms within the arrangement. 

In making this assessment, we evaluate factors such as the clinical, regulatory, commercial and other risks that must be 

overcome to achieve the respective milestone, the level of effort and investment required, and whether the milestone 
consideration is reasonable relative to all deliverables and payment terms in the arrangement. We recognize revenues related to 
substantive milestones in full in the period in which the substantive milestone is achieved. If a milestone payment is not 
considered substantive, we recognize the amount associated with the applicable milestone based on the period over which the 
performance obligation occurs for each deliverable in the arrangement. 

69 

 
 
 
 
 
 
 
 
 
We will recognize royalty revenue, if any, based upon actual and estimated net sales by the licensee of licensed 

products in licensed territories, in the period the sales occur. We have not recognized any royalty revenue to date. 

In the event of an early termination of a collaboration agreement, any deferred revenue is recognized in the period in 

which all our obligations under the agreement have been fulfilled. 

Accrued Expenses 

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

involves identifying services that have been performed on our behalf and estimating the level of service performed and the 
associated cost incurred for such service as of each balance sheet date. Examples of services for which we must estimate 
accrued expenses include contract service fees paid to contract manufacturers in conjunction with pharmaceutical development 
work and to contract research organizations in connection with clinical trials and preclinical studies. In connection with these 
service fees, our estimates are most affected by our understanding of the status and timing of services provided. The majority of 
our service providers invoice us in arrears for services performed. In the event that we do not identify certain costs that have 
been incurred by our service providers, or if we under- or over-estimate the level of services performed or the costs of such 
services in any given period, our reported expenses for such period would be too low or too high, respectively. We often rely on 
subjective judgments to determine the date on which certain services commence, the level of services performed on or before a 
given date and the cost of such services. We make these judgments based upon the facts and circumstances known to us. Our 
estimates of expenses in future periods may be under- or over-accrued. 

Stock-Based Compensation 

We expense the fair value of employee stock options and other equity compensation. We use our judgment in 
determining the fair value of our equity instruments, including in selecting the inputs we use for the Black-Scholes valuation 
model. Equity instrument valuation models are by their nature highly subjective. Any significant changes in any of our 
judgments, including those used to select the inputs for the Black-Scholes valuation model, could have a significant impact on 
the fair value of the equity instruments granted and the associated compensation charge we record in our financial statements. 

Results of Operations 

The following table summarizes our results of operations for the years ended December 31, 2016, 2015 and 2014, in thousands, 
together with the change in each item as a percentage. 

Collaboration revenue 
Research and development expense: 

Programs 
Takeda payments 

Total research and development expense 

General and administrative expense 
Gain on AbbVie Opt-Out (note 12) 
Interest expense 
Investment and other income 
Income taxes 

Revenue 

2016 

  % Change 

 $ 

18,723   

(83 )%   $ 

2015 
109,066    

  % Change 

(34 )%   $ 

2014 
164,995  

(119,611)  
—   
(119,611)  
(42,219)  
112,216   
(1,225)  
2,015   
—   

(18 )%  
(100 )%  

(40 )%  
14  %  
—  %  
(10 )%  
363  %  
(100 )%  

(146,609 )  
(52,500 )  

(199,109 )  
(37,065 )  
—    
(1,368 )  
435    
(335 )  

14  %  
250  %  

39  %  
27  %  
—  %  
(86 )%  
28  %  
83  %  

(128,633 ) 
(15,000 ) 

(143,633 ) 
(29,285 ) 
—  
(9,649 ) 
339  
(183 ) 

Our revenue during the year ended December 31, 2016 consisted of approximately: 
•   $18.7 million of revenue related to development and committee services we performed under our collaboration 

agreement with AbbVie. 

70 

 
 
 
 
 
 
 
 
 
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
Our revenue during the year ended December 31, 2015 consisted of approximately: 
•   $75.2 million related to license revenue recognized as part of the $130 million enrollment milestone payment 

received from our collaboration agreement with AbbVie; and 

•   $33.9 million of revenue related to development and committee services we performed under our collaboration 

agreement with AbbVie. 

Our revenue during the year ended December 31, 2014 consisted of approximately: 
•   $159.1 million related to license revenue recognized as part of the $275 million upfront payment received from 

our collaboration agreement with AbbVie; and 

•   $5.9 million of revenue related to development and committee services we performed under our collaboration 

agreement with AbbVie. 

We recognized license revenue upon execution of the arrangement. Revenue related to development services and 

committee services was recognized using the proportionate performance method as services were provided over the estimated 
service period of approximately five years. We recorded the remaining amount related to development and committee services 
of $35.4 million and $95.5 million as short-term and long-term deferred revenue, respectively, as of December 31, 2015. 
Following the notification of the termination of the AbbVie Agreement, the remaining deferred revenue of $112.2 million as of 
June 24, 2016 was recorded as the gain on AbbVie Opt-Out. See Note 12 of our consolidated financial statements for details on 
the AbbVie Agreement and the AbbVie Opt-Out. 

Gain on AbbVie Opt-Out 

The gain on AbbVie Opt-Out was non-recurring and due to the written notice of termination received from AbbVie on 

June 24, 2016. The AbbVie Opt-Out was irrevocable, and we had no obligation to continue to provide AbbVie any services 
related to Duvelisib Products after June 24, 2016.  The termination of the AbbVie Agreement became effective on September 
23, 2016. 

Research and Development Expense 

Research and development expenses represented approximately 74% of our total operating expenses for the year 

ended December 31, 2016, 84% of our total operating expenses for the year ended December 31, 2015, and 83% of our total 
operating expenses for the year ended December 31, 2014. 

The decrease in research and development expense for the year ended December 31, 2016 compared to the year ended 

December 31, 2015 was primarily attributable to: 

•   $52.5 million payment in 2015 to exercise the option purchased from Takeda Pharmaceutical Company Limited, 
or Takeda, in connection with the 2014 amendment of our development and license agreement with Takeda;  
•   $22.0 million decrease in clinical development expenses related to duvelisib, an oral, dual inhibitor of the delta 

and gamma isoforms of PI3K, including charges from AbbVie for costs incurred by AbbVie for other than the 
AbbVie Studies and for our share of the AbbVie Studies; and 

•   $13.2 million decrease in compensation due to the decrease in headcount resulting from restructuring activities in 

2016. 

These decreases were partially offset by $13.6 million of expense related to restructuring activities. See Note 13 of the 

consolidated financial statements for additional information on the restructurings. 

The increase in research and development expense for the year ended December 31, 2015 compared to the year ended 

December 31, 2014 was primarily attributable to: 

•   $52.5 million payment to exercise the option purchased from Takeda in connection with the 2014 amendment of 

our development and license agreement with Takeda; 

71 

 
 
 
 
 
 
 
 
 
 
 
•   $10.0 million increase in clinical development expenses related to duvelisib, including charges from AbbVie for 

costs incurred by AbbVie for other than the AbbVie Studies and for our share of the AbbVie Studies; and 

•   $4.8 million increase in compensation expense primarily due to hiring of additional personnel. 

We began to track and accumulate costs by major program starting on January 1, 2006. These expenses primarily 

relate to payroll and related expenses for personnel working on the programs, process development and manufacturing, 
preclinical toxicology studies, clinical trial costs and allocated costs of facilities. During the year ended December 31, 2016, 
2015 and 2014, and from January 1, 2006 through December 31, 2016, we estimate that we incurred the following expenses by 
program: 

Program 

Year Ended 
December 31, 2016 

Year Ended 
December 31, 2015 

Year Ended 
December 31, 2014 

January 1, 2006 to 
December 31, 2016 

PI3K Inhibitor(1) 
Hsp90 inhibitor 
Hedgehog pathway inhibitor 

 $ 

116.6     $ 
—    
—    

(in millions) 

189.6     $ 
0.1    
—    

120.8    $ 
1.6    
0.1    

589.0  
137.8  
164.1  

(1) 
Includes both duvelisib and IPI-549. Includes an upfront license fee of $13.5 million in 2010, $4 million in 
development milestones in 2011, $14.4 million recorded as fair value for the release payment for the amended and restated 
Takeda agreement and $6 million in development milestones in 2012, $10 million development milestone payment and a $5 
million option fee payment in 2014, as well as a $52.5 million payment related to the exercise of an option to Takeda in 2015. 

We expect expenses related to our PI3K program to decrease as a result of our Verastem Agreement related to 

duvelisib. See Note 12 of our consolidated financial statements for details on the Verastem Agreement. Upon entry into the 
Verastem Agreement, Verastem assumed financial responsibility for activities that were part of our ongoing duvelisib program. 
We have financial responsibility for the shutdown of certain specified clinical studies up to a maximum of $4.5 million. We will 
continue clinical development of IPI-549. We do not believe that the historical costs associated with our lead drug development 
programs are indicative of the future costs associated with these programs, nor represent what any other future drug 
development programs we initiate may cost. Due to the variability in the length of time and scope of activities necessary to 
develop a product candidate and uncertainties related to our cost estimates and our ability to obtain marketing approval for our 
product candidates, accurate and meaningful estimates of the total costs required to bring our product candidates to market are 
not available. 

Because of the risks inherent in drug development, we cannot reasonably estimate or know: 
•  
•  
•  

the nature, timing and estimated costs of the efforts necessary to complete the development of our programs; 
the completion dates of these programs; or 
the period in which material net cash inflows are expected to commence, if at all, from the programs described 
above and any potential future product candidates. 

There is significant uncertainty regarding our ability to successfully develop any product candidates. These risks 

include the uncertainty of: 

•  

•  
•  
•  
•  
•  

•  

•  

the scope, rate of progress and cost of our clinical trials that we are currently running or may commence in the 
future; 
the scope and rate of progress of our preclinical studies and other research and development activities; 
clinical trial results; 
the cost of establishing clinical supplies of any product candidates; 
the cost and availability of comparator drugs; 
the cost of filing, prosecuting, defending and enforcing any patent claims and other intellectual property rights 
relating to our programs under development; 
the terms and timing of any strategic alliance, licensing and other arrangements that we have or may establish in 
the future relating to our programs under development; 
the cost and timing of regulatory approvals; and 

72 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
•  

the effect of competing technological and market developments. 

General and Administrative Expense 

The increase in general and administrative expense for the year ended December 31, 2016 as compared to the year 

ended December 31, 2015 was primarily attributable to an increase of $7.6 million due to restructuring related costs, partially 
offset by a decrease in organizational support of $0.8 million due to the reduction in employee headcount during the year. See 
Note 13 of the consolidated financial statements for additional information on the restructurings. 

The increase in general and administrative expense for the year ended December 31, 2015 as compared to the year 

ended December 31, 2014 was primarily attributable to an increase of $3.8 million in compensation expense, primarily due to 
hiring of additional personnel as well as an increase of $1.7 million in consulting expense and $1.1 million in market research 
expense. 

Interest Expense 

Interest expense for the year ended December 31, 2016 is due to the financing obligation related to our 784 Memorial 

Drive lease. 

Interest expense for the year ended December 31, 2015 is due to the financing obligation related to our 784 Memorial 

Drive lease and the amortization of the loan commitment asset recognized under our facility agreement with affiliates of 
Deerfield Management Company, L.P., or Deerfield, which terminated in February 2015. 

Investment and Other Income 

Investment and other income increased in the year ended December 31, 2016 as compared to the year ended 
December 31, 2015 primarily as a result of a net gain on the sale of fixed assets of $0.9 million and due to additional income 
from subleases at 784 Memorial Drive. 

Investment and other income increased in the year ended December 31, 2015 as compared to the year ended 

December 31, 2014 primarily as a result of income from subleases at 784 Memorial Drive. 

Income Taxes 

We did not incur any income tax expense during the year ended December 31, 2016. 

Our income tax expense increased for the year ended December 31, 2015 as compared to the year ended December 31, 

2014 due to the alternative minimum tax effect of the upfront payment and the milestone payment received in connection with 
the collaboration agreement with AbbVie that we entered into on September 2, 2014. 

Liquidity and Capital Resources 

We have not generated any revenue from product sales to date, and we do not expect to generate any such revenue for 

the foreseeable future, if at all. We have instead relied on the proceeds from sales of equity securities, debt, interest on 
investments, up-front license fees, expense reimbursement, and milestones and cost sharing under our collaborations to fund 
our operations. Our available-for-sale debt securities primarily trade in liquid markets, and the average days to maturity of our 
portfolio, as of December 31, 2016, is less than six months. Because our product candidate is in an early stage of clinical 
development and the outcome of our effort is uncertain, we cannot estimate the actual amounts necessary to successfully 
complete the development and commercialization of our product candidate or whether, or when, we may achieve profitability. 

Our significant capital resources are as follows: 

73 

 
 
 
 
 
 
 
 
 
 
 
 
 
Cash, cash equivalents and available-for-sale securities 
Working capital 

Cash (used in) provided by: 
Operating activities 

Takeda payments (included in operating activities above) 

Investing activities 

Capital expenditures (included in investing activities above) 

Financing activities 

Cash Flows 

  December 31, 2016 

  December 31, 2015 

 $ 

(in thousands) 

92,064    $ 
77,797   

245,231 
184,641 

Year Ended December 31, 

2016 

2015 
(in thousands) 

2014 

 $ 

(154,356)   $ 

—    
40,329    
(661 )  
(83 )  

(83,653)   $ 
(59,167)  
(37,903)  
(6,426)  
2,321   

117,715 
(21,667) 
117,853 
(1,362) 
3,723 

The principal use of cash in operating activities in all periods presented was related to our research and development 

programs. Our cash flow used in operating activities for the year ended December 31, 2016 compared to the year ended 
December 31, 2015 increased primarily due to increased operating expenses, including restructuring activities, as well as the 
absence of additional collaborative funding received in 2016.  AbbVie paid us a $275 million upfront payment during the year 
ended December 31, 2014, and a $130 million milestone payment in November 2015 associated with the completion of 
enrollment in our clinical trial DYNAMOTM in September 2015. 

Our cash flow used in operating activities for the year ended December 31, 2015 compared to the year ended 
December 31, 2014, increased primarily due to increased operating expenses, including a $52.5 million payment in March 2015 
to Takeda associated with the exercise of an option that we purchased in July 2014 to eliminate our obligation to pay Takeda a 
tiered 7% to 11% royalty with respect to worldwide net sales in oncology indications of products containing or comprised of 
duvelisib and $6.7 million related to the final installment on a release payment. During the year ended December 31, 2014, we 
paid Takeda a $10 million milestone payment for the initiation of the first Phase 3 study for duvelisib, a $6.7 million release 
payment and a $5 million option payment. 

 Our cash flow used in operating activities in future periods may vary significantly due to various factors, including 

potential cash inflows from future collaboration agreements and potential cash outflows for licensing new programs from third 
parties. We cannot be certain whether and when we may enter into any such collaboration agreements or in-licenses. 

Our investing activities for the years ended December 31, 2016, 2015 and 2014 included purchases and proceeds from 

maturities and sales of available-for-sale securities and purchases and proceeds from sales of property and equipment. Our 
investing activities for the year ended December 31, 2016 included $66.5 million in purchases of available-for-sale securities, 
proceeds of $93.4 million from maturities of available-for-sale securities and proceeds of $12.0 million from the sale of 
available-for-sale securities. We also received proceeds of $2.1 million related to the sale of property and equipment in 2016.  

Net cash from financing activities for the year ended December 31, 2016 included $0.3 million of proceeds from 

issuances of common stock from stock option exercises related to stock incentive plans and $18,000 of proceeds from issuances 
of common stock related to our employee stock purchase plan, which were partially offset by $0.4 million of payments on the 
financing obligation related to our 784 Memorial Drive lease. 

Net cash from financing activities for the year ended December 31, 2015 included $1.9 million of proceeds from 
issuances of common stock from stock option exercises related to stock incentive plans and $1.0 million of proceeds from 

74 

 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
issuances of common stock related to our employee stock purchase plan, which were partially offset by $0.5 million of 
payments on the construction liability and financing obligation related to our 784 Memorial Drive lease. 

Net cash from financing activities for the year ended December 31, 2014 included $3.9 million of proceeds from 

issuances of common stock from stock option exercises related to stock incentive plans, $1.0 million related to restricted cash 
held on deposit with a bank to collateralize a letter of credit in the name of our facility lessor in accordance with our facility 
lease agreement, $0.8 million of proceeds from issuances of common stock related to our employee stock purchase plan, $0.5 
million related to a decrease in restricted cash held on deposit with a bank to collateralize a letter of credit in the name of our 
facility lessor in accordance with our amended facility lease agreement and $0.4 million of transaction costs related to the 
facility agreement with Deerfield. 

We will need substantial additional funds to support our planned operations. In the absence of additional funding or 
business development activities, we believe that our existing cash, cash equivalents and available-for-sale securities will be 
adequate to satisfy our capital needs into the first quarter of 2019. We have not included any of the $28 million of potential 
future Verastem milestone payments in this forecast. We do not expect to generate significant revenue from product sales unless 
and until we obtain regulatory approval of and commercialize one of our current or future product candidates. Until we can 
generate sufficient levels of cash from operations, and because sufficient funds may not be available to us when needed from 
collaborations, we expect that we will be required to continue to fund our operations in part through the sale of debt or equity 
securities or through licensing select programs or partial economic rights that include up-front, royalty and/or milestone 
payments. Our need to raise additional funds may be accelerated if our research and development expenses exceed our current 
expectations, if we acquire a third party, or if we acquire or license rights to additional product candidates or new technologies 
from one or more third parties. Our need to raise additional funds may also be accelerated for other reasons, including, without 
limitation, if: 

•   our product candidates require more extensive clinical or preclinical testing than we currently expect; 
•   we advance our product candidates into clinical trials for more indications than we currently expect; 
•   we advance more of our product candidates than expected into costly later stage clinical trials; 
•   we advance more preclinical product candidates than expected into early stage clinical trials; 
•   we acquire additional business, technologies, products or product candidates; 
•  
•  
•   we are required, or consider it advisable, to acquire or license intellectual property rights from one or more third 

the cost of acquiring raw materials for, and of manufacturing, our product candidates is higher than anticipated; 
the cost or quantity required of comparator drugs used in clinical studies increases; 

parties; or 

•   we experience a loss in our investments due to general market conditions or other reasons. 

Historically, we have relied on our strategic alliances for a significant portion of our research and development 
funding needs. Mundipharma and Purdue provided us approximately $260 million in research and development funding during 
the term of our strategic alliance. AbbVie provided us approximately $405 million in research and development funding 
through the termination of our strategic alliance in September 2016. 

We have received $244.8 million of net proceeds from our public stock offerings. We may continue to seek additional 

funding through public or private financings of equity and/or debt securities, but such financings may not be available on 
acceptable terms, if at all. In addition, the terms of our financings may be dilutive to, or otherwise adversely affect, holders of 
our common stock, and such terms may impact our ability to make capital expenditures or incur additional debt. 

We may also seek additional funds through arrangements with collaborators or other third parties, or through project 

financing. These arrangements would generally require us to relinquish or encumber rights to some of our technologies or 
product candidates, and we may not be able to enter into such agreements on acceptable terms, if at all. If we are unable to 
obtain additional funding on a timely basis, we may be required to curtail or terminate some or all of our development 
programs or to scale back, suspend or terminate our business operations. 

75 

 
 
 
 
 
 
 
 
 
Organizational Restructuring 

In June 2016, we reported the top line data from DYNAMO, a registration-focused Phase 2 monotherapy study 
evaluating the efficacy and safety of duvelisib in patients with refractory indolent non-Hodgkin lymphoma, or iNHL. The study 
met its primary endpoint with an overall response rate of 46%, all of which were partial responses, among 129 patients with 
iNHL. On June 24, 2016, AbbVie delivered to us a written notice of the AbbVie Opt-Out.   

June 2016 Restructurings 

As a result of our discussions with AbbVie regarding our collaboration and the subsequent AbbVie Opt-Out, our Board 

of Directors approved a strategic restructuring in order to preserve our resources as we determine future strategic plans, which 
included significant employee headcount reductions during June 2016. We recognized $8.3 million and $4.5 million in total 
restructuring charges for the year ended December 31, 2016 in research and development expenses and general and 
administrative expenses, respectively.  

We continue to evaluate the lease for the facility that we currently occupy. See Note 11 to our consolidated financial 
statements for information regarding our facility lease termination at 780/790 Memorial Drive. If we pursue and successfully 
restructure the 784 Memorial Drive facility lease in 2017, we could potentially incur additional charges upon our exit from the 
space. Such potential future charges could include further impairments and lease exit payments related to our office space at 
784 Memorial Drive in Cambridge, Massachusetts. At December 31, 2016, the accompanying consolidated balance sheets 
reflect the 784 Memorial Drive building and accumulated construction costs net of accumulated depreciation of $22.0 million 
and a total financing obligation of approximately $19.6 million. 

In June 2016, we reduced our employee headcount by approximately 66% compared to our employee headcount as of 

December 31, 2015. We have existing severance plans which outline contractual termination benefits. We recognized all 
contractual severance and benefits outlined in the plan when termination was probable and reasonably estimable in accordance 
with FASB ASC Topic 712, Compensation - Nonretirement Postemployment Benefits. 

Approximately $1.9 million of expense was recorded during the year ended December 31, 2016 related to the write-
off of prepaid expenses that were not expected to continue and other payments that were due as a result of early terminations. 

We identified and recorded the impairment of approximately $0.4 million in furniture and fixtures during the year 

ended December 31, 2016.  

In performing the recoverability test for the 780/790 Memorial Drive asset group, we concluded that the asset group 
was not recoverable. We recorded an impairment charge of $0.8 million related to 780/790 Memorial Drive assets, including 
the related tenant improvement allowance (see Note 11), after comparing the fair value (using probability weighted scenarios 
with discounted cash flows) to the asset group’s carrying value, for the year ended December 31, 2016.  

In performing the recoverability test for the 784 Memorial Drive asset group, we concluded that the asset group was 
not recoverable. We had an independent appraisal performed for the 784 Memorial building and improvements. We concluded 
no impairment was needed as the fair market value (considering the cost approach, sales comparison approach and the income 
approach) exceeded the asset group’s carrying value. 

September 2016 Restructuring 

As a result of our progress on strategic initiatives with duvelisib, our Board of Directors approved further headcount 
reductions during September 2016.  The September 2016 restructuring reduced our employee headcount by approximately 4% 
compared to our employee headcount as of December 31, 2015. Included in the table below, we recognized $0.3 million and 
$0.2 million in total restructuring charges for the year ended December 31, 2016 in research and development expenses and 
general and administrative expenses, respectively, related to the September restructuring. 

76 

 
 
 
 
October 2016 Restructuring 

  On October 28, 2016, our Board of Directors approved a strategic restructuring in connection with and subject to the 

entry into the Verastem Agreement. The restructuring included workforce reductions of 19 positions across the organization 
representing approximately 9% compared to our employee headcount as of December 31, 2015. Included in the table below, we 
recognized $2.6 million and $2.0 million in total restructuring charges for the year ended December 31, 2016 in research and 
development expenses and general and administrative expenses, respectively, related to the October restructuring. 

Summary Table 

The following table summarizes the impact of the June 2016, September 2016 and October 2016 restructuring 
activities on our operating expenses and payments for the year ended December 31, 2016 and the current liability remaining on 
our balance sheet as of December 31, 2016, in thousands:    

Charges incurred 
during the year 
ended December 
31, 2016 

Amounts paid 
through December 
31, 2016 

Less non-cash 
charges during the 
year ended 
December 31, 
2016

Amounts accrued 
at December 31, 
2016 

(in thousands) 

Employee severance, benefits and 
related costs for work force 
reduction 
Long-lived asset impairment 

$ 

  $ 

17,960 
1,324    

9,516 

  $ 

—    

  $ 

1,552 
1,324    

Contract termination, prepaid 
expense write-offs and other 
related costs 
Total restructuring 

1,891 
21,175    $ 

821 
10,337    $ 

$ 

1,042 
3,918    $ 

6,892 
—  

28 
6,920  

During the year ended December 31, 2016, we recorded $21.2 million of expense related to restructuring activities of 

which $13.6 million is recorded in research and development expense and $7.6 million is recorded in general and 
administrative expense. We are obligated to continue to pay the remaining amounts accrued through the third quarter of 2017. 

At-the-Market Facility 

In May 2016, we entered into an at-the-market sales agreement, or Sales Agreement, with Cantor Fitzgerald & Co., or 

Cantor Fitzgerald, as agent, pursuant to which we may from time to time, at our option, offer and sell shares of our common 
stock having an aggregate offering price of up to $50 million through Cantor Fitzgerald, acting as our sales agent. Cantor 
Fitzgerald will be entitled to a commission of 3.0% of the aggregate gross proceeds from sales of shares of our common stock 
under the Sales Agreement. Sales of shares of our common stock under the Sales Agreement may be made by any method 
permitted by law that is deemed an “at the market” offering as defined in Rule 415 under the Securities Act of 1933, as 
amended, including sales made through the Nasdaq Global Select Market, on any other existing trading market for our common 
stock or to or through a market maker. We may also authorize Cantor Fitzgerald to sell shares in privately negotiated 
transactions. As of December 31, 2016, we had not used the at-the-market facility.  We have no obligation to sell shares of our 
common stock and cannot provide any assurances that we will issue any shares pursuant to the Sales Agreement. We may also 
suspend the offering of shares of our common stock upon notice and subject to other conditions. 

Contractual Obligations 

As of December 31, 2016, we had the following contractual obligations, excluding contingent milestone payments: 

77 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contractual Obligations 

784 facility 

Total contractual cash 
obligations 

Payments Due by Period 

(in thousands) 

2017 

2018 

2019 

2020 

2021 

2,044     $ 

2,044     $ 

2,044    $ 

2,227    $ 

2,287     $ 

2022 
and beyond 
7,433  

Total 
18,079     $ 

 $ 

$ 

18,079 

  $ 

2,044 

  $ 

2,044 

  $ 

2,044

  $ 

2,227

  $ 

2,287 

  $ 

7,433 

The above table does not include contracts with contract research organizations as they are generally cancellable, with 

notice, at our option. In addition, we have obligations to make milestone payments under our license agreement with Takeda. 
For a description of these obligations, please see our description of our license agreement with Takeda under the heading 
“Strategic Alliances—Takeda” in Part I, Item 1 of this report. We are obligated to pay to Takeda up to $5 million in remaining 
success-based milestones for the development of a product candidate, and up to $165 million in success-based milestones for 
the approval and commercialization of one distinct product. Because the achievement of these milestones had not occurred as 
of December 31, 2016, such contingencies have not been recorded in our financial statements. 

During the year ended December 31, 2014, we entered into a lease agreement for the lease of office space at 784 

Memorial Drive, Cambridge, Massachusetts. Upon lease commencement, building construction was initiated. We were 
involved in the construction project and were deemed for accounting purposes to be the owner of the building during the 
construction period. The construction was substantially complete, and the Leased Premises was available for occupancy in June 
2015. The construction-in-progress was then placed in service, and the asset was transferred to building and building 
improvements. At December 31, 2016 and 2015, the accompanying consolidated balance sheet reflects the building and 
accumulated construction costs net of accumulated depreciation of approximately $22.0 million and $23.0 million, respectively, 
and a financing obligation of approximately $19.6 million and $20.0 million at December 31, 2016 and 2015, respectively (see 
Note 11 of the financial statements).  

Amounts related to contingent milestone payments are not considered contractual obligations as they are contingent on 

the successful achievement of certain development, regulatory approval and commercial milestones, which may not be 
achieved. 

Off-Balance Sheet Arrangements 

Since inception, we have not engaged in any off-balance sheet financing activities, including the use of structured 

finance, special purpose entities or variable interest entities. 

Inflation 

We do not believe that inflation has had a significant impact on our revenues or results of operations since inception. 

New Accounting Pronouncements 

See Note 2 to our consolidated financial statements included in Part II, Item 8, “Financial Statements and 
Supplementary Data,” of this Annual Report on Form 10-K for a description of recent accounting pronouncements applicable 
to our business. 

Item 7A. Quantitative and Qualitative Disclosures about Market Risk 

Our interest income is sensitive to changes in the general level of U.S. interest rates, particularly since a significant 
portion of our investments are in money market funds, corporate obligations, and U.S. government-sponsored enterprise 
obligations. We do not enter into investments for trading or speculative purposes. Our cash is deposited in and invested through 
highly rated financial institutions in North America. Our marketable securities are subject to interest rate risk and will fall in 
value if market interest rates increase. 

78 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
A hypothetical 100 basis point increase in interest rates would result in an approximately $25,000 decrease in the fair 
value of our investments as of December 31, 2016, as compared to an approximately $0.4 million decrease as of December 31, 
2015. We have the ability to hold our fixed income investments until maturity and, therefore, we do not expect our operating 
results or cash flows to be affected to any significant degree by the effect of a change in market interest rates on our 
investments. 

79 

 
 
 
 
Item 8. Financial Statements and Supplementary Data 

Report of Independent Registered Public Accounting Firm 

The Board of Directors and Stockholders of 
Infinity Pharmaceuticals, Inc. 

We have audited the accompanying consolidated balance sheets of Infinity Pharmaceuticals, Inc. as of December 31, 

2016 and 2015, and the related consolidated statements of operations and comprehensive loss, stockholders’ equity and cash 
flows for each of the three years in the period ended December 31, 2016. These financial statements are the responsibility of 
the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audits. 

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board 

(United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the 
financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the 
amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and 
significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that 
our audits provide a reasonable basis for our opinion. 

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated 

financial position of Infinity Pharmaceuticals, Inc. at December 31, 2016 and 2015, and the consolidated results of its 
operations and its cash flows for each of the three years in the period ended December 31, 2016, in conformity with U.S. 
generally accepted accounting principles. 

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United 

States), Infinity Pharmaceuticals, Inc.’s internal control over financial reporting as of December 31, 2016, based on criteria 
established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway 
Commission (2013 framework) and our report dated March 14, 2017 expressed an unqualified opinion thereon. 

/s/ ERNST & YOUNG LLP 

Boston, Massachusetts 
March 14, 2017 

80 

 
 
 
 
 
INFINITY PHARMACEUTICALS, INC. 
Consolidated Balance Sheets 
(in thousands, except share and per share amounts) 

Assets 
Current assets: 

Cash and cash equivalents 

Available-for-sale securities 

Restricted cash 

Prepaid expenses and other current assets 

Total current assets 
Property and equipment, net 

Restricted cash, less current portion 

Long-term receivable (note 11) 

Other assets 

Total assets 

Liabilities and stockholders’ equity 
Current liabilities: 

Accounts payable 

Accrued expenses 

Deferred revenue, current 

Financing obligation, current (note 11) 

Total current liabilities 
Deferred revenue, less current portion 

Deferred rent, less current portion (note 11) 

Financing obligation, less current portion (note 11) 

Other liabilities 

Total liabilities 
Commitments and contingencies (note 11) 

Stockholders’ equity: 

Preferred Stock, $0.001 par value; 1,000,000 shares authorized, no shares 
issued and outstanding at December 31, 2016 and 2015 
Common Stock, $0.001 par value; 100,000,000 shares authorized, 50,374,871 
and 49,305,136 shares issued and outstanding at December 31, 2016 and 
December 31, 2015, respectively 
Additional paid-in capital 

Accumulated deficit 

Accumulated other comprehensive income (loss) 

Total stockholders’ equity 

Total liabilities and stockholders’ equity 

December 31, 

2016 

2015 

74,060     $ 
18,004    
1,152    
8,444    
101,660    
23,424    
530    
—    
41    

125,655     $ 

2,413     $ 
21,008    
—    
442    
23,863    
—    
183    
19,149    
6    
43,201    

188,170  
57,061  
—  
9,466  
254,697  
28,240  
1,681  
1,821  
2,382  
288,821  

9,628  
24,604  
35,408  
416  
70,056  
95,531  
4,632  
19,591  
454  
190,264  

— 

— 

50 
708,096    
(625,689 )  

(3 )  
82,454    
125,655     $ 

49 
694,051  
(595,588 ) 
45  
98,557  
288,821  

$ 

$ 

$ 

$ 

The accompanying notes are an integral part of these consolidated financial statements. 

81 

 
 
 
 
 
   
 
   
 
   
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
INFINITY PHARMACEUTICALS, INC. 
Consolidated Statements of Operations and Comprehensive Loss 
(in thousands, except share and per share amounts) 

Collaboration revenue 
Operating expenses: 

Research and development 

General and administrative 

Total operating expenses 
Gain on AbbVie Opt-Out (note 12) 

Loss from operations 
Other income (expense): 

Interest expense 

Investment and other income 

Total other income (expense) 

Loss before income taxes 
Income taxes 

Net loss 

Basic and diluted loss per common share 

Basic and diluted weighted average number of common shares 
outstanding 
Other comprehensive loss: 
Net unrealized holding losses on available-for-sale securities arising 
during the period 
Comprehensive loss 

Years Ended December 31, 

2016 

$ 

18,723    $ 

2015 
109,066    $ 

2014 
164,995 

119,611   
42,219   
161,830   
112,216   

(30,891)  

(1,225)  
2,015   
790   
(30,101)  
—   
(30,101)   $ 

(0.61)   $ 

199,109   
37,065   
236,174   
—   

143,633 
29,285 
172,918 
— 

(127,108)  

(7,923) 

(1,368)  
435   

(933)  

(128,041)  
(335)  

(128,376)   $ 

(2.62)   $ 

(9,649) 
339 

(9,310) 

(17,233) 
(183) 

(17,416) 

(0.36) 

49,608,234

49,083,479

48,561,653

(48)   $ 

(69)   $ 

(42) 

(30,149)   $ 

(128,445)   $ 

(17,458) 

$ 

$ 

$ 

$ 

The accompanying notes are an integral part of these consolidated financial statements. 

82 

 
 
 
 
 
 
 
   
   
 
   
   
 
 
 
 
 
 
   
   
 
 
 
INFINITY PHARMACEUTICALS, INC. 
Consolidated Statements of Cash Flows 
(in thousands) 

Operating activities 
Net loss 

Adjustments to reconcile net loss to net cash provided by (used in) operating 
activities:

Non-cash gain on AbbVie Opt-Out (note 12) 
Depreciation 
Stock-based compensation, including 401(k) match 
Impairment of property and equipment 
Gain on sale of fixed assets 
Non-cash interest expense on amount Due to Takeda 
Amortization of loan commitment asset 
Net amortization of premium/discount on available-for-sale securities 
Other, net 
Changes in operating assets and liabilities: 

Prepaid expenses and other assets 
Accounts payable, accrued expenses and other liabilities 
Due to Takeda 
Deferred revenue 
Deferred rent 

Net cash provided by (used in) operating activities 
Investing activities 
Purchases of property and equipment 
Proceeds from sale of assets 
Purchases of available-for-sale securities 
Proceeds from maturities of available-for-sale securities 
Proceeds from sales of available-for-sale securities 
Net cash provided by (used in) investing activities
Financing activities 
Proceeds from issuances of common stock related to stock incentive plans, net 
Proceeds from issuances of common stock related to employee stock purchase plan 
Payments on construction liability 
Payments on financing obligation 
Restricted cash 
Deferred transaction costs 
Net cash provided by (used in) financing activities 
Net increase (decrease) in cash and cash equivalents 
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period 
Supplemental cash flow information
Cash paid for interest 
Cash paid for income taxes 
Supplemental schedule of noncash investing and financing activities 
Loan commitment asset 
Facility fee 
Warrants issued 
Construction liability 
Reclassification to financing obligation
Property and equipment in accrued expenses 
Increase in property and equipment for amount paid by landlord 

Years Ended December 31, 

2016 

2015 

2014 

$ 

(30,101 )   $ 

(128,376 )   $ 

(17,416 ) 

(112,216 )  
3,418  
13,714    
771  
(876 )  
—  
—    
159  
(2 )  

5,208    
(20,418 )  
—  
(18,723 )  
4,710    
(154,356 )  

(661 )  
2,140  
(66,503 )  
93,400    
11,953  
40,329  

—  
2,292  
14,700    
—  
—  
—  
647    
272  
(162 )  

933  
10,517  
(6,667 )  
20,934  
1,257  
(83,653 )  

(6,426 )  
—  
(121,456 )  
89,515    
464  
(37,903 )  

314    
18  
—  
(415 )  
—  
—  
(83 )  
(114,110 )  
188,170    
74,060     $ 

1,866    
964  
(273 )  
(236 )  
—  
—  
2,321  
(119,235 )  
307,405    
188,170     $ 

1,225     $ 
5     $ 

721     $ 
885     $ 

—     $ 
—     $ 
—     $ 
—     $ 
—     $ 
—     $ 
—     $ 

—     $ 
—     $ 
—     $ 
—     $ 
19,273     $ 
65     $ 
5,059     $ 

$ 

$ 
$ 

$ 
$ 
$ 
$ 
$ 
$ 
$ 

—  
1,773  
12,588  
—  
—  
211  
9,649  
1,257  
83  

(494 ) 
6,815  
(6,667 ) 
110,005  
(89 ) 
117,715  

(1,362 ) 
—  
(21,789 ) 
141,004  
—  
117,853  

3,881  
836  
—  
—  
(548 ) 
(446 ) 
3,723  
239,291  
68,114  
307,405  

—  
—  

9,850  
1,500  
8,350  
15,456  
—  
—  
797  

The accompanying notes are an integral part of these consolidated financial statements. 

83 

INFINITY PHARMACEUTICALS, INC. 
Consolidated Statements of Stockholders’ Equity 
(in thousands, except share amounts) 

Common Stock 

Shares 

Amount 

Additional 
Paid-in  
Capital 

Accumulated 
Deficit 

Accumulated 
Other  
Comprehensive  
Income (Loss) 

48    $  650,867     $  (449,796 )   $ 

156     $ 

48,227,838    $ 
523,954     

Total 
Stockholders’  
Equity 
201,275  
3,881  
8,350  
11,878  

710 

836 

(42 )  

(42 ) 

3,881     
8,350     
11,878     

710

835

Balance at December 31, 2013 

Exercise of stock options 
Valuation of initial warrants 

Stock-based compensation expense 

401(k) plan match issued in common 
stock 
Issuance of common stock related to 
employee stock purchase plan 
Unrealized loss on marketable 
securities 
Net loss 

Balance at December 31, 2014 

Exercise of stock options 
Stock-based compensation expense 

50,464

76,572

1

48,878,828    $ 
225,578     

401(k) plan match issued in common 
stock 
Issuance of common stock related to 
employee stock purchase plan 
Issuance of common stock for services 

68,235

124,358

8,137     

Unrealized loss on marketable 
securities 
Net loss 

Balance at December 31, 2015 

49,305,136    $ 

(17,416 )    
49    $  676,521     $  (467,212 )   $ 

114     $ 

1,796     
13,844     

856

964
70     

(17,416 ) 
209,472  
1,796  
13,844  

856 

964 
70  

(128,376 )    
49    $  694,051     $  (595,588 )   $ 

(69 )  

(69 ) 

(128,376 ) 
98,557  

45     $ 

The accompanying notes are an integral part of these consolidated financial statements. 

84 

 
 
 
 
 
 
 
 
 
 
   
 
 
   
 
   
 
 
   
 
   
 
 
   
 
 
   
   
 
 
 
 
 
 
 
   
   
 
 
 
   
   
   
 
 
   
   
 
 
 
   
 
 
   
 
   
 
 
   
 
 
   
   
 
 
 
   
 
 
   
   
 
 
 
   
 
 
   
   
   
 
 
   
   
 
 
 
 
 
INFINITY PHARMACEUTICALS, INC. 
Consolidated Statements of Stockholders’ Equity (Continued) 
(in thousands, except share amounts) 

Common Stock 

  Additional 

Shares 
  49,305,136    $ 
67,077     

Amount 

Paid-in 
Capital 

Accumulated 
Deficit 

49    $  694,051     $  (595,588 )   $ 
373     
11,937     

Accumulated 
Other 
Comprehensive 
Income (Loss)

Total 
Stockholders’ 
Equity 

45     $ 

Balance at December 31, 2015 

Exercise of stock options 
Stock-based compensation expense 

401(k) plan match issued in common 
stock 
Issuance of common stock related to 
employee stock purchase plan 
Vesting of restricted stock and other, 
net 
Unrealized loss on marketable 
securities 
Net loss 

295,596

15,860

691,202

619

18

1

1,098

Balance at December 31, 2016 

  50,374,871    $ 

(30,101 )    
50    $  708,096     $  (625,689 )   $ 

(48 )  

(3 )   $ 

(48 ) 

(30,101 ) 
82,454  

98,557  
373  
11,937  

619 

18 

1,099 

The accompanying notes are an integral part of these consolidated financial statements. 

85 

 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
   
 
   
 
 
 
   
 
 
   
   
 
 
 
 
   
 
 
   
   
 
 
 
 
 
 
 
 
   
   
 
 
 
 
   
   
   
 
   
   
   
 
 
 
 
1. Organization 

INFINITY PHARMACEUTICALS, INC. 
Notes to Consolidated Financial Statements 

Infinity Pharmaceuticals, Inc. is an innovative biopharmaceutical company dedicated to developing best-in-class 

medicines to patients with difficult-to-treat diseases. As used throughout these audited, consolidated financial statements, the 
terms “Infinity,” “we,” “us,” and “our” refer to the business of Infinity Pharmaceuticals, Inc. and its wholly-owned subsidiaries. 

2. Summary of Significant Accounting Policies 

Basis of Presentation 

These consolidated financial statements include the accounts of Infinity and its wholly-owned subsidiaries. We have 

eliminated all significant intercompany accounts and transactions in consolidation. 

The preparation of consolidated financial statements in accordance with generally accepted accounting principles 

requires our management to make estimates and judgments that may affect the reported amounts of assets, liabilities, revenues 
and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates and 
judgments. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable, 
the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results may 
differ from these estimates under different assumptions or conditions. 

Cash Equivalents and Available-For-Sale Securities 

Cash equivalents and available-for-sale securities primarily consist of money market funds, U.S. government-
sponsored enterprise obligations, corporate obligations and mortgage-backed securities. Corporate obligations include 
obligations issued by corporations in countries other than the United States, including some obligations that have not been 
guaranteed by governments and government agencies. We consider all highly liquid investments with maturities of three 
months or less at the time of purchase to be cash equivalents. Cash equivalents, which consist of money market funds, 
corporate obligations and U.S. government-sponsored enterprise obligations, are stated at fair value. They are also readily 
convertible to known amounts of cash and have such short-term maturities that each presents insignificant risk of change in 
value due to changes in interest rates. Our classification of cash equivalents is consistent with prior periods. 

We determine the appropriate classification of marketable securities at the time of purchase and reevaluate such 

designation at each balance sheet date. We have classified all of our marketable securities at December 31, 2016 and 2015 as 
“available-for-sale.” We carry available-for-sale securities at fair value, with the unrealized gains and losses reported in 
accumulated other comprehensive income (loss), which is a separate component of stockholders’ equity. 

We adjust the cost of available-for-sale debt securities for amortization of premiums and accretion of discounts to 

maturity. We include such amortization and accretion in investment and other income. The cost of securities sold is based on 
the specific identification method. We include in investment income interest and dividends on securities classified as available-
for-sale. 

We conduct periodic reviews to identify and evaluate each investment that is in an unrealized loss position in order to 

determine whether an other-than-temporary impairment exists. An unrealized loss exists when the current fair value of an 
individual security is less than its amortized cost basis. Unrealized losses on available-for-sale debt securities that are 
determined to be temporary, and not related to credit loss, are recorded, net of tax, in accumulated other comprehensive income 
(loss). 

86 

 
 
 
 
 
 
 
 
 
 
 
For available-for-sale debt securities in an unrealized loss position, we perform an analysis to assess whether we 
intend to sell or whether we would more likely than not be required to sell the security before the expected recovery of the 
amortized cost basis. Where we intend to sell a security, or may be required to do so, the security’s decline in fair value is 
deemed to be other-than-temporary, and the full amount of the unrealized loss is recorded within earnings as an impairment 
loss. 

Regardless of our intent to sell a security, we perform additional analysis on all securities in an unrealized loss position 

to evaluate losses associated with the creditworthiness of the security. Credit losses are identified where we do not expect to 
receive cash flows sufficient to recover the amortized cost basis of a security and are recorded within earnings as an impairment 
loss. 

We will need substantial additional funds to support our planned operations. In the absence of additional funding or 

business development activities, we believe that our existing cash, cash equivalents and available-for-sale securities at 
December 31, 2016 will be adequate to satisfy our capital needs based on planned levels of spending into the first quarter of 
2019. We have not included any of the future potential $28 million of Verastem Inc., or Verastem, milestone payments in this 
forecast (see Note 12). For more information, refer to the section titled “Liquidity and Capital Resources” in Item 7, 
Management’s Discussion and Analysis of Financial Condition and Results of Operations. 

Concentration of Risk 

Cash and cash equivalents are primarily maintained with two major financial institutions in the United States. Deposits 

at banks may exceed the insurance provided on such deposits. Generally, these deposits may be redeemed upon demand and, 
therefore, bear minimal risk. Financial instruments that potentially subject us to concentration of credit risk primarily consist of 
available-for-sale securities. Available-for-sale securities consist of U.S. government-sponsored enterprise obligations, 
investment grade corporate obligations and mortgage-backed securities. Our investment policy, which has been approved by 
our Board of Directors, limits the amount that we may invest in any one issuer of investments, thereby reducing credit risk 
concentrations. 

Segment Information 

We operate in one business segment, which focuses on drug development. We make operating decisions based upon 

performance of the enterprise as a whole and utilize our consolidated financial statements for decision making. 

All of our revenues to date have been generated under research collaboration agreements. Revenue associated with the 

amortization of the deferred revenue associated with the grant of licenses to, and research and development services provided 
to, AbbVie Inc., or AbbVie, accounted for all of our revenue during the years ended December 31, 2014, 2015 and 2016. 

Property and Equipment 

Property and equipment are stated at cost. Depreciation is recorded using the straight-line method over the estimated 
useful lives of the applicable assets. Assets included in construction-in-progress are not depreciated until placed into service. 
Application development costs incurred for computer software developed or obtained for internal use are capitalized. Upon sale 
or retirement, the cost and related accumulated depreciation are eliminated from the respective account, and the resulting gain 
or loss, if any, is included in current operations. Amortization of leasehold improvements, building improvements and capital 
leases is recorded as depreciation expense and included in research and development and general and administrative expense, 
as applicable. Repairs and maintenance charges that do not increase the useful life of the assets are charged to operations as 
incurred. Property and equipment are depreciated over the following periods: 

87 

 
 
 
 
 
 
 
 
 
 
Laboratory equipment 
Computer equipment and software 
Leasehold improvements 

Building and building improvements 

Furniture and fixtures 

Impairment of Long-Lived Assets 

5 years 
3 to 5 years 
  Shorter of lease term or useful life of asset 

10 to 50 years, less estimated residual 
value at the end of the financing  
obligation term 
7 to 10 years 

We evaluate our long-lived assets for potential impairment. Potential impairment is assessed when there is evidence 
that events or changes in circumstances have occurred that indicate that the carrying amount of a long-lived asset may not be 
recovered. Recoverability of these assets is assessed based on undiscounted expected future cash flows from the assets, 
considering a number of factors, including past operating results, budgets and economic projections, market trends and product 
development cycles. An impairment in the carrying value of each asset is assessed when the undiscounted expected future cash 
flows, including its eventual residual value, derived from the asset are less than its carrying value. Impairments, if any, are 
recognized in earnings. An impairment loss would be recognized in an amount equal to the excess of the carrying amount over 
the undiscounted expected future cash flows. 

Fair Value Measurements 

We define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly 

transaction between market participants at the measurement date. We determine fair value based on the assumptions market 
participants use when pricing the asset or liability. We also use the fair value hierarchy that prioritizes the information used to 
develop these assumptions. 

We value our available-for-sale securities utilizing third-party pricing services. The pricing services use many 

observable market inputs to determine value, including benchmark yields, reportable trades, broker/dealer quotes, issuer 
spreads, two-sided markets, benchmark securities, bids, offers, reference data, new issue data, monthly payment information 
and collateral performance. We validate the prices provided by our third-party pricing services by understanding the models 
used, obtaining market values from other pricing sources and confirming that those securities trade in active markets. 

Revenue Recognition 

To date, all of our revenue has been generated under research collaboration agreements, and all our revenue during 

2016, 2015 and 2014 was derived from our strategic alliance with AbbVie. The terms of these research collaboration 
agreements may include payment to us of non-refundable, upfront license fees, funding or reimbursement of research and 
development efforts, milestone payments if specified objectives are achieved, and/or royalties on product sales. We evaluate all 
deliverables within an arrangement to determine whether or not they provide value on a stand-alone basis. Based on this 
evaluation, the deliverables are separated into units of accounting. For each unit of accounting identified within an 
arrangement, we determine the period over which the performance obligation occurs. Revenue is then recognized using the 
proportional performance method. The proportional performance method is used when the level of effort to complete the 
performance obligations under an arrangement can be reasonably estimated. We recognize revenue based upon our best 
estimate of the selling price for each element when there is no other means to determine the fair value of that item and allocate 
the consideration based on the relative values. The process for determining the best estimate of the selling price involves 
significant judgment and estimates. 

At the inception of each agreement that includes milestone payments, we evaluate whether each milestone is 
substantive on the basis of the contingent nature of the milestone. This evaluation includes an assessment of whether: 

88 

 
 
 
 
 
 
 
 
 
 
 
 
•  

•  
•  

the consideration is commensurate with either (1) our performance to achieve the milestone, or (2) the 
enhancement of the value of the delivered item(s) as a result of a specific outcome resulting from our performance 
to achieve the milestone, 
the consideration relates solely to past performance, and 
the consideration is reasonable relative to all of the deliverables and payment terms within the arrangement. 

In making this assessment, we evaluate factors such as the clinical, regulatory, commercial and other risks that must be 

overcome to achieve the respective milestone, the level of effort and investment required, and whether the milestone 
consideration is reasonable relative to all deliverables and payment terms in the arrangement. We recognize revenues related to 
substantive milestones in full in the period in which the substantive milestone is achieved. If a milestone payment is not 
considered substantive, we recognize the amount associated with the applicable milestone based on the period over which the 
performance obligation occurs for each deliverable in the arrangement. 

We will recognize royalty revenue, if any, based upon actual and estimated net sales by the licensee of licensed 

products in licensed territories in the period the sales occur. We have not recognized any royalty revenue to date. 

Income Taxes 

We use the liability method to account for income taxes. Deferred tax assets and liabilities are determined based on 

differences between financial reporting and income tax basis of assets and liabilities, as well as net operating loss and tax credit 
carryforwards, and are measured using the enacted tax rates and laws that will be in effect when the differences 
reverse. Deferred tax assets are reduced by a valuation allowance to reflect the uncertainty associated with their ultimate 
realization. The effect of a change in tax rate on deferred taxes is recognized in income or loss in the period that includes the 
enactment date. 

We use our judgment for the financial statement recognition and measurement of a tax position taken or expected to be 

taken in a tax return. We recognize any material interest and penalties related to unrecognized tax benefits in income tax 
expense. 

Due to the uncertainty surrounding the realization of the net deferred tax assets in future periods, we have recorded a 

full valuation allowance against our otherwise recognizable net deferred tax assets as of December 31, 2016 and 2015. 

Basic and Diluted Net Loss per Common Share 

Basic net loss per share is based upon the weighted average number of common shares outstanding during the period. 
Diluted net loss per share is based upon the weighted average number of common shares outstanding during the period plus the 
effect of additional weighted average common equivalent shares outstanding during the period when the effect of adding such 
shares is dilutive. Common equivalent shares result from the assumed exercise of outstanding stock options and the exercise of 
outstanding warrants (the proceeds of which are then assumed to have been used to repurchase outstanding stock using the 
treasury stock method). In addition, the assumed proceeds under the treasury stock method include the average unrecognized 
compensation expense of stock options that are in-the-money. This results in the “assumed” buyback of additional shares, 
thereby reducing the dilutive impact of stock options. The two-class method is used for outstanding warrants as the warrants are 
considered to be participating securities, and such method is more dilutive than the treasury stock method. The following 
outstanding shares of common stock equivalents were excluded from the computation of net loss per share attributable to 
common stockholders for the periods presented because including them would have been antidilutive: 

Stock options 
Warrants 
Unvested restricted stock 

At December 31, 

2016 
6,067,945    
1,000,000    
797,111    

2015 
8,265,577   
1,000,000   
—   

2014 
6,577,296  
1,000,000  
—  

89 

 
 
 
 
 
 
 
 
 
 
Comprehensive Loss 

Comprehensive loss is comprised of net loss and other comprehensive income (loss). Other comprehensive income 

(loss) is comprised of unrealized holding gains and losses arising during the period on available-for-sale securities that are not 
other-than-temporarily impaired. During the year ended December 31, 2016, there were no material reclassifications out of 
accumulated other comprehensive income (loss). 

Stock-Based Compensation Expense 

For awards granted to employees and directors, including our 2013 Employee Stock Purchase Plan, or ESPP, we 
measure stock-based compensation cost at the grant date based on the estimated fair value of the award and recognize it as 
expense over the requisite service period on a straight-line basis. We record the expense of services rendered by non-employees 
based on the estimated fair value of the stock option as of the respective vesting date. We use the Black-Scholes valuation 
model in determining the fair value of all equity awards. For awards with performance conditions, we estimate the likelihood of 
satisfaction of the performance conditions, which affects the period over which the expense is recognized. When the 
performance conditions related to these awards are determined to be probably, we recognize the expense over the requisite 
service period. We have no awards with market conditions. 

Research and Development Expense 

Research and development expense consists of expenses incurred in performing research and development activities, 
including salaries and benefits, overhead expenses including facilities expenses, materials and supplies, preclinical expenses, 
clinical trial and related clinical manufacturing expenses, comparator drug expenses, stock-based compensation expense, 
depreciation of equipment, contract services, and other outside expenses. We also include as research and development expense 
upfront license payments related to acquired technologies which have not yet reached technological feasibility and have no 
alternative use. We expense research and development costs as they are incurred. Prepaid comparator drug expenses are 
capitalized and then recognized as expense when title transfers to us. We have been a party to collaboration agreements in 
which we were reimbursed for work performed on behalf of the collaborator, as well as one in which we reimbursed the 
collaborator for work it had performed. We record all appropriate expenses under our collaborations as research and 
development expense. If the arrangement provides for reimbursement of research and development expenses incurred by us, we 
evaluate the terms of the arrangement to determine whether the reimbursement should be recorded as revenue or as an offset to 
research and development expense. If the arrangement provides for us to reimburse the collaborator for research and 
development expenses or for the achievement of a development milestone for which a payment is due, we record the 
reimbursement or the achievement of the development milestone as research and development expense. 

New Accounting Pronouncements 

In May 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standard Update, or ASU, 

No. 2014-9, Revenue from Contracts with Customers, or ASU No. 2014-9, which supersedes all existing revenue recognition 
requirements, including most industry-specific guidance. The new standard requires a company to recognize revenue when it 
transfers goods or services to customers in an amount that reflects the consideration that the company expects to receive for 
those goods or services. ASU No. 2014-9 was originally effective for interim and annual periods beginning after December 15, 
2016. In August 2015, the FASB issued a one-year deferral of the effective date of this standard to annual reporting periods, 
and interim reporting periods within those years, beginning after December 15, 2017. Entities are allowed to adopt the standard 
as of the original effective date. The standard allows for two transition methods - full retrospective, in which the standard is 
applied to each prior reporting period presented or modified retrospective, in which the cumulative effect of initially applying 
the standard recognized at the date of initial adoption. We expect to elect the modified retrospective approach and are 
continuing to evaluate the impact that ASU No. 2014-09 may have on our consolidated financial statements in connection with 
collaboration and license agreements. 

90 

 
 
 
 
 
 
 
 
 
In February 2016, the FASB issued ASU No. 2016-02, Leases, or ASU No. 2016-02, which requires lessees to 

recognize the assets and liabilities arising from leases on the balance sheet.  ASU No. 2016-02 is effective for fiscal years 
beginning after December 15, 2018, including interim periods within those fiscal years.  Early adoption is permitted. We are 
currently evaluating the method of adoption and the potential impact that ASU No. 2016-02 may have on our financial position 
and results of operations. 

In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting, or 

ASU No. 2016-09, which simplifies several aspects of the accounting for share-based payment transactions, including the 
income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash 
flows. ASU No. 2016-09 is effective for annual periods beginning after December 15, 2016, and for interim periods within 
those annual periods.  Early adoption is permitted in any interim or annual period. The Company plans to change how it 
accounts for forfeitures upon adoption and does not expected to have a material impact on the Company’s consolidated 
financial statements. 

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows: Classification of Certain Cash 
Receipts and Cash Payments, or ASU No. 2016-15.  The new standard clarifies classification of certain cash receipts and cash 
payments on the statement of cash flows to reduce existing diversity in practice. The new accounting guidance will be effective 
on January 1, 2018. We are currently evaluating the method of adoption and the potential impact that ASU No. 2016-15 may 
have on our financial position and results of operations. 

Recently Adopted Accounting Pronouncements 

In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue 

as a Going Concern, or ASU No. 2014-15, which provides guidance on determining when and how to disclose going concern 
uncertainties in the financial statements. The new standard requires management to perform interim and annual assessments of 
an entity’s ability to continue as a going concern. ASU No. 2014-15 is effective for the annual period ending after 
December 15, 2016, and for annual periods and interim periods thereafter. We adopted ASU No. 2014-15 for the year ending 
December 31, 2016 and no additional disclosures were required upon adoption based on our existing cash resources and our 
planned level of spending. 

In January 2017, the FASB issued ASU No. 2017-01, Clarifying the Definition of a Business, or ASU No. 2017-01, 

which clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether 
transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The new accounting guidance is 
effective for annual periods beginning after December 15, 2017, including interim periods within those periods. Early adoption 
is permitted. We early adopted ASU No. 2017-01 as of October 1, 2016 and applied this new guidance to our analysis of the 
Verastem Agreement (Note 12). 

3. Stock-Based Compensation 

Under each of the stock incentive plans described below, stock option awards made to new employees upon 
commencement of employment typically provide for vesting of 25% of the shares underlying the award at the end of the first 
year of service with the remaining 75% of the shares underlying the award vesting ratably on a monthly basis over the 
following three-year period subject to continued service. Annual grants to existing employees typically provide for monthly 
vesting over four years. In addition, under each plan, all options granted expire no later than ten years after the date of grant. 

2010 Stock Incentive Plan 

Our 2010 Stock Incentive Plan, or the 2010 Plan, was approved by our stockholders in May 2010. The 2010 Plan 

provides for the grant of incentive stock options intended to qualify under Section 422 of the Internal Revenue Code of 1986, 
as amended, or IRC, as well as nonstatutory stock options, stock appreciation rights, restricted stock, restricted stock units and 
other stock-based and cash-based awards. Up to 9,785,000 shares of our common stock may be issued pursuant to awards 

91 

 
 
 
 
 
 
 
 
 
granted under the 2010 Plan, plus an additional amount of our common stock underlying awards issued under the 2000 Stock 
Incentive Plan, or the 2000 Plan, that expire or are canceled without the holders receiving any shares under those awards. As of 
December 31, 2016, an aggregate of 5,126,304 shares of our common stock were reserved for issuance upon the exercise of 
outstanding awards or achievement of awards with performance conditions, and up to 3,288,112 shares of common stock may 
be issued pursuant to awards granted under the 2010 Plan. 

2000 Stock Incentive Plan 

The 2000 Stock Incentive Plan, or the 2000 Plan, provided for the grant of stock options intended to qualify as 
incentive stock options under the IRC, as well as nonstatutory stock options and restricted stock. As of December 31, 2016, an 
aggregate of 1,738,752 shares of our common stock were reserved for issuance upon the exercise of outstanding awards 
granted under the 2000 Plan. The 2000 Plan was terminated upon approval of the 2010 Plan; therefore, no further grants may 
be made under the 2000 Plan. 

2013 Employee Stock Purchase Plan 

Our ESPP permits eligible employees to purchase shares of our common stock at a discount and consists of 
consecutive, overlapping 24-month offering periods, each consisting of four six-month purchase periods. On the first day of 
each offering period, each employee who is enrolled in the ESPP will automatically receive an option to purchase up to a whole 
number of shares of our common stock. The purchase price of each of the shares purchased in a given purchase period will be 
85% of the closing price of a share of our common stock on the first day of the offering period or the last day of the purchase 
period, whichever is lower. We suspended the ESPP program on June 24, 2016. During 2016, 15,860 shares of common stock 
were purchased for total proceeds of approximately $18,000. During 2015, 124,358 shares of common stock were purchased 
for total proceeds of $1.0 million. During 2014, 76,572 shares of common stock were purchased for total proceeds of $0.8 
million. 

Compensation Expense 

Total stock-based compensation expense, related to all equity awards, comprised the following: 

Research and development 
General and administrative 

Total stock-based compensation expense 

Year Ended December 31, 

2016 

2015 
(in thousands) 

2014 

$ 

$ 

6,421    $ 
7,293   
13,714    $ 

8,474    $ 
6,226   
14,700    $ 

7,502 
5,086 
12,588 

As of December 31, 2016, we had approximately $5.1 million of total unrecognized compensation cost, net of 

estimated forfeitures, related to unvested options and restricted stock, which are expected to be recognized over a weighted-
average period of 1.7 years. 

Restricted Stock 

During 2016, our Board of Directors approved grants of 1,792,250 shares of restricted common stock to eligible 

employees who continue employment with us. The restricted stock was granted pursuant to our 2010 Plan, is subject to 
forfeiture and will vest based on the achievement of specified performance conditions. The grant date fair value of the restricted 
stock is based on the closing price of our common stock on each of the grant dates. We recognized $1.2 million of stock 
compensation expense based on the fair value measured on the date of grant for the year ended December 31, 2016 related to 
the vested restricted stock.  

A summary of our restricted stock activity for the year ended December 31, 2016 is as follows: 

92 

 
 
 
 
 
 
 
 
 
 
 
Unvested at January 1, 2016 

Granted 

Vested 

Canceled 

Unvested at December 31, 2016 

Stock Options 

Valuation Assumptions 

Restricted Stock 

Weighted-Average Grant-
Date Fair Value 

—     $ 

1,792,250    
(751,789 )  

(243,350 )  
797,111     $ 

—  
1.49  
1.54  
1.54  
1.43  

We estimate the fair value of stock options at the date of grant using the Black-Scholes valuation model with the 

following weighted-average assumptions: 

Risk-free interest rate 
Expected annual dividend yield 
Expected stock price volatility 
Expected term of options 

December 31, 

2016 

2015 

1.8 % 
—  
73.0 % 
5.4 years  

1.5 % 
—  
70.8 % 
5.4 years  

2014 

1.7 %
—  
70.9 %
5.0 years 

The valuation assumptions were determined as follows: 
•   Risk-free interest rate: The yield on zero-coupon U.S. Treasury securities for a period that was commensurate 

with the expected term of the awards. 

•   Expected annual dividend yield: The estimate for annual dividends was zero, because we have not historically 

paid a dividend and do not intend to do so in the foreseeable future. 

•   Expected stock price volatility: We determined the expected volatility by using our available implied and 

historical price information. 

•   Expected term of options: The expected term of the awards represents the period of time that the awards were 

expected to be outstanding. We used historical data and expectations for the future to estimate employee exercise 
and post-vest termination behavior. 

We stratify employees into two groups to evaluate exercise and post-vesting termination behavior. We estimate 
forfeitures based upon historical data, adjusted for known trends, and will adjust the estimate of forfeitures if actual forfeitures 
differ or are expected to differ from such estimates. Subsequent changes in estimated forfeitures are recognized through a 
cumulative adjustment in the period of change and will also impact the amount of stock-based compensation expense in future 
periods. As of December 31, 2016, 2015 and 2014, the weighted-average forfeiture rate was estimated to be 24%, 14%, and 
14%, respectively. 

All options granted to employees during the years ended December 31, 2016, 2015 and 2014 were granted with 

exercise prices equal to the fair market value of our common stock on the date of grant. We consider the closing price of our 
common stock as reported on the NASDAQ Global Select Market to be the fair market value. 

A summary of our stock option activity for the year ended December 31, 2016 is as follows: 

93 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Outstanding at January 1, 2016 

Granted 

Exercised 

Forfeited 

Outstanding at December 31, 2016 

Vested or expected to vest at December 31, 2016 

Exercisable at December 31, 2016 

Stock Options 

8,265,577     $ 
1,617,472    
(67,077 )  

(3,748,027 )  
6,067,945     $ 
5,883,619     $ 
4,795,643     $ 

Weighted- 
Average 
Exercise Price 

Weighted-Average 
Remaining 
Contractual Life 
(years) 

Aggregate 
Intrinsic Value 
(in millions) 

13.73      
6.14      
6.40      
13.31      
12.06    
12.13    
12.46    

3.6   $ 

3.5   $ 

3.2   $ 

—  
—  
—  

The weighted-average fair value per share of options granted during the years ended December 31, 2016, 2015 and 

2014 was $3.75, $8.48 and $7.45, respectively. 

The aggregate intrinsic value of options outstanding at December 31, 2016 was calculated based on the positive 

difference between the closing fair market value of our common stock on December 31, 2016 and the exercise price of the 
underlying options. The aggregate intrinsic value of options exercised during the years ended December 31, 2016, 2015 and 
2014 was approximately $56,000, $1.5 million and $4.0 million, respectively. The total cash received from employees and non-
employees as a result of stock option exercises during the year ended December 31, 2016 was $0.4 million. 

No related income tax benefits were recorded during the years ended December 31, 2016, 2015 or 2014. 

We settle employee stock option exercises with newly issued shares of our common stock. 

Employee Stock Purchase Plan 

The weighted-average fair value of each purchase right granted during the year ended December 31, 2016, 2015 and 
2014 was $2.91, $4.24 and $5.66, respectively. For the years ended December 31, 2016, 2015 and 2014, the fair values were 
estimated using the Black-Scholes valuation model using the following weighted-average assumptions: 

Risk-free interest rate 
Expected annual dividend yield 
Expected stock price volatility 
Expected term of options 

Year Ended December 31, 

2016 

2015 

2014 

0.8 % 
—  
63.5 % 
1.25 years  

0.4 % 
—  
60.3 % 
1.25 years  

0.3 %
—  
66.7 %
1.25 years 

4. Cash, Cash Equivalents and Available-for-Sale Securities 

The following is a summary of cash, cash equivalents and available-for-sale securities: 

94 

 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
Cash and cash equivalents 

Available-for-sale securities: 

December 31, 2016 

Gross 
Unrealized 
Gains 

Gross 
Unrealized 
Losses 

Estimated 
Fair Value 

Cost 

$ 

74,060    $ 

(in thousands) 
—    $ 

—    $ 

74,060 

U.S. Treasury securities due in one year or less 

U.S. government-sponsored enterprise obligations due in one year 
or less 

Total available-for-sale securities 

Total cash, cash equivalents and available-for-sale securities 

$ 

6,753   

11,254
18,007   
92,067    $ 

—   

—
—   
—    $ 

(1)  

(2)  

(3)  

(3)   $ 

6,752 

11,252
18,004 
92,064 

Cash and cash equivalents 

Available-for-sale securities: 

Corporate obligations due in one year or less 

Asset-backed securities due in one year or less 

Total available-for-sale securities 

Total cash, cash equivalents and available-for-sale securities 

$  245,186    $ 

December 31, 2015 

Gross 
Unrealized 
Gains 

Gross 
Unrealized 
Losses 

Estimated 
Fair Value 

Cost 

$  188,170    $ 

(in thousands) 
—    $ 

—    $  188,170 

46,049   
10,967   
57,016   

52   
—   
52   
52    $ 

(4)  

(3)  

46,097 
10,964 
57,061 
(7)  
(7)   $  245,231 

We held five debt securities at December 31, 2016 that had been in an unrealized loss position for less than twelve 

months. The fair value of these securities was $18.0 million. As of December 31, 2016, we held no securities in foreign 
financial institutions. We evaluated our securities for other-than-temporary impairments based on quantitative and qualitative 
factors. We considered the decline in market value for these five securities to be primarily attributable to current economic and 
market conditions. It is not more likely than not that we will be required to sell these securities, and we do not intend to sell 
these securities before the recovery of their amortized cost bases. Based on our analysis, we do not consider these investments 
to be other-than-temporarily impaired as of December 31, 2016. 

We had no material realized gains or losses on our available-for-sale securities for the years ended December 31, 

2016, 2015 and 2014. There were no other-than-temporary impairments recognized for the years ended December 31, 2016, 
2015 and 2014. 

5. Fair Value 

We use a valuation hierarchy for disclosure of the inputs used to measure fair value. This hierarchy prioritizes the 
inputs into three broad levels. Level 1 inputs, which we consider the highest level inputs, are quoted prices (unadjusted) in 
active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active 
markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for 
substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based on our own assumptions 
used to measure assets and liabilities at fair value. The classification of a financial asset or liability within the hierarchy is 
determined based on the lowest level input that is significant to the fair value measurement. For our fixed income securities, we 
reference pricing data supplied by our custodial agent and nationally known pricing vendors, using a variety of daily data 
sources, largely readily-available market data and broker quotes. We validate the prices provided by our third-party pricing 
services by reviewing their pricing methods and obtaining market values from other pricing sources. After completing our 
validation procedures, we did not adjust or override any fair value measurements provided by our pricing services as of 
December 31, 2016 and 2015. 

95 

 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
The following table provides the assets carried at fair value measured on a recurring basis as of December 31, 2016: 

Assets: 
Cash and cash equivalents 
U.S. Treasury securities 
U.S. government-sponsored enterprise obligations 

Total 

Level 1 

Level 2 

(in thousands) 

$ 

$ 

61,008    $ 
—   
—   
61,008    $ 

13,052 
6,752 
11,252 
31,056 

The fair value of the available-for-sale securities and cash and cash equivalents (including asset types listed below with 
maturities of three months or less at the time of purchase) is based on the following inputs: 

•   U.S. Treasury securities: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided 

markets, benchmark securities, bids, offers and reference data including TRACE® reported trades. 

•   U.S. government-sponsored enterprise obligations:  benchmark yields, reported trades, broker/dealer quotes, 
issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data including TRACE® 
reported trades. 

The carrying amounts reflected in the consolidated balance sheets for unbilled accounts receivable, prepaid expenses 

and other current assets, other assets, accounts payable and accrued expenses approximate their fair value due to their short 
term maturities. 

There have been no changes to our valuation methods during the year ended December 31, 2016. We evaluate 
transfers between levels at the end of each reporting period. There were no transfers of assets or liabilities between Level 1 and 
Level 2 during the year ended December 31, 2016. We had no available-for-sale securities that were classified as Level 3 at any 
point during the year ended December 31, 2016. 

6. Prepaid expenses and other current assets 

Prepaid expenses and other current assets consist of the following: 

December 31, 

2016 

2015 

(in thousands) 
3,336     $ 
5,023    
—    
85    
8,444     $ 

6,898  
1,383  
1,185  
—  
9,466  

$ 

$ 

Prepaid expenses 
Other current assets 
Short-term receivable (note 11) 
Value-added tax 

Total prepaid expenses and other current assets 

7. Property and Equipment 

Property and equipment consist of the following: 

96 

 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
Laboratory equipment 
Computer equipment and software 
Furniture and fixtures 
Building and building improvements 
Leasehold improvements 

Less accumulated depreciation 

$ 

$ 

December 31, 

2016 

2015 

(in thousands) 
—    $ 

4,411   
918   
23,586   
431   
29,346   
(5,922)  
23,424    $ 

12,190 
5,704 
2,136 
23,586 
5,533 
49,149 
(20,909) 
28,240 

During the year ended December 31, 2016, we retired or sold certain laboratory equipment, computer equipment, 

furniture and fixtures and leasehold improvements that had a net book value of approximately $1.3 million for proceeds of $2.1 
million, resulting in a net gain of $0.9 million.  

During the year ended December 31, 2016, we identified and recorded the impairment of approximately $0.8 million 
of our property and equipment related to the strategic restructuring of our company. See Note 13 for additional information on 
the impairment.  

During the year ended December 31, 2014, we entered into a lease agreement for the lease of office space at 784 

Memorial Drive, Cambridge, Massachusetts. Upon lease commencement, building construction was initiated. We were 
involved in the construction project and were deemed for accounting purposes to be the owner of the building during the 
construction period. The construction was substantially complete, and the Leased Premises were available for occupancy in 
June 2015. The construction-in-progress was then placed in service, and the asset was transferred to building and building 
improvements. As of December 31, 2016 and December 31, 2015, we recognized the building as building and building 
improvements of $14.7 million on our consolidated balance sheet (see Note 11).  

8. Restricted Cash 

We held $1.7 million in restricted cash as of December 31, 2016 and December 31, 2015. The balances are held on 
deposit with a bank to collateralize standby letters of credit in the name of our facility lessors in accordance with our facility 
lease agreements.  On January 24, 2017, the $0.6 million letter of credit related to our 780/790 Memorial Drive premises was 
canceled (see Note 11 related to the lease termination). 

9. Other assets 

Other assets consist of the following: 

Value-added tax, net 
Long term prepaid expenses 
Other assets 

Total other assets 

10. Accrued Expenses 

Accrued expenses consisted of the following: 

97 

December 31, 

2016 

2015 

(in thousands) 
—     $ 
22    
19    
41     $ 

2,034  
284  
64  
2,382  

$ 

$ 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Accrued restructuring 
Accrued compensation and benefits 
Accrued drug manufacturing costs 
Accrued clinical studies 
Accrued preclinical studies 
Deferred rent, current 
Other 

Total accrued expenses 

11. Commitments and Contingencies 

December 31, 

2016 

2015 

(in thousands) 
6,920     $ 
5,445    
311    
7,054    
2    
—    
1,276    
21,008     $ 

—  
8,732  
3,494  
8,531  
539  
261  
3,047  
24,604  

$ 

$ 

We lease our office space at 784 Memorial Drive under a lease agreement with BHX, LLC, as trustee of 784 Realty 

Trust. Through October 31, 2016 we leased office and laboratory space at 780 and 790 Memorial Drive under a lease 
agreement with ARE-770/784/790 Memorial Drive, LLC.  As described further below, we terminated the lease for the space at 
780 and 790 Memorial Drive effective October 31, 2016. 

784 Memorial Drive Lease Arrangement 

On September 25, 2014, we entered into a lease agreement, or the Lease, with BHX, LLC, as trustee of 784 Realty 

Trust, or the Landlord, for the lease of office space at 784 Memorial Drive, Cambridge, Massachusetts. The term of the Lease 
commenced on November 1, 2014, the Commencement Date, and expires on March 31, 2025, the Expiration Date. Pursuant to 
the Lease, on the Commencement Date we agreed to lease 61,000 square feet of the leased premises, which represents the 
entire building, the Leased Premises. 

From the Commencement Date until March 31, 2015, the total base rent of the Lease was zero dollars per month. 

From April 1, 2015 through March 31, 2020, the total base rent of the Lease is $170,292 per month. From April 1, 2020 until 
the Expiration Date, the total base rent of the Lease will be $190,625 per month. In addition to the base rent, we are also 
responsible for our share of the operating expenses, utility costs and real estate taxes, in accordance with the terms of the Lease. 
Pursuant to the terms of the Lease, we provided a security deposit in the form of a letter of credit in the initial amount of $1.0 
million, which may be reduced by up to $750,000 over time in accordance with the terms of the Lease. The letter of credit plus 
the associated bank fee of $30,000 has been included in our accompanying consolidated balance sheets as restricted cash. Of 
the total balance, $0.5 million was classified as short term based on the contractual release of restrictions. The Landlord agreed 
to pay up to $5,856,100 for certain updates and repairs to be made to the Leased Premises. We have two consecutive rights to 
extend the term of the Lease for five years under each extension, provided that we provide notice to the Landlord no earlier 
than 18 months or later than 12 months prior to expiration of the Lease. The base rent for each extension term shall be equal to 
95% of the then fair market base rent per square foot for the premises. The Lease contains customary provisions allowing the 
Landlord to terminate the lease if we fail to remedy a default of any of our obligations under the Lease within specified time 
periods or upon our bankruptcy or insolvency. 

Upon the Commencement Date, building construction was initiated to suit our future needs. We were responsible for 

the construction project, including having responsibility to pay for a portion of the structural elements of the building and 
bearing the risk of cost overruns. Therefore, we were deemed for accounting purposes to be the owner of the building during 
the construction period. Accordingly, we determined the fair value of the building as of November 1, 2014 through an 
independent appraisal and recorded the building as an asset on our consolidated balance sheet, together with a corresponding 
construction liability, in November 2014 when the lease and construction commenced. On our consolidated balance sheet, we 
recorded project construction costs as an asset during the construction period and reflected an increase in the construction 
financing obligation for the amount of Landlord incentives received. The construction was substantially complete and the 
Leased Premises was available for occupancy in June 2015. The construction-in-progress was then placed in service, and the 

98 

 
 
 
 
 
 
 
construction liability was reclassified to a financing obligation as such transaction did not qualify for sale-leaseback accounting 
due to our continuing involvement with the property in the form of non-recourse financing to the lessor as well as our 
obligation to pay for all costs in excess of the specified Landlord allowances. Depreciation on the building and building 
improvements commenced in June 2015 and will be recorded over the initial term of the lease using a residual value equal to 
the financing obligation at the end of the lease term, which approximates the net book value using the estimated useful lives of 
the respective assets. Interest expense is recorded on a monthly basis using an estimated incremental borrowing rate based on 
comparable 10 year secured financings and commenced in June 2015 when the building was placed into service. In April and 
May 2015, the construction financing obligation was reduced by that portion of the lease payment allocated to the construction 
financing obligation principal. Commencing in June 2015, the financing obligation is reduced on a monthly basis by that 
portion of the lease payment allocated to the financing obligation principal. 

At December 31, 2016 and 2015, the accompanying consolidated balance sheet reflects the building and accumulated 

construction costs net of accumulated depreciation of approximately $22.0 million and $23.0 million, respectively, and a 
financing obligation of approximately $19.6 million and $20.0 million at December 31, 2016 and 2015, respectively. 

We divide our future lease payments into a portion that is allocated to the financing obligation and a portion that is 
allocated to the land on which the building is located. The portion of the lease obligation allocated to the land is treated for 
accounting purposes as an operating lease commencing in November 2014 and recorded on a straight-line basis over the initial 
lease term. Rent expense pertaining to the land was approximately $0.4 million for each of the twelve months ended 
December 31, 2016 and 2015. 

In November 2015 we subleased approximately 12,000 square feet of the Leased Premises to two tenants with initial 

terms ending in July 2017 and October 2017, respectively. We also granted each tenant an option to extend the term for one 
year. For the years ending December 31, 2016 and 2015, sublease income of approximately $0.7 million and $0.1 million is 
included in other income in our consolidated statements of operations and comprehensive loss and is not offset against rent 
expense because, for accounting purposes, we are considered the owner of the building. Minimum future sublease income 
under these noncancelable subleases is approximately $0.5 million in 2017. 

780/790 Memorial Drive Lease Arrangement 

On November 8, 2016, we and ARE-770/784/790 Memorial Drive, LLC, or ARE, entered into an agreement for 

termination of lease and voluntary surrender of premises effective, October 31, 2016, or the 780/790 Memorial Drive 
Termination Agreement. Under the 780/790 Memorial Drive Termination Agreement, we and ARE terminated by mutual 
consent our lease agreement, by and between us and ARE, dated as of July 2, 2002, as amended, which we refer to as the 
780/790 Memorial Drive Lease Agreement, regarding our facilities at 780 Memorial Drive and 790 Memorial Drive, 
Cambridge, Massachusetts, which we refer to as the Leased Properties. We elected to terminate the 780/790 Memorial Drive 
Lease Agreement to consolidate our facilities as part of our strategic restructuring efforts. 

The 780/790 Memorial Drive Lease Agreement was previously scheduled to expire on March 31, 2025. Pursuant to 

the 780/790 Memorial Drive Termination Agreement, the 780/790 Memorial Drive Lease Agreement expiration date was 
accelerated to October 31, 2016, which we refer to as the Termination Date. 

As a result of our early termination, we owed to ARE a termination payment of approximately $1.8 million, comprised 

of a $1.7 million fee as consideration for ARE’s agreement to enter into the 780/790 Memorial Drive Termination Agreement 
and a payment of approximately $64,000 by us to ARE in lieu of our performance of certain restoration requirements with 
regards to the Leased Properties. Pursuant to the terms of the 780/790 Memorial Drive Lease Agreement, on January 24, 2017, 
the $0.6 million letter of credit was canceled, which is included in our accompanying consolidated balance sheets as restricted 
cash for the years ended December 31, 2016 and 2015. 

99 

 
 
 
 
 
 
 
 
 
Previously, on November 6, 2014, we entered into a Seventh Amendment to Lease, or the Lease Amendment, by and 
between us and ARE, the landlord, which amended the original lease agreement dated July 2, 2002, as amended to date, or the 
Original Lease. We refer to the Original Lease together with the Lease Amendment as the 780/790 Memorial Drive Lease. 

Under the Lease Amendment, we received allowances of $3.0 million for the design and construction of tenant 

improvements. During the year ended December 31, 2015 the total of these allowances of $3.0 million was reflected on our 
consolidated balance sheets as a receivable, with a corresponding amount included in deferred rent liability. Of this $3.0 
million, approximately $1.2 million was classified as a current asset and represented the estimated improvements that would be 
performed during 2016. The deferred rent was being amortized to rent expense over the term of the lease. Upon entering into 
the 780/790 Memorial Drive Termination Agreement in October 2016, the remaining leasehold improvements, deferred rent 
and unused allowance for tenant improvements were written off resulting in no significant gain or loss.  

We determined that the proposed improvements on the 780 Memorial Drive premises generally consist of normal 
tenant improvements and that we would not be deemed for accounting purposes to be the owner of the building during the 
construction period. 

Future minimum payments, excluding operating costs and taxes, under the 784 Memorial Drive lease described above 

is as follows: 

Years Ending December 31: 

$ 

2017 
2018 
2019 
2020 
2021 
2022 and beyond 

Total minimum lease payments 

$ 

784 Facility 

(in thousands) 

2,044  
2,044  
2,044  
2,227  
2,287  
7,433  
18,079  

Rent expense of $3.2 million, $4.6 million and $4.7 million, before considering sublease income, was incurred during 
the years ended December 31, 2016, 2015 and 2014, respectively. Deferred rent is being amortized to rent expense over the life 
of the lease. During the years ended December 31, 2016, 2015 and 2014, we subleased a portion of our facility space at 790 
Memorial Drive for total sublease income of $0.3 million, $0.6 million and $0.2 million, respectively. We record sublease 
payments that we received on the sublease at 790 Memorial Drive as an offset to rent expense in our consolidated statements of 
operations and comprehensive loss.  

12. Collaborations 

Verastem 

On October 29, 2016, we and Verastem entered into a license agreement, which we and Verastem amended and 
restated on November 1, 2016, effective as of October 29, 2016. We refer to the amended and restated license agreement as the 
Verastem Agreement. Under the Verastem Agreement, we granted to Verastem an exclusive worldwide license for the research, 
development, commercialization, and manufacture of duvelisib, an oral, dual inhibitor of the delta and gamma isoforms of 
phosphoinositide-3-kinase, or PI3K, and products containing duvelisib, which we refer to as the Licensed Products, in each 
case in oncology indications. Upon entry into the Verastem Agreement, Verastem assumed financial responsibility for activities 
that were part of our ongoing duvelisib program, including a randomized, Phase 3 monotherapy clinical study in patients with 
relapsed/refractory chronic lymphocytic leukemia which we refer to as the DUO Study. Verastem is obligated to use diligent 
efforts, as defined in the Verastem Agreement, to develop and commercialize one Licensed Product. During the term of the 
Verastem Agreement, we have agreed not to research, develop, manufacture or commercialize duvelisib in any indication in 
humans or animals. 

100 

 
 
 
 
 
 
 
 
 
 
Under the Verastem Agreement, we have financial responsibility for up to $4.5 million of costs related to the shutdown 

of certain specified clinical studies. We have incurred a portion of the the $4.5 million maximum for clinical study shutdown 
costs through December 31, 2016 and expect to reach the $4.5 million maximum during the first half of 2017. Following a 
short transition period, Verastem has assumed all financial and operational responsibility for the duvelisib program except for 
the clinical shutdown costs and certain clinical close-out activities we agreed to retain and will reimburse us for costs incurred 
by us during the transition period, together with certain prepaid expenses associated with the clinical studies assumed by 
Verastem. As of December 31, 2016, we recognized a receivable from Verastem of $4.4 million within prepaids and other 
current assets that represents reimbursements of our transition activities as well as clinical prepaids that are being assumed by 
Verastem. We recognized a credit to research and development expense of $3.3 million, a credit of $0.4 million to general and 
administrative expense and the remainder related to existing clinical prepaids.  

 Pursuant to the terms of the Verastem Agreement, Verastem is required to make the following payments to us in cash 
or, at Verastem’s election, in whole or in part, in shares of Verastem common stock: (i) $6.0 million upon the completion of the 
DUO Study if the results of the DUO Study meet certain pre-specified criteria and (ii) $22.0 million upon the approval for a 
Licensed Product of a new drug application, or NDA, in the United States or an application for marketing authorization with a 
regulatory authority outside of the United States. For any portion of any of the foregoing payments which Verastem elects to 
issue in shares of common stock in lieu of cash, the number of shares of Verastem common stock to be issued would be 
determined by multiplying (1) 1.025 by (2) the number of shares of common stock equal to (a) the amount of the payment to be 
paid in shares of common stock divided by (b) the average closing price of a share of common stock as quoted on NASDAQ 
for a twenty day period following the public announcement of the applicable milestone event. The shares of common stock 
would be issued as unregistered securities, and Verastem would have an obligation to promptly file a registration statement with 
the U.S. Securities and Exchange Commission to register such shares for resale. Any issuance of shares would be subject to the 
satisfaction of standard closing conditions, including that all material authorizations, consents, and similar approvals necessary 
for such issuance shall have been obtained. 

Verastem is also obligated to pay us royalties on worldwide net sales of Licensed Products ranging from the mid-

single digits to the high single-digits. The royalty obligation will continue on a product-by-product and country-by-country 
basis until the latest to occur of (i) the last-to-expire patent right covering the applicable Licensed Product in the applicable 
country, (ii) the last-to-expire patent right covering the manufacture of the applicable Licensed Product in the country of 
manufacture of such Licensed Product, (iii) the expiration of non-patent regulatory exclusivity for such Licensed Product in the 
applicable country and (iv) ten years following the first commercial sale of a Licensed Product in the applicable country, 
provided that upon the expiration of the last-to-expire patent right covering the Licensed Product in the United States, the 
applicable royalty on net sales for such Licensed Product in the United States will be reduced by 50%. The royalties are also 
subject to reduction by 50% of certain third-party royalty payments or patent litigation damages or settlements which might be 
required to be paid by Verastem if litigation were to arise, with any such reductions capped at 50% of the amounts otherwise 
payable during the applicable royalty payment period. 

In addition to the foregoing, Verastem is obligated to pay us a royalty of 4% on worldwide net sales of Licensed 

Products to cover the reimbursement of research and development costs owed by us to Mundipharma International Corporation 
Limited, or Mundipharma, and Purdue Pharmaceutical Products L.P., or Purdue.  Once we have fully reimbursed Mundipharma 
and Purdue, Verastem’s royalty obligations described in this paragraph will be reduced to 1% of net sales in the United States, 
which we refer to as the Trailing Mundipharma Royalties. The Trailing Mundipharma Royalties are payable on a product-by-
product basis until the latest to occur of (i) the last-to-expire patent right covering the applicable Licensed Product in the United 
States, (ii) the last-to-expire patent right covering the manufacture of the applicable Licensed Product in the country of 
manufacture of such Licensed Product, (iii) the expiration of non-patent regulatory exclusivity for such Licensed Product in the 
United States and (iv) ten years following the first commercial sale of such Licensed Product in the United States, provided 
that, upon the expiration of the last-to-expire patent right covering the a Licensed Product in the United States, the applicable 
royalty on net sales for such Licensed Product in the United States will be reduced by 50%.  In addition, the Trailing 
Mundipharma Royalties are subject to reduction by 50% of certain third-party royalty payments or patent litigation damages or 

101 

 
 
 
 
 
 
 
 
settlements which might be required to be paid by Verastem if litigation were to arise, with any such reductions capped at 50% 
of the amounts otherwise payable during the applicable royalty payment period.  

The Verastem Agreement expires when each party no longer has any obligations to the other party under the Verastem 
Agreement. Verastem has the right to terminate the Verastem Agreement upon at least 180 days prior written notice to us at any 
time following the earlier of (i) Verastem’s decision to discontinue the DUO Study under certain circumstances as specified in 
the Verastem Agreement and (ii) the determination of whether the DUO Study has met its pre-specified primary endpoint. 
Either party may terminate the Verastem Agreement if the other party materially breaches or defaults in the performance of its 
obligations.  If we terminate the Verastem Agreement for Verastem’s material breach, patent challenge, or insolvency, or if 
Verastem terminates for convenience, then, at our request and subject to our execution of a waiver of certain types of damages, 
Verastem will transition the duvelisib program back to us at Verastem’s cost.  If Verastem terminates for our breach or 
insolvency, Verastem will effect a more limited transition of the duvelisib program to us at our request and cost, subject to our 
execution of a waiver of certain types of damages, and we will thereafter pay to Verastem a low single-digit royalty on net sales 
of Licensed Products. 

We and Verastem have made customary representations and warranties and have agreed to certain customary 

covenants, including confidentiality and indemnification. 

AbbVie 

The AbbVie Agreement 

On September 2, 2014, we entered into a collaboration and license agreement between us and AbbVie which we refer 

to as the AbbVie Agreement. Under the AbbVie Agreement, we and AbbVie agreed to develop and commercialize products 
containing duvelisib in oncology indications. We refer to products containing duvelisib included under the AbbVie Agreement 
as Duvelisib Products. IPI-549, an orally administered, selective PI3K-gamma inhibitor, was excluded from the collaboration. 
On June 24, 2016, AbbVie delivered to us a written notice that AbbVie was exercising its right to terminate the AbbVie 
Agreement unilaterally upon 90 days’ written notice, which we refer to as the AbbVie Opt-Out.  The termination of the AbbVie 
Agreement was effective on September 23, 2016.  

Under the terms of the AbbVie Agreement, we and AbbVie agreed to share equally commercial profits or losses of 

Duvelisib Products in the United States, including sharing equally the existing royalty obligations to Mundipharma and Purdue  
for sales of Duvelisib Products in the United States, as well as sharing equally the existing U.S. milestone payment obligations 
to Takeda Pharmaceutical Company Limited, or Takeda, our PI3K program licensor. For more information about such 
obligations to Takeda, refer to the section below titled “Takeda.” 

AbbVie had agreed to pay us tiered royalties on net sales of Duvelisib Products outside the United States ranging from 
23.5% to 30.5%, depending on annual net sales of Duvelisib Products by AbbVie, its affiliates and its sublicensees. This tiered 
royalty could have been further reduced based on specified factors, including patent expiry, generic entry, and royalties paid to 
third parties.  

We and AbbVie had shared oversight of development and had agreed to use diligent efforts, as defined in the AbbVie 
Agreement, to carry out our development activities under an agreed upon development plan. We had primary responsibility for 
the conduct of development of Duvelisib Products, unless otherwise agreed, and AbbVie had responsibility for the conduct of 
certain contemplated combination clinical studies, including those examining duvelisib and venetoclax, a selective first-in-class 
B-cell lymphoma 2 inhibitor, which we refer to as the AbbVie Studies. The development and manufacturing costs for the 
AbbVie Studies were shared equally. During the years ended December 31, 2016 and 2015, we recognized an expense of $1.0 
million and $1.2 million, respectively, in research and development expense related to our share of the AbbVie Studies cost. 

We were responsible for the manufacture of Duvelisib Products until the transition of manufacturing responsibility to 
AbbVie, which we had expected to occur as promptly as practicable while ensuring continuity of supply. Excluding the AbbVie 
Studies, we were responsible for all costs to develop and manufacture Duvelisib Products up to a maximum amount of $667 
million, after which costs were to be shared equally. During the years ended December 31, 2016 and 2015, we recognized an 

102 

 
 
 
 
 
 
 
 
 
expense of $6.6 million and $8.0 million, respectively, in research and development expense related to costs incurred by 
AbbVie for other than the AbbVie Studies. 

We and AbbVie shared operational responsibility and decision making authority for commercialization of Duvelisib 

Products in the United States. Since we had not yet reached commercialization and regulatory approval, we recognized the cost 
of manufacturing as a component of research and development and the cost of commercialization as a component of general 
and administrative expenses. During the years ended December 31, 2016 and 2015, we accounted for AbbVie’s share of the 
costs as a reduction of the related expense. We recognized a credit of $0.1 million and $0.8 million in research and 
development expense related to these costs during the years ended December 31, 2016 and 2015, respectively. During the year 
ended December 31, 2016 and 2015, we recognized credits of $2.6 million and $2.0 million, respectively, in general and 
administrative expense related to these costs. 

Under the AbbVie Agreement, AbbVie paid us a non-refundable $275 million upfront payment in 2014 and a $130 

million milestone payment in November 2015 associated with the completion of enrollment of DYNAMO™, our Phase 2 
clinical study evaluating the efficacy and safety of duvelisib in patients with refractory indolent non-Hodgkin lymphoma, or 
iNHL. Of the total $405 million received from AbbVie, we allocated $234.3 million to the license which was recognized as 
revenue upon receipt of the upfront payment and achievement of the milestone payment. Revenue related to development 
services and committee services was recognized using the proportionate performance method. We initially estimated that 
services would be performed through 2019. 

The AbbVie Agreement was intended to remain in effect until all development, manufacturing and commercialization 

of Duvelisib Products ceased, unless terminated earlier. AbbVie had the right to terminate the AbbVie Agreement for 
convenience after a specified notice period as described above. 

AbbVie Opt-Out 

The AbbVie Opt-Out was irrevocable, and we had no obligation to continue to provide AbbVie any services related to 

Duvelisib Products after June 24, 2016. We recognized revenue of $18.7 million and $109.1 million during the year ended 
December 31, 2016 and 2015, respectively, related to the license and development and committee services provided through 
June 24, 2016. We recorded the remaining amounts already received from AbbVie and allocated to development and committee 
services of $112.2 million as a gain during the year ended December 31, 2016, reflecting the fact that we are no longer 
obligated to provide any such services and have no obligation to refund any of the payments received to date. 

Upon formal termination of the AbbVie Agreement on September 23, 2016, we received all rights to the regulatory 

filings related to duvelisib, our license to AbbVie terminated, and AbbVie granted us an exclusive, perpetual, irrevocable, 
royalty-free license, under certain patent rights and know-how controlled by AbbVie, to develop, manufacture and 
commercialize products containing duvelisib, excluding any compound which is covered by patent rights controlled by AbbVie 
or its affiliates, in oncology indications worldwide. 

Neither party has any ongoing financial obligation to the other under the AbbVie Agreement. In connection with the 

AbbVie Opt-Out, AbbVie will not pay any royalties or any of the additional $400 million in milestone payments that we could 
have potentially earned under the AbbVie Agreement. 

Wind-Down Plan 

During the third quarter of 2016, we and AbbVie finalized the wind-down plan to ensure a smooth transition of the 

responsibilities of the parties. 

We recorded $1.9 million in research and development expense for AbbVie’s clinical wind-down services during the 

year ended December 31, 2016 for services rendered during the wind-down period. In connection with finalization of the wind-
down plan, we received $2.7 million from AbbVie for reimbursement of our wind-down activities in medical affairs and 

103 

 
 
 
 
 
 
 
 
 
 
 
 
commercial services, which was recorded as a credit to research and development expense of $0.9 million and a credit to 
general and administrative expense of $1.8 million during the year ended December 31, 2016.   

We do not expect to receive any further proceeds from AbbVie for our wind-down activities, and we do not expect to 

incur any additional expenses for their clinical wind-down services. 

Takeda 

In July 2010, we entered into a development and license agreement with Intellikine, Inc., or Intellikine, under which 

we obtained rights to discover, develop and commercialize pharmaceutical products targeting the delta and/or gamma isoforms 
of PI3K, including duvelisib and IPI-549. In January 2012, Intellikine was acquired by Takeda, acting through its Millennium 
business unit. In December 2012, we amended and restated our development and license agreement with Takeda. We refer to 
our PI3K inhibitor program licensor as Takeda and to the amended and restated development and license agreement, as 
amended by the July 2014 and September 2016 amendments described in more detail below, as the Takeda Agreement. 

Under the terms of the Takeda Agreement, we retained worldwide development rights for, and, in exchange for an 

agreement to pay Takeda $15 million in installments, we regained commercialization rights for products arising from the 
agreement for all therapeutic indications. We are solely responsible for research conducted under the agreement. During the 
year ended December 31, 2012, we paid $1.7 million of the $15 million, and we recorded the $15 million release payment at its 
fair value of $14.4 million in research and development expenses. During the year ended December 31, 2014, we paid to 
Takeda the second installment of $6.7 million. During the year ended December 31, 2015, we paid to Takeda the final 
installment of $6.7 million. 

In February 2014, we paid Takeda a $10 million milestone payment in connection with the initiation of DUO. We 

recognized the $10 million payment as research and development expense during the year ended December 31, 2014. 

Under the terms of the Takeda Agreement, we are obligated to pay Takeda an aggregate of up to $5 million in success-

based milestone payments for the development of a product candidate other than duvelisib, which could include IPI-549. We 
are also obligated to pay Takeda up to an aggregate of $165 million in success-based milestone payments related to the 
approval and commercialization of one product, which could be a product containing IPI-549.  

Except for duvelisib in oncology indications, we are obligated to pay Takeda tiered royalties ranging from 7% to 11% 

on worldwide net sales of products described in the agreement, which could include IPI-549 if successfully developed and 
commercialized. Such royalties are payable until the later to occur of the expiration of specified patent rights and the expiration 
of non-patent regulatory exclusivities in a country, subject to reduction of the royalties and, in certain circumstances, limits on 
the number of products subject to a royalty obligation. 

The Takeda Agreement expires on the later of the expiration of certain patents and the expiration of the royalty 

payment terms for the products, unless earlier terminated in accordance with its terms. Either party may terminate the Takeda 
Agreement on 75 days’ prior written notice if the other party materially breaches the agreement and fails to cure such breach 
within the applicable notice period, provided that the notice period is reduced to 30 days where the alleged breach is non-
payment. Takeda may also terminate the Takeda Agreement if we are not diligent in developing or commercializing the 
licensed products and do not, within three months after notice from Takeda, demonstrate to Takeda’s reasonable satisfaction 
that we have not failed to be diligent. The foregoing periods are subject to extension in certain circumstances. Additionally, 
Takeda may terminate the Takeda Agreement upon 30 days’ prior written notice if we or a related party bring an action 
challenging the validity of any of the licensed patents, provided that we have not withdrawn such action before the end of the 
30-day notice period. We may terminate the agreement at any time upon 180 days’ prior written notice. The Takeda Agreement 
also provides for customary reciprocal indemnification obligations of the parties. 

104 

 
 
 
 
 
 
 
 
 
 
 
July 2014 Amendment 

On March 31, 2015, we paid a $52.5 million fee to exercise an option that we purchased from Takeda in July 2014 for 

a one-time upfront payment of $5 million. As a result of our exercise of this option, we are no longer obligated under the 
Takeda Agreement to pay to Takeda tiered royalties with respect to worldwide net sales in oncology indications of products 
containing or comprised of duvelisib. We recognized the $5 million upfront payment and the $52.5 million exercise payment as 
research and development expense during the year ended December 31, 2014 and December 31, 2015, respectively, as there is 
no alternative future use beyond the existing research and development activities.  

September 2016 Amendment 

In September 2016, we entered into a second amendment with Takeda.  Under the second amendment, effective as of 

our execution of (i) a license or sublicense of rights under certain intellectual property to use, develop, or commercialize 
duvelisib or (ii) a sale, in an asset sale, of any of our rights necessary to practice duvelisib, each of which ((i) and (ii))  we refer 
to as a qualifying transaction, we are no longer obligated to pay Takeda any remaining milestone payments under the Takeda 
Agreement for the development, approval or commercialization of duvelisib. Additionally, upon execution of a qualifying 
transaction, our obligation to use diligent efforts to develop products under the Takeda Agreement is reduced from two products 
to one product. In return, we are obligated to pay Takeda 50% of all revenue arising from each qualifying transaction for 
duvelisib, subject to certain exceptions. We believe the Verastem Agreement constitutes a qualifying transaction. 

13. Organizational Restructuring 

In June 2016, we reported the top line data from DYNAMO, a registration-focused Phase 2 monotherapy study 
evaluating the efficacy and safety of duvelisib in patients with refractory indolent non-Hodgkin lymphoma, or iNHL. The study 
met its primary endpoint with an overall response rate of 46%, all of which were partial responses, among 129 patients with 
iNHL. On June 24, 2016, AbbVie delivered to us a written notice of the AbbVie Opt-Out.   

June 2016 Restructurings 

As a result of our discussions with AbbVie regarding our collaboration and the subsequent AbbVie Opt-Out, our Board 

of Directors approved a strategic restructuring in order to preserve our resources as we determine future strategic plans, which 
included significant employee headcount reductions during June 2016. We recognized $8.3 million and $4.5 million in total 
restructuring charges for the year ended December 31, 2016 in research and development expenses and general and 
administrative expenses, respectively.  

We continue to evaluate the lease for the facility that we currently occupy. See Note 11 for information regarding our 

facility lease termination at 780/790 Memorial Drive. If we pursue and successfully restructure the 784 Memorial Drive facility 
lease in 2017, we could potentially incur additional charges upon our exit from the space. Such potential future charges could 
include further impairments and lease exit payments related to our office space at 784 Memorial Drive in Cambridge, 
Massachusetts. At December 31, 2016, the accompanying consolidated balance sheets reflect the 784 Memorial Drive building 
and accumulated construction costs net of accumulated depreciation of $22.0 million and a total financing obligation of 
approximately $19.6 million. 

In June 2016, we reduced our employee headcount by approximately 66% compared to our employee headcount as of 

December 31, 2015. We have existing severance plans which outline contractual termination benefits. We recognized all 
contractual severance and benefits outlined in the plan when termination was probable and reasonably estimable in accordance 
with FASB ASC Topic 712, Compensation - Nonretirement Postemployment Benefits. 

Approximately $1.9 million of expense was recorded during the year ended December 31, 2016, related to the write-
off of prepaid expenses that were not expected to continue and other payments that were due as a result of early terminations. 

We identified and recorded the impairment of approximately $0.4 million in furniture and fixtures during the year 

ended December 31, 2016.  

In performing the recoverability test for the 780/790 Memorial Drive asset group, we concluded that the asset group 
was not recoverable. We recorded an impairment charge of $0.8 million related to 780 / 790 Memorial Drive assets, including 

105 

 
 
 
 
 
 
the related tenant improvement allowance (see Note 11), after comparing the fair value (using probability weighted scenarios 
with discounted cash flows) to the asset group’s carrying value, for the year ended December 31, 2016.  

In performing the recoverability test for the 784 Memorial Drive asset group, we concluded that the asset group was 
not recoverable. We had an independent appraisal performed for the 784 Memorial building and improvements. We concluded 
no impairment was needed as the fair market value (considering the cost approach, sales comparison approach and the income 
approach) exceeded the asset group’s carrying value. 

September 2016 Restructuring 

As a result of our progress on strategic initiatives with duvelisib, our Board of Directors approved further headcount 
reductions during September 2016.  The September 2016 restructuring reduced our employee headcount by approximately 4% 
compared to our employee headcount as of December 31, 2015. Included in the table below, we recognized $0.3 million and 
$0.2 million in total restructuring charges for the year ended December 31, 2016 in research and development expenses and 
general and administrative expenses, respectively, related to the September restructuring. 

October 2016 Restructuring 

  On October 28, 2016, our Board of Directors approved a strategic restructuring in connection with and subject to the 

entry into the Verastem Agreement. The restructuring included workforce reductions of 19 positions across the organization 
representing approximately 9% compared to our employee headcount as of December 31, 2015. Included in the table below, we 
recognized $2.6 million and $2.0 million in total restructuring charges for the year ended December 31, 2016 in research and 
development expenses and general and administrative expenses, respectively, related to the October restructuring. 

Summary Table 

The following table summarizes the impact of the 2016 restructuring activities on our operating expenses and 

payments for the year ended December 31, 2016 and the current liability remaining on our balance sheet as of December 31, 
2016, in thousands:    

Charges incurred 
during the year 
ended December 
31, 2016 

Amounts paid 
through December 
31, 2016 

Less non-cash 
charges during the 
year ended 
December 31, 
2016

Amounts accrued 
at December 31, 
2016 

(in thousands) 

Employee severance, benefits and 
related costs for work force 
reduction 
Long-lived asset impairment 

$ 

  $ 

17,960 
1,324    

9,516 

  $ 

—    

  $ 

1,552 
1,324    

Contract termination, prepaid 
expense write-offs and other 
related costs 
Total restructuring 

1,891 
21,175    $ 

821 
10,337    $ 

$ 

1,042 
3,918    $ 

6,892 
—  

28 
6,920  

During the year ended December 31, 2016, we recorded $21.2 million of expense related to restructuring activities of 

which $13.6 million is recorded in research and development expense and $7.6 million is recorded in general and 
administrative expense. We are obligated to continue to pay the remaining amounts accrued through the third quarter of 2017. 

14. Income Taxes 

We did not have any income tax expense for the year ended December 31, 2016. Our income tax expense of $0.3 
million and $0.2 million for the years ended December 31, 2015 and 2014, respectively, consisted primarily of current U.S. 
federal taxes.  

106 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Our income tax expense for the years ended December 31, 2016, 2015 and 2014 differed from the expected U.S. 

federal statutory income tax expense as set forth below: 

Years Ended December 31, 

2016 

2015 
(in thousands) 

2014 

Expected federal tax benefit 
Permanent differences 
State taxes, net of the deferred federal benefit 
Tax credit carryforwards 
Adjustments to deferred tax assets and deferred tax liabilities 
Alternative minimum tax 
Other 
Change in valuation allowance 

Income tax expense 

$ 

$ 

(10,234 )   $ 
1,749    
(1,589 )  
(37 )  
121    
—    
79    
9,911    

—     $ 

(43,534 )   $ 
2,263    
(6,762 )  
(2,735 )  
(1,267 )  
321    
29    
52,020    

335     $ 

(5,872) 
3,537 
(912) 
(9,510) 
776 
183 
79 
11,902 
183 

The significant components of our deferred tax assets and liabilities are as follows: 

Deferred tax assets (liabilities): 

Net operating loss carryforwards 
Tax credit carryforwards 
Deferred revenue 
Intangible assets 
Accrued expenses 
Stock-based compensation 
Other 
Valuation allowance 

Net deferred tax assets 

Years Ended December 31, 

2016 

2015 

(in thousands) 

178,125     $ 
40,051    
—    
32,199    
822    
11,974    
(377 )  
(262,794 )  

—     $ 

128,851  
40,014  
34,924  
34,710  
3,003  
12,172  
(794 ) 
(252,880 ) 
—  

$ 

$ 

We have recorded a valuation allowance against our deferred tax assets in each of the years ended December 31, 2016, 
2015 and 2014 because management believes that it is more likely than not that these assets will not be realized. The valuation 
allowance increased by approximately $9.9 million during the year ended December 31, 2016 primarily as a result of the 
increase in our unbenefited net operating loss deferred tax asset. The valuation allowance increased by approximately $52.0 
million during the year ended December 31, 2015 primarily as a result of unbenefited deferred tax assets such as deferred 
revenue and intangible assets. The valuation allowance increased by approximately $12.0 million during the year ended 
December 31, 2014 primarily as a result of increases in unbenefited deferred tax assets such as tax credits and intangible assets. 

Subject to the limitations described below, at December 31, 2016, we have cumulative net operating loss 

carryforwards of approximately $488.7 million and $369.2 million available to reduce federal and state taxable income, which 
expire through 2036, and have begun to expire and will continue to expire through 2036, respectively. In addition, we have 
cumulative federal and state tax credit carryforwards of $33.3 million and $10.2 million, respectively, available to reduce 
federal and state income taxes which expire through 2036 and 2031, respectively. The net operating loss carryforwards include 
approximately $22.1 million of deductions related to the exercise of stock options. This amount represents an excess tax benefit 
and has not been included in the gross deferred tax asset reflected for net operating losses nor the cumulative net operating loss 
carryforward disclosures above. Additionally, our net operating loss carryforwards and tax credit carryforwards are limited as a 
result of certain ownership changes, as defined under Sections 382 and 383 of the Internal Revenue Code. This limits the 
annual amount of these tax attributes that can be utilized to offset future taxable income or tax liabilities. The amount of the 
annual limitation is determined based on our value immediately prior to an ownership change. Subsequent ownership changes 

107 

 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
may affect the limitation in future years. The net operating losses and tax credit carryforwards that have and will expire unused 
in the future as a result of Section 382 and 383 limitations have been excluded from the amounts disclosed above. 

At December 31, 2016 and 2015, we had no unrecognized tax benefits. As of December 31, 2016, 2015 and 2014, we 
had no accrued interest or penalties related to uncertain tax positions and no amounts have been recognized in our consolidated 
statements of operations. We will recognize interest and penalties related to uncertain tax positions in income tax expense. 

For all years through December 31, 2016, we generated research credits but have not conducted a study to document 
the qualified activities. This study may result in an adjustment to our research and development credit carryforwards; however, 
until a study is completed and any adjustment is known, no amounts are being presented as an uncertain tax position. A full 
valuation allowance has been provided against our research and development credits and, if an adjustment is required, this 
adjustment would be offset by an adjustment to the deferred tax asset established for the research and development credit 
carryforwards and the valuation allowance. 

We file income tax returns in the U.S. federal, Massachusetts, and other state jurisdictions. The statute of limitations 
for assessment by the Internal Revenue Service, or IRS, and state tax authorities is closed for tax years prior to 2013, although 
carryforward attributes that were generated prior to tax year 2013 may still be adjusted upon examination by the IRS or state 
tax authorities if they either have been or will be used in a future period. 

15. Stockholders’ Equity 

Warrants 

On February 24, 2014, we entered into a facility agreement with affiliates of Deerfield Management Company, L.P., or 

Deerfield. In connection with the execution of the original facility agreement, we issued to Deerfield warrants to purchase an 
aggregate of 1,000,000 shares of common stock at an exercise price of $13.83 per share. The warrants have dividend rights to 
the same extent as if the warrants were exercised into shares of common stock. The warrants expire on the seventh anniversary 
of their issuance and contain certain limitations that prevent the holder from acquiring shares upon exercise of a warrant that 
would result in the number of shares beneficially owned by the holder exceeding 9.985% of the total number of shares of 
common stock then issued and outstanding. As of December 31, 2016, no warrants have been exercised.  

16. Defined Contribution Benefit Plan 

We sponsor a 401(k) retirement plan in which substantially all of our full-time employees are eligible to participate. 
Participants may contribute a percentage of their annual compensation to this plan, subject to statutory limitations. During the 
years ended December 31, 2016, 2015 and 2014, we matched 50% of the first 6% of participant contributions with shares of 
our common stock. Our matching contributions during the year ended December 31, 2016, 2015 and 2014 were $0.8 million, 
$0.9 million and $0.7 million, respectively. 

108 

 
 
 
 
 
 
 
 
 
17. Quarterly Financial Information (unaudited) 

Quarter Ended 
March 31, 2016 

Quarter Ended 
June 30, 2016 

Quarter Ended 
September 30, 2016 

Quarter Ended 
December 31, 2016 

Collaboration revenue 

Operating expenses: 

Research and development 

General and administrative 

Total operating expenses 

Gain on AbbVie Opt-Out (note 12) 

Income (loss) from operations 
Other income (expenses): 

Interest expense 

Investment and other income 

Total other income (expense) 

Income (loss) before income taxes 
Income taxes 

Net income (loss) 

Income (loss) per common share: 

Basic 

Diluted 

Weighted average number of common shares 
outstanding: 
Basic 

Diluted 

Collaboration revenue 

Operating expenses: 

Research and development 

General and administrative 

Total operating expenses 

Income (loss) from operations 
Other income (expenses): 

Interest expense 

Interest and investment income (loss) 

Total other income (expense) 

Income (loss) before income taxes 
Income taxes 

Net income (loss) 

Income (loss) per common share: 

Basic 

Diluted 

Weighted average number of common shares 
outstanding: 
Basic 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

(in thousands, except shares and per share amounts) 
—     $ 

9,467     $ 

9,256     $ 

39,188    
10,836    
50,024    
—    
(40,768 )  

(309 )  
413    
104    
(40,664 )  
—    

(40,664 )   $ 

(0.82 )   $ 

(0.82 )   $ 

52,947    
15,692    
68,639    
112,216    
53,044    

(307 )  
254    

(53 )  
52,991    
—    
52,991     $ 

1.05     $ 
1.05     $ 

12,814    
7,120    
19,934    
—    
(19,934 )  

(305 )  
741    
436    
(19,498 )  
—    

(19,498 )   $ 

(0.39 )   $ 

(0.39 )   $ 

—  

14,662  
8,571  
23,233  
—  
(23,233 ) 

(304 ) 
607  
303  
(22,930 ) 
—  

(22,930 ) 

(0.46 ) 

(0.46 ) 

49,339,888    
49,339,888    

49,437,062    
49,439,537    

49,583,776    
49,583,776    

50,099,153  
50,099,153  

Quarter Ended 
March 31, 2015 

Quarter Ended 
June 30, 2015 

Quarter Ended 
September 30, 2015 

Quarter Ended 
December 31, 2015 

(in thousands, except shares and per share amounts) 
90,743     $ 

4,880     $ 

4,363     $ 

88,428    
8,550    
96,978    
(92,615 )  

(647 )  

(40 )  

(687 )  

(93,302 )  
—    

34,062    
9,410    
43,472    
(38,592 )  

(99 )  
263    
164    
(38,428 )  
—    

(93,302 )   $ 

(38,428 )   $ 

(1.91 )   $ 

(1.91 )   $ 

(0.78 )   $ 

(0.78 )   $ 

37,729    
9,754    
47,483    
43,260    

(311 )  
75    
(236 )  
43,024    
(480 )  
42,544     $ 

0.85     $ 
0.84     $ 

9,080  

38,890  
9,351  
48,241  
(39,161 ) 

(311 ) 
137  
(174 ) 

(39,335 ) 
145  

(39,190 ) 

(0.80 ) 

(0.80 ) 

48,939,383    

49,076,031    

49,188,443    

49,227,905  

109 

 
 
 
 
 
 
 
   
   
   
 
   
   
   
 
   
   
   
 
   
   
   
 
 
   
   
   
 
 
 
 
 
 
   
   
   
 
   
   
   
 
   
   
   
 
   
   
   
 
 
Diluted 

48,939,383    

49,076,031    

49,764,910    

49,227,905  

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 

There have been no disagreements with our independent accountants on accounting and financial disclosure matters. 

Item 9A. Controls and Procedures 

Disclosure Controls and Procedures 

Our management, with the participation of our principal executive officer and principal financial officer, evaluated the 

effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities 
Exchange Act of 1934, as amended, or the Exchange Act) as of December 31, 2016. In designing and evaluating our disclosure 
controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, 
can provide only reasonable assurance of achieving their objectives, and our management necessarily applied its judgment in 
evaluating the cost-benefit relationship of possible controls and procedures. Based on this evaluation, our principal executive 
officer and principal financial officer concluded that as of December 31, 2016, our disclosure controls and procedures were 
(1) designed to ensure that material information relating to us is made known to our management including our principal 
executive officer and principal financial officer by others, particularly during the period in which this report was prepared and 
(2) effective, in that they provide reasonable assurance that information required to be disclosed by us in the reports we file or 
submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the U.S. 
Securities and Exchange Commission’s rules and forms. 

Management’s report on our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) 

under the Exchange Act) appears below. 

No change in our internal control over financial reporting occurred during the fiscal quarter ended December 31, 2016 

that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting. 

Internal Control Over Financial Reporting 

(a) Management’s Report on Internal Control Over Financial Reporting 

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. 

Internal control over financial reporting is defined in Rules 13a-15(f) and 15d-15(f) promulgated under the Exchange Act as a 
process designed by, or under the supervision of, our principal executive and principal financial officer and effected by our 
Board of Directors, management and other personnel, 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 and includes those policies and procedures that: 

•   Pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and 

dispositions of the assets of the company; 

•   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 

•   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. 

Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial 
statement preparation and presentation. Projections of any evaluation of effectiveness to future periods are subject to the risk 

110 

 
 
 
 
 
 
 
 
 
 
that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or 
procedures may deteriorate. 

Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2016. 

In making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the 
Treadway Commission, or COSO, in Internal Control—Integrated Framework (2013). Based on its assessment, management 
believes that, as of December 31, 2016, our internal control over financial reporting is effective based on those criteria. 

Our independent registered public accounting firm has issued an attestation report of our internal control over financial 

reporting. This report appears below. 

(b) Report of Independent Registered Public Accounting Firm 

The Board of Directors and Stockholders of 
Infinity Pharmaceuticals, Inc. 

We have audited Infinity Pharmaceuticals, Inc.’s internal control over financial reporting as of December 31, 2016, 

based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations 
of the Treadway Commission (2013 framework) (the COSO criteria). Infinity Pharmaceuticals, Inc.’s management is 
responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of 
internal control over financial reporting included in the accompanying Management’s Report on Internal Control Over 
Financial Reporting. Our responsibility is to express an opinion on the company’s internal control over financial reporting 
based on our audit. 

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United 

States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective 
internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding 
of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design 
and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we 
considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion. 

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 (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions 
and dispositions of the assets of the company; (2) 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 (3) 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. 

In our opinion, Infinity Pharmaceuticals, Inc. maintained, in all material respects, effective internal control over 

financial reporting as of December 31, 2016, based on the COSO criteria. 

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United 

States), the consolidated balance sheets of Infinity Pharmaceuticals, Inc. as of December 31, 2016 and 2015, and the related 

111 

 
 
 
 
 
 
 
 
 
 
 
 
consolidated statements of operations and comprehensive loss, stockholders’ equity, and cash flows for each of the three years 
in the period ended December 31, 2016 of Infinity Pharmaceuticals, Inc. and our report dated March 14, 2017 expressed an 
unqualified opinion thereon. 

/s/    ERNST & YOUNG LLP 

Boston, Massachusetts 
March 14, 2017  

(c) Changes in Internal Control Over Financial Reporting 

No change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the 

Exchange Act) occurred during the fiscal year ended December 31, 2016 that has materially affected, or is reasonably likely to 
materially affect, our internal control over financial reporting. 

Item 9B. Other Information 

On March 8, 2017, the Compensation Committee of our Board of Directors approved an amendment to our previously 
disclosed Supplemental Severance Program for our executive officers.  The Supplemental Severance Program was designed to 
supplement the cash severance for which each executive officer would be eligible under our previously disclosed 2013 
Executive Severance Benefits Program (the “2013 Plan”). Under the amended Supplemental Severance Program, each 
executive officer is eligible to receive a cash payment equal to one week of such officer’s base salary for each week such 
officer was employed by us between September 30, 2016 and July 1, 2017 with such payment to occur upon the earlier of (i) 
July 1, 2017, or (ii) the termination by us of such executive officer’s employment with us other than for Cause (as defined in 
the 2013 Plan).  The amended Supplemental Severance program is identical to a program that was previously approved for all 
our non-executive employees. 

Item 10. Directors, Executive Officers and Corporate Governance 

PART III 

The sections titled “Proposal 1—Election of Directors,” “Board and Committee Meetings,” “Section 16(a) Beneficial 

Ownership Reporting Compliance” and “Corporate Governance Guidelines; Code of Conduct and Ethics” appearing in the 
definitive proxy statement we will file in connection with our Annual Meeting of Stockholders to be held on May 25, 2017 are 
incorporated herein by reference. The information required by this item relating to executive officers may be found in Part I, 
Item 1 of this report under the heading “Business—Executive Officers.” 

Item 11. Executive Compensation 

The section titled “Compensation of Executive Officers” appearing in the definitive proxy statement we will file in 

connection with our Annual Meeting of Stockholders to be held on May 25, 2017 is incorporated herein by reference. 

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

The sections titled “Stock Ownership of Certain Beneficial Owners and Management” and “Securities Authorized for 
Issuance under Equity Compensation Plans” appearing in the definitive proxy statement we will file in connection with our 
Annual Meeting of Stockholders to be held on May 25, 2017 are incorporated herein by reference. 

112 

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

The sections titled “Transactions with Related Persons,” “Policies and Procedures for Related Persons Transactions,” 

and “Determination of Independence” appearing in the definitive proxy statement we will file in connection with our Annual 
Meeting of Stockholders to be held on May 25, 2017 are incorporated herein by reference. 

Item 14. Principal Accounting Fees and Services 

The section titled “Audit Fees” appearing in the definitive proxy statement we will file in connection with our Annual 

Meeting of Stockholders to be held on May 25, 2017 is incorporated herein by reference. 

Item 15. Exhibits, Financial Statement Schedules 

(a)(1) Financial Statements 

PART IV 

The financial statements listed below are filed as a part of this Annual Report on Form 10-K. 

Report of Independent Registered Public Accounting Firm 
Consolidated Balance Sheets at December 31, 2016 and 2015 

Consolidated Statements of Operations and Comprehensive Loss for the years ended December  31, 2016, 2015 
and 2014 
Consolidated Statements of Cash Flows for the years ended December 31, 2016, 2015 and 2014 

Consolidated Statements of Stockholders’ Equity for the years ended December  31, 2016, 2015 and 2014 

Notes to Consolidated Financial Statements 

(a)(2) Financial Statement Schedules 

Page number 

80 

81 

82 

83 

84 

86 

Financial statement schedules have been omitted because of the absence of conditions under which they are required 

or because the required information, where material, is shown in the financial statements or notes thereto. 

(a)(3) Exhibits 

The Exhibits listed in the Exhibit Index are filed as a part of this Annual Report on Form 10-K. 

Item 16. Form 10-K Summary 

None. 

113 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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. 

SIGNATURES 

Date: March 14, 2017 

INFINITY PHARMACEUTICALS, INC. 

By: 

/s/    ADELENE Q. PERKINS 
Adelene Q. Perkins 
Chief Executive Officer 
(Principal Executive Officer) 

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/    ADELENE Q. PERKINS 
Adelene Q. Perkins 

Chief Executive Officer; Chair of the 
Board of Directors 
(Principal Executive Officer) 

March 14, 2017 

March 14, 2017 

March 7, 2017 

March 10, 2017 

March 9, 2017 

March 14, 2017 

March 7, 2017 

March 14, 2017 

/s/    LAWRENCE E. BLOCH, M.D., J.D. 
Lawrence E. Bloch, M.D., J.D. 

President; Treasurer 

(Principal Financial Officer, Principal 
Accounting Officer) 

/s/    JOSÉ BASELGA, M.D., PH.D. 
José Baselga, M.D., Ph.D. 

/s/    JEFFREY BERKOWITZ, J.D. 
Jeffrey Berkowitz, J.D. 

/s/    ANTHONY B. EVNIN, PH.D. 
Anthony B. Evnin, Ph.D. 

/s/    NORMAN C. SELBY 
Norman C. Selby 

/s/    IAN F. SMITH 
Ian F. Smith 

/s/    MICHAEL C. VENUTI, PH.D. 
Michael C. Venuti, Ph.D. 

Director 

Director 

Director 

Director 

Director 

Director 

114 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT INDEX 

Exhibit No. 

  Description 

3.1 
3.2 

4.1 

  Restated Certificate of Incorporation of the Registrant. 
  Amended and Restated Bylaws of the Registrant. 

  Form of Common Stock Certificate. 

Collaboration Agreements 
10.1† 

  Amended and Restated Development and License 
Agreement, dated as of December 24, 2012, by and 
between the Registrant and Intellikine, LLC. 

10.2 

10.3 

10.4† 

10.5 

10.6 

  Amendment to Amended and Restated Development and 
License Agreement, dated as of dated July 29, 2014, by 
and between Infinity Pharmaceuticals, Inc. and 
Intellikine LLC. 

  Amendment No. 2 to Amended and Restated 
Development and License Agreement, dated as of dated 
September 27, 2016, by and between Infinity 
Pharmaceuticals, Inc. and Intellikine LLC. 
  Amended and Restated License Agreement, dated as of 
November 1, 2016, by and between the Registrant and 
Verastem, Inc. 
  Termination and Revised Relationship Agreement, dated 
as of July 17, 2012, between the Registrant and 
Mundipharma International Corporation Limited. 

  Termination and Revised Relationship Agreement, dated 
as of July 17, 2012, between the Registrant and Purdue 
Pharmaceutical Products L.P. 

Financing Agreements 
10.7 

  Form of Warrant to Purchase Common Stock of Infinity 
Pharmaceuticals, Inc., issued to the Deerfield Entities, 
together with a schedule of holders and amounts (issued 
February 24, 2014). 

Leases 
10.8 

  Lease Agreement, dated as of September 25, 2014, 
between Infinity Pharmaceuticals, Inc. and BHX, LLC, 
as trustee of 784 Realty Trust. 

Incorporated by Reference 

SEC 
Filing 
date 

Exhibit 
Number 

8/9/2007   
  3/17/2009   

  3/14/2008   

3.1      
3.1      
4.1      

Filed 
with 
this 
10-K

Form 

  10-Q 
  8-K 

  10-K 

10-K 

3/5/2013   

10.4 

10-Q 

  11/10/2014   

10.1 

10-Q 

  11/9/2016   

10.1 

X 

8-K 

  7/19/2012   

10.2 

8-K 

  7/19/2012   

10.3 

10-Q 

5/6/2014   

10.2 

10-Q 

  11/10/2014   

10.4 

115 

 
 
 
   
 
 
 
 
 
 
   
   
   
   
 
 
 
   
 
 
   
 
 
   
 
 
   
   
 
 
 
   
 
 
   
   
   
   
   
 
 
 
   
   
   
   
   
 
 
   
 
 
 
 
Exhibit No. 

  Description 

10.9 

10.10 

10.11 

10.12 

10.13 

  Lease Agreement dated July 2, 2002 between IDI and 
ARE-770/784/790 Memorial Drive LLC (the “Lease”), 
as amended by First Amendment to Lease dated 
March 25, 2003, Second Amendment to Lease dated 
April 30, 2003, Third Amendment to Lease dated 
October 30, 2003 and Fourth Amendment to Lease dated 
December 15, 2003. 

  Fifth Amendment to Lease dated July 8, 2011 between 
the Registrant and ARE-770/784/790 Memorial Drive 
LLC. 

  Sixth Amendment to Lease dated July 8, 2012 between 
the Registrant and ARE-770/784/790 Memorial Drive 
LLC. 

  Seventh Amendment to Lease, dated as of November 6, 
2014, between Infinity Pharmaceuticals, Inc. and ARE-
770/784/790 Memorial Drive, LLC. 

  Agreement for Termination of Lease and Voluntary 
Surrender of Premises dated October 31, 2016 between 
the Registrant and ARE-770/784/790 Memorial Drive, 
LLC 

Equity Plans 
10.14* 

10.15* 

10.16* 

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* 

10.30* 

  2000 Stock Incentive Plan. 
  Amendment No. 1 to 2000 Stock Incentive Plan; 
Amendment No. 2 to 2000 Stock Incentive Plan; 
Amendment No. 3 to 2000 Stock Incentive Plan. 

  Amendment No. 4 to 2000 Stock Incentive Plan. 

  Amendment No. 5 to 2000 Stock Incentive Plan. 

  Form of Incentive Stock Option Agreement under 2000 
Stock Incentive Plan. 
  Form of Nonstatutory Stock Option Agreement under 
2000 Stock Incentive Plan. 
  2010 Stock Incentive Plan. 

  Form of Incentive Stock Option Agreement under 2010 
Stock Incentive Plan. 
  Form of Nonstatutory Stock Option Agreement under 
2010 Stock Incentive Plan. 
  Form of Restricted Stock Agreement under 2010 Stock 
Incentive Plan 
  Form of Nonstatutory Stock Option Agreement for 
Inducement Grant Pursuant to NASDAQ Stock Market 
Rule 5635(c)(4) 

  Amendment No. 1 to 2010 Stock Incentive Plan. 

  Amendment No. 2 to 2010 Stock Incentive Plan. 

  Amendment No. 3 to 2010 Stock Incentive Plan. 

  Amendment No. 4 to 2010 Stock Incentive Plan. 

  Amendment No. 5 to 2010 Stock Incentive Plan. 

  2013 Employee Stock Purchase Plan, as amended. 

116 

Incorporated by Reference 

Form 

SEC 
Filing 
date 

Exhibit 
Number 

Filed 
with 
this 
10-K

8-K 

  9/18/2006   

10.36 

10-Q 

8/9/2011   

10.1 

10-Q 

8/7/2012   

10.2 

10-Q 

  11/10/2014   

10.5 

  S-1 

5/9/2000   

10.59      

  8-K 

  10-Q 

  S-8 

  9/18/2006   

8/9/2007   

  5/23/2008   

10.32 
10.1      
99.4      

8-K 

  9/18/2006   

10.33 

8-K 

  8-K 

8-K 

8-K 

  8-K 

  8-K 

  8-K 

  8-K 

  8-K 

  8-K 

  9/18/2006   

  5/28/2010   

10.34 
10.1      

  5/28/2010   

10.2 

  5/28/2010   

10.3 

  12/14/2010   

  5/18/2012   

  6/13/2013   

  6/13/2013   

  6/16/2015   

  6/13/2013   

99.2      
99.1      
10.1      
10.1      
10.1      
99.1      

X 

X 

X 

 
 
   
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
   
 
 
   
 
 
   
   
 
 
 
   
 
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
   
 
 
 
   
   
 
 
 
Incorporated by Reference 

Form 

SEC 
Filing 
date 

Exhibit 
Number 

Filed 
with 
this 
10-K

8-K 

8-K 

8-K 

  7/25/2012   

10.1 

  9/18/2006   

10.11 

  10/30/2007   

99.5 

  Severance Agreement between the Registrant and 
William Bertrand, dated June 28, 2016. 
  Severance Agreement between the Registrant and Sujay 
Kango, dated October 31, 2016. 
  Severance Agreement between the Registrant and Julian 
Adams, dated December 30, 2016. 
  Infinity Pharmaceuticals, Inc. Executive Severance 
Benefits Plan effective February 6, 2013. 

8-K 

  2/12/2013   

10.1 

Exhibit No. 

  Description 

Agreements With Executive Officers 
10.31* 

  Offer Letter between the Registrant and Lawrence E. 
Bloch, M.D., J.D. dated May 15, 2012. 
  Offer Letter between IDI and Adelene Perkins dated as 
of February 6, 2002. 
  Amendment to Offer Letter between IDI and Adelene 
Perkins dated as of October 25, 2007. 
  Offer Letter between the Registrant and Seth A. Tasker, 
J.D. dated February 22, 2008 
  Employment Retention Incentive Package Letter 
Agreement between the Registrant and Seth Tasker, J.D. 
dated July 1, 2016 
  Offer Letter between the Registrant and Jeffrey Kutok, 
M.D., Ph.D. dated October 26, 2010 
  Employment Retention Incentive Package Letter 
Agreement between the Registrant and Jeffery Kutok, 
M.D., Ph.D. dated July 1, 2016 

10.32* 

10.33* 

10.34* 

10.35* 

10.36* 

10.37* 

10.38* 

10.39* 

10.40* 

10.41* 

Subsidiaries 
21.1 

  Subsidiaries of the Registrant. Filed herewith. 

Consent 
23.1 

  Consent of Ernst & Young LLP, Independent Registered 
Public Accounting Firm. Filed herewith. 

Certifications 
31.1 

  Certification of principal executive officer pursuant to 
Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act 
of 1934, as amended. Filed herewith. 

31.2 

32.1 

32.2 

  Certification of principal financial officer pursuant to 
Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act 
of 1934, as amended. Filed herewith. 
  Statement of principal executive officer pursuant to 18 
U.S.C. §1350, as adopted pursuant to Section 906 of the 
Sarbanes-Oxley Act of 2002. Filed herewith. 

Statement of principal financial officer pursuant to 18 
U.S.C. §1350, as adopted pursuant to Section 906 of the 
Sarbanes-Oxley Act of 2002. Filed herewith. 

117 

X 

X 

X 

X 

X 

X 

X 

X 

X 

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X 

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101 

* 

† 

The following materials from the Registrant’s Annual 
Report on Form 10-K for the year ended December 31, 
2016, formatted in XBRL (eXtensible Business 
Reporting Language): (i) the Consolidated Balance 
Sheets, (ii) the Consolidated Statements of Operations 
and Comprehensive Loss, (iii) the Consolidated 
Statements of Cash Flows, (iv) the Consolidated 
Statements of Stockholders’ Equity, and (v) Notes to 
Consolidated Financial Statements. 

X 

Indicates management contract or compensatory plan 

Confidential treatment has been requested and/or granted as to certain portions, which portions have been filed 
separately with the Securities and Exchange Commission. 

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This report contains forward-looking statements regarding our expectations with respect to our plans and strategy for our business, the possible

achievement of discovery, development, and regulatory goals and milestones in 2017 and beyond, our future discovery and development efforts, our

collaborations, and our future operating results and financial position. We often use words such as “anticipate,” “believe,” “estimate,” “expect,”

“intend,” “may,” “plan,” “predict,” “project,” “target,” “potential,” “will,” “would,” “could,” “should,” “continue,” and other words and terms of similar

meaning to help identify forward-looking statements, although not all forward-looking statements contain these identifying words. You also can

identify these forward-looking statements by the fact that they do not relate strictly to historical or current facts. There are a number of important

risks and uncertainties that could cause actual results or events to differ materially from those indicated by forward-looking statements made herein.

These risks and uncertainties include those inherent in pharmaceutical research and development, such as adverse results in our drug discovery and

clinical development activities, decisions made by the U.S. Food and Drug Administration, or FDA, and other regulatory authorities with respect to

the development and commercialization of our product candidates, our ability to obtain, maintain and enforce intellectual property rights for our

product candidates, our dependence on our alliance partners, competition, our ability to obtain any necessary financing to conduct our planned

activities and other risk factors. Please refer to the section entitled “Risk Factors” in Part I of the accompanying annual report on Form 10-K for a

description of these risks and uncertainties. Unless required by law, we do not undertake any obligation to update any forward-looking statements.

IPI-549: A New Approach to Targeting the Tumor 
Microenvironment by Selectively Inhibiting PI3K-Gamma

We are developing IPI-549, an oral, once-daily product candidate that selectively inhibits PI3K-gamma. 

Selective PI3K-gamma inhibition represents a unique and potentially transformative approach within 

immuno-oncology, and IPI-549 has the potential to be a fi rst-in-class therapy.  Preclinical research 

demonstrates that IPI-549 works by reprogramming key cells (called macrophages) within the tumor 

JEFFERY KUTOK, M.D., Ph.D.

microenvironment from a pro-tumor phenotype to an anti-tumor phenotype, ultimately leading to the 

Chief Scientifi c Offi  cer

activation of T cells that can attack cancer cells. 

Mechanism of action for IPI-549 

based on preclinical research 

published in Nature1,2: Blockade 

of PI3K-gamma signaling by 

treatment with IPI-549 results in a 

reprogramming of M2, pro-tumor 

macrophages to M1, anti-tumor 

macrophages and increases the 

activity of anti-tumor T cells 

which attack the tumor.

Tumor 
Cells

M2 macrophages 
(pro-tumor)

Suppressed
T cells

PI3K-gamma signaling in macrophages within the tumor microenvironment 
maintains macrophages in the M2, or pro-tumor phenotype, which 
suppress anti-tumor T cells and enable tumor growth.

Progressing Our Phase 1 Study in Patients with 
Advanced Solid Tumors

We are evaluating IPI-549 as a monotherapy and in combination with Opdivo in a Phase 1 study in patients 

with advanced solid tumors and are very pleased with the momentum of this trial. In April, at the American 

Association for Cancer Research (AACR) Annual Meeting 2017, we reported encouraging monotherapy 

and combination data from the dose-escalation modules of the study. The data demonstrated that IPI-549 

CLAUDIO DANSKY ULLMANN, M.D.

was well tolerated as a monotherapy and in combination with Opdivo, and the pharmacokinetic and 

Senior Viice President, 
Clinical Development

pharmacodynamic properties of IPI-549 monotherapy treatment were favorable and support once-daily 

dosing.4 Demonstrating the tolerability of monotherapy and combination treatment represents key de-risking 

events for the program and will enable us to more fully evaluate IPI-549 in disease-specifi c expansion cohorts.

We are on track to initiate the expansion cohorts in the second half of 2017, which will generate 

additional clinical data from monotherapy treatment as well as from the combination of IPI-549 and 

Opdivo in specifi c types of solid tumors, including non-small cell lung cancer (NSCLC), melanoma 

and head and neck cancer (HNSCC). Patients enrolled in the disease-specifi c cohorts must have not 

responded or developed resistance to checkpoint therapy, representing a direct test of whether IPI-549 

can overcome checkpoint resistance as demonstrated in preclinical models and published in Nature.2 

Additionally, pre-treatment and on-treatment biopsies are a mandatory component of the expansion 

Infinity is a clinical-stage biopharmaceutical company focused on 
developing novel anti-cancer therapies. We are advancing a unique 
approach to treating cancer with IPI-549, a potentially transformative, 
first-in-class therapy for the treatment of solid tumors. 

EXECUTIVE LEADERSHIP

Lawrence Bloch, M.D., J.D.
President

Claudio Dansky Ullmann, M.D.
Senior Vice President, 
Clinical Development

Jeff ery Kutok, M.D., Ph.D.
Chief Scientifi c Offi  cer

Adelene Perkins
Chair and Chief Executive Offi  cer 

Seth Tasker
Vice President, General Counsel 
and Secretary

BOARD OF DIRECTORS

José Baselga, M.D., Ph.D.
Physician-in-Chief, 
Memorial Sloan Kettering Cancer Center

Jeff rey Berkowitz
Executive Vice President, 
Optum, Inc.

Anthony Evnin, Ph.D.
Partner, Venrock Associates

Michael Kauff man, M.D., Ph.D.
Chief Executive Offi  cer 
Karyopharm Therapeutics

Adelene Perkins
Chair and Chief Executive Offi  cer,
Infi nity Pharmaceuticals, Inc.

Norman Selby
Chairman, RealEndpoints

Ian Smith
Executive Vice President, 
Chief Operating Offi  cer and 
Chief Financial Offi  cer, 
Vertex Pharmaceuticals Incorporated

Michael Venuti, Ph.D.
Industry Consultant

Footnotes:

ANNUAL MEETING
The Annual Meeting of Stockholders will be held at 
8:30 a.m. EDT on May 25, 2017, at
Infi nity Pharmaceuticals, Inc.
784 Memorial Drive
Cambridge, MA 02139

INDEPENDENT AUDITORS
Ernst & Young LLP; Boston, MA

INVESTOR INQUIRIES
617.453.1015
irpr_info@infi .com

STOCK LISTING
NASDAQ: INFI

TRANSFER AGENT
The transfer agent is responsible, among other things, 
for handling stockholder questions regarding lost stock 
certifi cates, address changes, including duplicate mailings, 
and changes in ownership or name in which shares are held. 
These requests may be directed to the transfer agent at the 
following address:

American Stock Transfer & Trust Company, LLC
6201 15th Avenue
Brooklyn, NY 11219
www.amstock.com

SEC FORM 10-K
A copy of Infi nity’s annual report on Form 10-K fi led with the 
Securities and Exchange Commission is available free of charge 
from the company’s Investor Relations Department by calling 
617.453.1015, sending a request by email to irpr_info@infi .com 
or sending a written request to:

Investor Relations
Infi nity Pharmaceuticals, Inc.
784 Memorial Drive
Cambridge, MA 02139

1  Kaneda M., Messer K., Ralainirina N., Li H., et al. PI3Kγ is a molecular switch that controls immune suppression. Nature, 2016 Nov;539:437-442.

2  De Henau O., Rausch M., Winkler D., Campesato L., et al. Overcoming resistance to checkpoint blockade therapy by targeting PI3Kγ in myeloid cells. Nature, 2016 Nov;539:443-447.

3  OPDIVO® is a registered trademark of Bristol-Myers Squibb. 

4  Tolcher A., Hong D., Sullivan R., Mier J., et al. A Phase 1/1b, fi rst-in-human study of IPI-549, a PI3K-γ inhibitor, as monotherapy and in combination with nivolumab in patients with advanced solid tumors. 

  Abstract #CT089. Presented at AACR Annual Meeting 2017.

5  Clinicaltrials.gov Identifi er NCT02637531

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Developing a Unique Approach to Treating Cancer
Annual Report 2016

Infi nity Pharmaceuticals, Inc.
784 Memorial Drive
Cambridge, MA 02139
www.infi .com

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