On February 24, 2020 Epizyme, Inc. (Nasdaq: EPZM), a fully integrated, commercial-stage biopharmaceutical company developing novel epigenetic therapies, provided business and pipeline updates and reported fourth quarter and full year 2019 financial results (Press release, Epizyme, FEB 24, 2020, View Source [SID1234554635]).
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"We began 2020 with the most meaningful milestone for the company to date – the accelerated approval of TAZVERIK, making it the first and only commercially available EZH2 inhibitor and the only approved product specifically indicated for epithelioid sarcoma patients. We executed a strong start to our commercial launch, in which we made TAZVERIK available to patients within one week of approval," said Robert Bazemore, president and chief executive officer of Epizyme. "Following the acceptance of our sNDA filing for TAZVERIK for follicular lymphoma, we are preparing to quickly address the more prevalent FL patient population, if approved. In parallel, we are continuing our in-house and clinical collaboration efforts to demonstrate the full potential of tazemetostat for a range of cancer indications, with 12 trials underway and four more planned for initiation this year, making for a robust development expansion program."
Recent Progress
TAZVERIK Commercial Launch Underway in Epithelioid Sarcoma (ES) and Added to NCCN Clinical Practice Guidelines: TAZVERIK became commercially available to patients on February 1, 2020, following its accelerated approval on January 23, 2020 for the treatment of adults and pediatric patients aged 16 years and older with metastatic or locally advanced ES not eligible for complete resection. The approval was based on overall response rate and duration of response observed in a Phase 2 clinical trial. In addition, the National Comprehensive Cancer Network has updated its Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Soft Tissue Sarcoma to include TAZVERIK as a recommended category 2A treatment for metastatic or locally advanced ES. The NCCN Guidelines are the recognized clinical standard for cancer care by U.S. healthcare providers and payers, and are maintained by a committee of expert physicians from leading U.S. cancer centers.
TAZVERIK sNDA Submission for Follicular Lymphoma (FL) Accepted for Filing with Priority Review: The U.S. Food and Drug Administration (FDA) has accepted the company’s supplemental NDA (sNDA) for filing for the accelerated approval of TAZVERIK for a proposed indication of patients with relapsed or refractory FL who have received at least two prior lines of systemic therapy. The FDA granted Priority Review for the sNDA and has set a Prescription Drug User Fee Act (PDUFA) target action date of June 18, 2020. The submission is based primarily on Phase 2 data, which demonstrated clinical benefit as assessed by both investigators and an Independent Review Committee (IRC) and a generally well-tolerated profile in this patient population, as presented at the 2019 American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting.
Exercise of $50 Million Put Option with Royalty Pharma Supports Runway into at least 2022: Pursuant to the terms of its agreements with Royalty Pharma and Pharmakon Advisors in January 2020, Epizyme exercised its option to sell $50 million of its common stock to Royalty Pharma. The cash, cash equivalents and marketable securities as of December 31, 2019, together with the $50 million raised from the exercise of the put option, allowed the company to start 2020 with approximately $431 million, which will fund the current operating runway into at least 2022.
2020 Company Priorities
Epizyme has outlined the following key milestones for 2020:
Epithelioid Sarcoma
Optimize the commercial launch of TAZVERIK for ES to seamlessly expand to the FL opportunity, if approved;
Complete the safety portion of the ongoing global, Phase 1b/3 confirmatory trial assessing TAZVERIK in combination with doxorubicin compared with doxorubicin plus placebo as a front-line treatment for ES, and advance into the efficacy portion of the trial.
Follicular Lymphoma
Gain FDA approval for and launch TAZVERIK for patients in the U.S. with relapsed or refractory FL who have received at least two prior lines of systemic therapy;
Complete the safety portion of the ongoing global Phase 1b/3 confirmatory trial assessing TAZVERIK in combination with "R2" (Revlimid plus Rituximab) compared with R2 plus placebo in the second-line treatment setting; and advance into the efficacy portion of the trial;
Expand clinical investigation of tazemetostat in combination with R-CHOP in the high-risk front-line treatment setting for patients with FL; and
Support the investigator-sponsored studies assessing tazemetostat in combination with rituximab, venetoclax and BTK inhibitors in the third-line and later FL treatment setting.
Additional Indications
Epizyme plans to explore the utility of tazemetostat in additional indications, as a monotherapy and in combinations, through in-house efforts, investigator-sponsored studies and clinical collaborations. Based on scientific hypotheses and unmet need, these areas include:
Hematological malignancies, such as lymphomas and other b-cell malignancies, in which EZH2 plays an important role in B cell biology;
Mutationally defined solid tumors, such as chordoma, melanoma and tumors with a SWI/SNF alteration or other mutations;
Metastatic castration-resistant prostate cancer;
Solid tumors that are resistant to chemotherapy or PARP inhibitors, such as triple negative breast, small cell lung and ovarian cancers, as well as mesothelioma; and
Solid tumors in which EHZ2 inhibition can augment the response to immune-oncology treatments.
Preclinical Pipeline
Pursue additional development candidates for its preclinical programs.
Financial Guidance
Based on its current operating plans, Epizyme expects its current cash runway to extend into at least 2022. Additionally, the company expects its GAAP operating expenses for 2020 to be between $300 and $330 million inclusive of the milestones due to Eisai for the FDA approval of TAVERIK for epithelioid sarcoma and for follicular lymphoma, if approved.
Fourth Quarter and Full Year 2019 Financial Results
Cash Position: Cash, cash equivalents and marketable securities were $381.1 million as of December 31, 2019, as compared to $240.3 million as of December 31, 2018.
Revenue: Collaboration revenue for the fourth quarter of 2019 was $4.3 million and $23.8 million for the full year ended December 31, 2019, compared to collaboration revenue of $9.7 million for the fourth quarter of 2018 and $21.7 million for the full year ended December 31, 2018. The increase reflects the recognition of revenue for services performed under the company’s multi-target research collaboration with Boehringer Ingelheim offset by development milestones with GlaxoSmithKline achieved in 2018 for its PRMT1 and PRMT 5 inhibitors, which were invented at Epizyme.
R&D Expenses: Research and development (R&D) expenses were $38.3 million for the fourth quarter of 2019 and $132.6 million for the full year ended December 31, 2019, compared to $21.8 million for the fourth quarter of 2018 and $105.8 million for the full year ended December 31, 2018. The increase is due to the initiation of the global confirmatory trials in ES and FL and early expansion of the tazemetostat program into new indications and combinations. The primary driver of the increase in R&D expenses for 2019 was the expense of $20 million in milestones paid to Eisai for the ES and FL NDA submissions. These milestones were funded through the loan facility provided by Pharmakon.
G&A Expenses: General and administrative (G&A) expenses were $23.5 million for the fourth quarter of 2019 and $68.3 million for the full year ended December 31, 2019, compared to $12.2 million for the fourth quarter of 2018 and $44.0 million for the full year ended December 31, 2018. G&A expenses for 2019 included the buildout of the infrastructure to support the launch and commercialization of TAZVERIK for the ES indication, as well as initial expansion to prepare for FL commercialization in the US.
Net Loss Attributable to Common Stockholders: Net loss attributable to common stockholders was $56.4 million, or $0.59 per share, for the fourth quarter of 2019 and $173.2 million, or $1.93 per share, for the full year ended December 31, 2019, compared to $22.9 million, or $0.29 per share, for the fourth quarter of 2018 and $123.6 million, or $1.72 per share, for the full year ended December 31, 2018.
Conference Call Information
Epizyme will host a conference call today, Feb. 24, at 8:30 a.m. ET. To participate in the conference call, please dial (877) 844-6886 (domestic) or (970) 315-0315 (international) and refer to conference ID 9045277. A live webcast and slides will be available in the investor section of the company’s website at www.epizyme.com, and will be archived for 60 days following the call and presentation.
About TAZVERIK
TAZVERIK (tazemetostat) is the first EZH2 inhibitor approved by the U.S. Food and Drug Administration (FDA). TAZVERIK is an enhancer of zeste homolog 2 (EZH2) methyltransferase inhibitor indicated for the treatment of adults and pediatric patients aged 16 years and older with metastatic or locally advanced epithelioid sarcoma who are not eligible for complete resection. This indication is approved under accelerated approval based on overall response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s). For more information, visit TAZVERIK.com.