On December 28, 2020 Myovant Sciences (NYSE: MYOV) and Pfizer Inc. (NYSE: PFE) reported a collaboration to develop and commercialize relugolix – a once-daily, oral gonadotropin-releasing hormone (GnRH) receptor antagonist – in oncology and women’s health in the U.S. and Canada (Press release, Myovant Sciences, DEC 28, 2020, View Source [SID1234573282]). Pfizer will also receive an exclusive option to commercialize relugolix in oncology outside the U.S. and Canada, excluding certain Asian countries.
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"We are thrilled to partner with Pfizer to unlock the full potential of ORGOVYX in advanced prostate cancer and relugolix combination tablet in uterine fibroids and endometriosis, advancing our mission to redefine care for women and for men," said Lynn Seely, M.D., Chief Executive Officer, Myovant Sciences, Inc. "Pfizer is the ideal partner for Myovant given its impressive capabilities and track record across both oncology and women’s health. This transformative collaboration will significantly strengthen the upcoming launch of ORGOVYX and the potential launches of relugolix combination tablet in women’s health, while substantially enhancing our financial position and enabling us to expand our pipeline of potential new medicines."
Under the terms of the agreement, Myovant and Pfizer will jointly develop and commercialize ORGOVYX (relugolix) in advanced prostate cancer and, if approved, relugolix combination tablet (relugolix 40 mg, estradiol 1.0 mg, and norethindrone acetate 0.5 mg) in women’s health in the U.S. and Canada. Myovant and Pfizer will begin co-promoting ORGOVYX for advanced prostate cancer in early 2021. Myovant and Pfizer will equally share profits and certain expenses for ORGOVYX and relugolix combination tablet with Myovant recording revenues. Myovant will remain responsible for regulatory interactions and drug supply and continue to lead clinical development for relugolix combination tablet. Myovant will receive up to $4.2 billion, including an upfront payment of $650 million, $200 million in potential regulatory milestones for U.S. Food and Drug Administration (FDA) approvals for relugolix combination tablet in women’s health, and tiered sales milestones upon reaching certain thresholds up to $2.5 billion in net sales for prostate cancer and also for the combined women’s health indications. If Pfizer exercises the option to commercialize relugolix in oncology outside of the U.S. and Canada, excluding certain Asian countries, Myovant will receive $50 million and be entitled to receive double-digit royalties on sales.
"We are excited to join forces with Myovant and combine our capabilities to bring ORGOVYX to patients with advanced prostate cancer," said Andy Schmeltz, Global President, Pfizer Oncology. "This strategic collaboration builds on our leadership in serving prostate cancer patients in the U.S. and aligns with our goal to deliver more breakthroughs across the prostate cancer treatment paradigm."
"There continues to be a high unmet need among the millions of women who experience the common and debilitating symptoms associated with uterine fibroids and endometriosis," said Nick Lagunowich, Global President, Pfizer Internal Medicine. "We believe our deep heritage and leadership in women’s health combined with our experienced women’s health field force will enable us to maximize these opportunities with Myovant, potentially bringing valuable new treatment options to these women."
The FDA approved ORGOVYX on December 18, 2020 for the treatment of adult patients with advanced prostate cancer. ORGOVYX is the first and only oral GnRH antagonist for men with advanced prostate cancer. Relugolix combination tablet is currently under regulatory review by the FDA for women with uterine fibroids, with a target action date of June 1, 2021. Relugolix combination tablet is also under development for women with endometriosis, with a New Drug Application submission anticipated in the first half of 2021.
Myovant Sciences Conference Call
Myovant will hold a webcast and conference call at 8:30 a.m. Eastern Time / 5:30 a.m. Pacific Time today, December 28, 2020. Investors and the general public may access a live webcast of the call by visiting the investor relations page of Myovant’s website at investors.myovant.com. Institutional investors and analysts may also participate in the conference call by dialing 1-800-532-3746 in the U.S. or +1-470-495-9166 from outside the U.S.
The webcast will be archived on Myovant’s Investor Relations website following the call.
About Relugolix
Relugolix is a once-daily, oral gonadotropin-releasing hormone (GnRH) receptor antagonist that reduces testicular testosterone, a hormone known to stimulate the growth of prostate cancer, and ovarian estradiol, a hormone known to stimulate the growth of uterine fibroids and endometriosis. Relugolix (120 mg) is FDA-approved as ORGOVYX for adult patients with advanced prostate cancer. Relugolix combination tablet (relugolix 40 mg, estradiol 1.0 mg, and norethindrone acetate 0.5 mg) is under regulatory review in Europe and the U.S. for women with uterine fibroids and is under development for women with endometriosis.
About ORGOVYX (relugolix)
ORGOVYX (relugolix) is the first and only oral gonadotropin-releasing hormone (GnRH) receptor antagonist approved by the FDA for the treatment of adult patients with advanced prostate cancer. As a GnRH antagonist, ORGOVYX blocks the GnRH receptor and reduces production of testicular testosterone, a hormone known to stimulate the growth of prostate cancer.
For full prescribing information, including patient information, please click here.
Indication
ORGOVYX is approved for the treatment of adult patients with advanced prostate cancer.
Select Important Safety Information
Androgen deprivation therapy, such as ORGOVYX, may prolong the QT/QTc interval. Providers should consider whether the benefits of androgen deprivation therapy outweigh the potential risks in patients with congenital long QT syndrome, congestive heart failure, or frequent electrolyte abnormalities and in patients taking drugs known to prolong the QT interval. Electrolyte abnormalities should be corrected. Consider periodic monitoring of electrocardiograms and electrolytes.
The safety and efficacy of ORGOVYX have not been established in females. Based on findings in animals and mechanism of action, ORGOVYX can cause fetal harm and loss of pregnancy when administered to a pregnant female. Advise males with female partners of reproductive potential to use effective contraception during treatment and for 2 weeks after the last dose of ORGOVYX.
Most common adverse reactions (≥ 10%) in patients receiving ORGOVYX were hot flush (54%), musculoskeletal pain (30%), fatigue (26%), constipation (12%), and diarrhea (12%).
Most common laboratory abnormalities (≥ 15%) in patients receiving ORGOVYX were glucose increased (44%), triglycerides increased (35%), hemoglobin decreased (28%), alanine aminotransferase increased (27%), and aspartate aminotransferase increased (18%).
Co-administration of ORGOVYX with a P-gp inhibitor increases the area under the curve (AUC) and maximum concentration (Cmax) of ORGOVYX, which may increase the risk of adverse reactions associated with ORGOVYX. Avoid co-administration of ORGOVYX with oral P-gp inhibitors. If co-administration is unavoidable, take ORGOVYX first, separate dosing by at least 6 hours, and monitor patients more frequently for adverse reactions.
Co-administration of ORGOVYX with a combined P-gp and strong CYP3A inducer decreases the AUC and Cmax of ORGOVYX, which may reduce the effects of ORGOVYX. Avoid co-administration of ORGOVYX with combined P-gp and strong CYP3A inducers. If co-administration is unavoidable, increase the ORGOVYX dose to 240 mg once daily.