Sage Therapeutics and Biogen Initiate Rolling Submission of New Drug Application (NDA) to U.S. Food and Drug Administration for Zuranolone for the Potential Treatment of Major Depressive Disorder (MDD)

The companies expect to complete submission of the NDA for treatment of MDD in the second half of 2022; associated filing for postpartum depression anticipated in the first half of 2023

Sage Therapeutics, Inc. (Nasdaq: SAGE) and Biogen Inc. (Nasdaq: BIIB) initiated a rolling submission of a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) for zuranolone in the treatment of major depressive disorder (MDD). Zuranolone is an investigational two-week, once-daily oral drug being developed for MDD and postpartum depression (PPD). The companies have submitted the nonclinical module of the NDA to the FDA and plan to submit the remaining components for the MDD filing in the second half of 2022.

Data from the completed studies of zuranolone in the LANDSCAPE and NEST clinical development programs, including data from the ongoing open-label SHORELINE Study in MDD, as well as data from the completed clinical pharmacology studies, will comprise the full submission package. The rolling submission process allows completed sections of an NDA to be submitted to the FDA for review on an ongoing basis.

“There are millions of people living with depression and the initiation of the rolling NDA submission brings us one step closer to our goal of offering zuranolone as a potential new treatment option,” said Barry Greene, Chief Executive Officer at Sage. “We believe the results from the LANDSCAPE and NEST programs, in which zuranolone demonstrated rapid and sustained effects and a well-tolerated safety profile in clinical trials, support zuranolone as a potential novel treatment option for MDD, if approved. We look forward to providing an update when the rolling submission for zuranolone in MDD is complete, which we expect to occur in the second half of this year.” 

“Zuranolone has the potential to help address a significant unmet medical need in depression as an innovative option in a therapeutic area where little has changed in the past 30 years,” said Priya Singhal, M.D., M.P.H., Head of Global Safety and Regulatory Sciences and Interim Head of R&D at Biogen. “We are committed to advancing the science and developing new approaches to treating mental health, a major public health challenge that was exacerbated by the COVID-19 pandemic.”

About Zuranolone
Zuranolone (SAGE-217/BIIB125) is a once-daily, two-week, investigational drug in development for the treatment of major depressive disorder (MDD) and postpartum depression (PPD). Zuranolone is an investigational oral neuroactive steroid (NAS) GABA-A receptor positive allosteric modulator (PAM). The GABA system is the major inhibitory signaling pathway of the brain and central nervous system and contributes to regulating brain function. Zuranolone has been granted Fast Track and Breakthrough Therapy Designation for MDD and Fast Track Designation for PPD by the U.S. Food & Drug Administration.

Zuranolone is being evaluated in the LANDSCAPE and NEST clinical development programs. The two development programs include multiple studies examining use of zuranolone in several thousand people with a variety of dosing, clinical endpoints, and treatment paradigms. The LANDSCAPE program includes five studies of zuranolone in people with MDD (MDD-201B, MOUNTAIN, SHORELINE, WATERFALL, and CORAL Studies). The NEST program includes two placebo-controlled studies of zuranolone in people with PPD (ROBIN and SKYLARK Studies). Additionally, Shionogi completed a Phase 2 study of zuranolone in Japan in people with MDD.

About Major Depressive Disorder (MDD)
Major depressive disorder (MDD) is a common but serious mood disorder in which people experience depressive symptoms that impair their social, occupational, educational, or other important functioning, such as a depressed mood or loss of interest or pleasure in daily activities, consistently for at least a two-week period. It is estimated that more than 21 million adults1 in the U.S. and approximately 280 million people2 worldwide suffer from depression. While antidepressants are widely used to treat MDD, large-scale studies have demonstrated the need for additional therapies with a differentiated profile.

About Postpartum Depression (PPD)
Postpartum depression (PPD) is one of the most common medical complications during and after pregnancy. PPD can have a serious negative impact on a woman, including significant functional impairment, depressed mood and/or loss of interest in her newborn, and associated symptoms of depression such as loss of appetite, difficulty sleeping, motor challenges, lack of concentration, loss of energy and poor self-esteem. PPD is estimated to affect approximately one in eight women who have given birth in the U.S. or approximately 500,0003 women annually.

About Sage Therapeutics
Sage Therapeutics is a biopharmaceutical company fearlessly leading the way to create a world with better brain health. Our mission is to pioneer solutions to deliver life-changing brain health medicines, so every person can thrive. For more information, please visit

About Biogen
As pioneers in neuroscience, Biogen discovers, develops, and delivers worldwide innovative therapies for people living with serious neurological diseases as well as related therapeutic adjacencies. One of the world’s first global biotechnology companies, Biogen was founded in 1978 by Charles Weissmann, Heinz Schaller, Sir Kenneth Murray, and Nobel Prize winners Walter Gilbert and Phillip Sharp. Today, Biogen has a leading portfolio of medicines to treat multiple sclerosis, has introduced the first approved treatment for spinal muscular atrophy, and is providing the first and only approved treatment to address a defining pathology of Alzheimer’s disease. Biogen is also commercializing biosimilars and focusing on advancing the industry’s most diversified pipeline in neuroscience that will transform the standard of care for patients in several areas of high unmet need.

In 2020, Biogen launched a bold 20-year, $250 million initiative to address the deeply interrelated issues of climate, health, and equity. Healthy Climate, Healthy Lives™ aims to eliminate fossil fuels across the company’s operations, build collaborations with renowned institutions to advance the science to improve human health outcomes, and support underserved communities.

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