Sage Therapeutics and Biogen Announce Topline Results from Phase 2 KINETIC 2 Study of SAGE-324 (BIIB124) for the Treatment of Essential Tremor

CAMBRIDGE Mass. – July 24, 2024 – Sage Therapeutics, Inc. (NASDAQ: Sage) and Biogen Inc. (NASDAQ: BIIB) announced topline results from the Phase 2 KINETIC 2 dose-range study of the oral investigational drug SAGE-324 (BIIB124) as a potential treatment in essential tremor (ET). The KINETIC 2 Study did not demonstrate a statistically significant dose-response relationship in change from baseline to Day 91 based on the primary endpoint, The Essential Tremor Rating Assessment Scale (TETRAS) Performance Subscale (PS) Item 4 (upper limb) total score, in participants with ET. In addition, there were no statistically significant differences demonstrated for any dose of SAGE-324 versus placebo in the change from baseline to Day 91 on the TETRAS PS Item 4 Total Score or the TETRAS Activities of Daily Living (ADL) Composite Score. Given these results, Sage and Biogen will close the ongoing open label safety study of SAGE-324 in ET and do not plan to conduct further clinical development of SAGE-324 in ET. The companies are evaluating next steps, if any, for other potential indications.