Axsome Therapeutics Inc.’s AXS-05 (dextromethorphan + bupropion) has notched another success by hitting its phase III primary endpoint in treating a notoriously difficult Alzheimer’s disease (AD) indication when compared to placebo. Newly released data from the Accord study showed AXS-05, an oral, NMDA receptor antagonist with multimodal activity, statistically significantly delayed time to relapse of AD agitation vs. placebo (p=0.014), which was the primary endpoint.
A year from the U.S. FDA’s August 2021 citation of deficiencies in the labeling for Axsome Therapeutics Inc.’s major depressive disorder therapy, Auvelity (dextromethorphan + bupropion), the agency has approved the drug for use by adults. The New York-based company’s stock (NASDAQ:AXSM) took flight on the news, with shares rising 40% to close at $59.55 Aug. 19, surpassing their previous 52-week high of $48.82 and starkly contrasting with a same-period low of $19.38.
Axsome Therapeutics Inc. and the U.S. FDA appear to be working out their differences. The company said it received the proposed labeling from the agency for AXS-05 (dextromethorphan + bupropion), an oral NMDA receptor antagonist with multimodal activity, for treating major depressive disorder.
Timothy syndrome, a rare autosomal-dominant disorder, is characterized by presence of a heart arrhythmia (long QT syndrome), which causes the cardiac muscle to take longer than usual to recharge between beats and can result in sudden death. Now scientists at Columbia University have discovered that a common FDA-approved over-the counter cough suppressant, dextromethorphan, can shorten the prolonged QT intervals in both cellular and mouse models of TS.
Shares of Axsome Therapeutics Inc. (NASDAQ:AXSM) hit a 52-week low on Aug. 9, falling 46.5% to close at $24.37, after the FDA said deficiencies in an NDA in major depressive disorder for its drug, AXS-05 (dextromethorphan + bupropion), would "preclude labeling discussions" for now.
