Axsome Therapeutics, Inc. announced the first patient has been dosed in the PARADIGM Phase 3 trial of solriamfetol, an investigational treatment for major depressive disorder (MDD). PARADIGM (Progressing TAAR-1, Dopamine, and Norepinephrine in Depression Using Solriamfetol) is a Phase 3, randomized, double-blind, placebo-controlled, multicenter trial to assess the efficacy and safety of solriamfetol for the treatment of MDD in adults. Approximately 300 patients will be randomized in a 1:1 ratio to receive solriamfetol (300 mg) or placebo for 6 weeks.

The primary endpoint will be change in the Montgomery Åsberg Depression Rating Scale (MADRS).