FDA Asks Reviva Pharmaceuticals To Conduct Additional Phase 3 Study For Its Schizophrenia Drug

Core Viewpoint - Reviva Pharmaceuticals Holdings Inc. announced a regulatory update regarding brilaroxazine, a drug in late-stage development for schizophrenia, following a pre-New Drug Application meeting with the FDA [1] Group 1: FDA Feedback and Clinical Trials - The FDA recommended a second Phase 3 clinical trial for brilaroxazine to generate additional efficacy data and expand the safety dataset [2] - Reviva plans to initiate the RECOVER-2 Phase 3 trial in the first half of 2026, which will be similar in design to the completed RECOVER Phase 3 trial [2] - The recommendation was based on the review of existing nonclinical and clinical data, including a Phase 2 trial and a Phase 3 trial with a 1-year open-label extension [4] Group 2: Efficacy and Safety Profile - Brilaroxazine has demonstrated broad-spectrum efficacy in major symptom domains of schizophrenia, including negative symptoms, in 790 subjects from the Phase 2 and Phase 3 clinical trials [5] - The drug has a generally well-tolerated safety profile, observed in over 900 subjects treated to date [5] - The CEO of Reviva expressed appreciation for the FDA's constructive feedback, highlighting the drug's favorable safety profile and treatment adherence [3] Group 3: Market Context - Reviva Pharmaceuticals shares were down 48.54% at $0.30 during premarket trading, nearing its 52-week low of $0.25 [7] - In a related market development, China's NMPA approved the New Drug Application for Cobenfy, a schizophrenia treatment, which Zai Lab Limited is licensed to develop in Greater China [6]