OV350 showed a good safety profile, supporting the advancement of the Company's KCC2 portfolio, including the first oral direct activator, OV4071 There were no treatment-related laboratory findings, no safety findings, and no treatment-related serious adverse events (SAEs) Exploratory quantitative electrophysiology results suggest OV350 had central activity and spectral power consistent with expected physiological effects of KCC2 modulation; aligned with expected drug exposure in the brain Pharmacokinetics for OV350 were as predicted, and will inform dosing strategies for future KCC2 development programs OV4071 (oral) is on track for regulatory submission for a Phase 1/1b clinical trial in Q1 2026 NEW YORK, Dec. 18, 2025 (GLOBE NEWSWIRE) -- Ovid Therapeutics Inc. (Nasdaq: OVID), a biopharmaceutical company developing small molecule medicines to treat brain disorders and symptoms caused by excess neural excitability, today announced results from its Phase 1 study of OV350, the first-ever KCC2 direct activator known to be dosed in humans. The study met its primary objectives to evaluate safety, tolerability and pharmacokinetics.