Serina Therapeutics Submits Complete Response to FDA Clinical Hold Letter for SER-252 Program

– Company addresses FDA requests regarding formulation excipient – Global site start-up activities continue, with first-patient-in for registrational Phase 1b study targeted for Q1 2026, subject to FDA feedback HUNTSVILLE, Dec. 10, 2025 (GLOBE NEWSWIRE) -- Serina Therapeutics, Inc. (“Serina” or the "Company") (NYSE American: SER), a clinical-stage biotechnology company advancing its lead Investigational New Drug ("IND") candidate, SER-252, for advanced Parkinson's disease, enabled by its proprietary POZ Pla ...