Core Insights - Serina Therapeutics is advancing SER-252 (POZ-apomorphine) for advanced Parkinson's disease under the 505(b)(2) NDA pathway, with U.S. IND filing planned for Q4 2025 and patient dosing in Australia expected to start in the same quarter [1][4] Company Developments - The FDA's feedback supports the registrational study program for SER-252, indicating that the initial study may be part of a registrational trial program [2][4] - The SER-252-1b study is a randomized, double-blind, placebo-controlled Phase 1b trial designed to evaluate safety, tolerability, and pharmacokinetics of SER-252 versus placebo [5] Product Information - SER-252 is designed to provide continuous dopaminergic stimulation via subcutaneous injection, aiming to reduce motor fluctuations in advanced Parkinson's patients [6] - The POZ platform technology enhances drug delivery by providing greater control in drug loading and release rates, potentially improving the efficacy and safety profile of various therapeutic agents [7][8] Future Plans - Serina plans to initiate U.S. enrollment in Q1 2026 following IND clearance, with data from Australian patients contributing to the overall regulatory review package [4] - The company aims to advance a pipeline of POZ-enabled small molecules that may follow similar regulatory pathways [3]