Stock Markets January 28, 2026

Serina Therapeutics Shares Jump After FDA Clears IND for SER-252 Parkinson’s Program

Clearance permits site-level start-up for a Phase 1b registrational study as the company advances its SER-252 candidate for advanced Parkinson's disease

By Ajmal Hussain SER
Serina Therapeutics Shares Jump After FDA Clears IND for SER-252 Parkinson’s Program
SER

Serina Therapeutics saw its stock surge after the U.S. FDA cleared an Investigational New Drug application for SER-252, enabling the company to proceed with site-level activities for a planned Phase 1b registrational trial. The firm has also initiated site start-up and regulatory steps in Australia to support a global registrational program, and said ongoing FDA interactions support a 505(b)(2) pathway that may streamline potential approval.

Key Points

  • FDA cleared Serina's IND for SER-252, permitting site-level start-up for a planned Phase 1b registrational clinical trial.
  • Serina has begun clinical site start-up and regulatory activities in Australia to support a global registrational program.
  • Regulatory interactions with the FDA provided feedback supporting a registrational trial design under a 505(b)(2) NDA pathway, which the company says could offer a more efficient route to potential approval.

Shares of Serina Therapeutics (NYSE: SER) climbed sharply in after-hours trading, rising 30.2% following regulatory news that the U.S. Food and Drug Administration has cleared an Investigational New Drug (IND) application for SER-252, a therapeutic candidate aimed at treating advanced Parkinson's disease.

The IND clearance authorizes the company to move forward with site-level activities necessary to launch a planned Phase 1b registrational clinical study. Serina indicated it has already initiated clinical site start-up and undertaken regulatory work in Australia to support a coordinated global registrational effort.

"FDA clearance of the IND is a major milestone for Serina and underscores the promise of the SER-252 program," said Steve Ledger, Chief Executive Officer of Serina Therapeutics. "As we initiate our registrational study, we will begin generating meaningful clinical data for SER-252 in patients with advanced Parkinson's disease."

Company statements note that Serina engaged in multiple regulatory exchanges with the FDA about the SER-252 program. Those discussions produced FDA feedback that supports the trial design proposed for a registrational study under a 505(b)(2) new drug application pathway - a route the company says could provide a more efficient path toward potential approval.

Serina Therapeutics describes itself as a clinical-stage biotechnology company developing therapeutics using its proprietary POZ Platform technology. The firm asserts the platform may enhance efficacy and safety profiles across diverse therapeutic modalities, including small molecules, RNA-based therapies, and antibody-drug conjugates.

The IND clearance and the start of site-level actions mark a procedural advance in Serina's development timeline, enabling the operational work needed to enroll patients and collect clinical data in the upcoming registrational study. The company has made regulatory and clinical site preparations in Australia to support its global program, while continuing interactions with the FDA regarding study design and regulatory strategy.


What this means

  • The FDA's IND clearance allows Serina to commence site-level activities for a Phase 1b registrational study of SER-252 in advanced Parkinson's patients.
  • Regulatory engagement with the FDA produced feedback consistent with pursuing a 505(b)(2) NDA pathway, which the company notes could be more efficient for potential approval.
  • Serina has begun site start-up and regulatory activities in Australia as part of a global registrational program.

Investors and market participants will be watching for the initiation of the registrational study and the clinical data that the company expects to generate during the trial. The pace of site activation, enrollment and subsequent data readouts will shape the program's next milestones.

Risks

  • Regulatory uncertainty: While FDA feedback supported the proposed registrational design under a 505(b)(2) pathway, the company notes this could provide a more efficient route to approval - the language reflects that potential efficiency is not guaranteed and depends on future regulatory review.
  • Clinical development risk: The company will need to generate meaningful clinical data in the planned Phase 1b registrational study; outcomes from that trial will determine the program's progress and are inherently uncertain.
  • Platform claims are unproven: Serina states its POZ Platform has the potential to improve efficacy and safety across multiple modalities, which is a company claim and will require clinical validation.

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