Issue Date: August 20, 2026
Issued by: Center for Biologics Evaluation and Research
Topic(s): Biologics, Gene Therapy
Status: Final
Frequently Asked Questions — Developing Potential Cellular and Gene Therapy Products
This final guidance provides industry with answers to frequently asked questions (FAQs) and commonly faced issues that arise during the development of cellular and gene therapy (CGT) products, spanning regulatory review, chemistry, manufacturing, and controls (CMC), pharmacology/toxicology, clinical, and clinical pharmacology topics. This guidance finalizes the draft version issued in November 2024 as part of FDA’s PDUFA VII commitment to support cellular and gene therapy product development.
Download the Guidance Document
