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# Comments Extended on Gene Therapy Guide
- URL: https://www.fdaweb.com/comments-extended-on-gene-therapy-guide/
- Published: 2020-04-22T12:00:00.000Z
- Updated: 2026-09-14T16:12:18.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5146622

*Federal Register* notice: FDA has extended the comment period on a 1/30-published draft guidance entitled “Interpreting Sameness of Gene Therapy Products Under the Orphan Drug Regulations.” Electronic or written comments can now be submitted by 7/28\. To view the notice, click [here](https://s3.amazonaws.com/public-inspection.federalregister.gov/2020-08609.pdf?ref=fdaweb.com).