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FDA complete response letters, September 2025

Page updated ·next FDA decision on the calendar ·Data as of Nov 10, 2026 12:55 AM ET

The FDA's public release of complete response letters holds 3 letters dated September 2025 (openFDA, last updated 2026-08-26). Of the 17 FDA decisions on PDUFA goal dates pdufa.bio tracked in September 2025, 4 were Complete Response Letters.

Released by the FDA, dated September 2025 · 3

Letter dateCompanyApplicationopenFDA statusLetter
2025-09-30Sentynl Therapeutics, Inc.NDA 211241Unapprovedletter (PDF)
2025-09-22Scholar Rock, Inc.BLA 761463Unapprovedletter (PDF)
2025-09-22Biogen, Inc.NDA 209531/S-016Unapprovedletter (PDF)

Complete Response Letters among decisions pdufa.bio tracked · 4

FDA actionTickerDrugSource
2025-09-23SRRKApitegromabdecision page
2025-09-23IONSprice-onlydecision page
2025-09-23BIIBprice-onlydecision page
2025-09-12GMABprice-onlydecision page
A Complete Response Letter is the FDA's notice that it will not approve an application in its current form; it is not a permanent rejection, and the sponsor can resubmit. The two counts come from different records and are not added together. ← August 2025 · October 2025 → · all released letters · every CRL decision we tracked