Ralph A. DeFronzo, M.D.
FDA warning letter issued 2025-09-17 · posted 2025-09-23
Letter details
- Company
- Ralph A. DeFronzo, M.D.
- Subject
- Clinical Investigator/Sponsor
- Issuing office
- Center for Drug Evaluation and Research (CDER)
- Letter issue date
- 2025-09-17
- Posted date
- 2025-09-23
- Case number
- 716773
Read the full letter on fda.gov
FDA's public listing keeps roughly five years of letters; older ones roll off. Atlas preserves every letter it has ingested since September 2026 and refreshes the listing weekly. Verify enforcement matters against the primary source linked above.
Hear about the next one
Watch an issuing office from its directory page and new letters land in your change alerts. Elsewhere this data sells for hundreds of dollars per document; here it is part of the record.