Devalingam Mahalingam, M.D., Ph.D.
676 North Saint Clair Street, Suite 1200
Chicago , IL 60611-3068
United StatesFEI 3031824073Issued Dec 11, 2025Center for Drug Evaluation and Research (CDER)
Source: FDA, published letter. FDA published this warning letter; View Letter opens FDA's copy. To check it, open FDA's record for this establishment, listed under FEI 3031824073.
Violations1
Issue DateDec 11, 2025
Product TypeOther
StatusOpen
Letter Details
Firm
Devalingam Mahalingam, M.D., Ph.D.
Location
Devalingam Mahalingam, M.D., Ph.D.
676 North Saint Clair Street, Suite 1200
Chicago , IL 60611-3068
United States
FEI Number
3031824073
Country
United States
Issue Date
December 11, 2025
Issuing Office
Center for Drug Evaluation and Research (CDER)
Product Type
Other
Status
Open
Summary
Dr. Devalingam Mahalingam failed to conduct clinical drug investigations in accordance with applicable FDA regulations and investigational plans, specifically violating 21 CFR 312.60 by not ensuring that investigational drugs were administered to subjects according to their assigned dose-level cohorts as required by the protocol. The FDA inspection, conducted between October 7-18, 2024, as part of the Bioresearch Monitoring Program, identified objectionable conditions across at least two clinical protocols that raised concerns about the protection of human subjects' rights, safety, and welfare. Despite the investigator's review of these findings and Dr. Mahalingam's written response in November 2024, the FDA determined the response was inadequate to address the fundamental violations of the investigational plan requirements.
Devalingam Mahalingam, M.D., Ph.D. FDA Warning Letter, December 11, 2025