Merck, Daiichi Sankyo Voluntarily Withdraw Biologics License Application Approval In U.S. For Ifinatamab Deruxtecan To Treat Small Cell Lung Cancer After Discussions With FDA
9/25/2026
Impact: -75
Healthcare
Merck and Daiichi Sankyo have voluntarily withdrawn their Biologics License Application (BLA) for ifinatamab deruxtecan (I-DXd) aimed at treating extensive-stage small cell lung cancer in the U.S. This decision follows discussions with the FDA, indicating that the data from the IDeate-Lung01 phase 2 trial did not meet the necessary requirements for accelerated approval. The accelerated approval pathway is designed for serious conditions with unmet medical needs.
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