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Ifinatamab Deruxtecan Biologics License Application for Certain Patients with Previously Treated Extensive-Stage Small Cell Lung Cancer Voluntarily Withdrawn

Key Takeaway: Daiichi Sankyo and Merck have voluntarily withdrawn their Biologics License Application for ifinatamab deruxtecan, intended for treating extensive-stage small cell lung cancer. This decision follows discussions with the FDA, suggesting concerns regarding the application. The withdrawal raises questions about the future of this treatment option for patients who have progressed after chemotherapy.

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CONCERNS & RISKS

  • The Biologics License Application for ifinatamab deruxtecan has been withdrawn.
  • The withdrawal indicates potential challenges in gaining approval for the treatment.
  • The decision may impact patients with extensive-stage small cell lung cancer.

BiopharmaWatch Analysis

From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+43%
120-day peak, hindsight
Typical move
2.7%
average across 15 past catalysts
Lead asset
MK-8527
Phase 3 · Human Immunodeficiency Virus

Full Press Release Details

RAHWAY, N.J.--(BUSINESS WIRE)--The Biologics License Application (BLA) seeking accelerated approval in the U.S. for Daiichi Sankyo (TSE: 4568) and Merck’s (NYSE: MRK), known as MSD outside of the United States and Canada, ifinatamab deruxtecan (I-DXd) for the treatment of adult patients with extensive-stage small cell lung cancer (ES-SCLC) with disease progression on or after platinum-based chemotherapy has been voluntarily withdrawn. The decision to withdraw the BLA is based on discussions wit

Frequently Asked Questions

What is ifinatamab deruxtecan used for?

Ifinatamab deruxtecan is intended for treating extensive-stage small cell lung cancer.

Why was the BLA for ifinatamab deruxtecan withdrawn?

The BLA was withdrawn following discussions with the FDA regarding its approval.

Who are the developers of ifinatamab deruxtecan?

Ifinatamab deruxtecan is developed by Daiichi Sankyo and Merck.

What does BLA stand for?

BLA stands for Biologics License Application.

Last updated: Sep 25, 2026