The decision to withdraw the BLA is based on topline overall survival (OS) results from the confirmatory HERTHENA-Lung02 Phase 3 trial where OS did not meet statistical significance
AstraZeneca and Daiichi Sankyo’s Enhertu followed by THP showed an improved safety profile vs. standard of care
DESTINY-Breast09 Phase III trial of AstraZeneca and Daiichi Sankyo’s Enhertu is the first trial in more than a decade to demonstrate superior efficacy across a broad HER2-positive metastatic patient population versus current 1st-line standard of care
TROPION-Lung01, evaluating AstraZeneca and Daiichi Sankyo’s datopotamab deruxtecan versus chemotherapy, previously met the dual primary endpoint of progression-free survival in the overall trial population
To co-develop and co-commercialize MK-6070, an investigational delta-like ligand 3 (DLL3) targeting T-cell engager, worldwide except for Japan where Merck retains exclusive rights
Application based on results from the TROPION-Breast01 Phase III trial
The validations confirm the completion of the applications and commence the scientific review process
Submission to be reviewed under FDA real-time oncology review and Project Orbis
If approved, patritumab deruxtecan would be a first-in-class HER3 directed DXd antibody drug conjugate for these patients
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