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U.S. FDA Approves WELIREG® (belzutifan) Plus LENVIMA® (lenvatinib) for Certain Previously Treated Adult Patients With Advanced Renal Cell Carcinoma With a Clear Cell Component (ccRCC)

$MRKPress releaseSep 25, 2026, 6:45 AM ETRead the release

The FDA approved Merck's WELIREG (belzutifan) plus Eisai's LENVIMA (lenvatinib) for adults with advanced renal cell carcinoma with a clear cell component following a PD-1/PD-L1 inhibitor. Approval is based on the Phase 3 LITESPARK-011 trial, where the combination cut the risk of progression or death by 26% versus cabozantinib (HR 0.74), with median PFS of 14.6 months versus 10.6 months and ORR of 53% versus 40%.

Key figures

Drug Name
WELIREG (belzutifan) plus LENVIMA (lenvatinib)
Phase Of Trial
Phase 3
Trial
LITESPARK-011
Orr combination
53%
Orr cabozantinib
40%
Overall survival
did not meet statistical significance
Pfs hazard ratio
0.74 (95% CI, 0.61-0.89; p=0.001)
Patients enrolled
747
Pfs reduction risk
26%
Median pfs combination
14.6 months
Median pfs cabozantinib
10.6 months

AI analysis

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