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Merck and Eisai Present P-III (LITESPARK-011) Trial Data on Welireg + Lenvima in Advanced Renal Cell Carcinoma (RCC) at ASCO GU 2026

Shots: Merck & Eisai has reported the P-III (LITESPARK-011) trial data assessing Welireg (belzutifan; 120mg, PO, QD) + Lenvima (lenvatinib; 20mg, PO, QD) vs cabozantinib in 747 pts with advanced RCC whose disease progressed on or after anti-PD-1/ PD-L1 therapy At mFU of 29mos., trial met its 1EP of improved PFS by 30% (mPFS: 14.8 vs…
March 3, 2026

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Merck Presents P-III (LITESPARK-022) Trial Data on Keytruda + Welireg in Clear Cell Renal Cell Carcinoma (RCC) at ASCO GU 2026

Shots: Merck has reported the P-III (LITESPARK-022) trial data assessing Keytruda (400mg, Q6W, IV) + Welireg (120mg, QD, PO) vs Keytruda + PBO for 1yr. in 1,841 pts with clear cell RCC following nephrectomy At 28.4mos. mFU, the trial showed improved DFS (1EP), reducing the risk of disease recurrence or death by 28%, with mDFS…
March 2, 2026

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Merck Reports the P-III (LITESPARK-022) Trial Data on Welireg + Keytruda to Treat Clear Cell Renal Cell Carcinoma (RCC)

Shots: Merck has reported the P-III (LITESPARK-022) trial data assessing Keytruda (400mg, Q6W, IV) + Welireg (120mg, QD, PO) vs Keytruda + PBO for 1yr. in 1,841 pts with clear cell RCC following nephrectomy Trial showed significantly improved disease-free survival (1EP), with OS as 2EP under evaluation; data to be presented in future & shared…
October 29, 2025

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Merck’s Welireg Receives the US FDA’s Approval for Pheochromocytoma and Paraganglioma

Shots: The US FDA has approved Welireg for the treatment of pts (≥12yrs.) with advanced, unresectable, or metastatic pheochromocytoma & paraganglioma (PPGL) Approval was based on Cohort A1 data from P-II (LITESPARK-015) trial assessing Welireg monotx. (120mg; QD) in 72 pts with unresectable or non-curable PPGL & stable blood pressure (BP <150/90 mm Hg, <135/85 mm…
May 15, 2025

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Merck Receives the EC’s Approval for Welireg (Belzutifan) for Von Hippel-Lindau (VHL) Disease-Associated Tumors and Previously Treated Renal Cell Carcinoma

Shots: The EC has approved Welireg for VHL-related localized RCC, CNS hemangioblastomas, or pNET unsuitable for localized procedures and advanced ccRCC post-PD-1/PD-L1 inhibitors or VEGF therapies progression across EU member states, as well as Iceland, Liechtenstein & Norway Approval for VHL-related tumors was based on P-II (LITESPARK-004) study (n=61), showing ORR of 49% (all…
February 19, 2025

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 Merck Reports the CHMP’s Positive Opinion of Welireg (Belzutifan) for Von Hippel-Lindau (VHL) Disease-Associated Tumors and Previously Treated Renal Cell Carcinoma 

Shots:     The CHMP has recommended conditional approval of Welireg for VHL-related localized RCC, CNS hemangioblastomas or pNET unsuitable for localized procedures and advanced ccRCC post PD-1/PD-L1 inhibitors or VEGF therapies progression. EC’s decision is anticipated in Q1’25  Opinion for VHL-related tumors was based on LITESPARK-004 study (n=61), showing ORR of 49% (all PRs), with 56%…
December 13, 2024

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