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PMID
Authors
Title Welireg (belzutifan) FDA Drug Label
Journal Vol Issue Date Pages Journal Short Title
URL https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm?event=overview.process&ApplNo=215383
Abstract Text

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Belzutifan Belzutifan 7 7
Drug Name Trade Name Synonyms Drug Classes Drug Description
Belzutifan Welireg PT2977|MK-6482|PT-2977 HIF2A Inhibitor 6 Welireg (belzutifan) is a hypoxia inducible factor-2alpha (EPAS1, HIF2A) inhibitor that suppresses expression of HIF2A target genes, resulting in tumor regression (Mol Cancer Ther 2018,17(1 Suppl):Abstract nr B140, PMID: 31282155). Welireg (belzutifan) is FDA-approved for use in patients with von Hippel-Lindau (VHL) disease-associated renal cell carcinoma, central nervous system hemangioblastomas, or pancreatic neuroendocrine tumors that require therapy, and in patients with advanced renal cell carcinoma who have received anti-PD-1 or PD-L1 therapy and VEGF inhibitor (FDA.gov).
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
VHL inact mut hemangioblastoma sensitive Belzutifan FDA approved Actionable In a Phase II trial (LITESPARK-004) that supported FDA approval, Welireg (belzutifan) treatment was safe and resulted in an objective response rate of 44% (22/61, 4 complete responses, 18 partial responses) in patients with Von Hippel-Lindau disease-associated CNS hemangioblastoma harboring germline VHL mutations, with a disease control rate of 90%, a median time to response of 5.4 months, and median progression-free survival not reached (J Clin Oncol 41, 2023 (suppl 16; abstr 2008); NCT03401788). detail... detail...
VHL inact mut renal cell carcinoma sensitive Belzutifan FDA approved Actionable In a Phase II trial that supported FDA approval, Welireg (belzutifan) treatment was safe and resulted in a confirmed partial response (PR) in 36% (22/61) and unconfirmed PR in 11% (7/61) of patients with Von Hippel-Lindau disease-associated localized renal cell carcinoma harboring germline VHL mutations, median duration of response was not reached in responders (J Clin Oncol 39, no. 15_suppl (May 20, 2021) 4555-4555; NCT03401788). detail... detail...
VHL inact mut pancreatic endocrine carcinoma sensitive Belzutifan FDA approved Actionable In a Phase II trial that supported FDA approval, Welireg (belzutifan) treatment was safe and resulted in an overall response rate of 80% (16/20, 1 complete response, 15 partial responses) in patients with Von Hippel-Lindau disease-associated pancreatic neuroendocrine tumors harboring germline VHL mutations (J Clin Oncol 39, no. 15_suppl (May 20, 2021) 4555-4555; NCT03401788). detail... detail...