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Patients with von Hippel–Lindau (VHL) disease, which is caused by germline pathogenic variations in the VHL gene, have a high incidence of clear cell renal cancer (ccRC) in addition to a myriad of extra-renal manifestations, including hemangioblastomas of the central nervous system (CNS) and pancreatic neuroendocrine tumors. Hypoxia-inducible factor 2α (HIF-2α) is a transcription factor known to drive the progression of ccRC.
Investigators conducted an industry-sponsored multinational phase 2 trial of a novel HIF-2α inhibitor, belzutifan, in patients with VHL-related ccRC. Eligible patients were required to have good ECOG performance status and at least one measurable site of disease. Patients received belzutifan orally at 120 mg daily. The …