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Brian Rini: ASCO 2025 HIF inhibitor combination results
Jun 2, 2025, 08:00

Brian Rini: ASCO 2025 HIF inhibitor combination results

Brian Rini, , Chief of Clinical Trials at Vanderbilt University, shared on X:

“ASCO 2025 HIF inhibitor combination results. Shown below is single agent Cabozantinib and Belzutifan for reference, and published HIF-based combo data.
  • ORR marginally higher
  • PFS longer but endpoint not reliable in a single-arm trial
  • Phase 3 trials are planned. Beating TKI may be challenging.”

Brian Rini: ASCO 2025 HIF inhibitor combination results

Tres Uramigas shared a post by Brian Rini on X, adding:

“Phase 1 of casdatifan (HIF2a) + cabozantinib (VEGF TKI) in ccRCC (n=27, short follow-up)
  • Most patients had no prior VEGF treatment
  • Well tolerated; anemia and fatigue were the main adverse events
  • Response rate 41% → PEAK1: cabo/casdatifan vs cabo in pretreated metastatic ccRCC.”