Can a pill that starves tumors of oxygen help fight advanced cancer?

NCT ID NCT02974738

First seen Jul 22, 2026 · Last updated Jul 23, 2026 · Updated 1 time

Summary

This early-stage trial is testing an experimental drug called belzutifan in people with advanced solid tumors that have not responded to standard treatments. Belzutifan works by blocking a protein (HIF-2α) that tumors use to survive in low-oxygen conditions. The main goal is to find the safest dose and see how the body handles the drug.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
belzutifan (a HIF-2α inhibitor drug)
What this could lead to
If successful, this could lead to a new treatment option for advanced solid tumors, including kidney cancer and glioblastoma.
What could go wrong
This is an early phase 1 trial, so the drug may not work or could cause serious side effects. The goal is primarily to find a safe dose, not to prove effectiveness.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

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