Cold sore virus modified to fight kidney cancer in new trial

NCT ID NCT07218692

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 2 trial tests a combination of RP2 (a modified herpes simplex virus that targets and destroys tumor cells) and tivozanib (a drug that blocks tumor blood vessel growth) in 35 patients with metastatic kidney cancer that worsened after immunotherapy. The goal is to see if the combination is safe and can shrink tumors. Participants will receive the virus injection and oral tivozanib, along with biopsies and imaging.

What this could mean

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

Active substance

RP2 (a modified herpes simplex virus) and tivozanib hydrochloride

What this could lead to

If successful, this combination could offer a new treatment option for patients with advanced kidney cancer that has stopped responding to immunotherapy.

What could go wrong

This is a small, early-phase trial (35 participants) testing safety and effectiveness. The virus-based therapy may cause side effects, and results may not apply to all patients.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

clear cell renal carcinoma Clear-cell metastatic renal cell carcinoma renal cell adenocarcinoma renal cell carcinoma sarcomatoid renal cell carcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • City of Hope Medical Center

    Duarte, California, 91010, United States

    Contact Email: •••••@•••••

    Contact

  • City of Hope at Irvine Lennar

    Irvine, California, 92618, United States

    Contact Email: •••••@•••••

    Contact