Can a vaccine plus a Blood-Vessel blocker stop airway growths from coming back?

NCT ID NCT07756840

First seen Aug 11, 2026 · Last updated Aug 14, 2026 · Updated 3 times

Summary

This phase II trial tests whether combining bevacizumab, a drug that limits blood vessel growth, with PRGN-2012, a vaccine-based therapy, can help adults with recurrent respiratory papillomatosis (RRP) avoid needing more surgeries. RRP causes wart-like growths in the airway that can affect breathing and voice. Participants receive both treatments over about six months and are followed for a year to see if the growths stay away without further intervention.

What this could mean

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

Active substance
A combination of two treatments: bevacizumab (a drug that blocks blood vessel growth) and PRGN-2012 (a vaccine-based therapy that targets HPV).
What this could lead to
If successful, this combination could reduce or eliminate the need for repeated surgeries in people with recurrent respiratory papillomatosis, potentially improving breathing and voice function.
What could go wrong
This is a phase II trial with a modest number of participants, so results may not generalize. The combination may cause side effects, and the vaccine component may not work in all patients.

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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.

Contacts and locations

Locations

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States

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