New combo therapy aims to boost immune attack on HPV-Positive throat cancer

NCT ID NCT05996523

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This phase 2 trial tests whether combining an HPV vaccine (PRGN-2009) with the immunotherapy drug pembrolizumab can strengthen the immune system's attack on HPV-positive oropharyngeal cancer before standard treatment. Sixteen adults with newly diagnosed, HPV-related throat cancer will receive both treatments, then undergo standard therapy. The study measures changes in immune cells within the tumor and tracks survival over five years.

What this could mean

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

Active substance

HPV vaccine PRGN-2009 and pembrolizumab

What this could lead to

If it works, this combination could improve the immune response against HPV-related throat cancer, potentially leading to better outcomes before standard therapy.

What could go wrong

This is a small, early-phase trial with only 16 participants, so results may not apply broadly. The treatment is given before standard care, and its long-term benefit is uncertain.

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.

oropharynx squamous cell carcinoma Squamous Cell Carcinoma of Head and Neck

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