Tiny study tests Tumor-Injected drug plus immunotherapy for tough cancers

NCT ID NCT05383170

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase trial tested a new drug called CyPep-1, injected directly into tumors, combined with the immunotherapy pembrolizumab (Keytruda) in 6 people with advanced head and neck cancer, melanoma, or triple-negative breast cancer. The main goal was to check safety and side effects, not to cure the disease. Because it was very small and early, we cannot draw strong conclusions about how well it works.

What this could mean

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

Active substance

CyPep-1 (a drug injected into tumors) and pembrolizumab (an immunotherapy drug, also known as Keytruda)

What this could lead to

If it works, this combination could shrink tumors and help control advanced cancers that are hard to treat.

What could go wrong

This is a very early, tiny study (only 6 people) focused on safety, not effectiveness. The results may not apply to larger groups, and side effects are unknown.

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.

breast cancer head and neck squamous cell carcinoma melanoma metastatic melanoma neoplasm triple-negative breast carcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • AP-HM - Hôpital de la Timone

    Marseille, France

  • Azienda Ospedaliero Universitaria Senese

    Siena, Italy

  • CHRU de Besançon

    Besançon, France

  • CHU Lille

    Lille, France

  • Centre Leon Berard

    Lyon, France

  • City Of Hope

    Duarte, California, 91010, United States

  • Clinica Universidad de Navarra Madrid

    Madrid, Spain

  • Clinica Universidad de Navarra Pamplona

    Pamplona, Spain

  • EMC

    Rotterdam, Netherlands

  • Henry Ford Health System

    Detroit, Michigan, 48202, United States

  • Hospital Universitario 12 de Octubre

    Madrid, Spain

  • Hospital Universitario HM Sanchinarro

    Madrid, Spain

  • Hospital Universitario Virgen Macarena

    Seville, Spain

  • Houston Methodist

    Houston, Texas, 77030, United States

  • Hôpital Saint Louis - AP-HP

    Paris, France

  • Institut Bergonie

    Bordeaux, France

  • Institut Paoli Calmettes

    Marseille, France

  • Institute Gustave Roussy

    Villejuif, France

  • Istituto Europeo di Oncologia

    Milan, Italy

  • Maastricht UMC

    Maastricht, Netherlands

  • NKI/AvL

    Amsterdam, Netherlands

  • Texas Oncology - Baylor Charles A. Sammons Cancer Center

    Dallas, Texas, 75246, United States

  • University of Alabama at Birmingham

    Birmingham, Alabama, 35294, United States

  • University of Pittsburgh Medical Center

    Pittsburgh, Pennsylvania, 15213-2582, United States

  • Vall d'Hebron (VHIO)

    Barcelona, Spain