New antibody cocktail takes on tough ovarian cancers

NCT ID NCT04590326

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

Summary

This study tests an experimental drug called REGN5668, alone or combined with other drugs, in people with ovarian, fallopian tube, peritoneal, or endometrial cancer. The trial has two parts: first to find the safest dose, then to see if the drug shrinks tumors. About 612 participants will take part.

What this could mean

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

Active substance

REGN5668 (a bispecific antibody) alone or combined with cemiplimab, fianlimab, ubamatamab, or sarilumab

What this could lead to

If successful, this could point toward a new treatment option for ovarian and related cancers that have not responded to standard therapy.

What could go wrong

This is an early-phase trial (Phase 1/2) focused on safety and dosing, so it is not yet known if the drug combination will effectively shrink tumors. Side effects may be significant, and the 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.

endometrial cancer endometrium neoplasm fallopian tube cancer fallopian tube neoplasm ovarian cancer primary peritoneal carcinoma Recurrence

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Centre Francois Baclesse (CFB)

    RECRUITING

    Caen, Normandy, 14076, France

  • Centre Georges Francois Leclerc

    RECRUITING

    Dijon, Bourgogne-Franche-Comté, 21000, France

  • Chao Family Comprehensive Cancer Center

    RECRUITING

    Orange, California, 92868, United States

  • City of Hope Comprehensive Cancer Center

    RECRUITING

    Duarte, California, 91010, United States

  • Ciudad Universitaria

    RECRUITING

    Madrid, 28040, Spain

  • Dana Farber Cancer Institute Brookline Avenue

    RECRUITING

    Boston, Massachusetts, 02215, United States

  • H. Lee Moffitt Cancer Center

    COMPLETED

    Tampa, Florida, 33612, United States

  • Hopital Lyon Sud

    RECRUITING

    Pierre-Bénite, Auvergne-Rhône, 69310, France

  • Hospital Clinico Universitario Santiago de Compostela

    RECRUITING

    Santiago de Compostela, A Coruna, 15706, Spain

  • Hospital Universitario 12 de Octubre Universidad Complutense de Madrid UCM

    RECRUITING

    Madrid, 28041, Spain

  • Hospital Universitario Fundacion Jimenez

    RECRUITING

    Madrid, 28040, Spain

  • Institut Bergonie

    RECRUITING

    Bordeaux, New Aquitaine, 33076, France

  • Institut Catala dOncologia Girona

    RECRUITING

    Girona, 17007, Spain

  • Institut Gustave Roussy

    RECRUITING

    Villejuif, 94805, France

  • Karmanos Cancer Institute

    RECRUITING

    Detroit, Michigan, 48201, United States

  • Massachusetts General Hospital

    RECRUITING

    Boston, Massachusetts, 02114, United States

  • Memorial Sloan Kettering Cancer Center

    RECRUITING

    New York, New York, 10065, United States

  • Perelman School of Medicine at the University of Pennsylvania

    RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

  • Robert H. Lurie Comprehensive Cancer Center of Northwestern University

    RECRUITING

    Chicago, Illinois, 60611, United States

  • Seattle Cancer Care Alliance at South Lake Union - G3630

    RECRUITING

    Seattle, Washington, 98109, United States

  • The City of Hope Orange County Lennar Foundation Cancer Center

    RECRUITING

    Irvine, California, 92618, United States

  • The Ohio State University Wexner Medical Center

    RECRUITING

    Columbus, Ohio, 43210, United States

  • Universitair Ziekenhuis Leuven

    RECRUITING

    Leuven, Vlaams-Brabant, 3000, Belgium

  • University of Chicago Medical Center

    RECRUITING

    Chicago, Illinois, 60637, United States