New Two-Drug immune attack launched against tough cancers

NCT ID NCT03860272

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

Summary

This early-phase study tests two experimental immunotherapy drugs — botensilimab and balstilimab — alone and together in people with advanced solid tumors that have stopped responding to standard treatments. The main goals are to check safety, find the right dose, and look for early signs of tumor shrinkage. About 500 participants with various cancers (including lung, ovarian, and colorectal) are taking part across multiple centers.

What this could mean

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

Active substance

Botensilimab (AGEN1181) and Balstilimab (AGEN2034)

What this could lead to

If this works, it could point toward a new treatment option for several advanced cancers that have not responded to standard therapy.

What could go wrong

This is a very early Phase 1 trial, so the main goals are safety and dosing — not yet proving the drugs shrink tumors. The combination may cause significant immune-related side effects, and many early-stage cancer drugs never make it to approval.

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.

angiosarcoma cancer colorectal cancer colorectal carcinoma endometrial cancer endometrium neoplasm fibrolamellar hepatocellular carcinoma neoplasm non-small cell lung carcinoma ovarian cancer prostate cancer

As listed by the trial registrant

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

Contacts and locations

Locations

  • Beth Israel Deaconess Medical Center

    Boston, Massachusetts, 02215, United States

  • City of Hope Comprehensive Cancer Center

    Duarte, California, 91010, United States

  • Columbia University Medical Center

    New York, New York, 10032, United States

  • Dana-Farber Cancer Institute

    Boston, Massachusetts, 02215, United States

  • HonorHealth Research Institute

    Scottsdale, Arizona, 85258, United States

  • Icahn School of Medicine at Mount Sinai

    New York, New York, 10029, United States

  • MD Anderson Cancer Center

    Houston, Texas, 77030, United States

  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065, United States

  • Providence Portland Cancer Center

    Portland, Oregon, 97213, United States

  • Royal Marsden Hospital NHS Foundation Trust

    London, SW3 6JJ, United Kingdom

  • Saint John's Cancer Institute

    Santa Monica, California, 90404, United States

  • The Angeles Clinic & Research Institute, a Cedars-Sinai Affiliate

    Los Angeles, California, 90025, United States

  • The University of Texas Health Science Center at San Antonio

    San Antonio, Texas, 78229, United States

  • UCLA Santa Monica Hematology Oncology

    Los Angeles, California, 90095, United States

  • University of Colorado

    Aurora, Colorado, 80045, United States

  • University of Miami Sylvester Comprehensive Cancer Center

    Miami, Florida, 33136, United States

  • University of Southern California Norris Comprehensive Cancer Center

    Los Angeles, California, 90033, United States

  • Yale Cancer Center

    New Haven, Connecticut, 06520, United States