Experimental cancer drug TNG908 tested in patients with MTAP gene deletion

NCT ID NCT05275478

First seen Nov 15, 2025 · Last updated Jun 23, 2026 · Updated 29 times

Summary

This study tested an experimental drug called TNG908 in people with advanced solid tumors that lack the MTAP gene. The drug works by blocking a protein called PRMT5, which these cancer cells need to grow. The trial aimed to find a safe dose and see if the drug could shrink tumors, but it was stopped early.

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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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Contacts and locations

Locations

  • Carle Cancer Center

    Urbana, Illinois, 61801, United States

  • Centre Léon Bérard

    Lyon, 69373, France

  • Dana Farber Cancer Institute

    Boston, Massachusetts, 02215, United States

  • EDOG Institut de Cancerologie de l'Ouest

    Saint-Herblain, 44805, France

  • Florida Cancer Specialists & Research Institute

    Lake Mary, Florida, 32746, United States

  • Grand Valley Oncology

    Grand Junction, Colorado, 81505, United States

  • Institut Bergonié

    Bordeaux, 33000, France

  • Institut Oncopole Claudius Regaud

    Toulouse, 31059, France

  • Institute Gustav Roussy

    Villejuif, 94805, France

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10022, United States

  • NEXT Oncology

    Fairfax, Virginia, 22031, United States

  • NYU Langone Health

    New York, New York, 10016, United States

  • Northwestern University

    Chicago, Illinois, 60611, United States

  • Sarah Cannon Research Institute at HealthONE

    Denver, Colorado, 80218, United States

  • Sarah Cannon Tennessee Oncology

    Nashville, Tennessee, 37203, United States

  • The University of Texas MD Anderson Cancer Center

    Houston, Texas, 77030, United States

  • University of California Los Angeles

    Los Angeles, California, 90095, United States

  • University of California San Francisco

    San Francisco, California, 94143, United States

  • Washington University

    St Louis, Missouri, 63110, United States

What this could mean

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

Active substance

TNG908 (a PRMT5 inhibitor taken orally)

What this could lead to

If successful, this could point toward a new treatment option for certain hard-to-treat cancers that lack the MTAP gene.

What could go wrong

The trial was terminated early, so results are limited. It was an early-phase study, so even if safe, effectiveness is not guaranteed.

Conditions

The condition(s) this trial relates to.

cholangiocarcinoma glioblastoma mesothelioma neurofibrosarcoma sarcoma

As listed by the trial registrant

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