New drug cocktail targets tough breast cancer

NCT ID NCT03901469

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

Summary

This study tested a combination of two drugs, ZEN003694 and talazoparib, in people with triple-negative breast cancer who do not have BRCA gene mutations. The trial aimed to see if the combo could shrink tumors or stop them from growing. It included 115 participants but was terminated early, so final results are not available.

What this could mean

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

Active substance

ZEN003694 (a BET inhibitor) combined with talazoparib (a PARP inhibitor)

What this could lead to

If successful, this combination could offer a new treatment option for triple-negative breast cancer patients who don't have BRCA mutations.

What could go wrong

The trial was terminated early, so results are limited. It was a phase 2 study, meaning it's still early and may not lead to a proven treatment. Side effects from the drug combination are possible.

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 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

  • Affliated Hospital of Jining Medical University

    Jining, Shandong, 272000, China

  • Banner MD Anderson Cancer Center

    Gilbert, Arizona, 85234, United States

  • Dana Farber Cancer Institute

    Boston, Massachusetts, 02115, United States

  • Emory University Winship Cancer Institute

    Atlanta, Georgia, 30322, United States

  • Hunan Cancer Hospital

    Changsha, Hunan, 410000, China

  • Institut Jules Bordet

    Anderlecht, 1070, Belgium

  • MD Anderson

    Houston, Texas, 77030, United States

  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065, United States

  • START Madrid

    Madrid, 28050, Spain

  • Sun Yat-sen Memorial Hospital, Sun Yat-sen University

    Guangzhou, Guangdong, 510289, China

  • Sun Yat-sen University Cancer Center

    Guangzhou, Guangdong, 510060, China

  • Tennessee Oncology (Sarah Cannon)

    Nashville, Tennessee, 37203, United States

  • The First Affiliated Hosptial of Bengbu Medical College

    Bengbu, Anhui, 233000, China

  • The Second People's Hospital of Neijiang

    Neijiang, Sichuan, 641100, China

  • Tianjing Medical University Cancer Institute & Hospital

    Tianjin, Tianjin Municipality, 300060, China

  • UZ Leuven

    Leuven, 3000, Belgium

  • University of Kansas Cancer Center

    Westwood, Kansas, 66203, United States

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104, United States

  • Vall d'Hebron Institute of Oncology (VHIO)

    Barcelona, 08035, Spain