New hope for BRCA-Linked breast cancer: targeted drug talazoparib under study

NCT ID NCT03990896

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

Summary

This phase 2 trial is testing the drug talazoparib (Talzenna) in 30 people with metastatic breast cancer that has spread beyond the breast. The cancer must have a specific BRCA gene mutation found only in the tumor (not inherited). Talazoparib works by blocking proteins that help repair DNA in cancer cells, which may cause the cells to die. The study measures how long the cancer stays under control and whether tumors shrink.

What this could mean

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

Active substance

Talazoparib (Talzenna), a PARP inhibitor drug

What this could lead to

If successful, this could provide a targeted treatment option for people with metastatic breast cancer who have BRCA mutations in their tumor cells, potentially slowing disease progression.

What could go wrong

This is a small, early-phase trial with only 30 participants, so results may not apply to everyone. The drug may not work for all patients, and side effects like fatigue or nausea 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 cancer breast neoplasm

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

  • Emory University Winship Cancer Institute

    RECRUITING

    Atlanta, Georgia, 30322, United States

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

    Contact

  • MD Anderson Cancer Center

    RECRUITING

    Houston, Texas, 77030, United States

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

    Contact

  • Massachusetts General Hospital Cancer Center

    RECRUITING

    Boston, Massachusetts, 02114, United States

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

    Contact

  • Northwestern University

    RECRUITING

    Chicago, Illinois, 60611, United States

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

    Contact

  • UCSF Medical Center-Mission Bay/Benioff Children's Hospital

    RECRUITING

    San Francisco, California, 94143, United States

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

    Contact

  • Vanderbilt University

    RECRUITING

    Nashville, Tennessee, 37232-6307, United States

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

  • Weill Cornell Medicine

    RECRUITING

    New York, New York, 10065, United States

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

    Contact