Can one targeted drug still work after another fails? new trial aims to find out

NCT ID NCT06263543

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

Summary

This Phase 2 trial is testing whether the drug sacituzumab govitecan (Trodelvy) can shrink tumors in people with a specific type of advanced breast cancer (HR+/HER2 low or ultra low) who have already received another targeted drug called T-DXd. The study will enroll 75 participants and measure how many respond to treatment. The goal is to see if using these drugs in sequence can help control the cancer longer.

What this could mean

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

Active substance

sacituzumab govitecan (Trodelvy)

What this could lead to

If successful, this could show that sacituzumab govitecan remains effective even after prior treatment with T-DXd, offering a new treatment sequence option for people with this type of breast cancer.

What could go wrong

This is a small, early-phase (Phase 2) study with only 75 participants. It may not show enough benefit, or the drug could cause side effects like diarrhea or low blood cell counts. 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.

breast cancer breast carcinoma breast neoplasm Her2-receptor negative breast cancer hormone receptor-positive breast cancer

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: •••••@•••••

  • Contact

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

Locations

  • Miami Cancer Institute at Baptist Health, Inc.

    RECRUITING

    Miami, Florida, 33176, United States

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

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

  • UCLA Jonsson Comprehensive Cancer Center

    NOT_YET_RECRUITING

    Los Angeles, California, 90404, United States

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

  • Winship Cancer Institute at Emory University

    RECRUITING

    Atlanta, Georgia, 30322, United States

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