New drug cocktail targets aggressive breast cancer

NCT ID NCT05230810

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

Summary

This study tests a combination of two targeted drugs, tucatinib and alpelisib, in people with a specific genetic mutation (PIK3CA) and HER2-positive advanced breast cancer. About 40 adults whose cancer has spread or cannot be removed will take these pills daily. The goal is to see if the combo is safe and can slow cancer growth.

What this could mean

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

Active substance

Tucatinib and alpelisib (targeted cancer pills), plus fulvestrant (injection) for some patients

What this could lead to

If it works, this could offer a new treatment option for people with a hard-to-treat form of advanced breast cancer.

What could go wrong

This is an early-phase trial with only 40 participants, so results may not apply widely. The drug combination may cause side effects or fail to slow the cancer.

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.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for HER2-POSITIVE METASTATIC BREAST CANCER are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

HER2 positive breast carcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Cancer Care & Hematology-Fort Collins

    Fort Collins, Colorado, 80528, United States

  • Louisiana State University Health Sciences Center

    New Orleans, Louisiana, 70112, United States

  • University of Colorado Cancer Center

    Aurora, Colorado, 80045, United States

  • University of Wisconsin Carbone Cancer Center

    Madison, Wisconsin, 53792, United States