New hope for HER2+ breast cancer patients who stopped responding to standard therapy

NCT ID NCT07366840

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether a drug called RC48, combined with chemotherapy, works better than standard treatments for women with advanced HER2-positive breast cancer whose disease has progressed after prior therapy. About 268 participants will be randomly assigned to receive either RC48 plus chemo or standard trastuzumab/inetetamab plus chemo. The main goal is to see how long the cancer stays under control.

What this could mean

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

Active substance
Disitamab vedotin (RC48) combined with gemcitabine or capecitabine, with or without trastuzumab or inetetamab
What this could lead to
If successful, this could offer a new treatment option for HER2-positive advanced breast cancer patients whose disease has worsened after prior antibody-drug conjugate therapy.
What could go wrong
This is an early-phase 2/3 trial with only 268 participants, so results may not apply to all patients. The combination therapy may cause side effects like nerve damage, low blood counts, or heart issues.

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Conditions

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As listed by the trial registrant

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