New drug duo aims to shrink breast tumors before surgery

NCT ID NCT07393425

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

Summary

This study tests whether a combination of two targeted drugs (trastuzumab deruxtecan and pertuzumab) can shrink or eliminate HER2-positive breast tumors before surgery. About 50 women with stage II-III breast cancer will receive the drugs for three cycles. If the tumor responds well, they continue the same treatment; if not, they switch to a standard chemotherapy regimen. The goal is to see how many patients have no cancer left at the time of surgery.

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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 HER2 positive breast carcinoma

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

  • Shanghai Jiaotong University School of Medicine affiliated Ruijin Hospital

    RECRUITING

    Shanghai, Shanghai Municipality, China

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