New drug combo aims to shrink HER2 breast tumors before surgery

NCT ID NCT07246317

First seen Nov 25, 2025 · Last updated Jun 19, 2026 · Updated 24 times

Summary

This phase 2 trial tests whether adding an experimental immunotherapy (QL1706) to standard chemotherapy and targeted drugs can better eliminate HER2-positive breast cancer before surgery. About 188 people with early or locally advanced disease will be randomly assigned to receive either the new combo or standard chemo plus targeted therapy. The main goal is to see if more patients have no cancer left at surgery (pathological complete response).

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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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Contacts and locations

Study contacts

  • Contact

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

Locations

  • Affiliated Hospital of Jiaxing University

    Jiaxing, Zhejiang, China

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

    Contact

  • Guangdong Provincial People's Hospital

    Guangzhou, Guangdong, China

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

    Contact

  • Nanyang Central Hospital

    Nanyang, Henan, China

    Contact

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

  • The First Affiliated Hospital of Henan University of Science & Technology

    Luoyang, Henan, China

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

    Contact

  • The First Affiliated Hospital, Sun Yat-sen University (FAH-SYSU)

    Guangzhou, Guangdong, China

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

    Contact

  • The Fourth Hospital of Hebei Medical University

    Shijiazhuang, Hebei, China

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

    Contact

  • The West China Second University Hospital of Sichuan University (WCSUH- SCU)

    Chengdu, Sichuan, China

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

    Contact

  • Tianjin Medical University Cancer Institute and Hospital

    Tianjin, Tianjin Municipality, China

    Contact

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

    Contact

What this could mean

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

Active substance

QL1706 injection (an experimental immunotherapy) combined with trastuzumab, pertuzumab, and docetaxel

What this could lead to

If it works, this could offer a more effective pre-surgery treatment option for HER2-positive breast cancer, potentially improving long-term outcomes.

What could go wrong

This is an early phase 2 trial with only 188 participants, so results may not apply to everyone. Adding QL1706 could also increase side effects like immune-related reactions.

Conditions

The condition(s) this trial relates to.

breast neoplasm

As listed by the trial registrant

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