New drug combo aims to tackle Hard-to-Treat HER2 cancers

NCT ID NCT07646626

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Phase 2 trial is testing two experimental drugs (SSGJ-705 and SSGJ-612) with or without chemotherapy in 150 adults with advanced HER2-positive solid tumors, including colorectal, bladder, breast, bile duct, and stomach cancers. The goal is to see if the combination can shrink tumors and control the disease longer than current options. Participants must have tumors that cannot be removed by surgery or have spread.

What this could mean

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

Active substance

SSGJ-705 (a bispecific antibody targeting PD-1 and HER2) and SSGJ-612 (an anti-HER2 antibody), with or without chemotherapy

What this could lead to

If successful, this combination could offer a new treatment option for people with advanced HER2-positive cancers that have stopped responding to standard therapies.

What could go wrong

This is a mid-stage (Phase 2) trial with only 150 participants, so results may not apply to everyone. The drugs may cause side effects or fail to shrink tumors in many 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.

biliary tract cancer breast cancer colorectal adenocarcinoma gastric cancer gastroesophageal junction adenocarcinoma urothelial 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

  • Zhejiang Cancer Hospital

    RECRUITING

    Hangzhou, Zhejiang, China

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