New hope for tough breast cancer: targeted drug HLX43 enters phase 2 trial

NCT ID NCT07459738

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

Summary

This phase 2 trial tests a new drug called HLX43 in 60 people with a common type of advanced breast cancer (HR+ HER2-) that has worsened despite standard hormone therapy. The drug is an antibody-drug conjugate that targets PD-L1 to deliver chemotherapy directly to cancer cells. The goal is to see if it can shrink tumors or slow cancer growth.

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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 hormone receptor-positive breast cancer

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: •••••@•••••