New targeted therapy combo shows promise for HER2+ breast cancer

NCT ID NCT05319873

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

Summary

This study tests a combination of targeted drugs (ribociclib, tucatinib, trastuzumab, with or without fulvestrant) for HER2-positive breast cancer. In the first part, it looks at safety in patients whose cancer has spread. In the second part, it compares these drugs to standard chemotherapy before surgery in early-stage patients. The goal is to see if the new combo can shrink tumors more effectively and reduce the amount of tissue that needs to be removed.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • UCLA / Jonsson Comprehensive Cancer Center

    Los Angeles, California, 90095, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.