New test may predict which breast cancer patients benefit from targeted drug

NCT ID NCT05340413

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

Summary

This study looked at whether a test called RAD51-foci can predict how well the drug olaparib works in people with advanced HER2-negative breast cancer who have certain gene mutations (BRCA1, BRCA2, PALB2, RAD51C, or RAD51D). About 65 participants received olaparib, and researchers measured tumor response. The goal is to better match patients to effective treatment and avoid unnecessary side effects.

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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

  • H Clinic de Barcelona

    Barcelona, Spain

  • H Vall d Hebron

    Barcelona, Spain

  • H. 12 de Octubre

    Madrid, Spain

  • H. C. U. Valencia

    Valencia, Spain

  • H. San Cecilio

    Granada, Spain

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