New drug cocktail shows promise in shrinking breast tumors before surgery

NCT ID NCT04481113

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

Summary

This early-phase study tested two drugs, abemaciclib and niraparib, given together before surgery in 8 people with hormone receptor-positive, HER2-negative breast cancer. The goal was to find the best dose and see if the combination could shrink tumors safely. The study focused on side effects and tumor response, offering a potential new approach to make surgery more effective.

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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

  • OHSU Knight Cancer Institute

    Portland, Oregon, 97239, United States

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