New drug combo shrinks tumors before surgery in early trial

NCT ID NCT04481113

First seen Jan 30, 2026 · Last updated Jun 10, 2026 · Updated 21 times

Summary

This early-phase study tested the safety and best dose of two drugs, abemaciclib and niraparib, given together before surgery for a common type of breast cancer (HR+ HER2-). The goal was to see if the combination could shrink tumors before they are removed. Only 8 people took part, and the main focus was on side effects and finding the right dose.

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Contacts and locations

Locations

  • OHSU Knight Cancer Institute

    Portland, Oregon, 97239, United States

Conditions

Explore the condition pages connected to this study.