CDK4/6 drugs plus radiation for locally advanced ER-positive and triple-negative breast cancer

Project 3: Credentialing CDK 4/6 inhibitors used with radiation as an effective treatment strategy in locally advanced ER+ and TNBC

['FUNDING_OTHER'] · UNIVERSITY OF MICHIGAN AT ANN ARBOR · NIH-11180419

This project tests whether adding CDK4/6 drugs to radiation helps women with locally advanced ER-positive or triple-negative breast cancer reduce the chance the cancer comes back.

Quick facts

Phase['FUNDING_OTHER']
Study typeNih_funding
SexAll
SponsorUNIVERSITY OF MICHIGAN AT ANN ARBOR (nih funded)
Locations1 site (ANN ARBOR, UNITED STATES)
Trial IDNIH-11180419 on ClinicalTrials.gov

What this research studies

Researchers are studying whether drugs called CDK4/6 inhibitors can make radiation therapy more effective against locally advanced ER-positive and triple-negative breast cancers. They will use laboratory experiments, animal models, and analyses of tumor samples to see how the drugs change cancer cell response to radiation and to check for safety. The team aims to validate dosing and timing so the combination could be given safely alongside standard radiation. If findings look promising, they will inform clinical trials that could offer the combination to patients at participating centers.

Who could benefit from this research

Good fit: Ideal candidates are women with locally advanced breast cancer—especially ER-positive cancers with multiple positive lymph nodes or triple-negative breast cancer—who are receiving or planned to receive radiation therapy.

Not a fit: Patients with early-stage, node-negative breast cancer, cancers other than ER-positive or triple-negative, or those unable to take CDK4/6 inhibitors are unlikely to benefit from this work.

Why it matters

Potential benefit: If successful, this approach could lower local recurrence rates and improve survival for women with high-risk node-positive ER-positive or triple-negative breast cancer.

How similar studies have performed: CDK4/6 inhibitors are proven effective in metastatic ER-positive breast cancer, but combining them with radiation is relatively new and mainly supported by preclinical and early-phase studies.

Where this research is happening

ANN ARBOR, UNITED STATES

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.

View on NIH RePORTER →

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.