Pembrolizumab and Tamoxifen With or Without Vorinostat for the Treatment of Estrogen Receptor Positive Breast Cancer

Summary

This phase II trial studies how well pembrolizumab and tamoxifen with or without vorinostat work for the treatment of estrogen receptor positive breast cancer. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Estrogen can cause the growth of breast cancer cells. Hormone therapy with tamoxifen may may fight breast cancer by blocking the use of estrogen by the tumor cells. Vorinostat may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. This trial is being done to find a drug combination to better control estrogen receptor positive breast cancer and reduce the number of pills taken.

Timeline

Start

2021-03-11

Primary completion

2023-06-15

Completion

2023-06-15

Drugs

Indications