Safety and Efficacy Study of Pembrolizumab (MK-3475) in Combination With Chemotherapy as Neoadjuvant Treatment for Participants With Triple Negative Breast Cancer (TNBC) (MK-3475-173/KEYNOTE-173)

Summary

The purpose of this study is to evaluate the safety, tolerability and clinical activity of pembrolizumab (MK-3475) in combination with six chemotherapy regimens as neoadjuvant treatment for participants with triple negative breast cancer (TNBC).

Timeline

Start

2016-01-27

Primary completion

2018-05-31

Completion

2019-11-18

Publications

• Results Schmid P, Salgado R, Park YH, Munoz-Couselo E, Kim SB, Sohn J, Im SA, Foukakis T, Kuemmel S, Dent R, Yin L, Wang A, Tryfonidis K, Karantza V, Cortes J, Loi S. Pembrolizumab plus chemotherapy as neoadjuvant treatment of high-risk, early-stage triple-negative breast cancer: results from the phase 1b open-label, multicohort KEYNOTE-173 study. Ann Oncol. 2020 May;31(5):569-581. doi: 10.1016/j.annonc.2020.01.072. Epub 2020 Feb 14.
• Dent R, Cortes J, Park YH, Munoz-Couselo E, Kim SB, Sohn J, Im SA, Holgado E, Foukakis T, Kummel S, Yearley J, Wang A, Nebozhyn M, Huang L, Cristescu R, Jelinic P, Karantza V, Schmid P. Molecular determinants of response to neoadjuvant pembrolizumab plus chemotherapy in patients with high-risk, early-stage, triple-negative breast cancer: exploratory analysis of the open-label, multicohort phase 1b KEYNOTE-173 study. Breast Cancer Res. 2025 Mar 11;27(1):35. doi: 10.1186/s13058-024-01946-y.
• Perez-Garcia J, Soberino J, Racca F, Gion M, Stradella A, Cortes J. Atezolizumab in the treatment of metastatic triple-negative breast cancer. Expert Opin Biol Ther. 2020 Sep;20(9):981-989. doi: 10.1080/14712598.2020.1769063. Epub 2020 May 25.

Drugs

Indications