Two Different Schedules of Palbociclib + Second Line Endocrine Therapy in Estrogen Receptor Positive, HER2 Neg Advanced/Metastatic Breast Cancer

Summary

The purpose of this study is to determine if the combination of endocrine therapy and Palbociclib at a daily dose of 100 mg will result in a better response to therapy with fewer dose interruptions than the proposed dosing regimen of 125 mg daily for 21 days out of a 28 day cycle in combination with endocrine therapy.

Timeline

Start

2016-04-08

Primary completion

2018-08-15

Completion

2023-11-29

Publications

• Results Joy AA, Cheng N, Gelmon KA, Mates M, Desbiens C, Clemons M, Taylor S, Lemieux J, DeLuca A, Gasparini L, Lungu I, Soave D, Fortuna A, Pugh T, Liu SS, Bartlett JMS, Awadalla P, Spears M, Chen BE, Bayani J, Parulekar WR. Continuous versus Standard Palbociclib Treatment and Molecular Profiling of Solid Tissues and Liquid Biopsies in the CCTG MA.38 Trial in Advanced Breast Cancer. Cancer Res Commun. 2025 Nov 1;5(11):1998-2011. doi: 10.1158/2767-9764.CRC-25-0346.

Drugs

Indications