A Study of Abemaciclib (LY2835219) Combined With Fulvestrant in Women With Hormone Receptor Positive HER2 Negative Breast Cancer

Summary

The main purpose of this study is to compare progression-free survival for women with hormone receptor positive (HR+), human epidermal growth factor receptor (HER2) negative advanced breast cancer receiving either abemaciclib + fulvestrant or fulvestrant alone. Participants will be randomized to abemaciclib or placebo in a 2:1 ratio. The study will last about 9 months for each participant. For the endocrine naïve cohort, all participants will received abemaciclib + fulvestrant.

Timeline

Start

2014-07-22

Primary completion

2017-02-14

Completion

2027-12

Publications

• Neven P, Rugo HS, Tolaney SM, Iwata H, Toi M, Goetz MP, Kaufman PA, Lu Y, Haddad N, Hurt KC, Sledge GW Jr. Abemaciclib plus fulvestrant in hormone receptor-positive, human epidermal growth factor receptor 2-negative advanced breast cancer in premenopausal women: subgroup analysis from the MONARCH 2 trial. Breast Cancer Res. 2021 Aug 23;23(1):87. doi: 10.1186/s13058-021-01463-2.
• Inoue K, Masuda N, Iwata H, Takahashi M, Ito Y, Miyoshi Y, Nakayama T, Mukai H, van der Walt JS, Mori J, Sakaguchi S, Kawaguchi T, Tanizawa Y, Llombart-Cussac A, Sledge GW Jr, Toi M. Japanese subpopulation analysis of MONARCH 2: phase 3 study of abemaciclib plus fulvestrant for treatment of hormone receptor-positive, human epidermal growth factor receptor 2-negative breast cancer that progressed on endocrine therapy. Breast Cancer. 2021 Sep;28(5):1038-1050. doi: 10.1007/s12282-021-01239-8. Epub 2021 Apr 1.
• Goetz MP, Okera M, Wildiers H, Campone M, Grischke EM, Manso L, Andre VAM, Chouaki N, San Antonio B, Toi M, Sledge GW Jr. Safety and efficacy of abemaciclib plus endocrine therapy in older patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative advanced breast cancer: an age-specific subgroup analysis of MONARCH 2 and 3 trials. Breast Cancer Res Treat. 2021 Apr;186(2):417-428. doi: 10.1007/s10549-020-06029-y. Epub 2021 Jan 3.
• Sledge GW Jr, Toi M, Neven P, Sohn J, Inoue K, Pivot X, Burdaeva O, Okera M, Masuda N, Kaufman PA, Koh H, Grischke EM, Conte P, Lu Y, Barriga S, Hurt K, Frenzel M, Johnston S, Llombart-Cussac A. The Effect of Abemaciclib Plus Fulvestrant on Overall Survival in Hormone Receptor-Positive, ERBB2-Negative Breast Cancer That Progressed on Endocrine Therapy-MONARCH 2: A Randomized Clinical Trial. JAMA Oncol. 2020 Jan 1;6(1):116-124. doi: 10.1001/jamaoncol.2019.4782.
• Sledge GW Jr, Toi M, Neven P, Sohn J, Inoue K, Pivot X, Burdaeva O, Okera M, Masuda N, Kaufman PA, Koh H, Grischke EM, Frenzel M, Lin Y, Barriga S, Smith IC, Bourayou N, Llombart-Cussac A. MONARCH 2: Abemaciclib in Combination With Fulvestrant in Women With HR+/HER2- Advanced Breast Cancer Who Had Progressed While Receiving Endocrine Therapy. J Clin Oncol. 2017 Sep 1;35(25):2875-2884. doi: 10.1200/JCO.2017.73.7585. Epub 2017 Jun 3.

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Indications