Study of Efficacy and Safety of LEE011 in Men and Postmenopausal Women With Advanced Breast Cancer.

Summary

The main aim of this study was to evaluate the efficacy and safety of adding ribociclib to fulvestrant in men and postmenopausal women with hormone receptor positive (HR+), HER2-negative advanced breast cancer.

Timeline

Start

2015-06-09

Primary completion

2017-11-03

Completion

2023-01-11

Outcome

Met primary endpoint

registry analysis (superiority test); Ribociclib + Fulvestrant vs Placebo + Fulvestrant; p = 0.00000041; Cox Proportional Hazard 0.593 (95% CI 0.480 to 0.732); Log Rank NCT02422615 ↗

paper Median progression-free survival was significantly improved with ribociclib plus fulvestrant versus placebo plus fulvestrant PMID 29860922 ↗

release “MONALEESA-3 showed Kisqali plus fulvestrant significantly prolonged progression-free survival (PFS) compared to fulvestrant alone in postmenopausal women” novartis.com ↗

Publications

• Ji Y, Wang C, Combes FP, Ho YY, Fasching PA, Untch M, Zarate JP, Crown J. Quantitative Pharmacology Justifying Ribociclib Dose in Early Breast Cancer. Clin Pharmacokinet. 2026 Jun 23. doi: 10.1007/s40262-026-01643-3. Online ahead of print.
• Hart LL, Im SA, Tolaney SM, Campone M, Pluard T, Sousa B, Freyer G, Decker T, Kalinsky K, Sopher G, Gao M, Hu H, Kuemmel S. Efficacy, safety, and patient-reported outcomes across young to older age groups of patients with HR+/HER2- advanced breast cancer treated with ribociclib plus endocrine therapy in the randomized MONALEESA-2, -3, and -7 trials. Eur J Cancer. 2025 Feb 25;217:115225. doi: 10.1016/j.ejca.2025.115225. Epub 2025 Jan 8.
• Andre F, Su F, Solovieff N, Hortobagyi G, Chia S, Neven P, Bardia A, Tripathy D, Lu YS, Lteif A, Taran T, Babbar N, Slamon D, Arteaga CL. Pooled ctDNA analysis of MONALEESA phase III advanced breast cancer trials. Ann Oncol. 2023 Nov;34(11):1003-1014. doi: 10.1016/j.annonc.2023.08.011. Epub 2023 Sep 5.
• Neven P, Fasching PA, Chia S, Jerusalem G, De Laurentiis M, Im SA, Petrakova K, Bianchi GV, Martin M, Nusch A, Sonke GS, De la Cruz-Merino L, Beck JT, Zarate JP, Wang Y, Chakravartty A, Wang C, Slamon DJ. Updated overall survival from the MONALEESA-3 trial in postmenopausal women with HR+/HER2- advanced breast cancer receiving first-line ribociclib plus fulvestrant. Breast Cancer Res. 2023 Aug 31;25(1):103. doi: 10.1186/s13058-023-01701-9.
• Ji Y, Yartsev V, Quinlan M, Serra P, Wang Y, Chakraborty A, Miller M. Justifying Ribociclib Dose in Patients with Advanced Breast Cancer with Renal Impairment Based on PK, Safety, and Efficacy Data: An Innovative Approach Integrating Data from a Dedicated Renal Impairment Study and Oncology Clinical Trials. Clin Pharmacokinet. 2023 Mar;62(3):493-504. doi: 10.1007/s40262-022-01206-2. Epub 2023 Feb 17.
• Burris HA, Chan A, Bardia A, Thaddeus Beck J, Sohn J, Neven P, Tripathy D, Im SA, Chia S, Esteva FJ, Hart L, Zarate JP, Ridolfi A, Lorenc KR, Yardley DA. Safety and impact of dose reductions on efficacy in the randomised MONALEESA-2, -3 and -7 trials in hormone receptor-positive, HER2-negative advanced breast cancer. Br J Cancer. 2021 Aug;125(5):679-686. doi: 10.1038/s41416-021-01415-9. Epub 2021 Jun 22.
• Slamon DJ, Neven P, Chia S, Jerusalem G, De Laurentiis M, Im S, Petrakova K, Valeria Bianchi G, Martin M, Nusch A, Sonke GS, De la Cruz-Merino L, Beck JT, Ji Y, Wang C, Deore U, Chakravartty A, Zarate JP, Taran T, Fasching PA. Ribociclib plus fulvestrant for postmenopausal women with hormone receptor-positive, human epidermal growth factor receptor 2-negative advanced breast cancer in the phase III randomized MONALEESA-3 trial: updated overall survival. Ann Oncol. 2021 Aug;32(8):1015-1024. doi: 10.1016/j.annonc.2021.05.353. Epub 2021 Jun 5.
• Prat A, Chaudhury A, Solovieff N, Pare L, Martinez D, Chic N, Martinez-Saez O, Braso-Maristany F, Lteif A, Taran T, Babbar N, Su F. Correlative Biomarker Analysis of Intrinsic Subtypes and Efficacy Across the MONALEESA Phase III Studies. J Clin Oncol. 2021 May 1;39(13):1458-1467. doi: 10.1200/JCO.20.02977. Epub 2021 Mar 26.
• Slamon DJ, Neven P, Chia S, Fasching PA, De Laurentiis M, Im SA, Petrakova K, Bianchi GV, Esteva FJ, Martin M, Nusch A, Sonke GS, De la Cruz-Merino L, Beck JT, Pivot X, Sondhi M, Wang Y, Chakravartty A, Rodriguez-Lorenc K, Taran T, Jerusalem G. Overall Survival with Ribociclib plus Fulvestrant in Advanced Breast Cancer. N Engl J Med. 2020 Feb 6;382(6):514-524. doi: 10.1056/NEJMoa1911149. Epub 2019 Dec 11.
• Yardley DA. MONALEESA clinical program: a review of ribociclib use in different clinical settings. Future Oncol. 2019 Aug;15(23):2673-2686. doi: 10.2217/fon-2019-0130. Epub 2019 Jul 15.
• Slamon DJ, Neven P, Chia S, Fasching PA, De Laurentiis M, Im SA, Petrakova K, Bianchi GV, Esteva FJ, Martin M, Nusch A, Sonke GS, De la Cruz-Merino L, Beck JT, Pivot X, Vidam G, Wang Y, Rodriguez Lorenc K, Miller M, Taran T, Jerusalem G. Phase III Randomized Study of Ribociclib and Fulvestrant in Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative Advanced Breast Cancer: MONALEESA-3. J Clin Oncol. 2018 Aug 20;36(24):2465-2472. doi: 10.1200/JCO.2018.78.9909. Epub 2018 Jun 3.

Drugs

Evaluation	Drug	Modality	Dose	Route
Subject	Ribociclib	Small molecule	600 mg	Oral
Background	Fulvestrant	Small molecule	500 mg	Intramuscular

Indications