A Trial to Evaluate Efficacy and Safety of Ribociclib With Endocrine Therapy as Adjuvant Treatment in Patients With HR+/HER2- Early Breast Cancer

Summary

A phase III, multicenter, randomized, open-label trial to evaluate the efficacy and safety of ribociclib with Endocrine Therapy (ET) as an adjuvant treatment in women and men with Hormone Receptor positive (HR+), Human Epidermal Growth Factor Receptor 2 negative (HER2-) Early Breast Cancer (EBC).

Timeline

Start

2018-12-07

Primary completion

2030-05-29

Completion

2030-05-29

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.
• Fasching PA, Stroyakovskiy D, Yardley DA, Huang CS, Crown J, Bardia A, Chia S, Im SA, Martin M, Xu B, Loi S, Barrios C, Untch M, Moroose R, Visco F, Hortobagyi GN, Slamon DJ, Fresco R, Zarate JP, Li Z, Waters S, Hurvitz SA. Ribociclib Plus Endocrine Therapy in Hormone Receptor-Positive/ERBB2-Negative Early Breast Cancer: 4-Year Outcomes From the NATALEE Randomized Clinical Trial. JAMA Oncol. 2025 Nov 1;11(11):1364-1372. doi: 10.1001/jamaoncol.2025.3700.
• Slamon D, Lipatov O, Nowecki Z, McAndrew N, Kukielka-Budny B, Stroyakovskiy D, Yardley DA, Huang CS, Fasching PA, Crown J, Bardia A, Chia S, Im SA, Ruiz-Borrego M, Loi S, Xu B, Hurvitz S, Barrios C, Untch M, Moroose R, Visco F, Afenjar K, Fresco R, Severin I, Ji Y, Ghaznawi F, Li Z, Zarate JP, Chakravartty A, Taran T, Hortobagyi G. Ribociclib plus Endocrine Therapy in Early Breast Cancer. N Engl J Med. 2024 Mar 21;390(12):1080-1091. doi: 10.1056/NEJMoa2305488.
• Slamon DJ, Fasching PA, Hurvitz S, Chia S, Crown J, Martin M, Barrios CH, Bardia A, Im SA, Yardley DA, Untch M, Huang CS, Stroyakovskiy D, Xu B, Moroose RL, Loi S, Visco F, Bee-Munteanu V, Afenjar K, Fresco R, Taran T, Chakravartty A, Zarate JP, Lteif A, Hortobagyi GN. Rationale and trial design of NATALEE: a Phase III trial of adjuvant ribociclib + endocrine therapy versus endocrine therapy alone in patients with HR+/HER2- early breast cancer. Ther Adv Med Oncol. 2023 May 29;15:17588359231178125. doi: 10.1177/17588359231178125. eCollection 2023.

Drugs

Indications