PMID- 35212906 OWN - NLM STAT- MEDLINE DCOM- 20220412 LR - 20220531 IS - 1573-7217 (Electronic) IS - 0167-6806 (Linking) VI - 193 IP - 1 DP - 2022 May TI - Ribociclib plus letrozole in male patients with hormone receptor-positive, human epidermal growth factor receptor 2-negative advanced breast cancer: subgroup analysis of the phase IIIb CompLEEment-1 trial. PG - 95-103 LID - 10.1007/s10549-022-06543-1 [doi] AB - PURPOSE: CompLEEment-1 (NCT02941926) is a single-arm, open-label, multicentre phase IIIb study investigating the safety and efficacy of ribociclib plus letrozole (RIB + LET) in a large, diverse cohort who have not received prior endocrine therapy (ET) for advanced disease. We present an exploratory analysis of male patients. METHODS: Eligible patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer (ABC), who had no prior ET and /= 3 neutropenia in males (41.0%) was lower than in the overall population (57.2%). Median follow-up was 25.4 months; median time to progression was not reached in males versus 27.1 months for the overall population. CONCLUSION: The clinical benefit and overall response rates in males were consistent with the overall population. This analysis demonstrates the safety and efficacy of ribociclib in a close-to-real-world setting, supporting the use of RIB + LET in male patients with HR+, HER2- ABC. TRIAL REGISTRATION NUMBER: NCT02941926 (Registered 2016). CI - (c) 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Campone, Mario AU - Campone M AUID- ORCID: 0000-0002-5196-5908 AD - Western Cancer Institute, Nantes, France. mario.campone@ico.unicancer.fr. FAU - De Laurentiis, Michelino AU - De Laurentiis M AD - Istituto Nazionale Tumori IRCCS "Fondazione Pascale", Naples, Italy. FAU - Zamagni, Claudio AU - Zamagni C AD - IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy. FAU - Kudryavcev, Igor AU - Kudryavcev I AD - Kaluga Regional Clinical Oncology Center, Kaluga, Russian Federation. FAU - Agterof, Mariette AU - Agterof M AD - St. Antonius Hospital, Utrecht/Nieuwegein, The Netherlands. FAU - Brown-Glaberman, Ursa AU - Brown-Glaberman U AD - University of New Mexico Cancer Center, Albuquerque, NM, USA. FAU - Palacova, Marketa AU - Palacova M AD - Masaryk Memorial Cancer Institute, Brno, Czech Republic. FAU - Chatterjee, Sanjoy AU - Chatterjee S AD - Tata Medical Center, Kolkata, India. FAU - Menon-Singh, Lakshmi AU - Menon-Singh L AD - Novartis Pharmaceuticals, East Hanover, NJ, USA. FAU - Wu, Jiwen AU - Wu J AD - Novartis Pharmaceuticals, East Hanover, NJ, USA. FAU - Martin, Miguel AU - Martin M AD - Gregorio Maranon General University Hospital, Madrid, Spain. LA - eng SI - ClinicalTrials.gov/NCT02941926 PT - Clinical Trial, Phase III PT - Journal Article PT - Multicenter Study DEP - 20220225 PL - Netherlands TA - Breast Cancer Res Treat JT - Breast cancer research and treatment JID - 8111104 RN - 0 (Aminopyridines) RN - 0 (Purines) RN - 0 (Receptors, Estrogen) RN - 0 (Receptors, Progesterone) RN - 7LKK855W8I (Letrozole) RN - EC 2.7.10.1 (ERBB2 protein, human) RN - EC 2.7.10.1 (Receptor, ErbB-2) RN - TK8ERE8P56 (ribociclib) SB - IM MH - Aminopyridines MH - *Antineoplastic Combined Chemotherapy Protocols/adverse effects MH - *Breast Neoplasms, Male/drug therapy MH - Humans MH - Letrozole/therapeutic use MH - Male MH - Neutropenia/drug therapy/etiology MH - Purines MH - Receptor, ErbB-2/genetics/metabolism MH - Receptors, Estrogen/metabolism MH - Receptors, Progesterone/metabolism OTO - NOTNLM OT - Advanced breast cancer OT - Male breast cancer OT - Men OT - Real-world evidence OT - Ribociclib EDAT- 2022/02/26 06:00 MHDA- 2022/04/13 06:00 CRDT- 2022/02/25 12:24 PHST- 2021/10/21 00:00 [received] PHST- 2022/02/10 00:00 [accepted] PHST- 2022/02/26 06:00 [pubmed] PHST- 2022/04/13 06:00 [medline] PHST- 2022/02/25 12:24 [entrez] AID - 10.1007/s10549-022-06543-1 [pii] AID - 10.1007/s10549-022-06543-1 [doi] PST - ppublish SO - Breast Cancer Res Treat. 2022 May;193(1):95-103. doi: 10.1007/s10549-022-06543-1. Epub 2022 Feb 25.