Safety and Efficacy of Ribociclib in Combination with Letrozole in Patients with HR+, HER2- Advanced Breast Cancer : Results from the Italian Subpopulation of Phase 3b CompLEEment-1 Study

© 2022. The Author(s)..

BACKGROUND: Ribociclib plus letrozole demonstrated manageable safety and efficacy profiles in hormone receptor-positive (HR+), human epidermal growth factor receptor-2-negative (HER2-) advanced breast cancer (ABC) in the Phase 3b CompLEEment-1 trial.

OBJECTIVE: To evaluate the safety and efficacy of ribociclib plus letrozole in the Italian subpopulation with HR+, HER2- ABC from the CompLEEment-1 trial.

PATIENTS AND METHODS: Patients with HR+, HER2- ABC received ribociclib (600 mg/day, 3 weeks on/1 week off) plus letrozole (2.5 mg/day) while men and premenopausal women additionally received goserelin. Patients were allowed with ≤ 1 line of prior chemotherapy and an Eastern Cooperative Oncology Group performance status of ≤ 2. The primary outcome included safety and tolerability.

RESULTS: Of the 554 Italian patients, 246 (44.4 %) patients completed treatment. The reasons for treatment discontinuation included progressive disease (PD; 36.6 %), adverse events (AEs; 11.9 %), and death (1.6 %). All-grade AEs and grade ≥ 3 AEs occurred in 98.9 % and 77.8 % patients, respectively. The most common treatment-related AEs were neutropenia (73.6 %), followed by leukopenia (32.1 %), and nausea (25.3 %). The overall response rate was 28.2 % (95 % confidence interval [CI], 24.4-32.1); clinical benefit rate was 71.7 % (95 % CI, 67.7-75.4); and median time to progression was 26.7 months (95 % CI, 24.8-non-estimable). Health-related quality of life scores were maintained during treatment.

CONCLUSION: The safety and efficacy profiles of ribociclib plus letrozole in the Italian subpopulation was found to be consistent with the CompLEEment-1 global population result, MONALEESA-2, and MONALEESA-7 outcomes, which reaffirm ribociclib plus letrozole as the frontline treatment option in patients with HR+, HER2- ABC.

TRIAL REGISTRATION NUMBER AND DATE OF REGISTRATION: NCT02941926 (30 November 2016).

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:17

Enthalten in:

Targeted oncology - 17(2022), 6 vom: 24. Nov., Seite 615-625

Sprache:

Englisch

Beteiligte Personen:

De Laurentiis, Michelino [VerfasserIn]
Caputo, Roberta [VerfasserIn]
Mazza, Manuelita [VerfasserIn]
Mansutti, Mauro [VerfasserIn]
Masetti, Riccardo [VerfasserIn]
Ballatore, Zelmira [VerfasserIn]
Torrisi, Rosalba [VerfasserIn]
Michelotti, Andrea [VerfasserIn]
Zambelli, Alberto [VerfasserIn]
Ferro, Antonella [VerfasserIn]
Generali, Daniele [VerfasserIn]
Vici, Patrizia [VerfasserIn]
Coltelli, Luigi [VerfasserIn]
Fabi, Alessandra [VerfasserIn]
Marchetti, Paolo [VerfasserIn]
Ballestrero, Alberto [VerfasserIn]
Spazzapan, Simon [VerfasserIn]
Frassoldati, Antonio [VerfasserIn]
Sarobba, Maria Giuseppina [VerfasserIn]
Grasso, Donatella [VerfasserIn]
Zamagni, Claudio [VerfasserIn]

Links:

Volltext

Themen:

7LKK855W8I
Clinical Trial, Phase III
EC 2.7.10.1
Journal Article
Letrozole
Receptor, ErbB-2
Receptors, Estrogen
Receptors, Progesterone
Research Support, Non-U.S. Gov't
Ribociclib
TK8ERE8P56

Anmerkungen:

Date Completed 25.11.2022

Date Revised 14.12.2022

published: Print-Electronic

ClinicalTrials.gov: NCT02941926

Citation Status MEDLINE

doi:

10.1007/s11523-022-00913-x

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM346684307