Overall Survival with Ribociclib plus Fulvestrant in Advanced Breast Cancer
Language English Country United States Media print-electronic
Document type Clinical Trial, Phase III, Comparative Study, Journal Article, Multicenter Study, Randomized Controlled Trial, Research Support, Non-U.S. Gov't
PubMed
31826360
DOI
10.1056/nejmoa1911149
Knihovny.cz E-resources
- MeSH
- Aminopyridines administration & dosage adverse effects MeSH
- Progression-Free Survival MeSH
- Fulvestrant administration & dosage adverse effects MeSH
- Kaplan-Meier Estimate MeSH
- Middle Aged MeSH
- Humans MeSH
- Breast Neoplasms drug therapy mortality MeSH
- Postmenopause MeSH
- Antineoplastic Combined Chemotherapy Protocols adverse effects therapeutic use MeSH
- Purines administration & dosage adverse effects MeSH
- Receptor, ErbB-2 MeSH
- Receptors, Estrogen MeSH
- Receptors, Progesterone MeSH
- Drug Administration Schedule MeSH
- Aged MeSH
- Check Tag
- Middle Aged MeSH
- Humans MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Clinical Trial, Phase III MeSH
- Multicenter Study MeSH
- Research Support, Non-U.S. Gov't MeSH
- Randomized Controlled Trial MeSH
- Comparative Study MeSH
- Names of Substances
- Aminopyridines MeSH
- ERBB2 protein, human MeSH Browser
- Fulvestrant MeSH
- Purines MeSH
- Receptor, ErbB-2 MeSH
- Receptors, Estrogen MeSH
- Receptors, Progesterone MeSH
- ribociclib MeSH Browser
BACKGROUND: In an earlier analysis of this phase 3 trial, ribociclib plus fulvestrant showed a greater benefit with regard to progression-free survival than fulvestrant alone in postmenopausal patients with hormone-receptor-positive, human epidermal growth factor receptor 2 (HER2)-negative advanced breast cancer. Here we report the results of a protocol-specified second interim analysis of overall survival. METHODS: Patients were randomly assigned in a 2:1 ratio to receive either ribociclib or placebo in addition to fulvestrant as first-line or second-line treatment. Survival was evaluated by means of a stratified log-rank test and summarized with the use of Kaplan-Meier methods. RESULTS: This analysis was based on 275 deaths: 167 among 484 patients (34.5%) receiving ribociclib and 108 among 242 (44.6%) receiving placebo. Ribociclib plus fulvestrant showed a significant overall survival benefit over placebo plus fulvestrant. The estimated overall survival at 42 months was 57.8% (95% confidence interval [CI], 52.0 to 63.2) in the ribociclib group and 45.9% (95% CI, 36.9 to 54.5) in the placebo group, for a 28% difference in the relative risk of death (hazard ratio, 0.72; 95% CI, 0.57 to 0.92; P = 0.00455). The benefit was consistent across most subgroups. In a descriptive update, median progression-free survival among patients receiving first-line treatment was 33.6 months (95% CI, 27.1 to 41.3) in the ribociclib group and 19.2 months (95% CI, 14.9 to 23.6) in the placebo group. No new safety signals were observed. CONCLUSIONS: Ribociclib plus fulvestrant showed a significant overall survival benefit over placebo plus fulvestrant in patients with hormone-receptor-positive, HER2-negative advanced breast cancer. (Funded by Novartis; MONALEESA-3 ClinicalTrials.gov number, NCT02422615.).
References provided by Crossref.org
ClinicalTrials.gov
NCT02422615