Abstract:
PURPOSE:The comparative efficacy of endocrine-based therapies (ETs) for hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) metastatic breast cancer (mBC) is not well characterized. This network meta-analysis (NMA) synthesized available evidence on progression-free survival (PFS) with first-line ETs for postmenopausal HR+/HER2- mBC. METHODS:A systematic literature review identified randomized controlled trials of first-line ETs. Pairwise hazard ratios and 95% credible intervals (CrIs) were obtained via a Bayesian NMA model. Subgroup NMAs were conducted among late progressors (disease-free interval ≥12 months from completion of [neo] adjuvant therapy with letrozole or anastrozole at the time of randomization) and de novo patients, defined as patients whose initial BC diagnosis is mBC. FINDINGS:Five trials and 5 regimens (ribociclib + an aromatase inhibitor [AI] [LEE + AI], palbociclib + AI [Pal + AI], fulvestrant 250 mg + AI [Ful250 + AI], fulvestrant 500 mg [Ful500], and AI) were selected. LEE + AI, Pal + AI, Ful250 + AI, and Ful500 had significantly longer PFS versus AI (95% CrI upper-bound ≤1). LEE + AI had a 30% and 29%, and Pal + AI had a 31% and 30%, reduced hazard of progression or death versus Ful250 + AI and Ful500 (95% CrI upper-bound ≤1), respectively. The probability of being the most efficacious was 46% for LEE + AI and 54% for Pal + AI. In subgroup analyses among late progressors, LEE + AI had a 4% reduced hazard of progression or death versus Pal + AI but was not statistically significant. In the de novo analysis, Pal + AI and LEE + AI had a 29% and 40% reduced hazard of progression or death versus Ful500, respectively, but were not statistically significant. In both subgroup analyses, all therapies had significantly longer PFS compared with AI. IMPLICATIONS:Pal + AI, LEE + AI, Ful250 + AI, or Ful500 as first-line treatment for HR+/HER2- mBC had longer PFS than AI alone. Given the lack of head-to-head clinical trials comparing the efficacy of recently approved first-line ETs for HR+/HER2- mBC, these results have important clinical implications for the treatment of HR+/HER2- mBC in the first-line setting.
journal_name
Clin Therjournal_title
Clinical therapeuticsauthors
Ayyagari R,Tang D,Patterson-Lomba O,Zhou Z,Xie J,Chandiwana D,Dalal AA,Niravath PAdoi
10.1016/j.clinthera.2018.03.004subject
Has Abstractpub_date
2018-04-01 00:00:00pages
628-639.e3issue
4eissn
0149-2918issn
1879-114Xpii
S0149-2918(18)30096-1journal_volume
40pub_type
杂志文章,meta分析abstract:PURPOSE:This study aimed to review and summarize clinical trial data, updated guidelines, and expert opinions on the recommendations for drug holidays in patients being treated for osteoporosis. METHODS:Three unique PubMed searches using the terms osteoporosis drug holiday, osteoporosis discontinuation, and osteoporos...
journal_title:Clinical therapeutics
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