Abstract
The purpose of this review was to compare the efficacy and safety of everolimus plus endocrine therapy with endocrine therapy for hormone receptor-positive, human epidermal growth factor 2 negative advanced breast cancer patients. We comprehensively searched the PubMed, the Cochrane Library, EMBASE, Web of Science, Chinese biomedicine literature database, WanFang Data, CNKI, and VIP database for relevant articles. The retrieval time limit is from building the database to July 2018. The computer search was supplemented with a manual search of reference lists for all available review articles. We scanned references of all included studies for additional studies. We included 7 randomized trials involving 1527 patients. Meta-analysis results are as follows: Everolimus plus endocrine therapy group is significantly better than endocrine therapy group in progression-free survival and clinical benefit rate, (hazard ratio [HR] = 0.48, 95% confidence interval [CI 0.42-0.55], P < 0.00001) and (risk ratio = 1.9, 95% CI [1.60-2.26], P < 0.00001). But there was no significant difference between the 2 groups in overall response rate and time to definitive deterioration (risk ratio = 4.37, 95% CI [0.79-24.27], P = 0.21) and (HR = 0.74, 95% CI [0.49-1.11], P = 0.15). In terms of safety, the incidence rate in everolimus plus endocrine therapy was higher than that in endocrine therapy group. Most frequently reported adverse events associated with everolimus treatment were stomatitis, rash, fatigue, diarrhea, decreased appetite, cough, dyspnea, and pneumonitis. The incidences of grade 3-4 adverse events were stomatitis, fatigue, diarrhea, pneumonitis, and hyperglycemia. Everolimus increased the efficacy of endocrine therapy in treatment advanced endocrine receptor-positive, human epidermal growth factor 2 negative breast cancer patients, and the safety profile of the combination is acceptable.
Published Version
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