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Objective:The pathological complete response (pCR) rates of neoadjuvant chemotherapy (NAC) in triple-nega-tive breast cancer (TNBC) was reported higher than that in non-TNBC but ranged from 12%to 48%. pCR was reported to be a predictor of long overal survival and exact pCR rate of NAC in TNBC would give us some hints on how to improve outcomes of TNBC patients. The meta-analysis was conducted to estimate the pCR rate of NAC for TNBC through contrasting the pCR rates of TNBC and non-TNBC tumors in NAC. Methods:Studies were selected from the PubMed database and Cochrane Col aboration Library. pCR rates were col ected in groups of TNBC and non-TNBC tumors. Review Manager 4.2 was used to perform forest plots and funnel plots. Results:The analysis included 22 studies with 7168 patients, the aggregate pCR rate was 29.5%in TNBC group, which was 17.7%higher than non-TNBC. The summary relative risk (RR) for pCR rate of TNBC group with that of non-TNBC group was 2.55. No obvious statistical heterogeneity and publication bias was detected. Conclu-sion:This meta-analysis demonstrated that NAC showed a higher pCR rate in TNBC than non-TNBC.
