title: [A meta-analysis of neoadjuvant chemotherapy combined with trastuzumab for HER2-positive breast cancers].
abstract: OBJECTIVE
  To evaluate the efficacy and safety of neoadjuvant chemotherapy combined with trastuzumab for HER2 positive breast cancers.
  
  
  METHODS
  PubMed online database, ASCO abstract database, SABCS abstract database, ESMO abstract database and CBMdisc database were searched for literatures related to trastuzumab in neoadjuvant chemotherapy for breast cancers. A meta-analysis was performed for retrieved literatures meeting the inclusion criteria.
  
  
  RESULTS
  Three clinical trials were included. Meta-analysis showed that compared to chemotherapy only, regimens combined with trastuzumab could significantly improved the pCR rate of HER2-positive breast cancers (RR=1.65, 95% CI 1.28-2.13, P<0.0001) without increasing the frequencies of cardiac toxicity (RR=1.16, 95% CI 0.82-1.64, P=0.41).
  
  
  CONCLUSIONS
  In neoadjuvant chemotherapy for HER2-positive breast cancers, chemotherapy combined with trastuzumab is superior to exclusive chemotherapy.
authors.affiliation: Department of Breast Cancer, Cancer Center, Guangdong General Hospital, Guangzhou 510080, China. drliao_ning@hotmail.com
authors.forename: Ning
authors.initials: N
authors.lastname: Liao
authors.forename: Guo-chun
authors.initials: GC
authors.lastname: Zhang
authors.forename: Xue-rui
authors.initials: XR
authors.lastname: Li
authors.forename: Meng
authors.initials: M
authors.lastname: Yao
authors.forename: Kun
authors.initials: K
authors.lastname: Wang
mesh_terms: D000911:Antibodies, Monoclonal / Q000008:administration & dosage*; D061067:Antibodies, Monoclonal, Humanized; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000378:metabolism; D005260:Female; D006801:Humans; D020360:Neoadjuvant Therapy / Q000379:methods*; D016032:Randomized Controlled Trials as Topic; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000235:genetics* / Q000378:metabolism; D000068878:Trastuzumab
chemical_list: D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D018719:Erb-b2 Receptor Tyrosine Kinases; D000068878:Trastuzumab; C508053:ERBB2 protein, human