PMID- 37255389 OWN - NLM STAT- MEDLINE DCOM- 20230814 LR - 20231213 IS - 2045-7634 (Electronic) IS - 2045-7634 (Linking) VI - 12 IP - 14 DP - 2023 Jul TI - Tyrosine kinase inhibitors in HER2-positive breast cancer brain metastases: A systematic review and meta-analysis. PG - 15090-15100 LID - 10.1002/cam4.6180 [doi] AB - BACKGROUND: Small tyrosine kinase inhibitors (TKIs) show activity against breast cancer brain metastases (BCBM) of the human epidermal growth factor receptor 2 (HER2)-positive subtype. This meta-analysis aimed to objectively explore the efficacy and safety of TKIs. METHODS: Electronic databases were searched for relevant clinical trials. We conducted a pairwise meta-analysis, pooled analysis, and estimated summary survival curves to compare survival outcomes following TKIs therapy for BCBM patients using Stata version 16.0 or R x64 4.0.5. RESULTS: Thirteen clinical trials involving 987 HER2-positive BCBM patients were analyzed. A trend of longer progression-free survival (PFS) was observed in the TKI-containing arm compared to the non-TKI-containing arm (hazard ratio = 0.64, 95% confidence interval [CI]: 0.35-1.15, p = 0.132), although the difference is not statistically significant. Summary survival curves reported the summary median PFS and overall survival were 7.9 months and 12.3 months. Subgroup analysis revealed that TKIs combined with capecitabine (TKI + Cap) regimens resulted in improved survival outcomes. Tucatinib may be more effective in BCBM patients. The main grade 3-5 adverse events (AEs) were diarrhea (22%, 95% CI: 14%-32%), neutropenia (11%, 95% CI: 5%-18%), hepatic toxicity (7%, 95% CI: 1%-16%), and sensory neuropathy (6%, 95% CI: 2%-12%). CONCLUSION: TKIs therapy improved the survival outcomes of HER2-positive BCBM patients, especially when combined with capecitabine and tolerable AEs. We also identified the clinical value of tucatinib, which appears to be the most favorable TKI drug for BCBM patients. CI - (c) 2023 The Authors. Cancer Medicine published by John Wiley & Sons Ltd. FAU - Yu, Yushuai AU - Yu Y AD - Department of Breast Surgery, Fujian Medical University Union Hospital, Fuzhou, China. AD - Breast Cancer Institute, Fujian Medical University, Fuzhou, China. FAU - Huang, Kaiyan AU - Huang K AD - Department of Breast Surgery, Fujian Medical University Union Hospital, Fuzhou, China. AD - Breast Cancer Institute, Fujian Medical University, Fuzhou, China. FAU - Lin, Yuxiang AU - Lin Y AD - Department of Breast Surgery, Fujian Medical University Union Hospital, Fuzhou, China. AD - Breast Cancer Institute, Fujian Medical University, Fuzhou, China. AD - Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China. FAU - Zhang, Jie AU - Zhang J AD - Department of Breast Surgery, Fujian Medical University Union Hospital, Fuzhou, China. AD - Breast Cancer Institute, Fujian Medical University, Fuzhou, China. AD - Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China. FAU - Song, Chuangui AU - Song C AUID- ORCID: 0000-0001-5703-9123 AD - Department of Breast Surgery, Fujian Medical University Union Hospital, Fuzhou, China. AD - Breast Cancer Institute, Fujian Medical University, Fuzhou, China. AD - Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China. LA - eng PT - Journal Article PT - Meta-Analysis PT - Systematic Review DEP - 20230531 PL - United States TA - Cancer Med JT - Cancer medicine JID - 101595310 RN - 6804DJ8Z9U (Capecitabine) RN - 0 (Tyrosine Kinase Inhibitors) RN - 0 (Protein Kinase Inhibitors) SB - IM MH - Humans MH - Female MH - *Breast Neoplasms/pathology MH - Capecitabine/therapeutic use MH - Tyrosine Kinase Inhibitors MH - *Brain Neoplasms/drug therapy/secondary MH - Progression-Free Survival MH - Protein Kinase Inhibitors/adverse effects PMC - PMC10417165 OTO - NOTNLM OT - Brain metastases OT - HER2-positive OT - breast cancer OT - meta-analysis OT - small-molecule tyrosine kinase inhibitors COIS- The authors have declared that no competing interests exist. EDAT- 2023/05/31 13:12 MHDA- 2023/08/14 06:42 PMCR- 2023/05/31 CRDT- 2023/05/31 09:45 PHST- 2023/05/04 00:00 [revised] PHST- 2022/05/23 00:00 [received] PHST- 2023/05/20 00:00 [accepted] PHST- 2023/08/14 06:42 [medline] PHST- 2023/05/31 13:12 [pubmed] PHST- 2023/05/31 09:45 [entrez] PHST- 2023/05/31 00:00 [pmc-release] AID - CAM46180 [pii] AID - 10.1002/cam4.6180 [doi] PST - ppublish SO - Cancer Med. 2023 Jul;12(14):15090-15100. doi: 10.1002/cam4.6180. Epub 2023 May 31.