Correlation between ABCB1 C3435T gene polymorphism and clopidogrel resistance：a meta analysis

Objective： To systematically evaluate the correlation between ABCB1 C3435T gene polymorphism and clopidogrel resistance（CR）.Methods： The databases，such as Wanfang Data，the Chinese Biomedical Literature Database（CBM），the Chinese Journal Fulltext Database in China National Knowledge Infrastructure（CNKI），the China Science and Technology Journal Database（VIP），Science Citation Index（SCI），PubMed and EMBase，were searched from the inception to October 2019.The quality of clinical studies which met the inclusion criteria was evaluated，and meta analysis was performed using Stata 14.0 software.Results： Ten papers were included and 2642 patients were enrolled，including 878 cases in the clopidogrel-resistance group and 1764 cases in the non-clopidogrel resistance group.Results of meta-analysis showed that due to ABCB1 C3435T gene polymorphism，the overall effect of each subgroup was statistically significant（P<0.05）： allele gene model OR=1.39，95% CI（1.07，1.81）， dominant gene model OR=1.37，95% CI（1.13，1.66），recessive gene model OR=1.62，95% CI（1.02，2.57）， homozygous gene model OR=1.92，95% CI（1.14，3.22），and heterozygous gene model OR=1.33，95% CI（1.06，1.66）.Conclusion： Current findings confirmed that ABCB1 C3435T gene polymorphism is associated with clopidogrel resistance.