AIM:To conduct a systematic review and meta-analysis into the efficacy,safety,and dosage regimens of degarelix for treating prostate cancer(PCa). METHODS:Pub Med,EMBASE,the Cochrane Library,and Web of Science was systematically searched to identify randomized controlled trials(RCTs) comparing degarelix(240/80 mg vs 240/160 mg) to the gonadotropin-releasing hormone agonists,goserelin and leuprolide,for the treatment of PCa. Two independent reviewers screened putative studies,assessed the risk of bias,and then extracted pertinent data. Analyses were performed using Review Manager 5.2. RESULTS:Seven papers from six RCTs,involving 1204 patients,were identified. The present meta-analysis showed that treatment with 240/160 mg degarelix is more effective and has fewer adverse events(AEs) relative to conventional 240/80 mg regimen. Degarelix significantly decreased International Prostate Symptom Scores [standardized mean differences(SMD) =-0.32,95%CI:-0.51 to-0.12,P = 0.02] and caused fewer AEs(SMD =-0.28,95%CI:-0.48 to-0.07,P = 0.008) than goserelin. Degarelix suppressed testosterone and prostate-specific antigen significantly faster than leuprolide. CONCLUSION:Degarelix is a useful option in the treatment of advanced PCa. Degarelix 240/160 mgregimen was superior to a 240/80 mg regimen. More rigorously designed RCTs are urgently needed to confirm the efficacy of degarelix. AIM: To conduct a systematic review and meta-analysis into the efficacy, safety, and dosage regimens of degarelix for treating prostate cancer (PCa). METHODS: Pub Med, EMBASE, the Cochrane Library, and Web of Science was systematically searched to identify randomized controlled trials (RCTs) comparing degarelix (240/80 mg vs 240/160 mg) to the gonadotropin-releasing hormone agonists, goserelin and leuprolide, for the treatment of PCa. Two independent reviewers screened putative studies, assessed the risk of bias, Analyzes were performed using Review Manager 5.2. RESULTS: Seven papers from six RCTs, involving 1204 patients, were identified. The present meta-analysis showed that treatment with 240/160 mg degarelix is ​​more effective and has fewer Degreesix decreased decreased International Prostate Symptom Scores [standardized mean differences (SMD) = -0.32, 95% CI: -0.51 to-0.12, P = 0.02] Degarelix suppressed testosterone and prostate-specific antigen significantly faster than leuprolide. CONCLUSION: Degarelix is ​​a useful option in the treatment of advanced PCa (SMD = -0.28, 95% CI: -0.48 to -0.07, P = 0.008) Degarelix 240/160 mgregimen was superior to a 240/80 mg regimen. More rigorously designed RCTs are urgently needed to confirm the efficacy of degarelix.