OBJECTIVES: We evaluated pathologic and survival outcomes of GC (gemcitabine/cisplatin) and methotrexate/vinblastine/doxorubicin/cisplatin (M-VAC) neoadjuvant chemotherapy (NAC) in patients with muscle-invasive bladder cancer (MIBC). MATERIALS AND METHODS: A retrospective analysis of prospectively collected data on 116 patients who received NAC (GC: n = 58; M-VAC: n = 58) before radical cystectomy and superextended pelvic lymph node dissection for clinical stage T2-4N0M0 bladder cancer was performed. The outcomes were complete response rate (CRR; pT0N0), partial response rate (PRR; pT0N0, pTaN0, pT1N0, or pTisN0), overall mortality (OM), and recurrence. The Kaplan-Meier method and multivariable Cox regression analysis were used to analyze OM. The cumulative incidence method and Fine and Gray's competing risk regression analysis were used to analyze recurrence. RESULTS: The median follow-up duration was 2.1 years for the GC group and 7.4 years for the M-VAC group (P < 0.001). There were no statistically significant differences between the GC and M-VAC groups with regard to CRR (27.3% vs. 17.1%, P = 0.419) or PRR (45.5% vs. 37.1%, P = 0.498). The predicted 5-year freedom from OM rate (P = 0.634) and cumulative incidence of recurrence rate (P = 0.891) did not differ between the GC and M-VAC groups. Multivariable analysis showed that there was no independent association between type of NAC and OM (P = 0.721) or recurrence (P = 0.065). CONCLUSIONS: Pathologic and survival outcomes did not differ in patients who received GC and M-VAC NAC. These data support the use of the GC regimen in the neoadjuvant setting.
OBJECTIVES: We evaluated pathologic and survival outcomes of GC (gemcitabine/cisplatin) and methotrexate/vinblastine/doxorubicin/cisplatin (M-VAC) neoadjuvant chemotherapy (NAC) in patients with muscle-invasive bladder cancer (MIBC). MATERIALS AND METHODS: A retrospective analysis of prospectively collected data on 116 patients who received NAC (GC: n = 58; M-VAC: n = 58) before radical cystectomy and superextended pelvic lymph node dissection for clinical stage T2-4N0M0 bladder cancer was performed. The outcomes were complete response rate (CRR; pT0N0), partial response rate (PRR; pT0N0, pTaN0, pT1N0, or pTisN0), overall mortality (OM), and recurrence. The Kaplan-Meier method and multivariable Cox regression analysis were used to analyze OM. The cumulative incidence method and Fine and Gray's competing risk regression analysis were used to analyze recurrence. RESULTS: The median follow-up duration was 2.1 years for the GC group and 7.4 years for the M-VAC group (P < 0.001). There were no statistically significant differences between the GC and M-VAC groups with regard to CRR (27.3% vs. 17.1%, P = 0.419) or PRR (45.5% vs. 37.1%, P = 0.498). The predicted 5-year freedom from OM rate (P = 0.634) and cumulative incidence of recurrence rate (P = 0.891) did not differ between the GC and M-VAC groups. Multivariable analysis showed that there was no independent association between type of NAC and OM (P = 0.721) or recurrence (P = 0.065). CONCLUSIONS: Pathologic and survival outcomes did not differ in patients who received GC and M-VAC NAC. These data support the use of the GC regimen in the neoadjuvant setting.
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