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.
Written by:
Fairey AS, Daneshmand S, Quinn D, Dorff T, Dorin R, Lieskovsky G, Schuckman A, Cai J, Miranda G, Skinner EC. Are you the author?
USC Institute of Urology, Keck Medical Center of the University of Southern California, Los Angeles, CA 90089-9178, USA.
Reference: Urol Oncol. 2012 Nov 7. pii: S1078-1439(12)00247-5.
doi: 10.1016/j.urolonc.2012.07.005
PubMed Abstract
PMID: 23141776
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