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  • Title: Optimization of Patient Selection for Neoadjuvant Chemotherapy in Muscle-invasive Urothelial Carcinoma of the Bladder.
    Author: Hensley PJ, Goodwin J, Davenport DL, Strup SE, James A.
    Journal: Clin Genitourin Cancer; 2018 Aug; 16(4):e851-e858. PubMed ID: 29548614.
    Abstract:
    BACKGROUND: Radical cystectomy (RC) is delayed in a subset of patients who respond poorly to neoadjuvant chemotherapy (NAC). The present study investigated the clinicopathologic characteristics predicting extravesical disease at RC and the factors associated with NAC tolerability to improve patient selection and the sequence of definitive therapy. MATERIALS AND METHODS: Patients with cT2 urothelial carcinoma of the bladder who underwent NAC were stratified by the final pathologic stage: complete (ypT0N0), partial (≤ pT2), and nonresponse (> pT2 and/or N+). Patients treated with upfront cystectomy were divided into those with organ-confined (≤ pT2) and those with extravesical disease (> pT2 and/or N+). RESULTS: Of 145 patients, 89 received NAC and 56 underwent upfront RC. The univariate predictors of extravesical disease in the patients treated with upfront RC included increased age (P = .021), higher Eastern Cooperative Oncology Group performance status (P < .001), hydronephrosis (P = .021), and cardiovascular risk factors. The complete, partial, and nonresponse rates to NAC were 25.8%, 39.3%, and 34.8%, respectively. The multivariate predictors of pathologic progression on NAC included low serum albumin (P = .005), hydronephrosis (P = .040), incomplete NAC (P = .014), and alternative NAC (non-gemcitabine/cisplatin or MVAC, P = .022). Significant multivariate predictors of incomplete NAC included increased age, coronary artery disease (P = .027), and Eastern Cooperative Oncology Group performance status. CONCLUSION: Redundant clinicopathologic features predicted adverse cystectomy pathology in patients treated with both NAC and upfront RC. The results of the present study demonstrated an inferior pathologic response to alternative NAC regimens in clinically organ-confined disease and implicated cardiovascular comorbidities and nutritional status in the tolerability and response to NAC. Our findings predicate the importance of using patient-specific factors to guide the sequence of definitive treatment toward timely, centralized care to improve clinical outcomes.
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