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Therefore an incomplete response at 3 months does https://www.selleckchem.com/products/ch5424802.html not equate to BCG failure and if high-risk NMIBC recurs after a disease-free interval of ��12 months, then BCG has not necessarily failed. EAU guidelines advocate cystectomy for BCG failure because of a high risk of progression to muscle-invasive disease, excellent survival of patients with BCG failure treated with early cystectomy (80% at 5 years) [41, 42], increased quality-of-life years with early cystectomy, and the avoidance of intensive cystoscopy/radiology/adjuvant therapy that conservative therapy entails [43]. This recommendation for early cystectomy has to be weighed against a 1�C3% mortality rate, an inherent complication rate of ��30% and the morbidity associated with loss of the native bladder [44]. Based on this, salvage strategies may be attempted in patients who are unfit/unwilling for cystectomy, unable to tolerate BCG, or if BCG is unavailable. Salvage intravesical therapy should be used with caution given the lack of consensus and level I evidence for its role, https://www.selleck.cn/products/Verteporfin(Visudyne).html the risk of progression in delaying cystectomy, and the poor survival of patients who have delayed cystectomy after BCG failure [45, 46]. Current salvage strategies for BCG failure include: combined BCG/interferon ��, intravesical chemotherapy (MMC, valrubicin, gemcitabine, docetaxel), thermochemotherapy, photodynamic therapy, and combined chemotherapy/radiotherapy. Combined BCG/interferon �� therapy has been used in salvage of BCG failure. In a large multicentre phase II trial by Joudi et?al. [47] accruing 1007 patients with high-risk NMIBC, interferon �� was combined with reduced-dose BCG (BCG failure) or standard BCG (BCG na?ve patients). There were 467 BCG patients within the BCG failure group and of these patients, 45% (P https://www.selleckchem.com/products/VX-770.html is an emerging strategy for salvage of patients with BCG failure. In Table?4 [23, 48, 60-66], available series that report gemcitabine intravesical chemotherapy for BCG failure are summarised. Most series report encouraging results, with overall recurrence-free survival between 20 and 75% (depending on the series, regimen, and follow-up period). The strongest evidence for the role of gemcitabine in BCG salvage can be derived from the randomised clinical trial by Di Lorenzo et?al.