Cancer management and research · 2021
Referral for "Neoadjuvant Chemotherapy" for Muscle-Invasive Bladder Cancer to a Multidisciplinary Board: Patterns, Management and Outcomes.
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Dellis Athanasios, Zakopoulou Roubini, Kougioumtzopoulou Andromahi, Tzannis Kimon, Koutsoukos Konstantinos, Fragkoulis Charalampos, Kostouros Efthymios, Papatsoris Athanasios, Varkarakis Ioannis, Stravodimos Konstantinos, Boutati Eleni, Pagoni Stamata, Seferlis Miltiadis, Chrisofos Michael, Kouloulias Vasilios, Ntoumas Konstantinos, Deliveliotis Charalambos, Constantinides Constantine, Dimopoulos Meletios A, Bamias Aristotelis
Аннотация
BACKGROUND: Utilization of neoadjuvant chemotherapy for the treatment of muscle invasive bladder cancer in everyday practice differs from that of clinical trials. We describe the patterns of referral for "neoadjuvant chemotherapy", treatment and outcomes in a multidisciplinary tumor board.
METHODS: This was an observational study. Patients referred for neoadjuvant chemotherapy received 4 cycles of dose-dense gemcitabine/cisplatin and were then assessed for definitive local therapy. Patients had a minimum follow-up of 2 years. Primary objective was a 3-year disease-free survival rate.
RESULTS: Forty-six patients (clinical stages II: 28, IIIA: 9, IIIB: 4, IVA: 3, missing: 2) were included. Following chemotherapy, 30 underwent radical cystectomy, 8 radiotherapy and 8 no further therapy. Pathological downstaging was observed in 14 (46.6%) of the 30 patients who underwent radical cystectomy; clinical TNM staging was correlated with disease-free survival in the whole population, while clinical and pathological stages, as well as pathological downstaging, were correlated with disease-free survival in patients undergoing radical cystectomy. Three-year disease-free survival rates for the whole cohort and for patients undergoing radical cystectomy were 67.3% (95% confidence interval [CI]: 51-79.2) and 65.2 (95% CI: 44.9-79.6), respectively.
CONCLUSION: Real-world muscle invasive bladder cancer patients who receive neoadjuvant chemotherapy are characterized by more advanced diseases and less frequent radical surgery than those included in clinical trials. Nevertheless, outcomes were comparable and, therefore, offering patients with stage II-IVA muscle invasive bladder cancer neoadjuvant chemotherapy after assessment by multidisciplinary tumor boards should be strongly encouraged.
METHODS: This was an observational study. Patients referred for neoadjuvant chemotherapy received 4 cycles of dose-dense gemcitabine/cisplatin and were then assessed for definitive local therapy. Patients had a minimum follow-up of 2 years. Primary objective was a 3-year disease-free survival rate.
RESULTS: Forty-six patients (clinical stages II: 28, IIIA: 9, IIIB: 4, IVA: 3, missing: 2) were included. Following chemotherapy, 30 underwent radical cystectomy, 8 radiotherapy and 8 no further therapy. Pathological downstaging was observed in 14 (46.6%) of the 30 patients who underwent radical cystectomy; clinical TNM staging was correlated with disease-free survival in the whole population, while clinical and pathological stages, as well as pathological downstaging, were correlated with disease-free survival in patients undergoing radical cystectomy. Three-year disease-free survival rates for the whole cohort and for patients undergoing radical cystectomy were 67.3% (95% confidence interval [CI]: 51-79.2) and 65.2 (95% CI: 44.9-79.6), respectively.
CONCLUSION: Real-world muscle invasive bladder cancer patients who receive neoadjuvant chemotherapy are characterized by more advanced diseases and less frequent radical surgery than those included in clinical trials. Nevertheless, outcomes were comparable and, therefore, offering patients with stage II-IVA muscle invasive bladder cancer neoadjuvant chemotherapy after assessment by multidisciplinary tumor boards should be strongly encouraged.