This study represents the real word experience with nivolumab and the results are consistent with previously reported in clinical trials. PS 2 and the presence of CNS metastases are associated with poor prognosis.

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Biweekly administration of docetaxel and cisplatin in advanced gastric cancer has a manageable toxicity profile and shows a promising antitumour activity as a first-line therapy.

267 Background: Optimal sequencing of new androgen-receptor targeted agents (ART) abiraterone and enzalutamide with docetaxel (DOC) and cabazitaxel (CABA) is unknown. In this large retrospective cohort of mCRPC patients (pts) treated with CABA after docetaxel (DOC), we evaluated the impact of 3 different sequences: DOC → CABA (group 1, n = 267) Or DOC → ART → CABA (group 2, n = 183) Or DOC → CABA → ART (group 3, n = 124). Methods: Records of 574 consecutive mCRPC patients were retrospectively collected in 44 centres in 6 European countries (France, Spain, UK, Greece, Poland, Turkey) from August 2012 to July 2016. Disease history and clinical characteristics at initiation of DOC therapy and outcomes were collected. Factors influencing OS were evaluated using multivariate stepwise logistic regression. Results: At DOC initiation, median age was 67 years, 83% of pts were ECOG 0-1, 45.1% had pain and 10.8% had visceral metastases. Median number of DOC cycles was 7 (6 in group 2, 7 in groups 1 and 3). Median number of CABA cycles was 6 (6 in groups 1 and 2, 7 in group 3). Median duration of ART treatment was 5.9 and 4.4 mths in groups 2 and 3, retrospectively. Median OS from first DOC cycle were 30.1, 37.1 and 40.1 mths in groups 1, 2 and 3, respectively. Factors influencing OS are summarized in the table below. Conclusions: Results of this retrospective cohort suggest that patients receiving DOC → CAB → ART show the greatest OS. High baseline PSA, short response to first-ADT and clinical progression of pts are major prognostic factors of OS at DOC initiation. The window of opportunity for chemotherapy should not be missed. [Table: see text]

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