Treatment Sequencing Patterns in Patients with Metastatic Urothelial Cancer Treated in the Community Practice Setting in the United States: SPEAR-Bladder (Study informing treatment Pathway dEcision in bladder cAnceR)
Abstract
Clinical trial evidence has affirmed the role for immuno-oncology (IO) treatment for locally advanced or metastatic urothelial carcinoma (la/mUC). This Study informing treatment Pathway dEcision in bladder cAnceR (SPEAR-Bladder) aimed to provide insight into the optimal sequencing of IO treatments among la/mUC patients treated in the US Oncology Network. This was a retrospective analysis of adult patients with la/mUC who initiated first-line chemotherapy followed by either IO therapy (C-IO subgroup) or chemotherapy (C-C subgroup) between 01/01/2015 and 04/30/2017 and included a potential follow-up period through 06/30/2017. Data were sourced from iKnowMed electronic health records. Patient and treatment characteristics were assessed descriptively, with Kaplan-Meier methods used to evaluate time-to-event outcomes, including overall survival (OS). A total of 117 patients were included in this analysis (median age 69 years, 74.4% male, 88.0% Caucasian): 79 and 38 patients were in the C-IO and C-C subgroups, respectively. The median OS was 19.2 months among patients who received the C-IO sequence and 11.9 months among those who received the C-C treatment sequence. These results suggest that patients who received the C-IO treatment ...Continue Reading
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