Patterns of prostate cancer management across Canadian prostate cancer treatment specialists.

321 Background: The Canadian GU Research Consortium (GURC) was recently established to bring comprehensive prostate cancer centres together to collaborate on research, education, and adoption of best practices. As an initial step to inform the work of the GURC, an electronic questionnaire was designed to assess management of advanced prostate cancer care in Canada and better understand patterns of care. Methods: A 59-item online questionnaire was developed by a multidisciplinary scientific committee to measure physician practices, patterns of care, treatment sequencing, and management of mCRPC. After pre-testing, the online questionnaire was sent to 93 urologists, uro-oncologists, medical oncologists, radiation oncologists, and general practitioner oncologists who are actively involved in the treatment of prostate cancer. Results: A total of 49 (53%) respondents completed the questionnaire between April 17, 2017 to May 17, 2017. Although all respondents indicated a role in initiating life-prolonging oral therapy for mCRPC and monitoring treatment and side effects, chemotherapy initiation was mainly a medical oncologist role compared to other specialties (p < 0.05, chi-square). Symptom management such as palliative care and end-of-life care were provided mainly by radiation oncologists (100%) and medical oncologists (81%) compared to urologists (33%) and uro-oncologists (50%), p < 0.05, chi-square). Patient mix varied across the disciplines. Urologist practices were composed primarily of non-metastatic prostate cancer patients (73%), as were radiation oncologist practices (77%), while uro-oncologist practices included both non-metastatic (58%) and metastatic (40%) patients. Medical oncologists practices were mainly (91%) metastatic patients. Referral patterns also varied by discipline. Conclusions: In Canada, prostate cancer treatment involves multiple disciplines providing a range of care at different points across the treatment continuum. We plan to do further research to better understand variation in practice and improve multidisciplinary coordination for patients with advanced prostate cancer.