Abstract
71 Background: With the advent of newer non-cytotoxic therapies for aPC, early integration of hormonal therapies (HT), and expansion of services within urology practices [e.g., radiation therapy (RT) and immunotherapy], urology practices are playing a larger role in the management of patients with aPC. In this descriptive study, we sought to assess the differences between medical oncologists (oncs) and urologists (uros) as they pertain to referral patterns and treatment decisions of men with aPC. Methods: Virtual meetings held in August 2020 convened oncs and uros of diverse US regions and practice types with experience treating prostate cancer (PC) to better understand perceptions around the management of patients with PC. Participants submitted responses via web-based pre-meeting surveys and real-time polling. All responses are summarized using descriptive statistics. Results: 66 oncs and 69 uros participated. The advisors were mostly community-based and see on average 20+ patients per day. 75% of uros estimated they refer ≤25% of all of their patients with PC to oncs and 75% of oncs reported that > 50% of their patients with PC referrals are from uros. Other referring physicians identified include primary care (76%), radiation oncs (46%), or hospitalists (40%). Uros perceive oncs as co-managers (86%) for their patients with aPC and rarely (9%) transfer the care of their patients completely to oncs. Referrals from uros to oncs are driven by the need for chemotherapy (chemo) (52%) or progression to metastatic castration-resistant PC (mCRPC) (22%). Oncs reported that upon referral, these patients with PC have already been exposed to HT (75%), RT (66%), and/or surgery (43%). For second-line treatment of asymptomatic patients with mCRPC, oncs most commonly prescribe HT (60%) and chemo (23%), while uros most commonly prescribe sipuleucel-T (45%) and HT (38%). For second-line treatment of patients with mCRPC and symptomatic bony disease, oncs most commonly prescribe chemo (44%) and radium-223 (34%), while uros most commonly prescribe radium-223 (47%) and HT (22%). Conclusions: Uros refer patients with aPC to oncs for chemo. Uros prefer to treat with non-chemo options when possible and retain oncologic care for most of the patients’ cancer journey. The need for chemo is a major reason for referral from uros to oncs. The impact of these provider preferences upon patient outcomes in the real world needs further research. [Table: see text]
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