Cost of treating castration-resistant prostate cancer by applying the Delphi method to the Brazilian Private Healthcare System

Abstract

Objective: To estimate the treatment costs for patients with non-metastatic castration-resistant prostate cancer (nmCRPC) and metastatic castration-resistant prostate cancer (mCRPC) within the Brazilian private healthcare system. Methods: A literature search was performed to obtain currently available data on prostate cancer treatment costs in Brazil. As national data are scarce, a Delphi method with a specialist board was chosen with six oncologists for resource estimations. The Delphi panel had three steps: two online and one in-person, addressing what resources, frequencies, and percentages of use of imaging and laboratory exams, hospital data (including medical appointments, emergency room, hospitalizations - clinical, surgical and Intensive Care Unit). Data on prostate cancer treatment patterns were also requested. Finally, metastasis management data was required. Using the collected data, we developed a micro-costing model of castration-resistant prostate cancer in Brazil. Results: The total cost for the entire castration-resistant prostate cancer patient journey was 480.497,25 BRL, with the non-metastatic disease alone costing 189.832,79 BRL and the metastatic disease costing 290.664,46 BRL. Conclusion: The costs of treating metastatic prostate cancer are substantially higher than the treatment of high-risk castration-resistant non-metastatic patients, which seems to economically justify the use of measures that prevent or postpone metastasis.