Among the aims of the 2nd Conference on Asian Trends in Prostate Cancer Hormone Therapy, Hong Kong, December 7-8, 2002, was to lay the groundwork for eventually having cooperative or collaborative studies of prostate cancer specifically in Asian patients. The conference was divided into 2 sessions. In the first session, entitled "Current Status of Therapy for Prostate Cancer in Asian Countries," the results of analysis of 100 patients with prostate cancer enrolled in the Patients Registration System is each of the 6 participating Asian countries were discussed. The Patients Registration System is a database template established by the Japanese Urological Association that allows physicians to compare prostate cancer therapy in the different Asian countries. Session 2 was devoted to a "Roundtable Discussion on the Establishment of Asian Guidelines for Prostate Cancer." This session included 2 lively discussions, on whether Asian physicians can apply Western clinical data to Asian patients, and the need for Asian clinical data and developing clinical trials in the region, respectively.