This study is a single-arm clinical trial. Eligible patients will be included in the group receiving farsufilide hydrochloride combined with immunotherapy. After enrollment, in addition to the routine androgen deprivation therapy, they will also receive farsufilide hydrochloride (10mg intravenous infusion) on days 1-5, and PD-1 monoclonal antibody (Tirapibep, 3mg/kg, intravenous infusion) on day 5. The treatment will be repeated every 21 days for a total of 4 times.
