<qa>  What is the baseline measurement required to decrease?Inclusion criteria to the randomised period: Patients who fulfilled all entry criteria of the run-in period Patients who completed the 24-week run-in period Patients who responded to the 24-week run-in period with a decrease of PSA to 10 ngmL. If the baseline was 20ngmL, at least 50 decrease from the baseline measurement is required 