treatment prior study weeks days patients months allowed dose trc pregnant patients known included ineligible currently treated time enrollment study enrollment prior study time weeks days patients months therapy treatment progressive disease rapidly patients evidence therapy time study months treatment survival expected months days weeks free greater infection time opinion patients disease study prior treatment months defined known score days transplant liver post prior days patients months eligible history time randomization prior weeks months days therapy treatment date time laboratory age time years consent enrollment informed diagnosis study months patients screening prior months days weeks hospitalization positive date therapy time genders practice birth control willing months time enrollment treatment patients entry study prior weeks days months patients time therapy received psa doubling time months psadt values patients calculate measurements dt