19. Male who is sexually active and not surgically sterilized who and whose partner(s) is not using adequate contraceptive methods (adequate contraceptive measures include surgical sterilisation, hormonal intrauterine devices [coil], oral hormonal contraceptives, each in combination with spermicide-coated condoms), or who is not willing to refrain from sexual intercourse from the first dosing until 1 month after last dosing in the trial.