- For participants of reproductive potential (males and females), a reliable means of contraception has to be used throughout trial participation(acceptable methods of birth control include for example birth control pills, intrauterine devices [IUDs], surgical sterilization, vasectomized partner and double barrier method.. All patients (males and females of child-bearing potential) must also agree to use an acceptable method of contraception for 6 months following completion or discontinuation from the trial medication.