- Pregnant females; breastfeeding females; males and females of childbearing potential; males and females of childbearing potential not using highly effective contraception or not agreeing to continue highly effective contraception for at least 28 days after last dose of investigational product; males and females of childbearing potential not using two (2) methods of highly effective contraception or not agreeing to continue two (2) methods of highly effective contraception for at least 28 days after last dose of investigational product.