1. Sex and Reproductive Status: a) WOCBP and men of fathering potential who are unwilling or unable to use an acceptable method to avoid pregnancy for the entire study and for up to 26 weeks after the last dose of investigational product. Adequate contraception for women is defined as oral contraceptives, other hormonal contraceptives or mechanical products such as an intrauterine device or barrier methods (diaphragm, condoms, spermicides), abstinence or sterile partner (eg, vasectomy). Adequate contraception for men is defined as abstinence, sterile partner, condoms, or vasectomy. b) Women who are pregnant or breastfeeding.