 - All female subjects of childbearing age must be either surgically sterile, postmenopausal for at least 1 year, or using an acceptable method of contraception. Examples of adequate methods of contraception include abstinence, intrauterine device, hormonal contraception, use of spermicide and a condom by sexual partner, or partner with a vasectomy. Adequate contraception must be used from the beginning of the screening period until at least 16 weeks after the last dose of KW-0761. Male subjects with partners of childbearing potential must use a barrier method of contraception from the day of the first dose of KW-0761 until at least 16 weeks after the last dose. 