 15. Sexually active patients must use effective contraception during the period of therapy and up to 150 days after the last dose of CP-751,871. Acceptable contraception includes, but is not limited to: oral hormone therapy, partner vasectomy, or double barrier contraception which is defined as a male condom plus spermicide in combination with either a female condom, or diaphragm, or cervical cap or intrauterine device. 