- Female patients must be: postmenopausal, surgically incapable of bearing children, or practicing an acceptable method of birth control (acceptable methods include hormonal contraceptives, intrauterine device, and spermicide and barrier). Abstinence or partner/spouse sterility may also qualify at the Investigator's discretion. If a female patient is of childbearing potential, she must have a negative urine pregnancy test at screening. Male patients must also commit to using adequate contraceptive precautions (condoms). All patients (both males and females of childbearing potential) must commit to using adequate contraceptive precautions throughout their participation in the study and for at least 3 months following their last ECP treatment