- A serious uncontrolled medical disorder or active infection which would impair their ability to receive study treatment will be excluded. Significant cardiac disease, including uncontrolled high blood pressure, unstable angina, and congestive heart failure, myocardial infarction within the previous 3 months or serious cardiac arrhythmias will be excluded. Dementia or significantly altered mental status that would prohibit the understanding or rendering of informed consent and compliance with the requirements of this protocol will be excluded.