- patients with uncontrolled, intercurrent illness including, but not limited to, symptomatic neurological illness; active, uncontrolled, systemic infection considered opportunistic, life-threatening, or clinically significant at the time of treatment; symptomatic congestive heart failure; unstable angina pectoris; cardiac arrhythmia; significant pulmonary disease or hypoxia; or psychiatric illness/social situations that would limit compliance with study requirements