- Uncontrolled inter-current illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements; a history of depression in and of itself is not an exclusion to going participating provided the patient and physician believe the depression is controlled and the patient will discontinue the IFN-alpha should symptoms recur