- Any severe and/or uncontrolled medical conditions or other conditions that could affect their participation in the study such as: Symptomatic congestive heart failure of New York Heart Association (NYHA) Class III or IV; unstable angina pectoris, symptomatic congestive heart failure, myocardial infarction within 6 months of start of study drug, serious uncontrolled cardiac arrhythmia or any other clinically significant cardiac disease; severely impaired lung function as defined as spirometry and diffusing lung capacity oxygenation (DLCO) that is 50% of the normal predicted value and/or 02 saturation that is 88% or less at rest on room air; uncontrolled diabetes as defined by fasting serum glucose >1.5 x ULN; active (acute or chronic) or uncontrolled severe infections; liver disease such as cirrhosis, chronic active hepatitis or chronic persistent hepatitis