<qa>  What is the name of the class 2 of the New York Heart Association?- Unstableuncontrolled cardiac disease including: congestive heart failure New York Heart Association NYHA class 2; unstable angina angina symptoms at rest, new-onset angina begun within the last 3 months; myocardial infarction less than 6 months before start of study drug; cardiac arrhythmias requiring anti-arrhythmic therapy beta blockers or digoxin are permitted. 