Hello @imhart and welcome to Mayo Connect.

I'm pleased to hear that you were at Mayo for a heart cath and received a definitive diagnosis. I can understand your interest in Entresto. In order to find out about the clinical trial, you might contact Dr. Redfield's office staff and ask them if there are still openings in the trail. I'm sure that they could assist you with that information.

If you care to share more, what were your symptoms that led to the heart cath and the diagnosis of diastolic heart failure? I'm just wondering if you had shortness of breath, chest pain or inability to exercise.