Interleukin-1 Blockade in HF With Preserved EF

* Heart Failure with Preserved Ejection Fraction (HFpEF) is a common form of heart failure * Standard treatment for heart failure, show less than ideal results in HFpEF * Evidence of systemic inflammation is common in all forms of heart failure, including HFpEF * The main hypothesis of this study is that systemic inflammation contributes to heart failure symptoms and exercise limitations in patients with HFpEF * The main objective is to treat patients with HFpEF and evidence of systemic inflammation with an anti-inflammatory drug targeting Interleukin-1 (or placebo) to determine effects on cardiovascular function