Does Characterization of Phenotypic Heterogeneity Provide Mechanistic Insights or Influence the Response to Treatment? Experience in Positive and Neutral Trials in Patients With Heart Failure and a Preserved Ejection Fraction.

Abstract excerpt

At a time when there was no unifying hypothesis and no broadly effective treatments for heart failure with a preserved ejection fraction (HFpEF), it was proposed that HFpEF represented a multitude of different disorders. Accordingly, characterization of phenotypic heterogeneity was envisioned as a means of identifying novel causal pathways that could lead to new treatments while simultaneously discerning patients...

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