RT Journal Article SR Electronic A1 Vinall, Maria T1 I-PRESERVE Trial Fails to Find Clinical Benefit of Irbesartan in Patients with Heart Failure and Preserved Ejection Fraction JF MD Conference Express YR 2009 FD SAGE Publications VO 8 IS 8 SP 18 OP 19 DO 10.1177/155989770900800810 UL http://mdc.sagepub.com/content/8/8/18.abstract AB Approximately 50% of heart failure (HF) patients have a left ventricular ejection fraction =45%. The majority of them are women and older patients. Unlike low ejection fraction HF, the primary underlying condition in heart failure with preserved ejection fraction (HFPEF) is hypertension. There currently are no evidence-based treatments to improve outcomes in patients with HFPEF. This article presents the results of the Irbesartan in Heart Failure with Preserved Ejection Fraction Study [I-PRESERVE; NCT00095238].