Treatment of Hyperuricemia in Patients With Heart Failure

Status Completed

Clinical Trial Summary

The study aims to assess (I) the contribution of UA itself to the CHF pathophysiology and (II) to test the effect of lowering UA by uricosuric treatment in CHF.

Clinical Trial Description

Hyperuricemia is often observed in patients with congestive heart failure (CHF). It has been reported that hyperuricemia is related to exercise capacity, inflammation markers and diastolic dysfunction in such patients. In addition, hyperuricemia in CHF relates to both symptomatic status (i.e. morbidity) as well as impaired prognosis (i.e. mortality). Hyperuricemia is likely to play an important role in the pathophysiology of CHF. Up-regulation of xanthine oxidase (XO) activity in CHF has been shown to contribute to higher uric acid (UA) in CHF and the therapeutic concept of XO inhibition has shown beneficial effects in a number of surrogate markers in these patients. The XO inhibition accounts for substantial decrease in oxygen radical load, the latter is discussed as the main benefit of XO inhibition treatment in hyperuricemic patients. However, whether high uric acid itself is important or merely a marker of XO activity (and hence of increased radical accumulation) is currently under discussion. Therefore, this study aims to assess (I) the contribution of UA itself to the CHF pathophysiology and (II) to test the effect of lowering UA by uricosuric treatment in CHF. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00422318
Study type	Interventional
Source	Tottori University Hospital
Contact
Status	Completed
Phase	Phase 4
Start date	January 2004
Completion date	December 2005

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