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The Effects of Acetylcysteine on Alleviating Damage of Oxidative Stress in Hemodialysis Patients

Anemia Clinical Trial

Clinical Trial Summary

The aim of this study is to explore and identify the effects of acetylcysteine, a common mucolytic with anti-oxidant property, on alleviating the damage caused by increased oxidative stress in hemodialysis patients.

Clinical Trial Description

Oxidative stress in patients with renal failure is higher than in healthy controls. Once undergoing hemodialysis (HD) therapy, patients with end-stage renal disease even have more oxidative stress. Reactive oxygen species (ROS) denature the vital molecules, such as lipids, proteins, and nucleic acids.

Increased ROS produce oxidized low-density lipoproteins (ox-LDL), which, in turn, induce atherosclerosis and subsequent cardiovascular disease. Cardiovascular disease is the leading cause of death of HD patients. On the other hand, ROS damage RBC membrane and cause hemolysis. Hemolysis exaggerates uremic anemia and results in resistance to erythropoietin (EPO) therapy.

Acetylcysteine, a common mucolytic, is an antioxidant as well. In vivo experiments, acetylcysteine has been demonstrated to inhibit the production of ox-LDL by ROS. Acetylcysteine has also been shown as an effective drug for prevention of contrast media-induced nephropathy in high-risk patients.

Thus we hypothesize HD patients taking acetylcysteine may have less ox-LDL produced by ROS and, consequently, lower risk of cardiovascular disease. Moreover, having less damage to RBC membrane by ROS, HD patients taking acetylcysteine may have milder anemia and better responsiveness to erythropoietin therapy. Therefore, we plan to conduct a prospective trial, in which acetylcysteine is administrated to the enrolled HD patients for three months. The primary goals of the study are to realize the changes of 1) plasma ox-LDL levels, 2) the anemia status, 3) the responsiveness to EPO therapy, and 4) severity of atherosclerosis. The secondary goals are to identify the changes of oxidative stress and pro-inflammatory status in the patients. ;

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00247507
Study type Interventional
Source Far Eastern Memorial Hospital
Contact
Status Active, not recruiting
Phase Phase 4
Start date September 2005
Completion date December 2005
View Details
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