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A Pilot Study of N-acetylcysteine in Patients With Sickle Cell Disease — NACinSCD  

Sickle Cell Disease Clinical Trial

Official title:
A Pilot Study of N-acetylcysteine in Patients With Sickle Cell Disease

Clinical Trial Summary

Part 1: A pilot study in patients with homozygous S (HbSS) or hemoglobin S with beta zero thalassemia(HbS-βo thalassemia), with the aim of examining the effect of intravenous NAC treatment on plasma VWF parameters and measures of redox and RBC function.

Part 2: A pilot study in patients with sickle cell disease admitted to the hospital in vaso-occlusive crisis to determine the effects of NAC infusions on plasma VWF parameters and measures of redox and RBC function, and on measures of pain and hospital length of stay.

Clinical Trial Description

Two primary processes dominate the complications associated with sickle cell disease (SCD): vasoocclusion and hemolysis. The plasma and vessel wall adhesive protein von Willebrand factor (VWF) is thought to be involved in both of these processes, so strategies aimed at reducing its secretion or reactivity, which could decrease complications in patients with SCD, are being tested.

Based on prior studies, N-acetylcysteine (NAC) treatment may decrease VWF activity in patients with SCD and may be a useful adjunctive treatment in this disorder.

Part 1 enrolls stable outpatients with homozygous S (HbSS) or hemoglobin S with beta zero thalassemia (HbS-βo thalassemia), with the aim of examining the effect of NAC treatment on VWF parameters, measures of oxidation and RBC fragments. Patients receive IV NAC first at 150 mg/kg over 8 hours and if tolerated, at a later date at 300 mg/kg over 8 hours in the University of Washington Clinical Research Center. Blood is collected for laboratory assessment. Subjects are later offered enrollment in an oral phase.

Part 2, patients with a history of vaso-occlusive crisis (VOC) are approached in the outpatient setting to discuss the study. When admitted for VOC, subjects receive NAC as an IV infusion75 mg/kg every 6 hours for up to 5 days. Blood for laboratory assays are collected each morning and pain assessment is performed prior to and following each NAC infusion. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01800526
Study type Interventional
Source Bloodworks
Contact
Status Completed
Phase Phase 1/Phase 2
Start date March 2013
Completion date June 30, 2020
View Details
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