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L-Arginine and Sickle Cell Disease

2014-07-23 21:08:48 | BioPortfolio

Summary

One of the main problems in sickle cell disease is the decreased bioavailability of nitric oxide and arginine. This study was designed to assess if treating sickle cell disease patients with L-arginine would improve pulmonary arterial pressure and other aspects.

Description

This is a phase III, randomized, double-blind, placebo-controlled clinical trial with sickle cell disease patients older than 1 year of age. The patients were randomly assigned to take 0.1 g/kg/day of either L-arginine or placebo orally. Adverse events were monitored by a safety committee. The variables were assessed while patients were in remission, as part of their routine care: weight, blood pressure, full blood cell count, creatinine and dosage of methemoglobin at baseline and at each follow-up visit. Peripheral oxygen saturation (SpO2), fetal hemoglobin, lactate dehydrogenase and tricuspid regurgitant jet velocity were measured through transthoracic Doppler echocardiogram before and after treatment.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment

Conditions

Sickle Cell Disease

Intervention

L-arginine, Placebo

Location

Hospital de Clínicas de Porto Alegre
Porto Alegre
RS
Brazil
90035-001

Status

Completed

Source

Hospital de Clinicas de Porto Alegre

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:08:48-0400

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Medical and Biotech [MESH] Definitions

One of the sickle cell disorders characterized by the presence of both hemoglobin S and hemoglobin C. It is similar to, but less severe than sickle cell anemia.

An abnormal hemoglobin resulting from the substitution of valine for glutamic acid at position 6 of the beta chain of the globin moiety. The heterozygous state results in sickle cell trait, the homozygous in sickle cell anemia.

An acute purulent infection of the meninges and subarachnoid space caused by Streptococcus pneumoniae, most prevalent in children and adults over the age of 60. This illness may be associated with OTITIS MEDIA; MASTOIDITIS; SINUSITIS; RESPIRATORY TRACT INFECTIONS; sickle cell disease (ANEMIA, SICKLE CELL); skull fractures; and other disorders. Clinical manifestations include FEVER; HEADACHE; neck stiffness; and somnolence followed by SEIZURES; focal neurologic deficits (notably DEAFNESS); and COMA. (From Miller et al., Merritt's Textbook of Neurology, 9th ed, p111)

A disease characterized by chronic hemolytic anemia, episodic painful crises, and pathologic involvement of many organs. It is the clinical expression of homozygosity for hemoglobin S.

The condition of being heterozygous for hemoglobin S.

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