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Clinical Trial Summary

Fibromyalgia is a common condition in clinical medical practice, characterized by diffuse musculoskeletal pain. Sleep disorders, chronic fatigue, depression, intestinal disorders and headache are also commonly associated with the syndrome .

Although the etiology of this syndrome is not well defined yet, it means involve multiple mechanisms, including low levels of serotonin, increased substance P in cerebrospinal fluid and altered circadian variation in sympathetic - parasympathetic balance, consistent with changes in sympathetic hyperactivity at night .

The immune - pineal system, formed by the integration of the adrenergic and immune systems pineal gland, appears to be involved in the genesis of the dysfunctions found in fibromyalgia. Melatonin is secreted by the pineal gland and has promoter activity of sleep. Studies show that melatonin and its precursors , serotonin and tryptophan are reduced in patients with fibromyalgia.

The present study aims to evaluate the relationship of immune - pineal system in the process of fibromyalgia , since dysfunction of this axis appears to govern the cascading events that participate in the pathophysiological process of this disease.


Clinical Trial Description

n/a


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT02041455
Study type Interventional
Source Hospital de Clinicas de Porto Alegre
Contact Wolnei Caumo, PhD
Phone 555133598083
Email caumo@cpovo.net
Status Recruiting
Phase Phase 2/Phase 3
Start date June 2010
Completion date March 2014

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