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Clinical Trial Summary

The purpose of this study is to determine the safety and efficacy of duloxetine compared with placebo for reducing fatigue in patients diagnosed with Chronic Fatigue Syndrome (CFS).


Clinical Trial Description

Chronic fatigue syndrome (CFS) is characterized by severe disabling fatigue of at least six months duration that cannot be fully explained by an identifiable medical condition . Pain symptoms are also a part of the diagnostic criteria for CFS, and include muscle pain, multi-joint pain, and headaches. The prevalence of CFS ranges from 0.007 to 2.8 % in the general adult population and 0.006 to 3.0% in primary care practice (2). Although most who receive a CFS diagnosis are 30-40 years of age, Caucasian, and female, CFS affects both women and men, adults and children, and all racial and socioeconomic classes.

Patients with CFS have 2-4 times the rate of depression and anxiety compared with the general population. CFS is also commonly comorbid with fibromyalgia, a disorder characterized by chronic widespread pain, tenderness, fatigue, sleep and mood disturbances. In some samples, 70% of patients with fibromyalgia also meet criteria for CFS. CFS and fibromyalgia are characterized by greater similarities than differences and may share pathophysiologic features. Like fibromyalgia, CFS is associated with chronic pain, sleep and mood disturbances. Because fibromyalgia responds to treatment with antidepressants, particularly the dual serotonin and norepinephrine reuptake inhibitors, including duloxetine, antidepressant trials in CFS are clearly needed. ;


Study Design

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


Related Conditions & MeSH terms


NCT number NCT00375973
Study type Interventional
Source University of Cincinnati
Contact
Status Completed
Phase Phase 2/Phase 3
Start date September 2006
Completion date March 2014

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