Validation of Surrogate Measures in Irritable Bowel Syndrome (IBS)

Status Completed

Clinical Trial Summary

Visceral and somatic hypersensitivity as evidence of central sensory sensitization occur in the majority of Irritable Bowel Syndrome (IBS) patients. We recently demonstrated abnormal endogenous pain modulation as a cause of the sensitization in IBS and identified the underlying dysfunctional neuromatrix using functional MR-imaging (fMRI). Endogenous pain mechanisms regulate, fine-tune and integrate sensory and homeostatic, including neuroendocrine, immune and autonomic nervous system processes. Specific measures of sensitization and endogenous pain modulation correlate with clinical measures of somatic and neuropathic pain, suggesting usefulness as surrogate markers for clinical pain outcomes. Validation of experimental measures as surrogate markers in IBS would provide a considerable advance in pathophysiological and therapeutic research in this pharmacoeconomically burdensome disease.

Clinical Trial Description

n/a

Study Design

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

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00693732
Study type	Interventional
Source	National University Hospital, Singapore
Contact
Status	Completed
Phase	Phase 4
Start date	February 2009
Completion date	January 2012

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