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Colonoscopy-related Pain Predicts the Treatment Response of Amitriptyline in Patients With Irritable Bowel Syndrome

Irritable Bowel Syndrome Clinical Trial

Official title:
Colonoscopy-related Pain Predicts the Treatment Response of Amitriptyline in Patients With Irritable Bowel Syndrome

Clinical Trial Summary

Irritable bowel syndrome (IBS) is a functional bowel disorder with recurrent abdominal pain and disordered defecation and is one of the most common gastrointestinal problems. In practice, IBS was frequently diagnosed as an exclusion diagnosis for patients with recurrent abdominal pain without an organic cause. Visceral hypersensitivity is the major contributing factor of abdominal pain in IBS. Accordingly, tricyclic antidepressants (TCAs) are widely used for IBS, especially if abdominal pain is a prominent symptom. Indeed, meta-analysis also exhibits the clinically significant efficacy of low dose TCAs in IBS. Nevertheless, over 40% of IBS patients receiving TCAs had no improvement in symptoms after treatment. Theoretically, if TCAs are used for IBS patients with hypersensitivity, its efficacy could be increased.

Although rectal distension test might be used to identify hypersensitive patients with IBS, it has been used only for clinical research because it is painful for the patient. On the contrary, colonoscopy is frequently performed in IBS patients to rule out organic disease and for the purpose of colorectal cancer screening. In a study by Kim and colleagues, IBS patients reported higher pain score after colonoscopy than non-IBS patients. This has prompted the hypothesis that pain scoring during/after colonoscopy could also segregate IBS patients with visceral hypersensitivity showing better treatment response of TCA than those without.

The aims of the present study were to evaluate the colonoscopy-related pain perception and the treatment response of amitriptyline in IBS patients and to investigate the predictive values of the colonoscopy-related pain scale in identifying IBS patients with a response to amitriptyline treatment.

Clinical Trial Description

n/a

Study Design

Observational Model: Case-Only, Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02638870
Study type Observational
Source Samsung Medical Center
Contact Yang Won Min, M.D.
Phone +82-10-2656-2293
Email gwon.min@samsung.com
Status Not yet recruiting
Phase N/A
Start date January 2016
Completion date October 2016
View Details
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