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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT01493349
Other study ID # 11-2-058
Secondary ID
Status Not yet recruiting
Phase N/A
First received December 14, 2011
Last updated January 4, 2012
Start date January 2012
Est. completion date October 2014

Study information

Verified date January 2012
Source Maastricht University Medical Center
Contact Renske Deutz, MD
Phone 1-31-43-3884190
Email r.deutz@maastrichtuniversity.nl
Is FDA regulated No
Health authority Netherlands: The Central Committee on Research Involving Human Subjects (CCMO)
Study type Observational

Clinical Trial Summary

Colonic diverticular disease is a highly prevalent condition in Western populations. The prevalence increases age-dependently from 5% at 40 years to 65% by the age of 85 years (1-3). The majority remain asymptomatic. However, a significant proportion of the patient population develops complications, such as diverticulitis with or without symptoms (10-20%) (1, 4-10). Perforated diverticulitis is rare with an estimated incidence of 4 per 100.000 per year, but the associated mortality rate is 22% to 39% (9, 11, 12). In the United States, the complications related to diverticular disease account for 130.000 hospitalizations each year, resulting in substantial health care costs (13). In Europe, it is estimated that approximately 23.600 deaths per year can be attributed to complicated diverticular disease, and the mortality will probably increase in the future due to the aging population (15-17). Several case studies report an overall increase in the incidence of diverticulitis, based on the increase in hospitalizations (18). Kang et al, reported a 16% increased male admission rate and 12% female admission rate for diverticulitis, between 1989/1990 and 1999/2000 (19). Aging and the Western diet, low in fiber and high in fat, in combination with increased intraluminal pressure and alterations in colonic motility are considered important etiological factors. A disturbance in large bowel motility is suggested to be a common pathophysiological feature in IBS and diverticular disease (20, 21). Based on observations that IBD, subgroups of IBS and (symptomatic) diverticular disease share clinical symptoms, the hypothesis is derived that they might also share pathophysiological factors like low grade inflammation, changed microbiota composition and activity, and increased intestinal permeability. The identification of clinical and pathophysiological factors associated with an increased risk for complicated diverticular disease may help to identify patients with diverticular disease, prevent complications, develop strategies to improve quality of life and reduce the related health care costs. Therefore we aim to investigate the composition of luminal and mucosal intestinal microbiota and the intestinal permeability in the development of diverticular disease and complicated diverticular disease. We hypothesize that both the intestinal microbiota and intestinal permeability are altered in patients with (current- or previous history of complicated) diverticular disease.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 210
Est. completion date October 2014
Est. primary completion date October 2013
Accepts healthy volunteers No
Gender Both
Age group 50 Years to 75 Years
Eligibility Inclusion Criteria:

- Age = 50 years and = 75 years

- Scheduled for colonoscopy

- Written informed consent

- Patient group: The presence of diverticulosis, diagnosed during the scheduled colonoscopy

- Control group: During the scheduled colonoscopy, diverticulosis or other

- gastrointestinal and liver diseases are absent. In other words, the

- colonoscopy is qualified as a 'normal' colonoscopy.

Exclusion Criteria:

- Age < 18 years

- Presence of gastrointestinal and liver diseases, such as inflammatory bowel disease.

- Use of NSAID's and proton pump inhibitors, during the 5-day time period prior to endoscopy.

- Alcohol intake above 14 consumptions per week for males and 7 consumption per week for females

- (Sub)total colectomy or hemicolectomy.

- Refusal to participate in this study

Study Design

Time Perspective: Cross-Sectional


Locations

Country Name City State
Netherlands Maastricht University Medical Center Maastricht Limburg

Sponsors (1)

Lead Sponsor Collaborator
Maastricht University Medical Center

Country where clinical trial is conducted

Netherlands, 

Outcome

Type Measure Description Time frame Safety issue
Primary intestinal (luminal and mucosal) microbiota composition up to 2 years No
Secondary Expression of tight junction proteins up to 2 years No
Secondary Intestinal permeability up to 2 years No
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