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Crohn’s Disease, Obesity and Disease Severity (CROHN_OBESE)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified March 2007 by Tel-Aviv Sourasky Medical Center.
Recruitment status was:  Recruiting
Information provided by:
Tel-Aviv Sourasky Medical Center Identifier:
First received: June 17, 2007
Last updated: June 18, 2007
Last verified: March 2007
The aim of our study is to suggest possible underlying mechanisms for the observed clinical differences in disease severity and behavior of overweight and obese patients with crohn's disease(BMI > 25 kg/m²)as compare to non-obese crohn's patients with a normal or low weight ( BMI ≤ 25) by measuring metabolic\nutritional variables and cytokine levels.

Crohn’s Disease, Obesity

Study Type: Observational
Study Design: Observational Model: Defined Population
Time Perspective: Cross-Sectional
Time Perspective: Prospective
Official Title: Crohn’s Disease, Obesity and Disease Severity

Resource links provided by NLM:

Further study details as provided by Tel-Aviv Sourasky Medical Center:

Estimated Enrollment: 40
Study Start Date: June 2007
Estimated Study Completion Date: December 2007
Detailed Description:

Crohn’s disease (CD) is a chronic intestinal disorder of unknown etiology that may involve any part of the gastrointestinal tract. The small bowel is involved in 70% of CD patients.

Undernutrition expressed in low body mass index (BMI) <18.5 kg/m², is a common presentation and has been reported in 65–75% of these patients. Possible pathogenic mechanisms include inadequate dietary intake ,increased energy expenditure, nutrient malabsorption and intestinal losses. We have studied recently these three important components of energy balance of underweight crohn’s patients and found that nutrient malabsorption may play a role.

Although the majority of crohn's disease patients are undernourished , some of them are surprisingly obese and their symptoms seem be more severe; Blain A et al. have reported recently that obesity in CD has been associated with more frequent anoperineal complications and a more marked disease activity. Hass J et al have found that overweight CD patients require earlier surgical intervention and perhaps more aggressive medical therapy. Notwithstanding, the characteristics of CD and possible underlying pathophysiological mechanisms in obese patients have not been studied yet.

Mesenteric hypertrophied fat commonly called “creeping fat is a common feature of crohn's disease and has been reported to correlate with ulceration, stricture formation and transmural inflammation. It is a matter of debate whether the development of creeping fat is a causative or secondary phenomenon ,but there is increasing body of evidence that suggest that mesenteric adipose tissue plays an active role in the pathogenesis of creeping fat and mesenteric inflammation by pro-inflammatory and anti-inflammatory adipocytokines.

Recently there is more recognition that adipose tissue is not a passive connective tissue merely storing fat but an activeendocrine organ which participates in numerous physiological and pathophysiological processes with variety of secretory products designated adipocytokines that regulate metabolic processes in an endocrine ,paracrine and autocrine manner Moreover, Obesity is increasingly being recognized as a risk factor for a number of gastrointestinal conditions as well as being characterized by a chronic, systemic low-grade state of inflammation per se. Biomarkers of inflammation, such as the leukocyte count, tumor necrosis factor-alpha (TNF-alpha), interleukin 6 (IL-6), and C-reactive protein, are increased in obesity and have been related to insulin resistance and the metabolic syndrome.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion criteria:

  1. Age > 18 years
  2. No other chronic diseases except obesity -related (NAFLD, NASH etc).
  3. Stable (LESS THAN 10% CHANGE) body weight during the 3 months preceding the study.

Exclusion criteria:

  1. Patients with internal fistulae (perianal disease allowed)
  2. Ileostomy or colostomy
  3. Pregnancy
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00488085

Contact: Nachum Vaisman, Prof. +972-524-266-596
Contact: Iris Dotan, Dr. +972-524-266-607

The Unit of Clinical Nutrition Recruiting
Tel Aviv, Israel
Sponsors and Collaborators
Tel-Aviv Sourasky Medical Center
Study Director: Nachum Vaisman, Prof. The Unit of Clinical Nutrition
  More Information Identifier: NCT00488085     History of Changes
Other Study ID Numbers: TASMC-07-ID-173-CTIL
Study First Received: June 17, 2007
Last Updated: June 18, 2007

Keywords provided by Tel-Aviv Sourasky Medical Center:
Crohn’s disease, obesity, REE, body composition, fat absorption

Additional relevant MeSH terms:
Crohn Disease
Nutrition Disorders
Body Weight
Signs and Symptoms
Inflammatory Bowel Diseases
Gastrointestinal Diseases
Digestive System Diseases
Intestinal Diseases processed this record on September 21, 2017