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Related Concept Videos

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

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Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
637
Inflammatory Bowel Disease IV: Pharmacological Management01:29

Inflammatory Bowel Disease IV: Pharmacological Management

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Upon diagnosis, managing Inflammatory Bowel Disease (IBD) involves addressing several crucial aspects. The primary goals include resting the bowel, correcting malnutrition, and providing symptomatic relief. Resting the bowel may consist of medications to reduce inflammation and promote healing. Correcting malnutrition is essential, often requiring dietary adjustments and nutritional supplements. Symptomatic relief aims to ease pain, diarrhea, and other discomforts in IBD.
Pharmacologic...
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Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

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Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
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Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

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Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
894
Inflammatory Bowel Disease II: Crohn's Disease01:30

Inflammatory Bowel Disease II: Crohn's Disease

952
Introduction
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
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Study Designs in Epidemiology01:20

Study Designs in Epidemiology

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Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
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Related Experiment Video

Updated: Jan 15, 2026

Evaluating Therapeutic Interventions in the SHIP-deficient Mouse Model of Crohn Disease-like Ileitis and Fibrosis
09:44

Evaluating Therapeutic Interventions in the SHIP-deficient Mouse Model of Crohn Disease-like Ileitis and Fibrosis

Published on: October 14, 2025

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How Should an IBD Prevention Trial Be Designed?

Rogier L Goetgebuer1, Ryan C Ungaro2, Brian G Feagan3

  • 1Department of Gastroenterology and Hepatology, Amsterdam University Medical Center, Amsterdam, the Netherlands.

Inflammatory Bowel Diseases
|October 13, 2025
PubMed
Summary
This summary is machine-generated.

Designing inflammatory bowel disease (IBD) prevention trials requires careful planning. Learning from other immune-mediated inflammatory diseases (IMIDs) can guide the development of predictive tools and interventions for at-risk individuals.

Keywords:
Crohn’s diseaseinflammatory bowel diseaseinterceptionpreventiontrial designulcerative colitis

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Area of Science:

  • Gastroenterology and Immunology
  • Clinical Trial Design
  • Preventive Medicine

Background:

  • Inflammatory bowel disease (IBD) has a preclinical phase, presenting an opportunity for early intervention.
  • Interest in IBD prevention trials for at-risk individuals is growing, but guidance is limited.
  • This review synthesizes key considerations for designing IBD prevention trials.

Purpose of the Study:

  • To outline essential considerations for establishing IBD prevention trials.
  • To provide guidance drawing from prevention trials in other immune-mediated inflammatory diseases (IMIDs).

Main Methods:

  • Literature review focusing on prevention trials in IMIDs.
  • Analysis of trial design, risk stratification, participant selection, endpoints, and ethical aspects.
  • Emphasis on secondary prevention trial setup.

Main Results:

  • Successful IMID prevention trials utilize well-defined at-risk cohorts, predictive biomarkers, and feasible interventions.
  • Key design elements include biomarker-based monitoring, clear inclusion/exclusion criteria (primary vs. secondary prevention), time-to-event endpoints, risk-benefit analysis of interventions, and participant engagement.
  • First-degree relatives are a promising group for IBD screening, though challenges in risk definition and intervention selection persist.

Conclusions:

  • IBD prevention trials show promise but necessitate meticulous design informed by IMID experiences.
  • Development of validated predictive tools, ethical interventions, and international collaboration are crucial for successful trials.
  • Assembling well-powered at-risk cohorts is essential for advancing IBD prevention research.