Evidence types

Clinical study

Clinical study articles covering observational research, trial reports, and human data relevant to Crohn's disease and IBD.

Page 5 of 21 · 1007 articles

No Independent Association Between Serum Zinc Levels and Endoscopic Disease Activity Assessed by the Ulcerative Colitis Endoscopic Index of Severity: A Single-Center Retrospective Study
GE - Portuguese Journal of Gastroenterology

No Independent Association Between Serum Zinc Levels and Endoscopic Disease Activity Assessed by the Ulcerative Colitis Endoscopic Index of Severity: A Single-Center Retrospective Study

The study suggests that serum zinc by itself may not be a reliable indicator of endoscopic inflammation in UC; nutritional status and inflammation (for example albumin and CRP) can confound zinc levels.

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Clinical utility of serum leucine-rich alpha-2 glycoprotein for assessing disease activity and mucosal healing in ulcerative colitis across different treatment settings: a prospective observational cohort study
BMC Gastroenterology

Clinical utility of serum leucine-rich alpha-2 glycoprotein for assessing disease activity and mucosal healing in ulcerative colitis across different treatment settings: a prospective observational cohort study

Based on the title and source metadata, this appears to be a clinical study related to Ulcerative colitis, Inflammatory bowel disease, and Tests and monitoring. The original article is from BMC Gastroenterology.

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The Role of Astrocytes in Inflammatory Bowel Disease and Co-occurring Depression: Mechanisms and Perspectives
Cellular and Molecular Neurobiology

The Role of Astrocytes in Inflammatory Bowel Disease and Co-occurring Depression: Mechanisms and Perspectives

Based on the title and source metadata, this appears to be a clinical study related to Inflammatory bowel disease, Depression, and Research and clinical trials. The original article is from Cellular and Molecular...

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Effectiveness, safety, and clinical outcomes of treatment with the oral α4-integrin antagonist carotegrast methyl in patients with active ulcerative colitis: a multicenter observational study (CANAL study)
Inflammatory Bowel Diseases

Effectiveness, safety, and clinical outcomes of treatment with the oral α4-integrin antagonist carotegrast methyl in patients with active ulcerative colitis: a multicenter observational study (CANAL study)

This study provides real-world data suggesting the oral α4-integrin antagonist carotegrast methyl can improve patient-reported stool frequency and rectal bleeding in many people with ulcerative colitis who did not...

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Side effects of glucocorticoids and specific aspects of laboratory monitoring for osteoporosis in patients with ulcerative colitis
South Russian Journal of Therapeutic Practice

Side effects of glucocorticoids and specific aspects of laboratory monitoring for osteoporosis in patients with ulcerative colitis

Systemic glucocorticoids used for UC can cause bone loss; identifying early, noninvasive markers could let clinicians detect steroid-induced osteoporosis sooner and intervene to reduce fracture risk.

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Clinical‑microbiotic correlations in ulcerative colitis: bacterial and fungal taxa in disease relapse and remission
South Russian Journal of Therapeutic Practice

Clinical‑microbiotic correlations in ulcerative colitis: bacterial and fungal taxa in disease relapse and remission

Microbiome composition differed between relapse and remission in ulcerative colitis in this study; specific bacterial and fungal taxa were statistically associated with clinical and endoscopic activity and are proposed...

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Research progress on intestinal probiotics-mediated protection of the intestinal mucosal barrier in ulcerative colitis
Frontiers in Immunology

Research progress on intestinal probiotics-mediated protection of the intestinal mucosal barrier in ulcerative colitis

The intestinal mucosal barrier is central to ulcerative colitis. If probiotics can strengthen that barrier, they might reduce inflammation or help maintain remission. This review summarizes mechanistic and early clinical...

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Functional Gut Microbiota Alterations in Patients with Inflammatory Bowel Disease Receiving Long-Term Biologic Therapy: A Pilot Comparative Study.
Journal of clinical medicine

Functional Gut Microbiota Alterations in Patients with Inflammatory Bowel Disease Receiving Long-Term Biologic Therapy: A Pilot Comparative Study.

This study suggests that even when people with IBD are in clinical and biological remission on long-term biologic therapy, their gut microbiome composition and inferred functions can still differ from laboratory...

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Complementary Roles of Artificial Intelligence and Disease-Specific Optical Diagnosis During Ulcerative Colitis Surveillance: A Prospective Tandem Colonoscopy Study.
Journal of clinical medicine

Complementary Roles of Artificial Intelligence and Disease-Specific Optical Diagnosis During Ulcerative Colitis Surveillance: A Prospective Tandem Colonoscopy Study.

AI-assisted detection tools and disease-specific optical classifications could improve lesion detection and real-time characterization during UC surveillance, potentially affecting surveillance accuracy and...

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Prior vedolizumab exposure and fibroblast-derived MMP13 are associated with ustekinumab nonresponse in ulcerative colitis
Journal of Gastroenterology

Prior vedolizumab exposure and fibroblast-derived MMP13 are associated with ustekinumab nonresponse in ulcerative colitis

If you or your clinician are choosing between advanced therapies for ulcerative colitis, this study suggests past vedolizumab use may be linked to lower likelihood of responding to ustekinumab.

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Association of prealbumin with risk of abdominal surgery and endoscopic recurrence in Crohn’s disease: A machine learning study
World Journal of Gastroenterology

Association of prealbumin with risk of abdominal surgery and endoscopic recurrence in Crohn’s disease: A machine learning study

If validated, prealbumin — a routine blood protein test reflecting nutrition and inflammation — could help predict who with Crohn’s disease is more likely to need abdominal surgery or to have endoscopic recurrence after...

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Integrating Genetics With Epidemiological Measurements Identifies Burden QTLs of Inflammatory Bowel Disease across 20 Countries.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)

Integrating Genetics With Epidemiological Measurements Identifies Burden QTLs of Inflammatory Bowel Disease across 20 Countries.

Finding genetic variants that correlate with country-level IBD burden could help researchers study why IBD rates differ geographically and point to biological pathways relevant to disease risk and outcomes.

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Fecal calprotectin changes after polyethylene glycol bowel preparation in patients with ulcerative colitis in remission
Inflammatory Bowel Diseases

Fecal calprotectin changes after polyethylene glycol bowel preparation in patients with ulcerative colitis in remission

Fecal calprotectin is commonly used to monitor IBD activity. If bowel prep raises calprotectin modestly, that could affect how post-procedure results are interpreted and avoid unnecessary treatment changes.

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Navigating microbial balance: Insights and interventions for optimal health amid antibiotic treatment in inflammatory bowel disease
Heliyon

Navigating microbial balance: Insights and interventions for optimal health amid antibiotic treatment in inflammatory bowel disease

Antibiotics can substantially change gut microbes; for people with IBD those changes may affect inflammation and gut barrier function. The review summarizes microbiome-targeted strategies that patients and clinicians may...

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Improving Endoscopic Scoring Accuracy in Pediatric Inflammatory Bowel Disease: Impact of a Focused Training Intervention
Endoscopy International Open

Improving Endoscopic Scoring Accuracy in Pediatric Inflammatory Bowel Disease: Impact of a Focused Training Intervention

Consistent, accurate endoscopic scoring matters for treatment decisions and trial outcomes in pediatric IBD. If focused training meaningfully improves scoring—especially for SES‑CD—it could reduce variability in clinical...

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Supplementation of Bacillus cereus Enhances Anti-Colitis Effects of Triple Probiotics in Mice: Correlative Evidence for a Gut Microbiota–Spermidine-Related Axis in Quadruple-Probiotic Protection
Nutrients

Supplementation of Bacillus cereus Enhances Anti-Colitis Effects of Triple Probiotics in Mice: Correlative Evidence for a Gut Microbiota–Spermidine-Related Axis in Quadruple-Probiotic Protection

This study suggests a specific four-strain probiotic cocktail may better protect against experimental colitis than the three-strain mix, potentially via microbiota-driven increases in spermidine — a microbial metabolite...

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The Diagnostic Value of Dual-energy CT Multi-parameters in Differentiating Colorectal Cancer from Inflammatory Thickening of the Colorectal Wall.
Current medical imaging

The Diagnostic Value of Dual-energy CT Multi-parameters in Differentiating Colorectal Cancer from Inflammatory Thickening of the Colorectal Wall.

Distinguishing colorectal cancer from IBD-related inflammatory thickening can be challenging but crucial for treatment decisions. If validated, DECT parameters could offer a noninvasive tool to improve diagnostic...

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Pathogen‐Specific Bloodstream Infections Associated With Tumour Necrosis Factor‐α Inhibitors, Vedolizumab and Ustekinumab in Inflammatory Bowel Disease: A Danish Nationwide Case‐Control Study 2010–2024
Alimentary Pharmacology & Therapeutics

Pathogen‐Specific Bloodstream Infections Associated With Tumour Necrosis Factor‐α Inhibitors, Vedolizumab and Ustekinumab in Inflammatory Bowel Disease: A Danish Nationwide Case‐Control Study 2010–2024

This study compares bloodstream infection risk across commonly used biologics for IBD, which could affect decisions about choosing or monitoring biologic therapy. It also highlights that steroid co-use may increase...

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Maternal–Fetal Exposome and Early-Life Microbiota–Pattern Recognition Receptors Signaling in Inflammatory Bowel Disease Susceptibility: A Mechanistic Review
International Journal of Molecular Sciences

Maternal–Fetal Exposome and Early-Life Microbiota–Pattern Recognition Receptors Signaling in Inflammatory Bowel Disease Susceptibility: A Mechanistic Review

If true, prenatal and early-life exposures could influence long-term IBD risk by shaping immune development and the gut microbiome, which may help explain why some people develop IBD and others don’t.

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Impact of Smoking on the Effectiveness of Advanced Therapies in Inflammatory Bowel Disease: Active Smoking Is Associated with Reduced Effectiveness of Anti-TNF Treatment
Medicina

Impact of Smoking on the Effectiveness of Advanced Therapies in Inflammatory Bowel Disease: Active Smoking Is Associated with Reduced Effectiveness of Anti-TNF Treatment

The study suggests active smoking reduces the effectiveness of anti-TNF biologics in people with IBD, which could affect treatment response and the need to switch or escalate therapies. This supports including smoking...

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Patient-reported first-use usability of the noncommercial MyTARGET mobile application among adults with inflammatory bowel disease: a cross-sectional survey.
Frontiers in digital health

Patient-reported first-use usability of the noncommercial MyTARGET mobile application among adults with inflammatory bowel disease: a cross-sectional survey.

High first-use usability suggests MyTARGET could be acceptable to many adults with IBD and that targeted refinements (error handling, demonstrating time savings) might improve uptake and recommendation.

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A Reproducible Bibliometric Analysis of Perianal Fistula in Crohn's Disease Research (1992-2025): Retrieval Sensitivity and Knowledge Structure.
Journal of visualized experiments : JoVE

A Reproducible Bibliometric Analysis of Perianal Fistula in Crohn's Disease Research (1992-2025): Retrieval Sensitivity and Knowledge Structure.

A bibliometric map of perianal fistula research helps patients and clinicians see how much work exists, which centers and authors lead the field, and which topics cluster together—useful when looking for expertise or...

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Evaluation of Blood and Stool Biomarkers Across Three Fecal Calprotectin Platforms and Combination Testing for Predicting Endoscopic and Histologic Outcomes in Inflammatory Bowel Disease
Europe PMC

Evaluation of Blood and Stool Biomarkers Across Three Fecal Calprotectin Platforms and Combination Testing for Predicting Endoscopic and Histologic Outcomes in Inflammatory Bowel Disease

Noninvasive fecal biomarkers are widely used to track IBD activity. Knowing whether different FC assays give comparable results and whether combining tests adds value affects how patients and clinicians interpret...

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Ulcerative colitis, but not Crohn’s disease, displays demographically and clinically driven mucosal immune heterogeneity: implications for patient stratification
Frontiers in Immunology

Ulcerative colitis, but not Crohn’s disease, displays demographically and clinically driven mucosal immune heterogeneity: implications for patient stratification

The study suggests ulcerative colitis shows greater mucosal immune variability across sex, age and severity than Crohn’s disease, which could affect how patients are grouped for research or future personalized...

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Bowel Urgency Is More Strongly Associated with Biochemical, Endoscopic, and Histological Disease Activity than Other Clinical Symptoms in Ulcerative Colitis.
Internal medicine (Tokyo, Japan)

Bowel Urgency Is More Strongly Associated with Biochemical, Endoscopic, and Histological Disease Activity than Other Clinical Symptoms in Ulcerative Colitis.

If you have UC, bowel urgency may indicate active inflammation more reliably than some other symptoms. Recognizing urgency could help prompt timely objective testing and treatment decisions.

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Guselkumab Versus Risankizumab for Ulcerative Colitis: Real-World Comparison of Post-Induction Outcomes.
Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association

Guselkumab Versus Risankizumab for Ulcerative Colitis: Real-World Comparison of Post-Induction Outcomes.

Based on the title and source metadata, this appears to be a clinical study related to Ulcerative colitis, Inflammatory bowel disease, and Guselkumab. The original article is from Clinical gastroenterology and hepatology...

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Comparative effectiveness of infliximab vs vedolizumab as first-line biologic therapy in moderate-to-severe ulcerative colitis: A prospective, multicenter, real-world study
Inflammatory Bowel Diseases

Comparative effectiveness of infliximab vs vedolizumab as first-line biologic therapy in moderate-to-severe ulcerative colitis: A prospective, multicenter, real-world study

This study compares two commonly used biologics as first-line therapy for moderate-to-severe ulcerative colitis and reports better short- and long-term effectiveness for vedolizumab with similar safety. The results could...

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The role of blood lymphocyte levels in evaluating endoscopic remission of inflammatory bowel disease
European journal of medical research

The role of blood lymphocyte levels in evaluating endoscopic remission of inflammatory bowel disease

A simple blood lymphocyte percentage could be a convenient, non-invasive marker to help distinguish endoscopic remission from active disease in both Crohn’s and ulcerative colitis; chemokines CXCL10 and CCL25 may also...

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Distribution of CARD15/NOD2 Variants in Crohn’s Disease, Ulcerative Colitis, and Healthy Controls in a Djiboutian Population
Gastrointestinal Disorders

Distribution of CARD15/NOD2 Variants in Crohn’s Disease, Ulcerative Colitis, and Healthy Controls in a Djiboutian Population

The report explores NOD2/CARD15 variants in a Djiboutian IBD cohort and suggests higher variant frequencies in Crohn’s disease, which could point to population-specific genetic susceptibility. It also raises khat use as...

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Interaction between intestinal microbiota, inflammatory cytokines, and the expression of miR-330-3p and miR-515-5p in patients with ulcerative colitis.
Journal of medical biochemistry

Interaction between intestinal microbiota, inflammatory cytokines, and the expression of miR-330-3p and miR-515-5p in patients with ulcerative colitis.

The paper links specific gut bacteria, inflammatory cytokines, and two microRNAs with UC activity, which could point toward new diagnostic biomarkers or targets for research into disease mechanisms.

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Insight into Ulcerative Colitis and Associated Diarrhea: Exploring the Interplay of Cellular and Molecular Axis with Advancement in Treatments.
Recent advances in inflammation & allergy drug discovery

Insight into Ulcerative Colitis and Associated Diarrhea: Exploring the Interplay of Cellular and Molecular Axis with Advancement in Treatments.

Persistent diarrhea is a common, quality-of-life–limiting problem in ulcerative colitis; this review synthesizes how epithelial transport, barrier damage, immune signaling, mitochondria, and microbiota interact and...

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Janus Kinase Inhibitors for Acute Severe Ulcerative Colitis: Comparing Upadacitinib to Tofacitinib and Rescue to Sequential Salvage therapy.
Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association

Janus Kinase Inhibitors for Acute Severe Ulcerative Colitis: Comparing Upadacitinib to Tofacitinib and Rescue to Sequential Salvage therapy.

This study compares two JAK inhibitors (upadacitinib and tofacitinib) used as rescue therapy for acute severe ulcerative colitis and reports lower 1‑year colectomy rates with upadacitinib. That could influence choices...

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Multicenter Validation of a ResNet50-Based Deep Convolutional Network for Endoscopic Grading of Ulcerative Colitis Severity
Springer Science and Business Media LLC

Multicenter Validation of a ResNet50-Based Deep Convolutional Network for Endoscopic Grading of Ulcerative Colitis Severity

Automated, validated grading of UC on colonoscopy images could reduce variability between endoscopists and help standardize severity assessment that influences treatment planning.

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Colonoscopic and histopathological findings in obese patients with fibroscan-detected hepatic steatosis: a cross-sectional study
Egyptian Liver Journal

Colonoscopic and histopathological findings in obese patients with fibroscan-detected hepatic steatosis: a cross-sectional study

Obese patients with FibroScan-detected steatosis in this cohort had a high frequency of colitis and some cases of IBD, dysplasia, and cancer, which could affect screening and symptom evaluation decisions.

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