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252 clinical studies listed.

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Crohn Disease

Tundra lists 252 Crohn Disease clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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NOT YET RECRUITING

NCT07872449

Risankizumab for Refractory Perianal Fistulizing Crohn's Disease

Crohn's disease is an inflammatory bowel disease characterized by relapses and remissions, causing lesions throughout the digestive tract and accompanied by diarrhea, abdominal pain, and nutritional disorders. In Japan particularly, the incidence of anal lesions is high, with approximately half of patients developing fistulas or abscesses, significantly impairing quality of life (QOL). For perianal fistulizing Crohn's disease (PFCD), combined treatment with surgical intervention (e.g., seton placement) and medical therapy centered on anti-TNF agents is standard. However, challenges remain regarding efficacy rates and evaluation criteria. Novel therapies such as stem cell therapy, JAK inhibitors, and IL-23 inhibitors are gaining attention. This study using risankizumab aims to be the first in Japan to comprehensively evaluate the therapeutic efficacy of PFCD using both clinical and MRI assessments, thereby contributing to future treatment standardization and guideline development.

Gender: All

Ages: 15 Years - Any

Updated: 2026-10-19

Crohn Disease
Perianal Fistula
Perianal Fistula Due to Crohn's Disease
+1
NOT YET RECRUITING

NCT07877649

Longitudinal Registry of Difficult-to-Treat Inflammatory Bowel Disease

Difficult-to-treat inflammatory bowel disease (DTT-IBD) represents a heterogeneous group of patients with treatment-refractory, structurally complicated, postoperative, perianal, pouch-related, or psychosocially complex disease. This multicentre ambidirectional observational cohort will establish a longitudinal registry of adults with inflammatory bowel disease and systematically identify patients meeting prespecified DTT-IBD criteria. Clinical data will be reconstructed retrospectively and collected prospectively using a common data dictionary, including disease phenotype, advanced-therapy exposure and failure, objective disease assessments, multidisciplinary decision-making, treatment implementation, surgery, hospitalization, and long-term outcomes. The registry will characterize the occurrence, clinical domains, treatment trajectories, longitudinal disease-control states, and outcomes of DTT-IBD. No treatment, diagnostic test, dose, surgery, or monitoring procedure will be assigned by the study. Clinical management will remain entirely at the discretion of the treating physicians and patients. The platform is designed to support prespecified nested studies addressing treatment-failure mechanisms and clinical decisions, longitudinal DTT trajectories and cumulative uncontrolled disease, and implementation of multidisciplinary care.

Gender: All

Ages: 16 Years - Any

Updated: 2026-10-16

Inflammatory Bowel Diseases (IBD)
Crohn Disease
Colitis, Ulcerative
RECRUITING

NCT07095634

Estimation of Cardiovascular Risk in Patients With Crohn's Disease and Ulcerative Colitis (PROVACI)

Inflammatory bowel diseases (IBD) are progressively increasing their prevalence worldwide. Up to half of patients may also have extraintestinal manifestation and cardiovascular diseases (CVDs) is one of the most relevant, being the second cause of death in these patients. The classical cardiovascular (CV) risk scores do not adquately capture the CV risk in IBD. We are planning a prospective observational study to evaluate patients with IBD and a gender/age-matched cohort with the aims to investigate in 2-years follow-up * Occurrence of major cardiovascular events (MACEs) in both cohorts; * Predictive factors of risk for MACEs in IBD compared to controls; * Multi-omics evaluations with the support of artificial intelligence of biomarkers associated with occurrence of MACEs in IBD

Gender: All

Ages: 16 Years - Any

Updated: 2026-10-16

1 state

Ulcerative Colitis
Myocardial Infarction
Stroke
+6
RECRUITING

NCT07775352

Intestinal Ultrasound Guided Management in Inflammatory Bowel Disease

This randomized controlled trial evaluates whether adding point-of-care intestinal ultrasound (IUS) to standard of care changes clinical management in patients with inflammatory bowel disease (IBD). Adult patients with Crohn's disease or ulcerative colitis undergoing colonoscopy for disease assessment are randomized 1:1 to standard of care plus IUS at every visit, or standard of care alone, and followed for 48 weeks. The primary outcome is the proportion of patients with a change in treatment.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-14

Inflammatory Bowel Diseases
Crohn Disease
Colitis, Ulcerative
RECRUITING

NCT07577843

A Study of JNJ-78934804 in Participants With Moderately to Severely Active Crohn's Disease

The purpose of this study is to assess how well JNJ-78934804 works (efficacy) and how safe it is (safety) as compared to guselkumab at Week 48 in participants with moderately to severely active Crohn's disease (a long-term, progressive \[worsens with time\] and life-threatening disease of the intestine).

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-14

21 states

Crohn Disease
COMPLETED

NCT05299931

An Open-Label Extension and Long-term Efficacy and Safety Monitoring Study of Patients With Crohn's Disease Previously Included in the Loss of RESponse to Ustekinumab Treated by Dose Escalation Study

The aim of the study is to assess the long-term efficacy and safety of a ustekinumab 90mg subcutaneous (SC) every 4 weeks (Q4w) regimen in patients with Crohn's disease previously enrolled in the REScUE study (NCT04245215) because of secondary loss of response to a ustekinumab 90mg SC every 8 weeks (Q8w) regimen.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-13

Crohn Disease
COMPLETED

NCT07170462

Cranberry and Gut Health in Crohn's Disease

This study is investigating whether a cranberry-based dietary supplement, rich in polyphenols and fiber, can enhance gut health in individuals with Crohn's disease. People with Crohn's disease often have an imbalance in their gut microbiome (the community of bacteria in the gut). Previous research suggests that cranberry compounds may help support beneficial gut bacteria. In this study, adults with Crohn's disease will be randomly assigned to one of two groups: one group will receive a cranberry supplement to take once daily for 10 weeks, and the other group will receive a placebo (a supplement with no active ingredients). All participants will be asked to complete online questionnaires and collect samples of their blood, urine, and stool at four time points over a total of 15 weeks. These samples will help researchers understand how the cranberry supplement affects the gut microbiome, inflammation, and overall health. Participation is voluntary, and participants can withdraw from the study at any time. The results of this study may help identify new diet-based approaches to improve gut health in individuals with Crohn's disease.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-10-13

1 state

Crohn Disease (CD)
Crohn Disease
RECRUITING

NCT06042387

Genome Analysis Across Populations in Inflammatory Bowel Disease

Objective: To use clinical, genetic and genome analysis to better understand and define the genetic and environmental factors that contribute to IBD within affected populations.

Gender: All

Updated: 2026-10-09

1 state

Ulcerative Colitis
Healthy
Crohn Disease
+1
ACTIVE NOT RECRUITING

NCT06419335

Reducing Fatigue With CoQ10 Supplementation in Patients With Crohn's Disease Study

This study includes an open label clinical trial comparing two doses of CoQ10 for 8 weeks to improve fatigue among patients with Crohn's disease and a prospective cohort study of healthy controls taking CoQ10 for 2 weeks. Additionally, among 15 participants who do not meet the fatigue threshold for the open label trial, the investigators will measure CoQ10 levels in blood and fasting urine, as well as complete the same data collection. Hypotheses 1. Fatigue will improve with CoQ10 and there will be a dose response with greater improvement with higher dose as measured by the Patient Reported Outcomes Measurement Information Systems Fatigue PROMIS Fatigue 7a instrument. 2. Fatigue will improve when measured with other fatigue scales in a similar dose dependent manner and that general and physical fatigue will improve more than mental fatigue. 3. CoQ10 will improve quality of life as measured with the short Inflammatory Bowel Disease Questionnaire (sIBDQ).

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-10-09

1 state

Crohn Disease
Healthy
ACTIVE NOT RECRUITING

NCT05998577

A Personalized Approach to Abdominal Pain in Irritable Bowel Syndrome

Apart from its use to provide insight in IBS disease courses and in clinical research, ESM can provide patients with feedback about individual triggers of their symptoms, and thereby function as part of a personalized therapeutic strategy. This is also true for IBD-IBS. Treatment strategies in IBS and IBD-IBS are largely based on reassurance, identification and elimination of triggering factors, and in more severe cases pharmaco- and psychotherapy. The ESM approach has the potential to increase therapeutic efficacy in IBS and IBD-IBS and will assist patients in disease self-management. The Traqq application can provide more detailed information about the dietary pattern of IBS and IBD-IBS patients. Traqq in combination with ESM will give an overview of abdominal pain and associated symptoms and psychosocial factors are exposed to during the day. The insight provided using ESM and Traqq may improve patient understanding of their personal symptom dynamics and triggers, as well as the physician's insight into the symptom patters of the specific patients, which may aid treatment choice and eventually improve the outcome of any treatment provided in daily clinical care.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-10-08

1 state

Irritable Bowel Syndrome
Inflammatory Bowel Diseases
Crohn Disease
+3
RECRUITING

NCT07483099

A Study of LY4395089 and Mirikizumab (LY3074828) Given Together and Mirikizumab (Alone) in Adults With Crohn's Disease

The main purpose of this study is to see how the safety and efficacy of a farnesoid X receptor (FXR) agonist (LY4395089), given together with mirikizumab compares with mirikizumab (alone) in adults with moderately to severely active Crohn's disease (CD). This study is part of the IIBD master protocol and will last approximately 62 weeks.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-10-08

11 states

Crohn Disease
RECRUITING

NCT07483073

A Master Protocol (IIBD): A Study of Multiple Drugs in Adults With Ulcerative Colitis or Crohn's Disease

Study IIBD is a master protocol that will support a collection of individual sub studies that share key design components. Participants will be assigned to the appropriate study prior to randomization to a treatment group. The studies aim to evaluate the efficacy and safety of new treatments in adults with moderately to severely active ulcerative colitis or Crohn's disease and will last at least 62 weeks.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-10-08

11 states

Colitis, Ulcerative
Crohn Disease
ACTIVE NOT RECRUITING

NCT05668013

A Study to Evaluate the Long-Term Effect of TEV-48574 in Moderate to Severe Ulcerative Colitis or Crohn's Disease

The primary objective of the study is to evaluate the efficacy of 2 different maintenance dose regimens of TEV-48574 subcutaneous (sc) administered every 4 weeks (Q4W) in adult participants with inflammatory bowel disease (IBD). Secondary objectives of the study are to: * evaluate the efficacy of 2 different maintenance dose regimens of TEV-48574 sc administered Q4W in adult participants with IBD * evaluate the safety and tolerability of 2 different maintenance dose regimens of TEV-48574 sc administered Q4W in adult participants with IBD * evaluate the immunogenicity of 2 different maintenance dose regimens of TEV-48574 sc administered Q4W in adult participants with IBD The total duration for a participant in the double-blind period only is 66 weeks; and for a participant in the open-label extension (OLE) period, up to an additional 268 weeks.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-10-06

11 states

Crohn Disease
Colitis, Ulcerative
RECRUITING

NCT03816345

Testing an Immunotherapy Anti-cancer Drug, Nivolumab, for Advanced Cancers in Patients With Autoimmune Disorders, AIM-NIVO

This phase Ib trial studies the side effects of nivolumab and to see how well it works alone and in combination with other treatments, such as ipilimumab, cabozantinib, platinum containing therapy, and fluoropyrimidine, in treating patients with autoimmune disorders and cancer that has spread from where it first started (primary site) to nearby tissue, lymph nodes, or distant parts of the body (advanced), to other places in the body (metastatic) or cannot removed by surgery (unresectable). Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Cabozantinib blocks certain proteins, which may help keep tumor cells from growing. It may also prevent the growth of new blood vessels that tumors need to grow. Cabozantinib is a type of tyrosine kinase inhibitor and a type of angiogenesis inhibitor. Chemotherapy drugs, such as platinum containing therapies and fluoropyrimidine, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving nivolumab alone and in combination with other treatments, including ipilimumab, cabozantinib, platinum containing therapy, or fluoropyrimidine, may be safe, tolerable, and/or effective in treating patients with autoimmune disorders and advanced, metastatic, or unresectable cancer.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-05

20 states

Autoimmune Disease
Crohn Disease
Dermatomyositis
+11
RECRUITING

NCT07654751

A Remotely Conducted Study to Assess Concentration of TREMFYA in Breast Milk of Lactating Women Who Are Receiving TREMFYA Therapeutically

The purpose of this post-marketing study is to assess the amount of guselkumab in breast milk of lactating women receiving guselkumab as part of their standard clinical care provided by their treating physician, for any of the approved indications. This is a fully remote (virtual) study. Participants can complete all study-related activities, including consent, study visits, and breast milk sample collection, from home without attending an in-person study site.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-10-05

1 state

Psoriasis
Colitis, Ulcerative
Crohn Disease
+1
RECRUITING

NCT06651281

Extension Study of Long-term Safety and Efficacy of Tulisokibart in Participants With Crohn's Disease or Ulcerative Colitis (MK-7240-011)

Researchers want to learn more about tulisokibart (also known as MK-7240) in an extension study. Tulisokibart is a medicine designed to treat active, moderate to severe Crohn's disease (CD) and ulcerative colitis (UC). An extension study is a type of study where people who received tulisokibart in certain other studies for CD or UC (called a parent study) may be able to join this study. The goals of this study are to learn about the safety of tulisokibart over time in people with CD or UC, and if people tolerate it.

Gender: All

Updated: 2026-10-02

24 states

Crohn Disease
Colitis, Ulcerative
RECRUITING

NCT07033208

Feasibility of a Wireless Thermal Capsule Endoscopy to Detect Gastrointestinal Thermal Variance

The goal of this research is to learn how a new device called the wireless thermal capsule (WTC) can collect thermal data to help see diseases that happen in the gastrointestinal (GI) tract, such as Crohn's Disease.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-10-02

1 state

Crohn Disease
Inflammatory Bowel Diseases
Healthy
NOT YET RECRUITING

NCT07855055

Early Changes in Inflammatory Indices and Healing in IBD

This prospective observational study aims to evaluate early changes in blood-based inflammatory indices during the first 4 weeks after treatment initiation or escalation and their relation to endoscopic and histological healing at 12 to 16 weeks in adult patients with inflammatory bowel disease.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-02

Inflammatory Bowel Disease
Ulcerative Colitis
Crohn Disease
ACTIVE NOT RECRUITING

NCT04565821

Feasibility Study to Assess a Trans-nasal Intestinal Potential Difference Probe

The purpose of this study is to examine the feasibility of using a trans-nasal IPD probe as a measurement tool for gut permeability

Gender: All

Ages: 18 Years - 60 Years

Updated: 2026-10-02

1 state

Inflammatory Disease
Permeability; Increased
Crohn Disease
+2
NOT YET RECRUITING

NCT07851207

A Study to Assess Guselkumab in Participants With Moderate-to-Severe Inflammatory Bowel Disease in Real Life Italian Setting

The purpose of this study is to characterize participants with Crohn's Disease (CD) and Ulcerative Colitis (UC) receiving guselkumab in a real-world setting, and to evaluate treatment persistence (continuation) and clinical effectiveness (how well it works) in the overall population and in predefined participant subgroups. The study will also assess patient-reported outcomes, including fatigue (low energy), health-related quality of life (HRQoL), and treatment satisfaction. CD and UC are long-term diseases that cause inflammation in intestine (part of digestive system).

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-01

Colitis, Ulcerative
Crohn Disease
Inflammatory Bowel Diseases
NOT YET RECRUITING

NCT07795476

Artificial Intelligence For Outcomes Research in Crohn's Disease: Digital Pathology Assessment of Fibrosis and Association With Patient History and Clinical Outcomes

The goal of this retrospective observational study is to learn whether artificial intelligence-based digital pathology can measure intestinal fibrosis and help identify patients with Crohn's disease who may be at greater risk of disease progression and surgery. The main questions the study aims to answer are: Does the FibroNest Phenotypic Fibrosis Composite Score \[Ph-FCS(Muc)\], measured from routinely collected ileal biopsies, reflect the severity of fibrosis assessed by a pathologist? * Is Ph-FCS(Muc) associated with Crohn's disease characteristics and history? * Can Ph-FCS(Muc) help predict whether a patient will subsequently require a first ileal surgical resection for fibrostenotic Crohn's disease? Researchers will retrospectively analyze previously collected ileal biopsies and medical information from adults with Crohn's disease. Biopsy slides will be digitized and analyzed using FibroNest digital pathology, and the resulting fibrosis measurements will be compared with pathologist assessments, clinical characteristics, disease history, and subsequent clinical outcomes.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-10-01

1 state

Crohn Disease
Fibrostenotic Crohn's Disease
CD - Crohn's Disease
RECRUITING

NCT05906576

Post-marketing Registry Study of Infliximab for Injection in Chinese Pediatric Crohn's Disease Patients

Post-marketing registration of Infliximab for injection in Chinese pediatric Crohn's disease patients.

Gender: All

Ages: 6 Years - 17 Years

Updated: 2026-09-30

Crohn Disease
ACTIVE NOT RECRUITING

NCT05633706

Evaluation of the SIMBA Capsule for Small Intestinal Dysbiosis

The SIMBA Capsule is a small, single-use, ingestible capsule that allows for the non-invasive sampling of small bowel contents using purely mechanical means. The study will compare the microbial and metabolomics analysis from the sample collected with the capsule series, to same-participant symptom questionnaires and stool microbial analysis.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-09-30

1 state

Irritable Bowel Syndrome
Crohn Disease
Celiac Disease
+4
NOT YET RECRUITING

NCT07848737

A Real-World Study of Guselkumab Persistence and Effectiveness in Participants With Crohn's Disease or Ulcerative Colitis

The purpose of this study is to evaluate how long participants with moderate-to-severe Crohn's Disease (CD) and Ulcerative Colitis (UC) continue treatment with guselkumab in a real-world setting. CD and UC are long-term diseases that cause inflammation in intestine (part of digestive system).

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-30

Colitis, Ulcerative
Crohn Disease