Condition
Crohn Disease (CD) clinical trials and research
As of November 12, 2026, Find a Trial lists 54 Crohn Disease (CD) clinical trials that are recruiting, at sites in 21 countries (most in France (11), China (9), United States (7)). 1 was first registered in the last 30 days. By phase: Phase 2 (4), Phase 4 (4), Phase 1/2 (3). The most active sponsors are Sixth Affiliated Hospital, Sun Yat-sen University (5), Asian Institute of Gastroenterology, India (3), Groupe d'Etude Therapeutique des Affections Inflammatoires Digestives (3). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 54Clinical trials
- 1New in 30 days
- 21Countries
Newest Crohn Disease (CD) clinical trials
All recruiting trials (54)
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Reduce ultra-processed foods to help kids with Crohn's stay in remission longer
This study tests whether and how reducing ultra-processed foods with dietitian guidance helps children and teens with Crohn's disease stay in remission longer.
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Endoscopic stricturotomy vs balloon dilation for small bowel Crohn’s stricture
This trial tests whether endoscopic stricturotomy can be safely and effectively used to treat small bowel fibrotic strictures in Crohn’s disease, compared with endoscopic balloon dilation.
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Prediction of postoperative recurrence in Crohn's disease after surgery
A multicenter study will test a multimodal model to predict which Crohn's patients are likely to have disease recur after intestinal resection.
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Perianal fistula imaging comparison using TPUS, MRI, EUS, and EUA
This study tests how well four imaging methods—transperineal ultrasound, MRI, endoscopic ultrasound, and examination under anesthesia—detect and describe perianal fistulas in adults with Crohn's disease or unknown cause.
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Familial IBD Early Risk
This study tests whether clinical, environmental, and immune factors in first-degree relatives of people with Crohn’s disease or ulcerative colitis can predict who will develop IBD.
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Impact of sucralose on gut health in Crohn's disease
This study tests whether the non-nutritive sweetener sucralose changes gut bacteria in adults with Crohn's disease compared to healthy controls.
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Characterization of Colorectal Dysplastic Lesions and Changes in Risk in IBD Patients
This study tests how colorectal dysplastic lesions in adults with Crohn disease or ulcerative colitis change over time to help tailor screening and treatment.
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Postoperative biologic therapy in Crohn's disease: which agent works best to prevent recurrence after surgery?
This study looks back at adults with Crohn's disease to see if different biologic medicines given after ileocecal or other bowel surgery help prevent endoscopic recurrence within a year.
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Biomarker Discovery and Validation Platform for Inflammatory Bowel Disease
Researchers are testing biomarker models to see if they can measure and predict inflammation and treatment response in people with Crohn's disease, ulcerative colitis, or related IBD.
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Autologous tSVF Injection for Refractory Perianal Crohn’s Disease
We’re testing whether injecting a patient’s own mechanically processed tissue stromal vascular fraction around and into fistula tracts can help heal complex perianal Crohn’s disease in people who have not responded to standard therapies.
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Impact of Advanced Crohn's Therapies on Sleep Quality
In adults with Crohn's disease, this study tests whether starting advanced therapies changes sleep quality, using a Fitbit and sleep diaries to track patterns over about six months.
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Wearable data to spot IBD flareups in people with ulcerative colitis or Crohn's disease
This study tests whether heart‑rate variability from participants’ own wearables can help predict IBD flares.
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Individualizing Anti-TNF Therapy in IBD
This study tests whether genetic markers can predict which anti-TNF–naïve IBD patients will respond to their first anti-TNF treatment.
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Cryopreserved autologous SVF plus micrograft for refractory ano-perineal fistulas in Crohn's disease
This trial tests whether thawed stromal vascular fraction (SVF) injected around fistulas can help Crohn’s patients who haven’t responded to prior therapy.
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DB-3Q for Medically Refractory Crohn's Disease (bone marrow MSC–derived extracellular vesicles)
A study tests DB-3Q, a stem cell–derived treatment given to adults with Crohn's disease that hasn’t fully responded to standard therapies.
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LRG levels and IBD activity in European patients
This study will test whether Leucine-rich α2-glycoprotein (LRG) levels reflect disease activity in adults with Crohn’s or ulcerative colitis who are undergoing routine endoscopy in Europe.
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Guselkumab in Crohn's Disease: Optimising Care for Real-World Patients (OPTIM Study A)
This study tests whether guselkumab can help adults with Crohn's disease, including those who have had prior therapies or partial responses, when used in real-world clinical settings.
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TNFi plus low-dose upadacitinib versus TNFi dose intensification for Crohn's disease with suboptimal response
This trial tests whether adding low-dose upadacitinib to a standard TNF blocker helps adults with moderate-to-severe Crohn's disease who haven't responded well to standard-dose infliximab or adalimumab, compared with increasing the TNFi dose.
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Does distending the intestine change how we see Crohn's activity on MRI?
This study tests whether adding an intestinal distensionagent before MRI changes the measurement of Crohn's inflammation in adults with ileal or colonic disease.
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Measuring muscle strength and size in people with inflammatory bowel disease.
This project will test whether ultrasound measurements of selected muscles, together with handgrip strength, can serve as a practical alternative to CT-based muscle measurements for adults with inflammatory bowel disease.
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See if inflammation and scarring in Crohn's can be mapped from resected tissue
This study tests whether detailed ex vivo MRI and tissue measurements on Crohn’s tissue removed during surgery can reveal inflammation versus fibrosis to guide future treatments.
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Epigenetic‑guided versus usual care selection of vedolizumab or ustekinumab for adults with Crohn's disease
This trial tests whether a blood epigenetic test that recommends either vedolizumab or ustekinumab helps adults with active Crohn's disease get better results than usual doctor-guided selection.
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CEDUR — German inflammatory bowel disease registry
This registry collects real-world health and treatment information from adults with Crohn's disease, ulcerative colitis, or indeterminate colitis in Germany to see how care, effectiveness, safety, and costs play out in routine practice.
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See if relatives of Crohn's patients are at risk for developing Crohn's disease
This study tests a risk score using blood biomarkers and lifestyle factors in first-degree relatives of people with Crohn's disease to see if it can predict who will develop the condition.
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Infliximab plus the Crohn's Disease Exclusion Diet for children with Crohn's disease
This will test whether starting a Crohn's Disease Exclusion Diet at the same time as infliximab helps children with moderate-to-severe Crohn's disease get better and stay in remission.
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Reducing ustekinumab dosing for Crohn's disease and ulcerative colitis
This will try giving ustekinumab less often—changing from every 4 or 8 weeks to every 8 or 12 weeks—to see if people with Crohn's disease or ulcerative colitis in deep remission can stay well.
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Mirikizumab for Crohn's Disease: See if it helps heal the bowel walls
This trial tests whether mirikizumab can help patients with Crohn's disease achieve transmural healing.
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Butyricum probiotic to help with Crohn’s disease with stricturing
This study tests whether Clostridium butyricum, taken for two months before a colonoscopy, helps patients with Crohn’s disease and narrowing of the bowel.
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Long-term effectiveness and safety of fecal microbiota transplantation
This project will follow about 4,000 people who have had fecal microbiota transplantation to see if it helps keep them in remission and is safe over 3 months, 1 year, and 5 years for conditions like recurrent C. difficile, IBD, IBS, and chronic constipation.
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Switching to guselkumab for adults with active IBD after ustekinumab
We will try guselkumab (Tremfya) in adults with active IBD whose symptoms didn't improve enough on ustekinumab.
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Laparoscopic right colectomy with extended mesenteric excision and Kono-S anastomosis for Crohn's of the terminal ileum
This will test whether combining laparoscopic right colectomy with extended mesenteric excision and the Kono-S anastomosis helps people with terminal ileum Crohn's by lowering complications and recurrence.
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Reducing ultra-processed foods in children and teens with IBD
This project will test whether short nutrition handouts or handouts plus a brief video can help children and teens with IBD eat fewer ultra-processed foods.
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SMART-IBD app for teens with inflammatory bowel disease
This will test whether the SMART-IBD smartphone app helps adolescents ages 13–17 with IBD take their medicines and manage symptoms better than completing daily diaries alone.
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Artificial-intelligence versus standard review to detect Crohn's disease on video capsule endoscopy
This trial will test whether AI-assisted video capsule endoscopy can find small-bowel Crohn's disease and shorten reading time in adults with suspected Crohn's after a non-diagnostic ileocolonoscopy.
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Using intestinal ultrasound to predict vedolizumab response and transmural healing in early Crohn's disease
This project will test if intestinal ultrasound can predict how well vedolizumab works and show transmural healing in adults with early Crohn's disease.
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HB-adMSCs treatment for Crohn's disease
This trial will try intravenous HB-adMSCs versus placebo to see if they improve symptoms in adults 18–65 with Crohn's disease.
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Switching adults with Crohn's disease from Stelara (ustekinumab) to the biosimilar Uzpruvo
This will see if adults with stable Crohn's disease who switch from Stelara® to the biosimilar Uzpruvo® stay on the biosimilar and remain well over 12 months.
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TIDHI Healing Circuits mental health program for people with IBD
This study tests whether Healing Circuits™ delivered by a social worker or via a self-guided online program helps adults with IBD who have moderate anxiety or depression.
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Tirzepatide to heal small-bowel Crohn's disease after failure of advanced therapies
This trial will test whether tirzepatide can help heal ileal or ileocolonic Crohn's disease in adults whose inflammation has not responded to at least two advanced treatments.
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Using early fecal calprotectin to prevent Crohn's disease return after intestinal surgery
This trial tests whether measuring fecal calprotectin early after bowel surgery and intensifying ustekinumab when levels rise can prevent Crohn's disease from coming back in adults at higher risk.
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Hybrid stricturotomy plus balloon dilation versus stricturotomy alone for short Crohn's strictures
This study will test whether adding balloon dilation to endoscopic stricturotomy helps adults with short Crohn's strictures have fewer symptoms and need fewer repeat procedures or surgery.
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Preventing Crohn's disease recurrence after surgery with EXL01
This study is testing if a new oral medication called EXL01 can help prevent Crohn's disease from coming back after surgery in people who have just had an operation for it.
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Combining Ustekinumab with Semi-Enteral Nutrition for Crohn's Disease Before Surgery
This study is testing if combining a medication called Ustekinumab with a special diet can help adults with Crohn's Disease feel better and get healthier before surgery.
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Adding the Crohn's Disease Exclusion Diet to anti-TNF treatment for Crohn's disease and ulcerative colitis
This will test whether adding the Crohn's Disease Exclusion Diet to anti‑TNF medicines helps adults with active Crohn's disease or ulcerative colitis.
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Exploring the link between diet and immune-related diseases in families
This study is trying to see how the diets of families with members who have conditions like Juvenile Idiopathic Arthritis, Crohn's Disease, or Ulcerative Colitis affect their health and treatment options.
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AI-enhanced MRE to detect bowel fibrosis in Crohn's disease
This project will test whether an AI program applied to magnetic resonance enterography (MRE) scans can accurately identify and characterize bowel wall fibrosis in adults with Crohn's disease who are scheduled for bowel resection.
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Assessing the reliability of intestinal ultrasound in Crohn's disease
This study is testing if a special ultrasound can help doctors check how active Crohn's disease is in patients and see if different doctors agree on the results.
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Optimizing Infliximab Treatment for Inflammatory Bowel Disease
This study is testing a new way to give infliximab to adults with moderate-to-severe inflammatory bowel disease who haven't improved with steroids, to see if personalized dosing can help them feel better.
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Assessing gut microbiome's role in predicting inflammatory bowel disease progression
This study is trying to see if the types of bacteria in the gut can help predict how inflammatory bowel diseases like Crohn's disease and ulcerative colitis will progress in the first year after diagnosis.
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Oral glycan supplementation to modify the gut lining and reduce Crohn's recurrence after ileal surgery
This trial will test whether an oral glycan supplement can change interactions between gut bacteria and the mucosal immune system to prevent Crohn's disease recurrence in adults after ileal or ileocecal resection.
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Investigating the effects of a blueberry-rich diet on colitis
This study is testing if eating a diet high in blueberries can help people with ulcerative colitis and Crohn's disease feel better by improving their gut health and reducing inflammation.
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Comparing water versus polyethylene glycol for bowel preparation before MRE in Crohn's disease
This study will test whether drinking water works as well as polyethylene glycol to distend the small bowel before an MRE for adults with Crohn's disease.
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Fluorescence imaging of a drug for inflammatory bowel disease
This study is testing a special version of a drug for inflammatory bowel disease to see how well it targets the right areas in the body and to find the best dose for patients.
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Observational cohort for early spondyloarthritis in Germany
This study is tracking patients with early spondyloarthritis in Germany to see how the disease progresses and affects their quality of life over time.
Related topics
Quick answers
How many Crohn Disease (CD) clinical trials are recruiting right now?
54, as of November 12, 2026. 1 of them was first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 21 countries. The most sites are in France (11 trials), China (9 trials), United States (7 trials), Italy (6 trials), Netherlands (4 trials). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 2: 4, Phase 4: 4, Phase 1/2: 3. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.