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Crohn's Disease

Tundra lists 110 Crohn's 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

NCT07619547

Longitudinal Immunophenotyping of Patients With Inflammatory Bowel Disease

Background: Inflammatory bowel disease (IBD) is a term used to describe disorders that cause long-term inflammation in the digestive tract. Symptoms include stomach pain, diarrhea, and bleeding. Crohn's disease and ulcerative colitis are the 2 main types of IBD. Researchers want to conduct a natural history study to learn more about whether genetic factors can cause IBD; how immune cells contribute to IBD; and how diet, drugs, and disease affect those cells. Objective: To better understand IBD over time. Eligibility: Adults aged 18 to 85 years with Crohn's disease, ulcerative colitis, or another IBD. Their healthy relatives are also needed. Design: Affected participants will have clinic visits every 6 months for 3 years. Once a year, they will have these procedures: A physical exam with blood and stool samples. Ultrasound of the abdomen. A wand will be rolled over the skin. It uses sound waves to capture images of the intestines. Magnetic resonance imaging (MRI) scan. They will lie on a table that slides into a tube. Magnetic fields will capture images of the intestines. Colonoscopy. A long, flexible tube with a video camera will be inserted into the rectum to view the entire colon. Up to 12 tissue samples may be taken. Upper endoscopy, for those with Crohn's disease. A long, thin tube with a camera will be inserted through the mouth and into the first part of the small intestine. Up to 12 small tissue samples may be taken. Questionnaires. Participants will answer questions about their disease and their diet. Midyear visits will include a physical exam, blood and stool collection, ultrasound, and questionnaires Healthy relatives will have 1 blood draw for genetic tests.

Gender: All

Ages: 18 Years - 85 Years

Updated: 2026-07-15

1 state

Inflammatory Bowel Disease
Crohn's Disease
Ulcerative Colitis
RECRUITING

NCT06430801

A Study to Evaluate the Efficacy and Safety of Tulisokibart (MK-7240) in Participants With Moderate to Severe Crohn's Disease (MK-7240-008)

The purpose of this protocol is to evaluate the efficacy and safety of tulisokibart in participants with moderately to severely active Crohn's disease. Study 1's primary hypotheses are that at least 1 tulisokibart dose level is superior to placebo in the proportion of participants achieving clinical remission per Crohn's Disease Activity Index score (\<150, US/FDA) or per stool frequency and abdominal pain score (EU/EMA) and in the proportion of participants achieving endoscopic response at Week 52 (US/FDA and EU/EMA), and that at least 1 tulisokibart dose level is superior to placebo in the proportion of participants achieving clinical remission per Crohn's Disease Activity Index score (\<150, US/FDA) or per stool frequency and abdominal pain score (EU/EMA) and in the proportion of participants achieving endoscopic response at Week 12 (US/FDA and EU/EMA). Study 2's primary hypothesis is that at least 1 tulisokibart dose level is superior to placebo in the proportion of participants achieving clinical remission per Crohn's Disease Activity Index score (\<150, US/FDA) or stool frequency and abdominal pain score (EU/EMA) and in the proportion of participants achieving endoscopic response at Week 12 (US/FDA and EU/EMA).

Gender: All

Ages: 16 Years - 80 Years

Updated: 2026-07-13

228 states

Crohn's Disease
RECRUITING

NCT07545317

Real-World Study of IL-23 Inhibitors in Active Crohn's Disease

The goal of this observational study is to learn about the effectiveness and safety of IL-23 inhibitors in adults with active Crohn's disease in real-world clinical practice. The main questions it aims to answer are: * What proportion of participants achieve clinical remission at Week 12 after starting treatment with an IL-23 inhibitor? * What are the clinical, endoscopic, biomarker, imaging, and safety outcomes during induction and maintenance treatment? This is not a head-to-head randomized study. Treatments are selected by treating physicians as part of routine clinical care. For a nested comparative analysis, bio-naive participants treated with IL-23 inhibitors will be compared with a concurrent prospective cohort of bio-naive participants treated with TNF inhibitors to evaluate comparative effectiveness and safety. Participants will: * Receive treatment chosen by their treating physicians as part of routine clinical care, including IL-23 inhibitors or TNF inhibitors * Attend study follow-up visits during induction and maintenance, including assessments at baseline, Week 12 and Week 52 * Undergo routine clinical evaluations, which may include symptom assessment, laboratory tests, endoscopy, and imaging, as available * Be monitored for adverse events and treatment changes during the study * Optionally provide blood, stool, and other available samples for exploratory biomarker, microbiome, metabolomic, and other multi-omics analyses related to treatment response

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-07-09

1 state

Crohn's Disease
RECRUITING

NCT06045754

A Study of Vedolizumab Intravenous (IV) and Adalimumab or Vedolizumab and Ustekinumab in Adults With Crohn's Disease

The main aim of this study is to learn about the effect of treatment with vedolizumab IV (vedolizumab) together with adalimumab or vedolizumab (VDZ) together with ustekinumab (UST) in adults with moderate to severe Crohn's Disease, and the effect of treatment with vedolizumab alone, after the dual targeted treatment. The study is conducted in two parts. In Part A, participants will receive the dual targeted treatment (vedolizumab together with either adalimumab or ustekinumab). In part B, participants will receive vedolizumab only. Part B will include participants who responded to the treatment in Part A. Each participant will be followed up for at least 26 weeks after the last dose of treatment.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-07-08

24 states

Crohn's Disease
RECRUITING

NCT03167437

An Open-Label, Proof of Consent Study of Vorinostat for the Treatment of Mdoerate-to-Severe Crohn s Disease and Maintenance Therapy With Ustekinumab

Background: Crohn s disease (CD) is an inflammatory bowel disease. It causes inflammation of the gut. Symptoms may include diarrhea, abdominal pain, fatigue, weight loss and malnutrition. CD has no cure, but symptoms can sometimes be controlled with medicine. Researchers want to see if it is safe to treat CD with the medicine vorinostat. It is thought that vorinostat may reduce the inflammation process of CD. This may then help to relieve symptoms of CD. Participants who respond to Vorinostat will be invited to an extension phase of treatment with Vorinostat and possibly a maintenance treatment using Ustekinumab. Objectives: To see if vorinostat is safe for people with moderate-to-severe CD. To see if it is safe for people with moderate-to-sever CD to receive maintenance therapy using Ustekinumab after successful treatment of Vorinostat. Eligibility: Adults 18-65 with moderate-to-severe CD that medicine is not controlling. Design: Phase I is screening. It may last 120 days. Participants will have: Physical exam Medical history Tests of blood, urine, and stool samples Heart test Questionnaires Tuberculosis skin test They may have a colonoscopy and lymphapheresis collection. These will be explained in a separate consent. They will keep a diary of symptoms. Phase II is treatment using Vorinostat. It will take 12-13 weeks. Participants will take the study drug by mouth twice daily for 12 weeks. They will get a weekly phone call to talk about how the drug makes them feel. They will have blood taken regularly. Every 4 weeks, they will have a check-up that will repeat some screening tests. Phase III extension treatment of Vorinostat for an additional 6 months for those who respond to vorinostat and it is safe for them to continue treatment. Participants will continue to receive weekly calls to talk about how the drug makes them feel. They will have blood taken regularly. Every 3 months, they will have a check-up that will repeat some screening tests. Phase IV: is maintenance therapy for 2 years with Ustekinumab. Participants will receive a one time loading dose of ustekinumab, and then will receive the approved maintenance dose once every 8 weeks, at which time they will return to the NIH Clinical Center for evaluation. The participant will get a phone call 3 days after each dose and again 2 weeks later to see how the drug makes them feel. After two years of receiving treatment with ustekinumab the participant will have an end of study visit, where some of the screening tests, including a colonoscopy, will be repeated.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-07-08

1 state

Crohn's Disease
RECRUITING

NCT06226883

A Phase 2 Study to Evaluate MORF-057 in Adults With Moderately to Severely Active Crohn's Disease

This is a Phase 2, randomized, double-blind, placebo-controlled, multicenter study to evaluate the efficacy and safety of 3 active dose regimens of MORF-057 in adult study participants with moderately to severely active Crohn's disease (CD).

Gender: All

Ages: 18 Years - 85 Years

Updated: 2026-07-07

13 states

Inflammatory Bowel Diseases
Crohn's Disease
COMPLETED

NCT01155362

PDA001 for the Treatment of Adults With Moderate-to-Severe Crohn's Disease

This Phase 2a study evaluated the efficacy, safety, and tolerability of intravenous human placenta-derived cells (PDA001) compared with placebo in adults with moderate-to-severe Crohn's disease. Three PDA001 dose levels were evaluated.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-07-07

10 states

Crohn's Disease
RECRUITING

NCT06937099

Mirikizumab and Tirzepatide Administered in Adult Participants With Moderately to Severely Active Crohn's Disease and Obesity or Overweight

The main purpose of this study is to evaluate the efficacy and safety of mirikizumab and placebo compared with mirikizumab and concomitantly administered tirzepatide in adult participants with moderately to severely active CD and obesity, or overweight. The maximum duration of this study is up to 61 weeks.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-07-07

22 states

Crohn's Disease
Obesity or Overweight
ACTIVE NOT RECRUITING

NCT00606346

A Multicenter, Prospective, Long-term, Observational Registry of Pediatric Patients With Inflammatory Bowel Disease

The purpose of this study is to evaluate the long-term safety and clinical status of pediatric patients with Inflammatory Bowel Disease (IBD). Particular attention will be directed to recording safety outcomes reported in association with infliximab and other prescribed IBD therapies. In addition, information on disease status and quality of life will be collected.

Gender: All

Ages: 1 Month - 17 Years

Updated: 2026-07-06

33 states

Crohn's Disease
Ulcerative Colitis
Indeterminate Colitis
+1
RECRUITING

NCT07242248

A Study to Observe Real-world Evidence of Guselkumab Treatment in Participants With Ulcerative Colitis and Crohn's Disease in the United Kingdom (UK)

The purpose of this study is to evaluate the clinical effectiveness (how well the treatment works) of Guselkumab, by lines of treatment and subpopulations, and what are the outcomes of treatment (clinical outcomes) in adult participants with moderately to severely active Ulcerative Colitis (UC) or Crohn's Disease (CD) under real-world settings. CD and UC are the main type of Inflammatory bowel disease, a group of inflammatory conditions of the colon and small intestine.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-06

Inflammatory Bowel Disease
Colitis, Ulcerative
Crohn's Disease
RECRUITING

NCT05923073

A Study of Guselkumab in Pediatric Participants With Moderately to Severely Active Crohn's Disease

The purpose of this study is to evaluate the clinical and endoscopic efficacy of guselkumab in pediatric participants with Crohn's Disease (CD) at the end of maintenance therapy (Week 52) among participants who were in clinical response to guselkumab at Week 12.

Gender: All

Ages: 2 Years - 17 Years

Updated: 2026-07-06

13 states

Crohn's Disease
RECRUITING

NCT07102368

A Study to Generate Real-world Evidence of Guselkumab Effectiveness in Inflammatory Bowel Disease in Germany

The purpose of this study is to characterize participants with Crohn's Disease (CD) and Ulcerative Colitis (UC) treated with Guselkumab in a real-world setting, and to assess the clinical effectiveness (how well the treatment works) in the overall population and in different participant subgroups. Furthermore patient-reported outcomes like fatigue, health-related quality of life (HRQoL), sexuality, work productivity and activity as well as treatment satisfaction will be assessed.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-06

Inflammatory Bowel Disease
Colitis, Ulcerative
Crohn's Disease
RECRUITING

NCT06233461

A Study on the Safety of TAK-279 and Whether it Can Reduce Inflammation in the Bowel of Participants With Moderately to Severely Active Crohn's Disease

Crohn's disease (CD) is a long-lasting condition causing inflammation that can affect any part of the gut. The purpose of this study is to evaluate the efficacy and safety of TAK-279 versus placebo in participants with moderately to severely active Crohn's disease (CD). The main aim of this study is to learn if the 3 different doses of TAK-279 reduce bowel inflammation and ulcers in the bowel compared to the placebo after 12 weeks of treatment. Another aim is to compare any medical problems that participants have when they take TAK-279 or placebo and how well the participants tolerate medical problems. An endoscopy will be used to check the bowel for inflammation. The participants will be treated with TAK-279 for 52 weeks (1 year). During the study, participants will visit their study clinic 15 times.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-07-06

64 states

Crohn's Disease
COMPLETED

NCT04002180

Specified Drug-Use Survey on Vedolizumab for IV Infusion 300 mg [Crohn's Disease]

The purpose of this survey is to evaluate the long-term safety and effectiveness of vedolizumab for intravenous (IV) infusion 300 milligrams (mg) in Crohn's disease (CD) patients in the routine clinical setting.

Gender: All

Updated: 2026-07-06

Crohn's Disease
ACTIVE NOT RECRUITING

NCT05242471

A Study of Combination Therapy With Guselkumab and Golimumab in Participants With Moderately to Severely Active Crohn's Disease

The purpose of this study is to evaluate the efficacy of JNJ-78934804 at Week 48 compared to guselkumab and golimumab.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-07-06

40 states

Crohn's Disease
ACTIVE NOT RECRUITING

NCT03466411

A Study of the Efficacy and Safety of Guselkumab in Participants With Moderately to Severely Active Crohn's Disease

The purpose of this study is to evaluate the clinical efficacy (GALAXI 1), clinical and endoscopic efficacy (GALAXI 2 and GALAXI 3) and safety of guselkumab in participants with Crohn's disease.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-06

31 states

Crohn's Disease
ACTIVE NOT RECRUITING

NCT06408935

Transmural Healing and Disease-Modifying Effect of Guselkumab in Crohn's Disease Patients

The purpose of this study is to evaluate the efficacy of guselkumab in healing of all layers of the digestive tract (transmural healing) with the help of a score called Magnetic Resonance Index of Activity (MaRIA) based on a scan at Week 48.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-06

7 states

Crohn's Disease
NOT YET RECRUITING

NCT07403968

A Study of Zasocitinib (TAK-279) in Adults With Active Crohn's Disease

Crohn's disease (CD) is a serious, long-term condition that can cause swelling (inflammation) and painful ulcers anywhere in the gut. This study will investigate whether zasocitinib can improve CD biology at the cellular and molecular level in adults. The main aims of this study are to better understand zasocitinib's mechanism of action in CD and evaluate how safe this treatment is. The participants will be treated with zasocitinib for 3 months (12 weeks) and will need to undergo a test where a doctor uses a thin, flexible tube with a tiny camera to look inside the large bowel (colon) and the end of the small bowel (ileum); this test is called ileocolonoscopy. During the study, participants will visit the study clinic several times.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-07-01

Crohn's Disease
RECRUITING

NCT07184931

An Induction Study to Investigate the Efficacy and Safety of Duvakitug in Participants With Moderately to Severely Active Crohn's Disease

This is a multinational, multicenter, randomized, double-blind, placebo-controlled, Phase 3 induction study, comprised of 3 sub-studies, to evaluate the efficacy and safety of duvakitug in participants with moderately to severely active CD. Study details include: The study duration may be up to 35 weeks with: * Up to 5-week Screening Period. * 12-week Sub-Study 1 (Single Arm Open-Label Feeder Induction) or Sub-Study 2 (Pivotal Induction). * 12-week Sub-Study 3 (Extended Induction for non-responders). * 6 weeks (45 days) follow-up period for participants who do not enroll into the Pivotal Maintenance Study (EFC18327). The treatment duration will be up to 12 weeks in each sub-study. The number of scheduled study visits for participants who continue to the Pivotal Maintenance Study (EFC18327) will be up to 8 (Sub-Study 1 and Sub-Study 2) and up to 15 for participants who enroll in Sub-Study 3.

Gender: All

Ages: 16 Years - 80 Years

Updated: 2026-07-01

47 states

Crohn's Disease
TERMINATED

NCT04173273

A Study Evaluating the Efficacy and Safety of Oral Etrasimod in the Treatment of Adult Participants With Moderately to Severely Active Crohn's Disease

This is a Phase 2/3 study that comprises 5 substudies designed to evaluate the efficacy, safety, and tolerability of oral etrasimod as therapy in adult participants with moderately to severely active Crohn's disease (CD) who are refractory or intolerant to at least 1 of the current therapies for CD (ie, corticosteroids, immunosuppressants, or biologics). The overall duration of this study is up to 282 weeks, inclusive of the Screening Period, Treatment Period of up to 274 weeks (Induction, Extension or Maintenance, and Long-term Extension Periods), and the 4-Week Follow-Up Period for safety assessment.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-07-01

63 states

Crohn's Disease
NOT YET RECRUITING

NCT07671313

Online Pain Education for Crohn's Disease and Ulcerative Colitis

Through a pilot randomized controlled trial (RCT), we aim to test the feasibility and preliminary impact of two online pain educations programs among adult patients with inflammatory bowel disease (IBD) who experience chronic pain. Each online program can be accessed on the patient's personal device, and will take about 2 hours to complete. Clinical outcomes (pain intensity, pain interference, quality of life) will be assessed via online surveys at baseline and then weekly for 8-weeks post-treatment.

Gender: All

Ages: 18 Years - Any

Updated: 2026-06-26

1 state

Crohn's Disease
Ulcerative Colitis (UC)
Inflammatory Bowel Disease (Crohn's Disease; Ulcerative Colitis)
RECRUITING

NCT06581328

A Study of Vedolizumab in Adults With Ulcerative Colitis or Crohn's Disease in the Community Setting

Ulcerative Colitis (UC) and Crohn's Disease (CD) are long-term conditions in the gut that can cause diarrhea, swelling (inflammation), bleeding from the anus, and belly pain. The main aim of this study is to check for how many participants with UC and CD signs and symptoms disappear after 3.5 months (14 weeks) of treatment with Vedolizumab (this is called remission). Participants will be treated with Vedolizumab for approximately 1 year (50 weeks). During the first 1.5 months (6 weeks), participants will receive Vedolizumab as an infusion in the vein (called intravenously). After this, participants will receive Vedolizumab as an injection under the skin (called subcutaneously) for the rest of the treatment. Participants for whom the treatment does not seem to work well after 3.5 months (14 weeks) will stop treatment with Vedolizumab and can change to another treatment and also there will be additional required visits at 6 months (26 weeks) and at 1 year (52 weeks). All participants will be checked again 4.5 months (18 weeks) after their last treatment with Vedolizumab. During the study, participants will visit their study clinic several times.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-06-26

32 states

Ulcerative Colitis
Crohn's Disease
RECRUITING

NCT06548542

Study of Targeted Therapies for the Treatment of Adult Participants With Moderate to Severe Crohn's Disease

Crohn's disease (CD) is a long-lasting disease that causes severe inflammation (redness, swelling), in the digestive tract, most frequently affecting the bowels. It can cause many different symptoms including belly pain, diarrhea, tiredness, and weight loss. Treatments are available but do not work the same for all patients or may stop working over time. This study will evaluate the effectiveness and adverse events of targeted therapies (TaTs) for adult participants with moderate to severe CD. The medicines assessed in this study are risankizumab, trosunilimab, lutikizumab, and ABBV-8736. When participants join the study, they will be randomized into available study treatment groups. Adult participants with CD will be enrolled. Around 540 participants will be enrolled in the study at approximately 300 sites worldwide. Risankizumab and trosunilimab are given as an injection under the skin or as an infusion into the vein. Lutikizumab is given as an injection under the skin. ABBV-8736 is given as an infusion into the vein. There may be higher treatment burden for participants in this trial compared to their standard of care treatment without participating in this study. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, endoscopies, checking for side effects and completing questionnaires and a daily diary.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-06-26

120 states

Crohn's Disease
RECRUITING

NCT07073079

A Study to Assess the Effectiveness of Second-Line Therapy of Upadacitinib and Risankizumab in Adult Participants With Crohn's Disease in a Real-World Setting

Crohn's disease (CD) is an incurable chronic inflammatory disorder of the gastrointestinal tract. This study will evaluate the second line effectiveness of upadacitinib and risankizumab in Crohn's Disease (CD) in a real-world setting. Upadacitinib and risankizumab are approved drugs for treating CD. Approximately 250 participants who are prescribed upadacitinib or risankizumab by their physician in accordance with local label will be enrolled in 25 sites across Italy. Participants will receive upadacitinib or risankizumab as prescribed by their physician according to their routine clinical practice and local label. Participants will be followed for up to 18 months. No additional burden for participants in this trial is expected.

Gender: All

Ages: 18 Years - Any

Updated: 2026-06-24

11 states

Crohn's Disease