IBS Clinical Trials

5 recruiting

IBS Trials at a Glance

32 actively recruiting trials for ibs are listed on ClinicalTrialsFinder across 6 cities in 14 countries. The largest study group is Not Applicable with 16 trials, with the heaviest enrollment activity in Leuven, Hartford, and Boys Town. Lead sponsors running ibs studies include Ardelyx, Azienda Ospedaliera Specializzata in Gastroenterologia Saverio de Bellis, and KU Leuven.

Browse ibs trials by phase

Treatments under study

About IBS Clinical Trials

Looking for clinical trials for IBS? There are currently 5 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new IBS trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about IBS clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 32 trials

Recruiting
Not Applicable

Sucrase-Isomaltase (SI) Genes and Meal Load

IBS - Irritable Bowel SyndromeSucrase-Isomaltase Deficiency
Region Skane70 enrolled1 locationNCT07309601
Recruiting
Not Applicable

Evaluating the Added Benefit of Osteopathic Care to a Flexi-FODMAP Diet in Fibromyalgia Patients With Irritable Bowel Syndrome

Fibromyalgia (FM)Irritable Bowel Syndrome (IBS)
Universitair Ziekenhuis Brussel96 enrolled1 locationNCT07176078
Recruiting

Gut Microbiome in Patients With Post-infectious Irritable Bowel Syndrome

IBS - Irritable Bowel SyndromePost Infection Syndrome
Fondazione Policlinico Universitario Agostino Gemelli IRCCS315 enrolled1 locationNCT07517029
Recruiting
Not Applicable

Gelsectan® in the Treatment of Patients With Diarrhoea-predominant Irritable Bowel Syndrome

Irritable Bowel Syndrome (IBS)Irritable Bowel Syndrome of Diarrhea Type (IBS-D)
Devintec Sagl330 enrolled12 locationsNCT06681012
Recruiting
Not Applicable

Measuring Nerve Activity in Small Human Intestinal Biopsies in IBS (Irritable Bowel Syndrome)

HealthyIBS
KU Leuven99,999,999 enrolled1 locationNCT01912313
Recruiting
Phase 3

Ebastine Versus Mebeverine in IBS Patients

IBS - Irritable Bowel SyndromeIBS
Guy Boeckxstaens200 enrolled5 locationsNCT05815602
Recruiting
Phase 1Phase 2

Safety and Efficacy of Lyophilized Faecal Microbiota Transplantation Via Capsules in Treatment of Irritable Bowel Syndrome

Irritable Bowel Syndrome (IBS)
University of Rijeka70 enrolled1 locationNCT07481422
Recruiting

ALPCO/Calprotectin CLIA Assay: Expected Values of Calprotectin in Healthy Subjects

IBD (Inflammatory Bowel Disease)Crohn Disease (CD)IBS - Irritable Bowel Syndrome+1 more
American Laboratory Products Company120 enrolled1 locationNCT07089420
Recruiting
Phase 3

Study to Assess Safety and Efficacy of Tenapanor for Treatment of IBS-C in Pediatric Patients 12 to Less Than 18 Years

Irritable Bowel Syndrome With Constipation (IBS-C)
Ardelyx180 enrolled41 locationsNCT05643534
Recruiting
Phase 2

4-Week, Multi-center Dose-Ranging Study for the IBS-C in Pts. 6 to <12 Yrs

Irritable Bowel Syndrome With Constipation (IBS-C)
Ardelyx72 enrolled17 locationsNCT06553547
Recruiting
Early Phase 1

Novel Pilot Study to Treat Symptoms of IBS With Diarrhea Using Combination Therapy of a Low-FODMAP Diet and a Neuromodulator

DiarrheaIBS - Irritable Bowel Syndrome
Mayo Clinic20 enrolled1 locationNCT06684470
Recruiting
Not Applicable

Irritable Bowel Syndrome and Control Volunteers: Diet Challenge

Irritable Bowel Syndrome (IBS)
University of California, Los Angeles72 enrolled1 locationNCT06668922
Recruiting

Diet and Motility in IBS

Irritable Bowel Syndrome (IBS)
Children's Hospital of Philadelphia90 enrolled1 locationNCT07283341
Recruiting

Real-World Study on Fecal Microbiota Transplantation: Long-Term Effectiveness and Safety Statistics

Ulcerative Colitis (UC)Crohn Disease (CD)Autism Spectrum Disorder+6 more
Chen QiYi4,000 enrolled1 locationNCT07261826
Recruiting
Not Applicable

A Randomized Crossover Trial of Bright Light Therapy in Irritable Bowel Syndrome

Irritable Bowel Syndrome (IBS)
Medical University of South Carolina30 enrolled1 locationNCT06676488
Recruiting
Not Applicable

Mechanism of FODMAP Restriction on FGID Patients

Functional DyspepsiaIrritable Bowel Syndrome (IBS)Functional Gastrointestinal Disorders (FGIDs)
Universiti Kebangsaan Malaysia Medical Centre60 enrolled1 locationNCT07000227
Recruiting
Not Applicable

The Beneficial Effects on the Intestinal Function of a Food Supplement Based on an Extract of Green Tea and a Pool of Probiotics in Subjects With Irritable Bowel Syndrome With Predominance of Constipation

IBS, Constipation Predominant
Adamas Biotech S.r.l.64 enrolled1 locationNCT07094035
Recruiting
Not Applicable

Evaluating the Impact of Including Virtual Dietary Education Within an Electronic Irritable Bowel Syndrome Pathway

IBS - Irritable Bowel Syndrome
Nova Scotia Health Authority76 enrolled1 locationNCT05721742
Recruiting
Not Applicable

Exclude or Expose in Irritable Bowel Syndrome: What Works for Whom and How?

Gastrointestinal DiseaseIntestinal DiseasesIrritable Bowel Syndrome (IBS)
University of Melbourne200 enrolled1 locationNCT06940596
Recruiting
Phase 1

Efficacy of Repeated Transcranial Magnetic Stimulation Combined With a Live Probiotic Tablet (Combined Bifidobacterium, Lactobacillus, Enterococcus and Bacillus Cereus Tablets, Live) in Diarrhea-Predominant Irritable Bowel Syndrome (IBS-D)

Intestinal FloraIrritable Bowel SyndromeProbiotic+3 more
The First Affiliated Hospital of Soochow University400 enrolled1 locationNCT06960369