| Not Yet Recruiting | Mindfulness Training Versus Low (FODMAP) Fermentable Oligosaccharides, Disaccharides, Monosaccharides and Poly NCT05630703 | Wake Forest University Health Sciences | N/A |
| Not Yet Recruiting | Synbiotic Supplement With Botanical Extracts for Gut Microbiota Balance in Irritable Bowel Syndrome NCT07475299 | Iuliu Hatieganu University of Medicine and Pharmacy | N/A |
| Recruiting | Safety and Efficacy of Lyophilized Faecal Microbiota Transplantation Via Capsules in Treatment of Irritable Bo NCT07481422 | University of Rijeka | Phase 1 / Phase 2 |
| Not Yet Recruiting | New Microbiota-endocrine Axis in Fructose Malabsorption-caused Visceral Hypersensitivity in Irritable Bowel Sy NCT07337707 | University Hospital, Rouen | N/A |
| Recruiting | Evaluating the Added Benefit of Osteopathic Care to a Flexi-FODMAP Diet in Fibromyalgia Patients With Irritabl NCT07176078 | Universitair Ziekenhuis Brussel | N/A |
| Not Yet Recruiting | Feasibility Study of a Guided Imagery Therapy Mobile Application for Functional Abdominal Pain Disorders in Ch NCT07222943 | Baylor College of Medicine | N/A |
| Recruiting | Real-World Study on Fecal Microbiota Transplantation: Long-Term Effectiveness and Safety Statistics NCT07261826 | Chen QiYi | — |
| Not Yet Recruiting | Probiotic Mixture (L. Rhamnosus GG and L. Plantarum 299V) In Pediatric Irritable Bowel Syndrome NCT07125625 | University of Bari | N/A |
| Not Yet Recruiting | A Flexible Clinical Trial to Test if Freeze-dried Fecal Microbiota Therapy Helps Treat Diarrhea-predominant Ir NCT06948461 | PharmaPlanter Technologies Inc | Phase 2 |
| Recruiting | Mechanism of FODMAP Restriction on FGID Patients NCT07000227 | Universiti Kebangsaan Malaysia Medical Centre | N/A |
| Completed | Efficacy of Guided Imagery Therapy Mobile Application for Functional Abdominal Pain NCT06653647 | Baylor College of Medicine | N/A |
| Not Yet Recruiting | Deep Learning-Based Confocal Laser Microendoscopy Feature Atlas Construction and Its Application in Intelligen NCT07051226 | Daping Hospital and the Research Institute of Surgery of the Third Military Medical University | — |
| Completed | A Randomized Crossover Trial of Bright Light Therapy in Irritable Bowel Syndrome NCT06676488 | Medical University of South Carolina | N/A |
| Not Yet Recruiting | Diagnostic Study for Differentiating Functional From Organic Diseases in Patients With Lower GIT Symptoms NCT07016529 | Sohag University | — |
| Recruiting | Exclude or Expose in Irritable Bowel Syndrome: What Works for Whom and How? NCT06940596 | University of Melbourne | N/A |
| Enrolling By Invitation | Enabling Microbiomics- Driven Personalized Nutrition NCT06657001 | Mayo Clinic | — |
| Not Yet Recruiting | Effect of a Low FODMAP Diet in IBS and Functional Constipation with Bloating: a Randomized Double-Blind Trial NCT06871748 | Mahidol University | N/A |
| Not Yet Recruiting | Investigating the Gut Microbiome and Symptomology in IBS NCT06708533 | Nottingham Trent University | N/A |
| Recruiting | Evaluate the Effect of Synbiotics in Irritable Bowel Syndrome NCT06647043 | Universiti Sains Malaysia | N/A |
| Not Yet Recruiting | Pentabiocel in Pediatric IBS NCT06720805 | University of Roma La Sapienza | N/A |
| Recruiting | Irritable Bowel Syndrome and Control Volunteers: Diet Challenge NCT06668922 | University of California, Los Angeles | N/A |
| Recruiting | Prospective Observational Study of Naturopathic Approaches to IBS NCT06721624 | National University of Natural Medicine | — |
| Recruiting | Gelsectan® in the Treatment of Patients With Diarrhoea-predominant Irritable Bowel Syndrome NCT06681012 | Devintec Sagl | N/A |
| Not Yet Recruiting | Effectiveness of Thyme in the Management of Clinical Symptoms in Patients with Irritable Bowel Syndrome NCT06609746 | Shahid Beheshti University of Medical Sciences | N/A |
| Completed | Curcumin, Vitamin D and Green Tea in IBS-D NCT07052890 | Dr Anthony Hobson | N/A |
| Recruiting | GWAS to Identify Predictive Genetic Factors for the Success of Dietary Intervention in the Treatment of IBS Sy NCT06912828 | Attikon Hospital | — |
| Active Not Recruiting | Genetic Carbohydrate Maldigestion as a Model to Study Food Hypersensitivity NCT05795049 | Nottingham University Hospitals NHS Trust | — |
| Recruiting | VICO-trial: Video Consultations in the Follow-up of Children With Functional Abdominal Pain Disorders NCT06665867 | Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) | N/A |
| Completed | Exercise and Vagus Nerve Stimulation in IBS NCT06769516 | Bahçeşehir University | N/A |
| Completed | Enteric-Coated Peppermint Oil Versus Standard Antispasmodic in SLC6A4 (5-HTTLPR) Carriers With Irritable Bowel NCT06914921 | S.LAB (SOLOWAYS) | N/A |
| Terminated | Feasibility of an Online Cognitive Behavioural Therapy Application (Mahana IBS™, Mahana Therapeutics) in the M NCT07008404 | Nottingham University Hospitals NHS Trust | N/A |
| Unknown | Efficacy and Safety of Dietary Supplementation of Diamine Oxidase to Improve Symptoms in Patients With IBS NCT06139744 | Nanjing First Hospital, Nanjing Medical University | Phase 4 |
| Recruiting | Diet and Motility in IBS NCT07283341 | Children's Hospital of Philadelphia | — |
| Completed | Exercise and Irritable Bowel Syndrome (IBS) NCT05453084 | Azienda Ospedaliera Specializzata in Gastroenterologia Saverio de Bellis | N/A |
| Enrolling By Invitation | Study on Treatment Mechanisms and Efficacy Prediction of Individualized Transcranial Magnetic Stimulation in A NCT07345377 | The Affiliated Hospital of Hangzhou Normal University | N/A |
| Enrolling By Invitation | Quest to Analyze One Thousand Humans Meditating NCT06583395 | Tobias Moeller-Bertram | — |
| Completed | The Effect of Inulin in Irritable Bowel Syndrome NCT06610188 | Mardin Artuklu University | N/A |
| Unknown | Butyrate in Children With IBS: Double Blind Placebo Controlled Randomized Clinical Trial NCT04566679 | University of Bari | N/A |
| Completed | Evaluate the Safety of Linaclotide in IBS-C Patients in China NCT04462900 | AstraZeneca | — |
| Suspended | A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Disease NCT04031469 | ProgenaBiome | — |
| Completed | Effect of Different Dietary Therapies on Intestinal Barrier Integrity in Patients With Irritable Bowel Syndrom NCT06421922 | Gulhane Training and Research Hospital | N/A |
| Completed | Effect of HMOs as Nutritional Support for Normal Bowel Movements in IBS Patients NCT03550742 | Glycom, Inc. | N/A |
| Completed | Mode of Action of Butyrate in the Human Colon NCT05249023 | Örebro University, Sweden | N/A |
| Completed | Irritable Bowel Syndrome Survey in Gastroenterological Adult Outpatients in China NCT02955316 | AstraZeneca | — |
| Completed | qQ-lab Daily-IBS for Irritable Bowel Syndrome NCT03964103 | IlDong Pharmaceutical Co Ltd | N/A |
| Completed | Effects of HMOs on Faecal Microbiota, Gastrointestinal Symptoms, Mucosal Immunity and Barrier Function in IBS NCT02875847 | Glycom A/S | Phase 2 |
| Withdrawn | Genetic Determinism of Epithelial Barrier Defects in Irritable Bowel Syndrome NCT02841878 | Centre Hospitalier Universitaire de Nice | N/A |
| Completed | Confocal Endomicroscopy Utility (p-CLE) in Irritable Bowel Syndrome NCT02651532 | Instituto Ecuatoriano de Enfermedades Digestivas | — |
| Recruiting | Indiana University Gastrointestinal Motility Diagnosis Registry NCT04506593 | Indiana University | — |
| Completed | Microbiome Fructan Metabolism and Symptoms in Childhood IBS NCT02842281 | Baylor College of Medicine | N/A |
| Completed | Cognitive Behavior Therapy (CBT) for Children With Functional Gastrointestinal Disorders NCT02113605 | Karolinska Institutet | N/A |
| Withdrawn | Collaborative Cognitive Behavioral Therapy / Hypnotherapy for Treatment of Pediatric Functional Gastrointestin NCT01966341 | Seton Healthcare Family | N/A |
| Completed | Peripheral Histamine 1 Receptor Blockade in IBS: Multicenter Trial NCT01908465 | KU Leuven | Phase 4 |
| Completed | Fecal Microbiota Transplantation in Patients With Irritable Bowel Syndrome NCT02092402 | Örebro University, Sweden | N/A |
| Terminated | Study to Evaluate the Effects of ONO-2952 on Pain Perception Produced by Rectal Distention in Female Subjects NCT01887002 | Ono Pharma USA Inc | Phase 2 |
| Completed | A Phase 2, Multi-center Study to Evaluate the Efficacy and Safety of ONO-2952 in Female Subjects With Diarrhea NCT01844180 | Ono Pharma USA Inc | Phase 2 |
| Completed | The Diagnostic Predictability of Food Allergy Testing NCT01791621 | The Canadian College of Naturopathic Medicine | N/A |
| Completed | Physical Activity in IBS - a Long Term Follow up NCT01774695 | Sahlgrenska University Hospital | N/A |
| Completed | Microbe-Gut Interaction in Microscopic Colitis and Post-Infectious Irritable Bowel Syndrome (IBS) NCT01787253 | Örebro University, Sweden | — |
| Completed | Abdominal Symptom Phenotype Study in Children NCT01204515 | Baylor College of Medicine | — |
| Completed | Peer Mentorship: An Intervention To Promote Effective Pain Self-Management In Adolescents NCT01118988 | University of California, Los Angeles | N/A |
| Completed | Tolerability and Effectiveness of Progut in Treatment of Irritable Bowel Syndrome NCT00904696 | National University Hospital, Singapore | — |
| Completed | Feasibility and Reproducibility of Barostat Assessments of Colorectal Sensation During Colorectal Distention a NCT00584298 | Novartis | Phase 1 |
| Completed | Study On The Effect Of GW876008 On Cerebral Blood Flow In Irritable Bowel Syndrome (IBS) Patients And Healthy NCT00376896 | GlaxoSmithKline | Phase 1 |
| Completed | Randomized Placebo Controlled Efficacy And Safety Study Investigating GW876008 In Patients With Irritable Bowe NCT00421707 | GlaxoSmithKline | Phase 2 |
| Completed | A Study To Investigate The Effect Of Solabegron (GW427353) On Gastrointestinal Transit In Healthy Volunteers NCT00401479 | GlaxoSmithKline | Phase 1 |
| Completed | A Study To Investigate GW427353 In Subjects With Irritable Bowel Syndrome (IBS) NCT00394186 | GlaxoSmithKline | Phase 2 |
| Terminated | Pilot Study to Assess the Effects of AV608 on Irritable Bowel Syndrome NCT00316550 | Avera Pharmaceuticals | Phase 1 |
| Completed | Study to Determine the Effectiveness of the Probiotic E. Coli Strain M17 in Treating Irritable Bowel Syndrome NCT00194922 | Weill Medical College of Cornell University | Phase 2 |
| Completed | Study In Women With Severe Diarrhea-Predominant Irritable Bowel Syndrome Having Failed Conventional Therapy NCT00067457 | GlaxoSmithKline | Phase 3 |
| Completed | Study Of Women With Severe Diarrhea-Predominant Irritable Bowel Syndrome Having Failed Conventional Therapy NCT00067561 | GlaxoSmithKline | Phase 3 |