| Not Yet Recruiting | Psilocybin-Assisted Psychotherapy in Treating Irritable Bowel Syndrome (IBS) NCT06760533 | NYU Langone Health | EARLY_Phase 1 |
| Recruiting | Gut Microbiome in Patients With Post-infectious Irritable Bowel Syndrome NCT07517029 | Fondazione Policlinico Universitario Agostino Gemelli IRCCS | — |
| Enrolling By Invitation | Lactose Intolerance and Intestinal Permability NCT07424898 | Bezmialem Vakif University | — |
| Not Yet Recruiting | Sucrase-Isomaltase (SI) Genes and Meal Load NCT07309601 | Region Skane | N/A |
| Not Yet Recruiting | Efficacy of Rifaximin With NAC in IBS-D NCT06727422 | Mark Pimentel, MD | Phase 2 |
| Not Yet Recruiting | Use of A Complex Gut Bacterial Consortium (MITI 001) for the Treatment of Irritable Bowel Syndrome With Diarrh NCT07238790 | Stanford University | EARLY_Phase 1 |
| Recruiting | Saccharomyces Boulardii CNCM I-745 in Irritable Bowel Syndrome NCT07168434 | Biocodex | Phase 3 |
| Not Yet Recruiting | Transcranial Magnetic Stimulation and Pharmacologic/Probiotic Interventions for Diarrhea-Predominant IBS NCT07172139 | Rui Li | N/A |
| Recruiting | ALPCO/Calprotectin CLIA Assay: Expected Values of Calprotectin in Healthy Subjects NCT07089420 | American Laboratory Products Company | — |
| Enrolling By Invitation | Specimen and Data Collection for a Novel Biomarker Combination for the Differential Diagnosis of Inflammatory NCT07471490 | DiaSorin Inc. | — |
| Active Not Recruiting | Relaxation Music for Chronic Pain NCT06993272 | University of California, Irvine | N/A |
| Recruiting | Study Evaluating the Efficacy of Different Mixes of HMO-2FL + Humiome® Post LB on IBS Gastrointestinal Symptom NCT06889779 | dsm-firmenich Switzerland AG | N/A |
| Completed | RCT of VR Therapy for IBS NCT06687616 | Christopher Almario | N/A |
| Recruiting | Novel Pilot Study to Treat Symptoms of IBS With Diarrhea Using Combination Therapy of a Low-FODMAP Diet and a NCT06684470 | Mayo Clinic | EARLY_Phase 1 |
| Withdrawn | Efficacy of Virtual Reality (VR) for Irritable Bowel Syndrome NCT06257472 | Anthony Lembo | N/A |
| Recruiting | Lf-rTMS Attenuates Visceral Pain in Irritable Bowel Syndrome With Diarrhea NCT06757491 | The First Affiliated Hospital of Soochow University | N/A |
| Not Yet Recruiting | Efficacy and Safety of Oral Administration of Postibiotic by FOS Fermentation From Lactobacillus Paracasei in NCT06423001 | Istituto Clinico Humanitas | N/A |
| Completed | Effect of Tenapanor on the Metagenomics and Metabolomics of Patients With Irritable Bowel Syndrome With Consti NCT05995899 | Kyle Staller, MD, MPH | Phase 4 |
| Not Yet Recruiting | Microbiome Sampling in GI Disease With a Focus on Small Intestinal Microbial Assessment NCT06066866 | Stanford University | — |
| Active Not Recruiting | Digital Treatment of Irritable Bowel Syndrome (IBS) NCT06117865 | Haukeland University Hospital | N/A |
| Recruiting | Capsule Microbiota Sampling in IBS/Functional Gastrointestinal Disease NCT06215222 | Stanford University | — |
| Completed | Low FODMAP Diet and Gluten Free Diet in IBS NCT06923696 | Nuh Naci Yazgan University | N/A |
| Completed | A Multi-Strain Probiotic Reduces the Frequency of Diarrhea in IBS-D Patients NCT05900752 | Shenzhen Precision Health Food Technology Co. Ltd., | N/A |
| Recruiting | Evaluating the Impact of Including Virtual Dietary Education Within an Electronic Irritable Bowel Syndrome Pat NCT05721742 | Nova Scotia Health Authority | N/A |
| Unknown | Effects of a Combination of Polyphenol-rich Extracts, Prebiotics, and Hydrolyzed Fiber on the Quality of Life NCT05990764 | AronPharma Sp. z o. o. | N/A |
| Recruiting | Ebastine Versus Mebeverine in IBS Patients NCT05815602 | Guy Boeckxstaens | Phase 3 |
| Terminated | Human Milk Oligosaccharides (HMOs) for Irritable Bowel Syndrome (IBS) NCT05205785 | dsm-firmenich Switzerland AG | N/A |
| Recruiting | The Use of Directed Probiotics in ME/CFS: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome NCT06211062 | Nova Southeastern University | Phase 2 |
| Completed | Pre-analytical Influences on a Blood Test Study NCT05434949 | The Royal Wolverhampton Hospitals NHS Trust | — |
| Completed | Split-dose Versus Single-dose Bowel Preparation for Colonoscopy NCT06426745 | Egymedicalpedia | N/A |
| Completed | Online, Gut-directed Hypnotherapy for Patients With Irritable Bowel Syndrome (IBS) NCT06297785 | Sahlgrenska University Hospital | N/A |
| Completed | Clinical Trial to Evaluate the Effect of a Probiotic Mixture on Signs and Symptoms of Irritable Bowel Syndrome NCT05565612 | Laboratorio Industrial de Herbodietetica Aplicada S.L | N/A |
| Unknown | Efficacy and Safety of a Probiotic Formulation in Adults With Irritable Bowel Syndrome With Diarrhea (IBS-D) NCT05509725 | Lallemand Health Solutions | Phase 4 |
| Unknown | Assessment of Psychological Symptoms and Health Related Quality of Life in Patients With Irritable Bowel Syndr NCT05480059 | Assiut University | — |
| Completed | Study to Evaluate the Efficacy of Poppi Apple Cider Vinegar Prebiotic Soda to Improve Gut Health In Participan NCT05418439 | Drink Poppi | N/A |
| Unknown | Changes in Microbiota and Quality of Life in IBS NCT05266287 | National University of Natural Medicine | N/A |
| Enrolling By Invitation | Comparison Between Low FODMAP and SSRD in IBS NCT05192603 | Region Skane | N/A |
| Completed | A Trial to Evaluate the Effects of Bifidobacterium Longum NCC3001 on Intestinal and Psychological Symptoms in NCT05054309 | Société des Produits Nestlé (SPN) | N/A |
| Recruiting | Microbiota, Metabolome and Nutrition: an 'Artificially Intelligent' Way to Personalized Nutrition NCT06420843 | Istituto Clinico Humanitas | N/A |
| Completed | Sex Differences in Effectiveness of CBT on IBS Project 3 NCT05155631 | University of California, Los Angeles | N/A |
| Completed | Postprandial Lipids in IBS and Nutritional Treatment NCT05016596 | Wageningen University and Research | N/A |
| Completed | The Effect of a Probiotic Mixture in Obese Patients With Irritable Bowel Syndrome NCT04760353 | University Hospital Rijeka | N/A |
| Completed | The Effect of Inulin Supplementation in Individuals With IBS-C NCT06945302 | Mardin Artuklu University | N/A |
| Terminated | Zemedy Application for Irritable Bowel Syndrome NCT04723056 | Stanford University | N/A |
| Unknown | The Optimal Route of Fecal Microbiota Transplantation for Irritable Bowel Syndrome NCT05874830 | Turku University Hospital | N/A |
| Active Not Recruiting | Personalised Multidisciplinary Treatment in Moderate to Severe IBS NCT07534930 | Linkoeping University | N/A |
| Unknown | Innovative Tools to Produce Legume-based Foods for Increased Consumer Acceptance NCT05118243 | University of Helsinki | N/A |
| Active Not Recruiting | Lifestyle Eating and Performance (LEAP) Program for the Treatment of Irritable Bowel Syndrome (IBS) NCT05178017 | Oxford Biomedical Technologies, Inc. | N/A |
| Completed | Study to Evaluate the Efficacy of Arrae's Bloat & Calm Alchemy Capsules to Reduce Bloating, Heartburn and Gas, NCT05197413 | Arrae | N/A |
| Completed | Effect of Postbiotic Product on Colonic Barriers in IBS NCT05475314 | Nordisk Rebalance A/S | N/A |
| Completed | Activity Changes in Irritable Bowel Syndrome (IBS), Anxiety, and Depression Following the Use of Viome Precisi NCT04905524 | Viome | N/A |
| Completed | Alcat Based Elimination Diet for the Treatment of Irritable Bowel Syndrome; a Randomized Double Blind Sham Con NCT05616429 | Sheba Medical Center | N/A |
| Completed | Study on the Relationship Between Mobile Phone Addiction and Functional Gastrointestinal Disorders NCT04817683 | Second Affiliated Hospital of Xi'an Jiaotong University | — |
| Unknown | Effects of Continuous Treatment With Rifaximin and Probiotics on the Gut Microbiota of Patients With IBS-D NCT04074421 | Second Affiliated Hospital, School of Medicine, Zhejiang University | Phase 4 |
| Completed | Effects of a Novel Machine Learning Mobile App on Diet Adherence in Individuals Following the Low Fodmap Diet NCT04256551 | Arizona State University | N/A |
| Recruiting | Ethosuximide and Pentoxifylline in the Treatment of Abdominal Pain Related to Irritable Bowel Syndrome NCT04217733 | Tanta University | Phase 3 |
| Terminated | Irritable Bowel Syndrome and Control Volunteers: Diet Challenge NCT03983434 | Indiana University | N/A |
| Unknown | Effect of a Diet Without Non-caloric Sweeteners on Gastrointestinal Symptoms in Patients With IBS and Dyspepsi NCT04129762 | Hospital General de Mexico | N/A |
| Suspended | A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Disease NCT04031469 | ProgenaBiome | — |
| Completed | Implementing a Low FODMAP Diet in Irritable Bowel Syndrome Patients NCT03948854 | Mayo Clinic | N/A |
| Completed | Study of Inflammatory Markers and Symptom Severity in Personalized Nutritional Intervention in IBS NCT04348760 | GEK Srl | N/A |
| Completed | Yogic Breathing and IBS NCT04225104 | Texas State University | N/A |
| Unknown | Mechanism of PERK - eIF2a Pathways in Intestinal Mucosal Barrier of IBS-D and the Role "Metabolism Ingredients NCT04122586 | Xiyuan Hospital of China Academy of Chinese Medical Sciences | N/A |
| Completed | Efficacy of Psychological Therapies in Patients With Functional Bowel Disorders NCT04060121 | Indiana University | — |
| Completed | Effect of Lactibiane Tolerance® to Treat Leaky Gut in Irritable Bowel Syndrome With Predominant Diarrhea (IBS- NCT04898257 | Larena SAS | N/A |
| Completed | TReatment of Irritable Bowel Syndrome With Diarrhoea Using Titrated ONdansetron Trial NCT03555188 | University of Leeds | Phase 3 |
| Unknown | Low FODMAP Diet on Nutritional Status, Disease Activity and Gut Microbiota in IBS and UC With Normal or Overwe NCT04143633 | Hospital General de Mexico | N/A |
| Completed | Ashtangayoga for IBS Show Positive Preliminary Effects on Symptoms and Well-being NCT04946604 | Karolinska Institutet | N/A |
| Completed | The Effect of Dietary Intervention on Symptoms, Epigenetics, and Gut Microbiota in IBS NCT03306381 | Region Skane | N/A |
| Completed | L. Casei DG® in Patients With Irritable Bowel Syndrome. NCT03449628 | SOFAR S.p.A. | N/A |
| Unknown | The IMAGINE-SPOR CIHR Chronic Disease Network NCT03131414 | Hamilton Health Sciences Corporation | — |
| Completed | The Impact of a Combination of Bifidobacterium Longum 35624® and 1714™ Strains in Adults With Irritable Bowel NCT04422327 | PrecisionBiotics Group Ltd. | Phase 1 / Phase 2 |
| Completed | International Psychometric Validation Study of the Intestinal Gas Questionnaire (IGQ) NCT03002584 | University Paris 7 - Denis Diderot | — |
| Completed | Ayurvedic Nutritional Counseling for Patients With IBS in Comparison to Conventional Nutritional Counseling NCT03019861 | Charite University, Berlin, Germany | N/A |
| Completed | The Prevalence of Irritable Bowel Syndrome Using Rome IV Criteria in Medical Student and The Related Factors NCT03178877 | Indonesia University | — |
| Completed | Fecal Transplantation in Patients With IBS NCT03333291 | Haukeland University Hospital | N/A |
| Completed | Patient Education for Patients With Irritable Bowel Syndrome (IBS) NCT03466281 | Sahlgrenska University Hospital | N/A |
| Completed | Treatment Efficacy of Low FODMAP Versus Low Lactose Diet in IBS Patients NCT04543474 | Cantonal Hospital of St. Gallen | N/A |
| Completed | Gluten Free Diet in IBS Patients Stratified According to Their Antigliadin Status NCT03492333 | McMaster University | N/A |
| Unknown | Individual vs. Group Hypnotherapy in Patients With Irritable Bowel Syndrome NCT03432078 | Sahlgrenska University Hospital | N/A |