| Not Yet Recruiting | Saudi Emergency Laparotomy Audit NCT07429929 | King Faisal Specialist Hospital & Research Center | — |
| Recruiting | Trans-nasal Endoscopy for Bariatric Patients NCT06200961 | Christopher C. Thompson, MD, MSc | N/A |
| Not Yet Recruiting | Objective Vascular Biomarkers as Triage for Depression in Chronic Atrophic Gastritis NCT07319338 | China Academy of Chinese Medical Sciences | — |
| Not Yet Recruiting | Enhanced Ward Rounds and Communication for Pre-procedural Anxiety in GI Endoscopy Patients NCT07286877 | LanZhou University | N/A |
| Recruiting | Post-Market Study of the Signia Circular Stapler With Tri-Staple Technology in Left-sided Colon, Sigmoid, and NCT07351071 | Medtronic - MITG | N/A |
| Recruiting | Symbiotic-GI-03: A Study to Learn About the Study Medicine Called PF-08634404 in Combination With Chemotherapy NCT07222800 | Pfizer | Phase 3 |
| Active Not Recruiting | Spatiotemporal Dynamics and Prognostic Value of the 18F-FDG PET Neuro-Metabolic Network NCT07203495 | The First Affiliated Hospital of Zhengzhou University | — |
| Completed | Health Impacts of Street Vended Fruits NCT06858046 | Bangladesh Agricultural University | N/A |
| Completed | Evaluation of the Effectiveness of a Topical Medical Device in Wound Healing and Symptom Relief in the Postope NCT06872151 | University of Cagliari | Phase 4 |
| Enrolling By Invitation | Effectiveness of Probiotics for the Prevention of Gastrointestinal Toxicity in Children With Leukemia NCT06560879 | National Institute of Pediatrics, Mexico | Phase 2 |
| Not Yet Recruiting | Correlation of Toxins With Gastrointestinal (GI) and Overall Health NCT06278311 | Vibrant America Clinical Lab | — |
| Recruiting | Analytical Validation of Stream™ Platform NCT06541431 | FluidAI Medical | — |
| Enrolling By Invitation | Evaluation of Early Mobilization Protocol in Patients Undergoing Gastrointestinal Surgery NCT06679478 | Uludag University | N/A |
| Recruiting | Evaluation of Efficacy of Skål Pro Powder on Symptoms of Irritable Bowel Syndrome NCT06271538 | EP Plus Group Sdn Bhd | Phase 4 |
| Active Not Recruiting | Burden of Recreational Water Illness Due to Exposure to Cyanobacteria and Their Toxins in Freshwater Beaches i NCT06579170 | Toronto Metropolitan University | — |
| Completed | Probiotics Improve Health Young Volunteers' Gut Microbiota NCT06196892 | Wecare Probiotics Co., Ltd. | N/A |
| Completed | A Randomized Comparison of UnderwateR Versus Regular Coagulation in Endoscopic Submucosal DissectioN and Third NCT05804266 | Istituto Clinico Humanitas | N/A |
| Recruiting | Fecal Microbiota Transplantation for Patients With Autism Spectrum Disorder. NCT06290258 | Chang Gung Memorial Hospital | Phase 1 / Phase 2 |
| Recruiting | Evaluate the Efficacy of Adding Intraluminal Brachytherapy After CCRT for Local-regional Thoracic Esophageal C NCT06365866 | Taipei Veterans General Hospital, Taiwan | N/A |
| Recruiting | Virtual Reality for Non-cardiac Chest Pain NCT06262126 | Mayo Clinic | N/A |
| Recruiting | A Clinical Study to Map the HLA Genomic Region in the Greek Population NCT06227468 | Athens LifeTech Park | — |
| Completed | Improved Gut Health Outcomes Associated With Probiotics Fortified With Hydrolyzed Whey Protein in Infant Formu NCT06159088 | Heilongjiang Feihe Dairy Co. Ltd. | N/A |
| Unknown | Effect Of a Goat Milk-Based Infant Formula On Gastrointestinal And Other Symptoms And Health-Related Quality O NCT06108401 | Medical University of Warsaw | N/A |
| Unknown | Improving Quality of ICD-10 Coding Using AI: Protocol for a Crossover Randomized Controlled Trial NCT06286865 | University Hospital of North Norway | N/A |
| Active Not Recruiting | Prebiotic Effects on Gut Microbiota, Gut Comfort and Immune Function NCT06094153 | Kyowa Hakko Bio Co., Ltd. | N/A |
| Recruiting | A Personalised Approach Utilising the Frailty Index to Empower Consumers NCT05292989 | Princess Alexandra Hospital, Brisbane, Australia | N/A |
| Active Not Recruiting | An Observational Study of Patients With Chronic Gastrointestinal Disease NCT05774080 | Target PharmaSolutions, Inc. | — |
| Unknown | Developing a Mobile Application for the Care of Children With Gastrostomy and The Effect of the Application on NCT05831514 | Akdeniz University | N/A |
| Active Not Recruiting | Canadian Beach Cohort Study NCT06413485 | Toronto Metropolitan University | — |
| Recruiting | SCI-Pex Study - Safety and Performance of PexyEazy®, a Device for Treatment of Hemorrhoids NCT05782010 | Developeration AB | N/A |
| Completed | Varied Remimazolam Dosages for Pediatric Endoscopy NCT07083440 | Children's Hospital of Hebei Province | N/A |
| Completed | Artificial Intelligence vs Endoscopist Identification in EUS Normal Anatomy NCT06279546 | Instituto Ecuatoriano de Enfermedades Digestivas | — |
| Recruiting | A Practice Change for Patients With Severe Chronic, Clinically Unexplained Gastrointestinal Symptoms NCT05274854 | The University of Queensland | N/A |
| Unknown | Effect of Synapse Medicine Decision Support on Inpatient Pharmacist Efficacy and Efficiency NCT05459155 | Brigham and Women's Hospital | N/A |
| Completed | The U.K. Embryologist Fatigue Study NCT05708963 | TMRW Life Sciences | — |
| Recruiting | Immune Responses to Gluten NCT05209568 | Boston Children's Hospital | N/A |
| Recruiting | Prevalence Of Significant Endoscopic and Histopathologic Findings in Patients Presenting With Unexplained Iron NCT06430970 | Mansoura University | N/A |
| Unknown | A Study of Anaprazole Sodium Enteric-coated Tablets in the Treatment of Reflux Esophagitis NCT05604261 | Xuanzhu Biopharmaceutical Co., Ltd. | Phase 2 |
| Unknown | Holographic Screens as a Replacement of Monitors During GI Endoscopies NCT05640401 | Instituto Ecuatoriano de Enfermedades Digestivas | N/A |
| Enrolling By Invitation | Advancing Health Information Exchange (HIE) During Inter-hospital Transfer (IHT) to Improve Patient Outcomes NCT05443321 | Brigham and Women's Hospital | N/A |
| Unknown | Gut Recovery In Patients Following Surgery NCT05712525 | G-Tech Corporation | — |
| Terminated | Digital Therapeutic for Adolescent Depressive Symptoms in Cardiology and Gastroenterology NCT05461599 | Limbix Health, Inc. | N/A |
| Completed | Relationship of Cervical Region Tension With Vagal Function NCT05325879 | Hacettepe University | N/A |
| Recruiting | First-in-human Study of IDRX-42 in Participants With Metastatic and/or Unresectable Gastrointestinal Stromal T NCT05489237 | IDRX, Inc., a wholly owned subsidiary of GSK, LLC | Phase 1 |
| Recruiting | PACT Programme for Parents of Children With SHCN NCT05467527 | Chinese University of Hong Kong | N/A |
| Recruiting | Anlotinib Hydrochloride Capsules Combined With TQB2450 Injection in Esophageal Squamous Cell Carcinoma Patient NCT05252078 | Jiangxi Provincial Cancer Hospital | Phase 2 |
| Unknown | Cross-condition Validation of the Steroid PRO NCT06314451 | University of the West of England | — |
| Completed | Myoelectric Activity Following Colorectal Surgery and Return of Bowel Function NCT05298774 | Yale University | N/A |
| Completed | Using Magnetic Field Tracking to Confirm Nasogastric Tube Placement at Point of Care NCT05204901 | Tan Tock Seng Hospital | N/A |
| Completed | The U.S. Embryologist Fatigue Study NCT05326802 | TMRW Life Sciences | — |
| Recruiting | XELOX Combined With Anlotinib and Penpulimab vs XELOX as Adjuvant Therapy in ctDNA Positive Gastric and Esopha NCT05494060 | The First Affiliated Hospital with Nanjing Medical University | Phase 2 |
| Completed | Bioequivalence Study of Esomeprazole 20 Milligram (mg) Delayed-Release Capsules in Healthy Adult Participants NCT05265247 | HALEON | Phase 1 |
| Recruiting | Evaluation of Patients With Gastrointestinal Disease NCT05041374 | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | — |
| Terminated | A Study of THE-630 in Patients With Advanced Gastrointestinal Stromal Tumors (GIST) NCT05160168 | Theseus Pharmaceuticals | Phase 1 / Phase 2 |
| Unknown | Propofol Versus Midazolam in Sedation for Upper and Lower Gastrointestinal Endoscopy. NCT06358131 | Mansoura University | Phase 1 |
| Terminated | A Home-Based Approach Study to Evaluate the Efficacy and Safety of Alectinib in Locally-Advanced or Metastatic NCT04644315 | Hoffmann-La Roche | Phase 2 |
| Unknown | Efficacy of a Low Fiber Diet for Pediatric Colonoscopy Prep NCT05918562 | Rhode Island Hospital | N/A |
| Terminated | Health-Related Quality of Life in Crohn's Disease Participants With Complex Perianal Fistula Before and After NCT04102163 | Takeda | — |
| Unknown | Palliative Primary Tumor Resection in Minimally Symptomatic Patients With Colorectal Cancer and Synchronous Un NCT05322486 | State Scientific Centre of Coloproctology, Russian Federation | — |
| Recruiting | Foregut Leaks-Role of Microbiome NCT07424469 | Baylor Research Institute | N/A |
| Completed | Anlotinib Hydrochloride Capsules Combined With CAPEOX in RAS and BRAF Wild-type mCRC Patients NCT04080843 | Zhejiang University | Phase 2 |
| Unknown | Nutraceuticals and Functional Foods NCT05509075 | University of Catanzaro | — |
| Unknown | Assessing Depth of Small Bowel Insertion at Push Enteroscopy by Using Capsule Endoscopy NCT05731388 | Unity Health Toronto | — |
| Completed | Goat Milk Infant Formula Comfort Study NCT06301139 | Ausnutria Hyproca B.V. | N/A |
| Completed | GI Symptoms in Infants Fed GMF or CMF NCT06395571 | Ausnutria Hyproca B.V. | N/A |
| Completed | The Prevalence and Predictors of Gastrointestinal Symptoms in Children With Attention Deficit / Hyperactivity NCT03879343 | Hospital Authority, Hong Kong | — |
| Withdrawn | Optimizing the Preparation Regime Prior to Colonoscopy Procedure With Pure-Vu System NCT03493009 | Motus GI Medical Technologies Ltd | N/A |
| Completed | Utility of Pharmacogenomic Testing in Patients With Gastrointestinal Disorders NCT05572593 | Mayo Clinic | N/A |
| Unknown | Radiomics for Prediction of Lymph Node Metastasis in Gastric Cancer（RPLNM）(GIPMCS-1701) NCT03488446 | Nanfang Hospital, Southern Medical University | — |
| Completed | Effect of Lactobacillus Reuteri DSM17938 in Neonates Treated With Antibiotics NCT02865564 | University Medical Centre Ljubljana | N/A |
| Completed | Point of Care 3D Ultrasound for Various Applications: A Pilot Study NCT02831556 | Duke University | — |
| Completed | Study of a Monoclonal Antibody KHK4083 in Moderate Ulcerative Colitis NCT02647866 | Kyowa Kirin, Inc. | Phase 2 |
| Completed | The Effect of Dream Doctors in Children Undergoing Digestive Endoscopic Procedures NCT02668679 | HaEmek Medical Center, Israel | N/A |
| Completed | An Observer Blinded Comparison of MACE and Conventional Upper Gastrointestinal Endoscopy in Upper GI Bleeding NCT02690376 | Sheffield Teaching Hospitals NHS Foundation Trust | N/A |
| Completed | fMRI and Visceral Perception Upon Capsaicin Infusion NCT02551029 | Maastricht University Medical Center | N/A |
| Completed | Study Evaluating the Effect of Person-centred Care for Patients Admitted for Inpatient Care at an Internal Med NCT03725813 | Göteborg University | N/A |
| Completed | Exploratory Study of Upper and Lower Endoscopic Fuse System NCT02651857 | EndoChoice Inc. | N/A |
| Terminated | Preoperative Relaxation and Intensified Patient Surgery Education in Patients Undergoing Colorectal Surgery NCT02541357 | Universität Duisburg-Essen | N/A |
| Completed | The Optimization of a Low-dose Computed Tomography Protocol in Patients With Suspected Uncomplicated Acute App NCT02533869 | Turku University Hospital | N/A |
| Completed | Remote Ischemic Conditioning in Patients With Ulcerative Colitis NCT02445365 | Odense University Hospital | N/A |
| Completed | Impact of Improving Gastrointestinal Symptoms on Autism Symptoms and Oxidative Stress NCT02442115 | Children's Hospital Los Angeles | — |
| Completed | GI Biorepository of Tissue and Bodily Fluids NCT02486146 | University of California, Davis | — |
| Unknown | Determining the Potential of Wholegrain Wheat and Rye to Improve Gut HealTh NCT02358122 | University of Copenhagen | N/A |
| Unknown | Study of Autologous Tumor Lysate-pulsed D-CIK Combined With Chemotherapy for Gastric Cancer NCT02215837 | Shenzhen Hornetcorn Bio-technology Company, LTD | Phase 2 |
| Unknown | Adoptive Cell Therapy Plus Chemotherapy and Radiation After Surgery in Treating Patients With Colorectal Cance NCT02202928 | Shenzhen Hornetcorn Bio-technology Company, LTD | Phase 2 |
| Completed | Evaluation of Laparoscopic Peritoneal Lavage for Perforated Diverticulitis: A National Registry - Based Study NCT05893095 | Uppsala University Hospital | — |
| Completed | A Study of EndoChoice's Upper&Lower Endoscopic Systems Utilizing a Full Spectrum Optical Technology NCT02143284 | EndoChoice Innovation Center, Ltd. | N/A |
| Completed | Effects of Fasting on Self Efficacy NCT02113111 | Universität Duisburg-Essen | — |
| Completed | Bioequivalence Study of Raperazole 20mg DR Tabs and PARIET® 20 mg DR Tabs Under Fed Conditions NCT02605395 | GlaxoSmithKline | Phase 4 |
| Completed | A Bioequivalence Study of Idiazole 20mg DR Tabs and PARIET® 20 mg DR Tabs After a Single Oral Dose Administrat NCT02446483 | GlaxoSmithKline | Phase 4 |
| Unknown | Efficacy and Safety Study of Tripterygium Glycoside in the Treatment of Crohn's Disease for Induction Remissio NCT02044952 | Zhu Weiming | Phase 2 / Phase 3 |
| Completed | Evolution® Biliary Stent System Clinical Study NCT01962168 | Cook Group Incorporated | — |
| Completed | Virtual Path Planning for Image-guided Needle Interventions NCT02021071 | Philips Clinical & Medical Affairs Global | — |
| Unknown | Trial to Assess the Effectiveness of Educational Outreach in Prescription Guidelines NCT01984034 | Universidade Nova de Lisboa | N/A |
| Completed | Functional MRI of Hypoxia-mediated Rectal Cancer Aggressiveness NCT01816607 | University Hospital, Akershus | — |
| Completed | Effect of TU-100 in Patients With Irritable Bowel Syndrome (IBS) NCT01890837 | Tsumura USA | Phase 1 / Phase 2 |
| Unknown | Molecular, Pathologic and MRI Investigation of the Prognostic and Redictive Importance of Extramural Venous In NCT01995942 | Royal Marsden NHS Foundation Trust | — |
| Completed | Evaluation of People With Gastrointestinal Disease NCT01639924 | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | — |
| Completed | Probiotics and Infections in Conscripts in Military Service NCT01651195 | Helsinki University Central Hospital | N/A |
| Completed | Gastrointestinal Myoelectric Activity Protocol, the G-Tech EEnG Protocol NCT01697397 | G-Tech Corporation | — |
| Completed | The EVICEL® Gastrointestinal Study NCT01589822 | Ethicon, Inc. | Phase 2 |
| Completed | Warm Water and Unsedated Colonoscopy NCT01463319 | Presidio Ospedaliero Santa Barbara | EARLY_Phase 1 |
| Recruiting | Anonymous Data Sharing for Small Bowel NCT06868875 | University College, London | — |
| Completed | Ultraviolet Light And Vitamin D In Subjects With Fat Malabsorption Or After Gastric Bypass Surgery NCT01910792 | Boston University | N/A |
| Completed | Evaluation of the Safe Use and Tolerance of a Peptide-based Formula in a Pediatric Population NCT01191112 | Abbott Nutrition | Phase 3 |
| Completed | The Effects of an Infant Formula Containing Probiotic CECT7210 on Gastrointestinal Health NCT02096302 | Laboratorios Ordesa | N/A |
| Completed | Evaluation of Universal Rotavirus Vaccination Program NCT01273077 | Dalhousie University | — |
| Unknown | Optimum Timing for Surgery After Pre-operative Radiotherapy 6 vs 12 Weeks NCT01037049 | Royal Marsden NHS Foundation Trust | Phase 2 |
| Unknown | Validation of New Tests for Gastrointestinal (GI) Permeability NCT00943345 | Maastricht University Medical Center | EARLY_Phase 1 |
| Completed | Prospective Evaluation of the Clinical Utility of Endoscopically Placed Self-expandable Stents NCT00968552 | University of Florida | — |
| Terminated | Advanced Gastrointestinal Endoscopic Imaging NCT01034670 | Stanford University | N/A |
| Enrolling By Invitation | The Clinical Impact and Outcomes of Interventional Endoscopy Procedures NCT01492231 | University of California, Irvine | — |
| Completed | Single- Versus Double-balloon Enteroscopy in Small Bowel Diagnostics NCT00708253 | University Hospital Muenster | N/A |
| Completed | Web-Based Survey of Pain, Stress and Complementary and Alternative Medicine NCT00740233 | University of California, Los Angeles | — |
| Terminated | Transit Time and Bacterial Overgrowth Using SmartPill Capsule NCT00577772 | Mayo Clinic | N/A |
| Unknown | Low Rectal Cancer Study (MERCURY II) NCT02005965 | Royal Marsden NHS Foundation Trust | — |
| Completed | Evaluation of Arterial Pressure Based Cardiac Output for Goal-Directed Perioperative Therapy NCT00526331 | M.D. Anderson Cancer Center | Phase 4 |
| Completed | A Comparison of SmartPill Capsule With Scintigraphy for Determining Gastric Residence Time - Over 65 Years Old NCT00682877 | The SmartPill Corporation | — |
| Completed | A Phase IV Study, of the Efficacy, Safety, and Acceptability of Moviprep® Versus Colopeg® in Colonoscopy Prepa NCT00605228 | Norgine | Phase 4 |
| Completed | DIAMANTE - Diseases Infectious Analysis Microflora Antibiotic Effect NCT00424905 | Sanofi | Phase 4 |
| Completed | A Randomized Controlled Trial of a School Disinfection and Hand Hygiene Program NCT00514670 | Boston Children's Hospital | N/A |
| Completed | Trans GERD: Efficacy and Tolerability of Esomeprazol in Patients Under Ordinary Medical Care Conditions NCT00612027 | AstraZeneca | — |
| Unknown | Abnormal Expression Proteins, Mitochondrial DNA and miRNA of Irritable Bowel Syndrome NCT01028898 | Chinese PLA General Hospital | — |
| Completed | Symptoms and Endoscopic Results in Consideration of Pretreatment NCT00612404 | AstraZeneca | — |
| Unknown | Safety and Efficacy Study in the Treatment of Intestinal Problems Associated With Autism NCT00110708 | PediaMed Pharmaceuticals | Phase 2 |
| Completed | A Comparison of SmartPill Capsule With Scintigraphy for Determining Gastric Residence Time NCT00128284 | The SmartPill Corporation | — |
| Completed | Docetaxel, 5-Fluorouracil and Oxaliplatin in Adenocarcinoma of the Stomach or Gastroesophageal Junction Patien NCT00526110 | M.D. Anderson Cancer Center | Phase 1 / Phase 2 |
| Completed | The Surgical Gastrointestinal Diseases Registry Protocol NCT00634153 | University of Pittsburgh | — |
| Completed | Comparison of a "Step-Up" Versus a "Step-Down" Treatment Strategy for Patients With New Onset Dyspepsia in Gen NCT00247715 | Radboud University Medical Center | N/A |
| Completed | Tolerance and Practicality of Module AOX NCT00425529 | Amsterdam UMC, location VUmc | EARLY_Phase 1 |
| Completed | Study of the Safety and Efficacy of NC-503 in Secondary (AA) Amyloidosis NCT00035334 | Bellus Health Inc. - a GSK company | Phase 2 / Phase 3 |
| Completed | A Trial of Tap Water Treatment in the Elderly NCT00058942 | National Institute on Aging (NIA) | N/A |
| Completed | A Randomized, Double-Blind, Placebo Controlled Trial Evaluating the Impact of Nystatin on the Development of O NCT00001812 | National Cancer Institute (NCI) | Phase 3 |
| Completed | Clinical Use of an Absorbable Coated Suture Material in Surgery (Safil) NCT00645684 | Aesculap AG | Phase 4 |
| Completed | Regulation of Human Intestinal Bile Acid Transport in Health and Disease NCT00018681 | US Department of Veterans Affairs | — |
| Completed | Efficacy and Tolerability of Buscopan Plus in Painful Gastric or Intestinal Spasms NCT02229786 | Boehringer Ingelheim | Phase 2 |
| Completed | Cohort of Swedish Men NCT01127711 | Karolinska Institutet | — |
| Unknown | Phase II Pilot Study to Compare the Bioavailability of Buffered, Enteric-Coated Ursodiol With Unmodified Ursod NCT00004315 | National Center for Research Resources (NCRR) | Phase 2 |
| Completed | Swedish Mammography Cohort NCT01127698 | Karolinska Institutet | — |
| Active Not Recruiting | ESPRESSO (Epidemiology Strengthened by histoPathology Reports in Sweden) NCT06371820 | Karolinska Institutet | — |
| Completed | Probiotics and Infections in Children Attending Day Care Centres NCT01014676 | Valio Ltd | Phase 3 |
| Completed | The Safety and Effectiveness of Ganciclovir in the Prevention of Cytomegalovirus (CMV) of the Eyes and Disease NCT00001034 | National Institute of Allergy and Infectious Diseases (NIAID) | Phase 2 |
| Completed | Phase III Multicenter, Open-Label, Randomized Trial of Induction Versus Induction Plus Maintenance Foscarnet ( NCT00002145 | Astra USA | Phase 3 |