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ClinicalTrials.gov public records Last synced Oct 25, 2026, 4:37 PM EDT

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Showing 433–456 of 583 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: GI Clear all
Completed No phase listed Observational

Development of Early Detection Signs for Gastrointestinal Cancer

NCT00633334
View directory record Official record
Conditions
GI Cancer
Interventions
Specimen bank
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
2,499 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Oct 25, 2026, 4:37 PM EDT
Enrolling by invitation Phase 1Phase 2 Interventional

Autism Spectrum Disorder (ASD) Neurodevelopmental Disorder With Issues Social Behavior, Communication Issues, GI Dysfunction. Study is Multimodal Interventions Targeting These Pathways With cSVF, Stored MSCs, FMT and Diet Modification. Role of Autoimmunity, Gut-brain Issues, & Issues Examined.

NCT07546942
View directory record Official record
Conditions
Autism Spectrum Disorder, Autism, Autism Spectral Disorder
Interventions
Autologous MSC isolation, concentration, and cryopreservation of adult mesenchymal stem cells, Fecal Biomicrome Transplantation (FMT), Ketogenic RESET Diet Protocol, Trial combines use of cSVF and MSCs (cryopres) with diet modification and FMT (fecal material Transplant in adult ASD patients, FMT (Fecal Material Tranplantation), Use autologous cSVF + MSCs (cryo) for management of autoimmune component, anti-inflammatory and immune modulation
Procedure · Dietary Supplement · Behavioral + 1 more
Lead sponsor
Black Tie Medical, Inc.
Industry
Eligibility
10 Years to 90 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
2
States / cities
Hamilton, Montana
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Oct 25, 2026, 4:37 PM EDT
Completed No phase listed Observational Results available

Real World Data on Gi(l)Otrif® Dose Adjustment

NCT02751879
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell Lung
Interventions
Not listed
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
228 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
The Bronx, New York • Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 8, 2019 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Phase 1 Interventional

UCN-01 and Irinotecan in Treating Patients With Advanced Solid Tumors

NCT00047242
View directory record Official record
Conditions
Unspecified Adult Solid Tumor, Protocol Specific
Interventions
7-hydroxystaurosporine, irinotecan hydrochloride
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 9, 2010 · Synced Oct 25, 2026, 4:37 PM EDT
Completed No phase listed Observational

Fecal Calprotectin Collection Protocol

NCT03143517
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Irritable Bowel Syndrome, Ulcerative Colitis, Crohn Disease, Indeterminate Colitis, Chronic Diarrhea, Celiac Disease, Diverticulitis, Abdominal Pain, Distension, Weight Loss, Food Intolerance, Constipation
Interventions
Stool collection
Diagnostic Test
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
4 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
13
States / cities
Dothan, Alabama • Little Rock, Arkansas • Mission Hills, California + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2019 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of Lactobacillus Reuteri (L. Reuteri) in Healthy Adults

NCT00922727
View directory record Official record
Conditions
Colic, Gastrointestinal Tract Infections
Interventions
L. reuteri, Sunflower Oil
Biological
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 25, 2018 · Synced Oct 25, 2026, 4:37 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of CBD on 2 Mile Run Time Trial Performance

NCT06364254
View directory record Official record
Conditions
Healthy
Interventions
Cannabidiol Capsules
Dietary Supplement
Lead sponsor
University of Northern Colorado
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Greeley, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 3, 2024 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Not applicable Interventional Results available

Proton Radiotherapy for Upper Gastrointestinal Malignancies

NCT01449864
View directory record Official record
Conditions
Gastrointestinal Cancer
Interventions
Proton therapy
Radiation
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 15, 2020 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

GI Permeability Change in Response to Aquamin®

NCT04855799
View directory record Official record
Conditions
Ulcerative Colitis, Healthy, Irritable Bowel Syndrome With Diarrhea
Interventions
Aquamin
Drug
Lead sponsor
James Varani
Other
Eligibility
18 Years to 80 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 17, 2026 · Synced Oct 25, 2026, 4:37 PM EDT
Not listed Phase 2 Interventional

Accuracy, Yield and Clinical Impact of a Low-Cost HRME in the Early Diagnosis of Esophageal Adenocarcinoma

NCT02018367
View directory record Official record
Conditions
Barrett's Esophagus
Interventions
Proflavine, high resolution imaging
Drug
Lead sponsor
Anandasabapathy, Sharmila, M.D.
Individual
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Oct 25, 2026, 4:37 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Advancing Nursing Practices in Hospital Oncology Care

NCT05053191
View directory record Official record
Conditions
Gastrointestinal Cancer, Gastrointestinal Disease, Nurse's Role
Interventions
Partnership, Assessment, Care and Transition training intervention
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 25, 2026, 4:37 PM EDT
Terminated No phase listed Observational

Detection of Gastrointestinal Bleeding in Intensive Care Patients Via Biosensor Watch

NCT03874169
View directory record Official record
Conditions
Gastro Intestinal Bleeding
Interventions
E4 wristband
Device
Lead sponsor
Columbia University
Other
Eligibility
25 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 3, 2023 · Synced Oct 25, 2026, 4:37 PM EDT
Completed No phase listed Observational

Prospective Collection of PillCam SB3 Videos and Raw Data Files for Future Developments (SODA)

NCT03771508
View directory record Official record
Conditions
Small Intestine Disease, Small Intestine Cancer, Small Intestinal Ulcer Bleeding, Small Intestine Obstruction, Small Intestine Adenocarcinoma, Small Intestine Polyp
Interventions
Not listed
Lead sponsor
Medtronic - MITG
Industry
Eligibility
Not listed
Enrollment
3,712 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
30
States / cities
Birmingham, Alabama • Escondido, California • Valencia, California + 26 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2025 · Synced Oct 25, 2026, 4:37 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Splanchnic Venous Capacitance in Postural Tachycardia Syndrome

NCT05375968
View directory record Official record
Conditions
Postural Tachycardia Syndrome (POTS)
Interventions
Measurement of Splanchnic venous capacitance(SVC)done at Baseline and after 90 min of 75 g glucose in Healthy Controls POTS patients, Measurement of Splanchnic venous capacitance(SVC)done at Baseline and after 90 min of 75 g glucose in Healthy Controls, Compare change is SVC and SMA flow due to GIP antagonist GIP(3-30)NH2, Compare change is SVC and SMA flow due to saline
Diagnostic Test · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 5, 2025 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Fiber on Appetite and Digestion Hormones

NCT01050101
View directory record Official record
Conditions
Psychological Phenomena and Processes, Nutrition Physiological Phenomena
Interventions
No fiber, Low GI high fiber viscous meal, Low GI high fiber non-viscous
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
18 Years and older · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced Oct 25, 2026, 4:37 PM EDT
Completed No phase listed Observational

Intestinal Microbiome, Oral Microbiome, and Whole Blood Transcriptome Analyses in Gastrointestinal Malignancies

NCT05462314
View directory record Official record
Conditions
Gastrointestinal Cancer, Pancreatic Cancer, Esophageal Cancer, Gastric Cancer, Rectal Cancer, Liver Cancer, Biliary Cancer
Interventions
Not listed
Lead sponsor
Viome
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Not applicable Interventional

Cost-effective Analysis of Two Approximation Devices in Closure of Gastrointestinal Defects

NCT05163665
View directory record Official record
Conditions
Gastrointestinal Neoplasms
Interventions
Closure type
Procedure
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 15, 2024 · Synced Oct 25, 2026, 4:37 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Confocal Probe-based Endoscopic Imaging, Colorectal Cancer, Gastrointestinal (GI) Pathologies

NCT00874263
View directory record Official record
Conditions
Colonic Polyps, Esophageal Diseases
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 22, 2012 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Phase 3 Interventional

Esomeprazole for Prevention of Upper Gastrointestinal Symptoms Associated With Continuous Use of NSAIDs

NCT00241514
View directory record Official record
Conditions
GERD
Interventions
Esomeprazole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
334 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
19
States / cities
Tucson, Arizona • Anaheim, California • Orange, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2011 · Synced Oct 25, 2026, 4:37 PM EDT
Completed No phase listed Observational

Glycemic Index in Mitochondrial Disease

NCT02284334
View directory record Official record
Conditions
Mitochondrial Diseases
Interventions
test meal
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
7 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 20, 2020 · Synced Oct 25, 2026, 4:37 PM EDT
Recruiting Not applicable Interventional

GI Oxalate Absorption

NCT05356000
View directory record Official record
Conditions
Bariatric Surgery Candidate, Kidney Stone
Interventions
Special low-oxalate diet followed by all-day visit to University of Chicago research clinic
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 19, 2025 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Protein-Prebiotic Wellbeing Study

NCT05303753
View directory record Official record
Conditions
Digestive Health, Quality of Life
Interventions
fermented dairy protein with prebiotic fiber
Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 35 Years
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Survival of the Probiotic Lacticaseibacillus Paracasei Strain Shirota (LcS) in the GI Tract of Healthy Adults

NCT05522777
View directory record Official record
Conditions
Healthy
Interventions
Drink one bottle of Yakult a day
Other
Lead sponsor
Yakult U.S.A. Inc.
Industry
Eligibility
18 Years to 40 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Fountain Valley, California
Source: ClinicalTrials.gov public record
Updated Dec 6, 2024 · Synced Oct 25, 2026, 4:37 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Efficacy of Eco-Friendly Toothpaste Tablets Versus Conventional Toothpaste Using PI and GI Index

NCT05805865
View directory record Official record
Conditions
Gingival Inflammation
Interventions
Toothpaste Tablet, Conventional Toothpaste
Drug
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Feb 21, 2025 · Synced Oct 25, 2026, 4:37 PM EDT