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ClinicalTrials.gov public records Last synced Oct 25, 2026, 9:01 PM EDT

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Showing 481–504 of 583 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: GI Clear all
Completed Early Phase 1 Interventional

Application of Ergogenic Aids to the Prehabilitation of Abdominal Cancer Patients Undergoing Cancer Surgery

NCT04073381
View directory record Official record
Conditions
Prehabilitation
Interventions
Prehabilitation Program
Combination Product
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 90 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jul 8, 2021 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mediterranean Style Diet and Low Glycemic Responses

NCT03410719
View directory record Official record
Conditions
Insulin Sensitivity
Interventions
Hi GI
Other
Lead sponsor
Purdue University
Other
Eligibility
30 Years to 69 Years
Enrollment
166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 17, 2020 · Synced Oct 25, 2026, 9:01 PM EDT
Not listed No phase listed Observational

GI Complications in Cancer Immunotherapy Patients

NCT02784366
View directory record Official record
Conditions
Malignant Melanoma
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 5, 2022 · Synced Oct 25, 2026, 9:01 PM EDT
Completed No phase listed Observational

Pharmacist-Driven Stress Ulcer Prophylaxis Minimization in the Intensive Care Unit

NCT06225167
View directory record Official record
Conditions
Stress Ulcer
Interventions
To evaluate the effectiveness and safety of a pharmacist-driven protocol to discontinue stress ulcer prophylaxis in ICU patients when it is no longer indicated according to pre-defined criteria.
Behavioral
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years to 85 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Richardson, Texas
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity & Safety Study of Adenovirus Type 5 (AD5) Based Oral Norovirus Vaccines

NCT04875676
View directory record Official record
Conditions
Norovirus Infections
Interventions
VXA-G1.1-NN
Biological
Lead sponsor
Vaxart
Industry
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Quantification of Estradiol's Impact on Nucleotides in Cellular Populations of the Lower GI Tract

NCT03917420
View directory record Official record
Conditions
HIV/AIDS
Interventions
Tenofovir 300Mg Oral Tablet, Emtricitabine 200 MG
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 49 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 12, 2023 · Synced Oct 25, 2026, 9:01 PM EDT
Terminated Phase 2 Interventional Results available

Liposomal Irinotecan, Fluorouracil and Leucovorin in Treating Patients With Refractory Advanced High Grade Neuroendocrine Cancer of Gastrointestinal, Unknown, or Pancreatic Origin

NCT03736720
View directory record Official record
Conditions
Locally Advanced Digestive System Neuroendocrine Carcinoma, Locally Advanced Pancreatic Neuroendocrine Carcinoma, Metastatic Digestive System Neuroendocrine Carcinoma, Metastatic Pancreatic Neuroendocrine Carcinoma, Refractory Digestive System Neuroendocrine Carcinoma, Refractory Pancreatic Neuroendocrine Carcinoma, Unresectable Digestive System Neuroendocrine Carcinoma, Unresectable Pancreatic Neuroendocrine Carcinoma
Interventions
Fluorouracil, Leucovorin, Liposomal Irinotecan, Quality-of-Life Assessment
Drug · Procedure
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
2
States / cities
Buffalo, New York • Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Jan 30, 2025 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of Dietary Supplement in Subjects With Acid Reflux and/or Abdominal Bloating/Distention and GI Symptoms

NCT06808867
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Dietary Supplement with Active Ingredient Blend
Dietary Supplement
Lead sponsor
Olly, PBC
Industry
Eligibility
18 Years to 85 Years
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 5, 2025 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Not applicable Interventional

Tolerability Study of a Novel Microbiome Therapeutic in Subjects With Gastroesophageal Reflux Disease

NCT04491734
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
maltosyl-isomalto-oligosaccharides (MIMO)
Dietary Supplement
Lead sponsor
ISOThrive Inc.
Industry
Eligibility
25 Years to 75 Years
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Manassas, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 30, 2021 · Synced Oct 25, 2026, 9:01 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Colorectal Cancer Screening Validation Study

NCT00720993
View directory record Official record
Conditions
Colorectal Cancer Screening
Interventions
Not listed
Lead sponsor
IntelliGeneScan, Inc.
Industry
Eligibility
50 Years and older
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 23, 2009 · Synced Oct 25, 2026, 9:01 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Effects of Adding Chickpeas to the American Diet (Long Term Study)

NCT02375373
View directory record Official record
Conditions
Inflammation
Interventions
Observational Chickpea Diet
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 19, 2016 · Synced Oct 25, 2026, 9:01 PM EDT
Recruiting Not applicable Interventional

Symptom Management and Survivorship Plus Coaching for Advanced Cancer Survivors and Their Caregivers

NCT07415564
View directory record Official record
Conditions
Cancer Metastatic, Symptoms and Signs, Quality of Life
Interventions
Symptom Management and Survivorship Handbook + Coaching, Symptom Management and Survivorship Handbook
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety & Immunogenicity Study of Ad5 Based Oral Norovirus Vaccines

NCT03897309
View directory record Official record
Conditions
Norovirus Infection
Interventions
VXA-G1.1-NN, VXA-G2.4-NS, Placebo Tablets
Biological
Lead sponsor
Vaxart
Industry
Eligibility
18 Years to 49 Years
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 21, 2022 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Bivalent Norovirus Vaccine Study

NCT01168401
View directory record Official record
Conditions
Gastroenteritis
Interventions
NoV GI.1/GII.4 Bivalent VLP Vaccine, Saline
Biological
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 85 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
3
States / cities
Silver Springs, Maryland • St Louis, Missouri • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Nov 23, 2018 · Synced Oct 25, 2026, 9:01 PM EDT
Recruiting Not applicable Interventional

Testing of GripTract-GI Endoscopic Tissue Manipulator for Use During Complex Endoscopic Polypectomies in the Colon

NCT06015607
View directory record Official record
Conditions
Polyps Colorectal
Interventions
Control (via ESD using standard of care), GripTract
Device
Lead sponsor
Actuated Medical, Inc.
Industry
Eligibility
21 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Not applicable Interventional Results available

Comparing Early Capsule Deployment to Current Standard of Care for Management of Gastrointestinal Bleeding

NCT02442830
View directory record Official record
Conditions
Melena, Gastrointestinal Hemorrhage
Interventions
Early Video Capsule Endoscopy
Device
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 7, 2018 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Phase 1 Interventional

High Dose Rate Prostate Brachytherapy as Salvage for Locally Recurrent Prostate Cancer Previously Treated With External Beam Radiotherapy

NCT00604526
View directory record Official record
Conditions
Prostate Cancer
Interventions
High dose rate (HDR) brachytherapy using Iridium 192 radioactive seeds
Radiation
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years to 85 Years · Male only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 5, 2016 · Synced Oct 25, 2026, 9:01 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Radicle GI Health RAATM: A Study Assessing the Impact of Health and Wellness Products on Gastrointestinal-Related Quality of Life and Related Health Outcomes

NCT07653776
View directory record Official record
Conditions
Digestion-associated Quality of Life
Interventions
Placebo GI Health Control, Active GI Health Product 1
Dietary Supplement
Lead sponsor
Radicle Science
Industry
Eligibility
21 Years to 105 Years
Enrollment
550 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Del Mar, California
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 25, 2026, 9:01 PM EDT
Terminated Phase 4 Interventional Results available

Ketamine-assisted Therapy for Advanced GI Cancer

NCT06077487
View directory record Official record
Conditions
Pancreatic Ductal Adenocarcinoma, Pain, Acute, Gastrointestinal Cancers, Demoralization
Interventions
Ketamine, Ketamine Injectable Product, Meaning and Purpose therapy, Placebo, Questionnaires
Drug · Behavioral · Other
Lead sponsor
Brian Anderson, MD
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Not applicable Interventional Results available

Evaluation of the Effectiveness of tDCS in the Management of Perioperative Pain

NCT01861587
View directory record Official record
Conditions
Post-Operative Pain
Interventions
tDCS
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 75 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 7, 2018 · Synced Oct 25, 2026, 9:01 PM EDT
Not listed No phase listed Observational

G-Tech Feasibility Study for Early Detection of a Post-op Ileus

NCT02673671
View directory record Official record
Conditions
Post-operative Ileus
Interventions
G-Tech Myoelectric recording device
Device
Lead sponsor
G-Tech Corporation
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Mountain View, California
Source: ClinicalTrials.gov public record
Updated Jan 20, 2023 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Isocaloric Dietary Interventions for Insulin Resistance and the Metabolic Syndrome

NCT01040663
View directory record Official record
Conditions
Obesity
Interventions
Dietary intervention
Other
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 65 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 10, 2013 · Synced Oct 25, 2026, 9:01 PM EDT
Completed Not applicable Interventional Results available

Anticoagulation With Enhanced Gastrointestinal Safety

NCT05563714
View directory record Official record
Conditions
Upper Gastrointestinal Bleeding, Peptic Ulcer Hemorrhage, Anticoagulant-induced Bleeding
Interventions
Clinician Notification with Nurse Facilitation (CNNF), Wait list control
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
341 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 30, 2024 · Synced Oct 25, 2026, 9:01 PM EDT
Active, not recruiting No phase listed Observational

Surveillance Colonoscopy in Older Adults: The SurvOlderAdults Study

NCT05994482
View directory record Official record
Conditions
Colorectal Cancer
Interventions
adenoma vs no adenoma, colonoscopy vs no colonoscopy, survey and expert panel
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
75 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
2
States / cities
San Diego, California • West Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 25, 2026, 9:01 PM EDT