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Showing 25–44 of 20 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Carbohydrate Intolerance Clear all
Completed Phase 2Phase 3 Interventional

Efficacy, Safety, and Tolerability Study of RP-G28 in Subjects With Lactose Intolerance

NCT02673749
View directory record Official record
Conditions
Lactose Intolerance
Interventions
RP-G28, Placebo
Drug · Other
Lead sponsor
Ritter Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
377 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 3, 2018 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Raw Versus Other Milk Sources on Lactose Digestion

NCT01129791
View directory record Official record
Conditions
Lactose Intolerance
Interventions
Raw Milk, Pasteurized Milk, Non-dairy milk
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Oral Fructanase Administration on Gastrointestinal Symptoms After Inulin Challenge in Healthy Adults

NCT06628869
View directory record Official record
Conditions
Digestive Health, Gastrointestinal Health, FODMAP Intolerance, Food Sensitivity
Interventions
Fructanase, Maltodextrin placebo
Dietary Supplement
Lead sponsor
BIO-CAT, Inc.
Industry
Eligibility
20 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Jul 22, 2026, 10:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Prevalence of Carbohydrate Intolerance in Lean and Overweight/Obese Children

NCT01967849
View directory record Official record
Conditions
Obesity, Type 2 Diabetes
Interventions
Oral Glucose tolerance test
Diagnostic Test
Lead sponsor
Yale University
Other
Eligibility
7 Years to 21 Years
Enrollment
2,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Jul 22, 2026, 10:14 AM EDT
Recruiting Not applicable Interventional

Milk for Diabetes Prevention

NCT06513026
View directory record Official record
Conditions
Lactose Intolerance, Lactose Intolerant, Lactase Persistence, Pre-Diabetes, Diabetes Mellitus, Type 2
Interventions
Lactose-Containing Milk, Lactose-Free Milk
Dietary Supplement
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Jul 22, 2026, 10:14 AM EDT
Not listed Not applicable Interventional

Impact of Two Dietary Interventions on Simple Carbohydrate Intolerance

NCT06057376
View directory record Official record
Conditions
Carbohydrate Intolerance
Interventions
Low-FODMAP diet group (LFD), Low Sugar diet group (LAS)
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
5 Years to 18 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Springfield, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 1, 2024 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Not applicable Interventional

Effects of Lean Pork, High Protein Breakfast on Satiety and Metabolic Health in Pre-diabetes

NCT02934425
View directory record Official record
Conditions
Pre-diabetes
Interventions
Refined carbohydrate-rich breakfast, High pork protein breakfast
Other
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
18 Years to 74 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 14, 2018 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Not applicable Interventional Results available

Continuous Glucose Monitoring (CGM) With a Low Carbohydrate Diet to Reduce Weight in Patients With Pre-Diabetes

NCT03695913
View directory record Official record
Conditions
Pre-diabetes
Interventions
Normal Diet, Low carb diet, CGM with no real time feedback, CGM with real time feedback), Education material
Other · Device · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
21 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Livonia, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 15, 2020 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diabetes Prevention Program Pilot Study

NCT00729079
View directory record Official record
Conditions
Diabetes Prevention
Interventions
DPP
Behavioral
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 90 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
2
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Oct 11, 2015 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigation of the Ability of a Supplement to Increase Good Bacteria in the Human Intestine and Blood Sugar Levels

NCT01944904
View directory record Official record
Conditions
Pre-diabetic
Interventions
Sugar Pill, XOS 2.8
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
20 Years to 70 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 28, 2017 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

NAET® Testing Devices in Detection of Hypersensitivity to Cane Sugar

NCT00292578
View directory record Official record
Conditions
Allergy, Fatigue, Hypoglycemia, Hyperglycemia, Indigestion
Interventions
NAET Testing Modalities
Procedure
Lead sponsor
Nambudripad's Allergy Research Foundation
Other
Eligibility
22 Years to 70 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Buena Park, California
Source: ClinicalTrials.gov public record
Updated Oct 16, 2008 · Synced Jul 22, 2026, 10:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Association Between Lactase Deficiency, and the Small Intestinal Microbiome in Adults.

NCT03860051
View directory record Official record
Conditions
Lactose Intolerance
Interventions
Not listed
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 75 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 5, 2024 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Not applicable Interventional

Effects of Branch Chain Amino Acids on Glucose Tolerance in Obese Pre-Diabetic Subjects

NCT02684565
View directory record Official record
Conditions
Prediabetic State
Interventions
BCAA High Protein supplement, BCAA Low Protein supplement
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
20 Years to 50 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 11, 2018 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Phase 2 Interventional

Effectiveness, Safety and Tolerability Study of RP-G28 for Symptoms Associated With Lactose Intolerance

NCT01113619
View directory record Official record
Conditions
Lactose Intolerance
Interventions
RP-G28 or placebo
Drug
Lead sponsor
Ritter Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
2
States / cities
Honolulu, Hawaii • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 7, 2011 · Synced Jul 22, 2026, 10:14 AM EDT
Not yet recruiting Not applicable Interventional

Diabetes Prevention by Group Intervention and CGM Use in Pre-diabetic Adults

NCT07543068
View directory record Official record
Conditions
Pre Diabetic, Hyperglycaemia (Non Diabetic)
Interventions
Combines group sessions and CGM-based behavioral feedback
Other
Lead sponsor
Sam Houston State University
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
2
States / cities
Conroe, Texas
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Jul 22, 2026, 10:14 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Sugar Challenge Study

NCT04621656
View directory record Official record
Conditions
Type 2 Diabetes, Pre-Diabetes, Healthy
Interventions
January Mobile Application (Sugar AI)
Combination Product
Lead sponsor
January, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
1,022 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Menlo Park, California
Source: ClinicalTrials.gov public record
Updated Nov 8, 2020 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Roflumilast on Insulin and Blood Sugar Levels in Prediabetic Overweight and Obese Individuals

NCT01862029
View directory record Official record
Conditions
Obesity
Interventions
Roflumilast
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
30 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 3, 2018 · Synced Jul 22, 2026, 10:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of a Standard Meal on the Pharmacokinetic Profile of RP-G28 in Healthy Adult Male and Female Subjects

NCT03563846
View directory record Official record
Conditions
Lactose Intolerance
Interventions
RP-G28
Drug
Lead sponsor
Ritter Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 7, 2018 · Synced Jul 22, 2026, 10:14 AM EDT
Recruiting Not applicable Interventional

Effects of Whole-body Electrical Muscle Stimulation Exercise on Adults With Neuromuscular Disease

NCT07478172
View directory record Official record
Conditions
Neuromuscular Diseases (NMD), Amyotrophic Lateral Sclerosis, Myasthenia Gravis, Lambert-eaton Myasthenic Syndrome, Primary Lateral Sclerosis, Spinal Muscular Atrophy, Charcot Marie Tooth Disease (CMT), Fascioscapulohumeral Muscular Dystrophy, Inclusion Body Myositis, Mitochondrial Myopathy, Nemaline Myopathy, Centronuclear Myopathy, Postpolio Syndrome, Pompe Disease (Late-onset), Chronic Inflammatory Demyelinating Polyneuropathy, Hereditary Spastic Paraplegia, Postural Orthostatic Tachycardia Syndrome (POTS), Progressive Muscular Atrophy
Interventions
Whole-body Electrical Muscle Stimulation Exercise
Device
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Jul 22, 2026, 10:14 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Study of Post-meal Blood Sugar Peaks in Association With Vascular Disease in Childhood Obesity

NCT00846521
View directory record Official record
Conditions
Pediatric Obesity, Insulin Resistance, Impaired Glucose Tolerance, Cardiovascular Disease
Interventions
Acarbose
Drug
Lead sponsor
Yale University
Other
Eligibility
12 Years to 25 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 30, 2013 · Synced Jul 22, 2026, 10:14 AM EDT