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Showing 1–24 of 65 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Meal Challenge Clear all
Completed Not applicable Interventional

Chronobiology of Meal Timing: Effects on Vascular and Renal Function

NCT05987566
View directory record Official record
Conditions
Hypertension
Interventions
Morning meal challenge, Evening meal challenge
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 45 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional

Evaluation of Fats on Postprandial Glucose Control

NCT01869790
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Different fat types
Other
Lead sponsor
Joslin Diabetes Center
Other
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 25, 2017 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional Results available

Role of Glucagon-Like Peptide-1 in Postprandial Hypoglycemia

NCT01162499
View directory record Official record
Conditions
Postprandial Hypoglycemia
Interventions
Exendin-(9-39), Vehicle
Drug · Other
Lead sponsor
Diva De Leon
Other
Eligibility
6 Months to 18 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 22, 2017 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Mixed Meal Challenge Study

NCT05087823
View directory record Official record
Conditions
Cardiovascular Diseases, Hyperlipidemias
Interventions
Lipid Challenge, Glucose Challenge, Mixed Meal Challenge
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
18 Years to 50 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 30, 2023 · Synced Sep 1, 2026, 11:22 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Physiological Chronobiome Modified by Age, Sex and Under Evoked Conditions

NCT04225442
View directory record Official record
Conditions
Healthy, Healthy Aging
Interventions
Fatty meal to challenge the physiological chronobiome in healthy young and old
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 75 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Sep 1, 2026, 11:22 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Phenylketonuria, Oxidative Stress, and BH4

NCT01395394
View directory record Official record
Conditions
Phenylketonuria
Interventions
Kuvan, Meal Challenge
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
10 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 27, 2014 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Investigation Into a 21-Day Detoxification Diet With a Seven-Day Continuation

NCT05858476
View directory record Official record
Conditions
Detoxification
Interventions
21-Day Detox and Green Drink supplement
Other
Lead sponsor
Chef V, LLC
Industry
Eligibility
31 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated May 14, 2023 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional

EMPOWER Rural Extension Weight Management Pilot Study

NCT05587790
View directory record Official record
Conditions
Obesity, Overweight, Weight Loss
Interventions
Weight Management Intervention
Behavioral
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
3
States / cities
Freeport, Illinois • Hillsboro, Illinois • Marshall, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional

M-POWER Feasibility Study

NCT05921565
View directory record Official record
Conditions
Weight Reduction, Adherence, Patient
Interventions
Interventional Behavioral Arm
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 84 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Early Phase 1 Interventional

Controlled Insulin Delivery: Combining Technology With Treatment

NCT01484457
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Closed-loop session
Device
Lead sponsor
Sansum Diabetes Research Institute
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Santa Barbara, California
Source: ClinicalTrials.gov public record
Updated Mar 22, 2021 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional Results available

Hypoglycemia Prevention After Exercise in Adolescent T1DM Patients Using a Control to Range System

NCT01390259
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
Open-Loop, Closed-Loop
Device
Lead sponsor
University of Virginia
Other
Eligibility
12 Years to 18 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 14, 2014 · Synced Sep 1, 2026, 11:22 PM EDT
Completed No phase listed Observational

Effects of URI on Diabetic Subjects Utilizing Technosphere Insulin After a Meal Challenge

NCT00642681
View directory record Official record
Conditions
Diabetes Mellitus, Upper Respiratory Infection
Interventions
Technosphere Insulin
Drug
Lead sponsor
Mannkind Corporation
Industry
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
15
States / cities
Tuscon, Arizona • Fresno, California • Huntington Beach, California + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Sep 1, 2026, 11:22 PM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Alpelisib Challenge Test (ACT)

NCT07778524
View directory record Official record
Conditions
Insulin Resistance, Type 2 Diabetes, Obesity & Overweight, Healthy Adult Participants
Interventions
Alpelisib 300 mg, Alpelisib Challenge Test (ACT): Mixed Meal Tolerance Test (MMTT) after taking alpelisib, Hyperglycemic clamp
Drug · Diagnostic Test
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 1, 2026, 11:22 PM EDT
Active, not recruiting Early Phase 1 Interventional

Multi-Center Development of a Novel Diagnostic Test for Alzheimer's Disease

NCT03560960
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
Pramlintide challenge test
Drug
Lead sponsor
Boston University
Other
Eligibility
60 Years to 90 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
3
States / cities
Indianapolis, Indiana • Boston, Massachusetts • Jamaica Plain, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Antioxidant Responses to Exercise and Cherry Consumption

NCT03522779
View directory record Official record
Conditions
Dietary Modification
Interventions
Tart cherry Juice, High-fat meal, Exercise
Dietary Supplement · Other
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated May 10, 2018 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Building Undergraduate Coping & Knowledge for Stress-Resilience

NCT06885320
View directory record Official record
Conditions
Alcohol Use, College Drinking, Anxiety
Interventions
IMPROVE, HET
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Sep 1, 2026, 11:22 PM EDT
Recruiting Not applicable Interventional

Continuous Glucose Metrics in Patients With Gastroparesis in Type 1 or Type 2 Diabetes

NCT06046833
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Diabetes Mellitus, Type 1, Gastroparesis With Diabetes Mellitus
Interventions
FreeStyle Libre 3 continuous glucose monitoring sensor, Nutritional drink
Device · Other
Lead sponsor
Samita Garg
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional Results available

Evaluation of The Postprandial Impact of Automated Priming Bolus for Full Closed Loop Insulin Delivery

NCT05528770
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
FCL+BPS, FCL
Device
Lead sponsor
Marc Breton
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 7, 2025 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

SWITCH Diets Study: Self-monitoring With Internet Technology to Choose Healthy Diets

NCT06245369
View directory record Official record
Conditions
Overweight and Obesity, Pre-diabetes
Interventions
learning modules (within app), SWITCH app (self-regulation features) - Experimental, SWITCH app (self-regulation features) - Comparator
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

BestFIT: a Personalized Weight Loss Program

NCT02368002
View directory record Official record
Conditions
Obesity
Interventions
Behavioral weight loss therapy, Portion-controlled meals, Acceptance-based treatment
Behavioral
Lead sponsor
HealthPartners Institute
Other
Eligibility
21 Years to 70 Years
Enrollment
468 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Bloomington, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 2, 2021 · Synced Sep 1, 2026, 11:22 PM EDT
Recruiting Not applicable Interventional

Appetite Response to Meals With Different Protein Sources in Women With PCOS

NCT07142603
View directory record Official record
Conditions
Polycystic Ovary Syndrome (PCOS)
Interventions
Metabolic response to protein source
Other
Lead sponsor
University of Arkansas, Fayetteville
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Fayetteville, Arkansas
Source: ClinicalTrials.gov public record
Updated Sep 1, 2025 · Synced Sep 1, 2026, 11:22 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Mapping the Shift Worker's Microbiome

NCT03221517
View directory record Official record
Conditions
Healthy
Interventions
Standardized meal with a glucose challenge test
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
40 Years to 59 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Sep 1, 2026, 11:22 PM EDT
Completed Not applicable Interventional

A Study of an Automated Insulin Delivery System in Adult Participants With Type 1 Diabetes Mellitus During Meal Challenges

NCT03848767
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
AID System, Insulin Lispro
Device · Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Renton, Washington
Source: ClinicalTrials.gov public record
Updated Apr 22, 2019 · Synced Sep 1, 2026, 11:22 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Gut Microbiota Post Roux-en-Y Gastric Bypass Surgery

NCT02654496
View directory record Official record
Conditions
Obesity
Interventions
Meal challenge
Other
Lead sponsor
North Dakota State University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 22, 2018 · Synced Sep 1, 2026, 11:22 PM EDT