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Showing 25–40 of 16 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Substrate Metabolism Clear all
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study of ALXN1840 on the Metabolism of a CYP2B6 Substrate in Healthy Participants

NCT04526210
View directory record Official record
Conditions
Wilson Disease
Interventions
ALXN1840, Bupropion Hydrochloride
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Aug 30, 2023 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pre-workout Supplement Versus Caffeine on Energy Expenditure.

NCT04539054
View directory record Official record
Conditions
Healthy
Interventions
ENGN Shred, Nutricost caffeine powder, Crystal Light
Dietary Supplement
Lead sponsor
Northern Illinois University
Other
Eligibility
19 Years to 29 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
DeKalb, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 3, 2020 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fat Burning After a Meal

NCT02211599
View directory record Official record
Conditions
Postprandial Effect of Carbohydrate Beverage Consumption
Interventions
15% protein, 30% protein, Sweetened beverage
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Feb 1, 2022 · Synced Jun 26, 2026, 4:14 PM EDT
Recruiting No phase listed Observational

Cardiometabolic Disease and Substrate Metabolism

NCT07565727
View directory record Official record
Conditions
Preeclampsia, Gestational Diabetes Mellitus (GDM), Preeclampsia (PE), Preeclampsia (PE) Risk, Gestational Diabetes, Gestational Diabetes Mellitus in Pregnancy, Cardiometabolic Diseases, Insulin Resistance, Placental Dysfunction, Pregnancy, Pregnancy Complications, Gestational Complications
Interventions
Not listed
Lead sponsor
University of Tennessee Graduate School of Medicine
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Jun 26, 2026, 4:14 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Ketone Supplements and Substrate Oxidation and Physical Performance

NCT04737694
View directory record Official record
Conditions
Ketosis, Glucose Metabolism
Interventions
Ketone ester, Glucose
Dietary Supplement
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 39 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 13, 2021 · Synced Jun 26, 2026, 4:14 PM EDT
Withdrawn Phase 2 Interventional

Ph 2a Study of HU6 on Energy Metabolism, Muscle and Liver Substrate Metabolism, and Mitochondrial Function in Subjects Who Are Overweight or Obese With Type 2 Diabetes

NCT06104358
View directory record Official record
Conditions
Diabete Type 2, Obesity
Interventions
HU6
Drug
Lead sponsor
Rivus Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jan 8, 2024 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Breakfast Consumption and Energy Balance in Active Adult Males

NCT04862208
View directory record Official record
Conditions
Energy Intake, Substrate Utilization, Hormones, Satiety
Interventions
Maltodextrin supplement, Whey supplement, Water
Dietary Supplement
Lead sponsor
Ohio University
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Athens, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Phase 3 Interventional Results available

A Study of Eliglustat Tartrate (Genz-112638) in Patients With Gaucher Disease Who Have Reached Therapeutic Goals With Enzyme Replacement Therapy (ENCORE)

NCT00943111
View directory record Official record
Conditions
Gaucher Disease, Type 1
Interventions
Eliglustat tartrate, Imiglucerase
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
17
States / cities
Beverly Hills, California • San Francisco, California • Aurora, Colorado + 13 more
Source: ClinicalTrials.gov public record
Updated Nov 24, 2016 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Phase 1 Study of ALXN1840 on the Metabolism of a CYP2C9 Substrate in Healthy Participants.

NCT04526197
View directory record Official record
Conditions
Wilson Disease
Interventions
ALXN1840, Celecoxib
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Eating Beans on Metabolism

NCT06123208
View directory record Official record
Conditions
Overweight
Interventions
Whole cooked pinto bean, Pinto bean flour, Control
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
19 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sleep Restriction and Energy Expenditure

NCT01751581
View directory record Official record
Conditions
Obesity
Interventions
Short Sleep, Habitual sleep
Behavioral
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 1, 2013 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Energy Expenditure and Substrate Utilization During Acute Under- and Over-feeding

NCT01740765
View directory record Official record
Conditions
Obesity
Interventions
24-hour energy expenditure
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
50 Years to 65 Years · Female only
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 3, 2012 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Phase 3 Interventional Results available

A Study of Eliglustat Tartrate (Genz-112638) in Patients With Gaucher Disease (ENGAGE)

NCT00891202
View directory record Official record
Conditions
Gaucher Disease, Type 1
Interventions
Eliglustat tartrate, Placebo
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
16 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
6
States / cities
San Francisco, California • New Haven, Connecticut • Decatur, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2017 · Synced Jun 26, 2026, 4:14 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Energy Expenditure and Substrate Oxidation in a Whole Room Calorimeter

NCT04061369
View directory record Official record
Conditions
Overweight, Obesity, Body Weight
Interventions
Low fat meal, Moderate fat meal, High fat meal, High fat liquid meal
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated May 14, 2023 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Phase 4 Interventional Results available

A Study of Enzyme Replacement Therapy (VPRIV) in People With Type 1 Gaucher Disease Who Were Previously Treated With Substrate Reduction Therapy

NCT04718779
View directory record Official record
Conditions
Gaucher Disease
Interventions
Digital Engagement Application (GD App), No Intervention
Other
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 20, 2023 · Synced Jun 26, 2026, 4:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Substrate Oxidation in Children in Response to High and Low Dairy Intake

NCT01664702
View directory record Official record
Conditions
Childhood Obesity
Interventions
Dairy Products, Dairy Servings
Dietary Supplement
Lead sponsor
University of Kansas
Other
Eligibility
10 Years to 13 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Lawrence, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 13, 2012 · Synced Jun 26, 2026, 4:14 PM EDT