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ClinicalTrials.gov public records Last synced Oct 25, 2026, 12:34 AM EDT

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Showing 1–24 of 36 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Stable isotope infusions Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

In Vivo Assessment of Cellular Metabolism in Humans

NCT02748369
View directory record Official record
Conditions
Normal Cellular Metabolism
Interventions
Somatostatin, Glucagon
Drug
Lead sponsor
K. Sreekumaran Nair
Other
Eligibility
18 Years to 45 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 3, 2022 · Synced Oct 25, 2026, 12:34 AM EDT
Active, not recruiting Phase 1 Interventional

Physiologic Markers of Cardiometabolic Risk in People With Type 1 Diabetes

NCT06105931
View directory record Official record
Conditions
type1diabetes, Obesity
Interventions
Hyperinsulinemic-euglycemic clamp, High Fat Mixed Meal Tolerance Test
Biological · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 30 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Metabolic Processes in Adults and Adolescents With Autism Spectrum Disorder

NCT02733120
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
stable isotope infusion
Other
Lead sponsor
Texas A&M University
Other
Eligibility
16 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 25, 2026, 12:34 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

In Vivo Assessment of Glutamine Utilization by Bone Marrow Plasma Cells

NCT03384108
View directory record Official record
Conditions
Healthy
Interventions
5-13C-Glutamine, Bone marrow aspiration
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 25, 2026 · Synced Oct 25, 2026, 12:34 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Anabolic Response Cancer

NCT02793531
View directory record Official record
Conditions
Cancer
Interventions
Stable isotope amino acid infusion
Other
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Mar 22, 2018 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

AECOPD and Nutritional Supplementation in COPD

NCT06801964
View directory record Official record
Conditions
Obstructive Pulmonary Disease, Exacerbation Copd
Interventions
Stable isotope infusion, Protein and Fish Oil, Protein and Olive Oil, Carbohydrate and Olive Oil
Other · Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
45 Years and older
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Jan 30, 2025 · Synced Oct 25, 2026, 12:34 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Lipoprotein Kinetics in T1D

NCT05179954
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Metabolic testing
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 45 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Vitamin B6 Effects for Women Taking Birth Control Pills

NCT01128244
View directory record Official record
Conditions
Vitamin B6 Deficiency
Interventions
Vitamin B6, Infusion of labeled serine, methionine and leucine
Dietary Supplement · Procedure
Lead sponsor
University of Florida
Other
Eligibility
20 Years to 40 Years · Female only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 7, 2017 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Assessment of Mechanisms of Improved Wound Healing

NCT00673309
View directory record Official record
Conditions
Burns
Interventions
Stable Isotope Infusion study, Insulin High Dose, oxandrolone, Propranolol, Growth Hormone, Insulin Low Dose, IGF-1/IGFBP-3, Itraconazole, Growth Hormone and Propranolol, Oxandrolone and Propranolol, Placebo or Control
Procedure · Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
Up to 90 Years
Enrollment
644 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2013
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 3, 2023 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Not applicable Interventional

Cholesterol and Statin in Healthy Adults

NCT02908425
View directory record Official record
Conditions
Elevated HMB Excretion
Interventions
Statin user
Other
Lead sponsor
Texas A&M University
Other
Eligibility
65 Years to 80 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nitric Oxide Flux and Ureagenesis in Argininosuccinate Synthetase Deficiency (ASSD)(Citrullinemia I)

NCT01610089
View directory record Official record
Conditions
Citrullinemia
Interventions
stable isotope infusion
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 20, 2015 · Synced Oct 25, 2026, 12:34 AM EDT
Terminated Phase 2Phase 3 Interventional

Assessment of the Treatment of Severely Burned With Anabolic Agents on Clinical Outcomes, Recovery and Rehabilitation

NCT00675714
View directory record Official record
Conditions
Burns
Interventions
Stable Isotope Infusion Study, Collection of blood and tissues, Radiology testing: Dual-energy X-ray absorptiometry (DEXA), ultrasound, MRI, Humatrope, Ketoconazole, Oxandrolone, Propranolol, Oxandrolone and propranolol combined, Humatrope and propranolol combined, Placebo, Exercise--Hospital supervised intensive exercise program, Home exercise program
Procedure · Drug · Behavioral
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
Up to 80 Years
Enrollment
1,126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2019
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 29, 2019 · Synced Oct 25, 2026, 12:34 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Metabolic and Functional Consequences of Aging in Health and Disease

NCT05240885
View directory record Official record
Conditions
Aging
Interventions
Stable tracer infusion in a postabsorptive state
Other
Lead sponsor
Texas A&M University
Other
Eligibility
50 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 25, 2026, 12:34 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Muscle Protein Synthesis in Dialysis Patients

NCT03478722
View directory record Official record
Conditions
Muscle Loss
Interventions
Protein Meal, Stable Isotope Amino Acid Infusion
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
20 Years to 80 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated May 1, 2018 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Not applicable Interventional Results available

Collaborative Research Group for Necrotizing Enterocolitis

NCT00828451
View directory record Official record
Conditions
Prematurity, Necrotizing Enterocolitis
Interventions
[5,5,5-2H3]leucine (stable isotope labeled leucine)
Biological
Lead sponsor
Washington University School of Medicine
Other
Eligibility
1 Day to 7 Days
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Oct 25, 2026, 12:34 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Diet Synergy in Muscle Protein Synthesis

NCT07367854
View directory record Official record
Conditions
Muscle Protein Synthetic Response to Protein, Muscle Protein Synthesis, Muscle Health, Protein Metabolism, Recreational Activities, Isotope Labeling
Interventions
Resistance Exercise, Potato and Beef, Bread and Beef, Beef
Behavioral · Dietary Supplement
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
19 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 25, 2026, 12:34 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Quantification of Human Adipogenesis

NCT01257997
View directory record Official record
Conditions
Healthy
Interventions
15N-Thymidine, 2H-Water
Biological
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 49 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 29, 2018 · Synced Oct 25, 2026, 12:34 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Use of Labeled Glucose to Study Lymphocyte Replication and Survival in HIV-Infected Patients

NCT00001651
View directory record Official record
Conditions
HIV, Healthy Volunteers
Interventions
[6,6-2H2]-glucose
Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 1, 2020 · Synced Oct 25, 2026, 12:34 AM EDT
Withdrawn Phase 1 Interventional

Dexamethasone/Pancreatic Clamp P&F

NCT06126354
View directory record Official record
Conditions
Insulin Resistance, Prediabetic State, Non-Alcoholic Fatty Liver Disease, Overweight and Obesity
Interventions
Insulin human, Octreotide Acetate, Glucagon, Human Growth Hormone, Dexamethasone Oral, [6,6-2H2] D-glucose, 20% D-glucose (aq), BOOST Plus, Harvard Apparatus PHD ULTRA CP syringe pump, Yellow Springs Instruments (YSI) 2500 Biochemistry Glucose/Lactate Analyzer, Normal saline, Human albumin
Drug · Other · Dietary Supplement + 1 more
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 10, 2024 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Abscisic Acid Effects on Glucose Homeostasis and Insulin Sensitivity

NCT04722354
View directory record Official record
Conditions
Pre Diabetes
Interventions
Hyperinsulemic euglycemic clamp, Muscle Biopsy, Oral abscisic acid (ABA), Placebo
Other · Procedure · Dietary Supplement
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Not applicable Interventional

Protein Metabolism in Newly Diagnosed Pediatric Inflammatory Bowel Disease

NCT00586352
View directory record Official record
Conditions
Crohn's Disease, Ulcerative Colitis, Protein Metabolism
Interventions
stable isotope infusions
Other
Lead sponsor
Indiana University
Other
Eligibility
6 Years to 18 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 2, 2016 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Omics Profiling of Weight Loss With Bariatric Surgery

NCT02757638
View directory record Official record
Conditions
Obesity, Surgery
Interventions
Stable isotope infusion
Other
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 25, 2026, 12:34 AM EDT
Withdrawn Not applicable Interventional

Study of Glutamate and Glutamine Metabolism in Burn Patients Receiving Enteral or Parenteral Nutrition

NCT00181753
View directory record Official record
Conditions
Burns
Interventions
standard vs. glutamine enteral or parenteral feeding., Stable isotope tracer study, Stable isotope study
Drug · Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 13, 2017 · Synced Oct 25, 2026, 12:34 AM EDT
Completed Not applicable Interventional

Very Low Calorie Diet Weight Loss

NCT02780206
View directory record Official record
Conditions
Obesity, Very Low Calorie Diet
Interventions
Stable isotope amino acid infusion
Other
Lead sponsor
Texas A&M University
Other
Eligibility
30 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Feb 4, 2022 · Synced Oct 25, 2026, 12:34 AM EDT