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Showing 1–22 of 22 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Stable Isotope Infusion study Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Chronic Obstructive Pulmonary Disorder and Acute Exercise

NCT02780219
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
stable amino acid infusion, acute exercise with amino acid infusion, 24-hour post exercise amino acid infusion
Other
Lead sponsor
Texas A&M University
Other
Eligibility
45 Years and older
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Feb 2, 2025 · Synced Sep 3, 2026, 7:05 PM 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 2, 2023 · Synced Sep 3, 2026, 7:05 PM 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Withdrawn Not applicable Interventional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 12, 2017 · Synced Sep 3, 2026, 7:05 PM 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 29, 2025 · Synced Sep 3, 2026, 7:05 PM 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 – 2026
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Sep 3, 2026, 7:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Arginine Metabolism in Youth With Type 2 Diabetes

NCT05477134
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Stable isotope infusion, oral glucose ingestion, intravenous arginine bolus
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
12 Years to 20 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 3, 2026, 7:05 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Transplacental Gradients and Transport in Intrauterine Growth Restricted (IUGR) Pregnancies Compared to Normal Pregnancies.

NCT02397291
View directory record Official record
Conditions
IUGR, Pregnancy
Interventions
Mannose, Myoinositol, Placebo
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2016
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 10, 2021 · Synced Sep 3, 2026, 7:05 PM EDT
Completed Phase 1 Interventional

Pancreatic Clamp in NAFLD

NCT05724134
View directory record Official record
Conditions
Insulin Resistance, Prediabetic State, Hyperinsulinemia, Non-Alcoholic Fatty Liver Disease, Obesity
Interventions
Insulin human, Octreotide Acetate, Glucagon, Growth Hormone, Human, [6,6-2H2] D-glucose, 20% D-glucose (aq), BOOST Plus, CORE Bar, Harvard Apparatus PHD ULTRA CP syringe pump, Yellow Springs Instruments (YSI) 2500 Biochemistry Glucose/Lactate Analyzer
Drug · Other · Dietary Supplement + 1 more
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Sep 3, 2026, 7:05 PM 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 29, 2025 · Synced Sep 3, 2026, 7:05 PM 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 29, 2025 · Synced Sep 3, 2026, 7:05 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

The Effect of Acute Lysine Administration on α-aminoadipic Acid (Sub-study)

NCT03063476
View directory record Official record
Conditions
Healthy
Interventions
C-13 labeled Lysine, Normal saline
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 18, 2018 · Synced Sep 3, 2026, 7:05 PM 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 22, 2026 · Synced Sep 3, 2026, 7:05 PM 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 24, 2026 · Synced Sep 3, 2026, 7:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CHF COPD Sip Feed Anabolic Response

NCT02770092
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive, Congestive Heart Failure
Interventions
sip feeding with stable isotope infusion
Other
Lead sponsor
Texas A&M University
Other
Eligibility
45 Years and older
Enrollment
90 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 Sep 3, 2026, 7:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Method To Measure Protein Digestion & Absorption

NCT02065141
View directory record Official record
Conditions
Chronic Heart Failure, Pulmonary Disorder, Chronic Obstructive
Interventions
sip feeding with stable isotope infusion
Other
Lead sponsor
Texas A&M University
Other
Eligibility
20 Years and older
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Feb 6, 2022 · Synced Sep 3, 2026, 7:05 PM 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 May 31, 2020 · Synced Sep 3, 2026, 7:05 PM 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 3, 2022 · Synced Sep 3, 2026, 7:05 PM EDT
Not yet recruiting Phase 1 Interventional

Human Models of Selective Insulin Resistance: Pancreatic Clamp

NCT06558422
View directory record Official record
Conditions
Insulin Resistance, Hyperinsulinemia, Metabolic Dysfunction Associated Steatotic Liver Disease, Non-Alcoholic Fatty Liver Disease, Prediabetic State, Obesity
Interventions
Insulin human, Octreotide Acetate, Glucagon, Growth Hormone, Human, 20% D-glucose (aq), [6,6-2H2] D-glucose, [1-13C1] sodium acetate, Nestle BOOST Plus, KIND Bar, Harvard Apparatus PHD ULTRA CP syringe pump, Yellow Springs Instruments (YSI) 2500 Biochemistry Glucose/Lactate Analyzer
Drug · Diagnostic Test · Dietary Supplement + 1 more
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2029
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Sep 3, 2026, 7:05 PM 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 28, 2019 · Synced Sep 3, 2026, 7:05 PM EDT
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 2, 2022 · Synced Sep 3, 2026, 7:05 PM 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 21, 2018 · Synced Sep 3, 2026, 7:05 PM 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 9, 2024 · Synced Sep 3, 2026, 7:05 PM EDT