Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 3, 2026, 6:23 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 49 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Indirect Calorimetry Clear all
Completed No phase listed Observational

Apolipoprotein E (ApoE) and Metabolism

NCT03109561
View directory record Official record
Conditions
Cognitive Function, Healthy
Interventions
Resting State Indirect Calorimetry, ApoE, Metabolism, Cognitive Challenge
Other · Genetic · Diagnostic Test
Lead sponsor
Lance Johnson
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Timeline
2018 – 2020
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 22, 2020 · Synced Sep 3, 2026, 6:23 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Effect of Hydration Status on Substrate Oxidation at Rest and During Light and Moderate Exercise

NCT07298863
View directory record Official record
Conditions
Hydration Status, Substrate Metabolism During Exercise
Interventions
Part 1 - Exercise Trial, Part 1 - Experimental Trial, Part 2 - Oral Glucose Tolerance Test
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
18 Years to 35 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Valhalla, New York
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 3, 2026, 6:23 AM EDT
Withdrawn Not applicable Interventional

Longitudinal Evaluation of Energy Expenditure in ICU Patients From Admission to Discharge Using A Novel Indirect Calorimeter: LEEP-Forward Trial

NCT04132700
View directory record Official record
Conditions
Metabolism Requirement, Energy Requirement, Indirect Calorimetry
Interventions
Q-NRG Metobolic Cart Device
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 20, 2021 · Synced Sep 3, 2026, 6:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Measuring Free-living Energy Expenditure Using Direct Calorimetry

NCT01454882
View directory record Official record
Conditions
Temperature, Clothing, Sex, Age, Adiposity
Interventions
Effects of Clothing, Effects of Temperature, Low Physical Activity, High Physical Activity, Direct calorimetry and doubly labeled water
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 10, 2016 · Synced Sep 3, 2026, 6:23 AM EDT
Terminated Not applicable Interventional

Resting Energy Expenditure in Patients With Cystic Fibrosis: A Pilot Study

NCT03699982
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Daily calorie target based on resting energy expenditure
Other
Lead sponsor
CAMC Health System
Other
Eligibility
6 Years to 99 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Charleston, West Virginia
Source: ClinicalTrials.gov public record
Updated Nov 17, 2024 · Synced Sep 3, 2026, 6:23 AM EDT
Completed Not applicable Interventional

Feasibility and Preliminary Efficacy of a Reverse Diet as a Novel Weight Loss Maintenance Strategy for Weight-Reduced Adults With Overweight/Obesity

NCT03560635
View directory record Official record
Conditions
Overweight and Obesity, Weight Loss Maintenance, Dietary Habits
Interventions
Weight Loss Maintenance (Control vs. Reverse Diet)
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Sep 3, 2026, 6:23 AM EDT
Recruiting No phase listed Observational

Metabolism Evaluation Through Resting Indirect Calorimetry in Bladder Cancer (METRICS)

NCT06721260
View directory record Official record
Conditions
Bladder Cancer
Interventions
Not listed
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 3, 2026, 6:23 AM EDT
Not listed Not applicable Interventional

Comparison of the Q-NRG+ Indirect Calorimetry Device Versus the V(Max) Encore Device in Mechanically Ventilated Children

NCT04482556
View directory record Official record
Conditions
Calorimetry, Indirect, Oxygen Consumption, Metabolism, Mechanical Ventilation
Interventions
Q-NRG+ Indirect Calorimetry Device, V(max) Encore Indirect Calorimetry Device
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
10 Years to 18 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 2, 2024 · Synced Sep 3, 2026, 6:23 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Gas Kinetics and Metabolism in Anesthesia During Non Steady State

NCT00225381
View directory record Official record
Conditions
Anesthetized Healthy Patients (ASA 1 or 2) in the Supine Position, Excluding Head, Neck and Head Surgeries, Anesthetized Patient With Severe Systemic Disease (ASA 3 or 4)
Interventions
connection of measuring device to anesthesia circuit, drawing of blood sample through an arterial line, placed according to clinical criteria by primary anesthesia team, changing operating room bed position (head down and up position), adding PEEP during anesthesia, placement of esophageal Doppler for cardiac output measurements, Humidity sensor, A mixing chamber (bymixer), Pneumotachometer cuvette, Mass spectrometer sampling port
Device · Procedure
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2012
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Mar 22, 2021 · Synced Sep 3, 2026, 6:23 AM EDT
Recruiting Not applicable Interventional

Indirect Calorimetry-Guided Parenteral Nutrition Prescribing in Oncology Patients

NCT07776704
View directory record Official record
Conditions
Malnutitrion, Cancer
Interventions
Indirect Calorimeter, Weight-Based Parenteral Nutrition Dosing
Device · Dietary Supplement
Lead sponsor
Fox Chase Cancer Center
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 3, 2026, 6:23 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Determining Cell- and Spatially-distinct Skeletal Muscle Transcriptional Aberrations in Insulin Resistance

NCT07516509
View directory record Official record
Conditions
Insulin Resistance
Interventions
VO2 Max, DEXA, Peripheral Microvascular Reactivity, Skeletal Muscle Insulin Sensitivity, Non-Oxidative Glucose Disposal, Muscle tissue Biopsy
Other
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
30 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 3, 2026, 6:23 AM EDT
Completed Not applicable Interventional

Changes in Gut Hormones, Body Composition and Energy Expenditure After Roux-en-Y

NCT02048501
View directory record Official record
Conditions
Obesity, Weight Loss
Interventions
Resting Metabolic Rate (RMR), Duel-energy x-ray absorptiometry (DEXA), Visual Analog Scale (VAS), Meal Stimulation Test
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 25, 2017 · Synced Sep 3, 2026, 6:23 AM EDT
Recruiting Not applicable Interventional

Optimizing Recovery in Trauma Patients by Integrating Enhanced Nutrition Delivery

NCT06521086
View directory record Official record
Conditions
Trauma, Critical Illness
Interventions
Nutrition Supplements - Fresubin KCAL Drinks
Dietary Supplement
Lead sponsor
Duke University
Other
Eligibility
45 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 3, 2026, 6:23 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Mechanisms of Anabolic Resistance in Older Humans

NCT06617195
View directory record Official record
Conditions
Aging
Interventions
Exercise
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years to 85 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2030
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Sep 3, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Short-Term Effect of a Technology Driven Weight Control (SMART) Program for Obese Adults

NCT00624598
View directory record Official record
Conditions
Obesity, Hypertension
Interventions
SMART
Behavioral
Lead sponsor
Colorado Center for Chronic Care Innovations, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
2
States / cities
Westminster, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 16, 2008 · Synced Sep 3, 2026, 6:23 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Validation of a Portable Indirect Calorimeter

NCT04469452
View directory record Official record
Conditions
Human Energy Expenditure
Interventions
Apollo Device
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
19 Years to 99 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 3, 2023 · Synced Sep 3, 2026, 6:23 AM EDT
Withdrawn Not applicable Interventional

Metabolic Abnormalities in Hispanic Children With Cystic Fibrosis

NCT00287443
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Oral Glucose tolerance test, Whole body protein turnover, IV glucose tolerance test, Indirect Calorimetry, Dual Energy X-ray Absorptiometry (DEXA), Growth Hormone Stimulation Test
Procedure
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
7 Years to 17 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 25, 2018 · Synced Sep 3, 2026, 6:23 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Electrical Stimulation of Human Myocytes in Microgravity

NCT03665051
View directory record Official record
Conditions
Sarcopenia
Interventions
Muscle Tissue Biopsy, Maximal Oxygen Consumption (V02max)
Procedure · Other
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
20 Years to 80 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jun 10, 2025 · Synced Sep 3, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Energetic Response to Feeding and Exercise in SCI

NCT03545867
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Seated control (CON), Moderate intensity continuous (MICT), High intensity interval training (HIIT), Circuit resistance training (CRT), Liquid Meal
Behavioral · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 18, 2020 · Synced Sep 3, 2026, 6:23 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Exoskeleton Variability Optimization

NCT04338815
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Exoskeleton Optimization, Endurance Evaluation
Other
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 85 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 18, 2025 · Synced Sep 3, 2026, 6:23 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The SKyRoCKeT Study

NCT05770817
View directory record Official record
Conditions
Healthy
Interventions
N/A: SKyRoCKeT is an observational study
Other
Lead sponsor
University of North Carolina, Charlotte
Other
Eligibility
6 Years to 20 Years
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 3, 2026, 6:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Muscle OXPHOS and Nutrient Homeostasis

NCT02920671
View directory record Official record
Conditions
Mitochondrial Diseases, Obesity
Interventions
Tracer-enhanced oral glucose tolerance test (OGTT*), Muscle MRI, Dual energy x-ray absorptiometry (DXA), Questionnaires
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 2, 2024 · Synced Sep 3, 2026, 6:23 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Brain Health in Transgender Adults

NCT07624747
View directory record Official record
Conditions
Gender Dysphoria
Interventions
Magnetic Resonance Imaging, Cognition and Health Tests, Optional Exercise Test
Device · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 45 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 3, 2026, 6:23 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

CRAVE Study: Comparing Craving Responses and Diet Quality of GLP1 Receptor Agonist Users

NCT06467604
View directory record Official record
Conditions
Obesity
Interventions
Surveys, Indirect Calorimetry, Body composition, Anthropometrics
Behavioral · Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 70 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Needham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 3, 2026, 6:23 AM EDT