MedTrace Logo

Measurements of Water in Breath and Saliva

NCT03233256 · Status: ENROLLING_BY_INVITATION · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2025-12-19

No results posted yet for this study

Summary

This study proposes to demonstrate the feasibility of measuring 2H:1H and 18O:16O in saliva and breath by comparing the natural abundances of 2H:1H and 18O:16O in saliva and urine of un-dosed humans.

Conditions

  • Human Energy Expenditure

Interventions

PROCEDURE

Feasibility of measuring 2H:1H and 18O:16O in saliva and breath.

The investigators propose to demonstrate the feasibility of measuring 2H:1H and 18O:16O in saliva and breath. The natural abundances of 2H:1H and 18O:16O of urine, saliva, and breath samples will be determined from samples obtained simultaneously from 50 relatively healthy human subjects. We will also measure 2H:1H and 18O:16O enrichments in urine, saliva, and breath of 10 relatively healthy human subjects obtained after consuming a standard DLW dose and compare the estimates of TDEE using these different matrices.

Sponsors & Collaborators

  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

    collaborator NIH

  • University of Colorado, Denver

    lead OTHER

Principal Investigators

  • Edward L Melanson, PhD · University of Colorado, Denver

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2018-02-27
Primary Completion
2026-12-31
Completion
2026-12-31

Countries

  • United States

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03233256 on ClinicalTrials.gov