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Completed Not applicable Interventional Accepts healthy volunteers

The Microbiome and Resilience to Sleep and Circadian Disruption

ClinicalTrials.gov ID: NCT03747367

Public ClinicalTrials.gov record NCT03747367. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 8, 2026, 6:22 PM EDT

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

Official title

The Microbiome and Responsiveness to Stress: Countermeasure Strategies for Improving Resilience to Sleep and Circadian Disruption (Experiments 1 & 2)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study is about how sleep loss and being awake at night impacts the ability to think, changes molecules in the blood, and alters the bacteria that live in the gut that typically help keep people healthy. This work will have important implications for the development of treatments and countermeasures for people who do not sleep enough and need to be active at different times of the day and night (e.g., emergency workers and military personnel).

Study identification

NCT ID
NCT03747367
Recruitment status
Completed
Study type
Interventional
Phase
Not applicable
Enrollment
55 participants

Conditions and interventions

Interventions

Behavioral · Dietary Supplement

Eligibility (public fields only)

Age range
18 Years to 45 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 20, 2015
Primary completion
Mar 11, 2020
Completion
Mar 15, 2020
Last update posted
Jun 16, 2026

2015 – 2020

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Sleep and Chronobiology Laboratory Boulder Colorado 80309-0554

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03747367, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 16, 2026 · Synced Sep 8, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03747367 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →