Characterization of Fatigue in Military Personnel With Traumatic Brain Injuries
Public ClinicalTrials.gov record NCT03998358. 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.
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Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Background: People who have had a traumatic brain injury (TBI) often experience fatigue. Fatigue is the feeling tired all the time. Researchers want to learn more about how TBI and fatigue are related. Objective: To better understand fatigue after TBI in active duty military and veterans. Eligibility: Active duty service members or veterans ages 25-40 who have sustained at least 1 TBI more than 6 months but less than 5 years ago Design: Participants will be screened with: * Medical history * Physical exam * Blood and urine tests Participants will have Visit 1 the same day as screening. This will include questionnaires and interviews. These will be about their fatigue, quality of life, and health. Participants will wear an activity monitor on their wrist and complete a sleep diary for 7 days at home. Participants will have Visit 2: They will stay in the clinic for 2 nights. The visit will include: * Tests of memory, attention, and thinking * Placement of intravenous (IV) line: A needle will guide a thin plastic tube into the participant s arm vein. * 2 overnight sleeps tests: Participants brain waves will be recorded while they sleep. Small electrodes will be placed on the scalp. Monitors will be placed on the skin. These will measure breathing, heart rate, and movement. Blood will be drawn overnight through the IV line. * Optional hydrocortisone stimulation test: Participants will receive the hormone through the IV line. Blood will be drawn through the IV line 5 times over 1 hour. * Optional MRI: Participants will lie in a machine. This machine is a metal cylinder that takes pictures of the brain.
Study identification
- NCT ID
- NCT03998358
- Recruitment status
- Withdrawn
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- Not listed
Conditions and interventions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 25 Years to 40 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 19, 2021 (Actual)
- Primary completion
- Mar 19, 2021 (Actual)
- Completion
- Mar 19, 2021 (Actual)
- Last update posted
- Mar 25, 2021
2021
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center | Bethesda | Maryland | 20892 | — |
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 NCT03998358, 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 Mar 25, 2021 · Synced Nov 11, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT03998358 live on ClinicalTrials.gov.