Veterans study: does poor sleep worsen long COVID brain fog?
NCT ID NCT06291870
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how sleep issues and sleep apnea might affect thinking, memory, and daily life in people who had COVID-19. Researchers will follow 200 veterans for up to a year, testing their brain function, sleep quality, and exercise ability. The goal is to find out if treating sleep problems can help improve long COVID symptoms.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2023
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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A government agency
The lead sponsor is a US federal agency other than the NIH.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
The investigators will include all individuals 18 years or older, both genders, all racial and ethnic groups, with diagnosis of COVID-19 infection, diagnosed using any validated antigen detection test and/or polymerase chain reaction (PCR) test and of any severity level of COVID. Eligible patients with COVID-19 history of infection should be at least 1 month after the diagnosis of COVID-19 and should have been discharged to home if admitted to an acute care facility. COVID-19 antigen test positive patients who were completely asymptomatic at the time of COVID positive testing will be excluded. Controls will be patients without history of COVID-19 infection and age 18 years or older. In addition, patients with OSA (apnea hypopnea index = of 5/hour on polysomnography) with history of COVID-19 infection will be eligible for Aim 2.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * All individuals 18 years or older, with prior history of COVID-19 infection diagnosis * Both genders including all racial and ethnic groups * Patients with OSA (apnea hypopnea index of 5/hour on polysomnography) with history of COVID-19 infection will be eligible with prior history of COVID-19 infection and without COVID-19 for Aim 2 Exclusion Criteria: * Inability to give consent * Active suicidal symptoms * Children of all ages * Pregnant women
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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John D. Dingell VA Medical Center, Detroit, MI
RECRUITINGDetroit, Michigan, 48201-1916, United States
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