Q-Collar's brain blood flow effects under study in healthy volunteers
NCT ID NCT06826781
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the Q-Collar, a device already cleared by the FDA, changes brain blood flow in healthy adults during rest and exercise. Twenty participants aged 18 to 30 will do tasks like standing up quickly, breathing against resistance, and biking while their brain blood flow is measured. They will be tested both with and without the collar to see if it helps regulate blood flow.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2025
- Expected to finish
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Aug 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 30 years
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * healthy individuals between the ages of 18 to 30 years old Exclusion Criteria: * History of concussion or other brain injury resulting in loss or alteration in consciousness or other change in cognition within 24 months of study visit * High cardiac risk according to the American College of Sports Medicine (ACSM)11 * Ongoing active treatment with a cardioactive drug * Inability to stand from a seated position unassisted * History of a neurologic disorder or neurosurgery intervention * Pregnancy * Any current, serious, chronic medical or psychiatric disease that in the Principal Investigator's or co-investigator's judgment may interfere with study participation or data integrity * Unable or unwilling to provide informed consent
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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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Spaulding Rehabilitation Hospital
RECRUITINGCambridge, Massachusetts, 02138, United States
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