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Saline solution tested as brain fog fix for long COVID and POTS patients

NCT ID NCT05914649

Symptom relief Sponsor: University of Calgary Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether a large IV bag of saline (salt water) can improve thinking problems like brain fog in people with Long COVID or a condition called POTS. About 100 adults will receive either a full or tiny dose of saline to compare effects on reaction time and memory. The goal is to find a simple, safe way to ease cognitive 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.

Phase

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

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2024

Expected to finish

Dec 2030

An estimate. End dates often move.

Lead sponsor

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

18 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: * Patients with diagnosis of Long COVID * SARS-COV2 test positive * Symptoms \> 12 weeks post COVID * Subjective complaint of 'brain fog" or cognitive dysfunction * Patients with diagnosis of Postural Orthostatic Syndrome (POTS) from the Calgary Autonomic Investigation and Management Clinic * Subjective complaint of 'brain fog" or cognitive impairment * Healthy participants * Without POTS or "brain fog" * Age 18 to 60 years * Female and Male * Able to give an informed consent Exclusion Criteria: * Patients with overt causes for POTS (e.g., dehydration, prolonged bed rest) * An inability to safely withdraw from medicine(s) that could make test interpretation difficult and impossible. * Other factors which are in the investigator's opinion would prevent the participant from completing the protocol, including poor compliance during previous studies or an unpredictable schedule. * Unable to give an informed consent.

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Conditions

The condition(s) this trial relates to.

long COVID-19 Mental Fatigue postural orthostatic tachycardia syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Post acute sequelae of SARS CoV 2 infection Postural orthostatic tachycardia syndrome

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • University of Calgary

    RECRUITING

    Calgary, Alberta, T2N 4Z6, Canada

More trials for these conditions

Other studies related to the condition(s) this trial covers.