Cure My Disease

Don't miss your cure!

 Log in / Sign up

Brain fog after COVID: could a kitchen oil be the answer?

NCT ID NCT05705648

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

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 17, 2026 · Last updated Jul 17, 2026

Summary

This trial tests whether a daily dose of medium chain triglyceride oil can ease brain fog in adults aged 22–50 with long COVID. Participants take either the active oil or a placebo (safflower oil) for several weeks and complete computer-based cognitive tests and questionnaires. The study aims to see if the oil improves thinking and memory complaints that persist after a COVID infection.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
medium chain triglyceride oil
What this could lead to
If it works, this could point toward a simple dietary supplement to help clear brain fog in people with long COVID.
What could go wrong
This is a small, early-stage trial with no blinding, so results may be due to placebo effects. The supplement may have no benefit over the control oil.

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

103 people

The number who actually took part.

Started

Oct 2023

Expected to finish

Mar 2027

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

22 to 50 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * confirmed COVID infection, at least 3 months previously, with ongoing cognitive complaints * all other medical conditions stable, and on stable doses of medications (if required) Exclusion Criteria: * COVID infection not confirmed by PCR or Rapid test * unable to speak English * pre-COVID cognitve complaints, and/or medical diagnoses affecting cognitive function

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Long COVID are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

Confusion long COVID-19 Memory Disorders Mental Fatigue

As listed by the trial registrant

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

Long COVID

Contacts and locations

Locations

  • University of Alberta

    Edmonton, Alberta, T6G 2P4, Canada

More trials for these conditions

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