Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

Sniffing your way back: does scent therapy rebuild COVID-Shattered smell?

NCT ID NCT05384561

Disease control Sponsor: Université du Québec à Trois-Rivières 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 31, 2026 · Last updated Jul 31, 2026

Summary

This trial tests whether a 12-week smell training program can help people who lost their sense of smell after COVID-19. Participants will sniff four different scents twice daily, with one group using rose, orange, clove, and eucalyptus, and another using cheese, coffee, strawberries, and lemon. The study compares the two scent sets to see which, if any, leads to greater improvement in smell function and quality of life.

What this could mean

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

Active substance
Smell training with different odor sets
What this could lead to
If effective, smell training could become a simple, at-home therapy to help people regain their sense of smell after COVID-19.
What could go wrong
This is a small trial, and results may vary. Some people may not improve, and the benefit could be modest or short-lived.

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 70 people

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

Started

May 2022

Expected to finish

Sep 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

18 years and older

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: * Patient diagnosed positive for COVID-19 with persistent olfactory dysfunction * Willing and able to provide written informed consent * Understand and read the French language * Have an internet connection and a working email address Exclusion Criteria: * Anosmia and hyposmia pre-covid-19 * Be known chronic rhinosinusitis with or without nasal polyposis * Have received radiotherapy or chemotherapy for Head and Neck Tumors * Have a diagnosis of Alzheimer's, Parkinson's, multiple sclerosis or any other neurodegenerative disease 5. Have a brain tumor or ENT diagnosis 6. History of naso-sinus surgery; 7. History of traumatic brain injury

Get updates

Get notified about this study

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

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

anosmia COVID-19

As listed by the trial registrant

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

Anosmia COVID -19 Hyposmia Parosmia SARS-CoV-2 infection

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

  • Université du Québec à Trois-Rivières

    RECRUITING

    Trois-Rivières, Quebec, G8Z 4M3, Canada

More trials for these conditions

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