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MS Patients' sense of smell under the microscope

NCT ID NCT06020937

Knowledge-focused Sponsor: University of Catania Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 how multiple sclerosis (MS) might change a person's sense of smell and the related nerve sensations in the nose. Researchers will test 200 women with MS using simple smell and tickle tests, along with questionnaires about mood and thinking. The goal is to better understand the link between MS and these senses, which are often overlooked.

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

About 200 people

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

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

Dec 2028

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.

Who is studied

Number of participants: 400, 200 healthy controls, and 200 patients diagnosed with multiple sclerosis divided as follow: 100 with manifest trigeminal pain 100 without known trigeminal pathology.

Ages

18 to 55 years

Sex

Female participants only

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: Adult women (age 18 to 55) diagnosed with multiple sclerosis using the 2017 McDonald Criteria under treatment with Disease Modifying Therapy (DMTs) with or without trigeminal concerns, or newly diagnosed with MS Exclusion Criteria: * Chronic rhinosinusitis with and without nasal polyposis; current allergic rhinitis; other nasal issues that lead to olfactory dysfunction * anamnestic COVID with incomplete recovery * Neurodegenerative disorders (Parkinson, Alzheimer, Fronto-temporal Dementia, cognitive impairment and brain vascular diseases) * History of stroke in the last three years * Depression or any psychiatric condition * intake of drugs with sedating side effects * major health issues that might affect olfactory function (e.g., significant renal insufficiency, uncontrolled diabetes) * Chronic alcoholism / drug abuse * Severe head trauma * Severe facial injuries * Smoker over 20 cigarettes day or smoking from more than 15 years

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Conditions

The condition(s) this trial relates to.

multiple sclerosis

As listed by the trial registrant

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

Multiple sclerosis

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. 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

  • Arianna Di Stadio

    Catania, Sicily, 95121, Italy

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