Status:

COMPLETED

Olfactory Training in COVID-19 Associated Loss of Smell

Lead Sponsor:

Medical University Innsbruck

Conditions:

COVID-19

Hyposmia

Eligibility:

All Genders

18+ years

Phase:

NA

Brief Summary

Olfactory dysfunction (OD) like hyposmia or anosmia has been realized as a common symptom or even cardinal sign of the disease and can be persisting after recovering. There are two different hypothes...

Eligibility Criteria

Inclusion

  • The subject is aged over 18 years;
  • confirmed diagnosis of COVID-19 at least three months ago (history of positive PCR-testing required) or positive serum nucleocapsid antibody titer against SARS-CoV2;
  • post-infectious COVID-19 related olfactory dysfunction persisting for at least three months with abnormal Sniffin' sticks test (\<13/16 items correct in the identification part);
  • the patient is willing to undergo odor training over 12 weeks;
  • written ICF is obtained.

Exclusion

  • History of olfactory dysfunction prior to COVID-19 infection due to other conditions e.g. status post traumatic brain injury, Parkinson's disease, allergic rhinitis, etc.;
  • Nasal pathology not related to COVID-19 in the systematic otorhinolaryngological examination including endoscopy.
  • the participant is pregnant

Key Trial Info

Start Date :

August 10 2022

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

December 31 2024

Estimated Enrollment :

70 Patients enrolled

Trial Details

Trial ID

NCT05421221

Start Date

August 10 2022

End Date

December 31 2024

Last Update

April 23 2025

Active Locations (1)

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Medical University of Innsbruck

Innsbruck, Tyrol, Austria, 6020