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Study Evaluating the Olfactory Recovery of Anosmia Post COVID-19 by Olfactory Rehabilitation Assisted by Web-application

Prospective Study Evaluating the Olfactory Recovery of Anosmia Post COVID-19 by Olfactory Rehabilitation Assisted by Web-application

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04806880
Acronym
COVIDANOSMIA
Enrollment
1155
Registered
2021-03-19
Start date
2021-01-25
Completion date
2021-08-01
Last updated
2021-10-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Covid19

Keywords

Web-application, Anosmia, COVID-19, coaching

Brief summary

Anosmia is a symptom present in 40 to 80% of patients and usually only lasts 1 to 2 weeks. However, in nearly one in five patients, it can last beyond or even several months with consequences in terms of undernutrition and depression. However, olfactory rehabilitation is a technique validated in post-infectious anosmia since 2014 and recommended by international learned societies to accelerate recovery with nearly 63% improvement in anosmia In the context of the health crisis linked to the coronavirus, approximately 1 million French people will have persistent anosmia following an infection with COVID-19. A web-application to support the olfactory coaching of anosmic patients and help with follow-up seems relevant to promote recovery and the proper conduct of this coaching. covidanosmie.fr is a web application dedicated to olfactory rehabilitation, accessible free of charge.

Interventions

support for olfactory coaching consisting of the inhalation of fragrant essential oils.

Sponsors

Kelindi
CollaboratorINDUSTRY
Centre National de la Recherche Scientifique, France
CollaboratorOTHER
Hospital of Tours
CollaboratorUNKNOWN
Weprom
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Post-COVID anosmia lasting more than 1 month * Consent to the use of data via the application

Exclusion criteria

* Other causes of anosmia than COVID * Contraindication to olfactory coaching (allergy to one of the aromatic oils) * Minor

Design outcomes

Primary

MeasureTime frameDescription
Evaluation of the rate of patients presenting an improvement in their anosmia16 weeksNumber of patients with an improvement in anosmia (increase of at least 1 point on the visual analogue scale 0-10) on the number of users

Secondary

MeasureTime frameDescription
Evaluation of the time until recovery of at least 1point in 10 (Visual Analog Scale) from anosmia,16 weeksTime between the date of first use of the application and the date of recovery of at least one point of anosmia
Assessment of the duration of anosmia16 weeksTime between the date of diagnosis or onset of anosmia and the date of final recovery
Evaluation of the recovery of at least one point in 10 (Visual Analog Scale) depending on the oils16 weeksEvolution of the VAS according to the different oils, proportion of patients with an increase of at least 1 point in anosmia on a visual analog scale (from 0 no smell to 10 normal smell) of each oil

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026