NCT04705805

Brief Summary

Sense of smell disorders are common and are said to affect up to 20% of the general population. They are often disabling and have a real impact on the quality of life. Smell disorders are most often assessed using a visual analogue scale and more rarely with objective tests (Sniffing Stick Test). Many ENT units do not have these objective tests because they are time-consuming and are not covered by health insurance. Some teams, such as that of Dr Thomas Hummel of the Carl Gustav Carus University Clinic in Dresden Germany, have developed self-assessment questionnaires for the sense of smell in order to improve the overall care of patients with olfactory disorders. Two of these self-questionnaires seem to us to be particularly relevant for use in everyday practice. Since then, these questionnaires have already been validated in different languages (English, Chinese, Korean...), but have never been translated and validated in French. Translating and validating these questionnaires into French would make it possible to improve the management and follow-up of French patients with olfactory disorders and to assess the impact of loss of smell on their quality of life.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
135

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2021

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 8, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

January 12, 2021

Completed
10 days until next milestone

Study Start

First participant enrolled

January 22, 2021

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 22, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 22, 2022

Completed
Last Updated

April 18, 2023

Status Verified

April 1, 2023

Enrollment Period

1.2 years

First QC Date

January 8, 2021

Last Update Submit

April 14, 2023

Conditions

Keywords

Olfactory disordersSelf-assessmentQuality of lifeOlfactory capacities

Outcome Measures

Primary Outcomes (1)

  • Reliability of the self-assessment questionnaire

    To assess the reliability of the self-assessment questionnaire of his olfactory capacities (Self-MOQ) in French in patients presenting an olfactory dysfunction of any acquired etiology for more than 3 months using a test-retest trial.

    3 months

Study Arms (2)

Case

Patient presenting an olfactory dysfunction of any acquired aetiology that has been evolving for at least 3 months without total recovery.

Behavioral: Self-assessment of olfactory disorders through two questionnaires.

Control

Patient with no sense of smell problems followed up in ENT for another pathology that does not affect the sense of smell

Behavioral: Self-assessment of olfactory disorders through two questionnaires.

Interventions

* Assessment of sense of smell or loss of smell using an Analogue Visual Scale * Carrying out the objective smell test (Sniffin' sticks test) (gold standard) * Information from two self-questionnaires translated into French: a quality of life questionnaire (The Questionnaire Olfactory Disorders (QOD)) and a self-assessment questionnaire of his olfactory capacities (Self-Mini Olfactory Questionnaire (Self-MOQ))

CaseControl

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Case patients with acquired olfactory disorders will be selected from the ENT primary care clinic of Strasbourg University Hospital. Control patient without olfactory disorders are treated for another ENT pathology in the ENT primary care clinic of Strasbourg University Hospital.

You may qualify if:

  • Patient \> 18 years old
  • Patient affiliated to a sickness insurance social protection scheme, beneficiary or rightful claimant
  • Patient who has not expressed his or her opposition to the collection and processing of his or her data for research purposes after the investigator has provided informed information.
  • Patient presenting an olfactory dysfunction of any acquired aetiology that has been evolving for at least 3 months without total recovery (case group).
  • Patient with no sense of smell problems followed up in ENT for another pathology that does not affect the sense of smell (control group).

You may not qualify if:

  • Patient in an emergency or life-threatening situation
  • Patient under judicial protection
  • Patient under guardianship or trusteeship
  • Inability to provide informed information to the patient (patient does not speak or understand French)
  • Patient with congenital syndromic or non-syndromic congenital anosmia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Les Hôpitaux Universitaires de Strasbourg

Strasbourg, 67098, France

Location

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 8, 2021

First Posted

January 12, 2021

Study Start

January 22, 2021

Primary Completion

April 22, 2022

Study Completion

April 22, 2022

Last Updated

April 18, 2023

Record last verified: 2023-04

Locations