Morphological Abnormalities of the Olfactory Bulb on MRI and Olfactometry in Anosmic Versus Normosmic COVID-19 Patients

NCT ID: NCT04526054

Last Updated: 2022-08-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

13 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-09-03

Study Completion Date

2021-09-03

Brief Summary

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Olfactory and gustatory disorders are prevalent symptoms in European COVID-19 patients. This study aimed to detect these disturbances among positive COVID-19 patients (symptom not initially highlighted by the patient and not sought by caregivers) in order to allow early management of olfactory and gustatory dysfunction.

Detailed Description

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Several medical teams have recently shown that disturbances of smell and taste are common and can be a precursor and even an isolated sign of COVID-19 involvement. Preliminary results suggest the presence of clinical MRI abnormalities, particularly in the olfactory bulbs in anosmic patients with COVID-19.

Anosmia and taste disturbance are early warning signs that could be important in improving the detection and diagnosis of COVID-19, and also in monitoring disease. In addition, disturbances in smell and taste could be an aid in establishing the prognosis of the clinical course of the viral disease. The question of olfactory recovery is also fundamental. To date, we do not know the possibilities of recovery from COVID-19 post viral anosmia. ENT exams, olfactometry and MRI are proposed to study these phenomena.

Conditions

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Olfaction Disorders COVID-19

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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anosmic or normosmic COVID-19 patients

Patients will undergo ENT exams, olfactometry and MRI.

Group Type OTHER

ENT exam

Intervention Type DIAGNOSTIC_TEST

ENT examination of the nasal cavity: nasofibroscopy and anterior rhinoscopy.

Olfactometry

Intervention Type DIAGNOSTIC_TEST

Olfactometry test using odorous pens (Sniffin's stick test).

Brain MRI

Intervention Type DIAGNOSTIC_TEST

Brain MRI focused on the olfactory bulbs (3 teslas).

Interventions

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ENT exam

ENT examination of the nasal cavity: nasofibroscopy and anterior rhinoscopy.

Intervention Type DIAGNOSTIC_TEST

Olfactometry

Olfactometry test using odorous pens (Sniffin's stick test).

Intervention Type DIAGNOSTIC_TEST

Brain MRI

Brain MRI focused on the olfactory bulbs (3 teslas).

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Patient aged 18 or over
* Patient with or without a sense of smell diagnosed with a positive COVID-19 PCR test by nasopharyngeal swab in one of the investigation centers
* Patient who has already undergone cerebral MRI and olfactometry, as part of their routine care, within 3 days of being diagnosed with COVID-19+ or who agrees to undergo cerebral MRI and olfactometry within 3 days of being diagnosed with COVID-19+.
* Patient who signed a consent form
* Patient being affiliated to a Health Insurance plan

Exclusion Criteria

* History of chronic rhino-sinusitis with or without polyp (s)
* History of major craniofacial trauma that led to loss of smell
* History of chronic sense of smell
* Diagnosis of Parkinson's disease or Alzheimer's disease
* Refusal to perform the 3 MRIs
* Refusal to participate in the study
* Pregnant, parturient or lactating woman
* Patient with contraindications to performing MRI
* Patient not speaking or understanding French
* Patient deprived of liberty or under guardianship
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hôpital Raymond Poincaré

OTHER

Sponsor Role collaborator

Hopital Foch

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Stephane Hans, Pr

Role: STUDY_DIRECTOR

Hopital Foch, Suresnes

Robert-Yves Carlier, Pr

Role: PRINCIPAL_INVESTIGATOR

Hopital Raymond Poincare, Garches

Jerome Lechien, Dr

Role: PRINCIPAL_INVESTIGATOR

Hopital Foch, Suresnes

Locations

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Hopital Raymond Poincare

Garches, , France

Site Status

Hopital Foch

Suresnes, Île-de-France Region, France

Site Status

Countries

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France

References

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Lechien JR, Chiesa-Estomba CM, De Siati DR, Horoi M, Le Bon SD, Rodriguez A, Dequanter D, Blecic S, El Afia F, Distinguin L, Chekkoury-Idrissi Y, Hans S, Delgado IL, Calvo-Henriquez C, Lavigne P, Falanga C, Barillari MR, Cammaroto G, Khalife M, Leich P, Souchay C, Rossi C, Journe F, Hsieh J, Edjlali M, Carlier R, Ris L, Lovato A, De Filippis C, Coppee F, Fakhry N, Ayad T, Saussez S. Olfactory and gustatory dysfunctions as a clinical presentation of mild-to-moderate forms of the coronavirus disease (COVID-19): a multicenter European study. Eur Arch Otorhinolaryngol. 2020 Aug;277(8):2251-2261. doi: 10.1007/s00405-020-05965-1. Epub 2020 Apr 6.

Reference Type BACKGROUND
PMID: 32253535 (View on PubMed)

Other Identifiers

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2020_0057

Identifier Type: -

Identifier Source: org_study_id

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