NCT03698760

Brief Summary

This study evaluates the effectiveness of the smell tests that are used in early diagnosis of mild dementia.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
82

participants targeted

Target at P50-P75 for not_applicable alzheimer-disease

Timeline
Completed

Started Jun 2019

Shorter than P25 for not_applicable alzheimer-disease

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 2, 2018

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 9, 2018

Completed
9 months until next milestone

Study Start

First participant enrolled

June 25, 2019

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 5, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 5, 2020

Completed
Last Updated

July 29, 2020

Status Verified

July 1, 2020

Enrollment Period

8 months

First QC Date

October 2, 2018

Last Update Submit

July 28, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Objective test of evaluation of the olfactory sensitivity

    olfactory test (only one evaluation): random fragrances, recognition (Yes or No)

    15 minutes

Secondary Outcomes (2)

  • Health condition assessed by self-administered questionnaire (SAQ)

    10 minutes

  • Objective test of evaluation of the olfactory thresholds

    15 minutes

Study Arms (2)

Mild stage Alzheimer group

EXPERIMENTAL

Participants with mild stage Alzheimer's disease

Diagnostic Test: Olfactory test

Control Group

EXPERIMENTAL

Participants without cognitive disorders

Diagnostic Test: Olfactory test

Interventions

Olfactory testDIAGNOSTIC_TEST

Olfactory test: All fragrances tested are kept in an airtight case protected from cold and heat. The test is done on a tablet and the data will be automatically saved. The first screen is about the administrative data, sex and age of the subject. Olfactory test: six odors among the fourteen are proposed in a randomized way.

Control GroupMild stage Alzheimer group

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Being 60 years old and over
  • The participants enrolled in the control group must have a score of the Mini-Mental State Exam test greater than or equal to 28.
  • The participants enrolled in the intervention group must have a diagnosis of Alzheimer's disease, and the score of the Mini-Mental State Exam test should be between 20 and 27

You may not qualify if:

  • Presenting an unstable, acute or current psychiatric or physical condition that is severe enough to prevent the participant from participating in the study, as determined by the investigator.
  • Having an uncorrected major visual or hearing impairment or anosmia (total olfaction loss).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Jewish General Hospital

Montreal, Quebec, H3T 1E2, Canada

Location

MeSH Terms

Conditions

Alzheimer DiseaseOlfaction Disorders

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental DisordersSensation DisordersNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Olivier Beauchet, MD

    Jewish General Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: The study is a single-center controlled study (Jewish General Hospital, Montreal, Quebec, Canada), consisting of two groups of subjects: a control group and a group of subjects with mild Alzheimer's disease.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Geriatrics

Study Record Dates

First Submitted

October 2, 2018

First Posted

October 9, 2018

Study Start

June 25, 2019

Primary Completion

March 5, 2020

Study Completion

March 5, 2020

Last Updated

July 29, 2020

Record last verified: 2020-07

Locations