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Tests a cognitive battery that separates word-meaning problems from thinking-control problems

Tests the ExéSem battery in adults with memory, vascular or language disorders.

Key facts

Who runs it
Hospices Civils de Lyon
Where
Lyon, FranceSee the site
Trial code
Registry title
Validation Study of the ExéSem Battery Designed to Differentiate the Contribution of Executive Functions in Semantic Disorders
Status
Not yet recruiting
People taking part
140 people, planned
Started
9 Sept 2026
Expected to end
9 Sept 2029
Type of study
Observational, 2 groups
Treatments tested
  • ExéSem cognitive battery
Record updated
7 May 2026

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for French-speaking adults aged 50 to 90, either without memory or thinking problems or with Alzheimer's disease, vascular cognitive impairment or semantic variant primary progressive aphasia.

Age
50 to 90 years (inclusive)
Sex
All sexes
Disease stage
People with cognitive impairment need Alzheimer's disease (minor or major stage), vascular neurocognitive impairment, or the semantic variant of primary progressive aphasia. Other participants have no cognitive impairment.
Earlier treatment
People with cognitive impairment must be receiving memory care.
Biomarker or test result
People with cognitive impairment need an MMSE score of 20/30 or more within the 6 months before enrollment.

Main reasons for not taking part

  • Severe, progressive or unstable medical conditions that may interfere with the tests (epilepsy, acute psychiatric or psychotic disorders, visual hallucinations, acute infection)
  • Substance use that may affect thinking performance
  • Deafness or blindness that may affect the tests
  • People under guardianship, curatorship or legal protection
  • Pregnant, postpartum or breastfeeding women

The registry criteria, word for word

Show all 22 criteriaShow less

Who can take part

  • - Participants without cognitive impairment
  • Participant aged 50 to 90 years (inclusive)
  • Participant whose native language is French
  • Participant affiliated with or entitled to a social security scheme
  • Participants who have been informed and have not objected
  • Participants with cognitive impairment
  • Participant aged 50 to 90 years (inclusive)
  • Participant whose native language is French
  • Participant receiving memory care with a diagnosis of Alzheimer's disease, at the stage of minor or major neurocognitive impairment, according to the 2011 NIA-AA criteria (McKahn et al., 2011), or with a diagnosis of vascular neurocognitive impairment according to the VasCog-2-WSO diagnostic criteria (Sachdev et al., 2025), or with a diagnosis of primary progressive aphasia with semantic variant (Gorno-Tempini et al., 2011)
  • Mini-Mental State Examination (MMSE) score ≥ 20/30, within the 6 months preceding enrollment
  • Participants affiliated with or entitled to a social security scheme
  • Participants who have been informed and have not objected

Who cannot take part

  • Participants previously diagnosed with cognitive impairment
  • Severe, progressive, or unstable medical conditions that may interfere with assessment variables (epilepsy, acute psychiatric or psychotic disorders, visual hallucinations, acute infection)
  • Specifically for participants without cognitive impairment:
  • Specifically for participants with cognitive impairment:
  • - For all participants:
  • Substance use that may affect cognitive performance
  • Deafness or blindness that may compromise the participant's assessment or participation in tasks and scales
  • Participants under guardianship, curatorship, or legal protection
  • Pregnant, postpartum, or breastfeeding women
  • Severe behavioral and psychological symptoms that prevent task completion, as determined by the investigator

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 50 and 90 years old?

Where in France

  • Hopital des CHARPENNES (Hospices Civils de Lyon)Lyon, FranceContact: Floriane DELPHIN-COMBE, MDNo longer taking part

About the trial

What the trial wants to find out

This protocol describes a study aimed at evaluating the psychometric properties of the ExéSem battery, developed to differentiate semantic deficits from executive semantic impairments in patients with post-lesional or neurodegenerative anomia. Currently available tools do not allow a straightforward distinction between these deficits, limiting diagnostic accuracy and clinical management. The ExéSem battery was developed through a collaboration between Hospices Civils de Lyon, the University of Mons, and Laval University to address this gap.

Read full original descriptionShow less

The battery includes three main tasks: (1) a dual task combining semantic judgment and semantic matching using identical items, (2) a word-picture matching task, and (3) a rapid naming task. Each task is designed to manipulate the level of executive control required to access semantic representations. This allows the identification of whether performance declines under increased executive demand, thereby distinguishing executive-related semantic impairments.

The 2 groups in the trial

  • Participants without cognitive impairment

    Participanst with a MoCA score greater than or equal to 26/30 and a score greater than the alert threshold based on age and education level on the DTLA scale. Participants who have never received a diagnosis of cognitive impairment.

    Treatment: ExéSem cognitive battery

  • Participants with Cognitive Impairment

    Participants receiving memory clinic care with a diagnosis of Alzheimer's disease, at the stage of minor or major neurocognitive impairment, according to the 2011 NIA-AA criteria, or with a diagnosis of vascular neurocognitive impairment according to the VasCog-2-WSO diagnostic criteria , or with a diagnosis of primary progressive aphasia with semantic variant. Participants with a Mini-Mental State Examination (MMSE) score ≥ 20/30, within the 6 months preceding enrollment;

    Treatment: ExéSem cognitive battery

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Validation Study of the ExéSem Battery Designed to Differentiate the Contribution of Executive Functions in Semantic Disorders
Plain-language title
Tests a cognitive battery that separates word-meaning problems from thinking-control problemsGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 13 November 2026.
Fit questions
Built from NCT07573046, who can take part
Record updated
7 May 2026