NCT04465084

Brief Summary

Multiple sclerosis (MS) is an autoimmune disease of the central nervous systems that results in focal inflammatory lesions and then diffuse and degenerative inflammatory phenomena. It is considered to be the leading cause of non-traumatic disability in young adults. Cognitive impairment is a common and disabling part of MS. Studies carried out in the years 1990-2000 estimated their frequency to be between 40 and 60% of MS patients: they reflect the natural history of the disease. Effective treatments for the inflammatory component of the disease that are now available may have led to a reduction in their frequency. Cognitive disorders were identified at an early stage of the disease and affect certain areas preferentially:

  • The most common achievement is the reduction in the speed of information processing. It is present from the early stage of the disease. Progressive deterioration over time is observed, which is a prognostic factor for long-term cognitive decline. Long-term memory was impaired in 40-65% of patients in historical cohorts. More specifically, encoding and retrieval were affected, with storage and consolidation being preserved.
  • The attainment of executive functions is also common.
  • Phonemic and semantic fluency are also disturbed in MS patients. Among cognitive impairments, language impairment has been little studied in MS: in 2016 only 22 controlled studies were identified. The assessments carried out were most often partial, making it impossible to define the characteristics or to conclude that specific linguistic impairments are independent of other cognitive impairments. Finally, recent studies suggest that the frequency of language impairment in MS may be underestimated. Therefore, it seems important to assess the prevalence of language disorders in a large cohort of patients with RRMS or MS, and to characterize these disorders by identifying the linguistic processes involved and the brain substrates involved. This will make it possible to envisage the implementation of more systematic screening for language disorders in MS and to improve patient management, in particular by developing targeted rehabilitation protocols.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
142

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2020

Typical duration for not_applicable

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

July 2, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

July 9, 2020

Completed
1 month until next milestone

Study Start

First participant enrolled

August 17, 2020

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 17, 2020

Completed
1.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 8, 2022

Completed
Last Updated

February 15, 2023

Status Verified

February 1, 2023

Enrollment Period

Same day

First QC Date

July 2, 2020

Last Update Submit

February 14, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • proportion de patient with language disorders in patients with RRMS or MS

    6 month

Study Arms (2)

Case

OTHER

Relapsing-Remitting Multiple Sclerosis and Secondary Progressive Multiple Sclerosis.

Other: Case

Witness

OTHER

Person matched to a "case" on age (+/-3 years) and education level

Other: Withness

Interventions

CaseOTHER

Battery of standardised and normalised tests evaluating different cognitive functions Experimental language tasks MRI

Case

Experimental language tasks MRI

Witness

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Criteria for inclusion of cases : * Patient with a diagnosis of RRMS or MS according to the Mac Donald criteria 2017 * Patient between 18 and 60 years old inclusive * Express consent to participate in the study * Affiliate or beneficiary of a social security scheme * Patients in structured computerised databases for MS Criteria for non-inclusion of cases * Pregnant or breastfeeding woman * Patient with a psychological disorder that may induce a language disorder (AHH - anxiety score ≥ 8 or AHH - depression score ≥ 8) (scale in Appendix 11) * Patient with a history of language impairment before the onset of MS * Patient receiving speech therapy for language disorders * Patient whose mother tongue is not French * Patient with too much dysarthria hindering the intelligibilité́ of his words * Patient with uncorrected visual and/or hearing impairment * Neurological diseases (other than MS) * Psychiatric disorders * Contraindication to MRI (claustrophobia, implanted equipment such as pacemaker). Criteria for inclusion of witnesses * Person matched to a "case" on age (+/-3 years) and education level (see Annex 11) * Express consent to participate in the study * Affiliate or beneficiary of a social security scheme Criteria for non-inclusion of witnesses * Pregnant or breastfeeding woman * Psychic disorder that can induce a language disorder (AHH - anxiety score ≥ 8 or AHH - depression score ≥ 8) (Appendix 10) * History of Language Impairment * Person receiving speech therapy for language disorders * Person whose mother tongue is not French * Person with too much dysarthria hindering the intelligibilité́ of his words * Uncorrected visual and/or hearing impairment * Person with a neurological disease * Psychiatric disorders * Contraindication to MRI (claustrophobia, implanted equipment such as pacemaker).

Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.

Sponsors & Collaborators

Study Sites (1)

Antoine GUEGUEN

Paris, France

Location

MeSH Terms

Conditions

SclerosisLanguage Disorders

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and SymptomsCommunication DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Relapsing-Remitting Multiple Sclerosis and Secondary Progressive Multiple Sclerosis.
Sponsor Type
NETWORK
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 2, 2020

First Posted

July 9, 2020

Study Start

August 17, 2020

Primary Completion

August 17, 2020

Study Completion

July 8, 2022

Last Updated

February 15, 2023

Record last verified: 2023-02

Data Sharing

IPD Sharing
Will not share

Locations