Study of the Test-retest Reliability of the Neuropsychiatric Fluctuations Scale in Parkinson's Disease

NCT ID: NCT06701955

Last Updated: 2025-01-20

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

RECRUITING

Clinical Phase

NA

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-02-01

Study Completion Date

2027-03-01

Brief Summary

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This study focuses on neuropsychiatric fluctuations (NPF) in Parkinson's disease. Due to the lack of specific assessment tools, we developed the Neuropsychological Fluctuations Scale (NFS), a 20-item questionnaire. Recent studies have confirmed its reliability, sensitivity, and validity. To finalize its validation, assessing its test-retest reliability is an essential next step.

Detailed Description

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During the progression of Parkinson's disease, a large number of patients experience fluctuations in motor status associated with neuropsychiatric fluctuations (NPF) (alternating episodes of depression, anxiety, and apathy with hypomanic states, impulsivity, and attention disorders). NPF may have a significant impact on patients' quality of life as well as on that of their caregivers. Moreover, the presence of these fluctuations is a risk factor for the development of self-medication behaviors, which can lead to addiction to antiparkinsonian treatments.

Due to the lack of specific tools for assessing NPF, our team developed a 20-item self-questionnaire specifically evaluating NPF in acute phases: the Neuropsychological Fluctuations Scale (NFS), which was first published in Movement Disorders, Clinical Practice (Schmitt et al., 2018). Recently, we studied the psychometric properties of the NFS in two populations of Parkinson's disease patients and in the general population (EFN Pre-Validation and EFN-Validation studies: ClinicalTrials.gov NCT04455074). The results regarding internal consistency, sensitivity, and specificity of the NFS, as well as its internal structure and external validity, were published in Frontiers in Neurology in 2023 (Schmitt et al., 2023). It has been demonstrated that the NFS is an innovative tool that complements existing motor and non-motor evaluations, and its utility in diagnosing and managing NPF is significant.

In order to finalize the validation of the NFS and further understand its psychometric characteristics, assessing the temporal stability of the NFS through test-retest reliability is an essential step.

Conditions

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Parkinson's Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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sequence of intervention

self administered questionnaires at different time points..

Group Type OTHER

Questionnaire and Physical Exam

Intervention Type OTHER

self administered questionnaires

Interventions

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Questionnaire and Physical Exam

self administered questionnaires

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

Age \> 30 and ≤ 75 years

* Idiopathic Parkinson's disease (according to the criteria of the Movement Disorders Society)
* Presence of motor fluctuations described by the patient, their relatives, or identified by the clinician
* Stability of antiparkinsonian treatment for at least one month
* Mastery of the French language
* Able to give consent.
* Affiliated to the social security system

Exclusion Criteria

Parkinsonian syndrome other than idiopathic Parkinson's disease

* Dementia (MoCa \< 23)
* No antiparkinsonian treatment or treatment modified for less than one month
* Persons referred to in Articles L1121-5 to L1121-8 of the CSP (corresponds to all protected persons: pregnant women, parturients, breastfeeding mothers, persons deprived of liberty by judicial or administrative decision, persons receiving psychiatric care under Articles L. 3212-1 and L. 3213-1 who are not covered by the provisions of Article L. 1121-8, persons admitted to a health or social establishment for purposes other than research, minors, persons subject to a legal protection measure or unable to express their consent))
* Subject in a period of exclusion from another interventional study.
Minimum Eligible Age

30 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Grenoble

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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CHUGA

Grenoble, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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Emmanuelle Schmitt, PHD

Role: CONTACT

+33 4 76765791

Andrea Kistner

Role: CONTACT

Facility Contacts

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Emmanuelle SCHMITT

Role: primary

Andréa KISTNER

Role: backup

Other Identifiers

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2024-A01403-44

Identifier Type: OTHER

Identifier Source: secondary_id

38RC24.0196

Identifier Type: -

Identifier Source: org_study_id

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