Study of the Test-retest Reliability of the Neuropsychiatric Fluctuations Scale in Parkinson's Disease
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Questionnaire and Physical Exam.
- Who it may be relevant to
- Registry conditions: Parkinson's Disease. Basic parameters: 30 years — 75 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- France
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Study of the Test-retest Reliability of the Neuropsychiatric Fluctuations Scale (EFN)
Overview
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
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.
Interventions
- Other Questionnaire and Physical Exam
self administered questionnaires
Primary outcome measures
- validation of test-retest reliabililty [Time frame: 4 weeks]
Eligibility criteria
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.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Other
Study locations
France · 1 center
- CHUGA — Grenoble
Identifiers
NCT: NCT06701955 · 38RC24.0196 · 2024-A01403-44