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Clinical Trial Summary

This is a non-interventional observational study designed to systematically record the results of routine laryngeal examinations and specific characteristics of dysphagia in patients with multiple system atrophy (MSA), Parkinson's disease (PD) and progressive supranuclear palsy (PSP) and related 4repeat tauopathies. The results of a fiberoptic / flexible endoscopic evaluation of swallowing (FEES) while performing a structured task protocol will be recorded. If available, laryngeal electromyography (EMG) results will also be recorded. In addition to the examination results, demographic and disease-specific data are collected, and two questionnaires, the Swallowing Disturbance Questionnaire for Parkinson's Disease (SDQ-PD) and the swallowing specific Quality Of Life Questionnaire (SWALQOL), are administered.


Clinical Trial Description

Multiple system atrophy (MSA) is a sporadic progressive neurodegenerative disorder caused by oligodendroglial aggregation of α-synuclein affecting predominantly the nigrostriatal, olivo-ponto-cerebellar, and autonomic systems,resulting in a clinical presentation of dysautonomia combined with either predominantly parkinsonian (MSA-P) or cerebellar (MSA-C) symptoms of varying severity.In its early stage, the diagnosis of MSA according to the second consensus criteria can be challenging. Therefore, the Movement Disorders Society MSA study group recently addressed the importance of developing valuable diagnostic tools for securing an early diagnosis in patients with MSA not only to estimate disease prognosis but also to early initiate novel, potentially disease-modifying treatments in clinical trials. Despite laryngopharyngeal dysfunction being associated with decreased life expectancy and quality of life, systematic assessment of these functions in MSA is scarce. Previously, an easy-to-implement MSA-FEES task-protocol was suggested to systematically assess laryngopharyngeal function. A pilot study on 8 patients with MSA not only showed that the task protocol was feasible and well tolerated, but also that laryngopharyngeal symptoms where highly prevalent despite the lack of clinical presentation (Warnecke et. al 2019). Moreover, irregular arytenoid cartilages movements where present in all MSA-patients when performing this task protocol, suggesting this symptom could serve as a clinical marker to identify MSA-patients. Following this pilot study, an observational two center study assessed 57 MSA patients with this protocol and compared findings to an age-matched cohort of PD-patients (Gandor et al. 2020). While only 43.9% of MSA patients had clinical symptoms of laryngeal dysfunction, 93% showed laryngeal abnormalities during FEES performing the task-protocol. 91.2% of MSA-patients showed irregular arytenoid cartilages movements. In contrast, only one PD patient showed laryngeal abnormalities with vocal fold motion impairment, but not irregular arytenoid cartilages movements. This study suggests that irregular arytenoid cartilages movements allow differentiating MSA from PD with a sensitivity of 0.9 and a specificity of 1.0. The aim of this FEEMSA trial is to continue recruitment of patients with MSA and PD and systematically assess laryngopharyngeal function in an even larger cohort. Moreover, patients with PSP and related 4repeat tauopathies will also be recruited at eligible sites to compare results from this cohort to results in MSA and PD. If available, laryngeal EMG will also be recorded. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04706234
Study type Observational
Source Kliniken Beelitz GmbH
Contact Florin Gandor, MD
Phone +493320422781
Email gandor@kliniken-beelitz.de
Status Recruiting
Phase
Start date September 1, 2017
Completion date July 31, 2024

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