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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03577483
Other study ID # CHUBX 2016/21
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date June 26, 2018
Est. completion date June 18, 2021

Study information

Verified date November 2022
Source University Hospital, Bordeaux
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Parkinson's disease (PD) is the second most common neurodegenerative disease. Multiple system atrophy (MSA) is a relentlessly progressing rare neurodegenerative disease of unknown etiology. In early stages of the disease, PD and MSA symptoms are very similar, particularly MSA-P where Parkinsonism predominates. The differential diagnosis between MSA-P and PD can be very challenging in early disease stages, while early diagnostic certitude is important for the patient because of the diverging prognosis. Voice disorders are a common early symptom in both diseases and of different origin. The ambition and the originality of this project are to develop a digital voice-based tool for objective discrimination between PD and MSA-P.


Description:

Given the clinical similarity between PD and MSA-P in early disease stages and the severity of the prognosis of MSA-P, it would be very useful to have objective tools to assist in the differential diagnosis between both disorders. Since dysarthria is a common early symptom in both diseases and of different origin, the innovative goal of this project is to use dysarthria, through a digital processing of voice recordings of patients, as a vehicle to distinguish between PD and MSA-P in early disease stages. The team will build a corpus of voice samples of patients with both diseases and a recent diagnosis (less than 4 years) and controls. This corpus will consist in sustained vowels, utterances of a standard text and spontaneous speech. The recordings will be performed using a high quality digital recorder (H4n) and the DIANA and EVA-2 workstations. DIANA is a state-of-the-art system dedicated to pathological voice recording and analysis. An electroglottograph (EGG), a non-invasive device, will be also used in conjunction with the recordings to provide the ground truth of glottal opening and closure instants during utterances. The use of an EGG can be very useful given that OGI and GCI provide valuable information about the voice short-time dynamics.


Recruitment information / eligibility

Status Completed
Enrollment 68
Est. completion date June 18, 2021
Est. primary completion date June 18, 2021
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 30 Years to 80 Years
Eligibility Inclusion Criteria: - Patient with Parkinson's disease : - Diagnosis of idiopathic Parkinson's disease (PD) according to criteria (Hughes et coll., 1992) - Patient in early stage of PD : Hoehn&Yahr stage between 1 and 2, and the onset of symptoms = 4 years - Patient with or without mild to moderate speech troubles: UPDRS III item 18 = 2 - Patients with MSA-P (Parkinsonian form) : - Diagnosis of Multiple Atrophy System (MSA) Parkinsonian form possible or probable according to Gilman et coll 's criteria (2008) - Patient in early stage of MSA-P: score of part IV of the UMSARS (Unified Multiple System Atrophy Rating Scale) = 3 points and the onset of symptoms = 4 years - Patient with or without mild to moderate speech troubles: UMSARS II item 2 = 2 - Controls : - Absence of neurologic and oto-rhino-laryngologic disease Exclusion Criteria: - The deaf and/or mutes - Patient with speech troubles which are not related to the MSA or PD - Person under safeguard justice, guardianship

Study Design


Intervention

Procedure:
voice recordings
A digital processing of voice recordings (from 30 to 45 minutes) will be performed for each participant, using a high quality digital recorder: the DIANA (computerized device of acoustic analysis) and the EVA-2 workstations (assisted Evaluation system Voice).

Locations

Country Name City State
France Centre Hospitalier Universitaire de Bordeaux Bordeaux
France Centre Hospitalier Universitaire de Toulouse Toulouse

Sponsors (2)

Lead Sponsor Collaborator
University Hospital, Bordeaux Institut National de Recherche en Informatique et en Automatique

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Differences between groups in Dysphonia Severity Index (DSI). DSI will be calculated with the SESANE software (http://www.sqlab.fr/) and with algorithms developed by GeoStat at Inria.
Evaluation of the rhythm voice
Vowels: mean frequency (Hz), variation coefficient (%), jitter factor (%), mean intensity (dB), shimmer factor (%), and noise to harmony ratio (dB).
Speech prosody: mean frequency (Hz), variation coefficient (%), minimal frequency (Hz), maximal frequency (Hz), dynamic (Hz), mean duration of speech between two pauses (seconds), total amount of syllables (syllables/s), total amount of pure speech (syllables/s), articulation rate (syllables/s), percentage of pauses (%), percentage of pauses within words (%), time between pauses (s), SPIR index of rhythmicity (words/min), fragmentation of vowels (%), voice onset time (s), stop-consonant spirantization (%).
Aerodynamic voice parameters will be assessed with the DIANA system (http://www.sqlab.fr/) and algorithms specifically developed by GeoStat at Inria.
Day 1
Primary Differences between groups in Acoustic Voice Quality Index (AVQI) AVQI will be calculated with the SESANE software (http://www.sqlab.fr/) and with algorithms developed by GeoStat at Inria.
Objective measurement of overall voice quality consisted of determining the acoustic parameters for calculating AVQI: smoothed cepstral peak prominence (CPPs) with the computer program "SpeechTool" (James Hillenbrand, Western Michigan University, Kalamazoo, MI, USA) and harmonics-to-noise ratio (HNR), shimmer local, shimmer local dB, general slope of the spectrum (slope) and tilt of the regression line through the spectrum (tilt) with Praat. Te Acoustic Voice Quality Index (AVQI) was calculated according to the regression formula: 2.571 [3.295 - 0.111 (CPPs) - 0.073 (HNR) - 0.213 (shimmer local) + 2.789 (shimmer local dB) - 0.032 (slope) + 0.077 (tilt)].
Day 1
Primary Differences between groups in oral airflow (dm3/s). This parameter will be evaluated with the EVA2 system (http://www.sqlab.fr/). Day 1
Primary Differences between groups in glottal leakage (cc/s/dB) This parameter will be evaluated with the EVA2 system (http://www.sqlab.fr/). Day 1
Primary Differences between groups in intra-oral pressure (hPa). This parameter will be evaluated with the EVA2 system (http://www.sqlab.fr/). Day 1
Secondary Differences between groups in perceptive analysis of dysphonia based on total GRBAS-I scale scores (range 0-18) The GRBAS-I scale evaluates six items, i.e. G (Grade), R (Roughness), B (Breathiness), A (Asthenicity), S (Strained) and I (Instability) Day 1
Secondary Differences between groups in perceptive analysis of dysarthria based on French Clinical Dysarthria Battery scores Sum of all 12 prosody item scores and all 6 phonetic performance item scores; range 0-84. Day 1
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