Muscular Respiratory Involvement and Systemic Sclerosis

NCT ID: NCT04118725

Last Updated: 2021-09-29

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

COMPLETED

Clinical Phase

NA

Total Enrollment

52 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-10-21

Study Completion Date

2021-07-07

Brief Summary

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Dyspnea in systemic sclerosis (ScS) constitute a major factor of functional disability.

Intensity of dyspnea is sometimes discordant with objectives data from cardiopulmonary involvements, suggesting unknown additional factors.

Diffuse fibrosing myopathy of bad prognosis have been reported in ScS.To now, muscular respiratory involvement has not been evaluated in ScS. Therefore, ScS patients (with or without dyspnea) could have underlying respiratory muscular involvement not detected by current standard of care with pulmonary function tests (PFT).

This project is the first, to the best of our knowledge, to assess frequency of respiratory muscular involvement in ScS and to evaluate a screening strategy of this involvement.

Detailed Description

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Conditions

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Systemic Sclerosis Diaphragm Defect Respiratory Insufficiency Pulmonary Function Test Diaphragmatic Electromyography Muscular Weakness

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

SCREENING

Blinding Strategy

NONE

Study Groups

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Muscular explorations

Pulmonary function test and diaphragmatic electromyography

Group Type EXPERIMENTAL

Pulmonary function test

Intervention Type DIAGNOSTIC_TEST

Diaphragmatic electromyography with measurement of transdiaphragmatic pressure in cases of dyspnea and/or abnormal pulmonary function test (maximum inspiratory pressure and/or lying/seating low vital capacity ratio)

Interventions

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Pulmonary function test

Diaphragmatic electromyography with measurement of transdiaphragmatic pressure in cases of dyspnea and/or abnormal pulmonary function test (maximum inspiratory pressure and/or lying/seating low vital capacity ratio)

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Age ≥18 years-old
* ScS fulfilling ACR/EULAR 2013 classification criteria and followed in the department of internal medicine of Poitiers University Hospital
* Written informatory consent

Exclusion Criteria

* Individuals under tutorship or guardianship
* Individuals with reinforced protection: minors, judiciary or administrative decision
* No affiliation to social insurance
* Pregnancy or breastfeeding
* Associated neuromuscular disease (myasthenia, degenerative diseases)
* Bedridden individuals or with health condition not allowing realization or interpretation of PFT and/or EMG (acute cardiac and/or respiratory failure, pneumopathy)
* Individuals with pacemaker and implanted pumps, especially sensing dispositives, as defibrillators ( relative contre-indication to EMG with magnetic stimulation)
* Individuals with contre-indication to gastroesophageal probe: INR \>4, oesophageal varices, suspected cardio-facial fracture, oesophageal and/or facial obstacle
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Poitiers University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Chu de Poitiers

Poitiers, , France

Site Status

Countries

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France

Other Identifiers

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2019-A01047-50

Identifier Type: -

Identifier Source: org_study_id

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