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Hypermobile Ehlers-Danlos SyndromeProprioRespiNCT05000151

Lung Volume Perception and Impact of a Cognitive Task on Ventilation in Hypermobile Ehlers-Danlos Syndrome.

An observational study of Hypermobile Ehlers-Danlos Syndrome, run by Hakimi Adrien at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Patients with hypermobile Ehlers-Danlos syndrome have respiratory and proprioceptive disorders. The aim of this study is to explore whether there is an alteration in lung volume perception in patients with hEDS compared to healthy subjects, and whether a cognitive task can influence ventilation control differently in… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Hypermobile Ehlers-Danlos Syndrome
How many people
38 participants
Where
1 siteFrance
Study dates
2 Sep 2021to 19 May 2022
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Patients will be recruited through practitioners working with the clinic, who will propose participation in the study during consultations with patients diagnosed with EDS. The recruitment of subjects for the control group will be carried out by internal communication within the Clinique de la Mitterie on a voluntary basis.

Who may be able to join

  • More than 18 years old
  • Understanding French
  • hEDS diagnosis
  • Age (±5 years), Gender and BMI (±2.5kg/m²) matching

Who cannot join

  • Pregnancy
  • Respiratory comorbidity independent of hEDS
  • Previous participation in a rehabilitation programme at the clinic
  • Known respiratory or proprioceptive pathology
  • Hypermobility (evaluated with the Beighton score)

Trial locations and contacts

1 site in 1 country.

France1 site
  • Clinique de la Mitterie

    Lomme, 59160

Other trials in France

About this study

Official title: Lung Volume Perception and Impact of a Cognitive Task on Ventilation in Healthy Subjects and Subjects With Hypermobile Ehlers-Danlos Syndrome.

Patients with hypermobile Ehlers-Danlos syndrome have respiratory and proprioceptive disorders. The aim of this study is to explore whether there is an alteration in lung volume perception in patients with hEDS compared to healthy subjects, and whether a cognitive task can influence ventilation control differently in subjects with hEDS than in healthy subjects.

Medical subject headings
Ehlers-Danlos syndrome type 3

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT05000151
Study groupRoleWhat they receive
PatientsHypermobile Ehlers-Danlos patients (n=21)
Healthy subjectsHealthy subjects recruited from the clinic's staff (n=21) Age, Gender and BMI matched with hEDS patients

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Accuracy of lung volume perception

    The perception of lung volume is assessed using a device comprising a flow meter, an electronic acquisition card and an LCD screen. Subjects will be given 3 trials to train to perceive a target lung volume and then 3 trials without feedback to reproduce that target lung volume. The mean of the absolute deviations from the target volumes in percent is used as the primary outcome.

    Measured: Baseline

Secondary outcomes (2)
  1. Minute ventilation with or without cognitive task

    The minute ventilation will be calculated over 1 minute without cognitive task and then over 1 minute with cognitive task (trail making test part B).

    Measured: Baseline

  2. Respiratory rate variability

    The time interval between each inspiratory peak will be recorded and will allow the calculation of the standard deviation and the root mean square with and without the cognitive task.

    Measured: Baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Aug 2021
  2. Study start2 Sep 2021
  3. Primary completion19 May 2022
  4. Study completion19 May 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Cross-sectional
Enrolment
38 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05000151
Sponsor's protocol ID
ProprioRespi
Acronym
ProprioRespi
Status last verified
Jul 2022
First submitted
30 Jul 2021
Last updated
22 Jul 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hakimi A, Bergoin C, De Jesus A, Hermand E, Fabre C, Mucci P. Impairment of lung volume perception and breathing control in hypermobile Ehlers-Danlos syndrome. Sci Rep. 2024 Apr 6;14(1):8119. doi: 10.1038/s41598-024-58890-2.

    PubMed 38582758

Questions about this trial

What is this clinical trial studying?

An observational study of Hypermobile Ehlers-Danlos Syndrome, run by Hakimi Adrien at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 22 Jul 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Accuracy of lung volume perception (time frame: Baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05000151, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Jul 2022.

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