ClinicalTrials.gg
RecruitingNCT02528656PECTUSUpdated Apr 22, 2024

Physiological Assessments During Non Operative Treatment on the Chest Wall Deformities

An interventional study of Vacuum Bell and Dynamic Compression System in Pectus Excavatum and Pectus Carinatum, sponsored by Centre Hospitalier Universitaire de Saint Etienne. Recruiting at 1 site in France. Open to participants aged 10 Years to 30 Years. Per ClinicalTrials.gov, last updated 2024-04-22.

Sponsored by Centre Hospitalier Universitaire de Saint Etienne · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2024, 2 years 5 months ago, but the record still lists the study as recruiting.
  • Registered 7 months after the study started (first participant enrolled Jan 2015, registered Aug 2015).
  • Started Jan 2015; still recruiting 11 years 10 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
52
Allocation
Non-randomized
Ages
10 Years to 30 Years
Sex
All
01

Study summary

The physiological assessment in non-operative treatment on chest wall deformities, are still unclear today. These functional benefits outweigh the aesthetic benefits associated with anatomical improvement. The functional benefits, ventilation, hemodynamic and neurologic, have never been evaluated.

Assessment of Effects on parasympathetic activity of the autonomic nervous system, global health criterion measured by noninvasive methods.

Anatomic evaluation, between the initial and final assessment by objective measures 1) of the chest wall by MRI, and 2) of the heart by echocardiography.

Noninvasive physiological assessment at rest and during exercise in respiratory function exploration flows and volumes, cardiac function by flow measurement, and overall metabolic function test effort (VO2max). Subjective assessment of functional gain between the initial and final balance sheet, based on EVA scales, valued by patients, parents and doctors.

02

Conditions studied

  • Pectus Excavatum
  • Pectus Carinatum

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Keywords

  • Pectus Excavatum
  • Pectus Carinatum
  • Vacuum Bell
  • Dynamic compression system
  • Hearth variability
  • Autonomic Nervous System
03

In context

Funnel Chest

79 studies on the registry are indexed under Funnel Chest; 10 are open to participants now.

This study's planned enrollment of 52 is above the median of 40 across 46 interventional studies indexed under Funnel Chest.

Browse Funnel Chest studies →

Lead sponsor

Centre Hospitalier Universitaire de Saint Etienne is the lead sponsor of 597 studies on the registry; 127 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
10 Years to 30 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patient with pectus excavatum or pectus carinatum who does not require surgery
  • Patient with sufficient displacement of the chest wall during an initial test carried out during the first consultation :For pectus carinatum correction must be obtained with a pressure lower than 9 psi (pound per square inch). For pectus excavatum less than 250 mbar depression.
  • Signed
  • Subject (or parents) affiliated to the French National Health Insurance

Exclusion criteria

Exclusion Criteria:

  • Skeletal disease, disturbing bone strength as osteogenesis imperfect and osteoporosis.
  • Uncontrolled coagulopathies.
  • Marfan syndrome, with mitral valve prolapse for pectus Excavatum.
  • Atrial fibrillation
  • Taking antiarrhythmic drug.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
52 participants (estimated)

Study arms

  • Experimental
    Pectus Excavatum

    Patients with pectus excavatum who do not require surgery, will be treated with the Vacuum bell device.

    Device: Vacuum Bell

  • Experimental
    Pectus Carinatum

    Patients with pectus carinatum who do not require surgery, will be treated with the Dynamic Compression System.

    Device: Dynamic Compression System

Interventions

  • DeviceVacuum Bell

    Patients will be submitted to a negative pressure treatment with the Vacuum Bell device.

  • DeviceDynamic Compression System

    Patients will be submitted to a dynamic compression system.

06

What researchers measure

Primary outcomes

  1. High frequency normalized index (HFnu)

    It is a reflect of the RR short term heart rate variability (HRV) in the frequency domain. It is measured with a ECG Holter monitor

    Time frame: One month after the end of treatment

Secondary outcomes

  1. Low frequency (LF and LFnu)

    It is another index of RR heart rate variability (HRV) measured with a ECG Holter monitor.

    Time frame: One month after the end of treatment

  2. LF/HF ratio

    It is another index of RR heart rate variability (HRV) measured with a ECG holter monitor.

    Time frame: One month after the end of treatment

  3. Blood pressure - Baroreflex

    Measure of autonomic function (parasympathetic activity) - quantified via changes in blood pressure

    Time frame: One month after the end of treatment

  4. Lung residual volume

    It is expressed in litres and is measured with a plethysmograph during a pulmonary function testing.

    Time frame: One month after the end of treatment

  5. Maximum flow

    It is expressed in litres per minute and is measured during a pulmonary function testing. The patient is seated and his/her nose is blocked with a clamp. He/She must blow as fast and as hard as possible.

    Time frame: One month after the end of treatment

  6. Aerobic maximum power

    It is measured by a stress test (incremental exercise)

    Time frame: One month after the end of treatment

  7. Maximum heart rate

    It is measured by a stress test (incremental exercise)

    Time frame: One month after the end of treatment

  8. Left ventricular ejection fraction

    It is measured by an echocardiography

    Time frame: One month after the end of treatment

  9. Severity index of the anatomical damage

    It is measured by a thoracic MRI. It is the ratio between the thoracic width and the distance sternum/spine.

    Time frame: One month after the end of treatment

  10. Nuss Questionnaire

    It is a depression scale

    Time frame: One month after the end of treatment

07

Study locations

1 of 1 sites recruiting
  • CHU de SAINT-ETIENNE
    Saint-etienne, 42000, France
    Recruiting
    • Francois VARLET, MD PhD · Sub investigator
    • Olivier TIFFET, MD PhD · Sub investigator
    • Frederic COSTES, MD PhD · Sub investigator
    • Jean-Claude BARTHELEMY, MD PhD · Sub investigator
    • Arnaud PATOIR, MD · Principal investigator
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2015 (actual). Primary completion is estimated for Jun 2024, 113 months after the start.

Of 31 interventional studies with no phase under Funnel Chest, half reached primary completion within 45 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 68. This study's planned 113 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 13, 2015
First posted
Aug 19, 2015
StartActual
Jan 12, 2015
Primary completionEst.
Jun 2024
CompletionEst.
Jun 2024
Last update
Apr 22, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 22, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02528656
Collaborators
MEDICALEX
Responsible party
Sponsor
First posted
Aug 19, 2015
Start date
Jan 12, 2015
Primary completion
Jun 2024 (estimated)
Completion
Jun 2024 (estimated)
Last update
Apr 22, 2024

Study contacts

Arnaud PATOIR, MD
Contact
arnaud.patoir@chu-st-etienne.fr
(0)477828847 ext. +33
Arnauld GARCIN, CRA
Contact
arnauld.garcin@chu-st-etienne.fr
(0)477120286 ext. +33
Manuel LOPEZ, MD
study chair · CHU de SAINT-ETIENNE
Arnaud PATOIR, MD
principal investigator · CHU SAINT-ETIENNE

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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