ClinicalTrials.gg
Status unknownNCT03381937PREPHONOUpdated Aug 30, 2019

Impact of the Pre-phonatory Inspiratory Volume on the Speech Quality of Neuromuscular Patients Dependent on Non-invasive Ventilation

An interventional study of speech trial in Neuromuscular Diseases and Non Invasive Ventilation, sponsored by Centre d'Investigation Clinique et Technologique 805. Status unknown at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-08-30.

Sponsored by Centre d'Investigation Clinique et Technologique 805 · Not applicable, Interventional, and Supportive care

The sponsor has not verified this record recently (last verified Aug 2019), so the status shown — last known as Recruiting — may be out of date.

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Phase
Not applicable
Study type
Interventional
Enrollment
15
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 23 studies in Neuromuscular Diseases by Centre d'Investigation Clinique et Technologique 805 — none open to participants now, none under way, none of them phase 3. Neuromuscular Diseases · Centre d'Investigation Clinique et Technologique 805.

Planned enrollment
10th of 13
15 · median 20
Started
2018
the only one that year
No phase
12 of 23
none open now
Registered
20th of 23
by date

Among the 23 studies in Neuromuscular Diseases by Centre d'Investigation Clinique et Technologique 805, this one is the 10th largest by planned enrollment of the 13 interventional ones that give a count, is the only one that started in 2018, is one of 12 with no phase, and was the 20th registered.

Neuromuscular Diseases

361 studies on the registry are indexed under Neuromuscular Diseases; 97 are open to participants now.

Browse Neuromuscular Diseases studies →

Open to participants now

None of the 23 studies in Neuromuscular Diseases by Centre d'Investigation Clinique et Technologique 805 is open now. The open studies under Neuromuscular Diseases, anywhere →

Where they have run

Who these studies take

Of the 70 Neuromuscular Diseases studies recruiting now, 39 (56%) set no upper age limit and 23 (33%) stop at 75 or younger; 36 take children under 18; 16 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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Download CSVNarrow it in search →With an account: the 23 studies in Neuromuscular Diseases by Centre d'Investigation Clinique et Technologique 805 as a file.
02

Study summary

We want to demonstrate that modifications of the ventilation parameters are liable to improve the different characteristics of phonation (duration, intensity, prosody..) in neuromuscular patients who are dependent on non invasive ventilation.

Read the detailed description

Speech and communication quality depend on respiration efficiency. The respiratory involvement observed in neuromuscular disorders can impair speech quality in patients, while the underlying disease may also contribute to alter phonation.

Nowadays, the first line treatment of neuromuscular chronic neuromuscular respiratory failure is noninvasive ventilation (NIV). With disease progression, it is used with increasingly duration during daytime. In that situation, mouthpiece ventilation is preferred as it allows efficient ventilation while being more comfortable for patients who can chose when they want to be ventilated. However, in that situation, patients do not receive ventilatory support while they are speaking which puts them in a less favorable situation for speech. We think that pre-phonation inspiratory volume is an essential part of speech quality. Without mechanical ventilation, this volume is reduced as a consequence of respiratory failure but it is liable to increase significantly if the patient used the volume delivered by the ventilator .

We believe that phonation is improved by NIV by applying specific ventilation parameters in patients dependant on mechanical ventilation. The modification could be used by neuromuscular patients to improve speech quality; the patients would then be able to use their usual ventilatory support to improve phonation and modulation of their speech.

In this crossover open labelled, randomised study, done in a single center (home ventilation unit of the referral center of Hospital Raymond Poincaré HUPIFO (University Hospital of Western Paris and Ile de France) (Garches, France)), phonation characteristics will be studied in 3 situations (during spontaneous breathing without ventilatory support, with the usual NIV parameters, with speech-specific NIV parameters) during which speech trials will be performed.

03

Conditions studied

  • Neuromuscular Diseases
  • Non Invasive Ventilation

Keywords

  • mechanical ventilation
  • noninvasive ventilation
  • neuromuscular disorder
  • phonation
  • mouthpiece ventilation
04

Who can participate

Ages eligible
18 Years and older
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

  • adult patients (age > or equal to 18)
  • chronic restrictive respiratory failure due to neuromuscular disease
  • spontaneous breathing autonomy of at least one hour during the days
  • stable clinical state
  • patient with middle school education level (able to read)
  • patients using life support ventilator ((Astral 150 (ResMed®), Elysée (ResMed®), Trilogy (Philips Respironics®), VentilogicLS (Weinman®), Vivo 40 (Breas®), PB560 ou Légendair (Covidien®), Monal T50 (Air liquide system®))

Exclusion criteria

Exclusion Criteria:

  • refusal to participate
  • unability to cooperate
  • illiterate patients
  • tracheostomised patients
  • spontaneous breathing autonomy \< 1h
  • cardiovascular instability
  • not registered with the social security system
05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
15 participants (estimated)

Study arms

  • No intervention
    Spontaneous breathing

    Spontaneous breathing without mechanical ventilation

  • Experimental
    Conventional mechanical ventilation

    Conventional mechanical ventilation, with patient ventilator usual parameters

    Other: speech trial

  • Experimental
    Speech specific mechanical ventilation

    Mechanical ventilation with specific parameters to improve speech

    Other: speech trial

Interventions

  • Otherspeech trial

    speech trial during different ventilation conditions

06

What researchers measure

Primary outcomes

  1. Phonation duration

    evaluation by the measurement of the longest duration of a sustained A sound. The subject is asked to sustain a vowel as long as possible during a respiratory cycle while being recorded. Phonation duration is measured (in seconds) on the recording

    Time frame: 1 hour

Secondary outcomes

  1. Speech Intelligibility

    assessment of intelligibility during reading of preselected words by listeners blinded to ventilation condition with a validated scale

    Time frame: 1 hour

  2. Quality of prosodia

    evaluation of prosodia by listeners blinded to ventilation condition with a score based on the number of correct identification

    Time frame: 1 hour

  3. Phonation flow

    Measurement of the number of syllables/min during the reading of a predetermined text

    Time frame: 1 hour

  4. Reading duration

    Measurement of the duration for the reading of a predetermined text

    Time frame: 1 hour

  5. Phonation quality

    evaluation of the phonation quality by the patient with a horizontal visual analogical scale ranked from 0 to 10 (0= very poor quality and 10= very good quality). The scale is 10 cm long ; the patient indicate his perceived sensation on the scale and the according measure (between 0 and 10) is recorded

    Time frame: 1 hour

  6. Breathing quality

    evaluation of the breating quality during speech in each condition by the patient with a horizontal visual analogical scale ranked from 0 to 10 (0= very uncomfortable and 10= very comfortable). The scale is 10 cm long ; the patient indicate his perceived sensation and the according measure (between 0 and 10) is recorded

    Time frame: 1 hour

07

Study locations

1 of 1 sites recruiting
  • Raymond Poincaré hospital
    Garches, 92380, France
    Recruiting
    • Hélène Prigent, MD, PhD · Contacthelene.prigent@aphp.fr · 0033147107911
    • Hélène Prigent, MD PhD · 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 Feb 2018 (actual). Primary completion is estimated for Jan 2020, 23 months after the start.

Of 75 non-industry interventional studies with no phase under Neuromuscular Diseases, half reached primary completion within 31 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 47. This study's planned 23 months is below that.

Counting every sponsor, half of 84 studies reached it within 25 months; a quarter within 12 and three quarters within 43.

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

Registered
Sep 21, 2017
First posted
Dec 22, 2017
StartActual
Feb 6, 2018
Primary completionEst.
Jan 2020
CompletionEst.
Jan 2020
Last update
Aug 30, 2019
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 Aug 30, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03381937
Lead sponsor
Centre d'Investigation Clinique et Technologique 805
Responsible party
Sponsor
First posted
Dec 22, 2017
Start date
Feb 6, 2018
Primary completion
Jan 2020 (estimated)
Completion
Jan 2020 (estimated)
Last update
Aug 30, 2019

Study contacts

Hélène Prigent, MD PhD
Contact
helene.prigent@aphp.fr
0033147107911

Oversight

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

Not currently enrolling

This study is status unknown, as verified in Aug 2019. You cannot join it, but the record below documents what was studied.

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