ClinicalTrials.gg
Status unknownNCT04332198Updated Mar 4, 2022

Neurobiological and Immunological Mechanisms of Dyspnea in ALS (BIOPNEA)

An interventional study of biological test in Shortness of Breath, Dyspnea and Amyotrophic Lateral Sclerosis, sponsored by Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil. Status unknown. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-03-04.

Sponsored by Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil · Not applicable, Interventional, and Other

The sponsor has not verified this record recently (last verified Feb 2022), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
30
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 10 studies in Dyspnea by Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil — 1 open to participants now, 1 under way, none of them phase 3. Dyspnea · Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil.

Started
2023
the only one that year
No phase
6 of 10
none open now
Registered
7th of 10
by date

Among the 10 studies in Dyspnea by Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil, this one is the only one that started in 2023, is one of 6 with no phase, and was the 7th registered.

By phase

10 studies; the count open now beside each. This study's row is marked.

No phasethis study6 · 0 open
Observational4 · 1 open

By the year they started

First in 2016; this study’s year is marked. 1 started in 2023.

What they test

Size and results

Median enrollment 33 across the 6 interventional studies, 20 across the 4 observational. Of the 7 that completed or were terminated, 0 (0%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 10 studies in Dyspnea by Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil, or all of them as a file.
02

Study summary

Dyspnea; subjective experience of respiratory discomfort; which produces negative emotional experience, is the most common symptom of patients afflicted with chronic respiratory failure and its treatments are limited. Amyotrophic Lateral Sclerosis (ALS) related - dyspnea, due to diaphragmatic dysfunction, is similar to dyspnea during mechanical inspiratory load (activation of the supplementary motor area, SMA). The perception of pain and dyspnea is processed in similar brain areas (insula, dorsal anterior cingulate cortex, amygdala and medial thalamus) and in ALS; relieving dyspnea by noninvasive ventilation (NIV) is associated with decreased pain thresholds. Otherwise, it is reported systemic elevations of pro-inflammatory cytokines in chronic pain patients, correlating with intensity of pain, and during respiratory load in healthy volunteers.

The objectives are to evaluate the cytokines and endorphins rates variations after initiation of NIV in ALS patients, and to correlate cytokines and endorphins rates with the intensity of the affective component and the intensity of the sensory component of dyspnea.

The investigators will perform a prospective, experimental study, including 30 ALS patients. Dyspnea, ventilatory and cardiac settings, electromyographic recording of the scalene muscle and biological assays (ACTH, endorphin, Neuropeptide P, BDNF, IL1, IL6, IL8, IL10, TNF), will be measured during spontaneous breathing and during NIV at different times after initiation.

The investigators expect a reduction of immunological and neurobiological markers after relieving dyspnea by NIV. This work could lead to the development of new treatments for dyspnea.

03

Conditions studied

  • Shortness of Breath
  • Dyspnea
  • Amyotrophic Lateral Sclerosis
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

  • Patients with chronic respiratory failure with diaphragmatic dysfunction linked to amyotrophic lateral sclerosis and requiring long-term NIV

Exclusion criteria

Exclusion Criteria:

  • Other respiratory disease (, asthma, obstructive sleep apnea)
  • Alcohol or psychotropic drug the lasts 24 hours
  • Cognitive impairment
  • Smoking > 10 PA
  • Exacerbation or infection 6 weeks earlier
  • Endstage of illness
  • Chronic or acute pain (VAS > 3)
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.

COPD

Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.

05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    ALS patients

    Other: biological test

Interventions

  • Otherbiological test

    dyspnea evaluation, ventilatory evaluation and biological test before and after non invasive ventilation

    Also known as: questionnaire

06

What researchers measure

Primary outcomes

  1. the cytokines and endorphins rates variation after initiation of NIV in ALS patients

    measure cytokines and endorphins blood levels before and after NIV

    Time frame: 30 minutes

07

Study locations

No study locations are listed for this record.

08

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

Start is estimated for Jul 2023; primary completion for Oct 2024, 15 months later.

Of 266 non-industry interventional studies with no phase under Dyspnea, half reached primary completion within 13 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 28. This study's planned 15 months is above that.

Counting every sponsor, half of 282 studies reached it within 13 months; a quarter within 6 and three quarters within 28.

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

Registered
Mar 31, 2020
First posted
Apr 2, 2020
StartEst.
Jul 2023
Primary completionEst.
Oct 2024
CompletionEst.
Oct 2024
Last update
Mar 4, 2022
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 Mar 4, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04332198
Lead sponsor
Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil
Responsible party
Sponsor
First posted
Apr 2, 2020
Start date
Jul 2023 (estimated)
Primary completion
Oct 2024 (estimated)
Completion
Oct 2024 (estimated)
Last update
Mar 4, 2022

Oversight

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 Feb 2022. You cannot join it, but the record below documents what was studied.

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