NCT03503123

Brief Summary

Non-invasive ventilation (NIV) has shown to be an effective therapy for patients with Chronic Obstructive Pulmonary Disease (COPD) with Chronic Hypercapnic Respiratory Failure (CHRF). However, these COPD patients often report severe dyspnoea after switching off from NIV therapy, which leads to discomfort and distress. Currently, it is not known what causes this deventilation dyspnoea and therefore a possible treatment to prevent deventilation dyspnoea is not available. This study investigates possible mechanisms underlying the phenomenon of deventilation dyspnoea in COPD patients by monitoring the effects of NIV on the patient during an afternoon sleep.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Aug 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 9, 2018

Completed
10 days until next milestone

First Posted

Study publicly available on registry

April 19, 2018

Completed
1.3 years until next milestone

Study Start

First participant enrolled

August 15, 2019

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 15, 2023

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 5, 2024

Completed
Last Updated

May 10, 2024

Status Verified

May 1, 2024

Enrollment Period

4.3 years

First QC Date

April 9, 2018

Last Update Submit

May 9, 2024

Conditions

Outcome Measures

Primary Outcomes (4)

  • End-expiratory lung volume

    The change in end-expiratory lung volume due to NIV-usage

    Through study completion, which is one day of NIV use. Compare the primary outcome before and after the afternoon sleep.

  • Inspiratory capacity

    The change in inspiratory capacity due to NIV-usage

    Through study completion, which is one day of NIV use. Compare the primary outcome before and after the afternoon sleep.

  • Respiratory muscle activity

    The change in respiratory muscle activity due to NIV-usage

    Through study completion, which is one day of NIV use. Compare the primary outcome before and after the afternoon sleep.

  • Transcutaneous carbon dioxide

    The change in transcutaneous carbon dioxide due to NIV-usage

    Through study completion, which is one day of NIV use. Compare the primary outcome before and after the afternoon sleep.

Secondary Outcomes (1)

  • Correlation of inspiratory capacity with end-expiratory lung volume

    Through study completion, which is one day of NIV use. Compare the primary outcome before and after the afternoon sleep.

Study Arms (2)

COPD patients with deventilation dyspnoea

Ten severe COPD patients (age\>18yr) using chronic NIV with severe symptoms of deventilation dyspnoea (Borg Dyspnoea Scale ≥ 5)

Device: Monitoring physiology with Electrical Impedance Tomography, Electromyography and transcutaneous carbon dioxide measurements.

COPD patients without deventilation dyspnoea

Ten severe COPD patients (age\>18yr) using chronic NIV without symptoms of deventilation dyspnoea, matched with the first cohort/group with regard to the degree of static lung hyperinflation and NIV settings.

Device: Monitoring physiology with Electrical Impedance Tomography, Electromyography and transcutaneous carbon dioxide measurements.

Interventions

Both groups get the same exposures: with measure physiology in both groups by using non-invasive measurement techniques. The techniques we use are Electrical Impedance Tomography to determine degree of hyperinflation. We use Electromyography to analyse respiratory drive. We measure transcutaneous carbon dioxide to assess the effects of non-invasive ventilation. Thereby, we will perform lung function tests.

COPD patients with deventilation dyspnoeaCOPD patients without deventilation dyspnoea

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients will be recruited from the University Medical Center Groningen (UMCG). There is a large population of COPD patients using NIV known at the Home Mechanical Ventilation (HMV) Centre (around 120 patients). The pulmonologists know already at least 10 patients who suffer extremely from deventilation dyspnoea, which could possibly participate in the study.

You may qualify if:

  • COPD with a NIV indication using chronic NIV
  • Age \> 18 years
  • With or without deventilation dyspnea when switching off from NIV (depending on group/cohort)
  • Written informed consent is obtained

You may not qualify if:

  • COPD exacerbation within 2 weeks preceding the study
  • Modification of ventilation within 2 weeks preceding the study
  • Having a poor compliance with NIV (usage of \<4 h/day)
  • Having other disorders leading to respiratory failure (such as morbid obesity, kyphoscoliosis, neuromuscular diseases, tuberculosis)
  • Not being able to sleep 1.5 hour in the afternoon
  • Having spinal injury, BMI\>50, damaged or inflamed skin around the thorax or a cardiac pacemaker or other implanted devices

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Pulmonary diseases

Groningen, Netherlands

Location

MeSH Terms

Conditions

Pulmonary Disease, Chronic ObstructiveDyspnea

Interventions

Electromyography

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsRespiration DisordersSigns and Symptoms, RespiratorySigns and Symptoms

Intervention Hierarchy (Ancestors)

ElectrodiagnosisDiagnostic Techniques and ProceduresDiagnosisMyography

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Target Duration
1 Day
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Post-doc, Pulmonary physician

Study Record Dates

First Submitted

April 9, 2018

First Posted

April 19, 2018

Study Start

August 15, 2019

Primary Completion

December 15, 2023

Study Completion

March 5, 2024

Last Updated

May 10, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations