About this trial
The goal of this clinical trial is to test whether home-based inspiratory muscle training can reduce hospital readmissions and death in patients recovering from a severe acute exacerbation of chronic obstructive pulmonary disease (AECOPD).
The main questions this study aims to answer are:
Does adding home-based inspiratory muscle training to usual care lower the risk of all-cause hospital readmission or death within 180 days after discharge? Does inspiratory muscle training improve respiratory muscle strength, symptoms of dyspnea, quality of life, and functional capacity compared to usual care?
Researchers will compare patients randomized to:
Intervention group: Home-based inspiratory muscle training plus usual care Control group: Usual care only
to see if inspiratory muscle training leads to fewer readmissions and deaths, and better patient-reported and physiological outcomes.
Participants will:
Be hospitalized for ≥3 days due to AECOPD, age ≥35 years, able to consent, and own a compatible smartphone.
In the intervention group, receives usual care and additionally inspiratory muscle training:
Inspiratory muscle training twice daily for 90 days, then once daily up to day 180, with remote telemonitoring via a smartphone app and online supervised sessions.
The control group will continue with usual care (pharmacological treatment, smoking cessation advice, vaccinations, and referral to pulmonary rehabilitation if available).
Follow-up assessments will include hospital readmissions, survival, and quality of life questionnaires up to 12 months after discharge.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients admitted to the hospital ≥3 days for AECOPD
Read and speak French, Dutch or English
Age ≥ 35 years
Able to provide informed consent
Disqualifiers
Patients already performing IMT at time of inclusion
Patients with estimated <90 days life expectancy
Non-COPD pulmonary disease as primary diagnosis
Active malignancy
Trial design
Parallel
Treatments tested in this trial
Training
Other interventionhome-based inspiratory muscle training (IMT) will be delivered using a portable IMT device connected via Bluetooth to a smartphone application that provides real-time feedback, adherence monitoring, and telemonitoring by the study team. Patients will train for 365 days following hospital discharge due to an acute exacerbation of COPD: * Intensive phase (Day 0-90): 2 daily sessions, each consisting of 30 breaths against an inspiratory load set by thetelemonitor, with regular online supervised IMT sessions, 7 sessions in total * Maintenance phase (Day 91-180): One daily session of 30 breaths, with sporadic online supervised IMT sessions, 2 sessions in total. * Follow-up phase (Day 181-365): Participants may continue IMT unsupervised. Supervision includes both in-person sessions at hospital visits and online sessions with telemonitors.
Treatment groups
Trial outcomes
Primary outcomes
Composite outcome (all-cause hospital readmission or mortality)
Secondary outcomes
Composite outcome (all-cause hospital readmission or mortality)
Occurrence
Time-to-composite outcome (all-cause hospital readmission or mortality)
Time-to-event
Hospital re-admission
1. Occurrence 2. Reason
All-cause mortality
1. Occurrence 2. Reason
Other outcomes
Intensive care unit admission
Number of days post-discharge
Lung function: Diffusion capacity
Mean of 2 acceptable assessments
1 minute sit-to-stand test, Repetitions from Baseline
Mean change in the number of repetitions completed in the 1-minute sit-to-stand test compared with baseline.
Number of Participants Achieving the Minimal Important Difference (MID) in the 1-Minute Sit-to-Stand Test
Number of participants who improved their 1-minute sit-to-stand repetitions by more than the minimal important difference (MID)
Sponsors and contacts
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KU Leuven
Lead sponsor
Hopitaux Iris Sud
Collaborator
Centre Hospitalier Universitaire Saint Pierre
Collaborator
Onze Lieve Vrouw Hospital
Collaborator
AZ Delta
Collaborator
University Hospital, Antwerp
Collaborator
Algemeen Ziekenhuis Maria Middelares
Collaborator
Grand Hôpital de Charleroi
Collaborator
Centre Hospitalier Universitaire UCLouvain Namur
Collaborator
Centre Hospitalier Universitaire de Liege
Collaborator
General Hospital Groeninge
Collaborator
University Hospital, Ghent
Collaborator