The goal of this clinical trial is to evaluate the feasibility and effectiveness of home OPEP therapy and aerobic exercise training in patients with moderate to severe Chronic Obstructive Pulmonary Disease (COPD) who are at high risk of acute exacerbations, aged 40-80 years. The main questions it aims to answer are: Does home OPEP therapy, aerobic exercise training, or the combination of both reduce the incidence and hospitalization rate of acute exacerbations of COPD compared to conventional treatment? What are the effects of these interventions on 6-minute walk distance, all-cause mortality, lung function, quality of life, and treatment adherence? Researchers will compare a) conventional treatment, b) OPEP therapy, c) aerobic exercise training, and d) OPEP therapy combined with aerobic exercise training to see if OPEP therapy and/or aerobic exercise training improve pulmonary rehabilitation outcomes. Participants will: Receive assigned intervention based on the study arm (conventional treatment, OPEP therapy, aerobic exercise, or combined therapy). Use respiratory training devices and/or wearable monitoring devices as required by their assigned group. Follow training plans and therapy schedules. Attend follow-up visits at 1 month, 2 months, 6 months, 12 months, and 24 months. Complete questionnaires and undergo assessments (e.g., lung function tests, 6-minute walk tests) at baseline and follow-up visits.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
312
-Patients are provided with a networked handheld respiratory training device. -Patients are provided with a wearable device for monitoring data. -Patients receive an OPEP training plan and instructions on using the respiratory training device. -Training on the OPEP device is conducted: -Inpatients: Twice daily training during hospitalization. -Outpatients: At least 3 training sessions in the clinic after enrollment. -Treatment compliance is monitored remotely via the IoT system for 8 weeks. -Patients are scheduled for regular follow-up visits at 1 month, 2 months, 6 months, 12 months, and 24 months (with a window of ±7 days for each visit).
-Patients are provided with a wearable device for monitoring data. -Patients receive an aerobic exercise training plan and instructions on using the device. -Exercise training is conducted: -Inpatients: Daily aerobic exercise during hospitalization. -Outpatients: At least 3 training sessions in the clinic after enrollment. -Treatment compliance is monitored remotely via the IoT system for 8 weeks. -Patients are scheduled for regular follow-up visits at 1 month, 2 months, 6 months, 12 months, and 24 months (with a window of ±7 days for each visit).
Sir Run Run Shaw Hospital Zhejiang University School of Medicine
Hangzhou, Zhejiang, China
Incidence of AECOPD
Incidence of moderate to severe acute exacerbations of Chronic Obstructive Pulmonary Disease (AECOPD). Acute exacerbation of COPD is defined according to the Chinese expert consensus on diagnosis and treatment of acute exacerbation of chronic obstructive pulmonary disease (revised edition 2023)
Time frame: Over the 24-month follow-up period
Hospitalization Rates of AECOPD
Hospitalization rate of moderate to severe acute exacerbations of Chronic Obstructive Pulmonary Disease (AECOPD). Acute exacerbation of COPD is defined according to the Chinese expert consensus on diagnosis and treatment of acute exacerbation of chronic obstructive pulmonary disease (revised edition 2023)
Time frame: Over the 24-month follow-up period
6-Minute Walk Distance
Measures the distance a participant can walk in six minutes as an indicator of functional exercise capacity. Higher is better.
Time frame: 1, 2, 6, 12, 24 months, and over 24 months
All-Cause Mortality
Time frame: 24 months
Number of Acute Exacerbations
Total count of acute exacerbation events experienced by each participant.
Time frame: 1, 2, 6, 12, 24 months, and over 24 months
Proportion of Participants with ≥2 Acute Exacerbations
Percentage of participants experiencing two or more acute exacerbations within 24 months.
Time frame: 24 months
Time to First Acute Exacerbation
Duration from study start to the first recorded acute exacerbation for each participant.
Time frame: 24 months
COPD Assessment Test (CAT) Score
Self-reported measure of health status in COPD patients, assessed using the CAT questionnaire. Higher scores indicate a greater impact of COPD on a patient's daily life.
Time frame: 1, 2, 6, 12, and 24 months
Modified Medical Research Council (mMRC) Dyspnea Score
Patient-rated scale assessing the severity of breathlessness. Higher grade indicates higher severity.
Time frame: 1, 2, 6, 12, and 24 months
St. George's Respiratory Questionnaire (SGRQ) Score
Quality of life assessment specific to respiratory diseases. Higher scores reflect worse health-related quality of life.
Time frame: 1, 2, 6, 12, and 24 months
Changes in Lung Function Parameter-FVC
Forced Vital Capacity (FVC) measured in Liters
Time frame: 1, 2, 6, 12, and 24 months
Changes in Lung Function Parameter-FEV1
Forced Expiratory Volume in 1 Second (FEV1) measured in Liters
Time frame: 1, 2, 6, 12, and 24 months
Changes in Lung Function Parameters - FEV1 predicted
Predicted Forced Expiratory Volume in 1 second (FEV1 predicted) measured in percentage, calculated using GLI-asian equation
Time frame: 1, 2, 6, 12, and 24 months
Changes in Lung Function Parameters - FEV1/FVC ratio
Forced Expiratory Volume in the first second to Forced Vital Capacity (FEV1/FVC ratio), percentage.
Time frame: 1, 2, 6, 12, and 24 months
Changes in Lung Function Parameters - PEF
Peak Expiratory Flow (PEF) measured in L/min
Time frame: 1, 2, 6, 12, and 24 months
Changes in Lung Function Parameters - MMEF
Maximum Mid-Expiratory Flow (MMEF) percentage of predicted normal
Time frame: 1, 2, 6, 12, and 24 months
Changes in Blood Gas Parameters - pH
In arterial blood gas test, pH is a measurement of the acid-base balance of the blood. A normal blood pH range is between 7.35 and 7.45. A pH below 7.35 indicates acidosis, while a pH above 7.45 indicates alkalosis. pH has no units.
Time frame: 1, 2, 6, 12, and 24 months
Changes in Blood Gas Parameters - PaO2
Partial pressure of oxygen (PaO2), in blood gas analysis measures the amount of dissolved oxygen in arterial blood. It's an indicator of oxygenation and is measured in millimeters of mercury (mmHg). A normal PaO2 range is 80-100 mmHg.
Time frame: 1, 2, 6, 12, and 24 months
Changes in Blood Gas Parameters - PaCO2
Partial pressure of carbon dioxide (PaCO2), is a measure of the amount of dissolved carbon dioxide in arterial blood. It's a key indicator of ventilation status, essentially reflecting how well the lungs are removing CO2. It is measured in millimeter mercury (mmHg) and a normal PaCO2 range is 35-45 mmHg.
Time frame: 1, 2, 6, 12, and 24 months
Changes in Blood Gas Parameters - PaO2/FiO2
PaO2/FiO2 ratio is the ratio of arterial oxygen partial pressure (PaO2 in mmHg) to fractional inspired oxygen (FiO2 expressed as a fraction, not a percentage).
Time frame: 1, 2, 6, 12, and 24 months
Changes in Blood Gas Parameters - HCO3
HCO3 refers to the bicarbonate level in the blood, which is a crucial component of acid-base balance. A normal HCO3 range on an ABG is typically between 22 and 26 mEq/L.
Time frame: 1, 2, 6, 12, and 24 months
Treatment Compliance
Evaluation of participants' adherence to prescribed treatments and protocols throughout the study using device data and aerobic exercise records.
Time frame: 1, 2, 6, 12, and 24 months
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