Chronic obstructive pulmonary disease
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Severe to very severe COPD (forced expiratory volume in one second (FEV1)/forced vital capacity (FVC) of less than 70% and FEV1 percent predicted of less than 50%) (after using a bronchodilator) 2) Clinically stable and able to participate in pulmonary rehabilitation 3) Between 20 and 85 years old 4) Signed the agreement for participation in this study
Exclusion criteria
Exclusion criteria: 1) Malignant tumours 2) Active infection 3) Severe heart disease 4) Hepatic dysfunction (serum aspartate aminotransferase and alanine aminotransferase levels at least twice the upper limit of normal) 5) Renal dysfunction (serum creatinine levels of 2.0 mg/dL or more) 6) Asthma (after the inhalation of salbutamol, 12% or more reversibility compared to the FEV1 before inhalation and 200 mL or more improvement of FEV1) 7) Definitely or possibly pregnant 8) Change in drug regimen within 4 weeks before participation in this study 9) Judged to be unable to participate in this study by their physician.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The evaluations will be done 3 times: i) at Week 4, ii) at Week 8 soon after pulmonary rehabilitation (PR), and iii) at Week 12 (i.e., 4 weeks after the completion of PR). As primary outcomes, we will examine the correlation between the change in exercise capacity (peak oxygen uptake) and the plasma ghrelin level. | — |
Secondary
| Measure | Time frame |
|---|---|
| As secondary outcomes, we will examine the correlations between the changes in exercise capacity (peak oxygen uptake) and i) other blood biomarkers, including plasma vascular endothelial growth factor (VEGF) level, ii) weight, iii) pulmonary function test results, iv) food intake, v) free-living physical activity measured by an accelerometer, vi) DEXA (measurement of lean body mass, body mineral content, and fat mass), vii) symptoms, and viii) respiratory muscle strength. | — |
Countries
Japan
Contacts
National Hospital Organization Toneyama National Hospital, Toyonaka, Japan Dep. of Respiratory Medicine, and Lab. Chief, Lab. of Respiratory Science, Div. of Clinical Research