Active clinical trials for "Pulmonary Disease, Chronic Obstructive"

The purpose of this study is to investigate the effect of 500mcg roflumilast vs placebo on exacerbation rate and pulmonary function as well as quality of life in patients with chronic obstructive pulmonary disease (COPD).

The purpose of this study is to examine whether breathing helium-hyperoxia during exercise in a pulmonary rehabilitation program can improve the exercise tolerance and health related quality of life of patients with Chronic Obstructive Pulmonary Disease (COPD).

The study was designed to obtain data about the efficacy and safety of 3 doses of indacaterol (150, 300, and 600 µg) in Japanese patients with chronic obstructive pulmonary disease (COPD) so that optimal dose(s) could be chosen for testing in later studies.

A clinical study to evaluate the efficacy and safety of MK0633 in patients with Chronic Obstructive Pulmonary Disease (COPD).

This study will investigate the safety and tolerability of inhaled doses of GSK233705 with a new formulation.

This study evaluated the effect of inhaled aclidinium bromide on exercise endurance and in reducing resting and dynamic lung hyperinflation in patients with moderate to severe COPD. It was 9 weeks in duration, consisting of; a 2-week run-in period, 6 weeks of double-blind treatment, and a 1-week follow-up phone call. All patients meeting the eligibility criteria were randomized to one of two treatment groups: aclidinium bromide or placebo.

Dietary magnesium (Mg) intake has been shown to be independently related to lung function, airway reactivity, and respiratory symptoms in the general population. Inhaled Mg and IV Mg administration have been shown to promote bronchodilation and to improve lung function in asthmatic patients. Some studies have suggested that COPD patients exhibit decreased body levels of Mg. The purpose of the present study was to investigate the effects of acute IV Mg loading on parameters of respiratory function and maximal exercise capacity of stable COPD patients.The study hypothesis is that Mg administration will be associated to improvements on airflow and vasodilation leading to improvements of pulmonary function and exercise performance.

Sildenafil is a phosphodiesterase-5 inhibitor that has been approved for the treatment of pulmonary arterial hypertension with orphan drug designation. Sildenafil modulates the nitric oxide (NO) pathway in the vessel wall. Since this pathway is impaired in pulmonary arteries of patients with pulmonary hypertension (PH) associated with chronic obstructive pulmonary disease (COPD), we hypothesized that sildenafil might improve pulmonary hemodynamics and increase exercise tolerance in this condition. However, in COPD sildenafil may also impair gas exchange due to the inhibition of pulmonary hypoxic vasoconstriction. The research project is aimed to evaluate these effects. It is a prospective, randomized, double-blind study to evaluate the acute effects of a single dose of 20 or 40 mg of sildenafil on gas exchange and pulmonary hemodynamics. Subjects: 20 patients (10 in each group). Measurements: pulmonary hemodynamics, arterial blood gasses and ventilation-perfusion distributions; at rest and during sub-maximal exercise.

This trial is a randomized, double-blind, parallel-group, multicenter study to be conducted in the United States. The purpose of the study is to evaluate the rate of exacerbations of chronic obstructive pulmonary disease (COPD) following hospital discharge for an acute exacerbation of COPD, in patients receiving either fluticasone propionate/salmeterol combination product 250/50mcg BID or salmeterol 50mcg BID via DISKUS™ over 29 weeks. The study population will include patients hospitalized for an acute exacerbation of COPD. The target enrolment is 720 subjects at 80 study centers. The primary endpoint is the rate of exacerbation requiring hospitalization that occur more than 21 days post-discharge, emergency room visit or physician's office visit for an exacerbation of COPD requiring treatment with oral corticosteroids or oral corticosteroids and antibiotics. The secondary endpoint is the rate of COPD exacerbation requiring treatment with oral corticosteroids, antibiotics, and/or hospitalization (alone and in combination). Related efficacy endpoints include, time to first exacerbation of COPD requiring treatment with oral corticosteroids, antibiotics, and/or hospitalization (alone and in combination), pre-dose AM FEV1, the probability of premature withdrawal of subject from the study, and supplemental albuterol use, change in biomarkers of inflammation, including, surfactant protein D (SP-D), clara cell secretory protein 16 (CC-16) and high sensitivity C-reactive protein (hs-CRP). Health outcome assessments include domain scores evaluation for fatigue, dyspnea, emotional function and mastery, measured with the Chronic Respiratory Disease Questionnaire self-administered standardized format (CRQ-SAS); and symptoms (congestion, cough, phlegm, mucus, chest discomfort, shortness of breath and sleep disturbance), assessed by the EXAcerbations of Chronic pulmonary disease Tool (EXACT). Albuterol will be supplied to study subjects for use as-needed throughout the study. Safety will be assessed by monitoring of adverse events.

OBJECTIVE: To determine whether a long-term maintenance program after respiratory rehabilitation, in contrast to the usual minimal maintenance therapy, improves the cost-effectiveness through: a.- maintaining long term effects in terms of effort capacity, HRQL, and reduced exacerbations b.- reducing the total cost of care to patients, largely through reduction of exacerbations. MATERIAL AND METHODS: multi-center (4 hospitals) prospective randomized controlled study that will include 150 patients with moderate-severe COPD (age <75; BODE 4-10) with a 3 years follow-up. All patients will receive an initial in-hospital rehabilitation program which includes: Education, Physiotherapy, lower and upper extremities training and respiratory muscles training. Following completion of this program, patients will undergo concealed randomization to one of two maintenance strategies:1.-an intensive maintenance program (GR1) 2.- a standard, minimal monitoring program (GR2). On the intensive maintenance program (GR1) the physiotherapist will call once a week as a reminder and the patient will attend the hospital once a week . A physiotherapist will supervise the weekly in-hospital exercise and he/she will check if the patient is properly undergoing the rehabilitation treatment. OUTCOMES: 1.- Clinical: dyspnea (area of CRQ questionnaire), HRQL (CRQ, SF 36); Effort capacity (6minute Walking Test), BODE index; 2.- Economical: direct costs (programs); indirect costs (exacerbations, admissions); comparison of GR1 and GR2 costs; EXPECTED OUTCOMES: reduction of dyspnea, improvement of HRQL, effort capacity and BODE index, and reduction of health expenditures in GR1 compared to GR2.