Chronic Obstructive Pulmonary Disease
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.Patients with documented COPD based on the following criteria: •Smoking history of at least 10 pack-years •Decreased Tiffeneau index (FEV1/(FVC =65 years) yes F.1.3.1 Number of subjects for this age range
Exclusion criteria
Exclusion criteria: 1.Unstable patients who developed an exacerbation during the last 8 weeks 2.Patients who are current smokers or stopped less than 1 month 3.Patients who are allergic to acetylcysteine or to another element of the product 4.Patients with phenylketonurie or an untreated active peptic ulcer 5.Patients with any stage kidney and/or heart insufficiency or hypertension 6.Patients already treated with NAC for more than 6 months or during the last 3 months 7.Patients on continuous treatment with oral, inhalation, intravenous or intramuscular corticosteroids 8.Patients who are pregnant or are breast-feeding 9.Patients who are treated with orally administered cefalosporines 10.Patients using supplements containing antioxidants as vitamins C or E
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: The primary objectives of this study are to assess the effect of high dose NAC (1800 mg): •On small airways by measuring the total and peripheral airway resistance calculated with CFD •On oxidative stress by measuring exhaled NO and oxidative stress markers (CRP, erythrocyte sedimentation rate, glutathione, GPX, SOD, IL-8, IL-6 and 8-isoprostane) in blood and EBC measured at baseline, after 12 weeks of placebo and 12 weeks of NAC.;Secondary Objective: The secondary objectives of this study are to assess: •Dynamic and static lung volumes by spirometry, body plethysmography and diffusion •Quality of life by the SGRQ •Tolerability and safety of high dose NAC. ;Primary end point(s): Effect of delivery treatment | — |
Countries
Belgium