| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
| CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD). |
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| MedDRA Classification |
| E.1.3 | Condition being studied is a rare disease | No |
| E.2 Objective of the trial |
| E.2.1 | Main objective of the trial |
| Oxidative stress as judged by quantification of carbonyl groups on muscle (quadriceps and external intercostals) biopsy. |
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| E.2.2 | Secondary objectives of the trial |
To evaluate the effect of N-acetylcysteine on: - Exercise capacity (6 Minute Walking distance, Maximal Tolerated Load in the cycloergometrer) - Peripheral (Quadriceps) and Respiratory muscle strength - Body composition (Fat free mass and BMI (Body Mass Index) - Blood oxidative stress To evaluate the safety of NAC at high doses in COPD patients
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| E.2.3 | Trial contains a sub-study | Information not present in EudraCT |
| E.3 | Principal inclusion criteria |
This study will include 30 male ex-smokers between 18-65 years with stable severe COPD, (FEV1/FVC<70%, FEV1<50% predicted) as defined by the Global Initiative for chronic Obstructive Lung Disease guidelines. Informed written consent will be obtained.
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| E.4 | Principal exclusion criteria |
Exclusion criteria will be unstable COPD (i.e., exacerbation in the last 2 months), long-term supplemental oxygen and NAC treatment, neuromuscular disease, cardiac failure, diabetes mellitus, arthritis, phenylcetonuria, vascular disease and alcoholism or with a clinical condition or relevant analytical alterations. None of the patients can take systemic oral steroid medication in the 6 months before the study, and all medication regimens remained unchanged during the study period. Will be excluded supplementation with antioxidants or vitamins. Also patients with NAC allergy will be excluded.
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| E.5 End points |
| E.5.1 | Primary end point(s) | |
| E.6 and E.7 Scope of the trial |
| E.6 | Scope of the trial |
| E.6.1 | Diagnosis | Information not present in EudraCT |
| E.6.2 | Prophylaxis | Information not present in EudraCT |
| E.6.3 | Therapy | Yes |
| E.6.4 | Safety | Yes |
| E.6.5 | Efficacy | Yes |
| E.6.6 | Pharmacokinetic | Information not present in EudraCT |
| E.6.7 | Pharmacodynamic | Information not present in EudraCT |
| E.6.8 | Bioequivalence | Information not present in EudraCT |
| E.6.9 | Dose response | Information not present in EudraCT |
| E.6.10 | Pharmacogenetic | Information not present in EudraCT |
| E.6.11 | Pharmacogenomic | Information not present in EudraCT |
| E.6.12 | Pharmacoeconomic | Information not present in EudraCT |
| E.6.13 | Others | Information not present in EudraCT |
| E.7 | Trial type and phase |
| E.7.1 | Human pharmacology (Phase I) | No |
| E.7.1.1 | First administration to humans | Information not present in EudraCT |
| E.7.1.2 | Bioequivalence study | Information not present in EudraCT |
| E.7.1.3 | Other | Information not present in EudraCT |
| E.7.1.3.1 | Other trial type description | |
| E.7.2 | Therapeutic exploratory (Phase II) | Information not present in EudraCT |
| E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
| E.7.4 | Therapeutic use (Phase IV) | Information not present in EudraCT |
| E.8 Design of the trial |
| E.8.1 | Controlled | Yes |
| E.8.1.1 | Randomised | Yes |
| E.8.1.2 | Open | Information not present in EudraCT |
| E.8.1.3 | Single blind | Information not present in EudraCT |
| E.8.1.4 | Double blind | Yes |
| E.8.1.5 | Parallel group | Yes |
| E.8.1.6 | Cross over | Information not present in EudraCT |
| E.8.1.7 | Other | Information not present in EudraCT |
| E.8.2 | Comparator of controlled trial |
| E.8.2.1 | Other medicinal product(s) | Information not present in EudraCT |
| E.8.2.2 | Placebo | Yes |
| E.8.2.3 | Other | Information not present in EudraCT |
| E.8.3 |
The trial involves single site in the Member State concerned
| No |
| E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
| E.8.5 | The trial involves multiple Member States | Yes |
| E.8.6 Trial involving sites outside the EEA |
| E.8.6.1 | Trial being conducted both within and outside the EEA | No |
| E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
| E.8.7 | Trial has a data monitoring committee | Information not present in EudraCT |
| E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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| E.8.9 Initial estimate of the duration of the trial |
| E.8.9.1 | In the Member State concerned years | 0 |
| E.8.9.1 | In the Member State concerned months | 9 |
| E.8.9.1 | In the Member State concerned days | |