Chronic Obstructive Pulmonary Disease Clinical Trial
Official title:
Hydrogen Peroxide and Nitrite Reduction in Exhaled Breath Condensate of COPD Patients
The aim of the study is to investigate the effect of inhaled apocynin on ROS (reactive oxygen species) and NOS (reactive nitrogen species) synthesis in 13 COPD patients. Effects of nebulized apocynin (0.5 mg/ml, 6 ml) were assessed in exhaled breath condensate (EBC) after 30, 60 and 120 minutes.
Apocynin reduced hydrogen peroxide concentration in exhaled breath condensate 60 and 120 minutes after apocynin nebulization comparing to placebo (0.43 μM vs. 0.59 μM and 0.41 μM vs. 0.58 μM respectively, p<0.05). Interestingly, apocynin caused decrease of NO2- concentration 30, 60 and 120 minutes after apocynin inhalation (3.9 μM vs. 4.5 μM, 3.8 μM vs. 4.5 μM and 3.7 μM vs. 4,4 μM respectively, p<0.05) comparing to placebo, but did not cause any significant changes in concentration of NO3- in any timepoint (p>0.05). No influence of apocynin on safety parameters, and no adverse effects has been observed. ;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment
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