Cough Clinical Trial
Official title:
Montelukast for Postinfectious Cough in Adults
Cough is a common symptom of respiratory medicine clinic patients, which has complex etiology and wide-ranging. Cough is usually divided into three categories by time: acute cough, subacute cough and chronic cough. Subacute has a 3~8 weeks course of disease. Its main etiology is postinfectious cough, which is mostly secondary to viral infection.Considering its overexpression in postinfectious patient, Cysteinyl leukotriene (CysLTs) plays a role in gathering eosinophils to respiratory. The level of FENO has a significant correlation with inflammatory airway eosinophils. While CysLTs overexpressed in vivo, the level of FENO may increase. Montelukast, as CysLTs-receptor-1 antagonists， plays a role of controlling airway inflammation and decrease airway high activity by suppressing the biological activity of CysLTs. It is effective in theory to therapy sub-acute cough by Montelukast, to short the course and to relieve cough symptoms as soon as possible. The aim is to research whether FENO can be used as a biomarker to optimized treatment regimen of sub-acute cough.
Patients in electrical treatment arm were given Montelukast Sodium Tablets (p.o., 10mg, q.d.) . Patients in placebo treatment arm were given placebo tablets(main excipient lactose monohydrate,p.o., 10mg, q.d.).All treatment regimens lasted for 10 days and no other antitussive/decongestant or bronchodilators are given to any patients. ;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment
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