A Multicenter, Randomized, Double-blind, Placebo-controlled Phase III Clinical Study to Evaluate the Safety and Efficacy of Human Interferon α1b Inhaled Solution in the Treatment of Respiratory Syncytial Virus Lower Respiratory Tract Infection in Children.
To evaluate the efficacy and safety of interferon α1b (GB05) in the treatment of children under 2 years of age with respiratory syncytial virus infection.
• 2 months ≤ age ≤ 2 years of age (including the correction age of premature babies, after the correction of the monthly age = (Current Date-birth date)-\[(37 weeks-fetal age)/4\], gender is not limited;
• Comply with the following diagnostic criteria:
⁃ 1\) RSV real -time reversal transcript polymerase chain reaction (RT PCR) positive, or quantitative QPCR detection; Show the positive of RSV infection; 2) Cough and/or asthma, lung auspicious pitch and/or wet sounds; 3) Chest imaging examination shows the dot -shaped shadow and/or thick lung texture/slightly/more and/or emphysema and/or the signs of inflammation around the bronchial.
⁃ 3\. Signing the informed consent of the child's disease distance within 72 hours (cough, breathing, fever); 4. The severity of the condition of capillary bronchitis is moderate or severe; 5. The parents of the child, or the legal guardian, or the legal guardians have fully understood the relevant information of this experiment and the possible benefits and risks of the subject's expectations, and agreed that the child to participate in this experiment and voluntarily signed the informed consent.