A Phase 2 Multicenter, Randomized, Open-label Study to Evaluate the Pharmacokinetic, Safety and Efficacy of Peginterferon Alfa-2b Injection in Subjects With Essential Thrombocythemia Who Are Resistant to or Intolerant of Hydroxyurea.
This is a multicenter, randomized, open-label, parallel-controlled, prospective clinical study. It aims to evaluate the efficacy and safety of aerosolized Peginterferon α-2b injection in the treatment of pediatric respiratory syncytial virus pneumonia. The overall study is divided into a screening period, a treatment period, and a follow-up period. Eligible children with respiratory syncytial virus pneumonia will be randomly assigned to the experimental group 1, experimental group 2, and the control group at a ratio of 1:1:1.
• (1)Age: 1 year ≤ age ≤ 3 years; (2) Gender: Both male and female participants are eligible; (3) According to the 9th edition of Zhu Fute's Practical Pediatrics, meet the following diagnostic criteria: a. RSV test positive; b. Clinical manifestations: Fever, cough, wheezing; c. Physical signs: Rapid breathing and moist rales in the lungs; (4) Time: The time from the onset of the child's illness to the signing of the informed consent form is within 72 hours (starting from the occurrence of any symptom such as fever, cough, or wheezing); (5) Informed consent: The legal guardian of the child understands and signs the informed consent form (if the legal guardians are the parents, both parents need to sign together).