Clinical Trial of the Efficacy and Safety of Raphamin in the Treatment of ARVI in Children Aged 3-12 Years

Acute Respiratory Viral Infection

respiratory viral infection, children, aged 3-12 years

Multicenter double-blind placebo-controlled randomized in parallel groups clinical trial.

Design: a multicenter, double-blind, placebo-controlled, randomized, parallel-group clinical trial. The trial will enroll outpatients of either gender aged 3 to 12 years with clinical manifestations of acute respiratory viral infection (ARVI) within the first 24 hours after the disease onset. Patient enrollment will be conducted in 2 stages during the seasonal incidence of ARVI. First, children aged 6-12 years will be enrolled in the trial. Once the required number of patients is reached, an "unblinded" interim analysis with the primary efficacy endpoint assessment and safety analysis will be performed. Based on the data from the unblinded interim analysis, a decision will be made whether the age range of enrollment can be expanded from 3 to 12 years. Patient enrollment will not be stopped until the results of the "unblinded" interim analysis are available. After the parent/adopter signs the information sheet and informed consent form for the patient's parents/adopters to participate in the clinical trial, the medical history will be collected, thermometry, objective examination, laboratory tests will be performed, and concomitant therapy will be recorded. The severity of ARVI symptoms will be assessed using a 4-point scale. The nasopharyngeal swabs for PCR diagnosis and verification of respiratory viruses will be performed prior to therapy to confirm the viral etiology of ARVI. If a patient meets all inclusion criteria and does not have any exclusion criteria, at Visit 1 (Day 1), they will be randomized into one of two groups: Group 1 patients will receive Raphamin according to the dosage regimen for 5 days; Group 2 patients will receive Placebo using the Raphamin dosage regimen for 5 days. The trial will utilize an electronic patient diary (EPD) where the patient will make daily records of morning and evening axillary body temperature (measured with a classic mercury-free thermometer) and symptoms of the disease (ARVI Symptom Severity Score). In addition, antipyretic dosing (if applicable) as well as any possible worsening of the patient's condition (if applicable, to assess safety / to record adverse events) will also be recorded in the patient diary. The investigator will instruct the parent/adopter on how to complete the diary. At Visit 1, the parent/adopter together with the physician will record the severity of ARVI symptoms and body temperature in the diary. The patient will be observed for 14 days (screening, randomization - up to 1 day, treatment - 5 days, follow-up - up to 2 days; deferred "phone visit" - day 14). During the treatment and follow-up period, patients/physicians will pay 3 visits, and the fourth "phone visit" will be scheduled additionally: 1) physician/patient visits - on days 1, 5 and 7 (Visits 1, 2 and 3) - at the health center or at home; 2) a phone "visit" by the physician (Visit 4) - on day 14. During Visits 2 and 3, the physician will perform objective examination, record changes in the disease symptoms, concomitant therapy, and monitor the completion of the diary. During Visit 3, compliance will be assessed and laboratory tests will be performed. A phone "visit" will be performed to interview the parent/adopter about the patient's condition, presence/absence of secondary bacterial/viral complications, and use of antibiotics. Symptomatic therapy and therapy for concomitant diseases will be permitted during the trial except for the drugs listed under "Prohibited Concomitant Treatment".

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