Thabazimbi

Researchers are evaluating the safety and effectiveness of tezepelumab in children aged 5 to under 12 years who have severe uncontrolled asthma. These children must be on medium to high doses of inhaled corticosteroids along with at least one other asthma controller medication, with or without oral corticosteroids. This phase 3, multicenter, double-blind, placebo-controlled study aims to better understand how tezepelumab affects asthma control in this pediatric population. Participants will be randomly assigned in a 2:1 ratio to receive either subcutaneous injections of tezepelumab or a matching placebo for 52 weeks during the double-blind treatment period. Before this, there is a 4 to 6 week screening and run-in phase. After the treatment period, a 12-week follow-up phase occurs without treatment. Eligible participants can then join an optional open-label extension, receiving tezepelumab for an additional 104 weeks followed by another 12-week post-treatment follow-up. Throughout the study, participants will have regular assessments including lung function tests, asthma control questionnaires, and monitoring for asthma exacerbations. Researchers will measure the annualized rate of severe asthma flare-ups from the start of treatment to week 52. Safety and treatment adherence will also be closely monitored during all study phases, with total participation potentially extending over two years for those in the extension period.