Amphoe Mueang Rayong

Researchers are conducting a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the safety and effectiveness of tezepelumab in adults aged 40 to 80 years with moderate to very severe chronic obstructive pulmonary disease (COPD). Participants must have experienced at least two moderate or one severe COPD exacerbations in the year before joining and be receiving inhaled maintenance therapy. The study focuses on adults who continue to experience symptoms despite current treatments and aims to assess the impact of tezepelumab on COPD exacerbations. Participants will be randomly assigned to receive monthly subcutaneous injections of either one of two doses of tezepelumab or a placebo. Treatment will last for a minimum of 52 weeks and may extend up to 76 weeks. After the treatment period, there will be a 12-week safety follow-up phase to monitor participants after stopping the study drug. The study compares tezepelumab to placebo to determine its efficacy and safety over this extended period. During the study, participants will undergo regular assessments to monitor their COPD status and any exacerbations. The main outcome measured is the annual rate of moderate or severe COPD exacerbations from the start of treatment through up to 76 weeks. Safety and tolerability will also be closely monitored throughout the treatment and follow-up periods. This long-term involvement ensures comprehensive data on how tezepelumab affects COPD progression and exacerbation frequency.