Study of Efficacy and Safety of LOU064 in Inadequately Controlled Asthma Patients

This was a proof-of-concept study to evaluate the efficacy of LOU064 in patients with inadequately controlled asthma. All subjects were randomized with 3:2 ratio to receive LOU064 100 mg once daily or LOU064 matching placebo for 12 weeks with standard background therapy of budesonide 80 µg/formoterol 4.5 µg two inhalations twice a day (b.i.d).

This was a non-confirmatory, multi-center, randomized, placebo-controlled, subject- and investigator-blinded, parallel-group study to evaluate the efficacy and safety of LOU064 in patients with inadequately controlled asthma who were on a standardized background therapy of inhaled corticosteroid plus long acting beta-2 agonist (ICS/LABA). The study included: * a Screening period of up to 2 weeks to assess eligibility. * a Run-in period of minimum 3 weeks and maximum 5 weeks where patients discontinued their current asthma therapy and were placed on budesonide 80 μg/formoterol 4.5 μg delivered by dry powder inhaler, two inhalations twice a day (b.i.d). * a Treatment period of 12 weeks. All subjects were randomized 3:2 to receive LOU064 100 mg once daily or placebo for 12 weeks with standard background therapy of budesonide 80 μg/formoterol 4.5 μg, two inhalations b.i.d. * a Follow-up period of 3 weeks following the last dose of study drug. Results from the interim analysis did not provide sufficient evidence of efficacy of LOU064 in inadequately controlled asthma and the sponsor decided to terminate early the study in April 2020. The median duration of exposure (12.0 weeks for LOU064 and 11.7 weeks for placebo) was close to the treatment target, as most of the subjects had completed treatment when the study was terminated.