Inhaler Adherence and Inhalation Technique Assessed by a Smart Spacer in Patients with Severe Asthma on Biologics

Participants' inhalation medication adherence and inhalation technique will be monitored using a smart spacer. Their usual medication regime will be continued and they will not receive information about their adherence or inhalation technique measured by the spacer during the follow-up year (except for any interventions that will be done in standard care).