BACKGROUND Electronic inhaler monitoring devices (EMDs) vary in their functions and can record actuation, send reminders, and/or support inhalation technique.

OBJECTIVE To determine which EMD attributes are valued most by people with asthma and health professionals (HCPs).

METHODS An international Discrete Choice Experiment (DCE) across 6 countries (Netherlands, New Zealand, Australia, UK, Singapore and Ireland) using Potentially All Pairwise RanKings of all possible Alternatives (PAPRIKA) approach was developed. The nine EMD attributes were: aesthetics, compatibility with different devices, providing active feedback on inhalation (technique), monitoring inhalation and technique, visibility and ownership of data, connectivity with other data, sustainability, technical support, and costs. Patients ?18 years with asthma using a regular inhaler and HCPs involved in asthma care were invited to participate in an online survey to rank the EMD attributes ranked from 1 to 9, with a lower number reflecting greater importance and 9 least important.

RESULTS To date, 377 respondents (221 patients and 154 HCPs) have completed the DCE. For patients, the most important attribute was not having to pay for the EMD, mean 3.4 ± 2.5 (SD), followed by visibility and ownership of the data by patients and HCPs (mean 3.7 ± 2.1 SD). HCPs valued the ability to monitor inhalation and technique (mean 3.9 ± 2.2 SD) and the ability to obtain active feedback on inhalation and technique (mean 3.9 ± 2.2 SD) the most.

CONCLUSION Patients and HCPs differ in their preference for EMD features which could help to inform the future design of EMDs and to allow better integration of this technology into everyday practice.