Hailie Sensor® (Adherium, Auckland, New Zealand)
Similar to the Propeller sensor, the Hailie sensor can also track both
preventer and reliever use, logging the date and time of inhaler
actuation. The Hailie is paired via Bluetooth to a smartphone
application and provides notifications and reminders. The application
shows bar charts providing instant feedback on adherence and reliever
use, which can be sent to an HCP portal, through a secure cloud(37, 38).
The Hailie sensor is currently limited to use with pMDI, Diskus® and
Turbohaler® devices. The next generation Hailie sensor (currently only
available for Symbicort® HFA) also includes physiological measures that
detect inspiratory flow, inhaler shaking and inhaler orientation(37).
The SmartTrack device has been rebranded to Hailie and clips around a
pMDI. The SmartTrack inhaler has been shown to improve adherence to ICS
in both adult and paediatric asthma patients by reminder notifications,
with studies demonstrating significant reductions in severe
exacerbations and fewer hospitalisations(39, 40).
The SmartTurbo which is specifically for use with the Turbohaler device
is able to detect the presence or absence of the cap on the mouthpiece
of the inhaler. Data is uploaded,
recording pairs of anticlockwise and clockwise turns as inhaler
actuations(41). The use of the SmartTurbo has been validated by
comparing actuations recorded on the EMD to paper diaries and found to
be highly sensitive over a 12-week period(41). In a 52-week randomised
controlled trial, there were no reports of device failures or
inaccuracies, suggesting that this is a reliable tool to assess
Turbohaler usage(42).