Study on the use of multi-compartment compliance aids to improve blood pressure values in hypertensive patients

Objectives: To analyse the improvement of adherence in non-adherent patients with uncontrolled HT, polymedicated and older than 55 years after the use, or not, of Multicompartment compliance aids (MCA).

Design: Longitudinal research (6 month). Levels of adherence to treatment were analysed using an adapted version of Morisky-Green test, counting of returned medication (MCA group) and blood pressure (BP) values. Site: Multicentre study in 35 community pharmacies in Spain. Participants: 195 participants (88 MCA group and 107 control group) older than 55 years, polymedicated, non-adherent to medication, with uncontrolled hypertension and using electronic prescription. Interventions: MCA group received their medication in MCA while control group received their medication as usual. Main measurements: Systolic BP/Diastolic BP was recurrently measured with a digital tensiometer in both groups.

Results: MCA group obtained a significant decrease in BP values compared to the control group (Systolic BP decreased by 18.3 mmHg in the MCA group vs. 9.9 mmHg in the control group and Diastolic BP by 9.9 mmHg vs. 8.9 mmHg). Both groups increased their adherence to over 90%.

Conclusions: The use of MCA controlled BP levels in almost 50% of the participants. For this fact, MCA is postulated as a good tool (cost-effective, well tolerated by users, easy to use ...) to improve the adherence of patients and control their hypertension, although more studies are necessary.