Effectiveness on adherence to biological drugs and experience of a pharmaceutical intervention based on CMO model in patients with rheumatic disease (AdhER-2 study)

Abstract

We aimed to assess the effectiveness on adherence to treatment with biologic disease modifying anti-rheumatic drugs (b-DMARD) and experience with providers of healthcare of a CMO pharmaceutical intervention care model in subjects with rheu-matoid arthritis, psoriatic arthritis, and ankylosing spondylitis stratified according to their needs. Prospective, single-centre randomized controlled study. The study period was eleven months. Non-compliant patients with rheumatoid arthritis, psoriatic arthritis, and ankylosing spondy-litis treated with b-DMARD were included. Patients were randomized to a control (CG) or intervention group (IG) who received regular or the CMO pharmaceutical intervention model treatment, respec-tively. Baseline and final adherence were determined using medication possession ratio, the Compliance Questionnaire on Rheu-matology, and Morisky Medication Adherence Scale. To assess baseline and final patient experience with providers of healthcare we applied the Chronic Patient Experience Assessment Instrument (IEXPAC). For the IG, one patient (5.6%) was categorized as priority 1, nine (50.0%) as priority 2, and eight (44.4%) as priority 3. Ninety pharmaceutical interventions were carried out (5.1±1.8 interventions / patient). At the end of the study, the IG showed higher fre-quency of patients who adhered to the pharmaceutical intervention (77.8 vs 18.8%; p=0.002) and higher mean IEXPAC score (7.6±1.3 vs 5.8±1.1; p <0.001) in comparison to the CG. Conclusion The CMO pharmaceutical intervention model significantly improves patient adherence to b-DMARD and their experience with the providers of healthcare.