Adherence to self-administered biologic disease-modifying antirheumatic drugs across health-system specialty pharmacies.

PURPOSE: Adherence to self-administered biologic disease-modifying antirheumatic drugs (bDMARDs) is necessary for therapeutic benefit. Health-system specialty pharmacies (HSSPs) have reported high adherence rates across several disease states; however, adherence outcomes in rheumatoid arthritis (RA) populations have not yet been established. METHODS: We performed a multisite retrospective cohort study including patients with RA and 3 or more documented dispenses of bDMARDs from January through December 2018. Pharmacy claims were used to calculate proportion of days covered (PDC). Electronic health records of patients with a PDC of <0.8 were reviewed to identify reasons for gaps in pharmacy claims (true nonadherence or appropriate treatment holds). Outcomes included median PDC across sites, reasons for treatment gaps in patients with a PDC of <0.8, and the impact of adjusting PDC when accounting for appropriate therapy gaps. RESULTS: There were 29,994 prescriptions for 3,530 patients across 20 sites. The patient cohort was mostly female (75%), with a median age of 55 years (interquartile range [IQR], 42-63 years). The median PDC prior to chart review was 0.94 (IQR, 0.83-0.99). Upon review, 327 patients had no appropriate treatment gaps identified, 6 patients were excluded due to multiple unquantifiable appropriate gaps, and 420 patients had an adjustment in the PDC denominator due to appropriate treatment gaps (43 instances of days' supply adjusted based on discordant days' supply information between prescriptions and physician administration instructions, 11 instances of missing fills added, and 421 instances of clinically appropriate treatment gaps). The final median PDC after accounting for appropriate gaps in therapy was 0.95 (IQR, 0.87-0.99). CONCLUSION: This large, multisite retrospective cohort study was the first to demonstrate adherence rates across several HSSPs and provided novel insights into rates and reasons for appropriate gaps in therapy.

Comparison of provider satisfaction with specialty pharmacy services in integrated health-system and external practice models: A multisite survey.

PURPOSE: The purpose of this study is to obtain insight into providers' satisfaction with services offered by health-system integrated specialty pharmacies and to determine whether providers' perceptions of services offered under an integrated model differ from perceptions of external specialty pharmacy services. METHODS: A multi-site, cross-sectional, online survey of specialty clinic healthcare providers at 10 academic health systems with integrated specialty pharmacies was conducted. The questionnaire was developed by members of the Vizient Specialty Pharmacy Outcomes and Benchmarking Workgroup and was pretested at 3 pilot sites prior to dissemination. Prescribers of specialty medications within each institution were identified and sent an email invitation to participate in the study that included a link to the anonymous questionnaire. Respondents were asked to rate their agreement with 10 statements regarding quality of services of integrated and external specialty pharmacies on a 5-point scale (1 = strongly disagree, 5 = strongly agree). An analysis to determine differences in providers' overall satisfaction with the integrated and external specialty pharmacy practice models, as well as differences in satisfaction scores for each of the 10 statements, was performed using paired-samples t tests. RESULTS: The mean (SD) score for overall satisfaction with integrated specialty pharmacies was significantly higher than the score for satisfaction with external specialty pharmacies: 4.72 (0.58) vs 2.97 (1.20); 95% confidence interval, 1.64-1.87; P < 0.001. Provider ratings of the integrated specialty pharmacy model were also higher for all 10 items evaluating the quality of services (P < 0.05 for all comparisons). CONCLUSION: The study results confirm that the health-system integrated specialty pharmacy practice model promotes high rates of provider satisfaction with services and perceived benefits.