Abstract

BackgroundTriple therapy comprising an inhaled corticosteroid, long-acting muscarinic antagonist, and long-acting β2 agonist (ICS/LAMA/LABA) is recommended for chronic obstructive pulmonary disease (COPD) patients at risk of exacerbation. Multiple-inhaler triple therapy (MITT) is associated with poor adherence and persistence; however, these outcomes have not been evaluated for single-inhaler fluticasone furoate/umeclidinium/vilanterol (FF/UMEC/VI). MethodsThis retrospective analysis of the IQVIA PharMetrics Plus claims database identified patients with COPD initiating triple therapy between 18 September 2017 and 30 June 2019. The first date of single-inhaler FF/UMEC/VI dispensing, or first day of overlapping ICS, LAMA, and LABA medications for MITT users, defined the index date. Patients were ≥40 years, had ≥12 months of continuous insurance coverage pre-index (baseline) and ≥6 months’ coverage post-index; those with MITT during baseline were excluded. Inverse probability weighting was used to balance baseline characteristics. Adherence was assessed using proportion of days covered (PDC) and was evaluated using linear and log-binomial models. Persistence (non-persistence identified as >30-day gap between fills) was evaluated using Cox models. Results9942 patients (FF/UMEC/VI: 2782; MITT: 7160) were included. Adherence was significantly higher for FF/UMEC/VI versus MITT users (mean PDC, 0.66 vs. 0.48; p < 0.001), and FF/UMEC/VI users were twice as likely to be adherent (PDC ≥0.8) than MITT users (46.5% vs. 22.3%; risk ratio [95% CI]: 2.08 [1.85–2.30]; p < 0.001). After 12 months, significantly more FF/UMEC/VI users persisted on therapy than MITT users (35.7% vs. 13.9%; hazard ratio [95% CI]: 1.91 [1.81–2.01]; p < 0.001). ConclusionsCOPD patients initiating single-inhaler FF/UMEC/VI had significantly improved adherence and persistence compared with MITT.

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