• Curr Med Res Opin · Jun 2020

    Observational Study

    Clinical characteristics, treatment patterns, disease burden, and persistence/adherence in patients with asthma initiating inhaled triple therapy: real-world evidence from Japan.

    • Takeo Suzuki, Jolyon Fairburn-Beech, Keiko Sato, and Toshihiko Kaise.
    • Value Evidence Outcomes Department, Japan Development Division, GlaxoSmithKline K.K, Tokyo, Japan.
    • Curr Med Res Opin. 2020 Jun 1; 36 (6): 1049-1057.

    AbstractObjectives: To help optimize triple therapy use, treatment patterns and disease burden were investigated in patients in Japan with persistent asthma who initiated multi-inhaler triple therapy (inhaled corticosteroid/long-acting β2-agonist/long-acting muscarinic antagonist; ICS/LABA/LAMA).Methods: This retrospective, observational cohort study using health insurance claims data included adults with persistent asthma who initiated triple therapy in 2016. Patients who were prescribed ICS/LABA in 2016 were included as an ICS/LABA-matched cohort. Patients were stratified into those with asthma only and those with asthma and chronic obstructive pulmonary disease (COPD) codes (asthma-COPD overlap [ACO]). Patient data from 1-year prior to 1 year post index date were analyzed.Results: For patients with asthma only in the triple therapy and ICS/LABA cohorts, baseline demographics were similar. A higher proportion of the triple-therapy cohort than the ICS/LABA cohort was receiving high-dose ICS at index (68.2% and 27.6%, respectively), and had experienced an exacerbation in the last year (64.0% and 29.4%, respectively). The proportion of patients with asthma only who developed any exacerbation was lower in the year following initiation of triple therapy compared with the year prior to initiation of triple therapy (45.8% vs 64.0%, respectively). For asthma only patients receiving triple therapy, the mean (standard deviation) proportion of days covered and medication possession ratio was 0.51 (0.36) and 0.86 (0.16), respectively. Similar trends were seen in patients with ACO in the triple-therapy and ICS/LABA cohorts.Conclusion: Evidence from this study may serve as a reference for the use of inhaled triple therapy for asthma.

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