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  • Title: PRIMUS - Prompt Initiation of Maintenance Therapy in the US: A Real-World Analysis of Clinical and Economic Outcomes Among Patients Initiating Triple Therapy Following a COPD Exacerbation.
    Author: Tkacz J, Evans KA, Touchette DR, Portillo E, Strange C, Staresinic A, Feigler N, Patel S, Pollack M.
    Journal: Int J Chron Obstruct Pulmon Dis; 2022; 17():329-342. PubMed ID: 35177901.
    Abstract:
    PURPOSE: Patients with chronic obstructive pulmonary disease (COPD) may experience moderate (requiring outpatient care) or severe (requiring hospitalization) disease exacerbations. Guidelines recommend escalation from dual to triple therapy (inhaled corticosteroid + long-acting beta agonist + long-acting muscarinic antagonist) after two moderate or one severe exacerbation in a year. This study examined whether prompt initiation of triple therapy lowers risk of future exacerbations and reduces healthcare costs, compared to delayed/very delayed triple therapy after an exacerbation. PATIENTS AND METHODS: This retrospective observational study of US healthcare claims included patients ≥40 years old with COPD who initiated triple therapy (1/1/2011-3/31/2020) after ≥2 moderate or ≥1 severe exacerbation in the prior year. The earliest of the second moderate or first severe exacerbation was the index date. Patients were stratified by triple therapy timing: prompt (≤30 days post-index), delayed (31-180 days), very delayed (181-365 days). COPD exacerbations, all-cause and COPD-related healthcare utilization and costs were assessed during 12 months post-index (follow-up). Multivariable regression estimated the effect of each 30-day delay in triple therapy on the odds of exacerbations, number of exacerbations, and costs during follow-up, controlling for patient characteristics. RESULTS: A total of 24,770 patients were included: 7577 prompt, 9676 delayed, 7517 very delayed. Each 30-day delay of triple therapy was associated with 11% and 7% increases in the odds of any exacerbation and a severe exacerbation, respectively (odds ratio [95% CI]: 1.11 [1.10-1.13] and 1.07 [1.05-1.08]), a 4.3% (95% CI: 3.9-4.6%) increase in the number of exacerbations, a 1.8% (95% CI: 1.3-2.3%) increase in all-cause costs, and a 2.1% (95% CI: 1.6-2.6%) increase in COPD-related costs during follow-up. CONCLUSION: Promptly initiating triple therapy after two moderate or one severe exacerbation is associated with decreased morbidity and economic burden in COPD. Proactive disease management may be warranted to prevent future exacerbations and lower costs among patients with COPD.
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