RESUMEN
Purpose: Guidelines recommend the use of triple therapy with an inhaled corticosteroid (ICS), a long-acting ß2 agonist (LABA) and a long-acting muscarinic antagonist (LAMA) to reduce the risk of future exacerbations in symptomatic COPD patients with a history of exacerbations. This study aimed to estimate COPD-related healthcare resource use and costs, and subsequent exacerbation rates, for patients initiating multiple-inhaler triple therapy (MITT) early (≤30 days) versus late (31-180 days) following an exacerbation, in a real-world clinical setting. Patients and methods: This was an observational, longitudinal, retrospective study using electronic medical records from the Spanish database of the Red de Investigación en Servicios Sanitarios Foundation. Patients ≥40 years old with a confirmed COPD diagnosis who were newly prescribed MITT up to 180 days after an exacerbation between January 2013 and December 2015 were included. Patients were followed from the date of MITT initiation for up to 12 months to assess COPD-related health care resource use (routine and emergency visits, hospitalizations, pharmacologic treatment), exacerbation rate, and costs (2017); these endpoints were compared between early versus late groups. Results: The study included 1280 patients who met selection criteria: mean age 73 years, 78% male, and 41% had severe/very severe lung function impairment. The proportion of patients initiating MITT early versus late was 61.6% versus 38.4%, respectively. There were no statistically significant differences in baseline characteristics between groups. During follow-up, health care resource consumption was lower in the early versus late group, especially primary care and ED visits, leading to lower total costs (1861 versus 1935; P<0.05). In the follow-up period, 28.0% of the patients in the early group experienced ≥1 exacerbation versus 36.4% in the late group (P=0.002), with an exacerbation rate of 0.5 versus 0.6 per person per year (P=0.022), respectively. Conclusion: Initiating MITT early (≤30 days after an exacerbation) may reduce health care costs and exacerbation rate compared with late MITT initiation.
Asunto(s)
Corticoesteroides/administración & dosificación , Corticoesteroides/economía , Broncodilatadores/administración & dosificación , Broncodilatadores/economía , Costos de los Medicamentos , Pulmón/efectos de los fármacos , Enfermedad Pulmonar Obstructiva Crónica/tratamiento farmacológico , Enfermedad Pulmonar Obstructiva Crónica/economía , Tiempo de Tratamiento/economía , Administración por Inhalación , Corticoesteroides/efectos adversos , Agonistas de Receptores Adrenérgicos beta 2/administración & dosificación , Agonistas de Receptores Adrenérgicos beta 2/economía , Adulto , Anciano , Broncodilatadores/efectos adversos , Ahorro de Costo , Análisis Costo-Beneficio , Femenino , Humanos , Estudios Longitudinales , Pulmón/fisiopatología , Masculino , Persona de Mediana Edad , Antagonistas Muscarínicos/administración & dosificación , Antagonistas Muscarínicos/economía , Enfermedad Pulmonar Obstructiva Crónica/diagnóstico , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Estudios Retrospectivos , España , Factores de Tiempo , Resultado del TratamientoRESUMEN
PURPOSE: Chronic obstructive pulmonary disease (COPD) is a prevalent condition mainly related to smoking, which is associated with a substantial economic burden. The purpose was to compare healthcare resource utilization and costs according to smoking status in patients with COPD in routine clinical practice. METHODS: A retrospective cohort nested case-control study was designed. The cohort was composed of male and female COPD outpatients, 40 years or older, covered by the Badalona Serveis Assistencials (a health provider) health plan. Cases were current smokers with COPD and controls (two per case) were former smokers with COPD (at least 12 months without smoking), matched for age, sex, duration of COPD, and burden of comorbidity. The index date was the last visit recorded in the database, and the analysis was performed retrospectively on healthcare resource utilization data for the 12 months before the index date. RESULTS: A total of 930 COPD records were analyzed: 310 current and 620 former smokers [mean age 69.4 years (84.6 % male)]. Cases had more exacerbations, physician visits of any type, and drug therapies related to COPD were more common. As a consequence, current smokers had higher average annual healthcare costs: 3,784 (1,888) versus 2,302 (2,451), p < 0.001. This difference persisted after adjusting for severity of COPD. CONCLUSIONS: Current smokers with COPD had significantly higher use of healthcare resources, mainly COPD drugs and physician visits, compared with former smokers who had abstained for at least 12 months. As a consequence, current smokers had higher healthcare costs to the National Health System in Spain than ex-smokers.