A randomized trial of benralizumab, an antiinterleukin 5 receptor α monoclonal antibody, after acute asthma.
Am J Emerg Med
; 33(1): 14-20, 2015 Jan.
Article
em En
| MEDLINE
| ID: mdl-25445859
ABSTRACT
BACKGROUND:
Patients with frequent asthma exacerbations resulting in emergency department (ED) visits are at increased risk for future exacerbations. We examined the ability of 1 dose of benralizumab, an investigational antiinterleukin 5 receptor α monoclonal antibody, to reduce recurrence after acute asthma exacerbations.METHODS:
In this randomized, double-blind, placebo-controlled study, eligible subjects presented to the ED with an asthma exacerbation, had partial response to treatment, and greater than or equal to 1 additional exacerbation within the previous year. Subjects received 1 intravenous infusion of placebo (n = 38) or benralizumab (0.3 mg/kg, n = 36 or 1.0 mg/kg, n = 36) added to outpatient management. The primary outcome was the proportion of subjects with greater than or equal to 1 exacerbation at 12 weeks in placebo vs the combined benralizumab groups. Other outcomes included the time-weighted rate of exacerbations at week 12, adverse events, blood eosinophil counts, asthma symptom changes, and health care resource utilization.RESULTS:
The proportion of subjects with greater than or equal to 1 asthma exacerbation at 12 weeks was not different between placebo and the combined benralizumab groups (38.9% vs 33.3%; P = .67). However, compared with placebo, benralizumab reduced asthma exacerbation rates by 49% (3.59 vs 1.82; P = .01) and exacerbations resulting in hospitalization by 60% (1.62 vs 0.65; P = .02) in the combined groups. Benralizumab reduced blood eosinophil counts but did not affect other outcomes, while demonstrating an acceptable safety profile.CONCLUSIONS:
When added to usual care, 1 dose of benralizumab reduced the rate and severity of exacerbations experienced over 12 weeks by subjects who presented to the ED with acute asthma.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Asma
/
Serviço Hospitalar de Emergência
/
Anticorpos Monoclonais Humanizados
Tipo de estudo:
Clinical_trials
Limite:
Adult
/
Female
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Humans
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Male
/
Middle aged
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Am J Emerg Med
Ano de publicação:
2015
Tipo de documento:
Article