COMPARATIVE STUDY
JOURNAL ARTICLE

Weight-adjusted Intravenous Reslizumab in Severe Asthma with Inadequate Response to Fixed-Dose Subcutaneous Mepolizumab

Manali Mukherjee, Fernando Aleman Paramo, Melanie Kjarsgaard, Brittany Salter, Gayatri Nair, Nicola LaVigne, Katherine Radford, Roma Sehmi, Parameswaran Nair
American Journal of Respiratory and Critical Care Medicine 2018 January 1, 197 (1): 38-46
28915080

RATIONALE: Clinical benefits of fixed-dose 100-mg subcutaneous (SC) mepolizumab in prednisone-dependent patients are modest when sputum eosinophilia is not adequately controlled.

OBJECTIVES: This study compared treatment response of weight-adjusted intravenous (IV) reslizumab in patients previously treated with 100-mg SC mepolizumab.

METHODS: Ten prednisone-dependent patients with asthma (sputum eosinophils >3% and blood eosinophils >300 cells/μl), who had previously received mepolizumab (100 mg SC dosed every 4 wk [Q4W]) for at least 1 year, received two infusions of placebo (Q4W) followed by four infusions of 3.0 mg/kg reslizumab Q4W in a single-blind, placebo-controlled sequential trial. Primary outcomes were reduction of eosinophils in sputum and blood. Additional outcomes included FEV1 , asthma control questionnaire, eosinophil peroxidase, IL-5, sputum and blood innate lymphoid cells group 2, eosinophil progenitor cells, and autoimmune responses.

MEASUREMENTS AND MAIN RESULTS: IV reslizumab attenuated sputum eosinophils by 91.2% (P = 0.002), blood eosinophil counts by 87.4% (P = 0.004), and sputum eosinophil peroxidase levels by 65.5% (P = 0.03) compared with placebo. Attenuation of both local and systemic eosinophilia was associated with statistically significant improvements in FEV1 (P = 0.004) and asthma control questionnaire five-question instrument scores (P = 0.006). Decrease in percent sputum eosinophil was greater with reslizumab (by 42.7%) compared with mepolizumab (by 5.0%) and this was associated with greater improvement in asthma control questionnaire (P = 0.01; analysis of covariance of Δ between before and after treatment, mepolizumab vs. reslizumab, adjusted for baseline prednisone). Changes in sputum IL-5 and anti-eosinophil peroxidase IgG after anti-IL-5 therapy were predictors of response.

CONCLUSIONS: Weight-adjusted IV reslizumab was superior to fixed-dose SC mepolizumab in attenuating airway eosinophilia in prednisone-dependent patients with asthma, with associated improvement in asthma control. Clinical trial registered with www.clinicaltrials.gov (NCT 02559791).

Full Text Links

Find Full Text Links for this Article

Discussion

You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read
28915080
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"