Usability of mepolizumab single-use prefilled syringe for patient self-administration
2019
AbstractObjective: A liquid mepolizumab formulation in a single-use prefilled syringe (PFS) is under development. We evaluated the usability of mepolizumab self-injected via PFS by patients with severe eosinophilic asthma (SEA), or their caregivers, in clinic and at home.Methods: This open-label, single-arm, Phase IIIa study included patients with SEA, aged ≥12 years, and receiving mepolizumab (100 mg subcutaneously) every 4 weeks for ≥12 weeks prior to screening. Patients with SEA not receiving mepolizumab at screening who met additional criteria were also included. Patients/caregivers self-administered mepolizumab (100 mg subcutaneously) via PFS every 4 weeks for 12 weeks. The first (Week 0) and third (Week 8) dose were observed in clinic; the second dose (Week 4) was unobserved at home. Primary and secondary endpoints were the proportion of patients who successfully self-administered their third and second doses, respectively. Injection success was determined by investigator/site staff. Patient experie...
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