期刊
CLINICAL IMMUNOLOGY
卷 142, 期 3, 页码 280-290出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.clim.2011.11.005
关键词
Plasma-derived C1-inhibitor; Angioedema; Nanofiltration
类别
From 1997, plasma-derived C1-inhibitor concentrate (Cetor (R)) has been available to HAE and AAE patients. Recently, a virus reducing 15 nm nanofiltration step has been introduced in the production process. A randomized, double-blind controlled cross-over study was performed to compare the pharmacokinetics (PK) of nanofiltered (C1-INH-NF) with conventional C1-inhibitor (C1-INH). Efficacy and safety were investigated in an open-label, on-demand and a prophylactic study. No differences in pharmacokinetic parameters between C1-INH and C1-INH-NF were found (13 non-symptomatic HAE patients). Both C1-inhibitor products equally increased plasma C4 levels. In the on-demand study, 14 acute angioedema attacks in 8 patients were analyzed. In the prophylactic study, 1 ME and 5 RAE patients experienced in total 31 attacks during 748 observation days. In total 180,000 units of C1-INH-NF were administered. No product-related adverse events occurred, and no anti-C1-antibodies were induced. Nanofiltration in the production process of C1-inhibitor did not affect the pharmacokinetics, efficacy, and safety. (C) 2011 Elsevier Inc. All rights reserved.
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