Lethal capillary leak syndrome after a single administration of interferon beta-1b.

Schmidt, S; Hertfelder, H J; von Spiegel, T; Hering, R; Harzheim, M; Lassmann, H; Deckert-Schlüter, M; Schlegel, U · Neurology · 1999

case_report · Level V

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Abstract

Interferon beta-1b (IFNbeta-1b) is a potent immunomodulatory drug in the treatment of MS. We report a lethal capillary leak syndrome after the administration of IFNbeta-1b in a patient with disseminated white matter disease, monoclonal gammopathy, and acquired C1 inhibitor (C1-INH) deficiency. IFNbeta-1b may cause a transient release of proinflammatory cytokines finally resulting in an uninhibited activation of the complement cascade in patients with C1-INH deficiency.

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