title: Disseminated intravascular coagulation observed following treatment with gemtuzumab ozogamicin for relapsed/refractory acute promyelocytic leukemia.
abstract: Gemtuzumab ozogamicin (GO) is a recombinant humanized immunoglobulin G4 anti-cluster of differentiation (CD)33 monoclonal antibody conjugated to N-acetyl-γ calicheamicin dimethylhydrazide, a naturally potent antibiotic. It has been introduced for the treatment of acute promyelocytic leukemia (APL), since large quantities of CD33 are commonly expressed on the surface of APL cells. The present study reported two cases with prominent disseminated intravascular coagulation (DIC), which was transiently observed following treatment with GO with relapsed/refractory APL. Very limited information exists regarding DIC occurring following GO, and its mechanism remains to be elucidated. In the present study, recombinant human soluble thrombomodulin was used for DIC treatment, and the patients recovered promptly. Since DIC is the most serious adverse event associated with GO treatment, elucidation of its mechanism and establishment of a treatment strategy are warranted.
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Azuma
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Aya
authors.initials: A
authors.lastname: Nakaya
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Masaaki
authors.initials: M
authors.lastname: Hotta
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Shinya
authors.initials: S
authors.lastname: Fujita
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Yukie
authors.initials: Y
authors.lastname: Tsubokura
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Hideaki
authors.initials: H
authors.lastname: Yoshimura
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Satake
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Ishii
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Tomoki
authors.initials: T
authors.lastname: Ito
authors.affiliation: The First Department of Internal Medicine, Kansai Medical University, Hirakata, Osaka 573-1010, Japan.
authors.forename: Shosaku
authors.initials: S
authors.lastname: Nomura
keywords: acute promyelocytic leukemia; disseminated intravascular coagulation; gemtuzumab ozogamicin