Intravenous Rh immune globulin for treating immune thrombocytopenic purpura

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Abstract
Intravenous Rhesus factor immune globulin was licensed by the U. S. Food and Drug administration in 1995 for the treatment of acute and chronic immune thrombocytopenic purpura in children and chronic immune thrombocytopenic purpura in adults. In 1996, the American Society of Hematology published a practice guideline for immune thrombocytopenic purpura, but treatment recommendations of necessity were formulated using only results of early clinical trials with intravenous Rh immune globulin. To date, there are no published results of large-scale clinical trials comparing conventional doses of intravenous immune globulin with the most promising dose range for intravenous Rh immune globulin (50–75 μg/kg). However, clinical experience is accumulating to indicate that intravenous Rh immune globulin is as effective, probably safer, and easier to administer than intravenous immune globulin. Acute intravascular hemolysis after infusions of intravenous Rh immune globulin for immune thrombocytopenic purpura has been reported with an estimated incidence of 1 in 1,115 patients. The risk factors for this adverse event have not been defined.

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