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Single dose of anti-D immune globulin at 75 microg/kg is as effective as intravenous immune globulin at rapidly raising the platelet count in newly diagnosed immune thrombocytopenic purpura in children.

Author(s): Tarantino MD, Young G, Bertolone SJ, Kalinyak KA, Shafer FE, Kulkarni R, Weber LC, Davis ML, Lynn H, Nugent DJ, Acute ITP Study Group

Affiliation(s): Comprehensive Bleeding Disorders Center, University of Illinois College of Medicine, Peoria, Illinois 61614, and Children's Hospital of Orange County, Orange, California, USA. mdtara@hemophilia-ctr-peoria.com

Publication date & source: 2006-04, J Pediatr., 148(4):489-94.

Publication type: Multicenter Study; Randomized Controlled Trial

OBJECTIVE: To conduct a randomized prospective trial of immune globulin treatment for 105 Rh+ children with newly-diagnosed immune thrombocytopenic purpura and a platelet count<20,000/microL, to determine whether anti-D immune globulin (anti-D) is as effective as intravenous immune globulin (IVIg). STUDY DESIGN: Eligible patients received either a single intravenous dose of 50 microg/kg anti-D (anti-D50), 75 microg/kg anti-D, (anti-D75), or 0.8 g/kg IVIg, (IVIg). Patients were monitored for response to treatment and adverse events. RESULTS: By 24 hours after treatment 50%, 72%, and 77% of patients in the anti-D50, anti-D75, and IVIg groups, respectively, had achieved a platelet count>20,000/microL (P=.03). By day 7, hemoglobin concentrations decreased by 1.6 g/dL, 2 g/dL, and 0.3 g/dL in the anti-D50, anti-D75, and IVIg groups, respectively. Headache, fever, or chills occurred least often in the anti-D50 group. CONCLUSIONS: A single 75 microg/kg dose of Anti-D raised the platelet count in children with newly diagnosed immune thrombocytopenic purpura more rapidly than standard-dose anti-D and as effectively as IVIg, with an acceptable safety profile.

Page last updated: 2006-11-04

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