Istituto di Fisiologia Clinica     
Grossi A., Balestri F., Tognoni D., Minichilli F., Fiorentino B., Guarnieri C., Scarpellini M., Guazzini S. Intravenous immunoglobulin therapy in the treatment of the acute phase of chronic idiopathic thrombocytopenic purpura in adults. In: HAEMA, vol. 9 (4) pp. 567 - 571. Hellenic Society of Hematology, 2006.
A prospective, open-label phase III study was carried out to evaluate the efficacy and tolerability of a preparation of virus-inactivated normal human intravenous immunoglobulin. Fifteen adult patients suffering from chronic idiopathic thrombocytopenic purpura (ITP), (basal platelet count <20x109/l), received 0.4 g/kg daily for 5 days. The increase in platelet count, reduction in hemorrhagic events, duration of platelet response, and incidence of adverse events were recorded. Fourteen out of 15 patients achieved a platelet count 50x109/l (response rate was 93.3%), and only 2 out of 10 patients with positive baseline Rumple-Leed test remained positive after treatment (p =0.0022). Interestingly, a close inverse correlation between platelet counts and haemoglobin levels was observed. No side effects were recorded. This study provides evidence of therapeutic efficacy and the good tolerability of the immunoglobulin preparation we used in this trial, and suggests the role of haemolysis as a mechanism for the increase in platelet count.
Subject Intravenous Immunoglobulin, idiopatic thrombocytopenic purpura

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