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Vincristine efficacy and safety in treating immune thrombocytopenia: a retrospective study of 35 patients

Kaddouri, Najett
Khellaf, Medhi
Morin, Anne-Sophie
Michel, Marc
Mekinian, Arsène
Bierling, Philippe
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Published in European Journal of Haematology. 2016, vol. 96, no. 3, p. 269-275
Abstract Although vincristine (VCR) is sometimes prescribed for newly diagnosed immune thrombocytopenia (ITP), its efficacy in refractory ITP and sustained efficacy has yet to be demonstrated. We describe our clinical experience and recommend vincristine's correct place in ITP management. This retrospective study analysed data from 35 patients with newly diagnosed (ND), persistent (P) or chronic (C) ITP treated with VCR. The initial response rate, defined as >30 × 10(9) platelets/L, reached 86% after a median of 7 [interquartile range (IQR) 6-13] days. In ND and P ITP, even when previous therapies were inefficient, initial response was 87.5%, suggesting that this treatment could be used particularly in rescue. Median survival time, without failure or relapse, was 15 months (Kaplan-Meier curve). Predictive factors (univariate analysis) of an initial and long-term response were a small number of prior treatments received. However, at 2 yr, only seven patients had sustained response. Eight (23%) patients experienced adverse events: neuropathy for seven and bowel obstruction for one. Vincristine efficacy in ITP was confirmed, and it could be a good strategy for treating resistant ITP, especially in emergencies. In this era of new therapeutics, VCR deserves to remain on the list of ITP treatments because of its initial efficacy, safety and low cost.
PMID: 25976731
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Research group Groupe Perrier Arnaud (Médecine interne générale, de réhabilitation et de gériatrie) (585)
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STIRNEMANN, Jérôme et al. Vincristine efficacy and safety in treating immune thrombocytopenia: a retrospective study of 35 patients. In: European Journal of Haematology, 2016, vol. 96, n° 3, p. 269-275. https://archive-ouverte.unige.ch/unige:78673

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Deposited on : 2015-12-16

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