TPO and autoimmune thrombocytopenic purpura: Another study confirmed these findings by showing that ITP patients (n = 10) with either newly diagnosed (n = 1), persistent (n = 2) or chronic ITP (n = 7), not responding to GCs, IVIg, splenectomy or at least one administration of TPO-RA (multi-refractory patients), responded to oseltamivir with increasing platelet counts (enhanced response with additional treatment with TPO-RA) [64].