Maximum observed change in the A-IPF within 10 days after treatment in patients with ITP (n = 24). The y-axis represents the maximum change in A-IPF after treatment, with an A-IPF response line threshold drawn at 10 × 109/L; and the x-axis, those patients who had a platelet response to different treatments. All patients responding to Eltrombopag, none of the patients responding to GMA161, and 0 of 7 patients responding to intravenous anti-D had an increase in A-IPF more than the 10 × 109/L threshold. Two of 8 patients treated with IVIG and 1 treated with IVIG and intravenous anti-D had an A-IPF increase of at least 10 × 109/L.