Six months prospective randomized single blind study registered as ( NCT 01763658 ) including 39 patients with newly diagnosed ( ND ) ITP ; group 1 ( G1 ) and 39 patients with chronic ITP ( G2 ) , each group was randomly allocated ( 2:1 ) to one of two subgroups respectively ; ( G1A and G2A ) interventional arm received daily antioxidant therapy , while G1B and G2B ; received a placebo .