Study on Glucocorticoid Combined With Gamma Globulin and Ropristine N01 in Treatment of Initial Severe ITP

"Romiplostim N01, starting dose of 1 µg/kg, subcutaneous injection, given on the third day of IVIG, once a week, for up to one month.~IVIG, 400mg/kg/d, intravenous administration, continuous administration for 3-5 days.~Prednisone, 0.8mg/kg/d, taken orally or intravenously, for up to one month."