Stasi et al listed criteria for response to therapy in patients with immune thrombocytopenic purpura (ITP).
(1) initial platelet count per µL
(2) platelet count per µL after therapy
(3) need for continued therapy
increase in platelet count per µL =
= (platelet count after therapy) - (initial platelet count)
increased, and final count > 100,000 per µL
complete response (CR)
increased, and final count >= 50,000 and < 100,000 per µL
increased, and final count < 50,000 per µL
minor response (MR)
unchanged or decrease
no response (NR)
increased and final count < 50,000 per µL
• I will define an increase in platelet count as a final count > 1.1 * (initial count).
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Specialty: Hematology Oncology, Clinical Laboratory, Immunology/Rheumatology