A Real World Study of Treatment Patterns and Effectiveness of Standard of Care in Primary Immune Thrombocytopenia Patients

Who can take part

• Evidence of a diagnosis of primary ITP during the study identification period
• Evidence of treatment with any allowed second-line treatment during the study identification period after the first primary ITP diagnosis
• Evidence of treatment with any allowed first-line treatment prior to index
• Aged ≥18 years at index

Who cannot take part

• Fewer than 12 months continuous enrollment or activity prior to index
• Evidence of any allowed second-line therapies or splenectomy prior to index
• Evidence of diagnosis of Evans syndrome, systemic lupus erythematosus, autoimmune lymphoproliferative syndrome, human immunodeficiency virus (HIV), hepatitis C virus (HCV), Helicobacter pylori, Sjogren's antiphospholipid syndrome prior to index, or active b-cell malignancies (not in remission) in the baseline period
• Continuous enrollment end date or death date prior to index
• Fewer than one inpatient or fewer than two outpatient records during baseline