Cognitive Status Fatigue and Inflammation in Patients With Immune Thrombocytopenia (ITP))

This is a multi-center, hospital based, cross-sectional study based on data from patient medical records, including laboratory results. The study will include adult patients with chronic (> 1 year duration) primary Immune Thrombocytopenia (ITP) only. Patients will be identified based on a laboratory confirmed diagnosis of ITP in the medical records, where there is also a physician-confirmed diagnosis of primary ITP. If patients consent to take part in the study, a routine clinical visit will also serve as the study visit. All study participants will have a routine blood test as part of their standard clinical care at the study visit, and this same procedure will be used to collect supplementary blood samples to assess a variety of biomarkers. Data will be collected using a combination of chart review, clinical outcome assessment administration, and laboratory results through blood tests.