Active clinical trials for "Purpura"

The purpose of this study is to assess the psychometric properties of a recently developed congenital thrombotic thrombocytopenic purpura (cTTP)-specific patient-reported outcomes (PRO) instrument.

Idiopathic thrombocytopenic purpura (ITP) is the most frequent auto-immune cytopenia. There is no specific biological marker and the diagnosis often results from the exclusion of other differential diagnoses, notably inherited thrombocytopenia. Recent studies have reported an original platelet destruction mechanism in ITP, by antibody-mediated desialylation of membrane proteins. The detection of platelet sialylation can be readily achieved using flow cytometry. This could provide a new biomarker of ITP, useful to ascertain a diagnosis of ITP and guide towards proper patient management.

Purpura fulminans (PF) is a rare life-threatening infectious disease characterized by the association of a sudden and extensive purpura together with acute circulatory failure. The mortality of PF has been reported to be as high as 50% in previous adult series. Additionally, patients surviving to the early phase of PF are exposed to a high risk of limb amputation. The hOPeFUL study aims at assessing the short and long term outcomes of adult patients admitted in the intensive care unit for a purpura fulminans.

Symptoms of Primary Immune Thrombocytopenic Purpura (pITP), such as spontaneous bruising, menorrhagia, mucosal bleeding and other symptoms might significantly affect the HRQOL of pITP patients. However, very little evidence exists on HRQOL outcomes in patients diagnosed with pITP. The investigators project will aim at providing scientific community solid evidence based data on the extent to which HRQOL is compromised and in which specific area. The purpose of this study is thus to compare generic Health-related Quality of Life (HRQOL) profiles of adult patients with primary Immune Thrombocytopenic Purpura (pITP) with that of a matched Italian population control Group.

This is a multi-center prospective observational descriptive study complemented by a retrospective chart review. Patients diagnosed with ITP and currently treated for ITP by a hematologist or hematologist-oncologist will be recruited from community-based clinics and academic/referral centers. They will be followed prospectively for a period of 12 months. At inception, participants' charts will also be reviewed from the date of enrollment retrospectively to the date of diagnosis or the previous 36 months, whichever is less.

To determine the role of drugs in the etiology of aplastic anemia, agranulocytosis, and thrombocytopenic purpura. Drugs used in chemotherapy and immunotherapy were excluded.

The aim of this study is to determine histological immunological parameters, sought on splenectomy pieces that may explain the failure or success of splenectomy in patients with ITP who had a splenectomy to treat their ITP(Immune thrombocytopenic purpura).

Idiopathic purpura fulminans by anti-protein S antibody is a very rare but potentially extremely serious entity. The data in the literature are poor with only isolated report boxes and a single series of less than 10 boxes. The creation of a larger series of cases would make it possible to better understand this pathology and to offer assistance in diagnosis and management.

The chronic immune thrombopenia is an autoimmune disease caused by B cells. These cells produce anti platelets and megakaryocytes antibodies. Some B cells, named regulatory B cells, are known to control other cells. Their action in chronic immune thrombopenia is actually unknown.

This study seeks to understand the journey that patients eventually are diagnosed with vasculitis experience in the period prior to their formal diagnosis by a healthcare provider. Data elements of interest include average time from the onset of the first symptoms to the time a diagnosis of vasculitis is confirmed. Other aims include identifying factors associated with the time to diagnosis. These factors will be divided into: a) intrinsic factors, or so-called "patient-related factors", such as the type of vasculitis symptoms, patient demographics, socioeconomic status, patients' beliefs regarding the etiology of their symptoms, and other factors, and b) extrinsic factors, or "professional/health system factors", such as healthcare access, referral patterns, testing patterns, and other factors. Understanding such factors can guide future efforts to shorten delays in diagnosis and thereby improve outcomes. All analyses will be done for the population of patients with vasculitis as a whole and by individual types of vasculitis.