View clinical trials related to Purpura.
Filter by:Hereditary thrombotic thrombocytopenic purpura (Upshaw-Schulman syndrome) is a rare disorder characterized by thrombocytopenia as a result of platelet consumption, microangiopathic hemolytic anemia, occlusion of the microvasculature with von Willebrand factor-platelet-thrombic and ischemic end organ damage. The underlying patho-mechanism is a severe congenital ADAMTS13 (a disintegrin and metalloproteinase with thrombospondin type 1 motif, 13) deficiency which is the result of compound heterozygous or homozygous ADAMTS13 gene mutations. Although considered a monogenic disorder the clinical presentation in Upshaw-Schulman syndrome patients varies considerably without an apparent genotype-phenotype correlation. In 2006 we have initiated a registry for patients with Upshaw-Schulman syndrome and their family members to identify possible triggers of acute bouts of TTP, to document individual clinical courses and treatment requirements as well as possible side effects of long standing plasma substitution, e.g. alloantibody formation or viral infections.
We designed a study for evaluate the efficacy of Helicobacter pylori eradication for the 1st line treatment of immune thrombocytopenic purpura (ITP) patients with moderate thrombocytopenia. If this eradication treatment is revealed effective on ITP patients with more than 30X109/L of platelet, it would be valuable treatment especially for young ITP patients with mild to moderate thrombocytopenia.
Due to high incidence of renal damage by Hench-schonlein Purpura(HSP) is the key to affect prognosis, this project moves the research emphasis forward in line with the idea of "prevention of progress of disease", Which concerns on Traditional Chinese Medicine(TCM) clinical research scheme evaluation of HSP, evaluates the renal damage and disease recurrence as the end event, and comes to the evaluation through the comparative study that the vantage point of the scheme of syndrome differentiation and treatment in detoxification, cooling blood and removing blood stasis to the conventional treatments can reduce kidney damage and recurrence rate.
The general objective of this study is to assess the efficacy and safety of Rituximab in the management of patients with refractory or relapsed thrombotic thrombocytopenic purpura-hemolytic uremic syndrome (TTP-HUS). There have been several case reports and case series describing the use of Rituximab in patients with TTP-HUS; however its use has not been studied in a large trial. It is hypothesized that Rituximab may ameliorate the severity of certain cases of TTP-HUS by decreasing the number of activity of B-cells which may result in decreased production of the ADAMTS13 protease inhibitor. Patients with TTP-HUS not responding to standard therapy or patients with relapsed disease may have particular benefit. Treatments that decrease the frequency of relapse or shorten the time to remission of TTP-HUS will be of benefit by decreasing the need for blood product support.
This study is designed to evaluate the efficacy and safety of single agent Doxil in the treatment of patients with refractory ITP (Idiopathic Thrombocytopenic Purpura).