View clinical trials related to Thrombocytopenia.
Filter by:The purpose of this study is to collect and store samples and health information for current and future research to learn more about the causes and treatment of blood diseases. This is not a therapeutic or diagnostic protocol for clinical purposes. Blood, bone marrow, hair follicles, nail clippings, urine, saliva and buccal swabs, left over tissue, as well as health information will be used to study and learn about blood diseases by using genetic and/or genomic research. In general, genetic research studies specific genes of an individual; genomic research studies the complete genetic makeup of an individual. It is not known why many people have blood diseases, because not all genes causing these diseases have been found. It is also not known why some people with the same disease are sicker than others, but this may be related to their genes. By studying the genomes in individuals with blood diseases and their family members, the investigators hope to learn more about how diseases develop and respond to treatment which may provide new and better ways to diagnose and treat blood diseases. Primary Objective: - Establish a repository of DNA and cryopreserved blood cells with linked clinical information from individuals with non-malignant blood diseases and biologically-related family members, in conjunction with the existing St. Jude biorepository, to conduct genomic and functional studies to facilitate secondary objectives. Secondary Objectives: - Utilize next generation genomic sequencing technologies to Identify novel genetic alternations that associate with disease status in individuals with unexplained non-malignant blood diseases. - Use genomic approaches to identify modifier genes in individuals with defined monogenic non-malignant blood diseases. - Use genomic approaches to identify genetic variants associated with treatment outcomes and toxicities for individuals with non-malignant blood disease. - Use single cell genomics, transcriptomics, proteomics and metabolomics to investigate biomarkers for disease progression, sickle cell disease (SCD) pain events and the long-term cellular and molecular effects of hydroxyurea therapy. - Using longitudinal assessment of clinical and genetic, study the long-term outcomes and evolving genetic changes in non-malignant blood diseases. Exploratory Objectives - Determine whether analysis of select patient-derived bone marrow hematopoietic progenitor/stem (HSPC) cells or induced pluripotent stem (iPS) cells can recapitulate genotype-phenotype relationships and provide insight into disease mechanisms. - Determine whether analysis of circulating mature blood cells and their progenitors from selected patients with suspected or proven genetic hematological disorders can recapitulate genotype-phenotype relationships and provide insight into disease mechanisms.
The primary objective of the study is to check if an subcutaneous (sc) infusion of UCB7665 is safe and tolerated in subjects with primary immune thrombocytopenia.
The purpose of this research is to identify genomic markers that can predict heparin-induced thrombocytopenia (HIT), which is a very serious side effect to heparin. Heparin is commonly used to prevent blood clots and the investigators may be able to identify genomic markers which can be used to prevent heparin use in people who will get HIT.
The purpose of this study is to determine whether recombinant human thrombopoietin(rhTPO) can rapidly increase the platelets counts, shorten the time of the platelet returned to normal, reduce platelet transfusion and bleeding events, prompt recovery of organ function, decrease the length of ICU stay, and eventually reduce the 28-day mortality in sepsis patients with severe thrombocytopenia.
Folic acid (FA; folate) in the dose of 350-1,000 μg daily should be supplemented, daily, starting 7 days before the first dose of pemetrexed based chemotherapy and should be continued while the patient is on therapy and for 21 days after cessation of therapy. Vitamin B12 injections (1,000 μg i.m.) should also be started 1 week before the first dose of chemotherapy. However, the evidence for delaying chemotherapy by seven days for the purpose of giving vitamin B12 and FA supplementation is not robust. Observational and prospective single arm studies have not shown any increased toxicity if pemetrexed was started earlier than the recommended duration of supplementation. In a resource constrained setting, this will lead to one additional visit and 1-week chemotherapy delay which may be inconvenient for patients. Hence an open label, randomized control trial is being undertaken to evaluate if there are any differences in pemetrexed related hematological toxicity amongst patients who receive delayed initiation of chemotherapy (following 5 - 7 days of vitamin B12 and FA supplementation; Delayed Arm) as compared to those in whom vitamin B12 and FA supplementation is starting simultaneously (within 24 hours) of initiation of chemotherapy (Immediate Arm).
The investigators will attempt to further increase the cure rate of ITP with medical therapy by providing maintenance therapy with Mycophenolate mofetil (MMF) to persistent/chronic ITP patients after treating them with induction therapy combining rituximab and dexamethasone. The investigators will randomly assign patients to MMF versus placebo in order to demonstrate safety (e.g., for infectious risk) and efficacy (platelet counts stably >50x109/L more than 1 year off therapy).
The project was organized by Qilu Hospital of Shandong University in China. In order to report the efficacy and safety of different cycles of high-dose dexamethasone for the treatment of adults with newly-diagnosed primary immune thrombocytopenia (ITP).
Due to its expected efficacy based on the retrospective data available in ITP, its relatively good safety profile and its very low cost , dapsone could be a good steroid-sparing second-line option for adults with ITP. This study is a phase III prospective multicenter randomized open trial comparing two treatment strategies: - Arm A (experimental arm): prednisone at 1 mg/kg for 3 weeks + dapsone at 100 mg per day up to week 52 if an initial response is achieved. - Arm B (control arm): prednisone alone at 1 mg/kg for 3 weeks followed by monitoring and "standard of care" The aim of the study is to demonstrate the efficacy of dapsone based on the overall response rate (including response and complete response) as a second-line treatment for adults with newly-diagnosed persistent or chronic (modified by amendment 08/11/2016) ITP not achieving a durable response with corticosteroids. The primary endpoint will be the overall response-rate (response or complete response according to standard definitions) in both arms at week 52 (1 year). The secondary endpoints are the following : - To assess the safety of dapsone over the study period and especially the incidence of cutaneous reactions. - To analyze the overall response rate (platelet count > 30 x 109/L with at least a doubling of the pre-treatment count in the absence of any other ITP treatment) in both treatment arms at week 24. - To compare the rate of complete response and failure in both arms at 24 and 52 weeks. - To compare time to treatment failure (TTF) in both arms - To investigate the mechanisms of action of dapsone in ITP in a subgroup of patients (ancillary study)
The purpose of this study is to evaluate the usefulness of antifibrinolytic therapy with tranexamic acid (TXA) in preventing bleeding in patients who are thrombocytopenic due to primary bone marrow disorders or chemotherapy, immunotherapy and/or radiation therapy.
Pre-clinical and clinical evaluations show that PRTX- 100 has biological activity that may lead to improved platelet levels where these are decreased due to immunological pathologies and that PRTX-100 has an acceptable safety profile. In vivo treatment with PRTX-100 has been shown to raise platelet counts in a mouse model of immune thrombocytopenia (ITP). The primary objective of the study is to assess the efficacy of PRTX-100 in terms of platelet response in patients with chronic/persistent ITP.