View clinical trials related to Thrombocytopenia.
Filter by:Thrombocytopenia is a frequent issue in patients with cirrhosis undergoing various types of procedures (e.g. liver biopsy, endoscopy and minor surgical interventions). Thrombocytopenia < 50*10^9/L increases the risk of perioperative and postoperative bleedning and might prevent patients with cirrhosis to undergo important procedures. Doptelet is a small molecular trombopoetin agonist, which results in proliferation and differentiation of megakaryocytes in the bone marrow resulting in increased levels of thrombocytes. It is given orally as a pill and is used to increase platelet count in patients with severe thrombocytopenia (< 50*10^9/L) and cirrhosis and thus not to normalize platelet count. This study investigates the safety and efficacy of Doptelet in patients with cirrhosis and thrombocytopenia (< 50*10^9/L) undergoing minor procedures like Transjugular Adjusted Liver Biopsy (TJALB) and gastroscopy.
Platelets are essential blood elements to maintain hemostasis. Quantitative or qualitative defects can be responsible of hemorrhagic (platelet disorders) or thrombotic (heparin induced thrombocytopenia [HIT]) troubles. Diagnosis of these pathologies is sometimes urgent and consists in delicate platelet functional assays that are mostly made in expert centers. These platelets functional assays measure platelets activation and/or aggregation in response to diverse inductors and may lack sensitivity. The investigators would like to propose a new diagnostic tool with the use of imaging flow cytometry which provides much more information than classic cytometer on cell morphology thanks to images collected by the optical channel of the ImageStream cytometer. The use of this cytometer offers an innovative approach. This study is a monocentric prospective and non-interventional study. The investigators will analyze patient samples with the ImageStream cytometer and reference laboratory tests (light transmission aggregometry and serotonin release assay) in parallel and compare results from the different techniques. This new diagnostic technique will demonstrate a non-inferiority diagnosis compared to reference tests and maybe a better sensibility.
The purpose of this Cohort Treatment Plan is to allow access to eltrombopag for eligible patients diagnosed with medically significant thrombocytopenia. The patient's Treating Physician should follow the suggested treatment guidelines and comply with all local health authority regulations.
Thrombocytopenia is an important pathological feature of HFRS（Hemorrhagic Fever With Renal Syndrome, HFRS）. However, the cause of thrombocytopenia in HFRS is not yet fully understood. Neutrophils, as the largest number of white blood cells in the human body, can widely participate in the immune process of viral infections. Previous studies have found that the neutrophils of patients with acute myocardial infarction can interact with activated platelets and further mediate platelet phagocytosis.Therefore, this study aims to systematically elucidate the immunological process of neutrophil mediated thrombocytopenia in patients with HFRS by exploring the correlation between platelet activation, neutrophil activation and neutrophil proportion of adherent / phagocytic platelets peripheral blood of HFRS patients, and to analyze its relationship with the course of HFRS disease, which lays a theoretical foundation for further understanding the pathogenesis of HFRS and provides a basis for clinical use.
A Phase 3 study to evaluate the safety and efficacy of efgartigimod PH20 subcutaneous in adult patients with primary immune thrombocytopenia
The study aims to investigate immunomodulatory effects of eltrombopag combined with dexamethasone in young and midlife adult patients with newly diagnosed primary Immune thrombocytopenia (ITP).
Immune thrombocytopenia (ITP) is an autoimmune disease but, paradoxically, and unlike other autoimmune diseases, antiplatelet antibodies are not used either for the diagnosis of the disease or for its prognosis. ITP is a diagnosis of exclusion retained after elimination of other pathologies leading to a thrombocytopenia. No major study has prospectively evaluated the diagnostic value of the presence of anti-platelet antibodies in the etiological investigation of a thrombocytopenia, nor the impact of platelet antibodies on the course of ITP. The gold standard analysis for the determination of platelet antibodies, is the "monoclonal antibody immobilization of platelet antigens" assay (MAIPA), either direct to detect autoantibodies attached to platelets, or indirect to detect circulating antiplatelet antibodies. Therefore, this work aims to study the contribution of the presence of anti-platelet antibodies detected in MAIPA to determine the autoimmune nature of a thrombocytopenia at diagnosis.
This phase 2 trial studies the efficacy and safety of Avatrombopag for the primary prevention of thrombocytopenia induced by cytarabine-based chemotherapy in patients with lymphoma
The main objective of this work is to assess the intraoperator reproducibility in the calculation of the HEP score in a population of intensive care patients.
Argatroban is a parenteral direct Thrombininhibitor used for anticoagulation in patients suffering from heparin induced thrombocytopenia (HIT). There is increasing evidence suggesting that the activated partial thromboplastine time (aPTT), which is recommended for dosage monitoring, correlates poorly with serum argatroban concentration in critically ill patients. Therefore it may be badly suited to determine the correct dosing. Ecarin based tests have been proven to be effective in determining effects of direct thrombin inhibitors. The investigators now plan to evaluate a novel, rotational thrombelastometric, ecarin based bedside test for its ability to measure the effect of argatroban in critically ill patients. So far an excellent correlation of a similar test could be shown in spiked plasma of healthy adults. According to the manufacturer the ECA-Test is able to detect direct thrombininhibitors. However to our knowledge neither the ECA-Test nor other ecarin-based thrombelastometric tests have been studied in critically ill patients treated with argatroban. The investigators therefore seek to investigate the correlation of the ECA-Test (ClotPro®) with the serum argatroban concentration.