Active clinical trials for "Thrombocytopenia"

Randomised, double blind trial in non-intensive care trauma patients comparing unfractionated heparin (UFH) or low-molecular-weight heparin (LMWH) in heparin-induced thrombocytopenia (HIT).

This clinical trial studies how well donor stem cell boost works in treating patients with low blood cells after donor stem cell transplant. Donor stem cell boost may increase low blood cell counts caused by hematologic cancer or its treatment.

Chronic immune thrombocytopenia (ITP) is a longterm disease in which the blood does not clot normally. This is due to a low number of blood cell fragments called platelets. Platelets clot to seal small cuts or breaks on blood vessel walls and stop bleeding. Normally the immune system makes proteins called antibodies to fight off harmful substances that enter the body. In ITP, the immune system produces antibodies that attack and destroy the body's platelets by mistake. Patients can suffer from bleeding under the skin, nosebleeds, blood in urine or stools and in very severe cases bleeding in the brain. Patients have an increased frequency of death from bleeding complications compared to normal. Chronic ITP is fairly rare , with an incidence of 32 new cases/million people each year. Existing treatments work by lowering the activity of the immune system or directly increasing platelet count. These treatments do not work effectively in all patients and can have side effects. We hope that understanding how belimumab works in ITP will help in the development of future treatments for ITP and other autoimmune diseases. We will test the safety, blood levels and effects of the study medication in people with chronic ITP. Patients will receive the study medication intravenously (through a needle inserted into a vein) and blood samples will be taken before and on several occasions afterwards. Up to 40 patients with chronic ITP, aged 18 to 75 will participate. Approximately 11 patients will take dummy medicine instead of the study medicine neither they or their study doctor will know which one they are given. Participants will take up to 57 weeks to finish the study. They'll make 12 outpatient visits. The study will take place in hospitals in the UK. Other sites in mainland Europe may also be initiated. A pharmaceutical company, GlaxoSmithKline, is funding the study.

Background/Rationale: A very rare syndrome of thrombosis associated with low platelets has been reported in a few cases of recent exposure to COVID-19 vaccine. This thrombotic thrombocytopenia syndrome seems to be affecting patients of all ages and both genders; at present there is no clear signal of risk factors. Objectives: To evaluate an association between COVID-19 vaccine exposure and thromboembolic events occurring with thrombocytopenia (thrombotic thrombocytopenia syndrome; TTS). Study design: Two primary study designs will be considered, a case control study and a self-controlled case series (SCCS). A cohort analysis will be considered, in addition or as an alternative to either of the primary study designs, pending feasibility assessment of the follow-up time. Data Source(s): Data for the study will be accessed through the NHS Digital Trusted Research Environment (TRE), providing national data coverage. Primary care data will be linked with vaccination, hospitalization, COVID-19 test results, mortality data. Initial exploratory analyses will be conducted using the Oxford-Royal College of General Practitioners sentinel network; ORCHID network database (N>15million). Subjects of interest are patients who have received a COVID-19 vaccine. However, investigators will require access to data from all subjects in the databases. Statistical Analysis: The study period will start on December 02, 2020, when the COVID-19 vaccine was first approved in the UK and will end at the end of data availability. For the case-control design, all cases of TTS will be matched with control using risk-set matching. A case or matched control will be considered exposed if a COVID-19 vaccination will be within risk interval prior to the diagnosis date of the matched case. For the SCCS, estimates of relative incidence (RI), in all risk intervals will be reported. For the retrospective cohort design, the incidence of TTS after receiving COVID-19 vaccine will be estimated and investigators will compare this incidence with that occurring in an unvaccinated comparator group about levels of infection across the whole population. Variables: Demographic, socioeconomic descriptors, clinical diagnosis, vaccines, potential confounders, thrombotic phenomena, COVID-19 infection, and other characteristics as applicable.

This study includes patients undergoing elective cardiac surgery on MiECC. Coagulation status is assessed with ROTEM (TEM International GmbH, Munich, Germany) and Platelet function with impedance aggregometry using the ROTEM-Platelet (TEM International GmbH, Munich, Germany).

To investigate the relationship between bronchopulmonary dysplasia and thrombocytopenia.

Description of the use of fostamatinib in patients with PTI in the Andalusian region.

TPO-r Switch is a retrospective study of the patients affected by Immune Thrombopenia (ITP) who received alternatively romiplostim and eltrombopag.

Immune thrombocytopenia (ITP) is an autoimmune disease characterized by a low platelet count responsible for bleedings. The disease is mostly mediated by antiplatelet antibodies produced by specific B cells. However, T cells are also involved but their role is not completely understood. The aim of this study is to determine the implication of T cells in the pathogenesis of ITP, notably regulatory T cells (Treg, CD4+CD25highFoxp3+), cytotoxic T cells (CD3+CD8+) and T follicular helper cells (TFH, CD3+CD4+CXCR5+PD-1+ICOS+), in blood and in the spleen of primary ITP patients, compared to healthy controls.

The purpose of the meta-analysis was to explore the efficacy of eltrombopag versus placebo (standard of care)