View clinical trials related to Purpura, Thrombocytopenic.
Filter by:The SABRE study is a single-arm prospective study measuring safety, tolerability and pharmacokinetics of two SARS-CoV-2 neutralising antibodies (BMS-986414 and BMS-986413) amongst high-risk special populations of vaccine non-responders. The aim is to test the hypothesis that for individuals who fail to mount a measurable immune response to a routinely offered SARS-CoV-2 prophylactic vaccine or for those who are not able to receive such a vaccine (for example those receiving a bone marrow transplant or starting chemotherapy treatment), the receipt of subcutaneous injection of two long-acting neutralising antibodies BMS-986414 and BMS-986413 will confer durable high titres and subsequent immunological protection against SARS-CoV-2 infection.120 eligible participants will be enrolled and followed up for 48 weeks after the one-time dosing visit. Primary inclusion criteria are patients age 18 years and older and either 1) have received two doses of a routine NHS standard of care SARS-Cov-2 vaccine and do not have detectable serum SARS-CoV-2 anti-spike antibodies in routine NHS assays more than two weeks post-vaccination, or do not have protective levels of antibody or 2) be ineligible to receive a SARS-CoV-2 prophylactic vaccine. This could be because they need to commence immediate systemic chemotherapy or receive bone marrow and therefore the requirement to initiate profound immune suppression. Primary objectives are to determine the safety, tolerability and detectable SARS-CoV-2 antibody by specific PPD assay in serum at 12 weeks after enrolment.
The investigators propose to characterize MPs in aHUS and TTP both at the onset and throughout treatment. The investigators believe that the number, size, and cell origin of MPs will differ between these two diseases. The hypothesis is that endothelial derived MPs will be higher in number and comprise a larger portion of the MP population in aHUS and that platelet MPs will comprise a larger number and greater proportion of MPs in TTP. The investigators believe that MP identity and number can be used to reliably differentiate between aHUS and TTP at disease onset.
The project was undertaking by Qilu Hospital of Shandong University in China. In order to report the efficacy and safety of All-Trans Retinoic Acid (ATRA) combining with High-dose Dexamethasone for the treatment of adults with primary immune thrombocytopenia (ITP), compared to conventional high-dose dexamethasone therapy.
Congenital thrombotic thrombocytopenic purpura (TTP), also called Upshaw-Schulman Syndrome or hereditary or familial TTP is a rare, but severe disease. The purpose of this study is to determine how infusions of plasma to patients with congenital TTP correlate with symptoms and signs of activity of the disease, and to determine why some patients need more frequent infusions of plasma than others to prevent acute attacks of the disease.
The project was undertaking by Qilu Hospital of Shandong University and other 13 well-known hospitals in China. In order to report the efficacy and safety of Recombinant Human thrombopoietin combining with Rituximab for the treatment of adults with primary immune thrombocytopenia (ITP), compared to conventional high-dose dexamethasone therapy.
The purpose of this study is to evaluate efficacy, safety and tolerability of blisibimod when administered on top of standard-of-care to subjects with Immune Thrombocytopenic Purpura (ITP).
Thrombopoietin Receptor Agonists (TPO-ra) are novel treatment modalities for patients with refractory Primary Immune Thrombocytopenia (ITP), but only few data are available for long-term effects of these drugs. In this observational study, effects and adverse effects including evaluation of bone marrow biopsies done at fixed intervals will be recorded from ITP patients treated with TPO-ra. For some patients, blood samples will be collected for research use.
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.
The purpose of this study is to determine whether Recombinant Human Interleukin-11 (rhIL-11) Combination Low-dose Rituximab prednisone are effective and safe in the management of Steroid-Resistant/Relapsed Immune Thrombocytopenia (ITP).
This is a prospective trial of single incision versus standard 4-port laparoscopic splenectomy. The hypothesis is that there may be a difference in wound infection rates, operative time, doses of analgesics post-operatively, and patient/parent perception of scars. However, the technical difficulty is considerable and the primary outcome is operative time which will be expressed in minutes.