Active clinical trials for "Purpura, Thrombocytopenic"

The purpose of this study is to assess the feasibility of a randomized, double blind, placebo controlled trial of add-on rituximab for non-splenectomized adults with acute immune thrombocytopenic purpura (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.

This is a randomized, open-label, five-period, balanced crossover study conducted in approximately 40 healthy adult subjects enrolled at one study center in the USA. Subjects receive five eltrombopag treatments: tablet fasted, Powder for Oral Suspension (PfOS) fasted, PfOS with a high calcium meal, PfOS 2 hours prior to a high calcium meal, and PfOS 2 hours after a high calcium meal, and each treatment is a single 25 mg dose. There is a 10 to 14 day washout between periods, and between the last dose of study drug and the follow-up visit. During each treatment period, subjects undergo serial PK sampling over 72 hours for measurement of plasma eltrombopag concentrations. Safety is assessed by vital signs, clinical safety laboratory assessments, and adverse events reporting.

A drug-drug interaction study between eltrombopag and cyclosporine is being conducted to support the use of these drugs together in subjects, such as those with severe aplastic anemia or immune thrombocytopenia purpura. The primary objective of the study is to evaluate the effect of cyclosporine on the pharmacokinetics of eltrombopag. This is a Phase I, open-label, randomized, three-period cross-over study in healthy adult subjects. The study consists of a screening visit and three treatment periods. All subjects will be randomized to receive one of the three treatments in each treatment period separated by washout periods of 3-10 days. The total duration of a subject's participation in the study from screening to final discharge is up to approximately 6 weeks (assuming 3 day washouts between treatment periods). Approximately 39 healthy subjects will be enrolled with the goal of completing at least 10 subjects per sequence (total 30).

Immunologic thrombcytopenic purpura (ITP) affects both children and adults. The incidence is estimated in adults about 1,6/100 000/per year. Chronic and relapsing forms of the disease that represent 70% of adult cases are associated with impairment of quality of life related to treatments side effects and bleeding. ITP is secondary to the destruction of circulating platelets through an auto-immune process and to a decrease of platelet production in bone marrow. Auto antibodies are usually directed against epitopes of the GPIIb/IIIa, expressed by platelets. The destruction of the platelets seems to occur mainly in the spleen through antibody dependent cytotoxicity. Both macrophages and cytotoxic T lymphocytes subsets participate to the platelet destruction through the CD16, the low affinity receptor for the Fc of IgG. Thus the CD16 "pathway" is a target for treatments in ITP as for example intravenous immunoglobulins and more recently inhibitors of the syk kinase.

This is a study to investigate if eltrombopag can be used instead of Intravenous Immune Globulin (IVIG) in patients with ITP, to adequately raise their platelet count when they undergo minor or major surgery. Eltrombopag is a daily, oral pill approved for treatment of ITP. IVIG is a blood product frequently used to treat ITP. Patients with ITP who need surgery have to get treatment to increase their platelet count. IVIG is commonly used for this purpose but eltrombopag may be more effective and convenient for patients.

This is an extension study designed to assess the safety and durability of platelet count increases with romiplostim treatment of thrombocytopenic patients with immune (Idiopathic) thrombocytopenia purpura. This study is available to pediatric patients who have completed a previous romiplostim ITP study and meet the eligibility criteria of this study.

This study evaluates the safety and efficacy of 6 weeks dosing Hetrombopag Olamine in Chronic Idiopathic Thrombocytopenic Purpura Patients. All of the subjects in this study receive Hetrombopag.

The purpose of this study is to determine the efficacy of H. pylori eradication for the treatment of chronic or persistent immune thrombocytopenic purpura (ITP) patients with moderate thrombocytopenia. This is a multi-center, open label, prospective randomized phase IIl study.

Thrombocytopenia refers to a reduction in platelet count to (<150 × 109/L). Immune thrombocytopenic purpura is an acquired autoimmune disorder defined by isolated thrombocytopenia and the exclusion of other causes of thrombocytopenia