View clinical trials related to Hematologic Diseases.
Filter by:The aim of this protocol is to clarify the role of HLA matching in unrelated umbilical cord blood (UCB) transplantation and to identify the level of HLA matching required assuring successful outcome of unrelated UCB transplantation.
The purpose of this study is to test the safety and effectiveness of Humate-P® to prevent bleeding in patients with von Willebrand Disease who are undergoing surgery.
The aim of this study is to investigate whether intravenous ciprofloxacin is as effective as cefepime for the initial treatment of febrile neutropenia developed in patients with hematologic diseases.
The purpose of this study is to determine the safety and effectiveness of oral SCIO-469 in patients with myelodysplastic syndromes. SCIO-469 belongs to a new class of treatments that inhibit expression and activity of cytokines that play a role in the progression of MDS.
The purpose of the study is to determine whether oral contraceptives, desmopressin acetate, and/or tranexamic acid are effective in the treatment of women with menorrhagia who are diagnosed with a bleeding disorder.
The purpose of this study is to compare liberal red blood cell transfusion therapy with restrictive red blood cell transfusion therapy in surgical patients with cardiovascular disease or risk factors.
In recent decades, hematologists have noticed that persons of African descent sometimes have lower white blood cell counts of a certain type, called granulocytes. These cells help to fight infections. The lower number of granulocytes in this situation does not appear to lead to more infections, and these individuals do not have any symptoms. This condition is called benign ethnic neutropenia (BEN), and is observed in a small percentage of individuals of African descent. This study will investigate the condition by studying people with and without BEN. The goals of this study are to: 1. identify individuals of African descent with BEN. 2. determine the effects of two drugs, G-CSF and dexamethasone, on granulocyte production and movement. 3. determine whether there are differences in those with and without BEN in the way genes are stimulated after the administration of G-CSF and dexamethasone. Study participants will be asked to interview with the research team, undergo physical exams, donate a blood sample, and receive G-CSF by injection, followed by dexamethasone (orally) about three weeks later. They also will be required to undergo apheresis three times, a procedure in which blood is drawn from a donor and separated into its components. Some components are retained for research analyses, such as granulocytes, and small amount of blood; the remainder is returned by transfusion to the donor. This procedure will be required of participants before they receive G-CSF, the day after they receive G-CSF, and the day after they receive dexamethasone. Gene messages (mRNA will be isolated from granulocytes, and analyzed to better understand granulocyte growth and movement.
To use transcranial Doppler (TCD) ultrasound to detect stroke risk in children with sickle cell disease.
Participants in this study have a hematologic malignancy (a disorder in the bone marrow that affects the body's ability to create blood) that might benefit from receiving an allogeneic stem cell transplant (meaning the cells come from a donor) from a family member or nearly identical matched donor. The donor may either be a matched sibling, a mismatched family member, or an unrelated person. Usually these patients are given high doses of chemotherapy before receiving a stem cell transplant to keep their immune system from rejecting the donor stem cells and to kill any diseased cells that remain in the body. However, this group of patients have a high risk of developing possibly life-threatening treatment-related side effects such as infections, damage to vital organs such as lungs, liver, kidney and heart, as well as graft versus host disease (GVHD). Instead of the high dose chemotherapy and radiotherapy usually given before a transplant, this research study uses a new pre-transplant combination of three drugs, Fludarabine, Anti-CD45 and CAMPATH-1H with low dose radiotherapy. Fludarabine is a chemotherapy drug while Anti-CD45 and CAMPATH-1H are antibodies against certain types of blood cells, including those which are causing this disease. CAMPATH-1H is particularly important because it stays active in the body for a long time after it is given, which means it may work longer to prevent GVHD symptoms. Anti-CD45 may help in eradicating residual malignant cells. All these agents also help in preventing rejection of donor stem cells. This study is designed to give a less intense chemotherapy and radiotherapy, so that the life-threatening toxicities of conventional high dose chemotherapy and radiotherapy regimen can be reduced, while maintaining the ability to cure cancer.
To establish a link among Chlamydia infection, sickle cell anemia, and stroke risk.