View clinical trials related to Anemia, Aplastic.
Filter by:Severe aplastic anemia is a fatal disease and patients without HLA matched siblings need alternative treatment option. Cord blood transplantation (CBT) has become an alternative treatment means in various diseases, but it has not been proved to be good for severe aplastic anemia. Double units CBT is proposed to have better engraftment potential and and we reported successful double units UCBT after engraftment failure with single unit with promising result. To increase the engraftment potential, fludarabine, cyclophosphamide plus TBI conditioning regimen for double units cord blood transplantation was proposed for the patient with severe aplastic anemia without HLA-matched donor.
This clinical trial is studying how well giving fludarabine phosphate and melphalan together with total-body irradiation followed by donor stem cell transplant works in treating patients with hematologic cancer or bone marrow failure disorders. Giving low doses of chemotherapy and total-body irradiation before a donor peripheral blood stem cell transplant helps stop the growth of cancer cells or abnormal cells. It may also stop the patient's immune system from rejecting the donor's stem cells. The donated stem cells may replace the patient's immune cells and help destroy any remaining cancer or abnormal cells (graft-versus-tumor effect)
The goal of this clinical research study is to learn if combining the drugs thymoglobulin, methylprednisolone, cyclosporine, and G-CSF (NeupogenTM or NeulastaTM ) can help to control severe aplastic anemia (AA) or hypoplastic myelodysplastic syndrome (MDS). The safety of this combination therapy will also be studied.
This study will use neuropsychological tests to look at nervous system side effects of Cyclosporine (CsA) in patients with aplastic anemia. CsA is used as part of an immunosuppressive regimen in treating severe aplastic anemia. The drug can produce nervous system side effects, such as tremor and, less commonly, insomnia, anxiety, headache, confusion or seizures. This study will look at effects of CsA on intellectual ability, depression, anxiety, attention, concentration, memory, perception, coordination, and thought processing in patients Patients 15 years of age or older who have severe aplastic anemia may be eligible for this study if they: - are co-enrolled in a Clinical Center protocol in which they will receive CsA - have not taken CsA for 6 months before enrolling in this study Participants undergo neuropsychological testing. In addition, they provide blood samples and their clinical data are reviewed for things that may influence the interpretation of findings from the testing, such as results of blood tests, types of medications taken, number of transfusions required, etc. The procedures are as follows: Before first dose of cyclosporine: - Patients are asked about prior problems with their nervous system, prior treatment for their aplastic anemia (including transfusions), prior infections, and current medications. They then complete the following sets of tests: - Battery 1: A set of three tests that measure intellectual ability, level of depression (if any) and level of anxiety (if any). - Battery 2: A set of seven tests that measure changes in the central nervous system and how these changes affect attention, concentration, memory, perception, coordination, and thought processing. - Patients provide a half teaspoon of blood for this study at the same time blood is collected for their primary treatment protocol. 6 months and 12 months after starting cyclosporine - Patients are asked about treatment for their aplastic anemia (including transfusions), infections, and changes in medications that have occurred since they started taking cyclosporine. They then repeat the set of tests in Battery 2. - Patients provide a half teaspoon of blood for this study at the same time blood is collected for their primary treatment protocol.
Anti-thymocyte globulin (ATG) has been used in severe aplastic anemia as a part of the conditioning regimen. Among the many kinds of ATG preparations, thymoglobulin had been found to be more effective in preventing GVHD and rejection of organ transplants. As the fludarabine based conditioning regimens without total body irradiation have been reported to be promising for BMT/PBSCT from alternative donors in SAA, thymoglobulin was added to fludarabine and cyclophosphamide conditioning to reduce GVHD and to allow good engraftment in UBMT/UPBSCT.
The main purpose of this investigational (not approved by the FDA) Phase I research is to test whether transplantation of umbilical cord blood cells can be safely supplemented with a transfusion of a portion of these cells that have been sorted (collected from a special machine called a cell sorter) and then either infused a few hours after the standard transplant or for some patients grown in a special system in the laboratory prior to the transplant, designed to increase the number of stem cells transplanted. This system is currently in the early phases of testing.
Objectives: 1. To evaluate disease free survival after Campath 1H-based in vivo T-cell depletion and non-myelo-ablative ablative stem cell transplantation in patients with hematologic malignancies. 2. To evaluate the incidence and severity of acute and chronic GVHD after Campath 1H-based in vivo T-cell depletion, in patients with hematologic malignancies undergoing non-myelo-ablative stem cell transplantation. 3. To evaluate engraftment and chimerism after Campath 1H-based in vivo T-cell depletion and non-myelo-ablative ablative stem cell transplantation in patients with hematologic malignancies.
This study is designed to determine whether Umbilical Cord Transplantation (UCB) can be substituted for adult bone marrow cells in the standard stem cell transplant regimens used at this hospital for subjects who do not have stem cell donors.
Subjects will be diagnosed with a hematological malignancy (cancer of the blood), which is unlikely to be cured with conventional non-transplant therapy. The best results of bone marrow transplant are obtained with the donor is a relative that has identical tissue type (HLA-type). These subjects will not have such a donor available but they will have a appropriately matching unrelated umbilical cord blood unit (UCB). However, the cord blood unit does not contain a high enough number of cells and may take longer to engraft (or grow). The purpose of this study is to determine whether the addition of stem cells from a family member to supplement a standard unrelated cord blood transplant is safe and will increase the success of the cord blood transplantation procedure. Subjects enrolled in this study will receive an unrelated cord blood transplant plus a haplo-identical (half-matched), T-cell depleted stem transplant from a related donor. The goal of this study is to determine whether the addition of the related stem cells accelerates bone marrow recovery and improves long-term disease free survival.
The purpose of this study is to provide allogeneic stem cell transplantation to patients who have not traditionally undergone this procedure because of it high incidence of treatment related side effects. We hope to decrease these side effects by decreasing the chemotherapy dose prior to transplant (non-myeloablative, smaller dose of chemotherapy given so bone marrow is not completely eliminated) and by using donated stem cells to treat cancer of the blood.