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Find 1,651 clinical trials for leukemia near Maryland. Connect with research centers in your area.
Showing 1241-1260 of 1,651 trials
NCT00061581
Bone marrow transplantation (BMT) is a risky procedure. If doctors could reduce the complications, BMT would be safer to use for a wider range of conditions. The purposes of this study are * to prevent graft rejection by increasing the amount of immunosuppression and by giving some lymphocytes from the donor before transplant; * to prevent graft-versus-host disease (GVHD) by transplanting T-cell depleted stem cells; * to improve the immune effect against residual leukemia by the add-back of donor lymphocytes before transplant and six or more weeks after transplant. Beyond the standard transplant protocol, study participants will undergo additional procedures. First, along with total body irradiation, patients will receive two drugs (a high dose of cyclophosphamide and fludarabine) to suppress immunity and prevent rejection of the transplant. Second, four days before the transplant, patients will be given donor lymphocytes that have been irradiated to make them incapable of causing GVHD. On the day of the transplant, patients will receive an infusion of T-cell depleted bone marrow stem cells. Finally, patients will receive two doses of add-back donor T-cells (45 and 100 days post transplant) and the immunosuppressive drug cyclosporine starting on day 44 until about six months after transplant. Study participants must be between the ages of 10 and 56 and have a family member who is a suitable stem cell donor match.
NCT02226861
Background: \- Stem cell transplantation from a partially matched donor can lead to graft-versus-host disease (GVHD). Researchers want to learn how to improve these transplantations. Objective: \- To see if very low doses of Interleukin-2 after a partially matched transplantation prevent GVHD. Eligibility: * Recipients: age 18 65, with certain bone marrow or lymphatic system diseases and an available family member with partial tissue match. * Donors: age 18 80. Design: * Recipients will be screened with medical history, physical exam, and many tests including blood and tissue tying. * Donors will be screened with medical history, physical exam, blood tests and tissue typing. * Recipients will stay in the hospital 3 6 weeks. * All participants will have apheresis. Blood is drawn from one arm, run through a machine that collects white blood cells, then returned into the other arm. * Recipients will have: * Intravenous (IV) line placed under the skin and into a neck vein, to stay throughout transplant and recovery. They may also have a catheter inserted for collecting immune cells. * Bone marrow sample taken by needle. They will have 3 more after transplant. * Donors will have: * Filgrastim injected once daily for 5 6 days. * Stem and immune cells collected by another apheresis. * Recipients will get: * Eight 30-minute doses of radiation, sitting at a machine. * Donor immune cells by IV, 6 days before the transplant day. * Chemotherapy drugs by IV. \<TAB\>\<TAB\>- Donor stem cells by IV on transplant day. * After transplant, recipients will give self-injections of very low doses of Interleukin-2 once daily for about 12 weeks. * Before and after transplant, recipients will get medicine to suppress the immune system and antibiotics to prevent infections * Recipients must stay near NIH for 3 6 months after transplant. * All recipients and donors will have 3 years of follow-up.