View clinical trials related to Myelodysplastic Syndrome.
Filter by:Background: Major problems with stem cell transplantation (SCT) for cancer treatment are a lack of suitable donors for patients without a human leukocyte-antigen (HLA) tissue-matched sibling and graft-versus-host disease (GVHD), a serious side effects of immune-suppressing chemotherapy that is given to bring the cancer under control before SCT. In GVHD, the patients immune system attacks the transplanted donor cells. This study will try to improve the results of SCT from unrelated HLA-matched donors using targeted immune-depleting chemotherapy to bring the cancer under control before transplantation and to lower the chance of graft rejection, followed by reduced-intensity transplant chemotherapy to make the procedure less toxic. Objectives: To evaluate the safety and effectiveness of targeted immune-depleting chemotherapy followed by reduced-intensity transplant chemotherapy in patients with advanced cancers of the blood and immune system. To evaluate the safety and effectiveness of two different drug combinations to prevent GVHD. Both regimens have been successful in preventing GVHD, but they work by different mechanisms and affect the rebuilding of the immune system after the transplant. Eligibility: People 18 to 74 years of age with advanced or high-risk cancers of the blood and immune system who do not have a suitable HLA-matched sibling. Design: All patients receive chemotherapy before transplant to treat the cancer and suppress immune function. All patients receive a conditioning regimen of cyclophosphamide for 4 days and fludarabine for 4 days before SCT to prepare for the transplant. Patients are randomly assigned to one of two combination drug treatments to prevent GHVD as follows: - Group 1: Tacrolimus starting 3 days before SCT and continuing for 6 months, plus methotrexate on days 1, 3, 6, and 11 post-SCT, plus sirolimus starting 3 days before the SCT and continues for 6 months following SCT. - Group 2: Alemtuzumab for 4 days starting 8 days before SCT, plus cyclosporine starting 1 day before SCT and continuing for 6 months. Patients receive the donors stem cells and immune cells 2 days after completing the conditioning regimen. Patients are followed at the clinic regularly for the first 6 months after SCT, and then less often for at least 5 years. Some visits may include bone marrow aspirates and biopsies, blood draws, and other tests to monitor disease status. A skin biopsy, oral mucosa biopsy, and saliva collection are done to study chronic GVHD.
The purpose of this study is to better understand why some women who survived cancer or a related illness later develop diabetes, problems with their cholesterol, or other problems that may lead to heart disease. Because these problems may be related to treatment with total body irradiation and a stem cell transplant, the investigators will compare the rates of obesity, cholesterol problems, and diabetes between women who were treated with total body irradiation and a stem cell transplant and women who were not. The amount and location of fat stores in the abdomen is more important than overall weight or total body fat in the development of diabetes and cholesterol problems. In general, fat can be stored in several areas in the abdomen: around the organs (visceral fat), under the skin (subcutaneous fat), and in the liver (liver fat). People with higher amounts of fat around the organs (visceral fat), even those with a normal weight, are more likely to become diabetic or have high cholesterol. The amount of fat in each of these areas can be measured with an abdominal magnetic resonance imaging (MRI). In this study, the investigators will use blood tests, height, weight, waist circumference, blood pressure measurements, and an abdominal MRI to evaluate for several risk factors of heart disease, including cholesterol problems, diabetes and pre-diabetes, elevated blood pressure, and increased abdominal fat.
Primary Objective: 1. To assess the self-reported symptoms and the plasma cytokine levels of AML/MDS patients pretransplantation and posttransplantation with allogeneic blood and marrow in order to identify changes in symptoms (or symptom clusters) and changes in cytokines that may be related to the conditioning regimen and/or to the development of GVHD during the 100 days posttransplant. Based on the current literature, both animal and human research, in this study we hypothesize that increases in TNF alpha to be associated with poor appetite, sleep disturbance and fatigue, but not with increases in pain, depression and numbness.
The goal of this clinical research study is to learn if combining cord blood units will be safe and result in the cells "taking" faster in recipients. The cord blood units will have their cell number increased in the lab using cells from a family member or they will be collected from an unrelated healthy donor.
The study hypotheses is that the introduction of dose escalated treosulfan, in substitution to busulfan, will reduce toxicity after allogeneic transplantation while improving myeloablation and and disease control in patients with AML and MDS not eligible for standard transplantation.
The different mechanisms of action between Antithymocyte globulin and cyclosporine can improve the effectivity when both are used in combination in patients with myelodysplastic syndrome.
Association group of therapeutic specialities authorized in a remission induction treatment(FLAG-IDA: fludarabine, cytarabine, G-CSF (lenograstim) and idarubicin) and an intensive postremission treatment with authorized therapeutic association specialities and with/without Autologous Hemopoietic Stem Cell Transplantation or Bone Marrow Transplantation in Patients With High Risk Myelodysplastic Syndromes or Secondary Acute Myeloblastic Leukemia.
Objectives: Primary: 1. To establish the feasibility of delayed infusion of ex vivo anergized donor peripheral blood mononuclear cells (PBMC) after CD34 selected megadose haploidentical hematopoietic stem cell transplant (HSCT) Determine the feasibility of collecting parental allogeneic stimulator cells to induce anergy to the non-shared donor:recipient haplotype Determine the feasibility of collecting donor PBMC as a source of T cells for ex vivo anergization Determine the number of transplanted individuals who meet the criteria for proceeding to delayed infusion of ex vivo anergized donor PBMC 2. To establish the safety of delayed infusion of ex vivo anergized donor PBMC by establishing the maximal number of donor T cells that can be infused without unacceptable graft-versus-host disease (GVHD) Secondary: 1. To evaluate in vitro the induction and specificity of alloantigen hyporesponsiveness in donor PBMC after ex vivo anergization 2. To assess in vitro the function of immune cells engrafted in the recipient To assess in vitro whether alloantigen hyporesponsive donor T cells are present in the recipient after HSCT To develop preliminary in vitro data on the extent of pathogen-specific immunity and its rate of recovery To describe the patterns of opportunistic infections in patients so treated
The goal of this clinical research study is to learn if giving busulfan in a dose based on blood levels, along with a fixed (unchanging) dose of fludarabine, is more effective and causes fewer side effects for AML or myelodysplastic syndrome patients than the standard method of giving a fixed busulfan dose based on body size, along with a fixed dose of fludarabine. The safety of dosing based on blood levels will also be studied.
The goal of this clinical research study is to find the best dose of clofarabine and fludarabine that can be given with busulfan followed by an allogeneic blood stem cell transplant. Researchers will study whether this combination can help to control the disease, and look at the safety of this combination. Researchers also want to find out if combining busulfan with clofarabine alone or combining busulfan with both fludarabine and clofarabine will improve the treatment, compared with the previous standard method using busulfan and fludarabine alone.