Active clinical trials for "Bone Marrow Failure Disorders"

This phase I/II trial studies how well cytokine-treated veto cells work in treating patients with hematologic malignancies following stem cell transplant. Giving chemotherapy and total-body irradiation before a stem cell transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer cells. When the healthy stem cells from a donor are infused into the patient, they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Cytokine-treated veto cells may help the transplanted donor cells to develop and grow in recipients without causing graft-versus-host-disease (GVHD - when transplanted donor tissue attacks the tissues of the recipient's body).

This is a Phase I/II, open label, single center study to assess the safety and tolerability of EXG34217 in bone marrow failure patients with telomere biology disorders.

The purpose of this study is to examine if it is feasible to administer decitabine and filgrastim after allogenic hematopoietic stem cell transplant (HCT) in children and young adults with myelodysplastic syndrome, acute myeloid leukemia and related myeloid disorders, and if the treatment is effective in preventing relapse after HCT. The names of the study drugs involved in this study are: Decitabine (a nucleoside metabolic inhibitor) Filgrastim (a recombinant granulocyte colony-stimulating factor (G-CSF)

Background: Stem cell transplants from related donors (allogenic stem cell transplants) can be used to treat individuals with certain kinds of severe blood diseases or cancers, such as severe anemia. Allogenic stem cell transplants encourage the growth of new bone marrow to replace that of the recipient. Because stem cell transplants can have serious complications, researchers are interested in developing new approaches to stem cell transplants that will reduce the likelihood of these complications. By reducing the number of white blood cells included in the blood taken during the stem cell collection process, and replacing them with a smaller amount of white blood cells collected prior to stem cell donation, the stem cell transplant may be less likely to cause severe complications for the recipient. Researchers are investigating whether altering the stem cell transplant donation procedure in this manner will improve the likelihood of a successful stem cell transplant with fewer complications. Objectives: - To evaluate a new method of stem cell transplantation that may reduce the possibly of severe side effects or transplant rejection in the recipient. Eligibility: Recipient: Individuals between 4 and 80 years of age who have been diagnosed with a blood disease that can be treated with allogenic stem cell transplants. Donor: Individuals between 4 and 80 years of age who are related to the recipient and are eligible to donate blood. OR unrelated donors found through the National Marrow Donor Program. Design: All participants will be screened with a physical examination and medical history. DONORS: Donors will undergo an initial apheresis procedure to donate white blood cells. After the initial donation, donors will receive injections of filgrastim to release bone marrow cells into the blood. After 5 days of filgrastim injections, donors will have apheresis again to donate stem cells that are present in the blood. RECIPIENTS: Recipients will provide an initial donation of white blood cells to be used for research purposes only. From 7 days before the stem cell transplant, participants will be admitted to the inpatient unit of the National Institutes of Health Clinical Center and will receive regular doses of cyclophosphamide, fludarabine, and anti-thymocyte globulin to suppress their immune system and prepare for the transplant. After the initial chemotherapy, participants will receive the donated white blood cells and stem cells as a single infusion. After the stem cell and white blood cell transplant, participants will have regular doses of cyclosporine and methotrexate to prevent rejection of the donor cells. Participants will have three doses of methotrexate within the week after the transplant, but will continue to take cyclosporine for up to 4 months after the transplant. Participants will remain in inpatient care for up to 1 month after the transplant, and will be followed with regular visits for up to 3 years with periodic visits thereafter to evaluate the success of the transplant and any side effects.

This project aims to investigate the therapeutic and repair effects of cord blood mononuclear cells (MNCs) on bone marrow failure after chemotherapy in children with malignant diseases. It is planned to collect 20 malignant children with bone marrow failure after chemotherapy and randomly divide them into two groups. The umbilical cord blood mononuclear cells were injected, ≥1×10^8 per infusion, once a week, and the recovery time of peripheral blood leukocytes, neutrophils, platelets and hemoglobin was observed. According to the recovery of myelosuppression, stop when the peripheral blood reaches leukocytes>1×10^9/L, neutrophils>0.5×10^9/L, platelets>25×10^9/L, and hemoglobin>60g/L at the same time. Use, share 1-4 times. Statistical software was used to compare the changes of peripheral blood leukocytes, neutrophils, platelets and hemoglobin before the start of the test (0d) and 1d, 3d, 5d, 7d, 10d, and 14d after the start of the test, as well as the severity of concurrent infections and antibiotic use Time, number of infusions of blood products.

This research is being done to learn if a new type of haploidentical transplantation using TCR alpha beta and CD19 depleted stem cell graft from the donor is safe and effective to treat the patient's underlying condition. This study will use stem cells obtained via peripheral blood or bone marrow from parent or other half-matched family member donor. These will be processed through a special device called CliniMACS, which is considered investigational.

The purpose of this study is to determine whether a lung transplantation prior to bone marrow transplantation (BMT) would allow for restoration of pulmonary function prior to BMT, allowing to proceed to BMT, to restore hematologic function.

The objective of this study is to evaluate the efficacy of using a reduced-intensity condition (RIC) regimen with umbilical cord blood transplant (UCBT), double cord UCBT, matched unrelated donor (MUD) bone marrow transplant (BMT) or peripheral blood stem cell transplant (PBSCT) in patients with non-malignant disorders that are amenable to treatment with hematopoietic stem cell transplant (HSCT). After transplant, subjects will be followed for late effects and for ongoing graft success.

This is a Phase II prospective trial to assess the rates of donor engraftment using reduced intensity conditioning (RIC) hematopoietic stem cell transplant (HSCT) and post-transplant cyclophosphamide (PTCy) for patients with primary immune deficiencies (PID), immune dysregulatory syndromes (IDS), and inherited bone marrow failure syndromes (IBMFS).

This phase II trial tests whether treosulfan, fludarabine, and rabbit antithymocyte globulin (rATG) work when given before a blood or bone marrow transplant (conditioning regimen) to cause fewer complications for patients with bone marrow failure diseases. Chemotherapy drugs, such as treosulfan, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Fludarabine may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. rATG is used to decrease the body's immune response and may improve bone marrow function and increase blood cell counts. Adding treosulfan to a conditioning regimen with fludarabine and rATG may result in patients having less severe complications after a blood or bone marrow transplant.