Active clinical trials for "Myelodysplastic Syndromes"

Patients with refractory hematologic malignancies, including those who develop recurrent disease after allogeneic hematopoietic stem cell transplantation (HSCT) have a dismal prognosis. Historically, both regimen-related mortality and disease recurrence have been significant causes of treatment failure in this heavily pre-treated patient population. Novel therapeutic agents that target molecular signaling mechanisms and increase the sensitivity of leukemic cells to apoptosis may clearly play a role in this setting. This study hypothesizes that interrupting the SDF-1/CXCR4 axis using the selective CXCR4 antagonist plerixafor may be useful as a leukemic stem cell mobilizing agent for patients who are refractory to standard dose chemotherapy and in relapse after an allogeneic transplant. This hypothesis is based on the dependence of leukemia cells on MSCs for survival signals as described above and on the preclinical data that suggest increased efficacy by antileukemia agents when leukemia cells are separated from MSCs. In the present trial, the study proposes to add plerixafor to enhance the conditioning regimen cytotoxicity. At this time the goal is to determine the maximum tolerated dose (MTD) of plerixafor through the process of dose limiting toxicity (DLT) evaluation. Pharmacokinetic studies will be conducted. Additional studies will quantify and the content of leukemia cells and key regulatory and effector T cell populations in the bone marrow and blood before and after exposure to this medication. If the observed outcomes of this trial are promising, it could serve as a platform on which to study further use of plerixafor as a complimentary agent with conditioning as well as other chemotherapeutic regimens for patients with relapsed or refractory hematologic malignancies.

This phase II trial is studying the side effects and how well giving fludarabine phosphate, busulfan, anti-thymocyte globulin followed by donor peripheral blood stem cell transplant, tacrolimus, and methotrexate works in treating patients with myeloid malignancies. Giving chemotherapy, such as fludarabine phosphate and busulfan, before a donor peripheral blood stem cell transplant helps stop the growth of cancer cells. It may also stop the patient's immune system from rejecting the donor's stem 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. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving anti-thymocyte globulin before transplant and tacrolimus and methotrexate after transplant may stop this from happening.

This phase I trial studies the side effects and the best dose of cytarabine when given together with decitabine and vorinostat in treating patients with acute myeloid leukemia or myelodysplastic syndrome that has returned or has not responded to treatment. Drugs used in chemotherapy, such as cytarabine and decitabine, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Vorinostat may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving cytarabine together with decitabine and vorinostat may kill more cancer cells.

Patients will receive escalating doses of ldarubicin combined to Azacitidine given at the FDA/EMEA approved Schedule and dosing. For the Phase I study : Determine the safety and tolerance of escalating doses of Idarubicin combined to Azacitidine in patients with INT-2 or higher risk MDS. For the phase II study: Primary: Evaluate rate and duration of response (according to IWG 2006 criteria and IWG 2000 criteria) to the combination of Idarubicin and Azacitidine in patients with INT-2 or higher risk MDS

RATIONALE: Decitabine may help myelodysplastic cells become more like normal stem cells. PURPOSE: This clinical trial studies differentiation therapy with decitabine in treating patients with myelodysplastic syndrome.

The first goal of this clinical research study is to find the highest safe dose of BP1001, a liposomal Growth Factor Receptor Bound Protein-2 antisense oligodeoxynucleotide (L-Grb2 AS), for patients with Philadelphia Chromosome positive CML, AML, ALL and MDS. The response of the leukemia to this treatment will also be studied. The second goal of this clinical research study is to evaluate the safety and toxicity of the combination of BP1001 and concurrent low-dose ara-C (LDAC) in patients with AML.

The study is aimed to treat low-risk MDS patients,who are dependent on red-blood cell transfusion due to disease-related anemia, and who have a proven resistance towards treatment with erythropoetin-stimulating agents (ESA). The study randomizes patients to receive a treatment with the demethylating agent 5-azacytidine alone or in combination with an ESA. The study thus evaluates, if efficacy of 5-azacytidine, notably on the red-blood cell transfusion-dependence is comparable/inferior to a combination treatment with azacitidine and an ESA (that is if 5-azacytidine can overcome the resistance towards ESA). Being a phase II study, the study assesses, duration of erythroid response, overall survival and time to progression as well as toxicity.

The purpose of this study is to investigate whether lenalidomide would reduce the number of red blood cell transfusions (RBC) needed in anemic (RBC transfusion-dependent) participants with low or intermediate-1 risk MDS without a deletion 5q chromosome abnormality. The study also investigated the safety of lenalidomide use in these participants. Two-thirds of the participants received oral lenalidomide and one-third of the participants received oral placebo.

Primary: To determine the maximum tolerated dose and schedule of decitabine when administered as maintenance therapy after allogeneic hematopoietic stem cell transplantation (alloHSCT) performed for AML or high-risk MDS.

Primary objectives: To determine the maximum tolerated dose (MTD) of SAR103168 and to characterize the dose limiting toxicities (DLTs) in the proposed dose regimen To evaluate the pharmacokinetic (PK) profile of SAR103168 Secondary objectives: To characterize the global safety profile of SAR103168 To evaluate preliminary anti-leukemia activity To investigate the potential induction effect on CYP3A4 and persistence of this effect by using oral midazolam as a probe substrate in patients enrolled into the expanded cohort at the MTD To determine the metabolic pathways of SAR103168 and identify the chemical structures of metabolites To determine the potential impact of SAR103168 on the QTc interval in patients enrolled at the MTD