Active clinical trials for "Leukemia"

This phase I trial is studying the side effects and best dose of SJG-136 in treating patients with relapsed or refractory acute leukemia, myelodysplastic syndromes, blastic phase chronic myelogenous leukemia, or chronic lymphocytic leukemia. Drugs used in chemotherapy, such as SJG-136, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing.

T-cell and B-cell depletion in allogeneic peripheral blood stem cell transplantation by using immunomagnetic negative and positive selection procedures Background: Removal of T-cells from the donor graft (T-cell depletion) offers the possibility for prevention of GVHD and subsequently less transplant related morbidity and mortality after allogeneic stem cell transplantation (SCT). There are several techniques to deplete T-cells from the stem cell grafts e.g. physical, immunological and combined physical / immunological separation methods. All these techniques result in a stem cell graft with sufficient CD34+ stem cells combined with an adequate depletion of T and B cells. CD34+ selected stem cell grafts are very pure and do not contain any additional cell populations. In contrast, CD3+/CD19+ depleted grafts still contain NK-cells, monocytes and dendritic cells that are part of the innate immune system. Theoretically,the presence of these cells may positively influence immunological reconstitution and the graft-versus-leukaemia (GVL) effect, respectively, resulting in improved outcome after SCT Objectives: To evaluate the differences in immunological reconstitution, transplant related mortality, disease-free survival and overall survival after T-cell depleted allogeneic SCT for haematological malignancies using either immunomagnetic CD34+ selection or immunomagnetic CD3+/CD19+ depletion using the CliniMACS system in approximately 270 consecutive patients. Additionally in this study in 20 consecutive patients the kinetics of NK-cel reconstitution and differences in NK-cell repertoire will be monitored. NK-cell mediated anti-tumor reactivity will be monitored in patients transplanted with and without NK-cells in the stem cell graft (CD3+/CD19+ depletion, versus CD34+ selection). Secondary objectives are to evaluate the clinical relevance of minor histocompatibility-specific cytotoxic T-cell responses for the GVL effect, the kinetics of NK-cell reconstitution and differences in NK-cell repertoire using the different T-cell depletion protocols. Design: Single center prospective randomised phase III study Population: Patients eligible for allogeneic SCT according to the standard criteria of our institution who will receive an allogeneic T- and B-cell depleted SCT with peripheral stem cells of an HLA-identical sibling donor or an HLA-identical unrelated voluntary (VUD) donor. Intervention: T-cell depletion will be conducted using two different techniques: either immunomagnetic CD34+ selection or immunomagnetic CD3+/CD19+ depletion. Endpoints: Primary endpoints are immunological reconstitution, relapse, disease free survival and overall survival. Secondary endpoints: NK-cell reconstitution and NK-cell mediated anti-tumour reactivity. Cytotoxic T-cell responses for the GVL effect. Estimated efforts and risks for participating patients: We don't expect any extra patient efforts or risks because T-cell depletion is a standard procedure in our clinic for many years. There is extensive experience with immunological T-cell depletion techniques. We hypothesize CD3+/CD19+ depletion will favour stem cell transplant outcome. Immunological and molecular biological studies will be performed on blood samples already obtained as part of the standard protocol.

This clinical study is being conducted at multiple sites to determine the activity, safety and tolerability of XL999 when given weekly to patients with relapsed or newly-diagnosed AML. XL999 is a small molecule inhibitor against Flk1/kinase insert domain receptor (KDR), PDGFR, c-Kit, FLT3 and SRC. c-Kit and FLT3 are receptors commonly expressed on AML blasts.

Non-randomized, open, dose ranging and dose scheduling study of ascending doses of KW-2449 in subjects with AML, ALL, MDS and CML.

RATIONALE: A peripheral stem cell transplant or an umbilical cord blood transplant from a donor may be able to replace blood-forming cells that were destroyed by chemotherapy or radiation therapy. Giving an infusion of the donor's white blood cells (donor lymphocyte infusion) after the transplant may help destroy any remaining cancer cells (graft-versus-tumor effect). Sometimes the transplanted cells can make an immune response against the body's normal cells. Methotrexate, cyclosporine, tacrolimus, or methylprednisolone may stop this from happening. PURPOSE: This clinical trial is studying how well a donor stem cell transplant or donor white blood cell infusions work in treating patients with hematologic cancer.

In this study, MGCD0103, a new anticancer drug under investigation, is given three times per week to elderly patients with previously untreated acute myelogenous leukemia/high risk myelodysplastic syndrome or adults with relapsed/refractory disease.

RATIONALE: Drugs used in chemotherapy, such as cyclophosphamide, work in different ways to stop the growth of abnormal blood cells, either by killing the cells or by stopping them from dividing. Giving cyclophosphamide together with donor lymphocytes that have been treated in the laboratory may be an effective treatment for myelodysplastic syndromes or myeloproliferative disorders. PURPOSE: This clinical trial is studying the best dose of donor lymphocytes when given together with cyclophosphamide in treating patients with myelodysplastic syndromes or myeloproliferative disorders.

This study will test the combination of clofarabine, cytarabine, and thymoglobulin as a non-myeloablative conditioning regimen for patients with myelodysplastic syndromes or acute myeloid leukemia undergoing allogeneic stem cell transplant.

The purpose of this study is to compare the effects (good and bad) of the medication basiliximab in combination with cyclosporine with cyclosporine alone for the prevention of graft-versus-host disease. This research is being done because there is no completely safe and effective prevention for graft-versus-host disease. It is known that cyclosporine helps with GVHD but we would like to know if the addition of basiliximab will decrease the incidence and/or severity of GVHD after a transplant known as nonmyeloablative ("mini" transplant).

Biological therapies, such as MDX-010, work in different ways to stimulate the immune system and stop cancer cells from growing. This phase I/II trial is studying the side effects and best dose of MDX-010 and to see how well it works in treating patients with recurrent or refractory B-cell non-Hodgkin's lymphoma.