View clinical trials related to Leukemia, Lymphoid.
Filter by: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.
In this research study we will start by looking for the highest dose of pyrimethamine that can be given safely to CLL patients without severe or unmanageable side effects. This dose will then be used for a larger Phase II study to assess the efficacy of pyrimethamine for the treatment of CLL/SLL. Pyrimethamine is an antibiotic that is used for the treatment of certain infections. Previous research studies have shown that pyrimethamine may target a protein in tumor cells, called STAT3, which may be important for the growth of chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) cells. Pyrimethamine can kill CLL/SLL cells in the laboratory, and we are therefore undertaking this study to assess whether pyrimethamine will result in clinical benefit or tumor responses in CLL in patients.
This study will assess the pharmacokinetics of imatinib in pediatric patients ages 1 to <4 years of age to help develop dosing regimens
This randomized, open-label, parallel group study will assess the effect on response rate and the safety of MabThera added to either bendamustine or chlorambucil in patients with chronic lymphocytic leukemia. Patients will be randomized to receive six 4-week cycles of either A) MabThera (375mg/m2 iv day 1 of cycle 1, 500mg/m2 iv cycles 2-6) plus bendamustine (90mg/m2 as first-line or 70mg/m2 as second-line therapy, iv on days 1 and 2, cycles 1-6), or B)MabThera plus chlorambucil (10mg/m2 po daily, days 1-7, cycles 1-6). Patients in group B can receive up to 6 further cycles of chlorambucil as monotherapy. Anticipated time on study treatment is 6-12 months, and target sample size is 600-700 individuals.
This clinical trial studies massage therapy given by caregiver in treating quality of life of young patients undergoing treatment for cancer. Massage therapy given by a caregiver may improve the quality of life of young patients undergoing treatment for cancer
The purpose of this study is to evaluate if enteral docosahexaenoic acid (DHA) administration during the first three months of treatment reduces the deterioration of nutritional status, treatment toxicity and early mortality in children with acute lymphoblastic leukemia.
Patients with chemo refractory CLL have a poor prognosis. 2 independent mechanisms are attributed to the development of chemoresistance in CLL. The first is a shift in the balance between pro- and anti-apoptotic regulators. The second mechanism is based on acquired mutations resulting in a dysfunctional p53 response. Recent studies indicate that the tyrosine kinase inhibitor dasatinib acts synergistically with both purine analogies and alkylating agents. Also, dasatinib has the potency to restore the apoptotic balance of CLL cells. Hypothesis: Dasatinib will be clinically active in chemo-refractory CLL patients and will act synergistically with the purine-analogue fludarabine.
This study is a means of providing transplantation to those patients who would be a stem cell transplant candidate who do not have an appropriate donor. The use of CD34 selected haploidentical donor with an umbilical cord unit may help provide earlier engraftment without the need for long term immunosuppression. This study tests a new method of bone marrow transplantation called combined haploidentical-cord blood transplantation. In this procedure, some of the blood forming cells (the stem cells) from a partially human leukocyte antigen (HLA) matched (haploidentical) related donor are collected from the blood, as well as cells from an umbilical cord are transplanted into the patient (the recipient) after administration of a "conditioning regimen". A conditioning regimen consists of chemotherapy and sometimes radiation to the entire body (total body irradiation, or TBI), which is meant to destroy the cancer cells and suppress the recipient's immune system to allow the transplanted cells to take (grow).
Patients with hematologic malignancies will receive myeloablative chemotherapy followed by stem cell rescue with bone marrow or hematopoietic peripheral blood stem cells collected by apheresis from a filgrastim- (G-CSF)-mobilized haploidentical related-donor, ie, hematopoietic peripheral blood stem cell transplant (HSCT).
This is an open-label, dose-escalation Phase 1 study of the investigational agent, ON 013105. In laboratory animal studies, ON 013105 has demonstrated anti-cancer activity. The purpose of this study is to determine the highest dose of ON 013105 that can be given safely in patients with relapsed/refractory Lymphoma or B-cell Acute Lymphocytic Leukemia (Philadelphia chromosome negative). Patients will receive weekly 2-hour IV infusions of ON 013105 at higher and higher doses until intolerable side effects are observed. It is important to know the highest safe dose so additional studies can be done.