View clinical trials related to Chronic Lymphocytic Leukemia.
Filter by:The goal of this clinical research study is to learn if the combination of fludarabine, cyclophosphamide, alemtuzumab, and rituximab is effective in treating chronic lymphocytic leukemia in patients who have already been treated with chemotherapy. Primary Objectives: Evaluate the therapeutic efficacy, including the complete remission (CR), nodular partial remission (NPR), and partial remission (PR) rates (overall response) of combined cyclophosphamide, fludarabine, alemtuzumab, and rituximab (CFAR) in previously treated patients with Chronic Lymphocytic Leukemia (CLL). Second Objectives: - Assess the toxicity profile of CFAR in previously treated patients with CLL. - Monitor for infection and determine incidence and etiology of infection including cytomegalovirus in patients treated with CFAR. - Evaluate molecular remission by polymerase chain reaction (PCR) for the clonal immunoglobulin heavy chain variable gene in responding patients treated with CFAR. - Assess immune parameters, including pretreatment, during treatment, and post-treatment blood T-cell counts and subset distribution and serum immunoglobulin levels in patients treated with CFAR.
The purpose of the Connect™ Chronic Lymphocytic Leukemia (CLL) Disease Registry is to explore the history and real world management of patients diagnosed with CLL, provide insight into the management of CLL, and evaluate the effectiveness of first, second and subsequent therapeutic strategies employed in both the community and academic settings.
This phase I trial is studying the side effects and the best dose of alvocidib when given together with cyclophosphamide and rituximab in treating patients with high risk B-cell chronic lymphocytic leukemia or small lymphocytic lymphoma. Drugs used in chemotherapy, such as cyclophosphamide, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Alvocidib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as rituximab, can also block cancer growth in different ways. Some block the ability of cancer cells to grow and spread. Other find cancer cells and help kill them or carry cancer-killing substances to them. Giving cyclophosphamide, alvocidib, and rituximab together may kill more cancer cells.
The purpose of this study is to collect a blood sample from patients with Chronic Lymphocytic Leukemia (CLL) and from volunteers without CLL.
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.
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.
B type chronic lymphocytic leukemia (B-CLL) is the most prevalent leukemia in the western world. It is a disease that occurs primarily in aging individuals and occurs more frequently in males than females. Although B-CLL was considered a homogeneous condition, recent studies by our laboratory and others suggest that B-CLL cases can be divided into two subgroups. These sub-groups can be identified by either the presence or the absence of mutations in antibody genes and/or by the percentage of B-CLL cells expressing a particular protein called CD38. These two sub-groups (unmutated antibody genes high percent CD38 and mutated antibody genes low percentage CD38) follow strikingly clinically different courses. For example, the unmutated/CD38+ group experiences a much more aggressive disease and these patients almost invariably die much sooner than the cases in the other group. In addition, the patients in the mutated CD38+ group require much more chemotherapy than mutatedlCD38-. Finally, surprisingly there is a much higher representation of males in the poor outcome unmutated CD38 group than in the better outcome group. The reasons for these differences in clinical outcome and gender bias are unknown.
The primary objectives of this study are to determine the maximum tolerated dose (MTD) or optimal biologic dose (OBD) and safety profile of CAT-8015 in participants with relapsed or refractory advanced B-cell NHL (diffuse large B-cell lymphoma [DLBCL], follicular lymphoma [FL], mantle cell lymphoma [MCL]) or CLL.
B-CLL is the most prevalent leukemia in the Western hemisphere, accounting for ~25% of all leukemia's (1). This disease occurs virtually exclusively in the aging population, with the median age of diagnosis ranging between the mid 60s and the early 70s. Indeed, its occurrence before the age of 50 is quite unusual. This increase in occurrence with age is not unique to B-CLL; rather, it is characteristic several B cell lymphoproliferative disorders (e.g., non-Hodgkin's lymphoma, multiple myeloma). Gender and race also influence the development of B-CLL. Thus, the ratio of men: women is ~2:1 and the prevalence is increased in Caucasians. The rate of occurrence of B-CLL among Asians is significantly lower than for Caucasians and this does not increase with immigration to the West. DNA sequence analyses performed in our laboratory and in those of others indicate that B-CLL cells from unrelated patients share Ig V gene characteristics. These include the use of selected genes, the association of these genes with certain D and JH gene segments that code for unique CDR3 motifs, and the occasional occurrence of highly similar VHDJH + VLJL pairs. In ~50% cases, these rearranged genes are mutated, whereas in the others mutations are infrequent; this difference is related to the VH gene family used by the B-CLL cell.
This phase II trial studies how well giving ofatumumab together with pentostatin and cyclophosphamide works in treating patients with untreated chronic lymphocytic leukemia or small lymphocytic lymphoma. Monoclonal antibodies, such as ofatumumab, can block the ability of cancer cells to grow and spread. Drugs used in chemotherapy, such as pentostatin and cyclophosphamide, 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. Giving ofatumumab together with pentostatin and cyclophosphamide may be a better way to block cancer growth.