Active clinical trials for "Waldenstrom Macroglobulinemia"

RATIONALE: Biological therapies such as beta alethine use different ways to stimulate the immune system and stop cancer cells from growing. PURPOSE: Phase I/II trial to study the effectiveness of beta alethine in treating patients who have Waldenstrom's macroglobulinemia.

Hypothesis; That inhibition of plasma Blys by the monoclonal antibody Belimumab will reduce both the survival of the lymphoplasmacytoid cells of Waldenstrom Macroglobulinaemia (WM), and their production of monoclonal IgM, resulting in a reduction of IgM paraprotein.

Patients will receive RCD or PCD combination as induction treatment followed by rituximab or velcade maintenance therapy, as the investigators try to compare the, very good partial remission (VGPR) rate, complete remission (CR) rates, Overall remission rate (MR+CR + VGPR + partial remission (PR) rate), major reaction rate (MRR, PR+VGPR+CR) at the end of the research.

The purpose of this study is to evaluate the efficiency of an oral regimen in newly diagnosed Waldenström macroglobulinemia: thalidomide plus cyclophosphamide and dexamethasone following by thalidomide and prednisone maintenance therapy.

The purpose of this study is to evaluate whether autologous stem cell transplantation will improve the survival of patients with high-risk Waldenström macroglobulinemia, compared with conventional chemotherapy.

Waldenström's macroglobulinemia is a rare disease whose pathophysiology remains at present poorly understood, although a recurrent mutation (L265P MYD88) has recently been described. Unlike other lymphoproliferative disorders, there is a defect in isotype switching, mechanism involving AID and NHEJ complex. Using a two-dimensional electrophoresis technology, our group showed that MW had a specific proteomic profile, and one of the differentially expressed proteins is Ku70 (encoded by XRCC6 belonging to NHEJ complex) . The investigators purpose to explore the mechanisms of underexpression of Ku70/XRCC6 (genetic or epigenetic modification) in comparison with other lymphoid malignancies and normal B cells.

The purpose of this study is to determine if the type of Fc gamma RIIIa receptor that a particular patient's immune cells possess influences how they respond to rituximab and other monoclonal antibodies.

RATIONALE: Infection prophylaxis and management may help prevent cytomegalovirus (CMV) infection caused by a stem cell transplant. PURPOSE:This clinical trial studies infection prophylaxis and management in treating cytomegalovirus infection in patients with hematologic malignancies previously treated with donor stem cell transplant.

RATIONALE: Collecting and storing samples of blood and bone marrow from patients with cancer to study in the laboratory may help doctors find better ways to ways to treat the cancer. PURPOSE: The purpose of this study is to collect and store blood and bone marrow samples from patients with multiple myeloma, smoldering myeloma, Waldenstrom's macroglobulinemia, amyloidosis, and monoclonal gammopathy of undetermined significance to be tested in the laboratory.

Waldenström Macroglobulinemia (WM) is defined by a bone marrow lymphoplasmacytic infiltration and the presence of a monoclonal immunoglobulin M (IgM) in blood. This chronic lymphoproliferative disorder requires treatment only in case of symptoms, according to accurate criteria described during the second Workshop on WM i.e. in case of cytopenia, bulky organomegaly, immunological or physicochemical consequences of the presence of IgM in circulating blood. A MYD88 mutation, typically a MYD88(L265P), is found in 90% of WM patients. Other gene abnormalities have been observed, the most frequent is a mutation in the CXCR4 gene. Overall, gene mutations in WM involve only a limited number of signalling pathways, yielding the activation of NFkB, namely : the TLR and MYD88 pathway (with an activation of NFkB and BTK in case of MYD88(L265P) mutation), the BCR pathway (involving btk and associated with activations of both NFkB, and erk akt pathway) and the CXCR4 pathway (CXCR4 is a receptor of CXCL12, it is also associated with activations of ERK/MAPK and PI3K). Abnormalities of some of genes, such as TP53, of the expression of the protein CXCL13 and genes involved in the interleukin 6 secretion have been associated with some clinical characteristics. The purpose of this project is to define the prognostic role of the detection of circulating tumoral DNA (ctDNA) at the end of treatment for the progression/relapse risk within the first 3 years after the first 6 months of treatment.