View clinical trials related to Lymphoma, B-Cell, Marginal Zone.
Filter by:The purpose of this study is to determine whether doxycycline is effective in the treatment of relapsed Non Hodgkin Lymphomas (NHL).
This is a treatment guideline for an unrelated umbilical cord blood transplant (UCBT) using a myeloablative preparative regimen for the treatment of hematological diseases, including, but not limited to acute leukemias. The myeloablative preparative regimen will consist of cyclophosphamide (CY), fludarabine (FLU) and fractionated total body irradiation (TBI).
Marginal zone B-cell lymphoma (MZL) is a lymphoma originated from B-cell in lymph node with variable differentiation status, which is distributed to a variety of organs. A high response rate and long term survival is possible through surgery or radiation therapy alone in the case of limited disease. However frequent relapse and progression is observed despite of long term survival. The treatment after relapse has not been established yet. So we investigate the efficacy of radioimmunotherapy using 131I-rituximab in refractory or relapsed patients with MZL.
Background: The development of new technologies now allow scientists to investigate the molecular basis and clinical manifestations of monoclonal B cell lymphocytosis (MBL), chronic lymphocytic leukemia(CLL)/small lymphocytic lymphoma (SLL), lymphoplasmacytic lymphoma (LPL)/Waldenstrom macroglobulinemia (WM), and splenic marginal zone lymphoma (SMZL). Applying these methods in a natural history study can clarify processes involved in disease progression and possibly lead to the discovery or validation of treatment targets. - Objectives: - Study the history of MBL/CLL/SLL/LPL/WM/SMZL in patients prior to and after treatment. - Characterize clinical, biologic and molecular events of disease stability and progression of patients enrolled on this protocol. - Eligibility: - Diagnosis of MBL/CLL/SLL/LPL/WM/SMZL - Age greater than or equal to 18 years. - Patients with CLL/SLL in remission after chemotherapy are excluded. - ECOG performance status of 0-2. - Design: - Patients are typically followed every 6 to 24 months in the clinic and have blood drawn. When required patients may undergo additional testing that may include bone marrow biopsy and aspiration, blood drawing, lymph node biopsy, x-ray studies, positron emission tomography and CT and MRI scans. Some of these tests may be required to monitor CLL/SLL, LPL/WM, and SMZL patients. Other tests, such as bone marrow biopsy and aspiration, lymph node biopsy, may not be clinically indicated, but patients may be asked to undergo these procedures for research purposes. - No treatment will be administered on this study. If a patients requires treatment for their cancer, available NIH clinical trials and alternative treatment options will be discussed with the patient.
The first objective of this study is to confirm the results of complete remission of low-grade gastric MALT lymphoma stage IE & II1E after H. pylori eradication on a larger number of patients (HELYX Part I). If there is no response to the antibiotic therapy, the role of radiotherapy on the course of gastric MALT lymphoma will be investigated as a consecutive therapeutic option for patients that are H. pylori- negative, t(11;18)-positive or failure candidates after eradication therapy. Furthermore, the method of radiation, and the radiation dose will be investigated and standardized. HELYX PART II is therefore a randomized equivalent study comparing the standard dose of 36Gy vs. a reduced dose of 25.2Gy locoregional. Additional molecular genetic analysis will be performed to try to understand pathogenetic mechanisms of lymphomagenesis.