View clinical trials related to Lymphocytosis.
Filter by:The goal of this study is to develop a vaccination registry system for Aurora Health Care patients newly diagnosed with MM and other B-Cell Hematologic Malignancies in order to prospectively characterize vaccination history and outcomes such as infection in these patients at Aurora Health Care. Additionally hospitalization rates, cost analysis, infection (influenza, pneumonia, other) related to vaccination in this patient population will be evaluated.
This study's goal is to determine the frequency and severity of acute graft versus host disease, to evaluate incidence of primary and secondary graft rejection, to assess event free survival and overall survival, to determine the time to neutrophil and platelet engraftment, to determine the time to immune reconstitution (including normalization of T, B and natural killer (NK) cell repertoire and Immunoglobulin G production), and to establish the incidence of infectious complications including bacterial, viral, fungal and atypical mycobacterial and other infections following CD34+ selection in children, adolescents and young adults receiving an allogeneic peripheral blood stem cell transplant from a family member or unrelated adult donor for a non-malignant disease.
This proposal will test the hypothesis that Orencia affects apoptosis and apoptosis related genes/biomarkers in vivo in rheumatoid arthritis (RA) patients.
Background: - Multiple myeloma (MM), a type of cancer that affects the white blood cells, is often preceded by a precancerous disorder known as monoclonal gammopathy of undetermined significance (MGUS). Farmers and other agricultural workers have a higher risk of developing MGUS and MM, possibly because of their exposure to certain pesticides. Researchers are interested in studying biological specimens taken from participants in the Agricultural Health Study - specifically, pesticide applicators at least 50 years of age who do not have cancer- to better understand the development of MGUS and MM. Objectives: - To collect biological specimens from Agricultural Health Study participants for further research. - To examine the relationship between pesticide exposure and MGUS/MM. Eligibility: - Male pesticide applicators who are over 50 years of age, cancer-free, and participating in the Agricultural Health Study. Design: - Two groups of participants will complete the study: a general group and a smaller group of individuals who have been exposed to the pesticide diazinon. - All participants will receive an initial contact letter with information about the study, followed by a phone call to administer a screening questionnaire and arrange a home visit from a researcher within the next month. - Participants will receive by mail a urine specimen kit that will be collected at the home visit. - During the home visit, a study researcher will take blood samples and collect the urine sample, and will administer another questionnaire. - Participants in the group exposed to diazinon will have three home visits for the study: (1) prior to pesticide exposure, (2) the day after participants stop using diazinon, and (3) about 21 days after the second visit. The first visit will take place in the off-season from January to March; the second and third visits will be conducted between April and August. - No treatment will be provided as part of this study.
Background: - Chronic lymphocytic leukemia (CLL), small lymphocytic lymphoma (SLL), and mantle cell lymphoma (MCL) are types of cancers in which there are too many abnormal lymphocytes (a type of white blood cell). Monoclonal B-cell lymphocytosis (MBL) is a condition in which the individual has a larger than normal number of lymphocytes. Individuals with CLL, SLL, MBL, and MCL may survive for many years without the need for treatment, but there is an apparent correlation between cell birth rates and disease activity. By studying the birth and death rates of lymphocytes, researchers hope to identify individuals who are at risk for worsening disease. - Heavy water is similar in structure to regular water, but it has two deuterium atoms instead of two hydrogen atoms. Deuterium has one more neutron than hydrogen, which is what makes heavy water heavy. Heavy water is not radioactive, looks and tastes like regular water, and has no known harmful effects at research-level doses. When a small amount of heavy water is consumed daily, newly produced blood cells are labeled (tagged), which allows researchers to track cell growth and to measure the birth and death rates of CLL, SLL, MBL, MCL or normal lymphocytes. Objectives: - To study the birth and death rates of lymphocytes from individuals with MBL, CLL/SLL, and MCL, compared with lymphocytes from healthy volunteers. Eligibility: - Individuals at least 18 years of age who have been diagnosed with MBL, CLL, SLL, or MCL, but who have not been taking certain agents (Viagra, Levitra, Cialis, or other PDE-inhibitors, prednisone, cyclosporin-A, rapamycin, or other immunosuppressive agents, more than 2 cups of green tea daily, or Celebrex) for 4 weeks prior to enrollment in the study. - Healthy volunteers at least 18 years of age, but who have not been taking certain agents (Viagra, Levitra, Cialis, or other PDE-inhibitors, prednisone, cyclosporin-A, rapamycin, or other immunosuppressive agents, more than 2 cups of green tea daily, or Celebrex)for 4 weeks prior to enrollment in the study. Design: - Participants will be screened with a medical history, physical examination, and initial blood tests. Other tests may be administered to the individuals with cancer, as required by the study researchers. - All participants will drink regular doses of heavy water daily for a total of 4 weeks (labeling period). There is an optional 6-month follow-up or wash-out period during which no additional heavy water will be consumed. - Blood samples will be collected weekly during the labeling period, and a bone marrow biopsy will be obtained where possible. Individuals with cancer may also have a lymph node biopsy during this part of the study. - Additional blood samples may be collected during the optional wash-out phase of the study to determine the rate at which cancer cells disappear. - Treatment is not provided as part of this protocol.
This phase II trial studies how well lenalidomide and ofatumumab work in treating participants with previously treated chronic lymphocytic leukemia or small lymphocytic lymphoma. Drugs used in chemotherapy, such as lenalidomide, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Monoclonal antibodies, such as ofatumumab, may interfere with the ability of tumor cells to grow and spread. Giving lenalidomide and ofatumumab may work better in treating participants with chronic lymphocytic leukemia or small lymphocytic lymphoma
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.
Blood and lymph node cancers can begin in either the lymphatic tissues (as in the case of lymphoma) or in the bone marrow (as with leukemia and myeloma), and they all are involved with the uncontrolled growth of white blood cells. There are many subtypes of these cancers, e.g., chronic lymphocytic leukemia and non-Hodgkin lymphoma. Since there is evidence that these cancers cluster in families, this study aims to understand how genetics and environmental exposures contribute to the development of these cancers.
T Cell Large Granular Lymphocyte (T-LGL) Lymphoproliferative Disorders are a heterogeneous group of uncommon diseases which may involve a polyclonal or a monoclonal T cell population, which bear characteristic surface markers corresponding to activated cytotoxic (CD3+, CD8+) lymphocytes. They are often associated with quite severe neutropenia, anemia, and thrombocytopenia which may be life-threatening. There is some evidence that the abnormal cytotoxic lymphocyte population may cause the cytopenias by suppressing hematopoiesis, although the mechanism is unclear. Case reports suggest that immunosuppressive therapy directed toward T cells may reverse the cytopenia. This pilot study involving up to 25 patients evaluates the clinical response to cyclosporine, an immunosuppressive drug, and seeks to elucidate the mechanism underlying the cytopenia.