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RATIONALE: Monoclonal antibodies, such as ofatumumab, can block cancer growth in different ways. Some block the ability of cancer cells to grow and spread. Others find cancer cells and help kill them or carry cancer-killing substances to them. 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 or by stopping them from dividing. Giving ofatumumab together with pentostatin and cyclophosphamide may be a better way to block cancer growth.
PURPOSE: This phase II trial is studying how well giving ofatumumab together with pentostatin and cyclophosphamide works in treating patients with untreated chronic lymphocytic leukemia or small lymphocytic lymphoma.
I. To assess the rate of complete and overall response using pentostatin, cyclophosphamide, and ofatumumab in patients with previously untreated CLL or SLL requiring therapy and to determine the proportion of patients who achieve a minimal residual disease (MRD) negative state as assessed by flow cytometry.
I. To monitor and assess toxicity of pentostatin, cyclophosphamide, and ofatumumab in patients with previously untreated CLL or SLL.
II. To determine the progression-free survival in CLL patients treated with pentostatin, cyclophosphamide, and ofatumumab.
III. To assess the complete and overall response as well as progression-free survival of CLL patients treated with pentostatin, cyclophosphamide, and ofatumumab as compared to a historic control of patients treated with pentostatin, cyclophosphamide, and rituximab in an exploratory manner.
IV. To determine if molecular prognostic parameters (ZAP-70, CD38, cytogenetic abnormalities identified by FISH, IgVH mutation status, etc) relate to response to PCO therapy.
V. Assess the mechanisms of ofatumumab induced cell death and explore methods to enhance ofatumumab cytotoxicity.
OUTLINE: Patients receive ofatumumab IV on days 1-2 of course 1 and on day 1 of courses 2-6. Patients also receive pentostatin IV over 30 minutes on day 1, cyclophosphamide IV over 30 minutes on day 1, and pegfilgrastim subcutaneously on day 2. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed periodically.
Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
pentostatin, cyclophosphamide, ofatumumab, laboratory biomarker analysis, flow cytometry, protein expression analysis
Mayo Clinic Scottsdale-Phoenix
Published on BioPortfolio: 2014-08-27T03:17:37-0400
RATIONALE: Monoclonal antibodies, such as rituximab, can block cancer growth in different ways. Some block the ability of cancer cells to grow and spread. Others find cancer cells and help...
RATIONALE: Drugs used in chemotherapy, such as pentostatin, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Monocl...
Ofatumumab in Combination With Cyclophosphamide, Doxorubicin Hydrochloride, Vincristine Sulfate, and Dexamethasone Alternating With Ofatumumab in Combination With Cytarabine and Methotrexate in Treating Patients With Newly Diagnosed Mantle Cell Lymphoma
This phase II trial studies how well ofatumumab in combination with cyclophosphamide, doxorubicin hydrochloride, vincristine sulfate, and dexamethasone alternating with ofatumumab in combi...
RATIONALE: Treating lymphocytes in the laboratory may help the lymphocytes kill more tumor cells when they are put back in the body. Aldesleukin may stimulate the lymphocytes to kill tumor...
RATIONALE: Drugs used in chemotherapy, such as fludarabine and cyclophosphamide, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them ...
Mass cytometry can differentiate more channels than conventional flow cytometry. However, for clinical use, standardization and agreement with well-established methods is paramount. We compared mass c...
Flow cytometry essentially focuses on surface-expressed proteins, with few protocols being devoted to intracellular components. We evaluated a two-step procedure using new formaldehyde-free permeabili...
Flow cytometry has become an important tool in the life sciences and medical fields, yet there are often few opportunities for undergraduate students to receive training with this type of instrumentat...
Mass cytometry is a variation of conventional flow cytometry using metal tagged antibodies for cell staining instead of fluorochromes and detection in a mass cytometer, a modified mass spectrometer th...
A technique encompassing morphometry, densitometry, neural networks, and expert systems that has numerous clinical and research applications and is particularly useful in anatomic pathology for the study of malignant lesions. The most common current application of image cytometry is for DNA analysis, followed by quantitation of immunohistochemical staining.
The analysis of a chemical substance by inserting a sample into a carrier stream of reagent using a sample injection valve that propels the sample downstream where mixing occurs in a coiled tube, then passes into a flow-through detector and a recorder or other data handling device.
Precursor of an alkylating nitrogen mustard antineoplastic and immunosuppressive agent that must be activated in the LIVER to form the active aldophosphamide. It has been used in the treatment of LYMPHOMA and LEUKEMIA. Its side effect, ALOPECIA, has been used for defleecing sheep. Cyclophosphamide may also cause sterility, birth defects, mutations, and cancer.
Process of classifying cells of the immune system based on structural and functional differences. The process is commonly used to analyze and sort T-lymphocytes into subsets based on CD antigens by the technique of flow cytometry.
A group of cells identified on FLOW CYTOMETRY profiles as distinct from the main group of cells by their ability to extrude the fluorescent dye Hoechst 33342, often a characteristic property of less differentiated progenitor and STEM CELLS.
Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for the organ or type of cell in which they start - for example, cancer that begins in the colon is called colon cancer; cancer th...
Head and neck cancers
Cancer can occur in any of the tissues or organs in the head and neck. There are over 30 different places that cancer can develop in the head and neck area. Mouth cancers (oral cancers) - Mouth cancer can develop on the lip, the tongue, the floor...
Bladder Cancer Brain Cancer Breast Cancer Cancer Cervical Cancer Colorectal Head & Neck Cancers Hodgkin Lymphoma Leukemia Lung Cancer Melanoma Myeloma Ovarian Cancer Pancreatic Cancer ...