Protocol Number: 01-C-0030
Patients with non-Hodgkin's lymphoma and HIV infection age 13 years and older who are not pregnant or nursing and who have not been treated previously with rituximab may be eligible for this study. Candidates will be screened with a medical history and physical examination, blood and urine tests, and an electrocardiogram. Bone marrow aspiration and biopsy, lumbar puncture (spinal tap), and imaging tests such as magnetic resonance imaging (MRI), computed tomography (CT), positron emission tomography (PET) and X-rays will also be done to determine the location and extent of the lymphoma. Participants will receive chemotherapy on an outpatient basis for a period of 6 to 18 weeks in 3-week cycles as follows: prednisone by mouth on days 1 through 5; etoposide, doxorubicin and vincristine intravenously (through a vein) on days 1 through 5; and cyclophosphamide by intravenous injection on day 5. In addition, an antibody called rituximab, which attaches to lymphoma cells and may increase the effectiveness of the chemotherapy, will be given twice during each treatment cycle on days 1 and 5. Starting day 6, patients receive no chemotherapy for 16 days. They will, however, receive a drug called G-CSF for about 2 weeks, beginning day 6 of the cycle. G-CSF is a protein naturally produced by bone marrow that may boost immune function. The chemotherapy and rituximab are infused through a vein by means of a lightweight portable pump. Patients are taught how to use this pump, as well as how to give themselves G-CSF injections under the skin. Patients will receive additional chemotherapy (methotrexate, leucovorin, cytosine arabinoside and rituximab) via lumbar puncture or an Ommaya-a device that is surgically placed in the head. This is necessary in order to treat lymphoma in the brain and spinal fluid-areas that intravenous drugs cannot reach. For the lumbar puncture, a small needle is inserted through the skin and muscle in the lower back, going between the bones of the spine until the needle punctures the spinal canal covering. If lumbar puncture is not feasible, an Ommaya may be used. If evidence of lymphoma disappears quickly, treatment will be stopped after 2 or 3 cycles. In any case, patients will receive a maximum of 6 cycles. They will be followed periodically for 2 years with various tests, such as blood tests and imaging scans, to monitor disease progress.
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