Y Zevalin and BEAM in Autologous Stem Cell Transplantation (ASCT) for Lymphoma

BEAM chemotherapy is the standard treatment for lymphoma. BEAM is a combination of chemotherapy drugs (carmustine, cytarabine, etoposide, and melphalan). Rituximab is an antibody made from human and mouse proteins. It reacts with a certain molecule on the surface of lymphoma cells and helps the body's immune system destroy the lymphoma cells. 90Y Zevalin is also an antibody made from mouse proteins. However, it has a particle of radiation attached to it. 90Y Zevalin works by attaching to lymphoma cells, and the radiation particle destroys the lymphoma cell. For this study, you will receive rituximab by vein followed by a dose of 111In Zevalin by vein (over 15 minutes). 111In Zevalin is different from the study drug (90Y Zevalin). 111In Zevalin has a different type of radioactive particle attached to it. This particle does not kill lymphoma cells, but it can be "seen" inside the body using a special camera (like an x-ray). 111In Zevalin is being used to predict how fast the study drug will travel in the body and how long the drug stays in the body. Doctors need to be able to see how much of the drug goes to the tumor and how much goes to normal organs to determine if it is safe to give 90Y Zevalin on an outpatient basis. A scan will be done as soon as 111In Zevalin is given and about 2-24 hours later. Scans will also be done 2-3 days later. If the radiation in the 111In Zevalin is not a threat to normal organs and bone marrow, you may receive 90Y Zevalin. Seven (7) days after the 111In Zevalin injection, you will receive a second dose of rituximab followed by a dose of 90Y Zevalin by vein (over 15 minutes). Seven (7) days after the 90Y Zevalin injection, you will receive the BEAM combination of chemotherapy. You will receive carmustine (over 2 hours) on Day 1 of chemotherapy. You will receive cytarabine (over 2 hours) followed by etoposide (over 4 hours) twice a day on Days 2 through 5. On Day 6, you will receive melphalan (over 20 minutes). A catheter (small flexible tube) will be placed in a large vein in your chest so that the chemotherapy drugs can be given to you more easily. This is called a central venous catheter. All of the chemotherapy drugs will be given through the central venous catheter. One day after finishing the chemotherapy, the stem cells that were collected earlier will be given back to you by vein over about 30 minutes. Starting on the same day, you will receive treatments with G-CSF by injection under the skin once a day. Treatment with G-CSF will continue until your blood counts reach a certain level. You will receive rituximab by vein (over 6 to 8 hours) on the day after the transplant and again 1-week later. Blood tests (about 1-2 tablespoons), urine tests, bone marrow collections, and x-rays will be done as needed to track the effects of the transplant. You will have transfusions of blood and platelets as needed. Blood tests (about 1 tablespoon) will be done once a day while you are in the hospital. Blood tests (about 1-2 tablespoons), urine tests, bone marrow collections, x-rays, CT scans, and PET scans will be done every 3 months for 1 year and then every 6 months for 5 years to check on the status of the disease. You will be asked to give some extra blood samples (around 1 tablespoon each) at study entry and upon return visits to M. D. Anderson. These samples will be used to test for certain molecules in the blood (HAMA and soluble CD20) and to check on the level of rituximab in the blood. Treatment will be given in the hospital at the University of Texas (UT) MD Anderson. You will need to stay in the hospital for about 3 to 4 weeks. You should stay in the Houston area for about 2 to 4 weeks after the transplant. After that, you will need to return to Houston from time to time for blood tests, urine tests, and other exams. This is an investigational study. This is an investigational study. 90Y-Zevalin is approved by the FDA for relapsed and refractory lymphoma. Its use in this trial, however, is investigational. All other drugs used in this study are FDA approved and are commercially available. Up to 60 participants will take part in this study. All will be enrolled at MD Anderson.