 - When the campath IV infusion and rituximab IV infusion are complete, the drugs doxorubicin, etoposide, and vincristine will each be given by continuous IV infusion over the next 4 days that is, continuously for a total of 96 hours. Cyclophosphamide will be given by IV infusion over several hours on Day 5. Prednisone will be given by mouth twice each day for 5 days. 