Patients with B-cell NHL that comes back after chemotherapy are typically treated with cisplatin, high-dose cytosine arabinoside and dexamethasone (DHAP) or other platinum-based treatments. Recent studies have shown a 37% response rate in patients with large cell lymphoma to immunotherapy with Rituxan. Patients <75 years old and in otherwise good health may be candidates for high dose therapy with stem cell rescue if they have disease that remains sensitive to chemotherapy. Typically, patients are administered 2 cycles of DHAP or ICE (ifosfamide, carboplatin, and etoposide) and, if the disease responds, they proceed to high-dose therapy with stem cell support. Even patients not considered transplant candidates are also often treated with DHAP or ICE or other salvage regimens. It is likely that the response rate with DHAP alone in patients eligible for transplant is <59%. Recent studies have attempted to improve on the results from DHAP or ICE by combining them with rituxan. NCCTG has just completed a phase II trial of R-DHAP. Preliminary results of the R-ICE protocol indicate a higher response rate and longer time to progression than traditional ICE.