Patients will receive 3 cycles of chemotherapy prior to mid-treatment PET-CT. Rituximab-CHOP, or an equivalent regimen must be used. During the third cycle of Rituximab-CHOP chemotherapy, a PET-CT scan will be performed. The PET scan will be designated as negative or positive. Based on the results, patients will either complete standard dose therapy or receive two cycles of R-ICE followed by high dose cyclophosphamide and rituximab.
A repeat PET-CT is required between 4 to 6 weeks following treatment completion. Patients will be followed-up every 4 months for 2 years, then every 6 months for one year, then annually until 5 years.
