Rituxan Plus FavId (Idiotype Vaccine) for Low-grade Non-Hodgkin's Lymphoma

Inclusion Criteria 18 years of age or older Patients that are treatment naive OR Relapsed or refractory following chemotherapy OR Relapsed following a prior response to Rituxan(R) Note: Rituxan (R) may have been given as second-line therapy following an initial response to chemotherapy or in combination with chemotherapy for initial therapy of their disease. Tumor accessible for biopsy or previously existing recent biopsy material Measurable disease after node biopsy Histologically confirmed grade 1 or 2 follicular B-cell lymphoma (WHO classification) Performance status (ECOG) of 0, 1 or 2 Absolute Granulocyte count > 1,000/mm3 Platelets > 100,000/mm3 Total Bilirubin <2 mg/dL AST and ALT <2x Upper Limit of Normal Creatinine < 1.5 mg/dL Exclusion Criteria Patients who are refractory to Rituxan(R) Note: Patients who did not attain a CR or PR are considered to be refractory More than 2 prior treatment regimens (e.g. CHOP plus Rituxan(R) is one treatment regimen; CHOP followed by Rituxan(R) at initial relapse equals two treatment regimens) Treatment w/Fludarabine within 9 months of study entry Patients with > 5,000 lymphocytes Prior tumor-specific idiotype immunotherapy using the identical idiotype (patients whose idiotype has changed are eligible for retreatment with new idiotype) Concurrent immunosuppressive therapy (high-dose steroids; ect.) Known history of CNS lymphoma or meningeal lymphomatosis HIV positive Serious non-malignant disease (e.g., psychiatric disorders, compromised pulmonary function (e.g. active asthma, COPD, pneumonitis, bronchiolitis obliterans), congestive heart failure, or active uncontrolled bacterial, viral or fungal infections), or other conditions which, in the opinion of the investigator would compromise protocol objectives Prior malignancy (excluding non-melanoma carcinomas of the skin and in situ cervical carcinomas) unless in remission for >2 years Treatment with an investigational drug within 8 weeks prior to study entry Pregnant or nursing women NOTE: Women of childbearing potential should be advised to avoid becoming pregnant while receiving study treatment.