PRIMARY OBJECTIVES:
l. To test the hypothesis that killer immunoglobulin-like receptor (KIR) and human leukocyte antigen (HLA) genotypes predict overall response (partial response \[PR\], complete response\[CR\], and unconfirmed complete response \[CRu\]) within 12 months to rituximab-containing monoclonal antibody combinations in follicular lymphoma patients treated on CALGB protocols 50402 and 50701.
SECONDARY OBJECTIVES:
I. To test the hypothesis that KIR and HLA genotypes are associated with survival outcomes (progression-free survival \[PFS\] and overall survival \[OS\]) in follicular lymphoma patients treated with rituximab-containing monoclonal antibody combinations on CALGB protocols 50402 and 50701.
OUTLINE:
Genomic DNA is extracted from previously collected blood samples for KIR and HLA genotyping and polymorphism analysis.
