Bortezomib and Vorinostat in Treating Patients With Recurrent Mantle Cell Lymphoma or Recurrent and/or Refractory Diffuse Large B-Cell Lymphoma

This was a multicenter, non-randomized phase 2 trial using a Simon two-stage design with 3 cohorts. PRIMARY OBJECTIVES: I. Estimate the response rates of mantle cell and diffuse large B-cell lymphomas to bortezomib and vorinostat combination therapy. SECONDARY OBJECTIVES: I. Assess the safety and tolerability of the study regimen. II. Observe progression-free survival and response durations. III. Observe the relationship between pretreatment lymphoma cell nuclear v-rel reticuloendotheliosis viral oncogene homolog A (relA) and response. OUTLINE: Patients receive vorinostat orally (PO) once daily (QD) on days 1-5 and 8-12. Patients also receive bortezomib intravenously (IV) over 3-5 seconds on days 1, 4, 8, and 11. Courses repeat every 3 weeks in the absence of disease progression or unacceptable toxicity.