Bortezomib, Lenalidomide, and Dexamethasone in Treating Patients With Multiple Myeloma Undergoing Stem Cell Transplant

CONSOLIDATION: Patients receive bortezomib, lenalidomide, and dexamethasone (VLD) therapy comprising bortezomib intravenously (IV) on days 1, 4, 8, and 11, lenalidomide orally (PO) once daily (QD) on days 1-14, and dexamethasone PO or IV on days 1, 2, 4, 5, 8, 9, 11, and 12. Courses continue for 28 days and repeat every 3 months in the absence of disease progression or unacceptable toxicity. In between courses of VLD, patients receive Lenalidomide + Dexamethasone (LD) therapy comprising lenalidomide PO QD on days 1-21 and dexamethasone PO QD or IV every Monday (x3). Courses continue for 28 days. MAINTENANCE: Starting in the third year of therapy, patients receive lenalidomide PO QD on days 1-14 and dexamethasone PO QD or IV every Monday (x2). Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity.