Patients must have a known diagnosis of multiple myeloma with evidence of measurable disease, as defined below: Confirmed diagnosis of active multiple myeloma and measurable disease. Has a confirmed diagnosis of active multiple myeloma and measurable disease Has a confirmed diagnosis of active multiple myeloma and measurable disease. Documented measurable disease for multiple myeloma at screening as defined in protocol Must have documented multiple myeloma and measurable disease Confirmed multiple myeloma with measurable disease. Subjects must have documented diagnosis of multiple myeloma and have measurable disease