Obinutuzumab, High Dose Methylprednisolone (HDMP), and Lenalidomide for the Treatment of Patients With Richter's Syndrome

This is a phase I trial to determine the safety and tolerability of the combination of obinutuzumab, lenalidomide, and HDMP for patients with RS. There is not a standard of care for patients with Richter's Syndrome (RS). Ten patients will be enrolled with RS diagnosed by histology or flow cytometry and CLL, regardless of prior treatment for either condition.