Histologic diagnosis of DLBCL and MYC/BCL-2 expression by IHC were confirmed...Fifty-seven patients responded to therapy, with overall response rate of 95% (57/60), and complete response rate of 80% (48/60). With a median follow-up of 17.8 months, the estimated 1-year PFS rate was 85.3% (95%CI 75.9%-95.2%). And the 1-year EFS rate was 79% (95%CI 68.8%-90.3%)....Our preliminary data indicate promising activity of lenalidomide combined with R-CHOP for newly diagnosed DEL patients.