Diffuse large B cell lymphoma (DLBCL) is the most common type of non-Hodgkin's lymphoma (NHL). Currently, R-CHOP is world-widely used in the first-line treatment for DLBCL. There are about one second of patients suffering relapse and drug resistance. Lenalidomide is an analog of thalidomide, the mechanism of anti-tumor action has not been fully elucidated. Lenalidomide has been proved to inhibit the proliferation of tumor cells in certain hematopoietic systems. At present, it has been approved for the treatment of multiple myeloma with good efficacy and safety. The goal of our trial is to assess the efficacy and safety of R-CHOP combined with lenalidomide in the first-line treatment for patients with medium to high risk/high risk diffuse large B cell lymphoma.
