Efficacy and Safety of Lenalidomide Plus CHOP vs CHOP in Patients With Untreated Peripheral T-Cell Lymphoma

This is a randomized, multi-center, open-label study to compare efficacy and safety of L-CHOP with standard CHOP regimen in patients with previously untreated PTCL. Study subjects are patients with histologically proven PTCL. Patients are randomized 1:1 to receive either cyclophosphamide, doxorubicin, vincristine and prednisone (CHOP) administered in 3 week cycles for 6 cycles or Lenalidomide plus CHOP (L-CHOP) administered in 3 week cycles for 6 cycles. In the L-CHOP arm, Lenalidomide will be administered at a dose of 25mg po on day 1-10 every 3 weeks. This study is divided into three phases: screening phase, treatment phase and follow-up phase. Patients will receive study drug(s) for up to 6 cycles, or until unacceptable toxicity will develop or progression or voluntary with drawl. Adverse event of every treatment cycle will be recorded. Therapy efficacy will be evaluated after finishing 3 cycles and finishing 6 cycles therapy. Patients will be followed until disease progression, died or 3 years from the last patient randomized.