Patients with Peripheral T-cell lymphoma usually have a bad prognosis. These patients cannot be treated successfully with the conventional chemotherapy of CHOP. The investigators have been proceeding this trial to evaluate the efficacy and safety of the combination chemotherapy regiment GDPT regiment (gemcitabine，cisplatin,Prednisone ,Thalidomide~) in the patients with Peripheral T-cell lymphoma.
The purpose of this study is to evaluate the efficacy and safety of GDPT regiment (gemcitabine，cisplatin,Prednisone ,Thalidomide~) for patients with Peripheral T-cell lymphoma.