Camrelizumab in Combination With Apatinib in Refractory and Relapsed DLBCL

Patients with relapsed /refractory diffuse large B cell lymphoma usually have a bad prognosis. These patients cannot be treated successfully with the conventional chemotherapy of CHOP. Apatinib is a new type of oral tyrosine kinase inhibitor targeting VEGFR-2. Some studies have shown that the combination of low-dose apatinib and camrelizumab shows a synergistic effect in the exploration of multiple solid tumors, and the adverse reactions of low-dose apatinib are significantly reduced, and the patients are well tolerated.The investigators will evaluate the efficacy and safety of camrelizumab in combination with apatinib in the patients with relapsed refractory diffuse large B cell lymphomafailed from second line chemotherapy.