Patients received Bevacizumab, 7.5mg/kg d1, Pemetrexed, 500mg/m2, d1 and Tislelizumab 200mg, d4, Q3W, for 4 cycles; then Tislelizumab 200mg, d1 Q3w and Bevacizumab 7.5mg/kg d1 Q3W, maintenance treatment for 2 years.
This single-center, open-label, phaseⅠstudy is to evaluate the efficacy of Tislelizumab in combination with Bevacizumab and Pemetrexed for the first-line treatment of advanced Non-squamous Non-small Cell lung cancer in Elderly Patients