36 to 64 patients with advanced lung cancer who failed pD-1 /L1 inhibitor treatment will be inrolled.~Cohort 1:20 to 33 patients with non-small cell lung cancer (NSCLC) Cohort 2:16 to 31 patients with small cell lung cancer (SCLC)
A non-randomized, open, Simon'soptimal2-stage study to evaluate the efficacy and safety of 6MW3211 in patients with advanced Lung Cancer who had failed therapy with PD-1/L1 Inhibitor.