Nivolumab Combined With Anlotinib as Re-challenge Treatment in Advanced NSCLC

In combination dose finding phase, Phase 1b will begin with Dose Level 1; anlotinib 12 mg/day orally (from days 1 to 14 in a 21-day cycle) and nivolumab (360mg q3w, intravenously) will be administered to eligible subjects on a 21-day treatment cycle. Two dose de-escalation steps are included: Dose Level 2 (anlotinib 10 mg/day orally, from days 1 to 14 in a 21-day cycle) and nivolumab 360mg q3w, intravenously) and Dose Level 3 (anlotinib 8 mg/day orally, from days 1 to 14 in a 21-day cycle) and nivolumab 360mg q3w, intravenously).If RP2D was reached in Part A, eligible patients would be enrolled and receive nivolumab (360mg q3w, intravenously) plus anlotinib (RP2D, QD from day 1 to 14 of a 21-day cycle) .