Fig. 1: Flow diagram of participant enrollment, treatment, and analysis.

A total of 69 patients were screened for eligibility in the trial. Twenty patients were excluded according to the inclusion and exclusion criteria. Forty-nine eligible patients were enrolled and administered two cycles of induction chemotherapy plus camrelizumab. Three patients discontinued the study treatment due to failure to receive subsequent chemoradiotherapy as per the study protocol. All 49 enrolled patients were included in the intention-to-treat analysis, while 46 patients who completed the full treatment protocol were included in the per-protocol analysis.