NPC

The goal of this clinical trial is to evaluate efficacy and safety of neoadjuvant of the anti PD1 agent Pembrolizumab combined with MRG003 and adjuvant treatment of Pembrolizumab in patients with Epstein-Barr virus (EBV) - associated locoregionally advanced nasopharyngeal carcinoma. The expected sample size is 35 patients. Participants will receive 3 cycles of neoadjuvant pembrolizumab 200mg Q3W plus MRG003 2.3mg/kg Q3W followed by the standard concurrent chemoradiotherapy. Then participants will receive 14 cycles of adjuvant Pembrolizumab 200 mg Q3W after the standard concurrent chemoradiotherapy. The estimated average length of treatment per patients is 1 year.

Phase II: To evaluate the safety and tolerability of IAE0972 combined with chemotherapy selected by doctors for R/M HNSCC/NPC after failure or progress of ≤2-line system therapy, and to determine the MTD of combined therapy. Phase III: According to the RECIST 1.1, the effectiveness of IAE0972 combined with chemotherapy regimen chosen by doctors compared with placebo plus chemotherapy regimen chosen by doctors was evaluated through OS in patients with R/M NPC who failed or progressed after treatment with ≤2-line system.

The purpose of this study is to compare cisplatin-based with carboplatin-based chemoradiotherapy in patients with locoregionally advanced nasopharyngeal carcinoma (NPC), in order to confirm the value of carboplatin-based chemoradiotherapy in NPC patients.