Neoadjuvant Programmed Cell Death 1 Blockade Combined with Chemotherapy for Locally Advanced Head and Neck Squamous Cell Carcinoma

Anatomical structures and organ preservation concepts of the head and neck are important for patients with locally advanced head and neck squamous cell carcinoma (LA HNSCC). Neoadjuvant chemotherapy has been applied to improve organ preservation; however, pathological complete remission is still unsatisfactory. The purpose of this study was to explore the pathological complete response (pCR) rate and safety of immune checkpoint blockade combined with neoadjuvant chemotherapy (NAC) in patients with LA HNSCC. Fifty-one patients participated in this retrospective study, and of these, 25 received NAC only (cisplatin+5-fluorouracil+nab-paclitaxel), and 26 received NAC (cisplatin+5-fluorouracil) plus pembrolizumab. Pathological complete remission, the objective response rate (ORR), delayed surgery and toxicity were compared between the two groups. A significant difference was observed in the pCR rate and ORR between the NAC+ICB group and the NAC group. Delaying surgery and Grade 3 or 4 AEs occurred more frequently in the NAC group. In the NAC-only group, during a median follow-up period of 31.80 months, the recurrence-free survival (RFS) rate was 80.0