RT Journal Article SR Electronic T1 Efficacy of Nivolumab and Pembrolizumab in Platinum-sensitive Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 3679 OP 3683 DO 10.21873/anticanres.16550 VO 43 IS 8 A1 YAMASHITA, GAI A1 OKAMOTO, ISAKU A1 ITO, TATSUYA A1 TOKASHIKI, KUNIHIKO A1 OKADA, TAKURO A1 TSUKAHARA, KIYOAKI YR 2023 UL http://ar.iiarjournals.org/content/43/8/3679.abstract AB Background/Aim: This study evaluated the efficacy of nivolumab and pembrolizumab in treating platinum-sensitive recurrent or metastatic head and neck squamous cell carcinomas (R/M-HNSCC). Patients and Methods: Platinum-sensitive patients with R/M-HNSCC were selected at Tokyo Medical University Hospital from May 1, 2017, to June 30, 2022. Patients with a history of treatment with nivolumab or pembrolizumab were included. Nivolumab was used in 21 cases and pembrolizumab in 15 cases. Results: The median overall survival (OS) was 16.9 months in the nivolumab group and 19.2 months in the pembrolizumab group and no significant differences were observed between the two groups. The median progression-free survival (PFS) was 4.8 months in the nivolumab group and 9.3 months in the pembrolizumab group. No significant differences were observed between the two groups. The objective response rates (ORR) were 38% and 47% in the nivolumab and pembrolizumab groups, respectively. Conclusion: Nivolumab as well as pembrolizumab were found to be effective in platinum-sensitive patients with R/M-HNSCC. Nivolumab can be considered a potential treatment option for platinum-sensitive R/M-HNSCC in the future.