PT - JOURNAL ARTICLE AU - OKADA, TAKURO AU - MATSUKI, TAKASHI AU - FUSHIMI, CHIHIRO AU - OKAMOTO, ISAKU AU - SATO, HIROKI AU - KONDO, TAKAHITO AU - TOKASHIKI, KUNIHIKO AU - ITO, TATSUYA AU - MASUBUCHI, TATSUO AU - TADA, YUICHIRO AU - MIURA, KOUKI AU - HANYU, KENJI AU - OMURA, GO AU - TAKAHASHI, HIDEKI AU - YAMASHITA, TAKU AU - ORIDATE, NOBUHIKO AU - TSUKAHARA, KIYOAKI TI - Nivolumab for Platinum-refractory and -sensitive Recurrent and Metastatic Head and Neck Squamous Cell Carcinoma AID - 10.21873/anticanres.15996 DP - 2022 Oct 01 TA - Anticancer Research PG - 4907--4912 VI - 42 IP - 10 4099 - http://ar.iiarjournals.org/content/42/10/4907.short 4100 - http://ar.iiarjournals.org/content/42/10/4907.full SO - Anticancer Res2022 Oct 01; 42 AB - Background/Aim: Nivolumab has antitumor efficacy in patients with recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC) who relapse within 6 months after platinum-based therapy; however, the efficacy of nivolumab for platinum-sensitive R/M HNSCC has not been shown. Therefore, this study compared the efficacy and safety of nivolumab for platinum-refractory and platinum-sensitive R/M HNSCC. Patients and Methods: This was a retrospective study of patients who received nivolumab for R/M HNSCC who had been previously treated with platinum-based anticancer drugs. Patients were divided into a platinum-sensitive and a platinum-refractory group, and progression-free survival (PFS), overall survival (OS), the overall response rate (ORR) [complete response (CR) + partial response (PR)], the disease control rate (DCR) (CR + PR + stable disease), and the incidence of immune-related adverse events (irAEs) were compared between the two groups. Results: We included 88 patients with squamous cell carcinoma: 60 with platinum-refractory disease and 28 with platinum-sensitive disease. The median PFS in the platinum-refractory and platinum-sensitive groups were 2.7 months and 5.3 months, respectively (p=0.03), and the median OS were 8.8 months and 17.1 months, respectively (p=0.06). There were no significant differences in the ORR, DCR, or incidence of irAEs between the two groups (p>0.99, p=0.11, and p>0.99, respectively). Conclusion: Nivolumab is a safe and effective treatment for platinum-sensitive R/M HNSCC.