PMID- 38423657 OWN - NLM STAT- MEDLINE DCOM- 20240304 LR - 20240304 IS - 1791-7530 (Electronic) IS - 0250-7005 (Linking) VI - 44 IP - 3 DP - 2024 Mar TI - Comparison of Oncological Outcomes of Pembrolizumab as Second-line Therapy and Maintenance Avelumab Therapy in Advanced Urothelial Carcinoma After Platinum-based Chemotherapy. PG - 1271-1279 LID - 10.21873/anticanres.16922 [doi] AB - BACKGROUND/AIM: Sequential therapy using chemotherapy and subsequent immune checkpoint inhibitor (ICI) treatment prolongs the survival of patients with advanced urothelial carcinoma (UC). However, no comparison data for oncological outcome between pembrolizumab and avelumab has been reported. Thus, we compared oncological outcomes between pembrolizumab as second-line therapy and maintenance avelumab therapy in patients with advanced UC. PATIENTS AND METHODS: We retrospectively evaluated patients with advanced UC treated with pembrolizumab or avelumab between January 2018 and February 2023. We compared oncological outcomes after adjusting for patient characteristics. Immune-related adverse events (AEs) in each group were evaluated using the Common Terminology Criteria for Adverse Events. RESULTS: There were 186 and 44 patients in the pembrolizumab- and avelumab-treated cohorts, respectively. After propensity score matching, 43 patients from each group were selected and analyzed. Median progression-free survival from the initiation of pembrolizumab and avelumab treatments was 126 and 139 days, respectively (log-rank test, p=0.625). Median overall survival in the pembrolizumab and avelumab cohorts were 658 days and not reached, respectively (log-rank test, p=0.249). Thirty-eight (20.4%) and 14 (31.8%) all-grade immune-related AEs were observed in 186 pembrolizumab- and 44 avelumab-treated patients, respectively (chi-squared test, p=0.112). Regarding endocrine-related AEs, 12 (6.5%) and none (0%) were observed in pembrolizumab- and avelumab-treated patients, respectively (Fisher's exact probability test, p=0.129). CONCLUSION: Pembrolizumab and maintenance avelumab therapy provide equivalent oncological outcomes in patients with advanced UC. Although no significant difference was observed, there might be a potential risk of higher endocrine-related AEs due to pembrolizumab compared to avelumab maintenance therapy. CI - Copyright (c) 2024 International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved. FAU - Shindo, Tetsuya AU - Shindo T AD - Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan; shindo1013@yahoo.co.jp. FAU - Hashimoto, Kohei AU - Hashimoto K AD - Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Takahashi, Atsushi AU - Takahashi A AD - Department of Urology, Hakodate Goryoukaku Hospital, Hakodate, Japan. FAU - Miyamoto, Shintaro AU - Miyamoto S AD - Department of Urology, Japanese Red Cross Asahikawa Hospital, Asahikawa, Japan. FAU - Kunishima, Yasuharu AU - Kunishima Y AD - Department of Urology, Sunagawa City Medical Center, Sunagawa, Japan. FAU - Sato, Shunsuke AU - Sato S AD - Department of Urology, Oji General Hospital, Tomakomai, Japan. FAU - Fukuta, Fumimasa AU - Fukuta F AD - Department of Urology, Steel Memorial Muroran Hospital, Muroran, Japan. FAU - Hiyama, Yoshiki AU - Hiyama Y AD - Department of Urology, NTT Medical Center Sapporo, Sapporo, Japan. FAU - Takayanagi, Akio AU - Takayanagi A AD - Department of Urology, Japan Community Healthcare Organization Hokkaido Hospital, Sapporo, Japan. FAU - Kato, Ryuichi AU - Kato R AD - Department of Urology, Muroran City General Hospital, Muroran, Japan. FAU - Wanifuchi, Atsushi AU - Wanifuchi A AD - Department of Urology, Japanese Red Cross Kushiro Hospital, Kushiro, Japan. FAU - Ueki, Yohei AU - Ueki Y AD - Department of Urology, Takikawa Municipal Hospital, Takikawa, Japan. FAU - Okada, Manabu AU - Okada M AD - Department of Urology, Obihiro Kyokai Hospital, Obihiro, Japan. FAU - Adachi, Hideki AU - Adachi H AD - Department of Urology, Saiseikai Otaru Hospital, Otaru, Japan. FAU - Kobayashi, K O AU - Kobayashi KO AD - Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Tanaka, Toshiaki AU - Tanaka T AD - Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Masumori, Naoya AU - Masumori N CN - Sapporo Medical University Urologic Oncology Consortium LA - eng PT - Journal Article PL - Greece TA - Anticancer Res JT - Anticancer research JID - 8102988 RN - DPT0O3T46P (pembrolizumab) RN - KXG2PJ551I (avelumab) RN - 49DFR088MY (Platinum) RN - 0 (Antineoplastic Agents, Immunological) RN - 0 (Antibodies, Monoclonal, Humanized) SB - IM MH - Humans MH - *Carcinoma, Transitional Cell/drug therapy MH - *Urinary Bladder Neoplasms/drug therapy/pathology MH - Platinum/therapeutic use MH - Retrospective Studies MH - *Urologic Neoplasms/pathology MH - *Antineoplastic Agents, Immunological/therapeutic use MH - *Antibodies, Monoclonal, Humanized OTO - NOTNLM OT - Advanced urothelial carcinoma OT - avelumab OT - pembrolizumab OT - propensity score match EDAT- 2024/03/01 01:22 MHDA- 2024/03/04 06:44 CRDT- 2024/02/29 20:53 PHST- 2023/11/15 00:00 [received] PHST- 2023/12/03 00:00 [revised] PHST- 2023/12/04 00:00 [accepted] PHST- 2024/03/04 06:44 [medline] PHST- 2024/03/01 01:22 [pubmed] PHST- 2024/02/29 20:53 [entrez] AID - 44/3/1271 [pii] AID - 10.21873/anticanres.16922 [doi] PST - ppublish SO - Anticancer Res. 2024 Mar;44(3):1271-1279. doi: 10.21873/anticanres.16922.