PMID- 36314250 OWN - NLM STAT- MEDLINE DCOM- 20221220 LR - 20230330 IS - 1097-0045 (Electronic) IS - 0270-4137 (Linking) VI - 83 IP - 2 DP - 2023 Feb TI - Effects of apalutamide dose reduction on skin-related adverse events in patients with advanced prostate cancer: A multicenter retrospective study. PG - 198-203 LID - 10.1002/pros.24453 [doi] AB - BACKGROUND: We aimed to evaluate the effects of apalutamide dose reduction on skin-related adverse events (AEs) and castration-resistant prostate cancer (CRPC)-free survival in patients with advanced prostate cancer (PC). METHODS: We retrospectively evaluated 35 patients with nonmetastatic CRPC and 72 patients with treatment-naive metastatic castration-sensitive PC (mCSPC) who were treated with apalutamide. The primary outcome was the effect of apalutamide dose reduction on skin-related AEs. The secondary outcomes were the effect of apalutamide dose reduction on skin-related AEs in patients with small body size, postskin AE apalutamide discontinuation rate, and CRPC-free survival in patients with mCSPC treated with upfront apalutamide plus androgen deprivation therapy. RESULTS: Of the 107 patients, 65 (60.7%) and 42 (39.3%) were treated with full and reduced doses of apalutamide, respectively. The skin-related AE rate was not significantly different between the groups (55% vs. 43%, p = 0.761). In the group receiving reduced apalutamide dose, the incidence of skin-related AEs was significantly lower in patients with small body sizes (body weight <67 kg and body mass index <24 kg/m(2) ) than in those with other body sizes. The postskin AE apalutamide discontinuation rate was significantly differed between patients receiving the full (50%) and reduced (16.7%) doses. In the 72 patients with mCSPC, CRPC-free survival was not significantly different between the full and reduced dose groups. CONCLUSION: Apalutamide dose reduction was not significantly associated with the incidence of skin-related AEs. However, dose reduction in patients with small body sizes may alleviate skin-related AEs without sacrificing oncological outcomes. CI - (c) 2022 Wiley Periodicals LLC. FAU - Oishi, Takuya AU - Oishi T AD - Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. FAU - Hatakeyama, Shingo AU - Hatakeyama S AUID- ORCID: 0000-0002-0026-4079 AD - Department of Advanced Blood Purification Therapy, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. FAU - Tabata, Ryuji AU - Tabata R AD - Department of Urology, Ageo Central General Hospital, Ageo, Japan. FAU - Fujimori, Daiji AU - Fujimori D AD - Department of Urology, Ageo Central General Hospital, Ageo, Japan. FAU - Kawashima, Yohei AU - Kawashima Y AD - Department of Urology, Ageo Central General Hospital, Ageo, Japan. FAU - Tanaka, Ryuma AU - Tanaka R AD - Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. FAU - Ishii, Noritaka AU - Ishii N AD - Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. FAU - Miura, Hikari AU - Miura H AD - Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. FAU - Tanaka, Toshikazu AU - Tanaka T AD - Department of Urology, Aomori Prefectural Central Hospital, Aomori, Japan. FAU - Okamoto, Teppei AU - Okamoto T AD - Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. FAU - Yamamoto, Hayato AU - Yamamoto H AD - Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. FAU - Yoneyama, Takahiro AU - Yoneyama T AD - Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. FAU - Hashimoto, Yasuhiro AU - Hashimoto Y AD - Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. FAU - Sato, Satoshi AU - Sato S AD - Department of Urology, Ageo Central General Hospital, Ageo, Japan. FAU - Ohyama, Chikara AU - Ohyama C AD - Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. AD - Department of Advanced Blood Purification Therapy, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. AD - Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. LA - eng GR - 19H05556/Japan Society for the Promotion of Science/ GR - 20K09517/Japan Society for the Promotion of Science/ PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20221031 PL - United States TA - Prostate JT - The Prostate JID - 8101368 RN - 0 (apalutamide) RN - 0 (Androgen Receptor Antagonists) RN - 0 (Androgen Antagonists) SB - IM MH - Male MH - Humans MH - Retrospective Studies MH - *Androgen Receptor Antagonists/therapeutic use MH - Androgen Antagonists/therapeutic use MH - *Prostatic Neoplasms, Castration-Resistant/pathology OTO - NOTNLM OT - adverse events OT - castration-resistant OT - castration-sensitive OT - prostate cancer OT - skin EDAT- 2022/11/01 06:00 MHDA- 2022/12/21 06:00 CRDT- 2022/10/31 05:23 PHST- 2022/09/30 00:00 [revised] PHST- 2022/07/22 00:00 [received] PHST- 2022/10/14 00:00 [accepted] PHST- 2022/11/01 06:00 [pubmed] PHST- 2022/12/21 06:00 [medline] PHST- 2022/10/31 05:23 [entrez] AID - 10.1002/pros.24453 [doi] PST - ppublish SO - Prostate. 2023 Feb;83(2):198-203. doi: 10.1002/pros.24453. Epub 2022 Oct 31.