PMID- 32185544 OWN - NLM STAT- MEDLINE DCOM- 20210524 LR - 20210524 IS - 1437-7799 (Electronic) IS - 1342-1751 (Linking) VI - 24 IP - 7 DP - 2020 Jul TI - Early responsiveness to continuous erythropoietin receptor activator predicts renal prognosis and is determined by a novel antioxidative marker in non-dialysis chronic kidney disease: a prospective, observational, single-center study. PG - 590-597 LID - 10.1007/s10157-020-01873-0 [doi] AB - BACKGROUND: Responsiveness to erythropoietin-stimulating agents (ESAs) is important for anemia management in chronic kidney disease (CKD). We assessed the effects of a continuous erythropoietin receptor activator (CERA) on renoprotection beyond anemia management and the correlation between the responsiveness to ESAs and oxidative stress markers in CKD. METHODS: This single-center, prospective, observational study was conducted over 24 months. We administered CERA to 35 non-dialysis patients with hemoglobin (Hb) < 11 g/dL and examined the results of the serum diacron-reactive oxygen metabolite (dROMs) test for oxidative stress markers and biological antioxidant potential (BAP) test for antioxidant markers. We then examined the renoprotective effects of CERA and the responsiveness to CERA. RESULTS: Eighteen patients experienced renal events (doubling of serum creatinine levels, decreased estimated glomerular filtration rate to < 6.0 mL/min/1.73 m(2), or initiation of renal replacement therapy), seventeen of which survived. Kaplan-Meier analysis showed that responsiveness to CERA during the initial 3-month treatment period was a good predictor of renal events. Moreover, a high response to CERA during the 3 months independently suppressed renal events (hazard ratio, 0.344). High BAP levels at baseline were significantly associated with high responsiveness to CERA during the initial 3-month treatment period. CONCLUSION: Responsiveness to CERA during the first 3 months was an important indicator of CKD progression. Moreover, BAP test results determined responsiveness to CERA. This is the first report to show how antioxidant levels can be a potential marker of CERA's ability to control anemia in CKD patients. FAU - Ino, Jun AU - Ino J AD - Department of Nephrology, Toda Central General Hospital, 1-19-3 Hon-cho, Toda city, Saitama, 335-0023, Japan. pikkun46@hotmail.com. FAU - Kasama, Eri AU - Kasama E AD - Department of Nephrology, Toda Central General Hospital, 1-19-3 Hon-cho, Toda city, Saitama, 335-0023, Japan. FAU - Kodama, Mio AU - Kodama M AD - Department of Nephrology, Toda Central General Hospital, 1-19-3 Hon-cho, Toda city, Saitama, 335-0023, Japan. FAU - Harada, Takako AU - Harada T AD - Department of Nephrology, Toda Central General Hospital, 1-19-3 Hon-cho, Toda city, Saitama, 335-0023, Japan. FAU - Sato, Keitaro AU - Sato K AD - Department of Nephrology, Toda Central General Hospital, 1-19-3 Hon-cho, Toda city, Saitama, 335-0023, Japan. FAU - Eizumi, Hitoshi AU - Eizumi H AD - Department of Nephrology, Toda Central General Hospital, 1-19-3 Hon-cho, Toda city, Saitama, 335-0023, Japan. FAU - Kawashima, Youichiro AU - Kawashima Y AD - Department of Nephrology, Toda Central General Hospital, 1-19-3 Hon-cho, Toda city, Saitama, 335-0023, Japan. FAU - Nitta, Kosaku AU - Nitta K AD - Department of Internal Medicine IV, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo, 162-0054, Japan. LA - eng PT - Journal Article PT - Observational Study DEP - 20200317 PL - Japan TA - Clin Exp Nephrol JT - Clinical and experimental nephrology JID - 9709923 RN - 0 (Antioxidants) RN - 0 (Biomarkers) RN - 0 (Hematinics) RN - 0 (Hemoglobins) RN - 0 (Reactive Oxygen Species) RN - 0 (continuous erythropoietin receptor activator) RN - 11096-26-7 (Erythropoietin) RN - 3WJQ0SDW1A (Polyethylene Glycols) RN - AYI8EX34EU (Creatinine) SB - IM MH - Aged MH - Aged, 80 and over MH - Anemia/*drug therapy/etiology MH - Antioxidants/*metabolism MH - Biomarkers/blood MH - Creatinine/blood MH - Disease Progression MH - Erythropoietin/administration & dosage/*therapeutic use MH - Female MH - Glomerular Filtration Rate MH - Hematinics/administration & dosage/*therapeutic use MH - Hemoglobins/metabolism MH - Humans MH - Male MH - Middle Aged MH - Oxidative Stress MH - Polyethylene Glycols/administration & dosage/*therapeutic use MH - Prognosis MH - Prospective Studies MH - Reactive Oxygen Species/*blood MH - Renal Insufficiency/complications/*physiopathology/therapy MH - Treatment Outcome OTO - NOTNLM OT - Chronic kidney disease OT - Continuous erythropoietin receptor activator OT - Oxidative stress OT - Renal anemia EDAT- 2020/03/19 06:00 MHDA- 2021/05/25 06:00 CRDT- 2020/03/19 06:00 PHST- 2019/10/28 00:00 [received] PHST- 2020/03/04 00:00 [accepted] PHST- 2020/03/19 06:00 [pubmed] PHST- 2021/05/25 06:00 [medline] PHST- 2020/03/19 06:00 [entrez] AID - 10.1007/s10157-020-01873-0 [pii] AID - 10.1007/s10157-020-01873-0 [doi] PST - ppublish SO - Clin Exp Nephrol. 2020 Jul;24(7):590-597. doi: 10.1007/s10157-020-01873-0. Epub 2020 Mar 17.