Objective To assess the influence of Roxadustat on blood pressure in peritoneal dialysis
(PD) patients through a retrospective, self-controlled cohort study.
(PD) patients through a retrospective, self-controlled cohort study. Methods PD Patients who were treated with Roxadustat for at least 4 months, and were treated with rHuEPO for at least 1 year before the application of Roxadustat were enrolled in this study. Baseline clinical data and the clinical data of each month after the application of Roxadustat were collected for a total of 4 months. Clinical data of patients during the same period of 1 year ago when patients were treated with rHuEPO were also collected. Compare the differences between baseline and after taking Roxadustat, and the difference between Roxadustat phase and rHuEPO phase.

Results A total of 38 PD patients were enrolled in the study. Systolic blood pressure (SBP) at baseline was 144.6±18.5 mmHg, after taking Roxadustat for 1 month, 2 months, 3 months and 4 months, SBP was 139.2±17.5 mmHg, 134.3±15.9 mmHg, 137.4±16.9 mmHg and 137.2±14.5 mmHg respectively. SBP decreased after taking Roxadustat compared with baseline (1 month：t was 2.285, P was 0.028；2 month: t was 3.408, P was 0.002；3 month t was 2.223，3 month P was 0.032；4 month t was 2.521，P was 0.030 respectively). There were no significant differences in defined daily dose of anti- hypertensive drugs after Roxadustat treatment compared with baseline. Conclusion After switching rHuEPO to Roxadustat, hypertension caused by rHuEPO can be avoided after excluding factors that may affect blood pressure in PD patients, such as season, volume, and dose of antihypertensive drugs.