Inclusion Criteria:  Chronic kidney disease grade 5 (defined as estimated glomerular filtration rate < 15 ml/dL/1.73m2 at least 2 times at intervals of 2 weeks or longer) Age between 19 and 80 years The nephrologists anticipate treating the patient with kidney replacement therapy within 12 months Written informed consent  Exclusion Criteria:  History of acute kidney injury within 4 weeks Patients who are likely to receive emergency dialysis within 3 months Active hematologic malignancy or solid cancer undergoing treatment Active infection Contraindication to perform peritoneal dialysis due to abdominal surgery Life expectancy is less than 6 months due to underlying diseases Patients who have enrolled in other clinical trials within 3 months or plan to participate in other clinical trials during this clinical trial period Patients judged by the investigator to be inappropriate for participation in this clinical trial.