Multicenter, Open, Prospective, 48 Weeks, Observational Study ,Evaluate the Safety and Efficacy of Nephoxil Capsule

The purpose of this study is to evaluate the safety and efficacy of Nephoxil capsule administration for the improvement of hyperphosphatemia in CKD patients undergoing hemodialysis under actual conditions of routine medical care.

Inclusion Criteria: 1. Adults 19 years of age or older as of the ICF date 2. CKD patients undergoing hemodialysis to whom Nephoxil capsule shall be administered for the first time for the treatment of hyperphosphatemia as per the determination of the investigator 3. Patients who voluntarily decide to participate in this study and complete the ICF Exclusion Criteria: 1. Those who fall under the "Do not administer to the following patients" criteria according to Nephoxil capsule indication approval 2. Those who require concomitant administration of aluminum-containing medication 3. Others determined by the investigator to be unsuitable for participation in this study