Anaemia is a common complication of chronic kidney disease and is particularly relevant in patients with diabetic nephropathy. Roxadustat is an oral hypoxia-inducible factor prolyl hydroxylase inhibitor used for the treatment of renal anaemia, whereas erythropoietin is an established erythropoiesis-stimulating treatment. Direct comparative evidence between these treatments in patients specifically affected by diabetic nephropathy remains limited.
This study was designed as a randomized controlled trial conducted in the Department of Nephrology, Sheikh Zayed Hospital, Lahore. Eligible patients had diabetes mellitus, chronic kidney disease stage 3a, 3b, 4, or 5, and anaemia. After enrolment, participants were randomly assigned using the lottery method to receive either roxadustat 100 mg orally three times weekly or recombinant erythropoietin 4000 IU subcutaneously twice weekly. Treatment and follow-up continued for three months.
Haemoglobin was measured at baseline and again at the end of the follow-up period. The primary outcome was the change in haemoglobin level from baseline to the end of treatment. Haemoglobin response was defined as an increase in haemoglobin of at least 1.0 g/dL.
