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Daprodustat for anemia: a 24-week, open-label, randomized controlled trial in participants with chronic kidney disease.
Clinical Kidney Journal 2019 Februrary
Background: This study assessed the short-term safety and efficacy of daprodustat (an oral hypoxia-inducible factor-prolyl hydroxylase inhibitor) to achieve a target hemoglobin in patients with anemia of chronic kidney disease (CKD).
Methods: Patients ( n = 252) with Stages 3-5 CKD not receiving dialysis were enrolled in this 24-week, multicenter trial [hemoglobin entry criteria: 8-10 g/dL (Cohort 1) or 8-11 g/dL (Cohort 2) for recombinant human erythropoietin (rhEPO)-naïve participants; 9-10.5 g/dL (Cohort 1) or 9-11.5 g/dL (Cohort 2) for rhEPO users]. rhEPO-naïve participants were randomized 3:1 to daprodustat (1, 2 or 4 mg) or control (rhEPO per standard of care). rhEPO users were randomized 1:1 to daprodustat 2 mg or control. Study medication was titrated to maintain hemoglobin 9-10.5 g/dL (Cohort 1) or 10-11.5 g/dL (Cohort 2). Hemoglobin, iron metabolism markers and safety parameters were measured every 4 weeks.
Results: Mean hemoglobin levels at Week 24 were 10.2 g/dL (Cohort 1) and 10.9 g/dL (Cohort 2) in the daprodustat group and 10.7 g/dL (Cohort 1) and 11.0 g/dL (Cohort 2) in the control group. Participants had hemoglobin levels within the target range a median of 82% and 66% of the time between Weeks 12 and 24 in the daprodustat and control groups, respectively. The adverse event profile was consistent with clinical events in the CKD population.
Conclusions: Daprodustat effectively maintained target hemoglobin over 24 weeks in CKD patients with anemia who were rhEPO naïve or had switched from existing rhEPO therapy.
Methods: Patients ( n = 252) with Stages 3-5 CKD not receiving dialysis were enrolled in this 24-week, multicenter trial [hemoglobin entry criteria: 8-10 g/dL (Cohort 1) or 8-11 g/dL (Cohort 2) for recombinant human erythropoietin (rhEPO)-naïve participants; 9-10.5 g/dL (Cohort 1) or 9-11.5 g/dL (Cohort 2) for rhEPO users]. rhEPO-naïve participants were randomized 3:1 to daprodustat (1, 2 or 4 mg) or control (rhEPO per standard of care). rhEPO users were randomized 1:1 to daprodustat 2 mg or control. Study medication was titrated to maintain hemoglobin 9-10.5 g/dL (Cohort 1) or 10-11.5 g/dL (Cohort 2). Hemoglobin, iron metabolism markers and safety parameters were measured every 4 weeks.
Results: Mean hemoglobin levels at Week 24 were 10.2 g/dL (Cohort 1) and 10.9 g/dL (Cohort 2) in the daprodustat group and 10.7 g/dL (Cohort 1) and 11.0 g/dL (Cohort 2) in the control group. Participants had hemoglobin levels within the target range a median of 82% and 66% of the time between Weeks 12 and 24 in the daprodustat and control groups, respectively. The adverse event profile was consistent with clinical events in the CKD population.
Conclusions: Daprodustat effectively maintained target hemoglobin over 24 weeks in CKD patients with anemia who were rhEPO naïve or had switched from existing rhEPO therapy.
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