Phase 2, Randomized, Double-Blind, Placebo Controlled, Dose-Finding Study to Assess the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Vadadustat in Japanese Subjects With Anemia Secondary to Non-Dialysis Dependent Chronic Kidney Disease (NDD-CKD)
Overview
- Phase
- Phase 2
- Intervention
- Vadadustat
- Conditions
- Anemia
- Sponsor
- Akebia Therapeutics
- Enrollment
- 51
- Primary Endpoint
- Mean Change in Hemoglobin (Hb) Levels From Pre-treatment to the End of the Primary Efficacy Period
- Status
- Completed
- Last Updated
- 5 years ago
Overview
Brief Summary
This is a Phase 2, randomized, double-blind, placebo-controlled, dose-finding study to assess the efficacy, safety, tolerability, pharmacokinetic (PK), and pharmacodynamic (PD) of orally administered vadadustat in Japanese participants with anemia secondary to Non-dialysis Dependent Chronic Kidney Disease (NDD-CKD).
Investigators
Eligibility Criteria
Inclusion Criteria
- •Male and female Japanese participants ≥20 years of age
- •Diagnosis of chronic kidney disease (CKD) based on an estimated glomerular filtration rate ≤60 milliliters per minute per 1.73 meters squared (mL/min/1.73 m\^2)
- •Hemoglobin (Hb) ≤10.5 grams per deciliter (g/dL)
- •Not currently being treated with dialysis and not expected to start dialysis within 3 months of screening
Exclusion Criteria
- •Anemia due to a cause other than CKD or presence of active bleeding or recent blood loss
- •Sickle cell disease, myelodysplastic syndromes, bone marrow fibrosis, hematologic malignancy, myeloma, hemolytic anemia, thalassemia, or pure red cell aplasia
- •Red blood cell transfusion within 4 weeks prior to or during screening
- •Intravenous iron within 4 weeks prior to or during screening
- •Any use of erythropoiesis-stimulating agents within 6 weeks prior to or during screening
Arms & Interventions
Vadadustat, Dose 1
Daily oral dose
Intervention: Vadadustat
Vadadustat, Dose 2
Daily oral dose
Intervention: Vadadustat
Vadadustat, Dose 3
Daily oral dose
Intervention: Vadadustat
Placebo
Daily oral dose
Intervention: Placebo
Outcomes
Primary Outcomes
Mean Change in Hemoglobin (Hb) Levels From Pre-treatment to the End of the Primary Efficacy Period
Time Frame: Pre-treatment; Week 6
The pre-treatment value for Hb was defined as the average of 2 values obtained prior to treatment, i.e., the qualifying screening value and the Baseline value. Change from Pre-treatment was calculated as the Week 6 value minus the Pre-treatment value.
Secondary Outcomes
- Time to Reach the Target Hb Level of 10.0 to 12.0 g/dL From Baseline up to Week 16(from Baseline up to Week 16)
- Mean Change in Hb Between Pre-treatment and the End of the Dose Adjustment and Maintenance Period(Pre-treatment; Week 16)
- Mean Hb Levels at the End of the Primary Efficacy Period(up to Week 6)
- Mean Hb Levels at the End of the Dose Adjustment and Maintenance Period(up to Week 16)
- Number of Participants Who Achieved the Target Hb Level of 10.0 to 12.0 g/dL at the End of the Dose Adjustment and Maintenance Period(up to Week 16)
- Mean Change in Red Blood Cell (RBC) Count and Absolute Reticulocyte Count From Baseline to the End of the Primary Efficacy Period(Baseline; Week 6)
- Mean Change in RBC Count and Absolute Reticulocyte Count From Baseline to the End of the Dose Adjustment and Maintenance Period(Baseline; Week 16)
- Mean Change in Hematocrit and Reticulocytes From Baseline to the End of the Primary Efficacy Period(Baseline; Week 6)
- Mean Change in Hematocrit and Reticulocytes From Baseline to the End of the Dose Adjustment and Maintenance Period(Baseline; Week 16)
- Mean Change in Iron and Total Iron Binding Capacity (TIBC) From Baseline to the End of the Primary Efficacy Period(Baseline; Week 6)
- Mean Change in Iron and TIBC From Baseline to the End of the Dose Adjustment and Maintenance Period(Baseline; Week 16)
- Mean Change in Transferrin Saturation (TSAT) From Baseline to the End of the Primary Efficacy Period(Baseline; Week 6)
- Mean Change in TSAT From Baseline to the End of the Dose Adjustment and Maintenance Period(Baseline; Week 16)
- Mean Change in Ferritin and Hepcidin From Baseline to the End of the Primary Efficacy Period(Baseline; Week 6)
- Mean Change in Ferritin and Hepcidin From Baseline to the End of the Dose Adjustment and Maintenance Period(Baseline; Week 16)
- Number of Participants Who Required Rescue With Erythropoiesis-stimulating Agents (ESAs) From Baseline to the End of the Primary Efficacy Period(Baseline; Week 6)
- Number of Participants Who Required Rescue With ESAs From Baseline to the End of the Dose Adjustment and Maintenance Period(Baseline; Week 16)
- Number of Participants Who Required Rescue With a RBC Transfusion From Baseline to the End of the Primary Efficacy Period(Baseline; Week 6)
- Number of Participants Who Required Rescue With a RBC Transfusion From Baseline to the End of the Dose Adjustment and Maintenance Period(Baseline; Week 16)
- Number of the Participants With the Indicated Number of Dose Adjustments From Baseline to the End of the Dose Adjustment and Maintenance Period(Baseline to Week 16)
- Number of Participants Who Maintained Iron Sufficiency From Baseline to Week 6(Baseline to Week 6)
- Number of Participants Who Maintained Iron Sufficiency From Baseline to Week 16(Baseline to Week 16)
- Plasma Concentration Profile of Vadadustat and Its Metabolites Using a Pre-dose Sample From Week 4(Week 4, pre-dose)
- Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (SAEs) in the Primary Efficacy Period(up to Week 6)
- Number of Participants With TEAEs and Treatment-emergent SAEs in the Dose Adjustment and Maintenance Period(up to Week 16)