The purpose of this study is to determine whether roxadustat is safe and effective in the treatment of anemia in participants who have just begun dialysis treatment for ESRD.
There is a screening period of up to 6 weeks, a treatment period of a minimum of 52 weeks and a maximum of approximately up to 3 years after last participant is randomized, and a post-treatment follow-up period of 4 weeks. Participants will be randomized in a 1:1 ratio to receive either open-label roxadustat or epoetin alfa (active control).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
1,043
Roxadustat will be administered per dose and schedule specified in the arm.
Epoetin alfa will be administered TIW according to the epoetin alfa USPI or SmPC, or local SOC.
US (FDA) Submission: Mean Hb Change From Baseline to The Average Level During The Evaluation Period (Week 28 to Week 52), Regardless of Rescue Therapy (ITT Population)
Hb values under the influence of rescue therapy were not censored for the primary analysis. Rescue therapy for roxadustat treated participants was defined as recombinant erythropoietin or analogue (erythropoiesis-stimulating agent \[ESA\]) or red blood cell (RBC) transfusion, and rescue therapy for epoetin alfa treated participants was defined as RBC transfusion. Baseline Hb was defined the mean of up to 4 last central lab values prior to the first dose of study treatment. The intermittent missing Hb data was imputed for each treatment relying on non-missing data from all participants within each treatment group using the Monte Carlo Markov Chain (MCMC) imputation model, Monotone missing data were imputed by regression from its own treatment group.
Time frame: Baseline (Day 1, Week 0), Week 28 to 52
Ex-U.S. Submission: Hb Responder Rate- Percentage of Participants Who Achieved a Hb Response at 2 Consecutive Visits at Least 5 Days Apart During First 24 Weeks of Treatment, Without Rescue Therapy Within 6 Weeks Prior to the Hb Response (PPS Population)
Hb response was defined, using central laboratory values, as: Hb ≥11.0 g/dL and a Hb increase from baseline by ≥1.0 g/dL in participants whose baseline Hb \>8.0 g/dL, or increase in Hb ≥2.0 g/dL in participants whose baseline Hb ≤8.0 g/dL. Rescue therapy for roxadustat treated participant was defined as recombinant erythropoietin or analogue (ESA) or RBC transfusion, and rescue therapy for epoetin alfa treated participants was defined as RBC transfusion.
Time frame: Baseline (Day 1, Week 0) up to Week 24
US (FDA Submission): Hb Responder Rate- Percentage of Participants Who Achieved a Hb Response at 2 Consecutive Visits at Least 5 Days Apart During First 24 Weeks of Treatment, Without Rescue Therapy Within 6 Weeks Prior to the Hb Response (ITT Population)
Hb response was defined, using central laboratory values, as: Hb ≥11.0 g/dL and a Hb increase from baseline by ≥1.0 g/dL in participants whose baseline Hb \>8.0 g/dL, or increase in Hb ≥2.0 g/dL in participants whose baseline Hb ≤8.0 g/dL. Rescue therapy for roxadustat treated participant was defined as recombinant erythropoietin or analogue (ESA) or RBC transfusion, and rescue therapy for epoetin alfa treated participants was defined as RBC transfusion.
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Investigational Site
Chula Vista, California, United States
Investigational Site
La Mesa, California, United States
Investigational Site
San Diego, California, United States
Investigational Site
Coral Springs, Florida, United States
Investigational Site
Lauderdale Lakes, Florida, United States
Investigational Site
Miami, Florida, United States
Investigational Site
Miami, Florida, United States
Investigational Site
Tampa, Florida, United States
Meridian
Meridian, Idaho, United States
Investigational Site
Shreveport, Louisiana, United States
...and 103 more locations
Time frame: Baseline (Day 1, Week 0) up to Week 24
Ex-US Submission: Mean Hb Change From Baseline to The Average Level During The Evaluation Period (Week 28 to Week 52), Regardless of Rescue Therapy (PPS Population)
Hb values under the influence of rescue therapy were censored up to 6 weeks in the analysis. Rescue therapy for roxadustat treated participants was defined as recombinant erythropoietin or analogue (ESA or RBC transfusion, and rescue therapy for epoetin alfa treated participants was defined as RBC transfusion. Baseline Hb was defined the mean of up to 4 last central lab values prior to the first dose of study treatment. The intermittent missing Hb data was imputed for each treatment relying on non-missing data from all participants within each treatment group using the MCMC imputation model, Monotone missing data were imputed by regression from its own treatment group.
Time frame: Baseline (Day 1, Week 0), Week 28 to 52
Mean Change From Baseline in Low-Density Lipoprotein (LDL) Cholesterol Averaged Over Weeks 12 to 24
Baseline LDL Cholesterol was defined as the mean of values obtained within 6 weeks prior to the first dose of study treatment.
Time frame: Baseline (Day 1, Week 0), Week 12 to 24
Mean Change From Baseline in Hb Levels Between Weeks 18 to 24 Regardless of Rescue Therapy in Participants Whose Baseline High Sensitivity C-Reactive Protein (Hs-CRP)> Upper Limit of Normal (ULN)
Hb values under the influence of rescue therapy were not censored in the analysis. Rescue therapy for roxadustat treated participants was defined as recombinant erythropoietin or analogue (ESA) or RBC transfusion, and rescue therapy for epoetin alfa treated participants was defined as RBC transfusion. Baseline Hb was defined the mean of up to 4 last central lab values prior to the first dose of study treatment. The intermittent missing Hb data was imputed for each treatment relying on non-missing data from all participants within each treatment group using the MCMC imputation model, Monotone missing data were imputed by regression from its own treatment group.
Time frame: Baseline (Day 1, Week 0), Week 18 to 24
Median Monthly IV Iron Use Per Patient-Exposure-Month (PEM) During Weeks 28 to 52
Monthly iron use for each participant = Total IV iron in mg / \[(last dose date - first dose date of study medication in the period)+1\]/ 28.
Time frame: Weeks 28 to 52
Time to First RBC Transfusion
Median time to event (weeks) was calculated using Kaplan Meier Survival Estimates.
Time frame: Baseline (Day 1, Week 0) up to last dose of study drug (maximum treatment duration was 227.9 weeks for roxadustat and 226.9 weeks for epoetin alfa)
Mean Change From Baseline in Mean Arterial Pressure (MAP) Averaged Over Weeks 8 to 12
Baseline MAP was defined as the last MAP value prior to the first dose of study treatment.
Time frame: Baseline (Day 1, Week 0), Weeks 8 to 12
Time to First Exacerbation of Hypertension During Weeks 28 to 52
An exacerbation of hypertension was defined as increase from baseline of ≥20 mmHg in systolic blood pressure (sBP) and sBP ≥170 mmHg or an increase from baseline of ≥15 mm Hg in diastolic blood pressure (dBP) and dBP ≥100 mmHg. Median time to event (weeks) was calculated using Kaplan Meier Survival Estimates.
Time frame: Weeks 28 to 52
Percentage of Participants With Exacerbation of Hypertension During Weeks 28 to 52
Percentage of participants with exacerbation of hypertension, meeting at least one of the following criteria are reported: i) Increase in BP: An increase from baseline of ≥ 20 mmHg in sBP and sBP \>170 mmHg, or an increase from baseline of ≥15 mmHg dBP and dBP \>100 mmHg.
Time frame: Weeks 28 to 52
Time to Achieve the First Hb Response up to Week 24 Censoring for Rescue Therapy
Hb values under the influence of rescue therapy were censored up to 6 weeks in the analysis. Hb response was defined, using central laboratory values, as: Hb ≥11.0 g/dL and a Hb increase from baseline by ≥1.0 g/dL in participants whose baseline Hb \>8.0 g/dL, or increase in Hb ≥2.0 g/dL in participants whose baseline Hb ≤8.0 g/dL. Rescue therapy for roxadustat treated participant was defined as recombinant erythropoietin or analogue (ESA) or RBC transfusion, and rescue therapy for epoetin alfa treated participants was defined as RBC transfusion. Median time to event was calculated using Kaplan Meier Survival Estimates.
Time frame: Baseline (Day 1, Week 0) up to Week 24
Percentage of Participants With Hb ≥10.0 g/dL Averaged Over Weeks 28 to 36 and 28 to 52, Regardless of Rescue Therapy
Hb values under the influence of rescue therapy were not censored in the analysis. Rescue therapy for roxadustat treated participants was defined as recombinant erythropoietin or analogue (ESA) or RBC transfusion, and rescue therapy for epoetin alfa treated participants was defined as RBC transfusion. Baseline Hb was defined the mean of up to 4 last central lab values prior to the first dose of study treatment.
Time frame: Weeks 28 to 36 and 28 to 52
Mean Hb Change From Baseline to The Average Level During The Evaluation Period (Week 28 to Week 36), Censoring for Rescue Therapy
Hb values under the influence of rescue therapy were censored up to 6 weeks in the analysis. Rescue therapy for roxadustat treated participants was defined as recombinant erythropoietin or analogue (ESA) or RBC transfusion, and rescue therapy for epoetin alfa treated participants was defined as RBC transfusion. Baseline Hb was defined the mean of up to 4 last central lab values prior to the first dose of study treatment.
Time frame: Baseline (Day 1, Week 0), Week 28 to 36