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Comparison · NCT02680574-deaths

Vadadustat vs Darbepoetin Alfa: deaths from any cause

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

2 sourcestrial-comparisons-2026-03-23-0.1.0

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ConductScience Library. Vadadustat vs Darbepoetin Alfa: deaths from any cause. Trial comparisons, record NCT02680574-deaths. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT02680574-deaths

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Measures6

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

MeasureValue95% interval, lower95% interval, upperMethodNote
Risk in group 10.1610.1380.188wilson
Risk in group 20.1610.1380.187wilson
Risk difference, group 1 minus group 20.000187-0.03460.035newcombe hybrid score
Risk ratio, group 1 over group 210.8071.24log
Odds ratio, group 1 over group 210.7751.29log
Number needed to harm, for one more death from any cause on Vadadustat than on Darbepoetin Alfa5,340from the risk difference intervalthe interval includes no difference

Groups2

Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.

GroupTitleDescriptionWith the outcomeAnalysedClinicalTrials.gov code
Group 1Vadadustat
Participants were randomized to receive Vadadustat at an initial oral dose of 300 milligrams per day (mg/day). Thereafter, Vadadustat was taken once daily on an outpatient basis. Up-and-down titration to 150, 300, 450, and 600 mg (available tablet strength was administered as the appropriate number of 150 mg tablets) was allowed during the study based on hemoglobin (Hb) level measurements to maintain target Hb levels.
139861EG000
Group 2Darbepoetin Alfa
Participants were randomized to Darbepoetin alfa at an initial dose that was based on the current package insert for investigational sites in the United States (US), and the Summary of Product Characteristics (SmPC) for all other investigational sites (non-US) for adult participants with chronic kidney disease not on dialysis. For participants already on Darbepoetin alfa, the initial dosing regimen in the study was based on the prior dosing regimen.
139862EG001

Harm

What it counts
Total, all-cause mortality
Time frame
Up to 208 weeks

Source ClinicalTrials.gov

Trial

Title
Efficacy and Safety Study to Evaluate Vadadustat for the Maintenance Treatment of Anemia in Participants With Non-dialysis-dependent Chronic Kidney Disease (NDD-CKD)
NCT number
NCT02680574
Phases
PHASE3
Conditions
Anemia, Non-Dialysis-Dependent Chronic Kidney Disease
Interventions
Vadadustat, Darbepoetin alfa
Lead sponsor
Akebia Therapeutics
Results first posted
2022-06-27

Source ClinicalTrials.gov

Source

Release
trial-comparisons-2026-03-23-0.1.0
Release manifest SHA-256
f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
AACT copy
2026-03-23
Tables read
outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet

Source ClinicalTrials.gov

Sources 2

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.

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