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Trial ยท NCT03029208

Anemia Studies in Chronic Kidney Disease (CKD): Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat-in Incident Dialysis (ASCEND-ID)

NCT03029208, Phase 3, Completed, GlaxoSmithKline; results first posted 2021-10-20

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Anemia Studies in Chronic Kidney Disease (CKD): Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat-in Incident Dialysis (ASCEND-ID). Trials, record NCT03029208. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03029208

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Anemia Studies in Chronic Kidney Disease (CKD): Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat-in Incident Dialysis (ASCEND-ID)
NCT number
NCT03029208
Status
Completed
Phases
Phase 3
Enrollment
312 participants, actual
Lead sponsor
GlaxoSmithKline
Conditions
Anaemia
Interventions
Daprodustat, Darbepoetin alfa, Iron therapy
First posted
2017-01-24
Last updated
2021-10-20
Other registries' IDs
eudract:2016-000507-86
Results first posted
2021-10-20

Source ClinicalTrials.gov

Registered outcomes23

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryMean Change From Baseline in Hemoglobin (Hgb) During Evaluation Period (Week 28 to Week 52)Baseline (Pre-dose on Day 1) and evaluation period (Week 28 to Week 52)
Blood samples were collected from participants for Hgb measurement. Hgb during the evaluation period was defined as the mean of all available post-randomization Hgb values (on and off-treatment) during the evaluation period (Week 28 to Week 52). For the primary analysis missing post-Baseline Hgb values were imputed using pre-specified multiple imputations. Change from Baseline was defined as the average of post-randomization values during the evaluation period minus Baseline value. Baseline was defined as the latest non-missing pre-dose assessment on or before the randomization date. An analysis of covariance (ANCOVA) model including randomization stratification factors Baseline Hgb and treatment was performed to obtain a point estimate and two-sided 95 percent (%) confidence interval (CI) for the treatment difference (daprodustat-darbepoetin alfa).
SecondaryAverage Monthly Intravenous Iron Dose (Milligrams) From Baseline to Week 52Baseline (Day 1) to Week 52
Total IV iron dose per participant was calculated from Day 1 to the earliest of (Week 52 visit date, first blood \[red blood cells or whole blood\] transfusion date and treatment stop date plus \[+\] 1 day) which corresponds to the time while the participant was on randomized treatment and before receiving a blood transfusion. Average monthly IV iron dose was calculated by Total IV iron dose divided by (/) (the number of days from Day 1 to the earliest of \[Week 52 visit date, first blood transfusion date and treatment stop date +1\] /30.4375 days). Data for participants until they underwent a red blood cells or whole blood transfusion was included in the analysis.
SecondaryChange From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Mean Arterial Blood Pressure (MAP) at Week 52Baseline (Day 1) and Week 52
SBP, DBP and MAP were measured in a semi-supine or seated position in the dialysis chair after at least a 5-minutes of rest. MAP is an average BP in an individual's arteries during a single cardiac cycle. Change from Baseline was calculated as post-dose visit value minus Baseline value. Baseline was defined as the latest non-missing pre-dose assessment on or before the randomization date. This analysis was carried out by using mixed model repeated measures (MMRM) model.
SecondaryChange From Baseline in SBP, DBP, MAP at End of TreatmentBaseline (Day 1) and end of treatment (last on-treatment value until Week 52)
SBP, DBP and MAP were measured in a semi-supine or seated position in the dialysis chair after at least a 5-minutes of rest. MAP is an average BP in an individual's arteries during a single cardiac cycle. End of treatment value for the blood pressure parameters were defined as the latest value on or before the last non-zero dose date plus (+) 1 day. Change from Baseline was calculated as post-dose visit value minus Baseline value. Baseline was defined as the latest non-missing pre-dose assessment on or before the randomization date. This analysis was carried out by using ANCOVA model.
SecondaryBlood Pressure (BP) Exacerbation Events Rate Per 100 Participant YearsUp to Week 52
BP exacerbation event is defined (based on post-dialysis BP) as SBP \>=25 millimeter of mercury (mmHg) increased from Baseline or SBP \>=180 mmHg; or DBP \>=15 mmHg increased from Baseline or DBP \>=110 mmHg. The BP exacerbation events per 100 participant years was estimated using the Negative Binomial Model.
SecondaryNumber of Participants With at Least One Blood Pressure Exacerbation Event During StudyUp to Week 52
BP exacerbation was defined (based on post-dialysis BP) as: SBP \>=25 mmHg increased from Baseline or SBP \>=180 mmHg; DBP \>=15 mmHg increased from Baseline or DBP \>=110 mmHg. Number of participants with at least one blood pressure exacerbation event is presented.
SecondaryChange From Baseline in Post-randomization Hgb at Week 52Baseline (Day 1) and Week 52
Blood samples were collected from participants for Hgb measurements. Change from Baseline was calculated as post-dose visit value minus Baseline value. Baseline was defined as the latest non-missing pre-dose assessment on or before the randomization date.
SecondaryNumber of Hgb Responders (Hgb in the Analysis Range of 10 to 11.5 Grams/Deciliter) During Evaluation Period (Week 28 to Week 52)Weeks 28 to 52
Mean Hgb during the evaluation period was defined as the mean of all evaluable Hgb values during the evaluation period (Week 28 to Week 52) including any evaluable unscheduled Hgb values that were taken during this time period. Hgb responders were defined as number of participants with a mean Hgb during the evaluation period that falls within the Hgb analysis range of 10-11.5 g/dL.
SecondaryPercentage of Time for Which Hgb Was Within the Analysis Range (10 to 11.5 g/dL) During Evaluation Period (Week 28 to Week 52): Non-inferiority AnalysisWeeks 28 to 52
Percentage of days for which a participant's Hgb was within the analysis range of 10-11.5 g/dL (both inclusive) during the evaluation period (Week 28 to Week 52), including any unscheduled evaluable Hgb values that were taken during this time period was calculated. Percentage of time for which Hgb was within range for a participant was calculated by dividing 'the total number of days that Hgb was within range during Weeks 28 to 52' by 'the total number of days the participant remained on treatment during Weeks 28 to 52'.
SecondaryPercentage of Time for Which Hgb Was Within the Analysis Range (10 to 11.5 g/dL) During Evaluation Period (Week 28 to Week 52): Superiority AnalysisWeeks 28 to 52
Percentage of days for which a participant's Hgb was within the analysis range of 10-11.5 g/dL (both inclusive) during the evaluation period (Week 28 to Week 52), including any unscheduled evaluable Hgb values that were taken during this time period was calculated. Percentage of time for which Hgb was within range for a participant was calculated by dividing 'the total number of days that Hgb was within range during Weeks 28 to 52' by 'the total number of days the participant remained on treatment during Weeks 28 to 52'.

Outcomes23

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYMean Change From Baseline in Hemoglobin (Hgb) During Evaluation Period (Week 28 to Week 52)Baseline (Pre-dose on Day 1) and evaluation period (Week 28 to Week 52)Intent-to-Treat (ITT) Population comprised all randomized participants (who received a treatment randomization number).Grams per deciliterLEAST_SQUARES_MEAN
SECONDARYAverage Monthly Intravenous Iron Dose (Milligrams) From Baseline to Week 52Baseline (Day 1) to Week 52ITT Population. Only those participants with data available at the indicated time points were analyzed.MilligramLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Mean Arterial Blood Pressure (MAP) at Week 52Baseline (Day 1) and Week 52ITT Population. Only those participants with data available at the indicated time points were analyzed.Millimeter of mercuryLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in SBP, DBP, MAP at End of TreatmentBaseline (Day 1) and end of treatment (last on-treatment value until Week 52)ITT Population. Only those participants with data available at the indicated time points were analyzed.Millimeter of mercuryLEAST_SQUARES_MEAN
SECONDARYBlood Pressure (BP) Exacerbation Events Rate Per 100 Participant YearsUp to Week 52ITT Population. Only those participants with data available at the indicated time points were analyzed.Events per 100 participant yearNUMBER
SECONDARYNumber of Participants With at Least One Blood Pressure Exacerbation Event During StudyUp to Week 52ITT Population. Only those participants with data available at the indicated time points were analyzed.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYChange From Baseline in Post-randomization Hgb at Week 52Baseline (Day 1) and Week 52ITT Population. Only those participants with data available at the indicated time points were analyzed.Grams per deciliterLEAST_SQUARES_MEAN
SECONDARYNumber of Hgb Responders (Hgb in the Analysis Range of 10 to 11.5 Grams/Deciliter) During Evaluation Period (Week 28 to Week 52)Weeks 28 to 52ITT Population. Only those participants with data available at the indicated time points were analyzed.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYPercentage of Time for Which Hgb Was Within the Analysis Range (10 to 11.5 g/dL) During Evaluation Period (Week 28 to Week 52): Non-inferiority AnalysisWeeks 28 to 52ITT Population. Only those participants with data available at the indicated time points were analyzed.Percentage of daysMEDIAN
SECONDARYPercentage of Time for Which Hgb Was Within the Analysis Range (10 to 11.5 g/dL) During Evaluation Period (Week 28 to Week 52): Superiority AnalysisWeeks 28 to 52ITT Population. Only those participants with data available at the indicated time points were analyzed.Percentage of daysMEDIAN

Results by group295

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Mean Change From Baseline in Hemoglobin (Hgb) During Evaluation Period (Week 28 to Week 52)Daprodustat1.02Standard Error 0.086Grams per deciliter
Mean Change From Baseline in Hemoglobin (Hgb) During Evaluation Period (Week 28 to Week 52)Darbepoetin Alfa1.12Standard Error 0.085Grams per deciliter
Average Monthly Intravenous Iron Dose (Milligrams) From Baseline to Week 52Daprodustat144.7Standard Error 10.90Milligram
Average Monthly Intravenous Iron Dose (Milligrams) From Baseline to Week 52Darbepoetin Alfa125.3Standard Error 10.97Milligram
Change From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Mean Arterial Blood Pressure (MAP) at Week 52DaprodustatSBP-3.57Standard Error 2.063Millimeter of mercury
Change From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Mean Arterial Blood Pressure (MAP) at Week 52Darbepoetin AlfaSBP-6.80Standard Error 2.931Millimeter of mercury
Change From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Mean Arterial Blood Pressure (MAP) at Week 52DaprodustatDBP0.21Standard Error 1.216Millimeter of mercury
Change From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Mean Arterial Blood Pressure (MAP) at Week 52Darbepoetin AlfaDBP-4.01Standard Error 1.650Millimeter of mercury
Change From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Mean Arterial Blood Pressure (MAP) at Week 52DaprodustatMAP-0.95Standard Error 1.364Millimeter of mercury
Change From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Mean Arterial Blood Pressure (MAP) at Week 52Darbepoetin AlfaMAP-5.05Standard Error 1.894Millimeter of mercury

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDDaprodustat157
Overall StudySTARTEDDarbepoetin Alfa155
Overall StudyCOMPLETEDDaprodustat155
Overall StudyCOMPLETEDDarbepoetin Alfa151
Overall StudyNOT COMPLETEDDaprodustat2
Overall StudyNOT COMPLETEDDarbepoetin Alfa4

Adverse events284

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherHypertensionVascular disordersDaprodustat2715751
otherHypertensionVascular disordersDarbepoetin Alfa2415535
otherDialysis hypotensionVascular disordersDaprodustat2115734
otherDialysis hypotensionVascular disordersDarbepoetin Alfa1515522
otherHypotensionVascular disordersDaprodustat71578
otherHypotensionVascular disordersDarbepoetin Alfa91559
otherDiarrhoeaGastrointestinal disordersDaprodustat1415717
otherDiarrhoeaGastrointestinal disordersDarbepoetin Alfa1015510
otherVomitingGastrointestinal disordersDaprodustat1115716
otherVomitingGastrointestinal disordersDarbepoetin Alfa51555

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityDaprodustat17157
Total, all-cause mortalityDarbepoetin Alfa12155
Total, other adverse eventsDaprodustat76157
Total, other adverse eventsDarbepoetin Alfa74155
Total, serious adverse eventsDaprodustat52157
Total, serious adverse eventsDarbepoetin Alfa51155

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
35377393DERIVEDPubMed
36005278DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons5

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Daprodustat vs Darbepoetin Alfa: Number of Participants With at Least One Blood Pressure Exacerbation Event During StudyTrial comparisons
Daprodustat vs Darbepoetin Alfa: Number of Participants Permanently Stopping Randomized Treatment Due to Meeting Rescue CriteriaTrial comparisons
Daprodustat vs Darbepoetin Alfa: Number of Hgb Responders (Hgb in the Analysis Range of 10 to 11.5 Grams/Deciliter) During Evaluation Period (Week 28 to Week 52)Trial comparisons
Daprodustat vs Darbepoetin Alfa: deaths from any causeTrial comparisons
Daprodustat vs Darbepoetin Alfa: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
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
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03029208

GET https://conductscience.org/api/trials/v1/NCT03029208/registered?page=2