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Trial ยท NCT03400033

Anemia Studies in Chronic Kidney Disease (CKD): Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat-Three-times Weekly Dosing in Dialysis (ASCEND-TD)

NCT03400033, Phase 3, Completed, GlaxoSmithKline; results first posted 2021-07-12

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-Three-times Weekly Dosing in Dialysis (ASCEND-TD). Trials, record NCT03400033. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03400033

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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-Three-times Weekly Dosing in Dialysis (ASCEND-TD)
NCT number
NCT03400033
Status
Completed
Phases
Phase 3
Enrollment
407 participants, actual
Lead sponsor
GlaxoSmithKline
Conditions
Anaemia
Interventions
Daprodustat tablets, Matching placebo tablets, Epoetin alfa vials, Saline vials or bags
First posted
2018-01-17
Last updated
2021-07-12
Other registries' IDs
eudract:2017-004372-56
Results first posted
2021-07-12

Source ClinicalTrials.gov

Registered outcomes13

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

ListOutcomeTime frameDescription
PrimaryMean Change From Baseline in Hemoglobin Levels Over the 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 hemoglobin measurements. Hemoglobin during the evaluation period was defined as the mean of all available post-randomization hemoglobin values (on and off-treatment) during the evaluation period (Week 28 to Week 52). For the primary analysis, the missing post-Baseline hemoglobin values were imputed using pre-specified multiple imputations. Baseline value was the latest non-missing pre-dose assessment on or before the randomization date, including those from unscheduled visits. Change from Baseline was defined as the average of post-randomization values during the evaluation period minus Baseline value. Analysis was performed using the Analysis of Covariance (ANCOVA) model with terms for treatment, Baseline hemoglobin, and region.
SecondaryMean Average Monthly On-treatment Intravenous (IV) Iron Dose Per ParticipantDay 1 to Week 52
Average monthly IV iron dose (mg) per participant during Day 1 to Week 52 was determined by calculating the total IV iron dose per participant from Day 1 to Week 52 while the participant was on study treatment and dividing by (the number of days the participant was on study treatment divided by 30.4375 days). Analysis was performed using the ANCOVA model with terms for treatment, Baseline monthly IV iron dose, and region.
SecondaryChange From Baseline in Hemoglobin Levels at Week 52Baseline (Pre-dose on Day 1) and Week 52
Blood samples were collected from participants for hemoglobin measurements. Baseline value was the latest non-missing pre-dose assessment on or before the randomization date, including those from unscheduled visits. Change from Baseline was defined as the post-randomization visit value minus Baseline value. Analysis was performed using a mixed model repeated measures (MMRM) model fitted to hemoglobin data collected after Baseline up to Week 52, excluding values collected during the stabilization period (Day 1 to Week 28). The model included factors for treatment, time, region, Baseline hemoglobin and Baseline hemoglobin by time and treatment by time interaction terms.
SecondaryPercentage of Time With Hemoglobin in the Analysis Range (10 to 11.5 Grams/Deciliter) Over Evaluation Period (Week 28 to Week 52)Week 28 to Week 52
Participants received treatment during the study to achieve or maintain hemoglobin level in the target range. Percentage of time for which hemoglobin level was maintained within the analysis range (10 to 11.5 grams/deciliter) has been presented.
SecondaryNumber of Hemoglobin Responders in the Hemoglobin Analysis Range (10 to 11.5 Grams/Deciliter) Over Evaluation Period (Week 28 to Week 52)Week 28 to Week 52
Mean hemoglobin during the evaluation period was defined as the mean of all evaluable hemoglobin values during the evaluation period (Week 28 to Week 52) including any evaluable unscheduled hemoglobin values that were taken during this time period. Hemoglobin responders were defined as the number of participants with a mean hemoglobin during the evaluation period that falls within the hemoglobin analysis range of 10-11.5 grams/deciliter.
SecondaryPercentage of Participants Permanently Stopping Study Treatment Due to Meeting Rescue CriteriaUp to Week 52Percentage of participants permanently stopping study treatment due to meeting rescue criteria has been presented.
SecondaryChange From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP) and Mean Arterial Pressure (MAP) at Week 52Baseline (Week -4 ) and Week 52
Measurements for SBP, DBP and MAP were taken with the participant in a semi-supine or seated position in the dialysis chair after at least a 5-minute rest period. MAP is the average BP in an individual's arteries during a single cardiac cycle. Baseline value was the latest non-missing pre-dose assessment on or before the randomization date, including those from unscheduled visits. Change from Baseline was defined as the on-treatment visit value minus Baseline value. Analysis was performed using MMRM model with treatment group, time, region, Baseline value, Baseline value\*time, treatment group\*time as variables.
SecondaryChange From Baseline in SBP, DBP and MAP at End of TreatmentBaseline (Week -4) and end of treatment (last on-treatment value until Week 52)
Measurements for SBP, DBP and MAP were taken with the participant in a semi-supine or seated position in the dialysis chair after at least a 5-minute rest period. MAP is the average BP in an individual's arteries during a single cardiac cycle. Baseline value was the latest non-missing pre-dose assessment on or before the randomization date, including those from unscheduled visits. Change from Baseline was defined as the last on-treatment visit value minus Baseline value. Analysis was performed using ANCOVA model with terms for treatment group, region and Baseline value. Adjusted mean and standard error have been presented.
SecondaryBlood Pressure (BP) Exacerbation Event Rate Per 100 Participant YearsUp to 52 weeks
BP exacerbation event is defined (based on post-dialysis BP) as SBP \>=25 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 BP Exacerbation Event During the StudyUp to 52 weeks
BP exacerbation (based on post-dialysis BP) is defined as: SBP \>= 25 mmHg increased from Baseline or SBP \>=180mmHg; or DBP \>=15 mmHg increase from Baseline or DBP \>=110 mmHg. Number of participants with at least 1 BP exacerbation event have been reported.

Outcomes13

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYMean Change From Baseline in Hemoglobin Levels Over the Evaluation Period (Week 28 to Week 52)Baseline (Pre-dose on Day 1) and evaluation period (Week 28 to Week 52)All Randomized (Intent-to-treat \[ITT\]) Population comprised of all randomized participants. Any participant who received a treatment randomization number was considered to have been randomized.Grams per deciliter (g/dL)LEAST_SQUARES_MEAN
SECONDARYMean Average Monthly On-treatment Intravenous (IV) Iron Dose Per ParticipantDay 1 to Week 52All Randomized (ITT) Population. Only those participants with data available at specified time points were analyzed.MilligramsLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Hemoglobin Levels at Week 52Baseline (Pre-dose on Day 1) and Week 52All Randomized (ITT) Population. Only those participants with data available at specified time points were analyzed.Grams per deciliterLEAST_SQUARES_MEAN
SECONDARYPercentage of Time With Hemoglobin in the Analysis Range (10 to 11.5 Grams/Deciliter) Over Evaluation Period (Week 28 to Week 52)Week 28 to Week 52All Randomized (ITT) Population. Only those participants with at least one evaluable hemoglobin value during the evaluation period were analyzed.Percentage of daysMEDIAN
SECONDARYNumber of Hemoglobin Responders in the Hemoglobin Analysis Range (10 to 11.5 Grams/Deciliter) Over Evaluation Period (Week 28 to Week 52)Week 28 to Week 52All Randomized (ITT) Population. Only those participants with at least one evaluable hemoglobin value during the evaluation period were analyzed.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYPercentage of Participants Permanently Stopping Study Treatment Due to Meeting Rescue CriteriaUp to Week 52All Randomized (ITT) PopulationPercentage of participantsNUMBER
SECONDARYChange From Baseline in Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP) and Mean Arterial Pressure (MAP) at Week 52Baseline (Week -4 ) and Week 52All Randomized (ITT) Population. Only those participants with data available at specified time points were analyzed.Millimeter of mercury (mmHg)LEAST_SQUARES_MEAN
SECONDARYChange From Baseline in SBP, DBP and MAP at End of TreatmentBaseline (Week -4) and end of treatment (last on-treatment value until Week 52)All Randomized (ITT) Population. Only those participants with data available at specified time points were analyzed.Millimeter of mercury (mmHg)MEAN
SECONDARYBlood Pressure (BP) Exacerbation Event Rate Per 100 Participant YearsUp to 52 weeksAll Randomized (ITT) Population. Only those participants with data available at specified time points were analyzed.Events per 100 participant yearsNUMBER
SECONDARYNumber of Participants With at Least One BP Exacerbation Event During the StudyUp to 52 weeksAll Randomized (ITT) Population. Only those participants with data available at specified time points were analyzed.ParticipantsCOUNT_OF_PARTICIPANTS

Results by group162

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

OutcomeGroupCategoryValueSpreadUnits
Mean Change From Baseline in Hemoglobin Levels Over the Evaluation Period (Week 28 to Week 52)Daprodustat-0.04Standard Error 0.045Grams per deciliter (g/dL)
Mean Change From Baseline in Hemoglobin Levels Over the Evaluation Period (Week 28 to Week 52)Epoetin Alfa0.02Standard Error 0.066Grams per deciliter (g/dL)
Mean Average Monthly On-treatment Intravenous (IV) Iron Dose Per ParticipantDaprodustat98.11Standard Error 11.049Milligrams
Mean Average Monthly On-treatment Intravenous (IV) Iron Dose Per ParticipantEpoetin Alfa106.23Standard Error 15.569Milligrams
Change From Baseline in Hemoglobin Levels at Week 52Daprodustat-0.03Standard Error 0.069Grams per deciliter
Change From Baseline in Hemoglobin Levels at Week 52Epoetin Alfa0.11Standard Error 0.098Grams per deciliter
Percentage of Time With Hemoglobin in the Analysis Range (10 to 11.5 Grams/Deciliter) Over Evaluation Period (Week 28 to Week 52)Daprodustat70.83Inter-Quartile Range 50.98 to 91.07Percentage of days
Percentage of Time With Hemoglobin in the Analysis Range (10 to 11.5 Grams/Deciliter) Over Evaluation Period (Week 28 to Week 52)Epoetin Alfa61.76Inter-Quartile Range 29.69 to 85.19Percentage of days
Number of Hemoglobin Responders in the Hemoglobin Analysis Range (10 to 11.5 Grams/Deciliter) Over Evaluation Period (Week 28 to Week 52)Daprodustat172Participants
Number of Hemoglobin Responders in the Hemoglobin Analysis Range (10 to 11.5 Grams/Deciliter) Over Evaluation Period (Week 28 to Week 52)Epoetin Alfa68Participants

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDDaprodustat270
Overall StudySTARTEDEpoetin Alfa137
Overall StudyCOMPLETEDDaprodustat269
Overall StudyCOMPLETEDEpoetin Alfa135
Overall StudyNOT COMPLETEDDaprodustat1
Overall StudyNOT COMPLETEDEpoetin Alfa2

Adverse events354

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherDiarrhoeaGastrointestinal disordersDaprodustat2327036
otherDiarrhoeaGastrointestinal disordersEpoetin Alfa1413619
otherVomitingGastrointestinal disordersDaprodustat1527016
otherVomitingGastrointestinal disordersEpoetin Alfa1313615
otherNauseaGastrointestinal disordersDaprodustat62708
otherNauseaGastrointestinal disordersEpoetin Alfa1113621
otherAbdominal painGastrointestinal disordersDaprodustat72708
otherAbdominal painGastrointestinal disordersEpoetin Alfa91369
otherHypertensionVascular disordersDaprodustat2227035
otherHypertensionVascular disordersEpoetin Alfa1413619

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityDaprodustat18270
Total, all-cause mortalityEpoetin Alfa10136
Total, other adverse eventsDaprodustat74270
Total, other adverse eventsEpoetin Alfa42136
Total, serious adverse eventsDaprodustat80270
Total, serious adverse eventsEpoetin Alfa47136

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
35918106DERIVEDPubMed
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 comparisons4

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

ComparisonSource
Daprodustat vs Epoetin Alfa: Number of Hemoglobin Responders in the Hemoglobin Analysis Range (10 to 11.5 Grams/Deciliter) Over Evaluation Period (Week 28 to Week 52)Trial comparisons
Daprodustat vs Epoetin Alfa: Number of Participants With at Least One BP Exacerbation Event During the StudyTrial comparisons
Daprodustat vs Epoetin Alfa: deaths from any causeTrial comparisons
Daprodustat vs Epoetin 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/NCT03400033

GET https://conductscience.org/api/trials/v1/NCT03400033/results?page=2