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Trial · NCT00093015

Trial to Reduce Cardiovascular Events With Aranesp® Therapy (TREAT)

NCT00093015, Phase 3, Completed, Amgen; results first posted 2010-09-02

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Trial to Reduce Cardiovascular Events With Aranesp® Therapy (TREAT). Trials, record NCT00093015. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00093015

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Trial

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

Title
Trial to Reduce Cardiovascular Events With Aranesp® Therapy (TREAT)
NCT number
NCT00093015
Status
Completed
Phases
Phase 3
Enrollment
4,038 participants, actual
Lead sponsor
Amgen
Conditions
Kidney Disease, Diabetes Mellitus, Anemia
Interventions
Placebo, darbepoetin alfa
First posted
2004-09-29
Last updated
2022-11-08
Results first posted
2010-09-02
Limitations and caveats
4047 subjects were enrolled, but before unblinding, all information from 9 subjects was excluded from two sites (3 and 6 subjects, respectively) that did not adhere to Good Clinical Practice guidelines. 4038 subjects were analyzed and reported.

Source ClinicalTrials.gov

Registered outcomes11

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

ListOutcomeTime frameDescription
Primary
Time to All-cause Mortality or Cardiovascular (CV) Events Including Hospitalization Due to Acute Myocardial Ischemia, Congestive Heart Failure (CHF), Myocardial Infarction (MI), and Cerebrovascular Accident (CVA)
Until a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
Time from randomization to the first confirmed composite event. Kaplan-Meier estimate of the median time was not estimable due to low proportion of participants experiencing at least one events, therefore participants experiencing at least one event were summarized.
PrimaryTime to All-cause Mortality or End Stage Renal Disease (ESRD)Until a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
Time from randomization to first event of all-cause mortality or ESRD. Kaplan-Meier estimate of the median time was not estimable due to low proportion of participants experiencing at least one events, therefore participants experiencing at least one event were summarized.
SecondaryTime to All-cause MortalityUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
Time from randomization to all-cause mortality. Kaplan-Meier estimate of the median time was not estimable due to low proportion of participants experiencing at least one events, therefore participants experiencing at least one event were summarized.
SecondaryTime to Cardiovascular MortalityUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
Time from randomization to cardiovascular (CV) mortality. Kaplan-Meier estimate of the median time was not estimable due to low proportion of participants experiencing at least one events, therefore participants experiencing at least one event were summarized.
SecondaryTime to Myocardial InfarctionUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
Time from randomization to fatal or non-fatal myocardial infarction (MI). Kaplan-Meier estimate of the median time was not estimable due to low proportion of participants experiencing at least one events, therefore participants experiencing at least one event were summarized.
SecondaryTime to Cerebrovascular AccidentUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
Time from randomization to fatal or non-fatal cerebrovascular accident (CVA). Kaplan-Meier estimate of the median time was not estimable due to low proportion of participants experiencing at least one events, therefore participants experiencing at least one event were summarized.
SecondaryTime to Congestive Heart FailureUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
Time from randomization to fatal or non-fatal congestive heart failure(CHF). Kaplan-Meier estimate of the median time was not estimable due to low proportion of participants experiencing at least one events, therefore participants experiencing at least one event were summarized.
SecondaryTime to End Stage Renal DiseaseUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
Time from randomization to end stage renal disease (ESRD). Kaplan-Meier estimate of the median time was not estimable due to low proportion of participants experiencing at least one events, therefore participants experiencing at least one event were summarized.
SecondaryRate of Decline in Estimated Glomerular Filtration Rate (eGFR) Relative to BaselineUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
GFR was estimated using the following MDRD formula: 186 x \[Serum creatinine\]\^(-1.154) x \[Age\]\^(-0.203) x \[0.742 if subject is female\] x \[1.210 if subject is black\]. Change from baseline in eGFR at week 49 for each treatment group are presented. The treatment effect of the rate of decline in eGFR per year was estimated using the mixed model.
SecondaryChange in Patient Reported Fatigue Relative to Baseline at Week 25Baseline and week 25
Change in patient reported fatigue measured by the Functional Assessment of Cancer Therapy (FACT) - Fatigue scale from baseline to week 25. Range and direction of scale: 0 = most fatigue; 52 = least fatigue

Outcomes11

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARY
Time to All-cause Mortality or Cardiovascular (CV) Events Including Hospitalization Due to Acute Myocardial Ischemia, Congestive Heart Failure (CHF), Myocardial Infarction (MI), and Cerebrovascular Accident (CVA)
Until a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred firstThe analysis followed intent-to-treat principles. Subjects were analyzed as randomized using all available follow-up information.ParticipantsNUMBER
PRIMARYTime to All-cause Mortality or End Stage Renal Disease (ESRD)Until a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred firstThe analysis followed intent-to-treat principles. Subjects were analyzed as randomized using all available follow-up information.ParticipantsNUMBER
SECONDARYTime to All-cause MortalityUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred firstThe analysis followed intent-to-treat principles. Subjects were analyzed as randomized using all available follow-up information.ParticipantsNUMBER
SECONDARYTime to Cardiovascular MortalityUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred firstThe analysis followed intent-to-treat principles. Subjects were analyzed as randomized using all available follow-up information.ParticipantsNUMBER
SECONDARYTime to Myocardial InfarctionUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred firstThe analysis followed intent-to-treat principles. Subjects were analyzed as randomized using all available follow-up information.ParticipantsNUMBER
SECONDARYTime to Cerebrovascular AccidentUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred firstThe analysis followed intent-to-treat principles. Subjects were analyzed as randomized using all available follow-up information.ParticipantsNUMBER
SECONDARYTime to Congestive Heart FailureUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred firstThe analysis followed intent-to-treat principles. Subjects were analyzed as randomized using all available follow-up information.ParticipantsNUMBER
SECONDARYTime to End Stage Renal DiseaseUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred firstThe analysis followed intent-to-treat principles. Subjects were analyzed as randomized using all available follow-up information.ParticipantsNUMBER
SECONDARYRate of Decline in Estimated Glomerular Filtration Rate (eGFR) Relative to BaselineUntil a primary cardiovascular event (death, myocardial ischemia, congestive heart failure, myocardial infarction or cerebrovascular accident) occurred or 28 March 2009, whichever occurred first
Subjects were analyzed as randomized using all available eGFR measurements, except eGFR measurements measured after subjects develop ESRD since creatinine measurements were no longer reliable or meaningful for eGFR calculation.
mL/min/1.73m^2MEAN
SECONDARYChange in Patient Reported Fatigue Relative to Baseline at Week 25Baseline and week 25
Subjects with both the baseline and at least post-baseline measurement at week 25 for FACT-fatigue were included in the analysis and were analyzed as randomized. Last observation carried forward (LOCF) using last non-missing post-baseline value was used for missing post-baseline data for subjects who were still on study.
Units on a scaleMEAN

Results by group22

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

OutcomeGroupCategoryValueSpreadUnits
Time to All-cause Mortality or Cardiovascular (CV) Events Including Hospitalization Due to Acute Myocardial Ischemia, Congestive Heart Failure (CHF), Myocardial Infarction (MI), and Cerebrovascular Accident (CVA)
Placebo602Participants
Time to All-cause Mortality or Cardiovascular (CV) Events Including Hospitalization Due to Acute Myocardial Ischemia, Congestive Heart Failure (CHF), Myocardial Infarction (MI), and Cerebrovascular Accident (CVA)
Darbepoetin Alfa632Participants
Time to All-cause Mortality or End Stage Renal Disease (ESRD)Placebo618Participants
Time to All-cause Mortality or End Stage Renal Disease (ESRD)Darbepoetin Alfa652Participants
Time to All-cause MortalityPlacebo395Participants
Time to All-cause MortalityDarbepoetin Alfa412Participants
Time to Cardiovascular MortalityPlacebo250Participants
Time to Cardiovascular MortalityDarbepoetin Alfa259Participants
Time to Myocardial InfarctionPlacebo129Participants
Time to Myocardial InfarctionDarbepoetin Alfa124Participants

Participant flow8

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPlacebo2,026
Overall StudySTARTEDDarbepoetin Alfa2,012
Overall StudyReceived Study MedicationPlacebo2,019
Overall StudyReceived Study MedicationDarbepoetin Alfa2,004
Overall StudyCOMPLETEDPlacebo1,361
Overall StudyCOMPLETEDDarbepoetin Alfa1,348
Overall StudyNOT COMPLETEDPlacebo665
Overall StudyNOT COMPLETEDDarbepoetin Alfa664

Adverse events1,980

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersPlacebo1022,019
otherAnaemiaBlood and lymphatic system disordersDarbepoetin Alfa572,004
otherConstipationGastrointestinal disordersPlacebo1542,019
otherConstipationGastrointestinal disordersDarbepoetin Alfa1302,004
otherDiarrhoeaGastrointestinal disordersPlacebo2832,019
otherDiarrhoeaGastrointestinal disordersDarbepoetin Alfa2792,004
otherNauseaGastrointestinal disordersPlacebo2272,019
otherNauseaGastrointestinal disordersDarbepoetin Alfa2312,004
otherVomitingGastrointestinal disordersPlacebo1902,019
otherVomitingGastrointestinal disordersDarbepoetin Alfa2002,004

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo
Total, all-cause mortalityDarbepoetin Alfa
Total, other adverse eventsPlacebo1,5472,019
Total, other adverse eventsDarbepoetin Alfa1,5712,004
Total, serious adverse eventsPlacebo1,2192,019
Total, serious adverse eventsDarbepoetin Alfa1,2352,004

Papers12

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
15864229BACKGROUNDPubMed
17329707DERIVEDPubMed
19501439DERIVEDPubMed
19880844BACKGROUNDPubMed
20843249BACKGROUNDPubMed
21212421BACKGROUNDPubMed
21982669BACKGROUNDPubMed
22104547DERIVEDPubMed
25452859DERIVEDPubMed
26299230DERIVEDPubMed

1 to 10 of 12

See all 12 papers

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 comparisons10

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

ComparisonSource
Darbepoetin Alfa vs Placebo: Time to Cardiovascular MortalityTrial comparisons
Darbepoetin Alfa vs Placebo: Time to Cerebrovascular AccidentTrial comparisons
Darbepoetin Alfa vs Placebo: Time to All-cause Mortality or Cardiovascular (CV) Events Including Hospitalization Due to Acute Myocardial Ischemia, Congestive Heart Failure (CHF), Myocardial Infarction (MI), and Cerebrovascular Accident (CVA)
Trial comparisons
Darbepoetin Alfa vs Placebo: Time to Congestive Heart FailureTrial comparisons
Darbepoetin Alfa vs Placebo: Time to Myocardial InfarctionTrial comparisons
Darbepoetin Alfa vs Placebo: Time to All-cause MortalityTrial comparisons
Darbepoetin Alfa vs Placebo: Time to Hospitalization Due to Acute Myocardial IschemiaTrial comparisons
Darbepoetin Alfa vs Placebo: Time to All-cause Mortality or End Stage Renal Disease (ESRD)Trial comparisons
Darbepoetin Alfa vs Placebo: Time to End Stage Renal DiseaseTrial comparisons
Darbepoetin Alfa vs Placebo: 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/NCT00093015

GET https://conductscience.org/api/trials/v1/NCT00093015/results?page=2