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NCT00436748

Study to Assess Darbepoetin Alfa Dosing for the Correction of Anemia in Pediatric Patients With Chronic Kidney Disease

Terminated Phase 3 Results posted Last updated 29 November 2022
What this trial tests

Phase 3 trial testing Darbepoetin Alfa in Anemia in 116 participants. Terminated before completion.

Timeline
16 September 2008
Primary endpoint
3 March 2014
3 March 2014

Quick facts

Lead sponsorAmgen
PhasePhase 3
StatusTerminated
Study typeINTERVENTIONAL
Allocationrandomized
Designparallel
Maskingtriple
Primary purposetreatment
Enrollment116
Start date16 September 2008
Primary completion3 March 2014
Estimated completion3 March 2014
Sites67 locations across Slovakia, Russia, Belgium, United Kingdom, Poland, Mexico, Puerto Rico, Lithuania

Drugs / interventions tested

Conditions studied

Sponsor

Amgen — full company profile →

Who can join

Adults 1 to 18, any sex, with Anemia or Chronic Kidney Disease. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Proportion of Participants Achieving Hemoglobin ≥ 10.0 g/dL Primary · 24 weeks

The proportion of participants achieving hemoglobin ≥ 10.0 g/dL (the correction proportion) was calculated as the number of participants achieving a hemoglobin ≥ 10.0 g/dL at any time point during the study when administered de novo darbepoetin alfa without receiving any red blood cell transfusion after randomization and within 90 days before the achievement, divided by the number of participants in the efficacy analysis set.

GroupValue95% CI
Darbepoetin Alfa QW0.9830.908 – 1.000
Darbepoetin Alfa Q2W0.8390.717 – 0.924
Time to First Hemoglobin Value ≥ 10.0 g/dL Secondary · 24 weeks

The time from study Day 1 to the day a participant first achieved hemoglobin ≥ 10.0 g/dL for participants who achieved hemoglobin ≥ 10.0 g/dL.

GroupValue95% CI
Darbepoetin Alfa QW24.015.0 – 50.0
Darbepoetin Alfa Q2W22.014.0 – 41.0
Hemoglobin Concentration Over Time Secondary · Baseline and Weeks 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25.
Baseline (n=58, 56)
GroupValue95% CI
Darbepoetin Alfa QW8.59± 0.84
Darbepoetin Alfa Q2W8.73± 0.84
Week 1 (n=53, 50)
GroupValue95% CI
Darbepoetin Alfa QW8.64± 0.90
Darbepoetin Alfa Q2W8.65± 0.95
Week 2 (n=52, 52)
GroupValue95% CI
Darbepoetin Alfa QW8.74± 1.09
Darbepoetin Alfa Q2W8.96± 1.20
Week 3 (n=51, 55)
GroupValue95% CI
Darbepoetin Alfa QW9.28± 1.27
Darbepoetin Alfa Q2W9.09± 1.27
Week 4 (n=53, 53)
GroupValue95% CI
Darbepoetin Alfa QW9.79± 1.30
Darbepoetin Alfa Q2W9.55± 1.23
Week 5 (n=53, 52)
GroupValue95% CI
Darbepoetin Alfa QW10.18± 1.29
Darbepoetin Alfa Q2W9.87± 1.32
Week 6 (n=54, 50)
GroupValue95% CI
Darbepoetin Alfa QW10.54± 1.43
Darbepoetin Alfa Q2W10.19± 1.33
Week 7 (n=52, 48)
GroupValue95% CI
Darbepoetin Alfa QW10.96± 1.53
Darbepoetin Alfa Q2W10.17± 1.25
Weight-adjusted Darbepoetin Alfa Dose at Time of Achieving First Hemoglobin ≥ 10.0 g/dL Secondary · 24 weeks

The darbepoetin alfa dose at the time a participant achieved a first hemoglobin level ≥ 10.0 g/dL, divided by the participant's weight measured at the closest study week prior to the dosing, post dialysis.

GroupValue95% CI
Darbepoetin Alfa QW0.48± 0.24
Darbepoetin Alfa Q2W0.76± 0.21
Darbepoetin Alfa Weight-Adjusted Dose Over Time Secondary · Day 1 (initial dose) and Weeks 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25.

Arithmetic means are provided; Withheld doses are counted as 0 μg.

Initial Dose (n=58, 56)
GroupValue95% CI
Darbepoetin Alfa QW0.45± 0.07
Darbepoetin Alfa Q2W0.73± 0.13
Week 2 (n=55, 0)
GroupValue95% CI
Darbepoetin Alfa QW0.45± 0.07
Darbepoetin Alfa Q2WNA± NA
Week 3 (n=55, 52)
GroupValue95% CI
Darbepoetin Alfa QW0.44± 0.07
Darbepoetin Alfa Q2W0.72± 0.11
Week 4 (n=54, 0)
GroupValue95% CI
Darbepoetin Alfa QW0.40± 0.11
Darbepoetin Alfa Q2WNA± NA
Week 5 (n=54, 51)
GroupValue95% CI
Darbepoetin Alfa QW0.43± 0.26
Darbepoetin Alfa Q2W0.72± 0.25
Week 6 (n=54, 0)
GroupValue95% CI
Darbepoetin Alfa QW0.42± 0.29
Darbepoetin Alfa Q2WNA± NA
Week 7 (n=54, 51)
GroupValue95% CI
Darbepoetin Alfa QW0.38± 0.25
Darbepoetin Alfa Q2W0.70± 0.28
Week 8 (n=53, 1)
GroupValue95% CI
Darbepoetin Alfa QW0.34± 0.24
Darbepoetin Alfa Q2W0.00± NA
Change From Baseline at Week 13 and Week 25 in Parent-reported Pediatric Quality of Life Inventory (PedsQL) Scores Secondary · Baseline, Week 13 and Week 25 (or end of study visit if earlier than Week 25)

The PedsQL is a health-related quality of life (HRQOL) questionnaire that can be used to measure quality of life in children ≥ 2 years old. The 23-item PedsQL 4.0 includes physical functioning (8 items), emotional functioning (5 items), social functioning (5 items), and school functioning (5 items). Separate questionnaires for ages 2 to 4 (toddler), 5-7, 8-12, and 13-18 years are used for parent proxy-reporting, which assesses parents' perceptions of their child's HRQOL. The instructions ask how much of a problem each item has been during the past 1 month; each item is answered on a 5-point sc

Week 13 Total Score (n=45, 46)
GroupValue95% CI
Darbepoetin Alfa QW4.50± 2.19
Darbepoetin Alfa Q2W0.58± 2.43
Week 13 Psychosocial composite score (n=45, 46)
GroupValue95% CI
Darbepoetin Alfa QW5.12± 2.16
Darbepoetin Alfa Q2W-0.41± 2.57
Week 13 Physical function score (n=45, 46)
GroupValue95% CI
Darbepoetin Alfa QW3.61± 3.20
Darbepoetin Alfa Q2W2.31± 3.35
Week 13 Emotional function score (n=45, 46)
GroupValue95% CI
Darbepoetin Alfa QW1.00± 3.00
Darbepoetin Alfa Q2W-3.89± 2.74
Week 13 Social function score (n=45, 46)
GroupValue95% CI
Darbepoetin Alfa QW6.89± 3.54
Darbepoetin Alfa Q2W0.76± 3.56
Week 13 School function score (n=42, 42)
GroupValue95% CI
Darbepoetin Alfa QW7.30± 2.47
Darbepoetin Alfa Q2W4.17± 3.63
Week 25 Total Score (n=38, 41)
GroupValue95% CI
Darbepoetin Alfa QW1.90± 2.06
Darbepoetin Alfa Q2W0.65± 2.66
Week 25 Psychosocial composite score (n=38, 41)
GroupValue95% CI
Darbepoetin Alfa QW2.52± 1.83
Darbepoetin Alfa Q2W-1.84± 3.13
Change From Baseline at Week 13 and Week 25 in Child Self-reported Pediatric Quality of Life Inventory (PedsQL) Scores Secondary · Baseline, Week 13 and Week 25 (or end of study visit if earlier than Week 25)

The PedsQL child self-reported questionnaire was used in children \> 5 years old. The 23-item PedsQL 4.0 includes physical functioning (8 items), emotional functioning (5 items), social functioning (5 items), and school functioning (5 items). Separate questionnaires for ages 5-7, 8-12, and 13-18 years was used for child self-reporting. The instructions asked how much of a problem each item has been during the past 1 month; each item is answered on a 5-point scale for ages 8 to 18 (0 = never a problem; 1 = almost never a problem; 2 = sometimes a problem; 3 = often a problem; 4 = almost always a

Week 13 Total Score (n=46, 46)
GroupValue95% CI
Darbepoetin Alfa QW2.94± 1.70
Darbepoetin Alfa Q2W-1.23± 2.04
Week 13 Psychosocial composite score (n=46, 46)
GroupValue95% CI
Darbepoetin Alfa QW2.59± 1.92
Darbepoetin Alfa Q2W-0.45± 2.23
Week 13 Physical function score (n=46, 46)
GroupValue95% CI
Darbepoetin Alfa QW3.78± 2.43
Darbepoetin Alfa Q2W-2.79± 2.59
Week 13 Emotional function score (n=46, 46)
GroupValue95% CI
Darbepoetin Alfa QW0.43± 2.52
Darbepoetin Alfa Q2W-0.76± 2.79
Week 13 Social function score (n=46, 46)
GroupValue95% CI
Darbepoetin Alfa QW3.26± 2.93
Darbepoetin Alfa Q2W-2.28± 3.02
Week 13 School function score (n=45, 43)
GroupValue95% CI
Darbepoetin Alfa QW2.89± 2.98
Darbepoetin Alfa Q2W2.44± 3.83
Week 25 Total Score (n=40, 42)
GroupValue95% CI
Darbepoetin Alfa QW5.00± 1.75
Darbepoetin Alfa Q2W2.58± 1.78
Week 25 Psychosocial composite score (n=40, 42)
GroupValue95% CI
Darbepoetin Alfa QW3.81± 1.97
Darbepoetin Alfa Q2W3.53± 2.01
Number of Participants With Treatment-emergent Adverse Events Secondary · 25 weeks

A serious adverse event (SAE) is defined as an adverse event that meets at least one of the following serious criteria: • is fatal, • is life threatening, • requires in-patient hospitalization or prolongation of existing hospitalization, • results in persistent or significant disability/incapacity, • is a congenital anomaly/birth defect, and/or • other significant medical hazard. The investigator assessed whether the adverse event was related to the investigational product (IP). Events of interest included hypertension, ischemic heart disease, cardiac failure, cerebrovascular disorders, convul

All adverse events
GroupValue95% CI
Darbepoetin Alfa QW48
Darbepoetin Alfa Q2W50
Serious adverse events
GroupValue95% CI
Darbepoetin Alfa QW16
Darbepoetin Alfa Q2W14
Leading to discontinuation of IP
GroupValue95% CI
Darbepoetin Alfa QW0
Darbepoetin Alfa Q2W2
Leading to discontinuation from study
GroupValue95% CI
Darbepoetin Alfa QW0
Darbepoetin Alfa Q2W2
Fatal adverse events
GroupValue95% CI
Darbepoetin Alfa QW0
Darbepoetin Alfa Q2W0
Events of interest
GroupValue95% CI
Darbepoetin Alfa QW18
Darbepoetin Alfa Q2W20
Treatment-related adverse events (TRAE)
GroupValue95% CI
Darbepoetin Alfa QW14
Darbepoetin Alfa Q2W16
Treatment-related serious adverse events
GroupValue95% CI
Darbepoetin Alfa QW1
Darbepoetin Alfa Q2W2
Hemoglobin Serial Rate of Change (ROC) Over Time Secondary · Weeks 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25.

Calculated using the serial method as the change in hemoglobin from the previous non-missing hemoglobin level divided by number of days in between, and then multiplied by 7.

Week 2 (n=49, 47)
GroupValue95% CI
Darbepoetin Alfa QW0.263-0.90 – 1.17
Darbepoetin Alfa Q2W0.350-1.82 – 2.10
Week 3 (n=50, 53)
GroupValue95% CI
Darbepoetin Alfa QW0.530-1.00 – 1.70
Darbepoetin Alfa Q2W0.200-1.23 – 1.40
Week 4 (n=53, 52)
GroupValue95% CI
Darbepoetin Alfa QW0.560-0.40 – 2.20
Darbepoetin Alfa Q2W0.513-1.60 – 3.33
Week 5 (n=53, 49)
GroupValue95% CI
Darbepoetin Alfa QW0.438-2.00 – 2.00
Darbepoetin Alfa Q2W0.117-3.92 – 1.52
Week 6 (n=54, 48)
GroupValue95% CI
Darbepoetin Alfa QW0.400-2.50 – 2.40
Darbepoetin Alfa Q2W0.231-1.05 – 2.40
Week 7 (n=51, 45)
GroupValue95% CI
Darbepoetin Alfa QW0.200-1.20 – 2.90
Darbepoetin Alfa Q2W0.100-1.75 – 2.57
Week 8 (n=52, 49)
GroupValue95% CI
Darbepoetin Alfa QW0.163-1.98 – 1.63
Darbepoetin Alfa Q2W0.300-2.71 – 1.17
Week 9 (n=49, 50)
GroupValue95% CI
Darbepoetin Alfa QW0.100-2.80 – 1.40
Darbepoetin Alfa Q2W0.089-1.30 – 2.20
Number of Participants With Hemoglobin > 12.0, > 13.0, and > 14.0 g/dL During the Study Secondary · 25 weeks
Number of participants with hemoglobin > 12.0 g/dL
GroupValue95% CI
Darbepoetin Alfa QW44
Darbepoetin Alfa Q2W33
Number of participants with hemoglobin > 13.0 g/dL
GroupValue95% CI
Darbepoetin Alfa QW24
Darbepoetin Alfa Q2W6
Number of participants with hemoglobin > 14.0 g/dL
GroupValue95% CI
Darbepoetin Alfa QW6
Darbepoetin Alfa Q2W2
Maximum Increase in Hemoglobin Over Any 2 Week Period Secondary · 25 weeks

The maximum increase between any 2 non-missing hemoglobin measurements over any 2-week period from Day 1.

GroupValue95% CI
Darbepoetin Alfa QW2.06± 0.88
Darbepoetin Alfa Q2W1.61± 0.76
Change From Baseline in Systolic Blood Pressure Over Time Secondary · Baseline and Weeks 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25.
Week 2 (n=55, 54)
GroupValue95% CI
Darbepoetin Alfa QW1.7-0.90 – 1.17
Darbepoetin Alfa Q2W-3.9-1.82 – 2.10
Week 3 (n=55, 56)
GroupValue95% CI
Darbepoetin Alfa QW1.1-1.00 – 1.70
Darbepoetin Alfa Q2W0.0-1.23 – 1.40
Week 4 (n=55, 54)
GroupValue95% CI
Darbepoetin Alfa QW1.3-0.40 – 2.20
Darbepoetin Alfa Q2W1.2-1.60 – 3.33
Week 5 (n=55, 52)
GroupValue95% CI
Darbepoetin Alfa QW1.1-2.00 – 2.00
Darbepoetin Alfa Q2W-3.0-3.92 – 1.52
Week 6 (n=54, 51)
GroupValue95% CI
Darbepoetin Alfa QW0.2-2.50 – 2.40
Darbepoetin Alfa Q2W-2.9-1.05 – 2.40
Week 7 (n=54, 52)
GroupValue95% CI
Darbepoetin Alfa QW-1.0-1.20 – 2.90
Darbepoetin Alfa Q2W-3.7-1.75 – 2.57
Week 8 (n=55, 52)
GroupValue95% CI
Darbepoetin Alfa QW0.5-1.98 – 1.63
Darbepoetin Alfa Q2W-2.7-2.71 – 1.17
Week 9 (n=54, 52)
GroupValue95% CI
Darbepoetin Alfa QW1.0-2.80 – 1.40
Darbepoetin Alfa Q2W-3.1-1.30 – 2.20

Adverse events — posted to ClinicalTrials.gov

Time frame: 25 weeks. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Darbepoetin Alfa QW
Serious: 16/58 (28%)
Deaths:
Darbepoetin Alfa Q2W
Serious: 14/56 (25%)
Deaths:

Serious adverse events (52 terms)

ReactionSystemDarbepoetin Alfa QWDarbepoetin Alfa Q2W
HyperkalaemiaMetabolism and nutrition disorders
HypertensionVascular disorders
Abdominal painGastrointestinal disorders
PeritonitisInfections and infestations
HeadacheNervous system disorders
Renal impairmentRenal and urinary disorders
HypotensionVascular disorders
AnaemiaBlood and lymphatic system disorders
Histiocytosis haematophagicBlood and lymphatic system disorders
TachycardiaCardiac disorders
TinnitusEar and labyrinth disorders
VomitingGastrointestinal disorders
Device failureGeneral disorders
Device malfunctionGeneral disorders
Local swellingGeneral disorders
Medical device complicationGeneral disorders
OedemaGeneral disorders
PyrexiaGeneral disorders
AppendicitisInfections and infestations
BronchitisInfections and infestations
Catheter site infectionInfections and infestations
CellulitisInfections and infestations
Clostridium difficile colitisInfections and infestations
Device related infectionInfections and infestations
Device related sepsisInfections and infestations
Other adverse events (32 terms — click to expand)

ReactionSystemDarbepoetin Alfa QWDarbepoetin Alfa Q2W
VomitingGastrointestinal disorders
PyrexiaGeneral disorders
HeadacheNervous system disorders
HypertensionVascular disorders
Upper respiratory tract infectionInfections and infestations
CoughRespiratory, thoracic and mediastinal disorders
Abdominal painGastrointestinal disorders
NasopharyngitisInfections and infestations
NauseaGastrointestinal disorders
FatigueGeneral disorders
PharyngitisInfections and infestations
Muscle spasmsMusculoskeletal and connective tissue disorders
ConstipationGastrointestinal disorders
DiarrhoeaGastrointestinal disorders
Catheter site infectionInfections and infestations
Ear infectionInfections and infestations
Urinary tract infectionInfections and infestations
Pain in extremityMusculoskeletal and connective tissue disorders
Nasal congestionRespiratory, thoracic and mediastinal disorders
PruritusSkin and subcutaneous tissue disorders
Abdominal pain upperGastrointestinal disorders
Catheter site painGeneral disorders
Injection site painGeneral disorders
Medical device complicationGeneral disorders
ContusionInjury, poisoning and procedural complications
Procedural hypotensionInjury, poisoning and procedural complications
Blood pressure increasedInvestigations
Back painMusculoskeletal and connective tissue disorders
DizzinessNervous system disorders
Oropharyngeal painRespiratory, thoracic and mediastinal disorders
RashSkin and subcutaneous tissue disorders
HypotensionVascular disorders

Most-reported serious reactions: Hyperkalaemia, Hypertension, Abdominal pain, Peritonitis, Headache, Renal impairment, Hypotension, Anaemia.

Data from ClinicalTrials.gov NCT00436748 adverse events section.

Sponsor's own description

The primary objectives of this study are the following: 1. To test if the proportion of participants achieving a hemoglobin value greater than or equal to 10.0 g/dL at any time point after the first dose during the study is greater than 0.8 when administered de novo darbepoetin alfa once a week (QW) for treatment of anemia in pediatric patients with chronic kidney disease receiving and not receiving dialysis, and 2. To test if the proportion of participants achieving a hemoglobin value greater than or equal to 10.0 g/dL at any time point after the first dose during the study is greater than 0.8 when administered de novo darbepoetin alfa every 2 weeks (Q2W) for treatment of anemia in pediatric patients with chronic kidney disease receiving and not receiving dialysis.

Publications & conference data

2 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Darbepoetin for the anaemia of chronic kidney disease.
    Palmer SC, Saglimbene V, Craig JC, Navaneethan SD, et al · · 2014 · cited 21× · PMID 24683046 · DOI 10.1002/14651858.cd009297.pub2
  2. Frequency of administration of erythropoiesis-stimulating agents for the anaemia of end-stage kidney disease in dialysis patients.
    Hahn D, Cody JD, Hodson EM. · · 2014 · cited 7× · PMID 24872328 · DOI 10.1002/14651858.cd003895.pub3

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Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT00436748.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing