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Trial · NCT03299244

Head-to-Head Study of Etelcalcetide and Cinacalcet in Asian Hemodialysis Patients With Secondary Hyperparathyroidism (SHPT)

NCT03299244, Phase 3, Completed, Amgen; results first posted 2021-04-30

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Head-to-Head Study of Etelcalcetide and Cinacalcet in Asian Hemodialysis Patients With Secondary Hyperparathyroidism (SHPT). Trials, record NCT03299244. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03299244

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Trial

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

Title
Head-to-Head Study of Etelcalcetide and Cinacalcet in Asian Hemodialysis Patients With Secondary Hyperparathyroidism (SHPT)
NCT number
NCT03299244
Status
Completed
Phases
Phase 3
Enrollment
637 participants, actual
Lead sponsor
Amgen
Conditions
Secondary Hyperparathyroidism, Chronic Kidney Disease
Interventions
Etelcalcetide, Cinacalcet
First posted
2017-10-03
Last updated
2021-04-30
Results first posted
2021-04-30

Source ClinicalTrials.gov

Registered outcomes11

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

ListOutcomeTime frameDescription
PrimaryPercentage of Participants With > 30% Reduction From Baseline in Mean Predialysis Intact Parathyroid Hormone During the Efficacy Assessment Phase - Non-inferiority AnalysisBaseline and the efficacy assessment phase (EAP; defined as weeks 20 to 27, inclusive).Predialysis intact parathyroid hormone (iPTH) levels were measured by a central laboratory.
SecondaryPercentage of Participants With > 50% Reduction From Baseline in Mean Predialysis iPTH During the Efficacy Assessment PhaseBaseline and the efficacy assessment phase (weeks 20 to 27, inclusive).Predialysis intact parathyroid hormone levels were measured by a central laboratory.
SecondaryPercentage of Participants With > 30% Reduction From Baseline in Mean Predialysis iPTH During the Efficacy Assessment Phase - Superiority AnalysisBaseline and the efficacy assessment phase (weeks 20 to 27, inclusive)Predialysis intact parathyroid hormone levels were measured by a central laboratory.
SecondaryPercent Change From Baseline in Mean Predialysis Corrected Calcium During the Efficacy Assessment PhaseBaseline and the efficacy assessment phase (weeks 20 - 27, inclusive)Predialysis corrected calcium was measured by a central laboratory.
SecondaryPercentage of Participants With Mean Predialysis Serum Phosphorus ≤ 4.5 mg/dL During the Efficacy Assessment PhaseEfficacy assessment phase (weeks 20 - 27, inclusive)Predialysis serum phosphorus was measured by a central laboratory.
OtherNumber of Participants With cCa < 8.3 mg/dL At Any Time During the StudyFrom first dose of study drug to end of study; up to 26 weeks + 30 days.Corrected calcium was measured by the central laboratory.
OtherNumber of Participants With cCa < 8.0 mg/dL At Any Time During the StudyFrom first dose of study drug to end of study; up to 26 weeks + 30 days.Corrected calcium was measured by the central laboratory.
OtherNumber of Participants With cCa < 7.5 mg/dL At Any Time During the StudyFrom first dose of study drug to end of study; up to 26 weeks + 30 days.Corrected calcium was measured by the central laboratory.
OtherNumber of Participants With Treatment-emergent Symptomatic Hypocalcemia During the StudyFrom first dose of study drug to 30 days after last dose; up to 26 weeks + 30 days.
Common symptoms of hypocalcemia (diminished blood calcium) include paresthesias (fingertips, toes, or perioral), fatigue, muscle cramps, irritability or anxiety, tetany (eg, carpopedal spasm, laryngospasm), Chvostek's sign, seizures, and prolonged QT interval.
OtherNumber of Participants Who Developed Antibodies to EtelcalcetideFrom first dose of study drug to 30 days after last dose; up to 26 weeks + 30 days.Developing antibody incidence is defined as participants who were binding antibody positive post-baseline with a negative or no result at baseline.

Outcomes11

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Participants With > 30% Reduction From Baseline in Mean Predialysis Intact Parathyroid Hormone During the Efficacy Assessment Phase - Non-inferiority AnalysisBaseline and the efficacy assessment phase (EAP; defined as weeks 20 to 27, inclusive).Full analysis set; participants with iPTH data during the EAP.percentage of participantsNUMBER
SECONDARYPercentage of Participants With > 50% Reduction From Baseline in Mean Predialysis iPTH During the Efficacy Assessment PhaseBaseline and the efficacy assessment phase (weeks 20 to 27, inclusive).Full analysis set; participants were considered non-responders if they did not have PTH data during the EAP (non-responder imputation).percentage of participantsNUMBER
SECONDARYPercentage of Participants With > 30% Reduction From Baseline in Mean Predialysis iPTH During the Efficacy Assessment Phase - Superiority AnalysisBaseline and the efficacy assessment phase (weeks 20 to 27, inclusive)Full analysis set; participants were considered non-responders if they did not have PTH data during the EAP.percentage of participantsNUMBER
SECONDARYPercent Change From Baseline in Mean Predialysis Corrected Calcium During the Efficacy Assessment PhaseBaseline and the efficacy assessment phase (weeks 20 - 27, inclusive)Full analysis set; participants with available datapercent changeMEAN
SECONDARYPercentage of Participants With Mean Predialysis Serum Phosphorus ≤ 4.5 mg/dL During the Efficacy Assessment PhaseEfficacy assessment phase (weeks 20 - 27, inclusive)Full analysis set; participants with no phosphorus assessments during the EAP were considered non-responders.percentage of participantsNUMBER
OTHER_PRE_SPECIFIEDNumber of Participants With cCa < 8.3 mg/dL At Any Time During the StudyFrom first dose of study drug to end of study; up to 26 weeks + 30 days.Participants in the safety analysis set with at least 1 post-baseline cCa value.~The safety analysis set includes all randomized participants who received at least 1 dose of study drug.ParticipantsCOUNT_OF_PARTICIPANTS
OTHER_PRE_SPECIFIEDNumber of Participants With cCa < 8.0 mg/dL At Any Time During the StudyFrom first dose of study drug to end of study; up to 26 weeks + 30 days.Participants in the safety analysis set with at least 1 post-baseline cCa value.ParticipantsCOUNT_OF_PARTICIPANTS
OTHER_PRE_SPECIFIEDNumber of Participants With cCa < 7.5 mg/dL At Any Time During the StudyFrom first dose of study drug to end of study; up to 26 weeks + 30 days.Participants in the safety analysis set with at least 1 post-baseline cCa value.ParticipantsCOUNT_OF_PARTICIPANTS
OTHER_PRE_SPECIFIEDNumber of Participants With Treatment-emergent Symptomatic Hypocalcemia During the StudyFrom first dose of study drug to 30 days after last dose; up to 26 weeks + 30 days.Safety analysis setParticipantsCOUNT_OF_PARTICIPANTS
OTHER_PRE_SPECIFIEDNumber of Participants Who Developed Antibodies to EtelcalcetideFrom first dose of study drug to 30 days after last dose; up to 26 weeks + 30 days.Safety analysis set participants assigned to etelcalcetide with a post-baseline antibody result.ParticipantsCOUNT_OF_PARTICIPANTS

Results by group35

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

OutcomeGroupCategoryValueSpreadUnits
Percentage of Participants With > 30% Reduction From Baseline in Mean Predialysis Intact Parathyroid Hormone During the Efficacy Assessment Phase - Non-inferiority AnalysisCinacalcet66.2percentage of participants
Percentage of Participants With > 30% Reduction From Baseline in Mean Predialysis Intact Parathyroid Hormone During the Efficacy Assessment Phase - Non-inferiority AnalysisEtelcalcetide71.9percentage of participants
Percentage of Participants With > 50% Reduction From Baseline in Mean Predialysis iPTH During the Efficacy Assessment PhaseCinacalcet41.6percentage of participants
Percentage of Participants With > 50% Reduction From Baseline in Mean Predialysis iPTH During the Efficacy Assessment PhaseEtelcalcetide59.1percentage of participants
Percentage of Participants With > 30% Reduction From Baseline in Mean Predialysis iPTH During the Efficacy Assessment Phase - Superiority AnalysisCinacalcet58.0percentage of participants
Percentage of Participants With > 30% Reduction From Baseline in Mean Predialysis iPTH During the Efficacy Assessment Phase - Superiority AnalysisEtelcalcetide66.3percentage of participants
Percent Change From Baseline in Mean Predialysis Corrected Calcium During the Efficacy Assessment PhaseCinacalcet-8.00Standard Error 0.50percent change
Percent Change From Baseline in Mean Predialysis Corrected Calcium During the Efficacy Assessment PhaseEtelcalcetide-10.69Standard Error 0.53percent change
Percentage of Participants With Mean Predialysis Serum Phosphorus ≤ 4.5 mg/dL During the Efficacy Assessment PhaseCinacalcet26.2percentage of participants
Percentage of Participants With Mean Predialysis Serum Phosphorus ≤ 4.5 mg/dL During the Efficacy Assessment PhaseEtelcalcetide29.1percentage of participants

Participant flow8

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDCinacalcet317
Overall StudySTARTEDEtelcalcetide320
Overall StudyReceived TreatmentCinacalcet315
Overall StudyReceived TreatmentEtelcalcetide318
Overall StudyCOMPLETEDCinacalcet270
Overall StudyCOMPLETEDEtelcalcetide282
Overall StudyNOT COMPLETEDCinacalcet47
Overall StudyNOT COMPLETEDEtelcalcetide38

Adverse events262

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAbdominal discomfortGastrointestinal disordersCinacalcet17315
otherAbdominal discomfortGastrointestinal disordersEtelcalcetide15318
otherConstipationGastrointestinal disordersCinacalcet12315
otherConstipationGastrointestinal disordersEtelcalcetide18318
otherDiarrhoeaGastrointestinal disordersCinacalcet14315
otherDiarrhoeaGastrointestinal disordersEtelcalcetide19318
otherNauseaGastrointestinal disordersCinacalcet45315
otherNauseaGastrointestinal disordersEtelcalcetide35318
otherVomitingGastrointestinal disordersCinacalcet47315
otherVomitingGastrointestinal disordersEtelcalcetide30318

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityCinacalcet9317
Total, all-cause mortalityEtelcalcetide4320
Total, other adverse eventsCinacalcet293315
Total, other adverse eventsEtelcalcetide294318
Total, serious adverse eventsCinacalcet61315
Total, serious adverse eventsEtelcalcetide53318

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

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 comparisons6

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

ComparisonSource
Cinacalcet vs Etelcalcetide: Number of Participants With cCa < 7.5 mg/dL At Any Time During the StudyTrial comparisons
Cinacalcet vs Etelcalcetide: Number of Participants With Treatment-emergent Symptomatic Hypocalcemia During the StudyTrial comparisons
Cinacalcet vs Etelcalcetide: Number of Participants With cCa < 8.0 mg/dL At Any Time During the StudyTrial comparisons
Cinacalcet vs Etelcalcetide: deaths from any causeTrial comparisons
Cinacalcet vs Etelcalcetide: Number of Participants With cCa < 8.3 mg/dL At Any Time During the StudyTrial comparisons
Cinacalcet vs Etelcalcetide: 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/NCT03299244

GET https://conductscience.org/api/trials/v1/NCT03299244/results?page=2