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Trial · NCT04545554

Study to Evaluate Romosozumab in Children and Adolescents With Osteogenesis Imperfecta

NCT04545554, Phase 1, Completed, Amgen; results first posted 2024-04-15

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Study to Evaluate Romosozumab in Children and Adolescents With Osteogenesis Imperfecta. Trials, record NCT04545554. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04545554

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Trial

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

Title
Study to Evaluate Romosozumab in Children and Adolescents With Osteogenesis Imperfecta
NCT number
NCT04545554
Status
Completed
Phases
Phase 1
Enrollment
25 participants, actual
Lead sponsor
Amgen
Conditions
Osteogenesis Imperfecta
Interventions
Romosozumab, Calcium, Vitamin D
First posted
2020-09-11
Last updated
2024-04-15
Other registries' IDs
eudract:2017-004972-74
Results first posted
2024-04-15

Source ClinicalTrials.gov

Registered outcomes14

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

ListOutcomeTime frameDescription
PrimaryMaximum Observed Serum Concentration (Cmax) of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, 85, 113, and 169 (end of study); pre-specified PK analysis took place on Days 1 and 57Mean Cmax values following Days 1 and 57 are presented.
PrimaryTime to Cmax (Tmax) of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, 85, 113, and 169 (end of study); pre-specified PK analysis took place on Days 1 and 57Median tmax values following Days 1 and 57 are presented.
PrimaryArea Under the Serum Concentration Time Curve (AUC) From Time 0 to Day 28 (AUC[0-28]) of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, and 85; pre-specified PK analysis took place on Days 1 and 57Mean AUC(0-28) values following Days 1 and 57 are presented.
PrimaryAccumulation Ratio of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, and 85; pre-specified PK analysis took place on Days 1 and 57The accumulation ratio was calculated as AUC(0-28) at Day 57/AUC(0-28) at Day 1. Mean accumulation ratio values based on analysis at Days 1 and 57 are presented, as pre-specified.
PrimaryTerminal Half-life of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, 85, 113, and 169 (end of study); pre-specified PK analysis took place on Day 57Median terminal half-life values at Day 57 are presented.
SecondaryNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Day 1 to end of study (up to Day 169); median duration on study was 5.55 months
TEAEs were adverse events (AEs) that started on or after first dose of investigational product up to the end of study (up to Day 169). Any clinically significant changes in vital signs, electrocardiogram parameters, physical exam findings, and clinical laboratory parameters were reported as TEAEs. Injection site reactions were events of interest (EOI) for this study.
SecondaryNumber of Participants With Changes From Baseline in Cranial Nerve VII Examination Findings at Day 57, Day 85, and Day 169Baseline (Day 1), Day 57, Day 85, and Day 169
Facial nerve (cranial nerve VII) function was assessed clinically by facial symmetry inspection at rest, followed by assessment of the symmetry of specific facial movements: raising eyebrows, closing the eyes, blowing out the cheeks, smiling, pursing and closing the lips. Results of the cranial nerve examination were classed as 0 = Normal; 1 = Abnormal not clinically significant; and 2 = Abnormal clinically significant. An increase from baseline indicates an increase in abnormal clinical findings on the cranial nerve VII examination.
SecondaryNumber of Participants With Anti-romosozumab AntibodiesBlood samples for anti-romosozumab antibodies were taken Day 1, Day 15, Day 29, Day 85, and Day 169
Treatment-boosted anti-romosozumab antibody was defined as binding antibody positive at baseline with a \>4 x increase in magnitude post-baseline. Transient results were defined as negative results at the participant's last time point tested within the study period.
SecondaryPercentage Change From Baseline in Serum Concentrations of Serum Type 1 Collagen C-Telopeptide (CTX)Blood samples were taken Days 1 (baseline), 8, 15, 29, 57, 64, 71, 85, 113, and 169Serum concentrations of the bone turnover marker CTX were determined at pre-specified time points.
SecondaryPercentage Change From Baseline in Serum Concentrations of Procollagen Type 1 N-terminal Propeptide (P1NP)Blood samples were taken Days 1 (baseline), 8, 15, 29, 57, 64, 71, 85, 113, and 169Serum concentrations of the bone turnover marker P1NP were determined at pre-specified time points.

Outcomes14

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYMaximum Observed Serum Concentration (Cmax) of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, 85, 113, and 169 (end of study); pre-specified PK analysis took place on Days 1 and 57Pharmacokinetic (PK) Analysis Set: all participants for whom at least 1 PK parameter or endpoint could be adequately tested.μg/mLMEAN
PRIMARYTime to Cmax (Tmax) of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, 85, 113, and 169 (end of study); pre-specified PK analysis took place on Days 1 and 57PK Analysis Set: all participants for whom at least 1 PK parameter or endpoint could be adequately tested.dayMEDIAN
PRIMARYArea Under the Serum Concentration Time Curve (AUC) From Time 0 to Day 28 (AUC[0-28]) of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, and 85; pre-specified PK analysis took place on Days 1 and 57PK Analysis Set: all participants for whom at least 1 PK parameter or endpoint could be adequately tested.day*μg/mLMEAN
PRIMARYAccumulation Ratio of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, and 85; pre-specified PK analysis took place on Days 1 and 57PK Analysis Set: all participants for whom at least 1 PK parameter or endpoint could be adequately tested.ratioMEAN
PRIMARYTerminal Half-life of RomosozumabSingle blood samples were taken on days 1, 8, 15, 29, 57, 64, 71, 85, 113, and 169 (end of study); pre-specified PK analysis took place on Day 57PK Analysis Set: all participants for whom at least 1 PK parameter or endpoint could be adequately tested. Data is presented for participants with evaluable data.dayMEDIAN
SECONDARYNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Day 1 to end of study (up to Day 169); median duration on study was 5.55 monthsSafety Analysis Set: all participants enrolled in the study who received at least 1 dose of investigational product.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Changes From Baseline in Cranial Nerve VII Examination Findings at Day 57, Day 85, and Day 169Baseline (Day 1), Day 57, Day 85, and Day 169Safety Analysis Set: all participants enrolled in the study who received at least 1 dose of investigational product. Participants with data available at each time point are presented.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Anti-romosozumab AntibodiesBlood samples for anti-romosozumab antibodies were taken Day 1, Day 15, Day 29, Day 85, and Day 169Safety Analysis Set: all participants enrolled in the study who received at least 1 dose of investigational product.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYPercentage Change From Baseline in Serum Concentrations of Serum Type 1 Collagen C-Telopeptide (CTX)Blood samples were taken Days 1 (baseline), 8, 15, 29, 57, 64, 71, 85, 113, and 169PD Analysis Set: all participants for whom at least 1 PD parameter or endpoint could be adequately estimated. Participants with data available at each time point are presented.percentage changeMEAN
SECONDARYPercentage Change From Baseline in Serum Concentrations of Procollagen Type 1 N-terminal Propeptide (P1NP)Blood samples were taken Days 1 (baseline), 8, 15, 29, 57, 64, 71, 85, 113, and 169PD Analysis Set: all participants for whom at least 1 PD parameter or endpoint could be adequately estimated. Participants with data available at each time point are presented.percentage changeMEAN

Results by group489

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

OutcomeGroupCategoryValueSpreadUnits
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 1: Romosozumab Dose A (12 to < 18 Years of Age)Day 12.64Standard Deviation 1.06μg/mL
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 2: Romosozumab Dose A (5 to < 12 Years of Age)Day 11.74Standard Deviation 0.825μg/mL
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 3: Romosozumab Dose B (12 to < 18 Years of Age)Day 113.8Standard Deviation 6.32μg/mL
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 4: Romosozumab Dose B (5 to < 12 Years of Age)Day 110.3Standard Deviation 1.70μg/mL
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 5: Romosozumab Dose C (12 to < 18 Years of Age)Day 125.7Standard Deviation 3.02μg/mL
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 6: Romosozumab Dose C (5 to < 12 Years of Age)Day 121.3Standard Deviation 6.45μg/mL
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 1: Romosozumab Dose A (12 to < 18 Years of Age)Day 572.43Standard Deviation 1.36μg/mL
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 2: Romosozumab Dose A (5 to < 12 Years of Age)Day 575.55Standard Deviation 2.11μg/mL
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 3: Romosozumab Dose B (12 to < 18 Years of Age)Day 5712.8Standard Deviation 6.31μg/mL
Maximum Observed Serum Concentration (Cmax) of RomosozumabCohort 4: Romosozumab Dose B (5 to < 12 Years of Age)Day 579.14Standard Deviation 7.50μg/mL

Participant flow30

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDCohort 1: Romosozumab Dose A (12 to < 18 Years of Age)4
Overall StudySTARTEDCohort 2: Romosozumab Dose A (5 to < 12 Years of Age)4
Overall StudySTARTEDCohort 3: Romosozumab Dose B (12 to < 18 Years of Age)4
Overall StudySTARTEDCohort 4: Romosozumab Dose B (5 to < 12 Years of Age)5
Overall StudySTARTEDCohort 5: Romosozumab Dose C (12 to < 18 Years of Age)4
Overall StudySTARTEDCohort 6: Romosozumab Dose C (5 to < 12 Years of Age)4
Overall StudyReceived at Least 1 Dose RomosozumabCohort 1: Romosozumab Dose A (12 to < 18 Years of Age)4
Overall StudyReceived at Least 1 Dose RomosozumabCohort 2: Romosozumab Dose A (5 to < 12 Years of Age)4
Overall StudyReceived at Least 1 Dose RomosozumabCohort 3: Romosozumab Dose B (12 to < 18 Years of Age)4
Overall StudyReceived at Least 1 Dose RomosozumabCohort 4: Romosozumab Dose B (5 to < 12 Years of Age)5

Adverse events216

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherOcular hyperaemiaEye disordersCohort 1: Romosozumab Dose A (12 to < 18 Years of Age)04
otherOcular hyperaemiaEye disordersCohort 2: Romosozumab Dose A (5 to < 12 Years of Age)04
otherOcular hyperaemiaEye disordersCohort 3: Romosozumab Dose B (12 to < 18 Years of Age)04
otherOcular hyperaemiaEye disordersCohort 4: Romosozumab Dose B (5 to < 12 Years of Age)15
otherOcular hyperaemiaEye disordersCohort 5: Romosozumab Dose C (12 to < 18 Years of Age)04
otherOcular hyperaemiaEye disordersCohort 6: Romosozumab Dose C (5 to < 12 Years of Age)04
otherAbdominal painGastrointestinal disordersCohort 1: Romosozumab Dose A (12 to < 18 Years of Age)04
otherAbdominal painGastrointestinal disordersCohort 2: Romosozumab Dose A (5 to < 12 Years of Age)04
otherAbdominal painGastrointestinal disordersCohort 3: Romosozumab Dose B (12 to < 18 Years of Age)04
otherAbdominal painGastrointestinal disordersCohort 4: Romosozumab Dose B (5 to < 12 Years of Age)05

Adverse event totals18

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityCohort 1: Romosozumab Dose A (12 to < 18 Years of Age)04
Total, all-cause mortalityCohort 2: Romosozumab Dose A (5 to < 12 Years of Age)04
Total, all-cause mortalityCohort 3: Romosozumab Dose B (12 to < 18 Years of Age)04
Total, all-cause mortalityCohort 4: Romosozumab Dose B (5 to < 12 Years of Age)05
Total, all-cause mortalityCohort 5: Romosozumab Dose C (12 to < 18 Years of Age)04
Total, all-cause mortalityCohort 6: Romosozumab Dose C (5 to < 12 Years of Age)04
Total, other adverse eventsCohort 1: Romosozumab Dose A (12 to < 18 Years of Age)14
Total, other adverse eventsCohort 2: Romosozumab Dose A (5 to < 12 Years of Age)04
Total, other adverse eventsCohort 3: Romosozumab Dose B (12 to < 18 Years of Age)24
Total, other adverse eventsCohort 4: Romosozumab Dose B (5 to < 12 Years of Age)45

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
38261781DERIVEDPubMed
42470570DERIVEDPubMed

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 comparisons0

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

None in this release.

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/NCT04545554

GET https://conductscience.org/api/trials/v1/NCT04545554/results?page=2