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Trial · NCT03638128

Open-label Extension of Study 20130173 of Denosumab in Children and Young Adults With Osteogenesis Imperfecta

NCT03638128, Phase 3, Terminated, Amgen; results first posted 2022-12-20

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Open-label Extension of Study 20130173 of Denosumab in Children and Young Adults With Osteogenesis Imperfecta. Trials, record NCT03638128. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03638128

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Trial

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

Title
Open-label Extension of Study 20130173 of Denosumab in Children and Young Adults With Osteogenesis Imperfecta
NCT number
NCT03638128
Status
Terminated
Phases
Phase 3
Enrollment
75 participants, actual
Lead sponsor
Amgen
Conditions
Osteogenesis Imperfecta (OI)
Interventions
Denosumab, Alternative osteoporosis medications
First posted
2018-08-20
Last updated
2022-12-20
Other registries' IDs
eudract:2018-000550-21
Results first posted
2022-12-20

Source ClinicalTrials.gov

Registered outcomes10

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

ListOutcomeTime frameDescription
PrimaryNumber of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestFrom enrollment to end of study, including 24 weeks after last dose of denosumab for participants who received denosumab; the maximum time on study was 24 months.
A Serious Adverse Event is defined as any untoward medical occurrence that met at least 1 of the following serious criteria: * Resulted in death (fatal) * Immediately life-threatening * Required in-patient hospitalization or prolongation of existing hospitalization * Resulted in persistent or significant disability/incapacity * Was a congenital anomaly/birth defect * Other medically important serious event that may have jeopardized the participant or require medical or surgical intervention to prevent 1 of the outcomes listed above. Adverse events of special interest included hypocalcemia, hypersensitivity, bacterial cellulitis, osteonecrosis of the jaw (ONJ), hypercalcemia, and typical osteogenesis imperfecta (OI) femur fractures.
PrimaryNumber of Participants With Anti-denosumab AntibodiesFrom enrollment to end of study, including 24 weeks after last dose of denosumab for participants who received denosumab; the maximum time on study was 24 months
Blood samples were collected (from denosumab treated participants only) for the measurement of anti-denosumab binding antibodies. Samples positive for anti-denosumab binding antibodies were further tested for neutralizing antibodies.
PrimaryNumber of Participants With Clinical Laboratory Toxicities Grade ≥ 3From enrollment to end of study, including 24 weeks after last dose of denosumab for participants who received denosumab; the maximum time on study was 24 months
Laboratory abnormalities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE), Version 4.0. The grades refer to the severity of the finding: Grade 1 = Mild; Grade 2 = Moderate; Grade 3 = Severe or medically significant; Grade 4 = Life-threatening consequences, urgent intervention indicated.
PrimaryNumber of Participants With Clinically Significant Vital Sign FindingsFrom enrollment to end of study, including 24 weeks after last dose of denosumab for participants who received denosumab; the maximum time on study was 24 months
Vital sign measurements included systolic and diastolic blood pressure, heart rate, respiratory rate, and temperature. The investigator assessed vital sign results and determined whether any abnormal changes represented a clinically significant change from the participant's baseline values.
PrimaryNumber of Participants With Metaphyseal Index Z-score Above Age-appropriate Normal RangeBaseline, month 12 and month 24
Anteroposterior radiographs of both knees (unless prohibited by the presence of hardware such as implants) were used to calculate the metaphyseal index Z-score of each knee in participants with open growth plates; the knee selected for assessment during the study was the knee with the higher Z-score at baseline. The metaphyseal index (MI) was calculated by the central imaging vendor as the ratio of femoral width over distal femoral growth plate width, and the Z-score for each participant, relative to the participant's age as: MI Z-score = (participant value - mean)/SD, where mean and standard deviation (SD) are the corresponding values based on a reference population for the participant's age group at the time of the assessment. Metaphyseal index Z-score above age-appropriate normal range is defined as a MI Z-score \> 2.
PrimaryNumber of Participants With Abnormal Molar Eruption of the First or Second Molar Based on Radiological FindingsBaseline, month 12, and month 24
Participants underwent a visual inspection under natural light for the presence of the first and second molars. Participants were referred to a dentist to perform radiographic assessment of the unerupted molar(s) if: * A participant was age 7 to 12 years and appeared to have an unerupted upper or lower first molar (ie, not all 4 first molars were visible/detectable). * A participant was age 13 years or older and appeared to have an unerupted upper or lower (first or) second molar (ie, not all 4 first molars and all 4 second molars were visible/detectable). Abnormal molar eruptions includes the number of participants 7 to 12 years of age with 1st unerupted or partially erupted molars and participants 13 years of age or older with 2nd unerupted or partially erupted molars.
PrimaryPercent Change From Baseline in Mandibular Shaping ParametersBaseline and month 12 and month 24
Lateral cephalogram was performed to enable assessment of mandibular shaping. The lateral cephalogram is a profile X-ray of the skull and soft tissues and is used to assess the relation of the teeth in the jaws, the relation of the jaws to the skull, and the relation of the soft tissues to the teeth and jaws. The following anatomical angles and dimensions were measured to evaluate the correct proportions of the mandible and its position relative to the skull/maxilla: Gonial angle; Sella-Nasion-A Point Angle (SNA angle); Sella-Nasion-B Point Angle (SNB angle); and A Point - Nasion-B Point Angle (ANB Angle).
SecondaryChange From Baseline in Lumbar Spine Bone Mineral Density (BMD) Z-scoreBaseline and months 6, 12, and 24
Bone densitometry assessments of the lumbar spine were performed using dual X-ray absorptiometry (DXA). The Z-score indicates the number of standard deviations away from the mean of an average person of the same age, sex, race, and weight. A Z-score of 0 is equal to the mean of the matched population, negative Z-scores indicate a BMD lower than the mean of the matched population, and positive Z-scores indicate a higher BMD than that of the matched population. A positive change from baseline indicates an improvement in lumbar spine BMD.
SecondaryChange From Baseline in Total Hip BMD Z-scoreBaseline, months 6, 12, and 24
Bone densitometry assessments of the hip were performed using dual X-ray absorptiometry (DXA). The Z-score indicates the number of standard deviations away from the mean of an average person of the same age, sex, race, and weight. A Z-score of 0 is equal to the mean of the matched population, negative Z-scores indicate a BMD lower than the mean of the matched population, and positive Z-scores indicate a higher BMD than that of the matched population. A positive change from baseline indicates an improvement in total hip BMD.
SecondaryChange From Baseline in Femoral Neck BMD Z-scoreBaseline and months 6, 12, and 24
Bone densitometry assessments of the femoral neck were performed using dual X-ray absorptiometry (DXA). The Z-score indicates the number of standard deviations away from the mean of an average person of the same age, sex, race, and weight. A Z-score of 0 is equal to the mean of the matched population, negative Z-scores indicate a BMD lower than the mean of the matched population, and positive Z-scores indicate a higher BMD than that of the matched population. A positive change from baseline indicates an improvement in femoral neck BMD.

Outcomes10

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestFrom enrollment to end of study, including 24 weeks after last dose of denosumab for participants who received denosumab; the maximum time on study was 24 months.The safety analysis set includes all enrolled participants who provided informed consent/assent, had a non-missing enrollment date, and received at least 1 dose of denosumab during Study 20130173.ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With Anti-denosumab AntibodiesFrom enrollment to end of study, including 24 weeks after last dose of denosumab for participants who received denosumab; the maximum time on study was 24 monthsSafety analysis set participants who received at least one dose of denosumab in this study.ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With Clinical Laboratory Toxicities Grade ≥ 3From enrollment to end of study, including 24 weeks after last dose of denosumab for participants who received denosumab; the maximum time on study was 24 monthsSafety analysis setParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With Clinically Significant Vital Sign FindingsFrom enrollment to end of study, including 24 weeks after last dose of denosumab for participants who received denosumab; the maximum time on study was 24 monthsSafety analysis setParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With Metaphyseal Index Z-score Above Age-appropriate Normal RangeBaseline, month 12 and month 24The metaphyseal analysis set includes participants with open growth plates and no hardware preventing accurate calculation of MI at baseline, and X-ray of the knee at baseline and postbaseline.ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With Abnormal Molar Eruption of the First or Second Molar Based on Radiological FindingsBaseline, month 12, and month 24Safety analysis set participants with radiologic assessments at each time point.ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYPercent Change From Baseline in Mandibular Shaping ParametersBaseline and month 12 and month 24Safety analysis set participants with radiologic assessments at baseline and each time pointpercent changeMEAN
SECONDARYChange From Baseline in Lumbar Spine Bone Mineral Density (BMD) Z-scoreBaseline and months 6, 12, and 24
The DXA analysis set includes all participants with baseline and ≥ 1 postbaseline valid DXA assessments for lumbar spine as provided by the central imaging vendor.~BMD endpoints were pre-specified to be analyzed for combined treatment groups.
Z-scoreMEAN
SECONDARYChange From Baseline in Total Hip BMD Z-scoreBaseline, months 6, 12, and 24
The DXA analysis set includes all participants with baseline and ≥ 1 postbaseline valid DXA assessments for the total hip as provided by the central imaging vendor.~BMD endpoints were pre-specified to be analyzed for combined treatment groups.
Z-scoreMEAN
SECONDARYChange From Baseline in Femoral Neck BMD Z-scoreBaseline and months 6, 12, and 24
The DXA analysis set includes all participants with baseline and ≥ 1 postbaseline valid DXA assessments for the femoral neck as provided by the central imaging vendor.~BMD endpoints were pre-specified to be analyzed for combined treatment groups.
Z-scoreMEAN

Results by group83

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

OutcomeGroupCategoryValueSpreadUnits
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestAlternative Medications / ObservationalAny adverse event18Participants
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestDenosumab 1 mg/kg Q6MAny adverse event22Participants
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestDenosumab 1 mg/kg Q3MAny adverse event19Participants
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestAlternative Medications / ObservationalSerious adverse events6Participants
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestDenosumab 1 mg/kg Q6MSerious adverse events5Participants
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestDenosumab 1 mg/kg Q3MSerious adverse events6Participants
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestAlternative Medications / ObservationalAdverse events of special interest5Participants
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestDenosumab 1 mg/kg Q6MAdverse events of special interest5Participants
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestDenosumab 1 mg/kg Q3MAdverse events of special interest9Participants
Number of Participants With Adverse Events, Serious Adverse Events, and Adverse Events of Special InterestAlternative Medications / ObservationalHypocalcemia0Participants

Participant flow9

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDAlternative Medications / Observational21
Overall StudySTARTEDDenosumab 1 mg/kg Q6M27
Overall StudySTARTEDDenosumab 1 mg/kg Q3M27
Overall StudyCOMPLETEDAlternative Medications / Observational5
Overall StudyCOMPLETEDDenosumab 1 mg/kg Q6M8
Overall StudyCOMPLETEDDenosumab 1 mg/kg Q3M1
Overall StudyNOT COMPLETEDAlternative Medications / Observational16
Overall StudyNOT COMPLETEDDenosumab 1 mg/kg Q6M19
Overall StudyNOT COMPLETEDDenosumab 1 mg/kg Q3M26

Adverse events81

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAbdominal pain upperGastrointestinal disordersAlternative Medications / Observational221
otherAbdominal pain upperGastrointestinal disordersDenosumab 1 mg/kg Q6M027
otherAbdominal pain upperGastrointestinal disordersDenosumab 1 mg/kg Q3M027
otherPyrexiaGeneral disordersAlternative Medications / Observational021
otherPyrexiaGeneral disordersDenosumab 1 mg/kg Q6M027
otherPyrexiaGeneral disordersDenosumab 1 mg/kg Q3M227
otherCOVID-19Infections and infestationsAlternative Medications / Observational121
otherCOVID-19Infections and infestationsDenosumab 1 mg/kg Q6M127
otherCOVID-19Infections and infestationsDenosumab 1 mg/kg Q3M227
otherAnkle fractureInjury, poisoning and procedural complicationsAlternative Medications / Observational021

Adverse event totals9

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityAlternative Medications / Observational021
Total, all-cause mortalityDenosumab 1 mg/kg Q6M027
Total, all-cause mortalityDenosumab 1 mg/kg Q3M027
Total, other adverse eventsAlternative Medications / Observational1521
Total, other adverse eventsDenosumab 1 mg/kg Q6M2127
Total, other adverse eventsDenosumab 1 mg/kg Q3M1327
Total, serious adverse eventsAlternative Medications / Observational621
Total, serious adverse eventsDenosumab 1 mg/kg Q6M527
Total, serious adverse eventsDenosumab 1 mg/kg Q3M627

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 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/NCT03638128

GET https://conductscience.org/api/trials/v1/NCT03638128/results?page=2