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

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03638128
Recruitment Status : Recruiting
First Posted : August 20, 2018
Last Update Posted : October 15, 2018
Information provided by (Responsible Party):

Brief Summary:
To evaluate long-term safety of denosumab in subjects with pediatric osteogenesis imperfecta(OI) completing Study 20130173.

Condition or disease Intervention/treatment Phase
Osteogenesis Imperfecta (OI) Drug: Denosumab Phase 3

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 150 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Multicenter, Single-arm Open-label Extensión Study to Assess Long-term Safety and Efficacy of Current or Prior Treatment With Denosumab in Children/Young Adults With Osteogenesis Imperfecta
Actual Study Start Date : July 26, 2018
Estimated Primary Completion Date : September 25, 2023
Estimated Study Completion Date : September 25, 2023

Arm Intervention/treatment
Experimental: Denosumab
60 mg/mL solution containing 1.7 mL administered subcutaneously with a frequency of: day 1, at month 6, month 12, and month 18
Drug: Denosumab
clear, colorless to slightly yellow, preservative free liquid, in single-use 3.0 mL glass vials containing a deliverable dose of 120mg/1.7 mL (70 mg/mL).

Primary Outcome Measures :
  1. Subject incidence of treatment-emergent adverse events. [ Time Frame: 24 Months ]

Secondary Outcome Measures :
  1. Changes in bone mineral density (BMD) of lumbar spine. [ Time Frame: At 12 and 24 months ]
    Changes in bone mineral density (BMD) of lumbar spine assessed by dual X-ray absorptiometry (DXA).

  2. Changes in bone mineral density (BMD) of proximal femur (femoral neck). [ Time Frame: At 12 and 24 Months ]
    Changes in bone mineral density (BMD) of proximal femur (femoral neck) assessed by dual X-ray absorptiometry (DXA).

  3. Incidence of X-ray confirmed long bone fractures. [ Time Frame: At 12 and 24 Months ]
  4. Incidence of X-ray confirmed new vertebral fractures. [ Time Frame: At 12 and 24 Monts ]
  5. Incidence of X-ray confirmed worsening vertebral fractures. [ Time Frame: At 12 and 24 Months ]
  6. Incidence of vertebral fractures. [ Time Frame: At 12 and 24 Months ]
  7. Incidence of nonvertebral fractures. [ Time Frame: At 12 and 24 Months ]
  8. Change in growth velocity. [ Time Frame: At 12 and 24 Months ]
  9. Changes in bone mineral density (BMD) of total hip. [ Time Frame: At 12 and 24 Months ]
    Changes in bone mineral density (BMD) of total hip assessed by dual X-ray absorptiometry (DXA).

Information from the National Library of Medicine

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Ages Eligible for Study:   5 Years to 20 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subject has provided informed consent/assent prior to initiation of any Study 20170534 specific activities/procedures. Subject's legally acceptable representative has provided informed consent when the subject is legally too young to provide informed consent and the subject has provided written assent based on local regulations and/or guidelines prior to any study-specific activities/procedures being initiated.
  • Subject is currently/was enrolled in Study 20130173 and completed the month 36 visit.

Exclusion Criteria:

  • Treatment with any prohibited proscribed medications during Study 20130173.
  • Subjects currently receiving treatment in another investigational device or drug study other than Study 20130173. Other investigational procedures while participating in this study are excluded.
  • Female subject is pregnant or breastfeeding or planning to become pregnant or breastfeed during treatment and for an additional 5 months after the last dose of denosumab. Females of childbearing potential (Tanner Stage greater than or equal to 2) should only be included in the study after a negative highly sensitive urine or serum pregnancy test.
  • Female subjects of childbearing potential unwilling to practice true sexual abstinence (refrain from heterosexual intercourse) or use 1 highly effective method of contraception during treatment and for an additional 5 months after the last dose of investigational product (denosumab). For study treatment with alternative osteoporosis medication/s of investigator's choice, follow contraception guidelines per the specific alternative osteoporosis medication/s selected. For subjects not receiving any investigational product (observation only), no contraception required.
  • History or evidence of any other clinically significant disorder, condition or disease (with the exception of those outlined above) that, in the opinion of the investigator or Amgen physician, if consulted, would pose a risk to subject safety or interfere with the study evaluation, procedures or completion.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03638128

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Contact: Amgen Call Center 866-572-6436

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Research Site Recruiting
Budapest, Hungary, 1094
Sponsors and Collaborators
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Study Director: MD Amgen

Additional Information:
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Responsible Party: Amgen Identifier: NCT03638128     History of Changes
Other Study ID Numbers: 20170534
2018-000550-21 ( EudraCT Number )
First Posted: August 20, 2018    Key Record Dates
Last Update Posted: October 15, 2018
Last Verified: October 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.
Supporting Materials: Study Protocol
Statistical Analysis Plan (SAP)
Informed Consent Form (ICF)
Clinical Study Report (CSR)
Time Frame: Data sharing requests relating to this study will be considered beginning 18 months after the study has ended and either 1) the product and indication have been granted marketing authorization in both the US and Europe or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study.
Access Criteria: Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen study/studies in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors. If not approved, a Data Sharing Independent Review Panel will arbitrate and make the final decision. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the link below.

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No

Keywords provided by Amgen:

Additional relevant MeSH terms:
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Osteogenesis Imperfecta
Bone Diseases, Developmental
Bone Diseases
Musculoskeletal Diseases
Genetic Diseases, Inborn
Collagen Diseases
Connective Tissue Diseases
Bone Density Conservation Agents
Physiological Effects of Drugs