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Romosozumab (AMG 785) in Postmenopausal Women With Low Bone Mineral Density

Primary Purpose

Low Bone Mineral Density, Postmenopausal Osteoporosis

Status
Completed
Phase
Phase 2
Locations
Study Type
Interventional
Intervention
Placebo to Romosozumab
Alendronate
Teriparatide
Romosozumab
Denosumab
Placebo to Denosumab
Zoledronic acid
Sponsored by
Amgen
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Low Bone Mineral Density

Eligibility Criteria

55 Years - 85 Years (Adult, Older Adult)FemaleDoes not accept healthy volunteers

Inclusion Criteria:

  • Ambulatory, postmenopausal women, aged ≥ 55 to ≤ 85
  • Low BMD measured by dual energy X-ray absorptiometry (DXA) and assessed by the central imaging vendor (equivalent to T-scores between -2.0 and -3.5)

Exclusion Criteria:

  • History of vertebral fracture, or fragility fracture of the wrist, humerus, hip or pelvis after age 50
  • Untreated hyper- or hypothyroidism
  • Current hyper- or hypoparathyroidism, hypo- or hypercalcemia
  • Elevated transaminases
  • Significantly impaired renal function
  • Positive for: human immunodeficiency virus (HIV), hepatitis-C or hepatitis-B surface antigen
  • Malignancy
  • History of solid organ or bone marrow transplants
  • Use of agents affecting bone metabolism
  • Contraindicated or intolerant of alendronate therapy
  • Contraindicated or intolerant of teriparatide therapy

Inclusion Criteria for the 12 month extension phase (Month 24 to 36):

- Normocalcemia at or after the Month 21 visit but before the Month 24 study visit

Exclusion Criteria for the 12 month extension phase (Month 24 to 36)

  • Incidence of a clinical vertebral fracture or fragility fracture of the wrist, humerus, hip or pelvis during the initial 24 month treatment phase of the study
  • A BMD loss of ≥ 7.0% from baseline at any time up to the Month 18 visit of the initial 24-month treatment phase
  • Malignancy
  • History of osteonecrosis of the jaw
  • Use of proscribed medication during the initial 24 month treatment phase
  • Contraindicated or intolerant of denosumab therapy

Inclusion Criteria for the 12 month re-treatment phase (Month 36 to 48)

  • Albumin adjusted serum calcium of the most recent blood draw at or after the Month 30 visit but before the Month 36 study visit. Calcium repletion is permitted and central laboratory analysis of albumin adjusted serum calcium may be repeated before the Month 36 study visit
  • Participation in Group A or B during initial 24 month treatment phase
  • Subject has reached M36 of the study
  • Appropriate written informed consent must be obtained

Exclusion Criteria for the 12 month re-treatment phase (Month 36 to 48)

  • New malignancy
  • Use of proscribed medication during the 12 month extension phase

Inclusion Criteria for the 24 month follow-on phase (Month 48 to 72) General inclusion criteria for participation

  • Subject has reached month 48 of the study
  • Appropriate written informed consent must be obtained Inclusion criteria for assignment to the no intervention group
  • During the 24 month AMG 785 treatment phase, subject was assigned to any AMG 785 treatment group
  • During the 12 month denosumab extension phase, subject was assigned to the denosumab treatment group Exclusion for the 24 month follow-on phase (Month 48 to 72)
  • New malignancy
  • Use of proscribed meds during the 12 month re-treatment phase
  • Partial informed consent withdrawal and discontinuation of investigational product at any time up to month 48 visit
  • Incidence of a clinical vertebral fracture or fragility fracture of the wrist, humerus, hip or pelvis during the initial 24 month treatment phase of the study
  • BMD T-score of ≤ -2.5 at the lumbar spine, total hip, or femoral neck based on local read of the DXA scans at month 48
  • Intolerance to zoledronic acid

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm 3

    Arm 4

    Arm 5

    Arm 6

    Arm 7

    Arm 8

    Arm Type

    Placebo Comparator

    Active Comparator

    Active Comparator

    Experimental

    Experimental

    Experimental

    Experimental

    Experimental

    Arm Label

    Placebo

    Alendronate

    Teriparatide

    Romosozumab 70 mg QM

    Romosozumab 140 mg Q3M

    Romosozumab 140 mg QM

    Romosozumab 210 mg Q3M

    Romosozumab 210 mg QM

    Arm Description

    Participants received placebo matching to romosozumab once a month (QM) or once every 3 months (Q3M) administered subcutaneously (SC) for up to 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.

    Participants received open-label alendronate (ALN) 70 mg orally (PO) every week (QW) for 12 months. At month 12 participants transitioned to receive romosozumab 140 mg subcutaneously every month for an additional 12 months (months 12 to 24). Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. At month 36 participants ended study participation.

    Participants received open-label teriparatide 20 μg subcutaneously every day (QD) for 12 months. At month 12 participants ended study participation.

    Participants received double-blind romosozumab 70 mg subcutaneously every month for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.

    Participants received double-blind romosozumab 140 mg subcutaneously once every 3 months for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.

    Participants received double-blind romosozumab 140 mg QM subcutaneously for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.

    Participants received double-blind romosozumab 210 mg Q3M subcutaneously for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.

    Participants received double-blind romosozumab 210 mg QM subcutaneously for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.

    Outcomes

    Primary Outcome Measures

    Percent Change From Baseline at Month 12 in BMD at the Lumbar Spine
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader.

    Secondary Outcome Measures

    Percent Change From Baseline at Month 6 in BMD at the Lumbar Spine
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to month 6 was analyzed using a linear mixed effects model with the percent change from baseline to month 6 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Percent Change From Baseline at Month 6 in BMD of the Total Hip
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to month 6 was analyzed using a linear mixed effects model with the percent change from baseline to month 6 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Percent Change From Baseline at Month 6 in BMD of the Femoral Neck
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to month 6 was analyzed using a linear mixed effects model with the percent change from baseline to month 6 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Percent Change From Baseline at Month 12 in BMD of the Total Hip
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to 12 months in BMD was analyzed using a linear mixed effects model with the percent change from baseline to month 12 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Percent Change From Baseline at Month 12 in BMD of the Femoral Neck
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to 12 months in BMD was analyzed using a linear mixed effects model with the percent change from baseline to month 12 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Percent Change From Baseline at Month 12 in BMD of the Distal Radius
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline in distal radius BMD was analyzed using an analysis of covariance (ANCOVA) model with the percent change from baseline to Month 12 in DXA BMD as dependent variable, baseline BMD value, machine type, interaction of baseline BMD and machine type, treatment (categorical) and geographic region as the independent class variables.
    Percent Change From Baseline in Procollagen Type 1 N-telopeptide (P1NP)
    Percent change from baseline in the bone turnover marker (BTM) P1NP was analyzed using a linear mixed effects model with the natural logarithm of the ratio of BTM (follow-up versus baseline) as the dependent variables, and visit, treatment (categorical), interaction of treatment and visit and the natural logarithm of the baseline BTM as the independent variables; outcomes were then transformed back to percent change from baseline.
    Percent Change From Baseline in Type 1 Collagen C-telopeptide (CTX)
    Percent change from baseline in the bone turnover marker (BTM) CTX was analyzed using a linear mixed effects model with the natural logarithm of the ratio of BTM (follow-up versus baseline) as the dependent variables, and visit, treatment (categorical), interaction of treatment and visit and the natural logarithm of the baseline BTM as the independent variables; outcomes were then transformed back to percent change from baseline.
    Percent Change From Baseline in Osteocalcin
    Percent change from baseline in the bone turnover marker (BTM) osteocalcin was analyzed using a linear mixed effects model with the natural logarithm of the ratio of BTM (follow-up versus baseline) as the dependent variables, and visit, treatment (categorical), interaction of treatment and visit and the natural logarithm of the baseline BTM as the independent variables; outcomes were then transformed back to percent change from baseline.
    Percent Change From Baseline in Bone-specific Alkaline Phosphatase (BSAP)
    Percent change from baseline in the bone turnover marker (BTM) BSAP was analyzed using a linear mixed effects model with the natural logarithm of the ratio of BTM (follow-up versus baseline) as the dependent variables, and visit, treatment (categorical), interaction of treatment and visit and the natural logarithm of the baseline BTM as the independent variables; outcomes were then transformed back to percent change from baseline.

    Full Information

    First Posted
    May 7, 2009
    Last Updated
    September 9, 2022
    Sponsor
    Amgen
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    1. Study Identification

    Unique Protocol Identification Number
    NCT00896532
    Brief Title
    Romosozumab (AMG 785) in Postmenopausal Women With Low Bone Mineral Density
    Official Title
    A Randomised, Placebo-controlled, Multi-dose Phase 2 Study to Determine the Efficacy, Safety and Tolerability of AMG 785 in the Treatment of Postmenopausal Women With Low Bone Mineral Density
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    September 2022
    Overall Recruitment Status
    Completed
    Study Start Date
    June 3, 2009 (Actual)
    Primary Completion Date
    February 21, 2011 (Actual)
    Study Completion Date
    February 18, 2016 (Actual)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    Amgen

    4. Oversight

    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    The primary objective was to determine the effect of treatment with romosozumab versus placebo at month 12 on the percent change from baseline in bone mineral density (BMD) at the lumbar spine in postmenopausal women with low bone density.
    Detailed Description
    This study included a 24-month treatment phase followed by rerandomization to a 12-month extension phase with denosumab or placebo, followed by a 12-month retreatment phase with romosozumab, followed by a 24-month follow-on phase with zoledronic acid or no intervention. 24-month Romosozumab Treatment Phase (months 1 to 24): Participants were randomized in a 1:1:1:1:1:1:1:1 ratio to receive 1 of 5 double-blind dosing regimens of romosozumab or placebo or open-label alendronate (ALN) or open-label teriparatide (TPTD) for the first 12 months of the study. At month 12, participants in the romosozumab and placebo groups continued their assigned treatment for an additional 12 months, participants in the TPTD group ended study participation, and participants in the ALN group transitioned to receive romosozumab 140 mg subcutaneously (SC) every month (QM) for an additional 12 months (months 12 to 24). 12-month Denosumab Extension Phase (months 24 to 36): At the end of the 24-month romosozumab treatment phase, eligible participants were randomized 1:1 within their original treatment group to receive either denosumab or placebo every 6 months (Q6M) for 12 months. 12-month Romosozumab Retreatment Phase (months 36 to 48): From months 36 to 48, participants initially randomized to romosozumab or placebo received romosozumab 210 mg SC QM. Participants who initially received ALN ended their participation at month 36 and were not retreated with romosozumab. 24-month Follow-on Phase (months 48 to 72): At month 48, participants received 1 dose of zoledronic acid 5 mg intravenously or no intervention for an additional 24 months.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Low Bone Mineral Density, Postmenopausal Osteoporosis

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Phase 2
    Interventional Study Model
    Parallel Assignment
    Masking
    ParticipantCare ProviderInvestigatorOutcomes Assessor
    Allocation
    Randomized
    Enrollment
    419 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    Placebo
    Arm Type
    Placebo Comparator
    Arm Description
    Participants received placebo matching to romosozumab once a month (QM) or once every 3 months (Q3M) administered subcutaneously (SC) for up to 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.
    Arm Title
    Alendronate
    Arm Type
    Active Comparator
    Arm Description
    Participants received open-label alendronate (ALN) 70 mg orally (PO) every week (QW) for 12 months. At month 12 participants transitioned to receive romosozumab 140 mg subcutaneously every month for an additional 12 months (months 12 to 24). Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. At month 36 participants ended study participation.
    Arm Title
    Teriparatide
    Arm Type
    Active Comparator
    Arm Description
    Participants received open-label teriparatide 20 μg subcutaneously every day (QD) for 12 months. At month 12 participants ended study participation.
    Arm Title
    Romosozumab 70 mg QM
    Arm Type
    Experimental
    Arm Description
    Participants received double-blind romosozumab 70 mg subcutaneously every month for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.
    Arm Title
    Romosozumab 140 mg Q3M
    Arm Type
    Experimental
    Arm Description
    Participants received double-blind romosozumab 140 mg subcutaneously once every 3 months for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.
    Arm Title
    Romosozumab 140 mg QM
    Arm Type
    Experimental
    Arm Description
    Participants received double-blind romosozumab 140 mg QM subcutaneously for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.
    Arm Title
    Romosozumab 210 mg Q3M
    Arm Type
    Experimental
    Arm Description
    Participants received double-blind romosozumab 210 mg Q3M subcutaneously for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.
    Arm Title
    Romosozumab 210 mg QM
    Arm Type
    Experimental
    Arm Description
    Participants received double-blind romosozumab 210 mg QM subcutaneously for 24 months. Participants were then rerandomized to receive denosumab 60 mg or placebo to denosumab subcutaneously every 6 months from months 24 to 36. From months 36 to 48 participants received romosozumab 210 mg SC QM. At month 48 eligible participants received a single dose of open-label zoledronic acid 5 mg intravenously, or no intervention.
    Intervention Type
    Drug
    Intervention Name(s)
    Placebo to Romosozumab
    Intervention Description
    Administered by subcutaneous injection QM or Q3M.
    Intervention Type
    Drug
    Intervention Name(s)
    Alendronate
    Other Intervention Name(s)
    Fosamax
    Intervention Description
    Administered orally once a week
    Intervention Type
    Drug
    Intervention Name(s)
    Teriparatide
    Other Intervention Name(s)
    Forsteo
    Intervention Description
    Teriparatide 20 μg administered by subcutaneous injection once a day
    Intervention Type
    Drug
    Intervention Name(s)
    Romosozumab
    Other Intervention Name(s)
    AMG 785, EVENITY™
    Intervention Description
    Administered by subcutaneous injection
    Intervention Type
    Drug
    Intervention Name(s)
    Denosumab
    Other Intervention Name(s)
    Prolia®
    Intervention Description
    Denosumab 60 mg administered by subcutaneous injection Q6M
    Intervention Type
    Drug
    Intervention Name(s)
    Placebo to Denosumab
    Intervention Description
    Administered by subcutaneous injection Q6M
    Intervention Type
    Drug
    Intervention Name(s)
    Zoledronic acid
    Other Intervention Name(s)
    Aclasta
    Intervention Description
    Zoledronic acid 5 mg administered intravenously
    Primary Outcome Measure Information:
    Title
    Percent Change From Baseline at Month 12 in BMD at the Lumbar Spine
    Description
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader.
    Time Frame
    Baseline to 12 months
    Secondary Outcome Measure Information:
    Title
    Percent Change From Baseline at Month 6 in BMD at the Lumbar Spine
    Description
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to month 6 was analyzed using a linear mixed effects model with the percent change from baseline to month 6 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Time Frame
    Baseline to 6 months
    Title
    Percent Change From Baseline at Month 6 in BMD of the Total Hip
    Description
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to month 6 was analyzed using a linear mixed effects model with the percent change from baseline to month 6 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Time Frame
    Baseline to 6 months
    Title
    Percent Change From Baseline at Month 6 in BMD of the Femoral Neck
    Description
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to month 6 was analyzed using a linear mixed effects model with the percent change from baseline to month 6 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Time Frame
    Baseline to 6 months
    Title
    Percent Change From Baseline at Month 12 in BMD of the Total Hip
    Description
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to 12 months in BMD was analyzed using a linear mixed effects model with the percent change from baseline to month 12 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Time Frame
    Baseline to 12 months
    Title
    Percent Change From Baseline at Month 12 in BMD of the Femoral Neck
    Description
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline to 12 months in BMD was analyzed using a linear mixed effects model with the percent change from baseline to month 12 in DXA BMD as dependent variable, and baseline BMD value, machine type, geographic region, interaction of baseline BMD and machine type, visit, treatment (categorical) and interaction of treatment and visit as the independent variables.
    Time Frame
    Baseline to 12 months
    Title
    Percent Change From Baseline at Month 12 in BMD of the Distal Radius
    Description
    Bone mineral density was measured using dual energy x-ray absorptiometry (DXA). Images were analyzed by a central imaging reader. Percent change from baseline in distal radius BMD was analyzed using an analysis of covariance (ANCOVA) model with the percent change from baseline to Month 12 in DXA BMD as dependent variable, baseline BMD value, machine type, interaction of baseline BMD and machine type, treatment (categorical) and geographic region as the independent class variables.
    Time Frame
    Baseline to 12 months
    Title
    Percent Change From Baseline in Procollagen Type 1 N-telopeptide (P1NP)
    Description
    Percent change from baseline in the bone turnover marker (BTM) P1NP was analyzed using a linear mixed effects model with the natural logarithm of the ratio of BTM (follow-up versus baseline) as the dependent variables, and visit, treatment (categorical), interaction of treatment and visit and the natural logarithm of the baseline BTM as the independent variables; outcomes were then transformed back to percent change from baseline.
    Time Frame
    Baseline and months 1, 3, 6, 9, and 12
    Title
    Percent Change From Baseline in Type 1 Collagen C-telopeptide (CTX)
    Description
    Percent change from baseline in the bone turnover marker (BTM) CTX was analyzed using a linear mixed effects model with the natural logarithm of the ratio of BTM (follow-up versus baseline) as the dependent variables, and visit, treatment (categorical), interaction of treatment and visit and the natural logarithm of the baseline BTM as the independent variables; outcomes were then transformed back to percent change from baseline.
    Time Frame
    Baseline and months 1, 3, 6, 9, and 12
    Title
    Percent Change From Baseline in Osteocalcin
    Description
    Percent change from baseline in the bone turnover marker (BTM) osteocalcin was analyzed using a linear mixed effects model with the natural logarithm of the ratio of BTM (follow-up versus baseline) as the dependent variables, and visit, treatment (categorical), interaction of treatment and visit and the natural logarithm of the baseline BTM as the independent variables; outcomes were then transformed back to percent change from baseline.
    Time Frame
    Baseline and months 1, 3, 6, 9, and 12
    Title
    Percent Change From Baseline in Bone-specific Alkaline Phosphatase (BSAP)
    Description
    Percent change from baseline in the bone turnover marker (BTM) BSAP was analyzed using a linear mixed effects model with the natural logarithm of the ratio of BTM (follow-up versus baseline) as the dependent variables, and visit, treatment (categorical), interaction of treatment and visit and the natural logarithm of the baseline BTM as the independent variables; outcomes were then transformed back to percent change from baseline.
    Time Frame
    Baseline and months 1, 3, 6, 9, and 12

    10. Eligibility

    Sex
    Female
    Minimum Age & Unit of Time
    55 Years
    Maximum Age & Unit of Time
    85 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria: Ambulatory, postmenopausal women, aged ≥ 55 to ≤ 85 Low BMD measured by dual energy X-ray absorptiometry (DXA) and assessed by the central imaging vendor (equivalent to T-scores between -2.0 and -3.5) Exclusion Criteria: History of vertebral fracture, or fragility fracture of the wrist, humerus, hip or pelvis after age 50 Untreated hyper- or hypothyroidism Current hyper- or hypoparathyroidism, hypo- or hypercalcemia Elevated transaminases Significantly impaired renal function Positive for: human immunodeficiency virus (HIV), hepatitis-C or hepatitis-B surface antigen Malignancy History of solid organ or bone marrow transplants Use of agents affecting bone metabolism Contraindicated or intolerant of alendronate therapy Contraindicated or intolerant of teriparatide therapy Inclusion Criteria for the 12 month extension phase (Month 24 to 36): - Normocalcemia at or after the Month 21 visit but before the Month 24 study visit Exclusion Criteria for the 12 month extension phase (Month 24 to 36) Incidence of a clinical vertebral fracture or fragility fracture of the wrist, humerus, hip or pelvis during the initial 24 month treatment phase of the study A BMD loss of ≥ 7.0% from baseline at any time up to the Month 18 visit of the initial 24-month treatment phase Malignancy History of osteonecrosis of the jaw Use of proscribed medication during the initial 24 month treatment phase Contraindicated or intolerant of denosumab therapy Inclusion Criteria for the 12 month re-treatment phase (Month 36 to 48) Albumin adjusted serum calcium of the most recent blood draw at or after the Month 30 visit but before the Month 36 study visit. Calcium repletion is permitted and central laboratory analysis of albumin adjusted serum calcium may be repeated before the Month 36 study visit Participation in Group A or B during initial 24 month treatment phase Subject has reached M36 of the study Appropriate written informed consent must be obtained Exclusion Criteria for the 12 month re-treatment phase (Month 36 to 48) New malignancy Use of proscribed medication during the 12 month extension phase Inclusion Criteria for the 24 month follow-on phase (Month 48 to 72) General inclusion criteria for participation Subject has reached month 48 of the study Appropriate written informed consent must be obtained Inclusion criteria for assignment to the no intervention group During the 24 month AMG 785 treatment phase, subject was assigned to any AMG 785 treatment group During the 12 month denosumab extension phase, subject was assigned to the denosumab treatment group Exclusion for the 24 month follow-on phase (Month 48 to 72) New malignancy Use of proscribed meds during the 12 month re-treatment phase Partial informed consent withdrawal and discontinuation of investigational product at any time up to month 48 visit Incidence of a clinical vertebral fracture or fragility fracture of the wrist, humerus, hip or pelvis during the initial 24 month treatment phase of the study BMD T-score of ≤ -2.5 at the lumbar spine, total hip, or femoral neck based on local read of the DXA scans at month 48 Intolerance to zoledronic acid
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    MD
    Organizational Affiliation
    Amgen
    Official's Role
    Study Director

    12. IPD Sharing Statement

    Citations:
    PubMed Identifier
    27487526
    Citation
    Genant HK, Engelke K, Bolognese MA, Mautalen C, Brown JP, Recknor C, Goemaere S, Fuerst T, Yang YC, Grauer A, Libanati C. Effects of Romosozumab Compared With Teriparatide on Bone Density and Mass at the Spine and Hip in Postmenopausal Women With Low Bone Mass. J Bone Miner Res. 2017 Jan;32(1):181-187. doi: 10.1002/jbmr.2932. Epub 2016 Sep 20.
    Results Reference
    background
    PubMed Identifier
    28543940
    Citation
    Keaveny TM, Crittenden DB, Bolognese MA, Genant HK, Engelke K, Oliveri B, Brown JP, Langdahl BL, Yan C, Grauer A, Libanati C. Greater Gains in Spine and Hip Strength for Romosozumab Compared With Teriparatide in Postmenopausal Women With Low Bone Mass. J Bone Miner Res. 2017 Sep;32(9):1956-1962. doi: 10.1002/jbmr.3176. Epub 2017 Jun 26.
    Results Reference
    background
    PubMed Identifier
    31628490
    Citation
    Kendler DL, Bone HG, Massari F, Gielen E, Palacios S, Maddox J, Yan C, Yue S, Dinavahi RV, Libanati C, Grauer A. Bone mineral density gains with a second 12-month course of romosozumab therapy following placebo or denosumab. Osteoporos Int. 2019 Dec;30(12):2437-2448. doi: 10.1007/s00198-019-05146-9. Epub 2019 Oct 18.
    Results Reference
    background
    PubMed Identifier
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    AmgenTrials clinical trials website

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    Romosozumab (AMG 785) in Postmenopausal Women With Low Bone Mineral Density

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