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NCT00321464 · OUTCOME

Time to First and Subsequent On-Study Skeletal-Related Event

A Study Comparing Denosumab vs. Zoledronic Acid for the Treatment of Bone Metastases in Breast Cancer Subjects. · Source last updated 2022-11-08

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
NUMBER
Unit
Events
Interval / dispersion
Not reported
Time frame
Up to 34 months

What was measured

Time to first and subsequent on-study skeletal-related event (SRE) using a multiple event analysis. To be considered a subsequent SRE, the event must occur at least 21 days after the previous SRE. This outcome measure utilizes multiple event times, was analyzed based on a proportional mean model, and is therefore more appropriately summarized by the cumulative number of events.

Analysis population: Full Analysis Set, composed of all randomized participants

Groups in this outcome

Zoledronic Acid

Zoledronic acid 4 mg by intravenous injection with subcutaneous denosumab placebo once every 4 weeks

Denosumab

Denomsumab 120 mg subcutaneously with intravenous zoledronic acid placebo once every 4 weeks

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Zoledronic Acid1020
Denosumab1026

Reported measurements

Source class 1
Values in Events · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Zoledronic Acid608Not reportedNot reportedNot reportedNot reported
Denosumab474Not reportedNot reportedNot reportedNot reported

Source statistical analyses

Group order, estimate direction, methods and comments are retained. No treatment ranking is inferred.

  1. ci Lower Limit
    0.66
    ci Pct Value
    95
    ci Upper Limit
    0.89
    estimate Comment
    Stratified by the randomization stratification factors (previous skeletal-related event, prior oral bisphosphonate use, current chemotherapy, and location in Japan).
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.001
    p Value Comment
    P-value was adjusted for multiplicity according to a hierarchical testing strategy and Hochberg procedure
    param Type
    Rate ratio
    param Value
    0.77
    statistical Method
    Anderson-Gill model
Complete source fields
analyses
  1. ci Lower Limit
    0.66
    ci Pct Value
    95
    ci Upper Limit
    0.89
    estimate Comment
    Stratified by the randomization stratification factors (previous skeletal-related event, prior oral bisphosphonate use, current chemotherapy, and location in Japan).
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.001
    p Value Comment
    P-value was adjusted for multiplicity according to a hierarchical testing strategy and Hochberg procedure
    param Type
    Rate ratio
    param Value
    0.77
    statistical Method
    Anderson-Gill model
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        608
      2. group Id
        OG001
        value
        474
denoms
  1. counts
    1. group Id
      OG000
      value
      1020
    2. group Id
      OG001
      value
      1026
    units
    Participants
description
Time to first and subsequent on-study skeletal-related event (SRE) using a multiple event analysis. To be considered a subsequent SRE, the event must occur at least 21 days after the previous SRE. This outcome measure utilizes multiple event times, was analyzed based on a proportional mean model, and is therefore more appropriately summarized by the cumulative number of events.
groups
  1. description
    Zoledronic acid 4 mg by intravenous injection with subcutaneous denosumab placebo once every 4 weeks
    id
    OG000
    title
    Zoledronic Acid
  2. description
    Denomsumab 120 mg subcutaneously with intravenous zoledronic acid placebo once every 4 weeks
    id
    OG001
    title
    Denosumab
param Type
NUMBER
population Description
Full Analysis Set, composed of all randomized participants
reporting Status
POSTED
time Frame
Up to 34 months
title
Time to First and Subsequent On-Study Skeletal-Related Event
type
SECONDARY
unit Of Measure
Events

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Preserved source evidence · Not medical advice