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NCT01345019 · OUTCOME

Overall Survival

Denosumab Compared to Zoledronic Acid in the Treatment of Bone Disease in Patients With Multiple Myeloma · 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
MEDIAN
Unit
days
Interval / dispersion
95% Confidence Interval
Time frame
From randomization until the primary analysis data cut-off date of 19 July 2016 (per protocol); median time on study was 17.6 and 17.3 months in each treatment group respectively.

What was measured

Overall survival was defined as the time interval (in days) from the randomization date to the date of death. If a participant was still alive at the primary analysis data cut-off date or was lost to follow-up by the primary analysis data cut-off date, survival time was censored at their last contact date or the primary analysis data cut-off date, whichever was first.

Analysis population: All randomized participants

Groups in this outcome

Zoledronic Acid

Participants randomized to receive zoledronic acid 4 mg intravenously plus placebo to denosumab subcutaneously once every 4 weeks in the double-blind treatment phase.

Denosumab

Participants randomized to receive denosumab 120 mg subcutaneously plus placebo to zoledronic acid intravenously once every 4 weeks in the double-blind treatment phase.

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 Acid859
Denosumab859

Reported measurements

Source class 1
Values in days · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Zoledronic AcidNANot reportedNANANot estimable, the median survival and 95% CI were not reached
Denosumab1507.0Not reportedNANAThe 95% CI was not estimable as there were no participants in the risk set who survived at the median time

Source statistical analyses

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

  1. ci Lower Limit
    0.70
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.16
    estimate Comment
    A hazard ratio (denosumab:zoledronic acid) \< 1 favors denosumab.
    group Description
    The survival function of time to death for each treatment group was estimated using Kaplan-Meier method and the hazard ratio of denosumab compared with zoledronic acid and its 2-sided 95% CI were estimated using a Cox proportional hazards model stratified by the randomization stratification factors and including treatment groups, age, race group, geographic region, baseline creatinine clearance, baseline risk per cytogenetic based prognosis, and baseline ECOG as independent variables.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    If superiority of denosumab over zoledronic acid was established for both time to first SRE and time to first and subsequent SRE, the additional secondary endpoint (overall survival) was to be tested at a significance level of 0.05.
    non Inferiority Type
    SUPERIORITY
    p Value
    0.41
    param Type
    Hazard Ratio (HR)
    param Value
    0.90
    statistical Method
    Cox proportional hazards model
Complete source fields
analyses
  1. ci Lower Limit
    0.70
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.16
    estimate Comment
    A hazard ratio (denosumab:zoledronic acid) \< 1 favors denosumab.
    group Description
    The survival function of time to death for each treatment group was estimated using Kaplan-Meier method and the hazard ratio of denosumab compared with zoledronic acid and its 2-sided 95% CI were estimated using a Cox proportional hazards model stratified by the randomization stratification factors and including treatment groups, age, race group, geographic region, baseline creatinine clearance, baseline risk per cytogenetic based prognosis, and baseline ECOG as independent variables.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    If superiority of denosumab over zoledronic acid was established for both time to first SRE and time to first and subsequent SRE, the additional secondary endpoint (overall survival) was to be tested at a significance level of 0.05.
    non Inferiority Type
    SUPERIORITY
    p Value
    0.41
    param Type
    Hazard Ratio (HR)
    param Value
    0.90
    statistical Method
    Cox proportional hazards model
classes
  1. categories
    1. measurements
      1. comment
        Not estimable, the median survival and 95% CI were not reached
        group Id
        OG000
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
      2. comment
        The 95% CI was not estimable as there were no participants in the risk set who survived at the median time
        group Id
        OG001
        lower Limit
        NA
        upper Limit
        NA
        value
        1507.0
denoms
  1. counts
    1. group Id
      OG000
      value
      859
    2. group Id
      OG001
      value
      859
    units
    Participants
description
Overall survival was defined as the time interval (in days) from the randomization date to the date of death. If a participant was still alive at the primary analysis data cut-off date or was lost to follow-up by the primary analysis data cut-off date, survival time was censored at their last contact date or the primary analysis data cut-off date, whichever was first.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants randomized to receive zoledronic acid 4 mg intravenously plus placebo to denosumab subcutaneously once every 4 weeks in the double-blind treatment phase.
    id
    OG000
    title
    Zoledronic Acid
  2. description
    Participants randomized to receive denosumab 120 mg subcutaneously plus placebo to zoledronic acid intravenously once every 4 weeks in the double-blind treatment phase.
    id
    OG001
    title
    Denosumab
param Type
MEDIAN
population Description
All randomized participants
reporting Status
POSTED
time Frame
From randomization until the primary analysis data cut-off date of 19 July 2016 (per protocol); median time on study was 17.6 and 17.3 months in each treatment group respectively.
title
Overall Survival
type
SECONDARY
unit Of Measure
days

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Preserved source evidence · Not medical advice