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NCT02312258 · OUTCOME

Overall Survival (OS)

A Study of Oral Ixazomib Maintenance Therapy in Participants With Newly Diagnosed Multiple Myeloma (NDMM) Not Treated With Stem Cell Transplantation (SCT) · Source last updated 2023-09-21

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

Measure
MEDIAN
Unit
months
Interval / dispersion
95% Confidence Interval
Time frame
From the date of randomization and every 12 weeks after PD on next-line therapy until death (up to 88 months)

What was measured

OS was measured as the time from the date of randomization to the date of death.

Analysis population: ITT Population included all participants who were randomized and had post-randomization data.

Groups in this outcome

Placebo

Ixazomib 3 mg, capsule, orally, once on Days 1, 8, and 15 of each 28-day cycle from Cycles 1 through 26.

Ixazomib

Ixazomib 3 mg, capsule, orally, once on Days 1, 8, and 15 of each 28-day cycle from Cycles 1 to 4 that may have been escalated to 4 mg thereafter up to Cycle 26.

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

Analysis denominator · Participants

GroupSource count
Placebo281
Ixazomib425

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Placebo69.5Not reported56.6775.17Not reported
Ixazomib64.8Not reported54.8774.84Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.861
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.381
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    other Analysis Description
    P-value comparing OS between treatment groups was based on log-rank test stratified by initial therapy (proteasome inhibitor-containing or not), International Staging System (ISS) stage before initial therapy (stage I or II vs stage III), age (\<75 versus \[vs\] \>=75 years) at randomization, and best response to initial therapy (complete response (CR) or very good partial response (VGPR) vs partial response (PR)). Hazard ratio was based on an unadjusted Cox's proportional hazard regression model stratified by initial therapy (proteasome inhibitor-containing or not), ISS stage before initial therapy (stage I or II vs stage III), age (\<75 versus\[vs\] \>=75 years) at randomization, and best response to initial therapy (CR or VGPR vs PR), comparing the hazard rate of ixazomib arm over the hazard rate of placebo arm. A less than 1 hazard ratio was to be considered statistically significant.
    p Value
    =0.473
    param Type
    Hazard Ratio (HR)
    param Value
    1.090
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.861
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.381
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    other Analysis Description
    P-value comparing OS between treatment groups was based on log-rank test stratified by initial therapy (proteasome inhibitor-containing or not), International Staging System (ISS) stage before initial therapy (stage I or II vs stage III), age (\<75 versus \[vs\] \>=75 years) at randomization, and best response to initial therapy (complete response (CR) or very good partial response (VGPR) vs partial response (PR)). Hazard ratio was based on an unadjusted Cox's proportional hazard regression model stratified by initial therapy (proteasome inhibitor-containing or not), ISS stage before initial therapy (stage I or II vs stage III), age (\<75 versus\[vs\] \>=75 years) at randomization, and best response to initial therapy (CR or VGPR vs PR), comparing the hazard rate of ixazomib arm over the hazard rate of placebo arm. A less than 1 hazard ratio was to be considered statistically significant.
    p Value
    =0.473
    param Type
    Hazard Ratio (HR)
    param Value
    1.090
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        56.67
        upper Limit
        75.17
        value
        69.5
      2. group Id
        OG001
        lower Limit
        54.87
        upper Limit
        74.84
        value
        64.8
denoms
  1. counts
    1. group Id
      OG000
      value
      281
    2. group Id
      OG001
      value
      425
    units
    Participants
description
OS was measured as the time from the date of randomization to the date of death.
dispersion Type
95% Confidence Interval
groups
  1. description
    Ixazomib 3 mg, capsule, orally, once on Days 1, 8, and 15 of each 28-day cycle from Cycles 1 through 26.
    id
    OG000
    title
    Placebo
  2. description
    Ixazomib 3 mg, capsule, orally, once on Days 1, 8, and 15 of each 28-day cycle from Cycles 1 to 4 that may have been escalated to 4 mg thereafter up to Cycle 26.
    id
    OG001
    title
    Ixazomib
param Type
MEDIAN
population Description
ITT Population included all participants who were randomized and had post-randomization data.
reporting Status
POSTED
time Frame
From the date of randomization and every 12 weeks after PD on next-line therapy until death (up to 88 months)
title
Overall Survival (OS)
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice