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NCT02181413 · OUTCOME

Time to Progression (TTP)

A Study of Oral Ixazomib Citrate (MLN9708) Maintenance Therapy in Participants With Multiple Myeloma Following Autologous Stem Cell Transplant · Source last updated 2024-11-19

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
Randomization up to PD (up to 107 months)

What was measured

TTP is defined as the time from the date of randomization to the date of first documentation of PD, using IMWG criteria. PD is defined as ≥25% increase from lowest value in: serum/urine M-component; participants without measurable serum and urine M-protein levels, the difference between involved and uninvolved FLC levels must be \>10mg/dL; participants without measurable serum, urine M-protein levels and FLC levels, bone marrow plasma cell percent must be ≥10%;new bone lesions/soft tissue plasmacytomas development/existing bone lesions/soft tissue plasmacytomas size rise; hypercalcaemia development. Participants without documentation of PD at the time of analysis were censored at the date of last response assessment that is stable disease or better.

Analysis population: ITT Population was defined as all participants who were randomized and had post randomization data.

Groups in this outcome

Placebo

Ixazomib citrate placebo-matching capsules, orally, once on Days 1, 8 and 15 in a 28-day cycle for Cycles 1 through 26 until progressive disease (PD), unacceptable toxicity, or discontinuation for alternate reasons.

Ixazomib Citrate

Ixazomib citrate 3 mg, capsules, orally, once, on Days 1, 8 and 15 in a 28-day cycle for Cycles 1 through 4. Ixazomib citrate 4 mg, capsules, orally, once, on Days 1, 8 and 15 in a 28-day cycle for Cycles 5 through 26 until PD, unacceptable toxicity, or discontinuation for alternate reasons. Participants who had any dose reductions due to AEs were not dose escalated.

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

Analysis denominator · Participants

GroupSource count
Placebo261
Ixazomib Citrate395

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Placebo21.4Not reported18.1024.67Not reported
Ixazomib Citrate26.6Not reported23.6933.81Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.579
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.886
    estimate Comment
    Hazard ratio is based on an unadjusted Cox's proportional hazard regression model stratified by induction regimen, pre-induction ISS, and response after transplantation, comparing the hazard rate of Ixazomib arm over the hazard rate of Placebo arm.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.002
    p Value Comment
    P-value was based on log-rank test stratified by pre-induction regimen, ISS stage and response after transplantation.
    param Type
    Hazard Ratio (HR)
    param Value
    0.716
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.579
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.886
    estimate Comment
    Hazard ratio is based on an unadjusted Cox's proportional hazard regression model stratified by induction regimen, pre-induction ISS, and response after transplantation, comparing the hazard rate of Ixazomib arm over the hazard rate of Placebo arm.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.002
    p Value Comment
    P-value was based on log-rank test stratified by pre-induction regimen, ISS stage and response after transplantation.
    param Type
    Hazard Ratio (HR)
    param Value
    0.716
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        18.10
        upper Limit
        24.67
        value
        21.4
      2. group Id
        OG001
        lower Limit
        23.69
        upper Limit
        33.81
        value
        26.6
denoms
  1. counts
    1. group Id
      OG000
      value
      261
    2. group Id
      OG001
      value
      395
    units
    Participants
description
TTP is defined as the time from the date of randomization to the date of first documentation of PD, using IMWG criteria. PD is defined as ≥25% increase from lowest value in: serum/urine M-component; participants without measurable serum and urine M-protein levels, the difference between involved and uninvolved FLC levels must be \>10mg/dL; participants without measurable serum, urine M-protein levels and FLC levels, bone marrow plasma cell percent must be ≥10%;new bone lesions/soft tissue plasmacytomas development/existing bone lesions/soft tissue plasmacytomas size rise; hypercalcaemia development. Participants without documentation of PD at the time of analysis were censored at the date of last response assessment that is stable disease or better.
dispersion Type
95% Confidence Interval
groups
  1. description
    Ixazomib citrate placebo-matching capsules, orally, once on Days 1, 8 and 15 in a 28-day cycle for Cycles 1 through 26 until progressive disease (PD), unacceptable toxicity, or discontinuation for alternate reasons.
    id
    OG000
    title
    Placebo
  2. description
    Ixazomib citrate 3 mg, capsules, orally, once, on Days 1, 8 and 15 in a 28-day cycle for Cycles 1 through 4. Ixazomib citrate 4 mg, capsules, orally, once, on Days 1, 8 and 15 in a 28-day cycle for Cycles 5 through 26 until PD, unacceptable toxicity, or discontinuation for alternate reasons. Participants who had any dose reductions due to AEs were not dose escalated.
    id
    OG001
    title
    Ixazomib Citrate
param Type
MEDIAN
population Description
ITT Population was defined as all participants who were randomized and had post randomization data.
reporting Status
POSTED
time Frame
Randomization up to PD (up to 107 months)
title
Time to Progression (TTP)
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice