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NCT01311687 · OUTCOME

Progression-free Survival (PFS) - Primary Analysis

A Phase 3, Multicenter, Randomized, Open-Label Study to Compare the Efficacy and Safety of Pomalidomide in Combination With Low-Dose Dexamethasone Versus High-Dose Dexamethasone in Subjects With Refractory Multiple Myeloma or Relapsed and Refractory Multiple Myeloma and Companion Study · Source last updated 2018-10-24

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

Measure
MEDIAN
Unit
weeks
Interval / dispersion
95% Confidence Interval
Time frame
From randomization until the data cut-off date of 07 September 2012. Maximum duration of follow-up for PFS assessments was 57 weeks.

What was measured

Progression-free survival was calculated as the time from randomization to disease progression as determined by the Independent Response Adjudication Committee based on the International Myeloma Working Group Uniform Response criteria (IMWG), or death on study, whichever occurred earlier. Progressive disease required 1 of the following: • Increase of ≥ 25% from nadir in: o Serum M-component (absolute increase ≥ 0.5 g/dl); o Urine M-component (absolute increase ≥ 200 mg/24 hours); o Bone marrow plasma cell percentage (absolute % ≥ 10%); • Development of new or increase in the size of existing bone lesions or soft tissue plasmacytomas; • Development of hypercalcemia (corrected serum calcium \> 11.5 mg/dl) attributed solely to plasma cell proliferative disease.

Analysis population: Intent-to-treat population

Groups in this outcome

Pomalidomide Plus Low-Dose Dexamethasone

Participants received 4 mg pomalidomide administered by mouth on Days 1-21 of each 28-day treatment cycle and 40 mg dexamethasone (participants \> 75 years of age received 20 mg dexamethasone) administered by mouth once per day on Days 1, 8, 15, and 22 of a 28-day cycle until disease progression.

High-Dose Dexamethasone

Participants received 40 mg dexamethasone (participants \> 75 years of age received 20 mg dexamethasone) administered by mouth once per day on Days 1 through 4, 9 through 12, and 17 through 20 of a 28-day cycle until disease progression.

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

Analysis denominator · Participants

GroupSource count
Pomalidomide Plus Low-Dose Dexamethasone302
High-Dose Dexamethasone153

Reported measurements

Source class 1
Values in weeks · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Pomalidomide Plus Low-Dose Dexamethasone15.7Not reported13.020.1Not reported
High-Dose Dexamethasone8.0Not reported7.09.0Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.35
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.59
    estimate Comment
    Hazard ratio is for Pomalidomide Plus Low-Dose Dexamethasone : High Dose Dexamethasone
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    <0.001
    param Type
    Hazard Ratio (HR)
    param Value
    0.45
    statistical Comment
    Stratified by age, disease population, and prior number of anti myeloma therapy.
    statistical Method
    Stratified Log Rank Test
Complete source fields
analyses
  1. ci Lower Limit
    0.35
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.59
    estimate Comment
    Hazard ratio is for Pomalidomide Plus Low-Dose Dexamethasone : High Dose Dexamethasone
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    <0.001
    param Type
    Hazard Ratio (HR)
    param Value
    0.45
    statistical Comment
    Stratified by age, disease population, and prior number of anti myeloma therapy.
    statistical Method
    Stratified Log Rank Test
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        13.0
        upper Limit
        20.1
        value
        15.7
      2. group Id
        OG001
        lower Limit
        7.0
        upper Limit
        9.0
        value
        8.0
denoms
  1. counts
    1. group Id
      OG000
      value
      302
    2. group Id
      OG001
      value
      153
    units
    Participants
description
Progression-free survival was calculated as the time from randomization to disease progression as determined by the Independent Response Adjudication Committee based on the International Myeloma Working Group Uniform Response criteria (IMWG), or death on study, whichever occurred earlier. Progressive disease required 1 of the following: • Increase of ≥ 25% from nadir in: o Serum M-component (absolute increase ≥ 0.5 g/dl); o Urine M-component (absolute increase ≥ 200 mg/24 hours); o Bone marrow plasma cell percentage (absolute % ≥ 10%); • Development of new or increase in the size of existing bone lesions or soft tissue plasmacytomas; • Development of hypercalcemia (corrected serum calcium \> 11.5 mg/dl) attributed solely to plasma cell proliferative disease.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received 4 mg pomalidomide administered by mouth on Days 1-21 of each 28-day treatment cycle and 40 mg dexamethasone (participants \> 75 years of age received 20 mg dexamethasone) administered by mouth once per day on Days 1, 8, 15, and 22 of a 28-day cycle until disease progression.
    id
    OG000
    title
    Pomalidomide Plus Low-Dose Dexamethasone
  2. description
    Participants received 40 mg dexamethasone (participants \> 75 years of age received 20 mg dexamethasone) administered by mouth once per day on Days 1 through 4, 9 through 12, and 17 through 20 of a 28-day cycle until disease progression.
    id
    OG001
    title
    High-Dose Dexamethasone
param Type
MEDIAN
population Description
Intent-to-treat population
reporting Status
POSTED
time Frame
From randomization until the data cut-off date of 07 September 2012. Maximum duration of follow-up for PFS assessments was 57 weeks.
title
Progression-free Survival (PFS) - Primary Analysis
type
PRIMARY
unit Of Measure
weeks

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Preserved source evidence · Not medical advice