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NCT01740427 · OUTCOME

Change From Baseline Between Treatment Comparison in Euro Quality of Life (EQ-5D) Index

A Study of Palbociclib (PD-0332991) + Letrozole vs. Letrozole For 1st Line Treatment Of Postmenopausal Women With ER+/HER2- Advanced Breast Cancer (PALOMA-2) · Source last updated 2024-11-14

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

Measure
MEAN
Unit
Units on a scale
Interval / dispersion
95% Confidence Interval
Time frame
From Baseline up to 2.5 years

What was measured

The EuroQol EQ-5D is a 6-item instrument designed to assess health status in terms of a single index value or utility score. It contains 5 descriptors of current health state (mobility, self-care, usual activities, pain or discomfort, and anxiety or depression) with each dimension having 3 levels of function (1=no problem, 2=some problem, and 3=extreme problem). The scores on the 5 descriptors are summarized to create a single summary score. An overall utility score is calculated based on these domains, with a range score from 0 (worse health scenario) to a maximum of 1.0 (best health scenario).

Analysis population: Patient Reported Outcome (PRO) Analysis Set is a subset of ITT participants, who had both baseline and at least one follow-up PRO assessment.

Groups in this outcome

Palbociclib Plus Letrozole

Participants received letrozole 2.5 milligram (mg) orally QD (once daily) combined with palbociclib 125 mg QD for 21 days of every-28-day cycle, followed by 7 days off treatment.

Placebo Plus Letrozole

Participants received letrozole 2.5 mg orally QD combined with placebo QD for 21 days of every-28-day cycle, followed by 7 days off treatment.

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

Analysis denominator · Participants

GroupSource count
Palbociclib Plus Letrozole437
Placebo Plus Letrozole218

Reported measurements

Source class 1
Values in Units on a scale · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Palbociclib Plus Letrozole0.014Not reported0.000.03Not reported
Placebo Plus Letrozole-0.010Not reported-0.030.01Not reported

Source statistical analyses

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

  1. ci Lower Limit
    -0.004
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.051
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.0925
    param Type
    Mean Difference (Final Values)
    param Value
    0.023
    statistical Comment
    Analysis based on repeated measures mixed-effects model with an intercept term, treatment, time, treatment-by-time, and baseline as covariate.
    statistical Method
    Mixed Models Analysis
Complete source fields
analyses
  1. ci Lower Limit
    -0.004
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.051
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.0925
    param Type
    Mean Difference (Final Values)
    param Value
    0.023
    statistical Comment
    Analysis based on repeated measures mixed-effects model with an intercept term, treatment, time, treatment-by-time, and baseline as covariate.
    statistical Method
    Mixed Models Analysis
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.00
        upper Limit
        0.03
        value
        0.014
      2. group Id
        OG001
        lower Limit
        -0.03
        upper Limit
        0.01
        value
        -0.010
denoms
  1. counts
    1. group Id
      OG000
      value
      437
    2. group Id
      OG001
      value
      218
    units
    Participants
description
The EuroQol EQ-5D is a 6-item instrument designed to assess health status in terms of a single index value or utility score. It contains 5 descriptors of current health state (mobility, self-care, usual activities, pain or discomfort, and anxiety or depression) with each dimension having 3 levels of function (1=no problem, 2=some problem, and 3=extreme problem). The scores on the 5 descriptors are summarized to create a single summary score. An overall utility score is calculated based on these domains, with a range score from 0 (worse health scenario) to a maximum of 1.0 (best health scenario).
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received letrozole 2.5 milligram (mg) orally QD (once daily) combined with palbociclib 125 mg QD for 21 days of every-28-day cycle, followed by 7 days off treatment.
    id
    OG000
    title
    Palbociclib Plus Letrozole
  2. description
    Participants received letrozole 2.5 mg orally QD combined with placebo QD for 21 days of every-28-day cycle, followed by 7 days off treatment.
    id
    OG001
    title
    Placebo Plus Letrozole
param Type
MEAN
population Description
Patient Reported Outcome (PRO) Analysis Set is a subset of ITT participants, who had both baseline and at least one follow-up PRO assessment.
reporting Status
POSTED
time Frame
From Baseline up to 2.5 years
title
Change From Baseline Between Treatment Comparison in Euro Quality of Life (EQ-5D) Index
type
SECONDARY
unit Of Measure
Units on a scale

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Preserved source evidence · Not medical advice