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NCT01942135 · OUTCOME

Time to Deterioration (TTD)

Palbociclib (PD-0332991) Combined With Fulvestrant In Hormone Receptor+ HER2-Negative Metastatic Breast Cancer After Endocrine Failure (PALOMA-3) · Source last updated 2024-04-04

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
Baseline, Day 1 of Cycles 2 to 4, Day 1 of every alternate cycle after that until the end of treatment, as of 05 December 2014

What was measured

A time to event analysis was pre-specified for pain. An analysis of TTD in pain defined as time between baseline and first occurrence of increase of ≥10 points in pain. Deterioration will be defined increase in score of 10 points or greater from baseline. The Kaplan-Meier estimates of quartiles (time to deterioration) with 95% CI is mentioned below.

Analysis population: The PRO -evaluable population is defined as a subset of ITT participants, who have completed a baseline and at least one post -baseline PRO assessment prior to end of study treatment.

Groups in this outcome

Palbociclib + Fulvestrant

Participants were administered an initial dose of 125 mg per day orally continuously for 3 weeks followed by 1 week off that can be reduced to 100 mg or 75 mg in case of toxicity; repeated at each subsequent cycle and fulvestrant 500 mg intramuscularly on days 1 and 15 of cycle 1 and then every 28 days. Pre- and perimenopausal women received goserelin at least 4 weeks before study treatment start and continued receiving concurrent ovarian function suppression with goserelin administered subcutaneously every 28 days during the active treatment phase. Maximum treatment duration was 105 cycles.

Placebo + Fulvestrant

Participants were administered placebo orally continuously dosed for 3 weeks followed by 1 week off; repeated at each subsequent cycle and Fulvestrant 500 mg intramuscularly on Days 1 and 15 of cycle 1 and then every 28 days. Pre- and perimenopausal women received goserelin at least 4 weeks before study treatment start and continued receiving concurrent ovarian function suppression with goserelin administered subcutaneously every 28 days during the active treatment phase. Maximum treatment duration was 93 cycles.

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 + Fulvestrant335
Placebo + Fulvestrant166

Reported measurements

25% quartile
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Palbociclib + Fulvestrant1.9Not reported1.22.2Not reported
Placebo + Fulvestrant1.0Not reported1.01.9Not reported
50% quartile
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Palbociclib + Fulvestrant8.0Not reported5.6NADue to less follow-up time and insufficient number of participants with events.
Placebo + Fulvestrant2.8Not reported2.35.4Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.487
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.846
    estimate Comment
    Assuming proportional hazards, a hazard ratio less than 1 indicates a reduction in hazard rate in favor of the palbociclib plus fulvestrant arm.
    group Description
    Treatment with palbociclib plus fulvestrant significantly delayed TTD in pain symptom compared with placebo plus fulvestrant for unstratified analysis.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    <0.001
    p Value Comment
    The priori threshold for statistical significance is 1-sided alpha=0.025. The p-value was not adjusted for multiple comparisons.
    param Type
    Hazard Ratio (HR)
    param Value
    0.642
    statistical Comment
    1-sided p-value from the unstratified log-rank test.
    statistical Method
    Unstratified log-rank test (1-sided)
Complete source fields
analyses
  1. ci Lower Limit
    0.487
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.846
    estimate Comment
    Assuming proportional hazards, a hazard ratio less than 1 indicates a reduction in hazard rate in favor of the palbociclib plus fulvestrant arm.
    group Description
    Treatment with palbociclib plus fulvestrant significantly delayed TTD in pain symptom compared with placebo plus fulvestrant for unstratified analysis.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    <0.001
    p Value Comment
    The priori threshold for statistical significance is 1-sided alpha=0.025. The p-value was not adjusted for multiple comparisons.
    param Type
    Hazard Ratio (HR)
    param Value
    0.642
    statistical Comment
    1-sided p-value from the unstratified log-rank test.
    statistical Method
    Unstratified log-rank test (1-sided)
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        1.2
        upper Limit
        2.2
        value
        1.9
      2. group Id
        OG001
        lower Limit
        1.0
        upper Limit
        1.9
        value
        1.0
    title
    25% quartile
  2. categories
    1. measurements
      1. comment
        Due to less follow-up time and insufficient number of participants with events.
        group Id
        OG000
        lower Limit
        5.6
        upper Limit
        NA
        value
        8.0
      2. group Id
        OG001
        lower Limit
        2.3
        upper Limit
        5.4
        value
        2.8
    title
    50% quartile
denoms
  1. counts
    1. group Id
      OG000
      value
      335
    2. group Id
      OG001
      value
      166
    units
    Participants
description
A time to event analysis was pre-specified for pain. An analysis of TTD in pain defined as time between baseline and first occurrence of increase of ≥10 points in pain. Deterioration will be defined increase in score of 10 points or greater from baseline. The Kaplan-Meier estimates of quartiles (time to deterioration) with 95% CI is mentioned below.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants were administered an initial dose of 125 mg per day orally continuously for 3 weeks followed by 1 week off that can be reduced to 100 mg or 75 mg in case of toxicity; repeated at each subsequent cycle and fulvestrant 500 mg intramuscularly on days 1 and 15 of cycle 1 and then every 28 days. Pre- and perimenopausal women received goserelin at least 4 weeks before study treatment start and continued receiving concurrent ovarian function suppression with goserelin administered subcutaneously every 28 days during the active treatment phase. Maximum treatment duration was 105 cycles.
    id
    OG000
    title
    Palbociclib + Fulvestrant
  2. description
    Participants were administered placebo orally continuously dosed for 3 weeks followed by 1 week off; repeated at each subsequent cycle and Fulvestrant 500 mg intramuscularly on Days 1 and 15 of cycle 1 and then every 28 days. Pre- and perimenopausal women received goserelin at least 4 weeks before study treatment start and continued receiving concurrent ovarian function suppression with goserelin administered subcutaneously every 28 days during the active treatment phase. Maximum treatment duration was 93 cycles.
    id
    OG001
    title
    Placebo + Fulvestrant
param Type
MEDIAN
population Description
The PRO -evaluable population is defined as a subset of ITT participants, who have completed a baseline and at least one post -baseline PRO assessment prior to end of study treatment.
reporting Status
POSTED
time Frame
Baseline, Day 1 of Cycles 2 to 4, Day 1 of every alternate cycle after that until the end of treatment, as of 05 December 2014
title
Time to Deterioration (TTD)
type
SECONDARY
unit Of Measure
Months

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Preserved source evidence · Not medical advice