Skip to content
← Full study record

NCT02422615 · OUTCOME

Progression Free Survival (PFS) Per Investigator Assessment

Study of Efficacy and Safety of LEE011 in Men and Postmenopausal Women With Advanced Breast Cancer. · Source last updated 2023-11-30

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 randomization to first documented progression or death, assessed up to approximately 26 months

What was measured

PFS was defined as the period starting from the date of randomization to the date of the first documented progression or death caused by any reason. In cases where patients did not experience an event, the PFS was censored at the date of the last adequate tumor assessment. Clinical deterioration without objective radiological evidence was not considered as documented disease progression. PFS was assessed via local radiology assessment according to RECIST 1.1. The Kaplan-Meier method was used to estimate PFS, and the median PFS, along with 95% confidence intervals, was reported for each treatment group. The distribution of PFS between the two arms was compared using a stratified log-rank test at a one-sided 2.5% level of significance. The PFS hazard ratio with two-sided 95% confidence interval was derived from the stratified Cox proportional hazards model.

Analysis population: The Full Analysis Set (FAS) including all randomized patients.

Groups in this outcome

Ribociclib + Fulvestrant

Ribociclib was administered orally at a daily dose of 600mg for 21 consecutive days within a 28-day cycle. This treatment was combined with fulvestrant, which was administered via intramuscular injections of 500mg every 28 days starting on Day 1 of each cycle. Additionally, an extra dose of fulvestrant was given on Day 15 of Cycle 1. For participants who did not tolerate the protocol-specified dosing schedule, dose adjustments were permitted in order to allow the patient to continue the study treatment.

Placebo + Fulvestrant

Placebo was administered orally for 21 consecutive days within a 28-day cycle. This treatment was combined with fulvestrant, which was administered via intramuscular injections of 500mg every 28 days starting on Day 1 of each cycle. Additionally, an extra dose of fulvestrant was given on Day 15 of Cycle 1.

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

Analysis denominator · Participants

GroupSource count
Ribociclib + Fulvestrant484
Placebo + Fulvestrant242

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Ribociclib + Fulvestrant20.5Not reported18.523.5Not reported
Placebo + Fulvestrant12.8Not reported10.916.3Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.480
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.732
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.00000041
    param Type
    Cox Proportional Hazard
    param Value
    0.593
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.480
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.732
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.00000041
    param Type
    Cox Proportional Hazard
    param Value
    0.593
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        18.5
        upper Limit
        23.5
        value
        20.5
      2. group Id
        OG001
        lower Limit
        10.9
        upper Limit
        16.3
        value
        12.8
denoms
  1. counts
    1. group Id
      OG000
      value
      484
    2. group Id
      OG001
      value
      242
    units
    Participants
description
PFS was defined as the period starting from the date of randomization to the date of the first documented progression or death caused by any reason. In cases where patients did not experience an event, the PFS was censored at the date of the last adequate tumor assessment. Clinical deterioration without objective radiological evidence was not considered as documented disease progression. PFS was assessed via local radiology assessment according to RECIST 1.1. The Kaplan-Meier method was used to estimate PFS, and the median PFS, along with 95% confidence intervals, was reported for each treatment group. The distribution of PFS between the two arms was compared using a stratified log-rank test at a one-sided 2.5% level of significance. The PFS hazard ratio with two-sided 95% confidence interval was derived from the stratified Cox proportional hazards model.
dispersion Type
95% Confidence Interval
groups
  1. description
    Ribociclib was administered orally at a daily dose of 600mg for 21 consecutive days within a 28-day cycle. This treatment was combined with fulvestrant, which was administered via intramuscular injections of 500mg every 28 days starting on Day 1 of each cycle. Additionally, an extra dose of fulvestrant was given on Day 15 of Cycle 1. For participants who did not tolerate the protocol-specified dosing schedule, dose adjustments were permitted in order to allow the patient to continue the study treatment.
    id
    OG000
    title
    Ribociclib + Fulvestrant
  2. description
    Placebo was administered orally for 21 consecutive days within a 28-day cycle. This treatment was combined with fulvestrant, which was administered via intramuscular injections of 500mg every 28 days starting on Day 1 of each cycle. Additionally, an extra dose of fulvestrant was given on Day 15 of Cycle 1.
    id
    OG001
    title
    Placebo + Fulvestrant
param Type
MEDIAN
population Description
The Full Analysis Set (FAS) including all randomized patients.
reporting Status
POSTED
time Frame
From randomization to first documented progression or death, assessed up to approximately 26 months
title
Progression Free Survival (PFS) Per Investigator Assessment
type
PRIMARY
unit Of Measure
Months

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice