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NCT02555657 · OUTCOME

Progression-Free Survival Per RECIST 1.1 in All Participants

Study of Single Agent Pembrolizumab (MK-3475) Versus Single Agent Chemotherapy for Metastatic Triple Negative Breast Cancer (MK-3475-119/KEYNOTE-119) · Source last updated 2021-12-10

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
Up to approximately 36 months (through Final Analysis database cutoff date of 11-April-2019)

What was measured

Progression-Free Survival (PFS), based on BICR assessment per RECIST 1.1, was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD.

Analysis population: All participants who were included in a treatment group at randomization

Groups in this outcome

Pembrolizumab

Participants received pembrolizumab 200 mg IV every Q3W for up to 35 administrations (up to \~2 years).

Chemotherapy

Participants received capecitabine, eribulin, gemcitabine, or vinorelbine as single agent chemotherapy chosen by the treating physician (Treatment of Physician's Choice, TPC) in accordance with local regulations and guidelines.

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

Analysis denominator · Participants

GroupSource count
Pembrolizumab312
Chemotherapy310

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Pembrolizumab2.1Not reported2.02.1Not reported
Chemotherapy3.3Not reported2.74.0Not reported

Source statistical analyses

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

  1. ci Lower Limit
    1.33
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.92
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    1.0000
    param Type
    Hazard Ratio (HR)
    param Value
    1.60
    statistical Method
    Regression, Cox
Complete source fields
analyses
  1. ci Lower Limit
    1.33
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.92
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    1.0000
    param Type
    Hazard Ratio (HR)
    param Value
    1.60
    statistical Method
    Regression, Cox
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        2.0
        upper Limit
        2.1
        value
        2.1
      2. group Id
        OG001
        lower Limit
        2.7
        upper Limit
        4.0
        value
        3.3
denoms
  1. counts
    1. group Id
      OG000
      value
      312
    2. group Id
      OG001
      value
      310
    units
    Participants
description
Progression-Free Survival (PFS), based on BICR assessment per RECIST 1.1, was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received pembrolizumab 200 mg IV every Q3W for up to 35 administrations (up to \~2 years).
    id
    OG000
    title
    Pembrolizumab
  2. description
    Participants received capecitabine, eribulin, gemcitabine, or vinorelbine as single agent chemotherapy chosen by the treating physician (Treatment of Physician's Choice, TPC) in accordance with local regulations and guidelines.
    id
    OG001
    title
    Chemotherapy
param Type
MEDIAN
population Description
All participants who were included in a treatment group at randomization
reporting Status
POSTED
time Frame
Up to approximately 36 months (through Final Analysis database cutoff date of 11-April-2019)
title
Progression-Free Survival Per RECIST 1.1 in All Participants
type
SECONDARY
unit Of Measure
Months

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Preserved source evidence · Not medical advice