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NCT02460198 · OUTCOME

Progression-Free Survival (PFS) Per RECIST 1.1 Assessed by Central Imaging Vendor.

Study of Pembrolizumab (MK-3475) as Monotherapy in Participants With Previously-Treated Locally Advanced Unresectable or Metastatic Colorectal Cancer (MK-3475-164/KEYNOTE-164) · Source last updated 2023-07-27

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 66 months

What was measured

PFS is defined as the time from first day of study treatment to the first documented disease progression or death due to any cause, whichever occurs first. Progressive Disease: at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must have also demonstrated an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions was also considered progression). PFS was summarized by Kaplan-Meier (KM) methods. The data cutoff date was 19-FEB-2021.

Analysis population: The analysis population consisted of all participants who received at least one dose of study treatment.

Groups in this outcome

Cohort A - Pembrolizumab 200 mg

Participants were previously treated with standard therapies, which must include fluoropyrimidine, oxaliplatin, and irinotecan. Cohort A participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of every 3-week cycle (Q3W) for up to approximately 35 cycles (up to approximately 2 years).

Cohort B - Pembrolizumab 200 mg

Participants were previously treated with at least one line of systemic standard of care therapy: fluoropyrimidine + oxaliplatin or fluoropyrimidine + irinotecan +/ - anti vascular endothelial growth factor (VEGF)/ epidermal growth factor regulator (EGFR) monoclonal antibody. Cohort B participants received pembrolizumab 200 mg IV on Day 1 Q3W for up to approximately 35 cycles (up to approximately 2 years).

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

Analysis denominator · Participants

GroupSource count
Cohort A - Pembrolizumab 200 mg61
Cohort B - Pembrolizumab 200 mg63

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Cohort A - Pembrolizumab 200 mg2.3Not reported2.18.1Not reported
Cohort B - Pembrolizumab 200 mg4.1Not reported2.118.9Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        2.1
        upper Limit
        8.1
        value
        2.3
      2. group Id
        OG001
        lower Limit
        2.1
        upper Limit
        18.9
        value
        4.1
denoms
  1. counts
    1. group Id
      OG000
      value
      61
    2. group Id
      OG001
      value
      63
    units
    Participants
description
PFS is defined as the time from first day of study treatment to the first documented disease progression or death due to any cause, whichever occurs first. Progressive Disease: at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must have also demonstrated an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions was also considered progression). PFS was summarized by Kaplan-Meier (KM) methods. The data cutoff date was 19-FEB-2021.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants were previously treated with standard therapies, which must include fluoropyrimidine, oxaliplatin, and irinotecan. Cohort A participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of every 3-week cycle (Q3W) for up to approximately 35 cycles (up to approximately 2 years).
    id
    OG000
    title
    Cohort A - Pembrolizumab 200 mg
  2. description
    Participants were previously treated with at least one line of systemic standard of care therapy: fluoropyrimidine + oxaliplatin or fluoropyrimidine + irinotecan +/ - anti vascular endothelial growth factor (VEGF)/ epidermal growth factor regulator (EGFR) monoclonal antibody. Cohort B participants received pembrolizumab 200 mg IV on Day 1 Q3W for up to approximately 35 cycles (up to approximately 2 years).
    id
    OG001
    title
    Cohort B - Pembrolizumab 200 mg
param Type
MEDIAN
population Description
The analysis population consisted of all participants who received at least one dose of study treatment.
reporting Status
POSTED
time Frame
Up to approximately 66 months
title
Progression-Free Survival (PFS) Per RECIST 1.1 Assessed by Central Imaging Vendor.
type
SECONDARY
unit Of Measure
Months

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

Preserved source evidence · Independent clinical review pending · Not medical advice