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NCT02460198 · OUTCOME

Objective Response Rate (ORR) - Response Evaluation Criteria in Solid Tumors 1.1 (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
NUMBER
Unit
Percentage of participants
Interval / dispersion
95% Confidence Interval
Time frame
Up to approximately 48 months

What was measured

Objective response rate was defined as the percentage of the participants in the analysis population who had a complete response (CR) or partial response (PR). Complete Response: disappearance of all target lesions. Partial Response: at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Responses were based upon blinded central imaging vendor per RECIST 1.1. The point estimate and 95% confidence interval for the ORR, were provided using an exact binomial distribution (Clopper and Pearson method). Participants without response data were counted as nonresponders. The data cutoff date was 09-SEPT-2019.

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 Percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Cohort A - Pembrolizumab 200 mg32.8Not reported21.346.0Not reported
Cohort B - Pembrolizumab 200 mg34.9Not reported23.348.0Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        21.3
        upper Limit
        46.0
        value
        32.8
      2. group Id
        OG001
        lower Limit
        23.3
        upper Limit
        48.0
        value
        34.9
denoms
  1. counts
    1. group Id
      OG000
      value
      61
    2. group Id
      OG001
      value
      63
    units
    Participants
description
Objective response rate was defined as the percentage of the participants in the analysis population who had a complete response (CR) or partial response (PR). Complete Response: disappearance of all target lesions. Partial Response: at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Responses were based upon blinded central imaging vendor per RECIST 1.1. The point estimate and 95% confidence interval for the ORR, were provided using an exact binomial distribution (Clopper and Pearson method). Participants without response data were counted as nonresponders. The data cutoff date was 09-SEPT-2019.
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
NUMBER
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 48 months
title
Objective Response Rate (ORR) - Response Evaluation Criteria in Solid Tumors 1.1 (RECIST 1.1) Assessed by Central Imaging Vendor
type
PRIMARY
unit Of Measure
Percentage of participants

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

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