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NCT02256436 · OUTCOME

ORR Per mRECIST - Participants With Strongly PD-L1 Positive Tumors

A Study of Pembrolizumab (MK-3475) Versus Paclitaxel, Docetaxel, or Vinflunine for Participants With Advanced Urothelial Cancer (MK-3475-045/KEYNOTE-045) · Source last updated 2021-09-20

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
Through final analysis database cut-off date of 26-Oct-2017 (Up to approximately 34 months)

What was measured

ORR per mRECIST was defined as the percentage of participants in the analysis population who had a CR (complete disappearance of all lesions (and no new lesions), with confirmation by a repeat, consecutive assessment no less than 4 weeks from the date first documented) or a PR (decrease in tumor burden ≥50% relative to baseline confirmed by a consecutive assessment at least 4 weeks after first documentation). ORR per mRECIST was assessed by BICR in participants with strongly PD-L1 positive tumors (CPS ≥10%) up through the final analysis database cut-off date of 26-Oct-2017.

Analysis population: The analysis population consisted of all randomized strongly PD-L1 positive participants, regardless of whether or not they received study treatment. Participants were included in the treatment group to which they were randomized.

Groups in this outcome

Control

Participants received paclitaxel 175 mg/m\^2 intravenously (IV) or docetaxel 75 mg/m\^2 IV or vinflunine 320 mg/m\^2 IV, on Day 1 of each 3-week cycle (Q3W). Eligible participants who experienced disease progression may have been able to switch over to receive pembrolizumab 200 mg IV Q3W for up to 35 treatment administrations (up to approximately 2 years).

Pembrolizumab

Participants received pembrolizumab 200 mg IV on Day 1 Q3W. Eligible participants who stopped pembrolizumab with Stable Disease (SD) or better but progressed after discontinuation may have been able to initiate a second course of pembrolizumab 200 mg IV Q3W for up to 17 cycles (up to approximately 1 additional year).

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

Analysis denominator · Participants

GroupSource count
Control90
Pembrolizumab74

Reported measurements

Source class 1
Values in Percentage of Participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Control7.8Not reported3.215.4Not reported
Pembrolizumab24.3Not reported15.135.7Not reported

Source statistical analyses

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

  1. ci Lower Limit
    10.1
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    34.2
    group Description
    ORR per mRECIST - Strongly PD-L1 Positive Participants
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.00009
    p Value Comment
    One-sided p-value for testing H0: difference in %=0; H1: difference in %\>0
    param Type
    Difference in Percentages
    param Value
    21.5
    statistical Comment
    Treatment as a covariate stratified by ECOG PS, presence/absence of liver metastases, hemoglobin and time from completion of most recent chemotherapy
    statistical Method
    Miettinen & Nurminen method
Complete source fields
analyses
  1. ci Lower Limit
    10.1
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    34.2
    group Description
    ORR per mRECIST - Strongly PD-L1 Positive Participants
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.00009
    p Value Comment
    One-sided p-value for testing H0: difference in %=0; H1: difference in %\>0
    param Type
    Difference in Percentages
    param Value
    21.5
    statistical Comment
    Treatment as a covariate stratified by ECOG PS, presence/absence of liver metastases, hemoglobin and time from completion of most recent chemotherapy
    statistical Method
    Miettinen & Nurminen method
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        3.2
        upper Limit
        15.4
        value
        7.8
      2. group Id
        OG001
        lower Limit
        15.1
        upper Limit
        35.7
        value
        24.3
denoms
  1. counts
    1. group Id
      OG000
      value
      90
    2. group Id
      OG001
      value
      74
    units
    Participants
description
ORR per mRECIST was defined as the percentage of participants in the analysis population who had a CR (complete disappearance of all lesions (and no new lesions), with confirmation by a repeat, consecutive assessment no less than 4 weeks from the date first documented) or a PR (decrease in tumor burden ≥50% relative to baseline confirmed by a consecutive assessment at least 4 weeks after first documentation). ORR per mRECIST was assessed by BICR in participants with strongly PD-L1 positive tumors (CPS ≥10%) up through the final analysis database cut-off date of 26-Oct-2017.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received paclitaxel 175 mg/m\^2 intravenously (IV) or docetaxel 75 mg/m\^2 IV or vinflunine 320 mg/m\^2 IV, on Day 1 of each 3-week cycle (Q3W). Eligible participants who experienced disease progression may have been able to switch over to receive pembrolizumab 200 mg IV Q3W for up to 35 treatment administrations (up to approximately 2 years).
    id
    OG000
    title
    Control
  2. description
    Participants received pembrolizumab 200 mg IV on Day 1 Q3W. Eligible participants who stopped pembrolizumab with Stable Disease (SD) or better but progressed after discontinuation may have been able to initiate a second course of pembrolizumab 200 mg IV Q3W for up to 17 cycles (up to approximately 1 additional year).
    id
    OG001
    title
    Pembrolizumab
param Type
NUMBER
population Description
The analysis population consisted of all randomized strongly PD-L1 positive participants, regardless of whether or not they received study treatment. Participants were included in the treatment group to which they were randomized.
reporting Status
POSTED
time Frame
Through final analysis database cut-off date of 26-Oct-2017 (Up to approximately 34 months)
title
ORR Per mRECIST - Participants With Strongly PD-L1 Positive Tumors
type
SECONDARY
unit Of Measure
Percentage of Participants

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