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NCT02853305 · OUTCOME

Pembro Combo vs Chemo: Change From Baseline to Week 18 in the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30) Global Health Status/Quality of Life (Items 29 and 30) Combined Score

Study of Pembrolizumab With or Without Platinum-based Combination Chemotherapy Versus Chemotherapy Alone in Urothelial Carcinoma (MK-3475-361/KEYNOTE-361) · Source last updated 2023-09-08

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
LEAST_SQUARES_MEAN
Unit
Score on a Scale
Interval / dispersion
95% Confidence Interval
Time frame
Baseline, Week 18

What was measured

The EORTC-QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of cancer patients. Participant responses to the Global Health Status (GHS) question "How would you rate your overall health during the past week?" (Item 29) and the Quality of Life (QoL) question "How would you rate your overall quality of life during the past week?" (Item 30) were scored on a 7-point scale (1=Very Poor to 7=Excellent). Using linear transformation, raw scores were standardized so that scores ranged from 0 to 100, with a higher score indicating a better overall outcome. Per protocol, change from baseline to Week 18 in the GHS/QoL combined score was compared between all participants of the pembro combo arm and the chemo arm as a pre-specified secondary analysis. As specified by the protocol, change from baseline to Week 18 in the GHS/QoL combined score was compared separately between all participants of the pembro arm and chemo arm and is presented later in the record.

Analysis population: All participants in the ITT population randomized to the pembro combo arm and chemo arm who received at least 1 dose of study drug and who completed at least 1 EORTC-QLQ-C30 assessment were included in the analysis. Per protocol, the pembro arm was compared to the chemo arm separately and is not included in this analysis.

Groups in this outcome

Pembrolizumab + ST Chemotherapy (Pembro Combo)

Participants received pembrolizumab 200 mg IV on Day 1 of each 3-week cycle for a maximum of 35 doses PLUS standard therapy (ST) chemotherapy with EITHER cisplatin 70 mg/m\^2 IV on Day 1 (or Day 2 if required per local guidelines) of each 3-week cycle plus gemcitabine IV infusion 1,000 mg/m\^2 on Day 1 and Day 8 of each 3-week cycle, OR carboplatin at an area under the curve 5 (AUC 5) (or AUC 4.5 if required per local guidelines) IV on Day 1 (or Day 2 if required per local guidelines) of each 3-week cycle plus gemcitabine 1,000 mg/m\^2 IV on Day 1 and Day 8 of each 3-week cycle.

Pembrolizumab (Pembro)

Participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of each 3-week cycle for a maximum of 35 doses.

ST Chemotherapy (Chemo)

Participants received ST chemotherapy with EITHER cisplatin 70 mg/m\^2 IV on Day 1 (or Day 2 if required per local guidelines) of each 3-week cycle plus gemcitabine IV infusion 1,000 mg/m\^2 on Day 1 and Day 8 of each 3-week cycle OR carboplatin at AUC 5 (or AUC 4.5 if required per local guidelines) IV on Day 1 (or Day 2 if required per local guidelines) of each 3-week cycle plus gemcitabine 1,000 mg/m\^2 IV on Day 1 and Day 8 of each 3-week cycle.

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

Analysis denominator · Participants

GroupSource count
Pembrolizumab + ST Chemotherapy (Pembro Combo)336
Pembrolizumab (Pembro)0
ST Chemotherapy (Chemo)337

Reported measurements

Source class 1
Values in Score on a Scale · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Pembrolizumab + ST Chemotherapy (Pembro Combo)2.54Not reported-0.085.16Not reported
ST Chemotherapy (Chemo)-0.14Not reported-2.912.63Not reported

Source statistical analyses

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

  1. ci Lower Limit
    -0.76
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    6.12
    group Description
    Change from baseline to Week 18 in EORTC-QLQ-C30 GHS/QoL combined score was compared between all participants of the pembro combo arm and the chemo arm. Comparison based on constrained longitudinal data analysis (cLDA) model with GHS/QoL score as response variable, and with treatment by study visit interactions and stratification factors (investigator's choice of chemotherapy \[cisplatin or carboplatin\] and PD-L1 status \[CPS\<10 vs. CPS≥10\]) at baseline as covariates.
    group Ids
    1. OG000
    2. OG002
    non Inferiority Type
    OTHER
    p Value Comment
    No formal hypothesis testing was performed.
    param Type
    Difference in LS Means
    param Value
    2.68
Complete source fields
analyses
  1. ci Lower Limit
    -0.76
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    6.12
    group Description
    Change from baseline to Week 18 in EORTC-QLQ-C30 GHS/QoL combined score was compared between all participants of the pembro combo arm and the chemo arm. Comparison based on constrained longitudinal data analysis (cLDA) model with GHS/QoL score as response variable, and with treatment by study visit interactions and stratification factors (investigator's choice of chemotherapy \[cisplatin or carboplatin\] and PD-L1 status \[CPS\<10 vs. CPS≥10\]) at baseline as covariates.
    group Ids
    1. OG000
    2. OG002
    non Inferiority Type
    OTHER
    p Value Comment
    No formal hypothesis testing was performed.
    param Type
    Difference in LS Means
    param Value
    2.68
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        -0.08
        upper Limit
        5.16
        value
        2.54
      2. group Id
        OG002
        lower Limit
        -2.91
        upper Limit
        2.63
        value
        -0.14
denoms
  1. counts
    1. group Id
      OG000
      value
      336
    2. group Id
      OG001
      value
      0
    3. group Id
      OG002
      value
      337
    units
    Participants
description
The EORTC-QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of cancer patients. Participant responses to the Global Health Status (GHS) question "How would you rate your overall health during the past week?" (Item 29) and the Quality of Life (QoL) question "How would you rate your overall quality of life during the past week?" (Item 30) were scored on a 7-point scale (1=Very Poor to 7=Excellent). Using linear transformation, raw scores were standardized so that scores ranged from 0 to 100, with a higher score indicating a better overall outcome. Per protocol, change from baseline to Week 18 in the GHS/QoL combined score was compared between all participants of the pembro combo arm and the chemo arm as a pre-specified secondary analysis. As specified by the protocol, change from baseline to Week 18 in the GHS/QoL combined score was compared separately between all participants of the pembro arm and chemo arm and is presented later in the record.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received pembrolizumab 200 mg IV on Day 1 of each 3-week cycle for a maximum of 35 doses PLUS standard therapy (ST) chemotherapy with EITHER cisplatin 70 mg/m\^2 IV on Day 1 (or Day 2 if required per local guidelines) of each 3-week cycle plus gemcitabine IV infusion 1,000 mg/m\^2 on Day 1 and Day 8 of each 3-week cycle, OR carboplatin at an area under the curve 5 (AUC 5) (or AUC 4.5 if required per local guidelines) IV on Day 1 (or Day 2 if required per local guidelines) of each 3-week cycle plus gemcitabine 1,000 mg/m\^2 IV on Day 1 and Day 8 of each 3-week cycle.
    id
    OG000
    title
    Pembrolizumab + ST Chemotherapy (Pembro Combo)
  2. description
    Participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of each 3-week cycle for a maximum of 35 doses.
    id
    OG001
    title
    Pembrolizumab (Pembro)
  3. description
    Participants received ST chemotherapy with EITHER cisplatin 70 mg/m\^2 IV on Day 1 (or Day 2 if required per local guidelines) of each 3-week cycle plus gemcitabine IV infusion 1,000 mg/m\^2 on Day 1 and Day 8 of each 3-week cycle OR carboplatin at AUC 5 (or AUC 4.5 if required per local guidelines) IV on Day 1 (or Day 2 if required per local guidelines) of each 3-week cycle plus gemcitabine 1,000 mg/m\^2 IV on Day 1 and Day 8 of each 3-week cycle.
    id
    OG002
    title
    ST Chemotherapy (Chemo)
param Type
LEAST_SQUARES_MEAN
population Description
All participants in the ITT population randomized to the pembro combo arm and chemo arm who received at least 1 dose of study drug and who completed at least 1 EORTC-QLQ-C30 assessment were included in the analysis. Per protocol, the pembro arm was compared to the chemo arm separately and is not included in this analysis.
reporting Status
POSTED
time Frame
Baseline, Week 18
title
Pembro Combo vs Chemo: Change From Baseline to Week 18 in the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30) Global Health Status/Quality of Life (Items 29 and 30) Combined Score
type
SECONDARY
unit Of Measure
Score on a Scale

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