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NCT02807636 · OUTCOME

Objective Response Rate (ORR) in Atezolizumab+Gemcitabine+Carboplatin/Cisplatin Arm Versus Placebo+Gemcitabine+Carboplatin/Cisplatin Arm

Study of Atezolizumab as Monotherapy and in Combination With Platinum-Based Chemotherapy in Participants With Untreated Locally Advanced or Metastatic Urothelial Carcinoma · Source last updated 2025-02-24

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
Baseline up to disease progression, death, or loss of follow-up, whichever occurs first (up to approximately 73 months)

What was measured

Objective response rate (ORR) is defined as the proportion of participants with a confirmed objective response, either complete response (CR) or partial response (PR), observed on two assessments \>= 28 days apart per RECIST v1.1, based on investigator assessment. The analysis population for ORR will be all randomized participants with measurable disease at baseline.

Analysis population: The ITT population was defined as all participants randomized to the Atezolizumab+Gemcitabine+Carboplatin/Cisplatin arm or the Placebo+Gemcitabine+Carboplatin/Cisplatin arm in Stages 1 and 2, whether or not the assigned study treatment was received. The measurable disease populations were defined as participants in the respective ITT populations with at least one measurable lesion according to RECIST v1.1 based on investigator assessment.

Groups in this outcome

Placebo+Gemcitabine+Carboplatin/Cisplatin

Participants received blinded placebo matched to atezolizumab in combination with open-label platinum-based chemotherapy (gemcitabine with either cisplatin or carboplatin).

Atezolizumab+Gemcitabine+Carboplatin/Cisplatin

Participants received blinded atezolizumab in combination with open-label platinum-based chemotherapy (gemcitabine with either cisplatin or carboplatin).

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

Analysis denominator · Participants

GroupSource count
Placebo+Gemcitabine+Carboplatin/Cisplatin397
Atezolizumab+Gemcitabine+Carboplatin/Cisplatin447

Reported measurements

Source class 1
Values in Percentage of Participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Placebo+Gemcitabine+Carboplatin/Cisplatin44.8Not reported39.8749.88Not reported
Atezolizumab+Gemcitabine+Carboplatin/Cisplatin48.1Not reported43.3852.84Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        39.87
        upper Limit
        49.88
        value
        44.8
      2. group Id
        OG001
        lower Limit
        43.38
        upper Limit
        52.84
        value
        48.1
denoms
  1. counts
    1. group Id
      OG000
      value
      397
    2. group Id
      OG001
      value
      447
    units
    Participants
description
Objective response rate (ORR) is defined as the proportion of participants with a confirmed objective response, either complete response (CR) or partial response (PR), observed on two assessments \>= 28 days apart per RECIST v1.1, based on investigator assessment. The analysis population for ORR will be all randomized participants with measurable disease at baseline.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received blinded placebo matched to atezolizumab in combination with open-label platinum-based chemotherapy (gemcitabine with either cisplatin or carboplatin).
    id
    OG000
    title
    Placebo+Gemcitabine+Carboplatin/Cisplatin
  2. description
    Participants received blinded atezolizumab in combination with open-label platinum-based chemotherapy (gemcitabine with either cisplatin or carboplatin).
    id
    OG001
    title
    Atezolizumab+Gemcitabine+Carboplatin/Cisplatin
param Type
NUMBER
population Description
The ITT population was defined as all participants randomized to the Atezolizumab+Gemcitabine+Carboplatin/Cisplatin arm or the Placebo+Gemcitabine+Carboplatin/Cisplatin arm in Stages 1 and 2, whether or not the assigned study treatment was received. The measurable disease populations were defined as participants in the respective ITT populations with at least one measurable lesion according to RECIST v1.1 based on investigator assessment.
reporting Status
POSTED
time Frame
Baseline up to disease progression, death, or loss of follow-up, whichever occurs first (up to approximately 73 months)
title
Objective Response Rate (ORR) in Atezolizumab+Gemcitabine+Carboplatin/Cisplatin Arm Versus Placebo+Gemcitabine+Carboplatin/Cisplatin Arm
type
SECONDARY
unit Of Measure
Percentage of Participants

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

Preserved source evidence · Not medical advice