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NCT03474107 · OUTCOME

Disease Control Rate (DCR) as Per RECIST V1.1

A Study to Evaluate Enfortumab Vedotin Versus (vs) Chemotherapy in Subjects With Previously Treated Locally Advanced or Metastatic Urothelial Cancer (EV-301) · Source last updated 2026-01-09

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
From randomization until the analysis cut-off date of 15-Jul-2020 (median OS follow-up was 11.10 months)

What was measured

DCR was defined as the percentage of participants with a CR, PR or a stable disease (SD) based on RECIST v1.1. CR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. PR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters. SD was defined as neither sufficient decrease to qualify for PR nor sufficient increase to qualify for progressive disease taking as reference the smallest sum of diameters while on study drug. Progressive disease is defined in PFS1 endpoint. DCR was analysed using exact method based on binomial distribution (Clopper-Pearson). Median time of follow up for DCR was based on data cut-off and is same as median follow-up time for OS.

Analysis population: RES Population

Groups in this outcome

Enfortumab Vedotin 1.25 mg/kg

Participants received 1.25 mg/kg of body weight enfortumab vedotin by IV infusion over approximately 30 minutes on days 1, 8 and 15 of every 28-day cycle. Participants received study treatment until radiological disease progression as determined per investigator assessment or other discontinuation criteria were met or upon study termination, or study completion, whichever occurred first.

Chemotherapy

Participants received either 75 mg/m\^2 docetaxel by IV infusion over approximately 1 hour or 320 mg/m\^2 vinflunine by IV infusion over approximately 20 minutes or 175 mg/m\^2 paclitaxel by IV infusion over approximately 3 hours on day 1 of every 21-day cycle. Participants received study treatment until radiological disease progression as determined per investigator assessment or other discontinuation criteria were met or upon study termination, or study completion, whichever occurred first.

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

Analysis denominator · Participants

GroupSource count
Enfortumab Vedotin 1.25 mg/kg288
Chemotherapy296

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Enfortumab Vedotin 1.25 mg/kg71.9Not reported66.3076.99Not reported
Chemotherapy53.4Not reported47.5259.17Not reported

Source statistical analyses

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

  1. group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.001
    p Value Comment
    Stratification factors were ECOG PS, Region and Liver Metastasis.
    statistical Method
    Stratified Cochran-Mantel-Haenszel
Complete source fields
analyses
  1. group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.001
    p Value Comment
    Stratification factors were ECOG PS, Region and Liver Metastasis.
    statistical Method
    Stratified Cochran-Mantel-Haenszel
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        66.30
        upper Limit
        76.99
        value
        71.9
      2. group Id
        OG001
        lower Limit
        47.52
        upper Limit
        59.17
        value
        53.4
denoms
  1. counts
    1. group Id
      OG000
      value
      288
    2. group Id
      OG001
      value
      296
    units
    Participants
description
DCR was defined as the percentage of participants with a CR, PR or a stable disease (SD) based on RECIST v1.1. CR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. PR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters. SD was defined as neither sufficient decrease to qualify for PR nor sufficient increase to qualify for progressive disease taking as reference the smallest sum of diameters while on study drug. Progressive disease is defined in PFS1 endpoint. DCR was analysed using exact method based on binomial distribution (Clopper-Pearson). Median time of follow up for DCR was based on data cut-off and is same as median follow-up time for OS.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received 1.25 mg/kg of body weight enfortumab vedotin by IV infusion over approximately 30 minutes on days 1, 8 and 15 of every 28-day cycle. Participants received study treatment until radiological disease progression as determined per investigator assessment or other discontinuation criteria were met or upon study termination, or study completion, whichever occurred first.
    id
    OG000
    title
    Enfortumab Vedotin 1.25 mg/kg
  2. description
    Participants received either 75 mg/m\^2 docetaxel by IV infusion over approximately 1 hour or 320 mg/m\^2 vinflunine by IV infusion over approximately 20 minutes or 175 mg/m\^2 paclitaxel by IV infusion over approximately 3 hours on day 1 of every 21-day cycle. Participants received study treatment until radiological disease progression as determined per investigator assessment or other discontinuation criteria were met or upon study termination, or study completion, whichever occurred first.
    id
    OG001
    title
    Chemotherapy
param Type
NUMBER
population Description
RES Population
reporting Status
POSTED
time Frame
From randomization until the analysis cut-off date of 15-Jul-2020 (median OS follow-up was 11.10 months)
title
Disease Control Rate (DCR) as Per RECIST V1.1
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice