Skip to content
← Full study record

NCT03474107 · OUTCOME

Overall Survival (OS)

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
MEDIAN
Unit
months
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

OS was defined as the time from the date of randomization until the documented date of death from any cause. OS was analyzed using Kaplan-Meier estimates. Participants who were still alive at the time of data cutoff date were to be censored at the last known alive date or at the data cutoff date, whichever was earlier.

Analysis population: FAS 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/kg301
Chemotherapy307

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Enfortumab Vedotin 1.25 mg/kg12.88Not reported10.5815.21Not reported
Chemotherapy8.97Not reported8.0510.74Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.556
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.886
    estimate Comment
    Cox proportional hazards model with treatment, ECOG PS, geographic region and liver metastasis as the explanatory variables.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.00142
    p Value Comment
    Stratification factors were ECOG PS, geographic region and liver metastasis. P-value was based on log-rank test. P-value of overall survival is ≤ the predetermined 1-sided significance level of 0.00679 based on the number of observed deaths.
    param Type
    Stratified Hazard Ratio
    param Value
    0.702
    statistical Method
    Stratified Log rank
Complete source fields
analyses
  1. ci Lower Limit
    0.556
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.886
    estimate Comment
    Cox proportional hazards model with treatment, ECOG PS, geographic region and liver metastasis as the explanatory variables.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.00142
    p Value Comment
    Stratification factors were ECOG PS, geographic region and liver metastasis. P-value was based on log-rank test. P-value of overall survival is ≤ the predetermined 1-sided significance level of 0.00679 based on the number of observed deaths.
    param Type
    Stratified Hazard Ratio
    param Value
    0.702
    statistical Method
    Stratified Log rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        10.58
        upper Limit
        15.21
        value
        12.88
      2. group Id
        OG001
        lower Limit
        8.05
        upper Limit
        10.74
        value
        8.97
denoms
  1. counts
    1. group Id
      OG000
      value
      301
    2. group Id
      OG001
      value
      307
    units
    Participants
description
OS was defined as the time from the date of randomization until the documented date of death from any cause. OS was analyzed using Kaplan-Meier estimates. Participants who were still alive at the time of data cutoff date were to be censored at the last known alive date or at the data cutoff date, whichever was earlier.
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
MEDIAN
population Description
FAS 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
Overall Survival (OS)
type
PRIMARY
unit Of Measure
months

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

Preserved source evidence · Not medical advice