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NCT04099251 · OUTCOME

Recurrence Free Survival (RFS)

Effectiveness Study of Nivolumab Compared to Placebo in Prevention of Recurrent Melanoma After Complete Resection of Stage IIB/C Melanoma · Source last updated 2026-08-07

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 up to the date of first recurrence, new primary melanoma, or death (whatever the cause), whichever occurs first (up to 32 months)

What was measured

Recurrence Free Survival (RFS) is defined as the time between the date of randomization and the date of first recurrence (local, regional or distant metastasis), new primary melanoma (including melanoma in situ), or death (whatever the cause), whichever occurs first. For participants who remain alive and whose disease has not recurred or did not die, RFS will be censored on the date of last evaluable disease assessment. For those participants who remained alive and had no recorded post-randomization tumor assessment, RFS will be censored on the day of randomization.

Analysis population: All randomized participants

Groups in this outcome

Nivolumab

Participants received 480 mg IV Nivolumab in an approximately 30-minute infusion on Day 1 of each 4-week treatment cycle until unacceptable toxicity, withdrawal of consent, completion of 12 months of treatment (from first dose of study treatment), disease recurrence, or the study ends, whichever occurred first. Participants began study treatment (Cycle 1) within 3 calendar days of randomization. Subsequent cycles were initiated within ± 3 days of the target visit date.

Placebo

Nivolumab matched placebo (0.9% Sodium Chloride for Injection/5% Dextrose for Injection) IV in a 30-minute infusion on Day 1 of each 4-week treatment cycle until unacceptable toxicity, withdrawal of consent, completion of 12 months of treatment (from first dose of study treatment), disease recurrence, or the study ends, whichever occurred first. In the event of disease recurrence, participants on the blinded nivolumab or placebo portion will be offered the option to receive open-label on-protocol nivolumab treatment. Participants received 480 mg IV Nivolumab in a 30-minute infusion on Day 1 of each 4-week treatment cycle until unacceptable toxicity, recurrence/progression, withdrawal of consent, completion of 12 months of treatment from first dose of open-label study treatment, 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
Nivolumab526
Placebo264

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
NivolumabNANot reported28.52NAMedian and upper limit not calculated due to insufficient number of events.
PlaceboNANot reported21.62NAMedian and upper limit not calculated due to insufficient number of events.

Source statistical analyses

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

  1. ci Lower Limit
    0.30
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.59
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    < 0.0001
    param Type
    Hazard Ratio (HR)
    param Value
    0.42
    statistical Method
    Regression, Cox
Complete source fields
analyses
  1. ci Lower Limit
    0.30
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.59
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    < 0.0001
    param Type
    Hazard Ratio (HR)
    param Value
    0.42
    statistical Method
    Regression, Cox
classes
  1. categories
    1. measurements
      1. comment
        Median and upper limit not calculated due to insufficient number of events.
        group Id
        OG000
        lower Limit
        28.52
        upper Limit
        NA
        value
        NA
      2. comment
        Median and upper limit not calculated due to insufficient number of events.
        group Id
        OG001
        lower Limit
        21.62
        upper Limit
        NA
        value
        NA
denoms
  1. counts
    1. group Id
      OG000
      value
      526
    2. group Id
      OG001
      value
      264
    units
    Participants
description
Recurrence Free Survival (RFS) is defined as the time between the date of randomization and the date of first recurrence (local, regional or distant metastasis), new primary melanoma (including melanoma in situ), or death (whatever the cause), whichever occurs first. For participants who remain alive and whose disease has not recurred or did not die, RFS will be censored on the date of last evaluable disease assessment. For those participants who remained alive and had no recorded post-randomization tumor assessment, RFS will be censored on the day of randomization.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received 480 mg IV Nivolumab in an approximately 30-minute infusion on Day 1 of each 4-week treatment cycle until unacceptable toxicity, withdrawal of consent, completion of 12 months of treatment (from first dose of study treatment), disease recurrence, or the study ends, whichever occurred first. Participants began study treatment (Cycle 1) within 3 calendar days of randomization. Subsequent cycles were initiated within ± 3 days of the target visit date.
    id
    OG000
    title
    Nivolumab
  2. description
    Nivolumab matched placebo (0.9% Sodium Chloride for Injection/5% Dextrose for Injection) IV in a 30-minute infusion on Day 1 of each 4-week treatment cycle until unacceptable toxicity, withdrawal of consent, completion of 12 months of treatment (from first dose of study treatment), disease recurrence, or the study ends, whichever occurred first. In the event of disease recurrence, participants on the blinded nivolumab or placebo portion will be offered the option to receive open-label on-protocol nivolumab treatment. Participants received 480 mg IV Nivolumab in a 30-minute infusion on Day 1 of each 4-week treatment cycle until unacceptable toxicity, recurrence/progression, withdrawal of consent, completion of 12 months of treatment from first dose of open-label study treatment, whichever occurred first.
    id
    OG001
    title
    Placebo
param Type
MEDIAN
population Description
All randomized participants
reporting Status
POSTED
time Frame
From randomization up to the date of first recurrence, new primary melanoma, or death (whatever the cause), whichever occurs first (up to 32 months)
title
Recurrence Free Survival (RFS)
type
PRIMARY
unit Of Measure
Months

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Preserved source evidence · Not medical advice