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NCT04099251 · OUTCOME

Number of Participants Experiencing Serious Adverse Events (SAEs)

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
COUNT_OF_PARTICIPANTS
Unit
Participants
Interval / dispersion
Not reported
Time frame
From first dose up to 30 days post last dose of the blinded phase (up to 13 months)

What was measured

A Serious Adverse Events (SAE) is defined as any untoward or unfavorable medical occurrence in a participants that results in death, is life threatening, or places the participant at immediate risk of death from the event as it occurred, requires or prolongs hospitalization, causes persistent or significant disability or incapacity, results in congenital anomalies or birth defects, and is another condition which investigators judge to represent significant hazards.

Analysis population: All treated 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
Nivolumab524
Placebo264

Reported measurements

Source class 1
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Nivolumab74Not reportedNot reportedNot reportedNot reported
Placebo29Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        74
      2. group Id
        OG001
        value
        29
denoms
  1. counts
    1. group Id
      OG000
      value
      524
    2. group Id
      OG001
      value
      264
    units
    Participants
description
A Serious Adverse Events (SAE) is defined as any untoward or unfavorable medical occurrence in a participants that results in death, is life threatening, or places the participant at immediate risk of death from the event as it occurred, requires or prolongs hospitalization, causes persistent or significant disability or incapacity, results in congenital anomalies or birth defects, and is another condition which investigators judge to represent significant hazards.
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
COUNT_OF_PARTICIPANTS
population Description
All treated participants
reporting Status
POSTED
time Frame
From first dose up to 30 days post last dose of the blinded phase (up to 13 months)
title
Number of Participants Experiencing Serious Adverse Events (SAEs)
type
SECONDARY
unit Of Measure
Participants

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

Preserved source evidence · Not medical advice