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NCT04590963 · OUTCOME

Overall Survival (OS) in Human Papillomavirus (HPV)-Unrelated Analysis Set

Assessment of Efficacy and Safety of Monalizumab Plus Cetuximab Compared to Placebo Plus Cetuximab in Recurrent or Metastatic Head and Neck Cancer · Source last updated 2026-09-09

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
Baseline (-28 to -1) through 17.5 months (maximum observed duration)

What was measured

The OS is defined as time from the date of randomization until death due to any cause regardless of whether the participant withdraws from randomized therapy or receives another anti-cancer therapy (i.e. date of death or censoring - date of randomization + 1). The OS was analyzed using Kaplan-Meier technique. Statistical analysis was performed using P-value from a stratified log-rank test and hazard ratio (HR) and confidence intervals (CIs) from a stratified Cox proportional hazards model. Analyses were stratified on World Health Organization/ Eastern Cooperative Oncology Group performance status (WHO/ECOG PS) (0 or 1) and number of prior lines of therapy in recurrent or metastatic (R/M) setting (1 or 2).

Analysis population: The HPV-unrelated analysis set included all participants who were randomized at least 2 months before the 11May2022 DCO (i.e. on or before 11Mar2022) and were either oropharyngeal cancer (OPC) HPV negative or non OPC regardless of the HPV status.

Groups in this outcome

Monalizumab 750 mg Q2W + Cetuximab 400 mg/m^2

Participants received IV monalizumab 750 mg Q2W and IV cetuximab 400 mg/m\^2 initial dose followed by 250 mg/m\^2 Q1W until disease progression, unacceptable toxicity, withdrawal of consent, or another discontinuation criterion was met.

Placebo Q2W + Cetuximab 400 mg/m^2

Participants receieved IV placebo matched to monalizumab Q2W and IV cetuximab 400 mg/m\^2 initial dose followed by 250 mg/m\^2 Q1W until disease progression, unacceptable toxicity, withdrawal of consent, or another discontinuation criterion was met.

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

Analysis denominator · Participants

GroupSource count
Monalizumab 750 mg Q2W + Cetuximab 400 mg/m^2145
Placebo Q2W + Cetuximab 400 mg/m^271

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Monalizumab 750 mg Q2W + Cetuximab 400 mg/m^28.8Not reported6.910.4Not reported
Placebo Q2W + Cetuximab 400 mg/m^28.6Not reported6.014.5Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.660
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.537
    estimate Comment
    HR and CIs were calculated using a stratified Cox proportional hazards model, adjusted for WHO/ECOG PS, and number of lines of prior therapy in R/M setting.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.989
    param Type
    Hazard Ratio (HR)
    param Value
    1.00
    statistical Comment
    P-value was calculated using stratified log-rank test, adjusted for WHO/ECOG PS (0/1) and number of prior lines of therapy in R/M setting.
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.660
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.537
    estimate Comment
    HR and CIs were calculated using a stratified Cox proportional hazards model, adjusted for WHO/ECOG PS, and number of lines of prior therapy in R/M setting.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.989
    param Type
    Hazard Ratio (HR)
    param Value
    1.00
    statistical Comment
    P-value was calculated using stratified log-rank test, adjusted for WHO/ECOG PS (0/1) and number of prior lines of therapy in R/M setting.
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        6.9
        upper Limit
        10.4
        value
        8.8
      2. group Id
        OG001
        lower Limit
        6.0
        upper Limit
        14.5
        value
        8.6
denoms
  1. counts
    1. group Id
      OG000
      value
      145
    2. group Id
      OG001
      value
      71
    units
    Participants
description
The OS is defined as time from the date of randomization until death due to any cause regardless of whether the participant withdraws from randomized therapy or receives another anti-cancer therapy (i.e. date of death or censoring - date of randomization + 1). The OS was analyzed using Kaplan-Meier technique. Statistical analysis was performed using P-value from a stratified log-rank test and hazard ratio (HR) and confidence intervals (CIs) from a stratified Cox proportional hazards model. Analyses were stratified on World Health Organization/ Eastern Cooperative Oncology Group performance status (WHO/ECOG PS) (0 or 1) and number of prior lines of therapy in recurrent or metastatic (R/M) setting (1 or 2).
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received IV monalizumab 750 mg Q2W and IV cetuximab 400 mg/m\^2 initial dose followed by 250 mg/m\^2 Q1W until disease progression, unacceptable toxicity, withdrawal of consent, or another discontinuation criterion was met.
    id
    OG000
    title
    Monalizumab 750 mg Q2W + Cetuximab 400 mg/m^2
  2. description
    Participants receieved IV placebo matched to monalizumab Q2W and IV cetuximab 400 mg/m\^2 initial dose followed by 250 mg/m\^2 Q1W until disease progression, unacceptable toxicity, withdrawal of consent, or another discontinuation criterion was met.
    id
    OG001
    title
    Placebo Q2W + Cetuximab 400 mg/m^2
param Type
MEDIAN
population Description
The HPV-unrelated analysis set included all participants who were randomized at least 2 months before the 11May2022 DCO (i.e. on or before 11Mar2022) and were either oropharyngeal cancer (OPC) HPV negative or non OPC regardless of the HPV status.
reporting Status
POSTED
time Frame
Baseline (-28 to -1) through 17.5 months (maximum observed duration)
title
Overall Survival (OS) in Human Papillomavirus (HPV)-Unrelated Analysis Set
type
PRIMARY
unit Of Measure
Months

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Preserved source evidence · Not medical advice