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NCT04590963 · OUTCOME

Duration of Response Per RECIST 1.1 in FAS

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
Inter-Quartile Range
Time frame
Baseline (-28 to -1) through 17.5 months (maximum observed duration)

What was measured

The DoR is defined as the time from the date of first documented confirmed response until date of documented progression or death in the absence of disease progression (i.e. date of PFS event or censoring - date of first response + 1). The CR is defined as disappearance of all target and non-target lesions, no new lesions, and normalization of tumor marker level. The PR is defined as at least a 30% decrease in the SoDs of TLs (compared to baseline) and no new lesions. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest previous SoDs (nadir) and the sum must demonstrate an absolute increase of at least 5 mm from nadir or unequivocal progression of existing NTLs or appearance of new lesions. The DoR was analyzed using Kaplan-Meier technique.

Analysis population: The FAS included all participants randomized at least 2 months before the DCO 11May2022 (i.e. on or before 11Mar2022). The DoR is assessed for only those participants who had OR.

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^223
Placebo Q2W + Cetuximab 400 mg/m^217

Reported measurements

Source class 1
Values in Months · Interval/dispersion: Inter-Quartile Range
GroupValueSpreadLowerUpperComment
Monalizumab 750 mg Q2W + Cetuximab 400 mg/m^25.7Not reported5.38.1Not reported
Placebo Q2W + Cetuximab 400 mg/m^25.6Not reported4.4NAThe upper limit of 75th percentile was not reached because there were not enough responders who subsequently progressed or died in this treatment group.
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        5.3
        upper Limit
        8.1
        value
        5.7
      2. comment
        The upper limit of 75th percentile was not reached because there were not enough responders who subsequently progressed or died in this treatment group.
        group Id
        OG001
        lower Limit
        4.4
        upper Limit
        NA
        value
        5.6
denoms
  1. counts
    1. group Id
      OG000
      value
      23
    2. group Id
      OG001
      value
      17
    units
    Participants
description
The DoR is defined as the time from the date of first documented confirmed response until date of documented progression or death in the absence of disease progression (i.e. date of PFS event or censoring - date of first response + 1). The CR is defined as disappearance of all target and non-target lesions, no new lesions, and normalization of tumor marker level. The PR is defined as at least a 30% decrease in the SoDs of TLs (compared to baseline) and no new lesions. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest previous SoDs (nadir) and the sum must demonstrate an absolute increase of at least 5 mm from nadir or unequivocal progression of existing NTLs or appearance of new lesions. The DoR was analyzed using Kaplan-Meier technique.
dispersion Type
Inter-Quartile Range
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 FAS included all participants randomized at least 2 months before the DCO 11May2022 (i.e. on or before 11Mar2022). The DoR is assessed for only those participants who had OR.
reporting Status
POSTED
time Frame
Baseline (-28 to -1) through 17.5 months (maximum observed duration)
title
Duration of Response Per RECIST 1.1 in FAS
type
SECONDARY
unit Of Measure
Months

Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f

Preserved source evidence · Not medical advice