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NCT05386550 · OUTCOME

Disease-Free Survival (DFS)

Phase III Xevinapant (Debio 1143) and Radiotherapy in Resected LA SCCHN, High Risk, Cisplatin-ineligible Participants (XRAY VISION) · Source last updated 2026-02-19

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
MEDIAN
Unit
months
Interval / dispersion
Full Range
Time frame
Time from randomization to the first occurrence of death from any cause or objective disease recurrence, assessed up to 22.7 months

What was measured

DFS defined as the time from randomization to the first occurrence of any of the following events: Death from any cause; Objective Disease Recurrence (earlier date of first imaging or biopsy collection confirming event at a DFS assessment): Local or regional relapse which is subsequently confirmed by histopathology unless medically contraindicated or medical risk of biopsy deemed too high: Distant metastases. Confirmation of pathology is recommended in case of solitary metastasis (especially in the lung) after considering potential contraindication and/or medical risk associated with biopsy. DFS time was estimated according to Kaplan-Meier method.

Analysis population: Full Analysis Set (FAS) included all participants who were randomized to study treatment.

Groups in this outcome

Xevinapant +IMRT

Participants received 3 cycles of oral solution of Xevinapant at a dose of 200 milligrams per day (mg/day) once daily from Day 1 to 14, per 3-week cycle in combination with 66 Gray (Gy) of intensity modulated radiation therapy (IMRT) in 33 fractions, 2 Gy/fraction, 5 days/week followed by 3 cycles of monotherapy of Xevinapant at a dose of 200 mg/day from Day 1 to 14, per 3-week cycle (Each cycle is of 3 weeks).

Placebo +IMRT

Participants received 3 cycles of oral solution of placebo matched to Xevinapant once daily from Day 1 to 14 per 3-week cycle in combination with with 66 Gray (Gy) of intensity modulated radiation therapy (IMRT) in 33 fractions, 2 Gy/fraction, 5 days/week followed by 3 cycles of monotherapy of placebo matched to Xevinapant from Day 1 to 14, per 3-week cycle (Each cycle is of 3 weeks).

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

Analysis denominator · Participants

GroupSource count
Xevinapant +IMRT81
Placebo +IMRT85

Reported measurements

Source class 1
Values in months · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Xevinapant +IMRT11.10Not reported0.0319.32Not reported
Placebo +IMRT7.29Not reported0.0314.65Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.03
        upper Limit
        19.32
        value
        11.10
      2. group Id
        OG001
        lower Limit
        0.03
        upper Limit
        14.65
        value
        7.29
denoms
  1. counts
    1. group Id
      OG000
      value
      81
    2. group Id
      OG001
      value
      85
    units
    Participants
description
DFS defined as the time from randomization to the first occurrence of any of the following events: Death from any cause; Objective Disease Recurrence (earlier date of first imaging or biopsy collection confirming event at a DFS assessment): Local or regional relapse which is subsequently confirmed by histopathology unless medically contraindicated or medical risk of biopsy deemed too high: Distant metastases. Confirmation of pathology is recommended in case of solitary metastasis (especially in the lung) after considering potential contraindication and/or medical risk associated with biopsy. DFS time was estimated according to Kaplan-Meier method.
dispersion Type
Full Range
groups
  1. description
    Participants received 3 cycles of oral solution of Xevinapant at a dose of 200 milligrams per day (mg/day) once daily from Day 1 to 14, per 3-week cycle in combination with 66 Gray (Gy) of intensity modulated radiation therapy (IMRT) in 33 fractions, 2 Gy/fraction, 5 days/week followed by 3 cycles of monotherapy of Xevinapant at a dose of 200 mg/day from Day 1 to 14, per 3-week cycle (Each cycle is of 3 weeks).
    id
    OG000
    title
    Xevinapant +IMRT
  2. description
    Participants received 3 cycles of oral solution of placebo matched to Xevinapant once daily from Day 1 to 14 per 3-week cycle in combination with with 66 Gray (Gy) of intensity modulated radiation therapy (IMRT) in 33 fractions, 2 Gy/fraction, 5 days/week followed by 3 cycles of monotherapy of placebo matched to Xevinapant from Day 1 to 14, per 3-week cycle (Each cycle is of 3 weeks).
    id
    OG001
    title
    Placebo +IMRT
param Type
MEDIAN
population Description
Full Analysis Set (FAS) included all participants who were randomized to study treatment.
reporting Status
POSTED
time Frame
Time from randomization to the first occurrence of death from any cause or objective disease recurrence, assessed up to 22.7 months
title
Disease-Free Survival (DFS)
type
PRIMARY
unit Of Measure
months

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Preserved source evidence · Not medical advice