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NCT04221945 · OUTCOME

Number of Participants Who Experience One or More Adverse Events (AEs)

Study of Chemoradiotherapy With or Without Pembrolizumab (MK-3475) For The Treatment of Locally Advanced Cervical Cancer (MK-3475-A18/KEYNOTE-A18/ENGOT-cx11/GOG-3047) · Source last updated 2026-02-20

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
Up to 55 months

What was measured

An AE is defined as any unfavorable and unintended sign, symptom, disease, or worsening of preexisting condition temporally associated with study treatment and irrespective of causality to study treatment.

Analysis population: All randomized participants who received at least 1 dose of study treatment.

Groups in this outcome

Chemoradiotherapy + Pembrolizumab

Participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of each 3-week cycle (Q3W) for 5 cycles followed by pembrolizumab 400 mg IV on Day 1 of each 6-week cycle (Q6W) for an additional 15 cycles. During the Q3W dosing period of pembrolizumab, participants received concurrent chemoradiotherapy. The standard of care chemoradiotherapy regimen includes cisplatin 40 mg/m\^2 IV once per week (QW) for 5 or 6 weeks plus external beam radiotherapy (EBRT) followed by brachytherapy with minimum total radiotherapy dose of 80 Gray Units (Gy) for volume-directed and 75 Gy for point-directed given with the total duration of radiation treatment not to exceed 50 days (with an extension to a maximum of 56 days for unforeseen delays).

Chemoradiotherapy + Placebo for Pembrolizumab

Participants received placebo for pembrolizumab IV on Day 1 of each 3-week cycle (Q3W) for 5 cycles followed by placebo IV on Day 1 of each 6-week cycle (Q6W) for an additional 15 cycles. During the Q3W dosing period of placebo, participants received concurrent chemoradiotherapy. The standard of care chemoradiotherapy regimen includes cisplatin 40 mg/m\^2 IV once per week (QW) for 5 or 6 weeks plus external beam radiotherapy (EBRT) followed by brachytherapy with minimum total radiotherapy dose of 80 Gray Units (Gy) for volume-directed and 75 Gy for point-directed given with the total duration of radiation treatment not to exceed 50 days (with an extension to a maximum of 56 days for unforeseen delays).

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

Analysis denominator · Participants

GroupSource count
Chemoradiotherapy + Pembrolizumab528
Chemoradiotherapy + Placebo for Pembrolizumab530

Reported measurements

Source class 1
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Chemoradiotherapy + Pembrolizumab528Not reportedNot reportedNot reportedNot reported
Chemoradiotherapy + Placebo for Pembrolizumab526Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        528
      2. group Id
        OG001
        value
        526
denoms
  1. counts
    1. group Id
      OG000
      value
      528
    2. group Id
      OG001
      value
      530
    units
    Participants
description
An AE is defined as any unfavorable and unintended sign, symptom, disease, or worsening of preexisting condition temporally associated with study treatment and irrespective of causality to study treatment.
groups
  1. description
    Participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of each 3-week cycle (Q3W) for 5 cycles followed by pembrolizumab 400 mg IV on Day 1 of each 6-week cycle (Q6W) for an additional 15 cycles. During the Q3W dosing period of pembrolizumab, participants received concurrent chemoradiotherapy. The standard of care chemoradiotherapy regimen includes cisplatin 40 mg/m\^2 IV once per week (QW) for 5 or 6 weeks plus external beam radiotherapy (EBRT) followed by brachytherapy with minimum total radiotherapy dose of 80 Gray Units (Gy) for volume-directed and 75 Gy for point-directed given with the total duration of radiation treatment not to exceed 50 days (with an extension to a maximum of 56 days for unforeseen delays).
    id
    OG000
    title
    Chemoradiotherapy + Pembrolizumab
  2. description
    Participants received placebo for pembrolizumab IV on Day 1 of each 3-week cycle (Q3W) for 5 cycles followed by placebo IV on Day 1 of each 6-week cycle (Q6W) for an additional 15 cycles. During the Q3W dosing period of placebo, participants received concurrent chemoradiotherapy. The standard of care chemoradiotherapy regimen includes cisplatin 40 mg/m\^2 IV once per week (QW) for 5 or 6 weeks plus external beam radiotherapy (EBRT) followed by brachytherapy with minimum total radiotherapy dose of 80 Gray Units (Gy) for volume-directed and 75 Gy for point-directed given with the total duration of radiation treatment not to exceed 50 days (with an extension to a maximum of 56 days for unforeseen delays).
    id
    OG001
    title
    Chemoradiotherapy + Placebo for Pembrolizumab
param Type
COUNT_OF_PARTICIPANTS
population Description
All randomized participants who received at least 1 dose of study treatment.
reporting Status
POSTED
time Frame
Up to 55 months
title
Number of Participants Who Experience One or More Adverse Events (AEs)
type
SECONDARY
unit Of Measure
Participants

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

Preserved source evidence · Not medical advice