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NCT02586207 · OUTCOME

Evaluation of the Efficacy of Pembrolizumab Given in Combination With Definitive CRT by Determining the Number of Participants With Complete Response at Treatment End (Day 150)

Pembrolizumab in Combination With CRT for LA-SCCHN · Source last updated 2025-10-07

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
Day 150 (post treatment imaging)

What was measured

Response was determined using a composite end point of overall end-of-treatment (EOT) complete response (CR) at day 150 (approximately 12 weeks after completion of chemoradiotherapy) by CT of the neck (RECIST 1.1). Optional positron emission tomography (PET) imaging was allowed rather than neck dissection if CT could not confirm CR. Complete metabolic response was assessed using Hopkins score of 1, 2, or 3 on PET imaging. For those without an imaging CR, pathologic confirmation was recommend (but not required) by selective neck dissection and/or directed biopsy of the suspected active disease site. If pathologic evaluation of the potential disease site confirmed no residual invasive or in situ cancer, the patient was determined to have a pathologic CR. In cases with both an imaging CR and pathologic response assessment, the pathologic response defined final overall response. Therefore, patients with a final EOT CR included those with either an imaging (CT or PET) or pathologic CR.

Groups in this outcome

Single Arm

Pembrolizumab + Cisplatin + Radiation pembrolizumab (MK-3475): 200mg IV on days -7(loading dose), 15, 36, 57, 78, 99, 120, 141. Cisplatin: Cisplatin 40 mg/m2 IV on days 1, 8, 15, 22, 29, 36 Radiation: 70 Gy fractionated over 35 days

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

Analysis denominator · Participants

GroupSource count
Single Arm57

Reported measurements

Source class 1
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Single Arm47Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        47
denoms
  1. counts
    1. group Id
      OG000
      value
      57
    units
    Participants
description
Response was determined using a composite end point of overall end-of-treatment (EOT) complete response (CR) at day 150 (approximately 12 weeks after completion of chemoradiotherapy) by CT of the neck (RECIST 1.1). Optional positron emission tomography (PET) imaging was allowed rather than neck dissection if CT could not confirm CR. Complete metabolic response was assessed using Hopkins score of 1, 2, or 3 on PET imaging. For those without an imaging CR, pathologic confirmation was recommend (but not required) by selective neck dissection and/or directed biopsy of the suspected active disease site. If pathologic evaluation of the potential disease site confirmed no residual invasive or in situ cancer, the patient was determined to have a pathologic CR. In cases with both an imaging CR and pathologic response assessment, the pathologic response defined final overall response. Therefore, patients with a final EOT CR included those with either an imaging (CT or PET) or pathologic CR.
groups
  1. description
    Pembrolizumab + Cisplatin + Radiation pembrolizumab (MK-3475): 200mg IV on days -7(loading dose), 15, 36, 57, 78, 99, 120, 141. Cisplatin: Cisplatin 40 mg/m2 IV on days 1, 8, 15, 22, 29, 36 Radiation: 70 Gy fractionated over 35 days
    id
    OG000
    title
    Single Arm
param Type
COUNT_OF_PARTICIPANTS
reporting Status
POSTED
time Frame
Day 150 (post treatment imaging)
title
Evaluation of the Efficacy of Pembrolizumab Given in Combination With Definitive CRT by Determining the Number of Participants With Complete Response at Treatment End (Day 150)
type
SECONDARY
unit Of Measure
Participants

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

Preserved source evidence · Not medical advice