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NCT02702414 · OUTCOME

Objective Response Rate (ORR)

Study of Pembrolizumab (MK-3475) as Monotherapy in Participants With Advanced Hepatocellular Carcinoma (MK-3475-224/KEYNOTE-224) · Source last updated 2024-09-04

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

Measure
NUMBER
Unit
Percentage of participants
Interval / dispersion
95% Confidence Interval
Time frame
Up to approximately 34 months for Cohort 1 and up to approximately 28 months for Cohort 2

What was measured

ORR was defined as the percentage of participants who had a confirmed Complete Response (CR: Disappearance of all target and non-target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target and non-target lesions) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as assessed by blinded central imaging vendor. Participants with missing data were considered non-responders. The percentage of participants who experienced a CR or PR per RECIST 1.1 is presented.

Analysis population: All participants who received at least one dose of study treatment during the first course of therapy.

Groups in this outcome

Cohort 1: HCC-Prior Systemic Therapy With Sorafenib

Participants with previously systemically treated HCC received a pembrolizumab 200 mg IV infusion on Day 1 of each 3-week cycle for up to 35 administrations. Participants who stopped pembrolizumab as a result of obtaining a confirmed complete response (CR) or those who stopped after receiving 35 trial treatments were eligible for an additional 17 trial treatments (approximately an additional 1 year of treatment) after progressive disease if they met the criteria for re-treatment.

Cohort 2: HCC-Systemic Therapy Naïve

Participants with HCC who had not received treatment for systemic disease received a pembrolizumab 200 mg IV infusion on Day 1 of each 3-week cycle for up to 35 administrations. Participants who stopped pembrolizumab as a result of obtaining a confirmed complete response (CR) or those who stopped after receiving 35 trial treatments were eligible for an additional 17 trial treatments (approximately an additional 1 year of treatment) after progressive disease if they met the criteria for re-treatment.

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

Analysis denominator · Participants

GroupSource count
Cohort 1: HCC-Prior Systemic Therapy With Sorafenib104
Cohort 2: HCC-Systemic Therapy Naïve51

Reported measurements

Source class 1
Values in Percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Cohort 1: HCC-Prior Systemic Therapy With Sorafenib18.3Not reported11.427.1Not reported
Cohort 2: HCC-Systemic Therapy Naïve15.7Not reported7.028.6Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        11.4
        upper Limit
        27.1
        value
        18.3
      2. group Id
        OG001
        lower Limit
        7.0
        upper Limit
        28.6
        value
        15.7
denoms
  1. counts
    1. group Id
      OG000
      value
      104
    2. group Id
      OG001
      value
      51
    units
    Participants
description
ORR was defined as the percentage of participants who had a confirmed Complete Response (CR: Disappearance of all target and non-target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target and non-target lesions) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as assessed by blinded central imaging vendor. Participants with missing data were considered non-responders. The percentage of participants who experienced a CR or PR per RECIST 1.1 is presented.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants with previously systemically treated HCC received a pembrolizumab 200 mg IV infusion on Day 1 of each 3-week cycle for up to 35 administrations. Participants who stopped pembrolizumab as a result of obtaining a confirmed complete response (CR) or those who stopped after receiving 35 trial treatments were eligible for an additional 17 trial treatments (approximately an additional 1 year of treatment) after progressive disease if they met the criteria for re-treatment.
    id
    OG000
    title
    Cohort 1: HCC-Prior Systemic Therapy With Sorafenib
  2. description
    Participants with HCC who had not received treatment for systemic disease received a pembrolizumab 200 mg IV infusion on Day 1 of each 3-week cycle for up to 35 administrations. Participants who stopped pembrolizumab as a result of obtaining a confirmed complete response (CR) or those who stopped after receiving 35 trial treatments were eligible for an additional 17 trial treatments (approximately an additional 1 year of treatment) after progressive disease if they met the criteria for re-treatment.
    id
    OG001
    title
    Cohort 2: HCC-Systemic Therapy Naïve
param Type
NUMBER
population Description
All participants who received at least one dose of study treatment during the first course of therapy.
reporting Status
POSTED
time Frame
Up to approximately 34 months for Cohort 1 and up to approximately 28 months for Cohort 2
title
Objective Response Rate (ORR)
type
PRIMARY
unit Of Measure
Percentage of participants

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Preserved source evidence · Not medical advice