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NCT02399371 · OUTCOME

Ability of PD-L1 to Predict Response

Pembrolizumab in Treating Patients With Malignant Mesothelioma · Source last updated 2026-05-08

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

Measure
NUMBER
Unit
Youden index
Interval / dispersion
95% Confidence Interval
Time frame
Up to 1 year

What was measured

The Youden Index will be used to determine the optimal threshold for PD-L1 expression in correlation with tumor response. Youden Index ranges from 0-1 with higher scores meaning greater accuracy/sensitivity/specificity calculated from an ROC AUC (sensitivity + specificity - 1 = Youden Index).

Analysis population: Two patients had missing PD-L1 expression data.

Groups in this outcome

Treatment (Pembrolizumab)

Patients receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 24 months in the absence of disease progression or unacceptable toxicity. Patients may be eligible for up to 1 year of additional pembrolizumab therapy if they progress after stopping pembrolizumab. Pembrolizumab: Given IV Laboratory Biomarker Analysis: Correlative studies Pharmacogenomic Study: Correlative studies

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

Analysis denominator · Participants

GroupSource count
Treatment (Pembrolizumab)62

Reported measurements

Source class 1
Values in Youden index · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Treatment (Pembrolizumab)0.377Not reported0.1360.618Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.136
        upper Limit
        0.618
        value
        0.377
denoms
  1. counts
    1. group Id
      OG000
      value
      62
    units
    Participants
description
The Youden Index will be used to determine the optimal threshold for PD-L1 expression in correlation with tumor response. Youden Index ranges from 0-1 with higher scores meaning greater accuracy/sensitivity/specificity calculated from an ROC AUC (sensitivity + specificity - 1 = Youden Index).
dispersion Type
95% Confidence Interval
groups
  1. description
    Patients receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 24 months in the absence of disease progression or unacceptable toxicity. Patients may be eligible for up to 1 year of additional pembrolizumab therapy if they progress after stopping pembrolizumab. Pembrolizumab: Given IV Laboratory Biomarker Analysis: Correlative studies Pharmacogenomic Study: Correlative studies
    id
    OG000
    title
    Treatment (Pembrolizumab)
param Type
NUMBER
population Description
Two patients had missing PD-L1 expression data.
reporting Status
POSTED
time Frame
Up to 1 year
title
Ability of PD-L1 to Predict Response
type
PRIMARY
unit Of Measure
Youden index

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

Preserved source evidence · Not medical advice