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NCT03255018 · OUTCOME

Duration of Response for Participants Who Respond to Pembrolizumab

Pembrolizumab in Relapsed and Refractory Gray-Zone Lymphoma (GZL), Primary Central Nervous System Lymphoma (PCNSL), and Other Extranodal Diffuse Large B-cell Lymphomas · Source last updated 2023-11-28

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
every 3-6 months for 24 months

What was measured

DOR is beginning at the date clinical response is first identified; measured from the time measurement criteria are met for complete response or partial response (whichever is first recorded) until the first date that recurrent or progressive disease is documented and will be estimated for each of the two types of lymphoma individually using Kaplan-Meier curves with appropriate confidence intervals reported. Response was assessed by the International Working Group response criteria (Cheson et al.). Complete response is \<1 cm lymph nodes/lymph node masses, and normal bone marrow/physical exam (PE); unconfirmed complete response is \>1 cm lymph nodes and \>75% decrease lymph node masses, normal PE and indeterminate in bone marrow; partial response is ≥50% decrease in lymph nodes/lymph node masses, decrease in liver/spleen and irrelevant in bone marrow; and progression is \>50% new or increased lymph node masses/lymph nodes, enlarging liver/spleen, and reappearance in bone marrow.

Analysis population: 9/10 participants are analyzed in the DLBCL cohort because 1 participant was not evaluable due to withdrawal of consent prior to treatment.

Groups in this outcome

Cohort 1 Gray-Zone Lymphoma (GZL)

Cohort 1: B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma and classical Hodgkin lymphoma (i.e., Gray-zone lymphoma or GZL) Participants will be treated with pembrolizumab 200 mg (flat dose) intravenous (IV) every 3 weeks provided they have clinical benefit and no unacceptable toxicity; participants who achieve a complete response (CR) will have the option to stop after 1 year of therapy.

Cohort 2 Extra-nodal Diffuse Large B-cell Lymphoma (DLBCL)

Cohort 2: Extra-nodal diffuse large B-cell lymphoma involving one or more of the specified extra-nodal sites (i.e., extra-nodal DLBCL) Participants will be treated with pembrolizumab 200 mg (flat dose) intravenous (IV) every 3 weeks provided they have clinical benefit and no unacceptable toxicity; participants who achieve a complete response (CR) will have the option to stop after 1 year of therapy.

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 Gray-Zone Lymphoma (GZL)2
Cohort 2 Extra-nodal Diffuse Large B-cell Lymphoma (DLBCL)9

Reported measurements

Source class 1
Values in Months · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Cohort 1 Gray-Zone Lymphoma (GZL)18.25Not reported036.5Not reported
Cohort 2 Extra-nodal Diffuse Large B-cell Lymphoma (DLBCL)0.9Not reported00.9Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0
        upper Limit
        36.5
        value
        18.25
      2. group Id
        OG001
        lower Limit
        0
        upper Limit
        0.9
        value
        0.9
denoms
  1. counts
    1. group Id
      OG000
      value
      2
    2. group Id
      OG001
      value
      9
    units
    Participants
description
DOR is beginning at the date clinical response is first identified; measured from the time measurement criteria are met for complete response or partial response (whichever is first recorded) until the first date that recurrent or progressive disease is documented and will be estimated for each of the two types of lymphoma individually using Kaplan-Meier curves with appropriate confidence intervals reported. Response was assessed by the International Working Group response criteria (Cheson et al.). Complete response is \<1 cm lymph nodes/lymph node masses, and normal bone marrow/physical exam (PE); unconfirmed complete response is \>1 cm lymph nodes and \>75% decrease lymph node masses, normal PE and indeterminate in bone marrow; partial response is ≥50% decrease in lymph nodes/lymph node masses, decrease in liver/spleen and irrelevant in bone marrow; and progression is \>50% new or increased lymph node masses/lymph nodes, enlarging liver/spleen, and reappearance in bone marrow.
dispersion Type
Full Range
groups
  1. description
    Cohort 1: B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma and classical Hodgkin lymphoma (i.e., Gray-zone lymphoma or GZL) Participants will be treated with pembrolizumab 200 mg (flat dose) intravenous (IV) every 3 weeks provided they have clinical benefit and no unacceptable toxicity; participants who achieve a complete response (CR) will have the option to stop after 1 year of therapy.
    id
    OG000
    title
    Cohort 1 Gray-Zone Lymphoma (GZL)
  2. description
    Cohort 2: Extra-nodal diffuse large B-cell lymphoma involving one or more of the specified extra-nodal sites (i.e., extra-nodal DLBCL) Participants will be treated with pembrolizumab 200 mg (flat dose) intravenous (IV) every 3 weeks provided they have clinical benefit and no unacceptable toxicity; participants who achieve a complete response (CR) will have the option to stop after 1 year of therapy.
    id
    OG001
    title
    Cohort 2 Extra-nodal Diffuse Large B-cell Lymphoma (DLBCL)
param Type
MEDIAN
population Description
9/10 participants are analyzed in the DLBCL cohort because 1 participant was not evaluable due to withdrawal of consent prior to treatment.
reporting Status
POSTED
time Frame
every 3-6 months for 24 months
title
Duration of Response for Participants Who Respond to Pembrolizumab
type
SECONDARY
unit Of Measure
Months

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

Preserved source evidence · Not medical advice