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NCT02327078 · OUTCOME

Phase 2: Duration of Disease Control, Defined as CR, PR, and Stable Disease (SD)

A Study of the Safety, Tolerability, and Efficacy of Epacadostat Administered in Combination With Nivolumab in Select Advanced Cancers (ECHO-204) · Source last updated 2025-08-14

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

Measure
MEDIAN
Unit
months
Interval / dispersion
95% Confidence Interval
Time frame
From first dose up end of the study (up to approximately 6 years)

What was measured

Duration of disease control is the time from the first dose to the first objective response of PD, or death, whichever occurs first, for participants who reported a best overall response of SD or better. PD was defined as at least a 20% increase in the SOD of target lesions. SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the Baseline sum diameters.

Analysis population: The Phase 2 Full Analysis Population includes all participants enrolled in the study who received at least 1 dose of study drug. The data is reported per cancer type in this outcome measure. Overall number analyzed are the participants who had best overall response of stable disease or better.

Groups in this outcome

Phase 2: Epacadostat 100 mg + Nivolumab 240 in Colorectal Cancer

Participants with Colorectal Cancer received epacadostat 100 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.

Phase 2: Epacadostat 300 mg + Nivolumab 240 mg in DLBCL

Participants with DLBCL received epacadostat 300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.

Phase 2: Epacadostat 100/300 mg + Nivolumab 240 mg in Melanoma(I/O Naive)

Participants with Melanoma(I/O Naive) received epacadostat 100 mg or 300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.

Phase 2 Epacadostat 100mg + Nivolumab 480 mg in Melanoma (I/O Relapsed)

Participants with Melanoma (I/O Relapsed) received epacadostat 100 mg BID in combination with nivolumab 480 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.

Phase 2 Epacadostat 100mg + Nivolumab 480 mg in Melanoma (I/O Refractory)

Participants with Melanoma (I/O Refractory) received epacadostat 100 mg BID in combination with nivolumab 480 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.

Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in NSCLC

Participants with NSCLC received epacadostat 100 mg or 300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.

Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in Ovarian Cancer

Participants with Ovarian Cancer received epacadostat 100 mg or 300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.

Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in SCCHN

Participants with SCCHN received epacadostat 100/300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.

Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in Glioblastoma

Participants with Glioblastoma received epacadostat 100/300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.

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

Analysis denominator · Participants

GroupSource count
Phase 2: Epacadostat 100 mg + Nivolumab 240 in Colorectal Cancer4
Phase 2: Epacadostat 300 mg + Nivolumab 240 mg in DLBCL4
Phase 2: Epacadostat 100/300 mg + Nivolumab 240 mg in Melanoma(I/O Naive)39
Phase 2 Epacadostat 100mg + Nivolumab 480 mg in Melanoma (I/O Relapsed)2
Phase 2 Epacadostat 100mg + Nivolumab 480 mg in Melanoma (I/O Refractory)3
Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in NSCLC19
Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in Ovarian Cancer9
Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in SCCHN17
Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in Glioblastoma8

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Phase 2: Epacadostat 100 mg + Nivolumab 240 in Colorectal Cancer3.72Not reported2.86NAUpper limit of 95% CI was not estimable due to low number of participants with events.
Phase 2: Epacadostat 300 mg + Nivolumab 240 mg in DLBCL4.57Not reported3.5210.26Not reported
Phase 2: Epacadostat 100/300 mg + Nivolumab 240 mg in Melanoma(I/O Naive)NANot reportedNANAMedian, lower and upper limit of 95% CI was not estimable due to low number of participants with events.
Phase 2 Epacadostat 100mg + Nivolumab 480 mg in Melanoma (I/O Relapsed)NANot reportedNANAMedian, lower and upper limit of 95% CI was not estimable due to low number of participants with events.
Phase 2 Epacadostat 100mg + Nivolumab 480 mg in Melanoma (I/O Refractory)NANot reported3.19NAMedian, and upper limit of 95% CI was not estimable due to low number of participants with events.
Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in NSCLCNANot reported9.11NAMedian, and upper limit of 95% CI was not estimable due to low number of participants with events.
Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in Ovarian Cancer5.86Not reported3.527.47Not reported
Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in SCCHN10.89Not reported4.84NAUpper limit of 95% CI was not estimable due to low number of participants with events.
Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in Glioblastoma3.72Not reported3.495.59Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        Upper limit of 95% CI was not estimable due to low number of participants with events.
        group Id
        OG000
        lower Limit
        2.86
        upper Limit
        NA
        value
        3.72
      2. group Id
        OG001
        lower Limit
        3.52
        upper Limit
        10.26
        value
        4.57
      3. comment
        Median, lower and upper limit of 95% CI was not estimable due to low number of participants with events.
        group Id
        OG002
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
      4. comment
        Median, lower and upper limit of 95% CI was not estimable due to low number of participants with events.
        group Id
        OG003
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
      5. comment
        Median, and upper limit of 95% CI was not estimable due to low number of participants with events.
        group Id
        OG004
        lower Limit
        3.19
        upper Limit
        NA
        value
        NA
      6. comment
        Median, and upper limit of 95% CI was not estimable due to low number of participants with events.
        group Id
        OG005
        lower Limit
        9.11
        upper Limit
        NA
        value
        NA
      7. group Id
        OG006
        lower Limit
        3.52
        upper Limit
        7.47
        value
        5.86
      8. comment
        Upper limit of 95% CI was not estimable due to low number of participants with events.
        group Id
        OG007
        lower Limit
        4.84
        upper Limit
        NA
        value
        10.89
      9. group Id
        OG008
        lower Limit
        3.49
        upper Limit
        5.59
        value
        3.72
denoms
  1. counts
    1. group Id
      OG000
      value
      4
    2. group Id
      OG001
      value
      4
    3. group Id
      OG002
      value
      39
    4. group Id
      OG003
      value
      2
    5. group Id
      OG004
      value
      3
    6. group Id
      OG005
      value
      19
    7. group Id
      OG006
      value
      9
    8. group Id
      OG007
      value
      17
    9. group Id
      OG008
      value
      8
    units
    Participants
description
Duration of disease control is the time from the first dose to the first objective response of PD, or death, whichever occurs first, for participants who reported a best overall response of SD or better. PD was defined as at least a 20% increase in the SOD of target lesions. SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the Baseline sum diameters.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants with Colorectal Cancer received epacadostat 100 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.
    id
    OG000
    title
    Phase 2: Epacadostat 100 mg + Nivolumab 240 in Colorectal Cancer
  2. description
    Participants with DLBCL received epacadostat 300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.
    id
    OG001
    title
    Phase 2: Epacadostat 300 mg + Nivolumab 240 mg in DLBCL
  3. description
    Participants with Melanoma(I/O Naive) received epacadostat 100 mg or 300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.
    id
    OG002
    title
    Phase 2: Epacadostat 100/300 mg + Nivolumab 240 mg in Melanoma(I/O Naive)
  4. description
    Participants with Melanoma (I/O Relapsed) received epacadostat 100 mg BID in combination with nivolumab 480 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.
    id
    OG003
    title
    Phase 2 Epacadostat 100mg + Nivolumab 480 mg in Melanoma (I/O Relapsed)
  5. description
    Participants with Melanoma (I/O Refractory) received epacadostat 100 mg BID in combination with nivolumab 480 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.
    id
    OG004
    title
    Phase 2 Epacadostat 100mg + Nivolumab 480 mg in Melanoma (I/O Refractory)
  6. description
    Participants with NSCLC received epacadostat 100 mg or 300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.
    id
    OG005
    title
    Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in NSCLC
  7. description
    Participants with Ovarian Cancer received epacadostat 100 mg or 300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.
    id
    OG006
    title
    Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in Ovarian Cancer
  8. description
    Participants with SCCHN received epacadostat 100/300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.
    id
    OG007
    title
    Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in SCCHN
  9. description
    Participants with Glioblastoma received epacadostat 100/300 mg BID in combination with nivolumab 240 mg IV infusion Q2W on Days 1, 15, 29, and 43 of each 8-week cycle.
    id
    OG008
    title
    Phase 2 Epacadostat 100/300 mg + Nivolumab 240 mg in Glioblastoma
param Type
MEDIAN
population Description
The Phase 2 Full Analysis Population includes all participants enrolled in the study who received at least 1 dose of study drug. The data is reported per cancer type in this outcome measure. Overall number analyzed are the participants who had best overall response of stable disease or better.
reporting Status
POSTED
time Frame
From first dose up end of the study (up to approximately 6 years)
title
Phase 2: Duration of Disease Control, Defined as CR, PR, and Stable Disease (SD)
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice