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NCT02601950 · OUTCOME

Cohorts 2 and 8: Objective Response Rate (ORR)

A Study of Tazemetostat in Adult Participants With Soft Tissue Sarcoma · Source last updated 2025-06-22

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
Tumor assessment performed at screening and every 8 weeks beginning at Cycle 3 Day 1, until disease progression or the start of subsequent anti-cancer therapy, whichever occurred first, up to 5.75 years (cycle duration: 28 days)

What was measured

ORR was defined as percentage of participants who achieved a confirmed CR or PR based on investigator assessment from start of treatment until PD or start of subsequent anti-cancer therapy or cancer-related surgery, whichever was earlier, as per RANO criteria for primary brain tumors or RECIST v 1.1 criteria for all other solid tumors. CR was defined as disappearance of all target and non-target lesions. Any pathological lymph nodes must be \<10 mm in the short axis. PR was defined as at least 30% decrease in sum of diameters of target lesions, taking as a reference, baseline sum of diameters. PD was defined as at least a 20% increase in the sum of diameters of target lesions, taking as a reference, smallest sum of diameters recorded since the treatment started. In addition, the sum must have an absolute increase from nadir of 5 mm.

Analysis population: ITT population included all participants who received at least 1 dose of tazemetostat.

Groups in this outcome

Synovial Sarcoma: Cohort 2

Participants with relapsed or refractory synovial sarcoma with SS18-SSX rearrangement received tazemetostat 800 mg BID orally in continuous 28-day cycles until disease progression, development of an unacceptable toxicity, withdrawal of consent, or termination of the study.

ES 1600 mg: Cohort 8

Participants with ES received tazemetostat 1600 mg QD orally in continuous 28-day cycles until disease progression, development of an unacceptable toxicity, withdrawal of consent, or termination of the study.

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

Analysis denominator · Participants

GroupSource count
Synovial Sarcoma: Cohort 233
ES 1600 mg: Cohort 87

Reported measurements

Source class 1
Values in Percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Synovial Sarcoma: Cohort 20Not reported0.010.6Not reported
ES 1600 mg: Cohort 814.3Not reported0.457.9Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.0
        upper Limit
        10.6
        value
        0
      2. group Id
        OG001
        lower Limit
        0.4
        upper Limit
        57.9
        value
        14.3
denoms
  1. counts
    1. group Id
      OG000
      value
      33
    2. group Id
      OG001
      value
      7
    units
    Participants
description
ORR was defined as percentage of participants who achieved a confirmed CR or PR based on investigator assessment from start of treatment until PD or start of subsequent anti-cancer therapy or cancer-related surgery, whichever was earlier, as per RANO criteria for primary brain tumors or RECIST v 1.1 criteria for all other solid tumors. CR was defined as disappearance of all target and non-target lesions. Any pathological lymph nodes must be \<10 mm in the short axis. PR was defined as at least 30% decrease in sum of diameters of target lesions, taking as a reference, baseline sum of diameters. PD was defined as at least a 20% increase in the sum of diameters of target lesions, taking as a reference, smallest sum of diameters recorded since the treatment started. In addition, the sum must have an absolute increase from nadir of 5 mm.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants with relapsed or refractory synovial sarcoma with SS18-SSX rearrangement received tazemetostat 800 mg BID orally in continuous 28-day cycles until disease progression, development of an unacceptable toxicity, withdrawal of consent, or termination of the study.
    id
    OG000
    title
    Synovial Sarcoma: Cohort 2
  2. description
    Participants with ES received tazemetostat 1600 mg QD orally in continuous 28-day cycles until disease progression, development of an unacceptable toxicity, withdrawal of consent, or termination of the study.
    id
    OG001
    title
    ES 1600 mg: Cohort 8
param Type
NUMBER
population Description
ITT population included all participants who received at least 1 dose of tazemetostat.
reporting Status
POSTED
time Frame
Tumor assessment performed at screening and every 8 weeks beginning at Cycle 3 Day 1, until disease progression or the start of subsequent anti-cancer therapy, whichever occurred first, up to 5.75 years (cycle duration: 28 days)
title
Cohorts 2 and 8: Objective Response Rate (ORR)
type
SECONDARY
unit Of Measure
Percentage of participants

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice