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NCT02371369 · OUTCOME

Percentage of Participants With Symptomatic, Locally Advanced Tenosynovial Giant Cell Tumor (TGCT) Achieving Complete or Partial Response to Pexidartinib Compared With That of Placebo Per Response Evaluation Criteria in Solid Tumors Version 1.1 by Week 49

Phase 3 Study of Pexidartinib for Pigmented Villonodular Synovitis (PVNS) or Giant Cell Tumor of the Tendon Sheath (GCT-TS) · Source last updated 2022-05-11

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
Not reported
Time frame
By Week 49

What was measured

Complete (CR) and partial responses (PR) were assessed based on centrally-read magnetic resonance imaging (MRI) scans and Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1). A CR was defined as disappearance of all tumors and a PR was defined as at least a 30% decrease in the sum of diameters of target tumors using the baseline sum diameters as the reference.

Analysis population: Best overall response was assessed in the ITT population.

Groups in this outcome

Pexidartinib Part 1 and Part 2

Participants received treatment of Pexidartinib,1000 mg (5 capsules per day) for 2 weeks, then 800 mg (4 capsules per day) for 22 weeks and also received Pexidartinib in Part 2 at their prescribed dose. Pexidartinib: Each capsule contains 200 mg of Pexidartinib for oral administration.

Placebo Part 1, Pexidartinib Part 2

Participants received treatment of matching placebo (5 capsules per day) for 2 weeks, then matching placebo (4 capsules per day) for 22 weeks in Part 1 and also received Pexidartinib in Part 2 at their prescribed dose. Placebo: Placebo capsule matching Pexidartinib capsule for oral administration Pexidartinib: Each capsule contains 200 mg of Pexidartinib for oral administration.

All Pexidartinib Treated

All participants who received Pexidartinib in Part 1 and Part 2 as well as those who only received Pexidartinib in Part 2.

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

Analysis denominator · Participants

GroupSource count
Pexidartinib Part 1 and Part 261
Placebo Part 1, Pexidartinib Part 230
All Pexidartinib Treated91

Reported measurements

Complete Response (CR)
Values in Percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Pexidartinib Part 1 and Part 224.6Not reportedNot reportedNot reportedNot reported
Placebo Part 1, Pexidartinib Part 223.3Not reportedNot reportedNot reportedNot reported
All Pexidartinib Treated24.2Not reportedNot reportedNot reportedNot reported
Partial Response (PR)
Values in Percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Pexidartinib Part 1 and Part 229.5Not reportedNot reportedNot reportedNot reported
Placebo Part 1, Pexidartinib Part 230.0Not reportedNot reportedNot reportedNot reported
All Pexidartinib Treated29.7Not reportedNot reportedNot reportedNot reported
Response (CR or PR)
Values in Percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Pexidartinib Part 1 and Part 254.1Not reportedNot reportedNot reportedNot reported
Placebo Part 1, Pexidartinib Part 253.3Not reportedNot reportedNot reportedNot reported
All Pexidartinib Treated53.8Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        24.6
      2. group Id
        OG001
        value
        23.3
      3. group Id
        OG002
        value
        24.2
    title
    Complete Response (CR)
  2. categories
    1. measurements
      1. group Id
        OG000
        value
        29.5
      2. group Id
        OG001
        value
        30.0
      3. group Id
        OG002
        value
        29.7
    title
    Partial Response (PR)
  3. categories
    1. measurements
      1. group Id
        OG000
        value
        54.1
      2. group Id
        OG001
        value
        53.3
      3. group Id
        OG002
        value
        53.8
    title
    Response (CR or PR)
denoms
  1. counts
    1. group Id
      OG000
      value
      61
    2. group Id
      OG001
      value
      30
    3. group Id
      OG002
      value
      91
    units
    Participants
description
Complete (CR) and partial responses (PR) were assessed based on centrally-read magnetic resonance imaging (MRI) scans and Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1). A CR was defined as disappearance of all tumors and a PR was defined as at least a 30% decrease in the sum of diameters of target tumors using the baseline sum diameters as the reference.
groups
  1. description
    Participants received treatment of Pexidartinib,1000 mg (5 capsules per day) for 2 weeks, then 800 mg (4 capsules per day) for 22 weeks and also received Pexidartinib in Part 2 at their prescribed dose. Pexidartinib: Each capsule contains 200 mg of Pexidartinib for oral administration.
    id
    OG000
    title
    Pexidartinib Part 1 and Part 2
  2. description
    Participants received treatment of matching placebo (5 capsules per day) for 2 weeks, then matching placebo (4 capsules per day) for 22 weeks in Part 1 and also received Pexidartinib in Part 2 at their prescribed dose. Placebo: Placebo capsule matching Pexidartinib capsule for oral administration Pexidartinib: Each capsule contains 200 mg of Pexidartinib for oral administration.
    id
    OG001
    title
    Placebo Part 1, Pexidartinib Part 2
  3. description
    All participants who received Pexidartinib in Part 1 and Part 2 as well as those who only received Pexidartinib in Part 2.
    id
    OG002
    title
    All Pexidartinib Treated
param Type
NUMBER
population Description
Best overall response was assessed in the ITT population.
reporting Status
POSTED
time Frame
By Week 49
title
Percentage of Participants With Symptomatic, Locally Advanced Tenosynovial Giant Cell Tumor (TGCT) Achieving Complete or Partial Response to Pexidartinib Compared With That of Placebo Per Response Evaluation Criteria in Solid Tumors Version 1.1 by Week 49
type
OTHER_PRE_SPECIFIED
unit Of Measure
Percentage of participants

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