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NCT03962543 · OUTCOME

Confirmed Objective Response Rate at the End of the Treatment Phase.

MEK Inhibitor Mirdametinib (PD-0325901) in Patients With Neurofibromatosis Type 1 Associated Plexiform Neurofibromas · Source last updated 2026-07-10

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

Measure
NUMBER
Unit
percentage of patients
Interval / dispersion
95% Confidence Interval
Time frame
Up to 24 months

What was measured

Response will be determined by a blinded centralized review of volumetric MRI. The confirmed objective response rate (complete or partial response) by the end of Treatment Phase (i.e., Cycle 24) is defined as the proportion of participants who have a confirmed ≥ 20% reduction in target tumor volume as compared to baseline as assessed by a BICR, and the response needs to be confirmed by BICR in a consecutive tumor assessment within 2 - 6 months. Partial response is defined as a ≥ 20% reduction in target tumor volume from baseline. Complete response is defined as the complete resolution of the target tumor.

Analysis population: The Full Analysis Set is defined as patients who received at least one dose of Mirdametinib.

Groups in this outcome

Treatment Phase - Pediatric Cohort Mirdametinib (PD-0325901)

Patients aged 2 to 17 years old at the time of informed consent. Mirdametinib (PD-0325901) capsule or dispersible tablet 2 mg/m\^2 (maximum dose of 4 mg) by mouth twice daily

Treatment Phase - Adult Cohort Mirdametinib (PD-0325901)

Patients aged 18 and above at the time of informed consent. Mirdametinib (PD-0325901) capsule or dispersible tablet 2 mg/m\^2 (maximum dose of 4 mg) by mouth twice daily

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 Phase - Pediatric Cohort Mirdametinib (PD-0325901)56
Treatment Phase - Adult Cohort Mirdametinib (PD-0325901)58

Reported measurements

Source class 1
Values in percentage of patients · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Treatment Phase - Pediatric Cohort Mirdametinib (PD-0325901)51.8Not reported38.065.3Not reported
Treatment Phase - Adult Cohort Mirdametinib (PD-0325901)41.4Not reported28.655.1Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        38.0
        upper Limit
        65.3
        value
        51.8
      2. group Id
        OG001
        lower Limit
        28.6
        upper Limit
        55.1
        value
        41.4
denoms
  1. counts
    1. group Id
      OG000
      value
      56
    2. group Id
      OG001
      value
      58
    units
    Participants
description
Response will be determined by a blinded centralized review of volumetric MRI. The confirmed objective response rate (complete or partial response) by the end of Treatment Phase (i.e., Cycle 24) is defined as the proportion of participants who have a confirmed ≥ 20% reduction in target tumor volume as compared to baseline as assessed by a BICR, and the response needs to be confirmed by BICR in a consecutive tumor assessment within 2 - 6 months. Partial response is defined as a ≥ 20% reduction in target tumor volume from baseline. Complete response is defined as the complete resolution of the target tumor.
dispersion Type
95% Confidence Interval
groups
  1. description
    Patients aged 2 to 17 years old at the time of informed consent. Mirdametinib (PD-0325901) capsule or dispersible tablet 2 mg/m\^2 (maximum dose of 4 mg) by mouth twice daily
    id
    OG000
    title
    Treatment Phase - Pediatric Cohort Mirdametinib (PD-0325901)
  2. description
    Patients aged 18 and above at the time of informed consent. Mirdametinib (PD-0325901) capsule or dispersible tablet 2 mg/m\^2 (maximum dose of 4 mg) by mouth twice daily
    id
    OG001
    title
    Treatment Phase - Adult Cohort Mirdametinib (PD-0325901)
param Type
NUMBER
population Description
The Full Analysis Set is defined as patients who received at least one dose of Mirdametinib.
reporting Status
POSTED
time Frame
Up to 24 months
title
Confirmed Objective Response Rate at the End of the Treatment Phase.
type
PRIMARY
unit Of Measure
percentage of patients

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

Preserved source evidence · Not medical advice