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NCT03962543 · OUTCOME

Change From Baseline in Physical Function Status as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) at Cycle 13: Pediatric v2.0 Upper Extremities 8a.

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
MEAN
Unit
T-score
Interval / dispersion
Standard Deviation
Time frame
Baseline and Cycle 13 (1 cycle = 28 days), up to 12 months

What was measured

PROMIS measures capability of physical functioning, with questions related to daily activities. Participants 8-17 years complete a self-report of physical function in the upper extremity or lower extremity (mobility), depending on the location of the PN. The recall period is 7 days. All PROMIS items are answered on a Likert scale with responses ranging from 1 to 5, with higher scores representing higher physical functioning in the upper extremities. The total raw score will be calculated as the sum of the individual item responses at a given visit (total raw scale range 8-40). The total raw scores for the measure will be converted to T-scores using the applicable score conversion table in the user manual and scoring instructions (PROMIS, 2023) ranging from 10 to 57 for self-report, and 13 to 55 for parent proxy with higher scores representing higher reported physical functioning and better outcomes. A T-score of 50 indicates the population mean with a standard deviation of 10.

Analysis population: The Full Analysis Set eligible for the instrument at baseline.

Groups in this outcome

Treatment Phase - Pediatric Cohort Mirdametinib (PD-0325901) - Self-Report

Patients self-reported results aged 8 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 - Pediatric Cohort Mirdametinib (PD-0325901) - Parent Proxy

Patients parent proxy results aged 5 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

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) - Self-Report3
Treatment Phase - Pediatric Cohort Mirdametinib (PD-0325901) - Parent Proxy4

Reported measurements

Source class 1
Values in T-score · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Treatment Phase - Pediatric Cohort Mirdametinib (PD-0325901) - Self-Report11.53.54Not reportedNot reportedNot reported
Treatment Phase - Pediatric Cohort Mirdametinib (PD-0325901) - Parent Proxy9.53.54Not reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        spread
        3.54
        value
        11.5
      2. group Id
        OG001
        spread
        3.54
        value
        9.5
denoms
  1. counts
    1. group Id
      OG000
      value
      3
    2. group Id
      OG001
      value
      4
    units
    Participants
description
PROMIS measures capability of physical functioning, with questions related to daily activities. Participants 8-17 years complete a self-report of physical function in the upper extremity or lower extremity (mobility), depending on the location of the PN. The recall period is 7 days. All PROMIS items are answered on a Likert scale with responses ranging from 1 to 5, with higher scores representing higher physical functioning in the upper extremities. The total raw score will be calculated as the sum of the individual item responses at a given visit (total raw scale range 8-40). The total raw scores for the measure will be converted to T-scores using the applicable score conversion table in the user manual and scoring instructions (PROMIS, 2023) ranging from 10 to 57 for self-report, and 13 to 55 for parent proxy with higher scores representing higher reported physical functioning and better outcomes. A T-score of 50 indicates the population mean with a standard deviation of 10.
dispersion Type
Standard Deviation
groups
  1. description
    Patients self-reported results aged 8 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) - Self-Report
  2. description
    Patients parent proxy results aged 5 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
    OG001
    title
    Treatment Phase - Pediatric Cohort Mirdametinib (PD-0325901) - Parent Proxy
param Type
MEAN
population Description
The Full Analysis Set eligible for the instrument at baseline.
reporting Status
POSTED
time Frame
Baseline and Cycle 13 (1 cycle = 28 days), up to 12 months
title
Change From Baseline in Physical Function Status as Measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) at Cycle 13: Pediatric v2.0 Upper Extremities 8a.
type
OTHER_PRE_SPECIFIED
unit Of Measure
T-score

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Preserved source evidence · Not medical advice