Skip to content
← Full study record

NCT00085735 · OUTCOME

Incidence of Grade 3+ Hearing Loss at 1-year Post Treatment as Assessed by CTCAE v4

Comparison of Radiation Therapy Regimens in Combination With Chemotherapy in Treating Young Patients With Newly Diagnosed Standard-Risk Medulloblastoma · Source last updated 2026-06-09

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

Measure
NUMBER
Unit
Percentage of pts with g3+ hearing loss
Interval / dispersion
Not reported
Time frame
Up to 3 years

What was measured

Proportions of patients with grade 3+ hearing impairment as assessed by CTCAE v4 at 1-year post treatment were calculated.

Analysis population: Eligible \& evaluable pts were included. Pts with anaplastic histology or disseminated/excess residual disease were not evaluable(NE). 26/23 IFRT/PFRT pts were NE, leaving 227 vs 237 eligible/evaluable pts. However some pts (28/22) weren't followed for at least 1-yr post-off tx (e.g., withdrew consent for FU or died), leaving 199 IFRT/215 PFRT pts.

Groups in this outcome

Involved Field Radiation (IFRT)

Includes eligible patients 3-21 years of age without anaplastic histology or evidence of disseminated or ERD based on central review and randomized to one of the IFRT arms (Treatment Arms I, III, V).

Posterior Fossa Radiation (PFRT)

Includes eligible patients 3-21 years of age without anaplastic histology or evidence of disseminated or ERD based on central review and randomized to one of the PFRT arms (Treatment Arms II, IV, VI).

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

Analysis denominator · Participants

GroupSource count
Involved Field Radiation (IFRT)199
Posterior Fossa Radiation (PFRT)215

Reported measurements

Source class 1
Values in Percentage of pts with g3+ hearing loss · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Involved Field Radiation (IFRT)8Not reportedNot reportedNot reportedNot reported
Posterior Fossa Radiation (PFRT)8Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        8
      2. group Id
        OG001
        value
        8
denoms
  1. counts
    1. group Id
      OG000
      value
      199
    2. group Id
      OG001
      value
      215
    units
    Participants
description
Proportions of patients with grade 3+ hearing impairment as assessed by CTCAE v4 at 1-year post treatment were calculated.
groups
  1. description
    Includes eligible patients 3-21 years of age without anaplastic histology or evidence of disseminated or ERD based on central review and randomized to one of the IFRT arms (Treatment Arms I, III, V).
    id
    OG000
    title
    Involved Field Radiation (IFRT)
  2. description
    Includes eligible patients 3-21 years of age without anaplastic histology or evidence of disseminated or ERD based on central review and randomized to one of the PFRT arms (Treatment Arms II, IV, VI).
    id
    OG001
    title
    Posterior Fossa Radiation (PFRT)
param Type
NUMBER
population Description
Eligible \& evaluable pts were included. Pts with anaplastic histology or disseminated/excess residual disease were not evaluable(NE). 26/23 IFRT/PFRT pts were NE, leaving 227 vs 237 eligible/evaluable pts. However some pts (28/22) weren't followed for at least 1-yr post-off tx (e.g., withdrew consent for FU or died), leaving 199 IFRT/215 PFRT pts.
reporting Status
POSTED
time Frame
Up to 3 years
title
Incidence of Grade 3+ Hearing Loss at 1-year Post Treatment as Assessed by CTCAE v4
type
SECONDARY
unit Of Measure
Percentage of pts with g3+ hearing loss

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

Preserved source evidence · Not medical advice