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NCT00304031 · OUTCOME

Mean Neurocognitive Function (NCF) Composite Score Over Time

Radiation Therapy (RT) and Temozolomide (TMZ) in Treating Patients With Newly Diagnosed Glioblastoma or Gliosarcoma · Source last updated 2020-06-09

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

Measure
MEAN
Unit
score on a scale
Interval / dispersion
95% Confidence Interval
Time frame
Baseline, 10, 22, and 46 weeks

What was measured

The NCF Composite score is the arithmetic mean of the HVLT-R (Free Recall, Delayed Recall, Delayed Recognition), TMTA, TMTB, and COWA scores, all of which are standardized, adjusting for age, education, and gender as necessary, such that mean is 0 and standard deviation is 1. A participant must have at least 5 of the 6 scores. A higher composite score indicates better neurocognitive function.

Analysis population: Questionnaires were not completed by all QOL population participants. Therefore, the number of participants reported below are the number with data at baseline and the given time point on each arm.

Groups in this outcome

Conventional Adjuvant TMZ

Concurrent radiation therapy with concurrent temozolomide (75 mg/m2) up to 49 doses. Starting four weeks after completion of RT, 100mg/m2 adjuvant temozolomide days 1 to 5 of 28 day cycle for 6 cycles, up to 12 cycles.

Dose-dense Adjuvant TMZ

Concurrent radiation therapy (RT) with concurrent temozolomide (75 mg/m2) up to 49 doses. Starting four weeks after completion of RT, 75mg/m2 adjuvant temozolomide days 1-21 of 28 day cycle for 6 cycles, up to 12 cycles.

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

Analysis denominator · Participants

GroupSource count
Conventional Adjuvant TMZ96
Dose-dense Adjuvant TMZ95

Reported measurements

Baseline

Analysis denominator · Participants

GroupSource count
Conventional Adjuvant TMZ80
Dose-dense Adjuvant TMZ85
Values in score on a scale · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Conventional Adjuvant TMZ-1.2Not reported-1.6-0.9Not reported
Dose-dense Adjuvant TMZ-1.5Not reported-1.8-1.1Not reported
Week 10 (Cycle 1)

Analysis denominator · Participants

GroupSource count
Conventional Adjuvant TMZ67
Dose-dense Adjuvant TMZ63
Values in score on a scale · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Conventional Adjuvant TMZ-1.3Not reported-1.7-1.0Not reported
Dose-dense Adjuvant TMZ-1.45Not reported-1.9-1.0Not reported
Week 22 (Cycle 4)

Analysis denominator · Participants

GroupSource count
Conventional Adjuvant TMZ39
Dose-dense Adjuvant TMZ35
Values in score on a scale · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Conventional Adjuvant TMZ-1.1Not reported-1.6-0.6Not reported
Dose-dense Adjuvant TMZ-1.3Not reported-2.0-0.6Not reported
Week 46 (Cycle 10)

Analysis denominator · Participants

GroupSource count
Conventional Adjuvant TMZ17
Dose-dense Adjuvant TMZ20
Values in score on a scale · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Conventional Adjuvant TMZ-1.0Not reported-2.10.2Not reported
Dose-dense Adjuvant TMZ-1.2Not reported-2.0-0.3Not reported

Source statistical analyses

Group order, estimate direction, methods and comments are retained. No treatment ranking is inferred.

  1. group Description
    A mixed effects model was run with NCF Composite Score (baseline, 10, 22, 46 weeks) as the outcome of interest. Treatment arm, recursive partitioning analysis (RPA) class, MGMT status, and time were included in the model. Treatment arm is reported here.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.2357
    statistical Comment
    Each explanatory variable is reported separately. (Time and intercept effects are not shown.)
    statistical Method
    Mixed Models Analysis
  2. group Description
    A mixed effects model was run with NCF Composite Score (baseline, 10, 22, 46 weeks) as the outcome of interest. Treatment arm, recursive partitioning analysis (RPA) class, MGMT status, and time were included in the model. RPA is reported here.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0147
    statistical Comment
    Each explanatory variable is reported separately. (Time and intercept effects are not shown.)
    statistical Method
    Mixed Models Analysis
  3. group Description
    A mixed effects model was run with NCF Composite Score (baseline, 10, 22, 46 weeks) as the outcome of interest. Treatment arm, recursive partitioning analysis (RPA) class, MGMT status, and time were included in the model. MGMT Status is reported here.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.457
    statistical Comment
    Each explanatory variable is reported separately. (Time and intercept effects are not shown.)
    statistical Method
    Mixed Models Analysis
Complete source fields
analyses
  1. group Description
    A mixed effects model was run with NCF Composite Score (baseline, 10, 22, 46 weeks) as the outcome of interest. Treatment arm, recursive partitioning analysis (RPA) class, MGMT status, and time were included in the model. Treatment arm is reported here.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.2357
    statistical Comment
    Each explanatory variable is reported separately. (Time and intercept effects are not shown.)
    statistical Method
    Mixed Models Analysis
  2. group Description
    A mixed effects model was run with NCF Composite Score (baseline, 10, 22, 46 weeks) as the outcome of interest. Treatment arm, recursive partitioning analysis (RPA) class, MGMT status, and time were included in the model. RPA is reported here.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0147
    statistical Comment
    Each explanatory variable is reported separately. (Time and intercept effects are not shown.)
    statistical Method
    Mixed Models Analysis
  3. group Description
    A mixed effects model was run with NCF Composite Score (baseline, 10, 22, 46 weeks) as the outcome of interest. Treatment arm, recursive partitioning analysis (RPA) class, MGMT status, and time were included in the model. MGMT Status is reported here.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.457
    statistical Comment
    Each explanatory variable is reported separately. (Time and intercept effects are not shown.)
    statistical Method
    Mixed Models Analysis
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        -1.6
        upper Limit
        -0.9
        value
        -1.2
      2. group Id
        OG001
        lower Limit
        -1.8
        upper Limit
        -1.1
        value
        -1.5
    denoms
    1. counts
      1. group Id
        OG000
        value
        80
      2. group Id
        OG001
        value
        85
      units
      Participants
    title
    Baseline
  2. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        -1.7
        upper Limit
        -1.0
        value
        -1.3
      2. group Id
        OG001
        lower Limit
        -1.9
        upper Limit
        -1.0
        value
        -1.45
    denoms
    1. counts
      1. group Id
        OG000
        value
        67
      2. group Id
        OG001
        value
        63
      units
      Participants
    title
    Week 10 (Cycle 1)
  3. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        -1.6
        upper Limit
        -0.6
        value
        -1.1
      2. group Id
        OG001
        lower Limit
        -2.0
        upper Limit
        -0.6
        value
        -1.3
    denoms
    1. counts
      1. group Id
        OG000
        value
        39
      2. group Id
        OG001
        value
        35
      units
      Participants
    title
    Week 22 (Cycle 4)
  4. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        -2.1
        upper Limit
        0.2
        value
        -1.0
      2. group Id
        OG001
        lower Limit
        -2.0
        upper Limit
        -0.3
        value
        -1.2
    denoms
    1. counts
      1. group Id
        OG000
        value
        17
      2. group Id
        OG001
        value
        20
      units
      Participants
    title
    Week 46 (Cycle 10)
denoms
  1. counts
    1. group Id
      OG000
      value
      96
    2. group Id
      OG001
      value
      95
    units
    Participants
description
The NCF Composite score is the arithmetic mean of the HVLT-R (Free Recall, Delayed Recall, Delayed Recognition), TMTA, TMTB, and COWA scores, all of which are standardized, adjusting for age, education, and gender as necessary, such that mean is 0 and standard deviation is 1. A participant must have at least 5 of the 6 scores. A higher composite score indicates better neurocognitive function.
dispersion Type
95% Confidence Interval
groups
  1. description
    Concurrent radiation therapy with concurrent temozolomide (75 mg/m2) up to 49 doses. Starting four weeks after completion of RT, 100mg/m2 adjuvant temozolomide days 1 to 5 of 28 day cycle for 6 cycles, up to 12 cycles.
    id
    OG000
    title
    Conventional Adjuvant TMZ
  2. description
    Concurrent radiation therapy (RT) with concurrent temozolomide (75 mg/m2) up to 49 doses. Starting four weeks after completion of RT, 75mg/m2 adjuvant temozolomide days 1-21 of 28 day cycle for 6 cycles, up to 12 cycles.
    id
    OG001
    title
    Dose-dense Adjuvant TMZ
param Type
MEAN
population Description
Questionnaires were not completed by all QOL population participants. Therefore, the number of participants reported below are the number with data at baseline and the given time point on each arm.
reporting Status
POSTED
time Frame
Baseline, 10, 22, and 46 weeks
title
Mean Neurocognitive Function (NCF) Composite Score Over Time
type
SECONDARY
unit Of Measure
score on a scale

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Preserved source evidence · Not medical advice