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NCT00027846 · OUTCOME

Event-free Survival

Observation or Radiation Therapy and/or Chemotherapy and Second Surgery in Treating Children Who Have Undergone Surgery for Ependymoma · Source last updated 2019-08-07

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

Measure
NUMBER
Unit
Probability of EFS at 5 years
Interval / dispersion
95% Confidence Interval
Time frame
Up to 5 years after completion of study treatment

What was measured

Event-free survival is calculated from the date of study enrollment to the date of disease progression, disease relapse, occurrence of second neoplasm, or death from any cause. The product-limit (Kaplan-Meier) estimate is for estimation of Event -free survival (EFS) probability at 5 years.

Analysis population: The product-limit (Kaplan-Meier) estimate is for estimation of event-free survival probability at 5 years. All eligible patients in the study were included.

Groups in this outcome

GTR1 Differentiated Histology Supratentorial (Group 1)

Patients undergo observation.

Radiation (Group 2)

Supratentorial Anaplastic Ependymoma (GTR1, GTR2, NTR) and Anaplastic or Differentiated Infratentorial Ependymoma (GTR1, GTR2, NTR) and Supratentorial Differentiated Ependymoma(GTR2, NTR). Patients undergo conformal radiation therapy to the brain once daily 5 days a week for 6-6½ weeks. radiation therapy: Given once daily 5 days a week for 6-6½ weeks

Sub-Total Resection Any Histology or Location (STR) (Group 3)

Patients receive initial course of chemotherapy comprising vincristine sulfate IV on days 1 and 8, carboplatin IV over 1 hour on day 1, and cyclophosphamide IV over 1 hour on days 1 and 2. Patients also receive filgrastim (G-CSF) subcutaneously or IV beginning on day 3 and continuing until blood counts recover. Patients then receive a second course of chemotherapy comprising vincristine sulfate IV on days 1 and 8, carboplatin IV over 1 hour on day 1, and oral etoposide on days 1-21. After completion of chemotherapy, patients are evaluated for second therapeutic conventional surgery. Patients who have unresectable disease undergo conformal radiation therapy. Patients who have resectable disease undergo second surgery followed by conformal radiotherapy. filgrastim: Given IV or SC (5mcg/kg/day) start on Day 3 and continue until ANC \>1500/μl given subcutaneously or intravenously. carboplatin: Given IV (375 mg/m2/day) Day 1 given as an IV infusion over one hour. For patient

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

Analysis denominator · Participants

GroupSource count
GTR1 Differentiated Histology Supratentorial (Group 1)11
Radiation (Group 2)281
Sub-Total Resection Any Histology or Location (STR) (Group 3)64

Reported measurements

Source class 1
Values in Probability of EFS at 5 years · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
GTR1 Differentiated Histology Supratentorial (Group 1)0.614Not reported0.330.90Not reported
Radiation (Group 2)0.685Not reported0.630.74Not reported
Sub-Total Resection Any Histology or Location (STR) (Group 3)0.372Not reported0.250.50Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.33
        upper Limit
        0.90
        value
        0.614
      2. group Id
        OG001
        lower Limit
        0.63
        upper Limit
        0.74
        value
        0.685
      3. group Id
        OG002
        lower Limit
        0.25
        upper Limit
        0.50
        value
        0.372
denoms
  1. counts
    1. group Id
      OG000
      value
      11
    2. group Id
      OG001
      value
      281
    3. group Id
      OG002
      value
      64
    units
    Participants
description
Event-free survival is calculated from the date of study enrollment to the date of disease progression, disease relapse, occurrence of second neoplasm, or death from any cause. The product-limit (Kaplan-Meier) estimate is for estimation of Event -free survival (EFS) probability at 5 years.
dispersion Type
95% Confidence Interval
groups
  1. description
    Patients undergo observation.
    id
    OG000
    title
    GTR1 Differentiated Histology Supratentorial (Group 1)
  2. description
    Supratentorial Anaplastic Ependymoma (GTR1, GTR2, NTR) and Anaplastic or Differentiated Infratentorial Ependymoma (GTR1, GTR2, NTR) and Supratentorial Differentiated Ependymoma(GTR2, NTR). Patients undergo conformal radiation therapy to the brain once daily 5 days a week for 6-6½ weeks. radiation therapy: Given once daily 5 days a week for 6-6½ weeks
    id
    OG001
    title
    Radiation (Group 2)
  3. description
    Patients receive initial course of chemotherapy comprising vincristine sulfate IV on days 1 and 8, carboplatin IV over 1 hour on day 1, and cyclophosphamide IV over 1 hour on days 1 and 2. Patients also receive filgrastim (G-CSF) subcutaneously or IV beginning on day 3 and continuing until blood counts recover. Patients then receive a second course of chemotherapy comprising vincristine sulfate IV on days 1 and 8, carboplatin IV over 1 hour on day 1, and oral etoposide on days 1-21. After completion of chemotherapy, patients are evaluated for second therapeutic conventional surgery. Patients who have unresectable disease undergo conformal radiation therapy. Patients who have resectable disease undergo second surgery followed by conformal radiotherapy. filgrastim: Given IV or SC (5mcg/kg/day) start on Day 3 and continue until ANC \>1500/μl given subcutaneously or intravenously. carboplatin: Given IV (375 mg/m2/day) Day 1 given as an IV infusion over one hour. For patient
    id
    OG002
    title
    Sub-Total Resection Any Histology or Location (STR) (Group 3)
param Type
NUMBER
population Description
The product-limit (Kaplan-Meier) estimate is for estimation of event-free survival probability at 5 years. All eligible patients in the study were included.
reporting Status
POSTED
time Frame
Up to 5 years after completion of study treatment
title
Event-free Survival
type
PRIMARY
unit Of Measure
Probability of EFS at 5 years

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