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NCT00331760 · OUTCOME

Reproducibility of Radiation Technique (Number of Unacceptable Deviations in Central IMRT Quality Assurance Review)

Intensity-Modulated Radiation Therapy to the Pelvis With or Without Chemotherapy in Treating Patients With Endometrial Cancer or Cervical Cancer That Has Been Removed By Surgery · Source last updated 2019-02-26

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

Measure
NUMBER
Unit
participants
Interval / dispersion
Not reported
Time frame
IMRT planning and dosing data is centrally reviewed for quality assurance after treatment delivery.

What was measured

Central quality assurance review of the IMRT planning and dosing categorized unacceptable deviations (UD) from protocol compliance with the delineation of planning target volume for the vagina and pelvic lymph nodes. Each arm of this study is considered independently, they are not compared to each other. The study was designed such that, for each arm, 5 or more of 42 subjects scored as unacceptable would determine the respective treatment technique as not reproducible. For each arm this design provides 90% power with a 0.05 type I error to reject the null hypothesis that the true probability of concluding the given technique to be reproducible is \<= 80%. The alternative hypothesis is that the true probability is \>= 95%. For \[vagina / pelvic lymph nodes\]: UD is defined as: The 90% isodose surface covers \< 95% of \[internal target volume (ITV)/ planned target volume (PTV)\] 50.4 or \> 5% of the \[ITV/PTV\] 50.4 receives over 115%.

Analysis population: All eligible patients.

Groups in this outcome

Endometrial Cancer: IMRT

Endometrial Cancer patients receive Intensity Modulated Radiation Therapy (IMRT)

Cervical Cancer: IMRT + Chemotherapy (Cisplatin)

Cervical patients receive Intensity Modulated Radiation Therapy (IMRT) + Chemotherapy (cisplatin)

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

Analysis denominator · Participants

GroupSource count
Endometrial Cancer: IMRT43
Cervical Cancer: IMRT + Chemotherapy (Cisplatin)40

Reported measurements

Source class 1
Values in participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Endometrial Cancer: IMRT1Not reportedNot reportedNot reportedNot reported
Cervical Cancer: IMRT + Chemotherapy (Cisplatin)0Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        1
      2. group Id
        OG001
        value
        0
denoms
  1. counts
    1. group Id
      OG000
      value
      43
    2. group Id
      OG001
      value
      40
    units
    Participants
description
Central quality assurance review of the IMRT planning and dosing categorized unacceptable deviations (UD) from protocol compliance with the delineation of planning target volume for the vagina and pelvic lymph nodes. Each arm of this study is considered independently, they are not compared to each other. The study was designed such that, for each arm, 5 or more of 42 subjects scored as unacceptable would determine the respective treatment technique as not reproducible. For each arm this design provides 90% power with a 0.05 type I error to reject the null hypothesis that the true probability of concluding the given technique to be reproducible is \<= 80%. The alternative hypothesis is that the true probability is \>= 95%. For \[vagina / pelvic lymph nodes\]: UD is defined as: The 90% isodose surface covers \< 95% of \[internal target volume (ITV)/ planned target volume (PTV)\] 50.4 or \> 5% of the \[ITV/PTV\] 50.4 receives over 115%.
groups
  1. description
    Endometrial Cancer patients receive Intensity Modulated Radiation Therapy (IMRT)
    id
    OG000
    title
    Endometrial Cancer: IMRT
  2. description
    Cervical patients receive Intensity Modulated Radiation Therapy (IMRT) + Chemotherapy (cisplatin)
    id
    OG001
    title
    Cervical Cancer: IMRT + Chemotherapy (Cisplatin)
param Type
NUMBER
population Description
All eligible patients.
reporting Status
POSTED
time Frame
IMRT planning and dosing data is centrally reviewed for quality assurance after treatment delivery.
title
Reproducibility of Radiation Technique (Number of Unacceptable Deviations in Central IMRT Quality Assurance Review)
type
PRIMARY
unit Of Measure
participants

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

Preserved source evidence · Not medical advice