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NCT02470897 · OUTCOME

Disease-free Survival as Measured by the Phoenix Definition

Stereotactic Body Radiation Therapy With Boost Using Urethral-Sparing Intensity-Modulated Radiation Therapy Planning in Treating Patients With Prostate Cancer · Source last updated 2026-10-13

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

Measure
MEDIAN
Unit
months
Interval / dispersion
Inter-Quartile Range
Time frame
Up to 5 years

What was measured

Disease-free failure events include local progression, distant progression biochemical failure as defined by the Radiation Therapy Oncology Group (RTOG) Phoenix definition, and death from any cause. Participants will be considered to be without biochemical recurrence if either the PSA is still declining or the prostate-specific antigen (PSA) has not risen above its nadir by ≥ 2 ng/ml (Phoenix definition).

Groups in this outcome

Arm A (Moderate Dose SBRT With SIB)

Patients undergo 5 fractions of moderate dose SBRT with SIB every other day for 10 days following urethral-sparing IMRT planning. SBRT: 8.0Gy escalated dose Radiation Therapy Treatment Planning and Simulation: Undergo urethral-sparing IMRT planning SBRT: Undergo moderate dose SBRT with SIB

Arm B (Uniform Dose SBRT)

Patients undergo 5 fractions of uniform dose SBRT every other day for 10 days following urethral-sparing IMRT planning. SBRT: 7.5Gy conventional dose Radiation Therapy Treatment Planning and Simulation: Undergo urethral-sparing IMRT planning SBRT: Undergo uniform dose SBRT

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

Analysis denominator · Participants

GroupSource count
Arm A (Moderate Dose SBRT With SIB)100
Arm B (Uniform Dose SBRT)15

Reported measurements

Source class 1
Values in months · Interval/dispersion: Inter-Quartile Range
GroupValueSpreadLowerUpperComment
Arm A (Moderate Dose SBRT With SIB)NANot reportedNANAinsufficient number of participants with events
Arm B (Uniform Dose SBRT)NANot reportedNANAinsufficient number of participants with events
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        insufficient number of participants with events
        group Id
        OG000
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
      2. comment
        insufficient number of participants with events
        group Id
        OG001
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
denoms
  1. counts
    1. group Id
      OG000
      value
      100
    2. group Id
      OG001
      value
      15
    units
    Participants
description
Disease-free failure events include local progression, distant progression biochemical failure as defined by the Radiation Therapy Oncology Group (RTOG) Phoenix definition, and death from any cause. Participants will be considered to be without biochemical recurrence if either the PSA is still declining or the prostate-specific antigen (PSA) has not risen above its nadir by ≥ 2 ng/ml (Phoenix definition).
dispersion Type
Inter-Quartile Range
groups
  1. description
    Patients undergo 5 fractions of moderate dose SBRT with SIB every other day for 10 days following urethral-sparing IMRT planning. SBRT: 8.0Gy escalated dose Radiation Therapy Treatment Planning and Simulation: Undergo urethral-sparing IMRT planning SBRT: Undergo moderate dose SBRT with SIB
    id
    OG000
    title
    Arm A (Moderate Dose SBRT With SIB)
  2. description
    Patients undergo 5 fractions of uniform dose SBRT every other day for 10 days following urethral-sparing IMRT planning. SBRT: 7.5Gy conventional dose Radiation Therapy Treatment Planning and Simulation: Undergo urethral-sparing IMRT planning SBRT: Undergo uniform dose SBRT
    id
    OG001
    title
    Arm B (Uniform Dose SBRT)
param Type
MEDIAN
reporting Status
POSTED
time Frame
Up to 5 years
title
Disease-free Survival as Measured by the Phoenix Definition
type
PRIMARY
unit Of Measure
months

Download exact source JSON → · Snapshot ctgov-results-d643ffaf417bcef6d45eb5e0

Preserved source evidence · Not medical advice