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NCT00005044 · OUTCOME

Time to Second Biochemical Failure (SBF) (10-year Rates Reported)

Hormone Therapy and Radiation Therapy in Treating Patients With Prostate Cancer · Source last updated 2022-06-15

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

Measure
NUMBER
Unit
percentage of participants
Interval / dispersion
95% Confidence Interval
Time frame
From randomization to 10 years. (Patients are followed until death or study termination, whichever occurs first.)

What was measured

Time to SBF measured from date of randomization to the date of PSA increase of ≥1.0 ng/mL (from the nadir PSA after completion of protocol-specified therapy) after salvage androgen suppression was started; competing risks LRP, DM, and death without SBF; all others are censored. SBF is estimated using the cumulative incidence method. Ten-year rates are reported.

Analysis population: Eligible patients with follow-up data

Groups in this outcome

TAS x 8 Weeks

Total Androgen Suppression (TAS) (LHRH agonist and Casodex or Eulexin) x 8 weeks followed by radiation therapy (RT) with concurrent TAS (LHRH agonist and Casodex or Eulexin).

TAS x 28 Weeks

TAS (LHRH agonist and Casodex or Eulexin) x 28 weeks followed by RT with concurrent TAS (LHRH agonist and Casodex or Eulexin).

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

Analysis denominator · Participants

GroupSource count
TAS x 8 Weeks752
TAS x 28 Weeks737

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
TAS x 8 Weeks10Not reported712Not reported
TAS x 28 Weeks9Not reported712Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.64
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.30
    estimate Comment
    Reference level = TAS x 8 weeks
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.62
    param Type
    Hazard Ratio (HR)
    param Value
    0.91
    statistical Comment
    2-sided significance level = 0.05
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.64
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.30
    estimate Comment
    Reference level = TAS x 8 weeks
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.62
    param Type
    Hazard Ratio (HR)
    param Value
    0.91
    statistical Comment
    2-sided significance level = 0.05
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        7
        upper Limit
        12
        value
        10
      2. group Id
        OG001
        lower Limit
        7
        upper Limit
        12
        value
        9
denoms
  1. counts
    1. group Id
      OG000
      value
      752
    2. group Id
      OG001
      value
      737
    units
    Participants
description
Time to SBF measured from date of randomization to the date of PSA increase of ≥1.0 ng/mL (from the nadir PSA after completion of protocol-specified therapy) after salvage androgen suppression was started; competing risks LRP, DM, and death without SBF; all others are censored. SBF is estimated using the cumulative incidence method. Ten-year rates are reported.
dispersion Type
95% Confidence Interval
groups
  1. description
    Total Androgen Suppression (TAS) (LHRH agonist and Casodex or Eulexin) x 8 weeks followed by radiation therapy (RT) with concurrent TAS (LHRH agonist and Casodex or Eulexin).
    id
    OG000
    title
    TAS x 8 Weeks
  2. description
    TAS (LHRH agonist and Casodex or Eulexin) x 28 weeks followed by RT with concurrent TAS (LHRH agonist and Casodex or Eulexin).
    id
    OG001
    title
    TAS x 28 Weeks
param Type
NUMBER
population Description
Eligible patients with follow-up data
reporting Status
POSTED
time Frame
From randomization to 10 years. (Patients are followed until death or study termination, whichever occurs first.)
title
Time to Second Biochemical Failure (SBF) (10-year Rates Reported)
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice