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NCT00045032 · OUTCOME

DTR-Free Rate According to Kaplan-Meier Analysis in 1-Year Versus 2-Year Herceptin: 8-Year Median Follow-Up

Herceptin (Trastuzumab) in Treating Women With Human Epidermal Growth Factor Receptor (HER) 2-Positive Primary Breast Cancer · Source last updated 2017-04-27

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
Years 3, 5, 7, 8

What was measured

The percentage of participants without DTR (i.e., the DTR-free rate) and corresponding 95% CI were estimated by Kaplan-Meier analysis based on available data at the time of the 8-year median follow-up analysis. DTR included distant tumors ignoring local and regional recurrences, contralateral breast cancer, and second non-breast malignancy.

Analysis population: FAS Population 1Y2Y

Groups in this outcome

Herceptin 1-Year Arm

Participants who completed definitive surgery and systemic adjuvant chemotherapy received a loading dose of Herceptin as 8 mg/kg via IV infusion on Day 1, followed by a maintenance dose of 6 mg/kg via IV infusion 3 weeks later and thereafter every 3 weeks for 1 year or until disease recurrence, whichever occurred first. Participants were observed for efficacy and safety until 10 years from individual randomization and for survival until 10 years after enrollment of the last participant.

Herceptin 2-Year Arm

Participants who completed definitive surgery and systemic adjuvant chemotherapy received a loading dose of Herceptin as 8 mg/kg via IV infusion on Day 1, followed by a maintenance dose of 6 mg/kg via IV infusion 3 weeks later and thereafter every 3 weeks for 2 years or until disease recurrence, whichever occurred first. Participants were observed for efficacy and safety until 10 years from individual randomization and for survival until 10 years after enrollment of the last participant.

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

Analysis denominator · Participants

GroupSource count
Herceptin 1-Year Arm1552
Herceptin 2-Year Arm1553

Reported measurements

Year 3
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Herceptin 1-Year Arm90.5Not reported89.091.9Not reported
Herceptin 2-Year Arm92.4Not reported91.193.8Not reported
Year 5
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Herceptin 1-Year Arm86.7Not reported85.088.4Not reported
Herceptin 2-Year Arm87.5Not reported85.889.2Not reported
Year 7
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Herceptin 1-Year Arm84.6Not reported82.886.4Not reported
Herceptin 2-Year Arm84.9Not reported83.186.7Not reported
Year 8
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Herceptin 1-Year Arm83.9Not reported82.185.8Not reported
Herceptin 2-Year Arm84.4Not reported82.686.3Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        89.0
        upper Limit
        91.9
        value
        90.5
      2. group Id
        OG001
        lower Limit
        91.1
        upper Limit
        93.8
        value
        92.4
    title
    Year 3
  2. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        85.0
        upper Limit
        88.4
        value
        86.7
      2. group Id
        OG001
        lower Limit
        85.8
        upper Limit
        89.2
        value
        87.5
    title
    Year 5
  3. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        82.8
        upper Limit
        86.4
        value
        84.6
      2. group Id
        OG001
        lower Limit
        83.1
        upper Limit
        86.7
        value
        84.9
    title
    Year 7
  4. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        82.1
        upper Limit
        85.8
        value
        83.9
      2. group Id
        OG001
        lower Limit
        82.6
        upper Limit
        86.3
        value
        84.4
    title
    Year 8
denoms
  1. counts
    1. group Id
      OG000
      value
      1552
    2. group Id
      OG001
      value
      1553
    units
    Participants
description
The percentage of participants without DTR (i.e., the DTR-free rate) and corresponding 95% CI were estimated by Kaplan-Meier analysis based on available data at the time of the 8-year median follow-up analysis. DTR included distant tumors ignoring local and regional recurrences, contralateral breast cancer, and second non-breast malignancy.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants who completed definitive surgery and systemic adjuvant chemotherapy received a loading dose of Herceptin as 8 mg/kg via IV infusion on Day 1, followed by a maintenance dose of 6 mg/kg via IV infusion 3 weeks later and thereafter every 3 weeks for 1 year or until disease recurrence, whichever occurred first. Participants were observed for efficacy and safety until 10 years from individual randomization and for survival until 10 years after enrollment of the last participant.
    id
    OG000
    title
    Herceptin 1-Year Arm
  2. description
    Participants who completed definitive surgery and systemic adjuvant chemotherapy received a loading dose of Herceptin as 8 mg/kg via IV infusion on Day 1, followed by a maintenance dose of 6 mg/kg via IV infusion 3 weeks later and thereafter every 3 weeks for 2 years or until disease recurrence, whichever occurred first. Participants were observed for efficacy and safety until 10 years from individual randomization and for survival until 10 years after enrollment of the last participant.
    id
    OG001
    title
    Herceptin 2-Year Arm
param Type
NUMBER
population Description
FAS Population 1Y2Y
reporting Status
POSTED
time Frame
Years 3, 5, 7, 8
title
DTR-Free Rate According to Kaplan-Meier Analysis in 1-Year Versus 2-Year Herceptin: 8-Year Median Follow-Up
type
SECONDARY
unit Of Measure
percentage of participants

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