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NCT00045032 · OUTCOME

DTR-Free Rate According to Kaplan-Meier Analysis Compared to Observation: 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

Groups in this outcome

Observation Arm

Participants who completed definitive surgery and systemic adjuvant chemotherapy were observed for efficacy and safety until 10 years from individual randomization and for survival until 10 years after enrollment of the last participant. No Herceptin was provided.

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
Observation Arm1697
Herceptin 1-Year Arm1702
Herceptin 2-Year Arm1700

Reported measurements

Year 3
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Observation Arm79.8Not reported77.881.7Not reported
Herceptin 1-Year Arm85.9Not reported84.287.6Not reported
Herceptin 2-Year Arm88.1Not reported86.589.6Not reported
Year 5
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Observation Arm76.5Not reported74.478.5Not reported
Herceptin 1-Year Arm82.1Not reported80.284.0Not reported
Herceptin 2-Year Arm83.4Not reported81.585.2Not reported
Year 7
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Observation Arm74.0Not reported71.876.1Not reported
Herceptin 1-Year Arm80.1Not reported78.282.1Not reported
Herceptin 2-Year Arm80.7Not reported78.882.6Not reported
Year 8
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Observation Arm73.3Not reported71.175.5Not reported
Herceptin 1-Year Arm79.5Not reported77.581.5Not reported
Herceptin 2-Year Arm80.3Not reported78.382.2Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        77.8
        upper Limit
        81.7
        value
        79.8
      2. group Id
        OG001
        lower Limit
        84.2
        upper Limit
        87.6
        value
        85.9
      3. group Id
        OG002
        lower Limit
        86.5
        upper Limit
        89.6
        value
        88.1
    title
    Year 3
  2. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        74.4
        upper Limit
        78.5
        value
        76.5
      2. group Id
        OG001
        lower Limit
        80.2
        upper Limit
        84.0
        value
        82.1
      3. group Id
        OG002
        lower Limit
        81.5
        upper Limit
        85.2
        value
        83.4
    title
    Year 5
  3. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        71.8
        upper Limit
        76.1
        value
        74.0
      2. group Id
        OG001
        lower Limit
        78.2
        upper Limit
        82.1
        value
        80.1
      3. group Id
        OG002
        lower Limit
        78.8
        upper Limit
        82.6
        value
        80.7
    title
    Year 7
  4. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        71.1
        upper Limit
        75.5
        value
        73.3
      2. group Id
        OG001
        lower Limit
        77.5
        upper Limit
        81.5
        value
        79.5
      3. group Id
        OG002
        lower Limit
        78.3
        upper Limit
        82.2
        value
        80.3
    title
    Year 8
denoms
  1. counts
    1. group Id
      OG000
      value
      1697
    2. group Id
      OG001
      value
      1702
    3. group Id
      OG002
      value
      1700
    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 were observed for efficacy and safety until 10 years from individual randomization and for survival until 10 years after enrollment of the last participant. No Herceptin was provided.
    id
    OG000
    title
    Observation 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 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
    OG001
    title
    Herceptin 1-Year Arm
  3. 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
    OG002
    title
    Herceptin 2-Year Arm
param Type
NUMBER
population Description
FAS Population
reporting Status
POSTED
time Frame
Years 3, 5, 7, 8
title
DTR-Free Rate According to Kaplan-Meier Analysis Compared to Observation: 8-Year Median Follow-Up
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice