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NCT01120184 · OUTCOME

OS at Clinical Cutoff Among Those With High HER2 mRNA Levels

A Study of Trastuzumab Emtansine (T-DM1) Plus Pertuzumab/Pertuzumab Placebo Versus Trastuzumab [Herceptin] Plus a Taxane in Participants With Metastatic Breast Cancer (MARIANNE) · Source last updated 2024-03-04

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

Measure
MEDIAN
Unit
months
Interval / dispersion
Full Range
Time frame
Up to 70 months from randomization until clinical cutoff of 15-May-2016 (every 3 months until death, loss to follow-up, withdrawal, or study termination)

What was measured

OS was defined as the time from randomization to death from any cause. Median duration of OS was estimated using Kaplan-Meier analysis.

Analysis population: ITT Population (High HER2 mRNA Subpopulation).

Groups in this outcome

Trastuzumab + Taxane

Participants received trastuzumab plus either docetaxel or paclitaxel. The regimen was chosen at the investigator's discretion. Option 1: trastuzumab 8 mg/kg via IV infusion on Day 1 of Cycle 1, then 6 mg/kg IV on Day 1 of each subsequent 3-week cycle; plus a minimum of 6 cycles with docetaxel 75 or 100 mg/m\^2 IV on Day 1 of each 3-week cycle. Option 2: trastuzumab 4 mg/kg IV on Day 1 of Cycle 1, then 2 mg/kg IV weekly beginning on Day 8 of Cycle 1; plus a minimum of 18 weeks with paclitaxel 80 mg/m\^2 IV weekly. Treatment continued until disease progression, unacceptable toxicity, or study termination. If trastuzumab or docetaxel were discontinued for toxicity, the other agent could be continued as monotherapy.

Trastuzumab Emtansine + Placebo

Participants received trastuzumab emtansine plus pertuzumab-placebo. Trastuzumab emtansine was administered as 3.6 mg/kg via IV infusion, following completion of the placebo IV infusion, on Day 1 of each 3-week cycle. Treatment continued until disease progression, unacceptable toxicity, or study termination.

Trastuzumab Emtansine + Pertuzumab

Participants received trastuzumab emtansine plus pertuzumab. Trastuzumab emtansine was administered as 3.6 mg/kg via IV infusion, following completion of the pertuzumab IV infusion, on Day 1 of each 3-week cycle. Pertuzumab was given as 840 mg IV on Day 1 of Cycle 1, then 420 mg IV on Day 1 of each subsequent 3-week cycle. Treatment continued until disease progression, unacceptable toxicity, or study termination.

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

Analysis denominator · Participants

GroupSource count
Trastuzumab + Taxane160
Trastuzumab Emtansine + Placebo165
Trastuzumab Emtansine + Pertuzumab173

Reported measurements

Source class 1
Values in months · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Trastuzumab + TaxaneNANot reported50.86NAMedian duration of OS was not reached due to insufficient follow-up. Upper limit of CI was not reached due to low number of participants with events.
Trastuzumab Emtansine + Placebo65.97Not reported54.5467.98Not reported
Trastuzumab Emtansine + Pertuzumab55.39Not reported48.23NAUpper limit of CI was not reached due to low number of participants with events.
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        Median duration of OS was not reached due to insufficient follow-up. Upper limit of CI was not reached due to low number of participants with events.
        group Id
        OG000
        lower Limit
        50.86
        upper Limit
        NA
        value
        NA
      2. group Id
        OG001
        lower Limit
        54.54
        upper Limit
        67.98
        value
        65.97
      3. comment
        Upper limit of CI was not reached due to low number of participants with events.
        group Id
        OG002
        lower Limit
        48.23
        upper Limit
        NA
        value
        55.39
denoms
  1. counts
    1. group Id
      OG000
      value
      160
    2. group Id
      OG001
      value
      165
    3. group Id
      OG002
      value
      173
    units
    Participants
description
OS was defined as the time from randomization to death from any cause. Median duration of OS was estimated using Kaplan-Meier analysis.
dispersion Type
Full Range
groups
  1. description
    Participants received trastuzumab plus either docetaxel or paclitaxel. The regimen was chosen at the investigator's discretion. Option 1: trastuzumab 8 mg/kg via IV infusion on Day 1 of Cycle 1, then 6 mg/kg IV on Day 1 of each subsequent 3-week cycle; plus a minimum of 6 cycles with docetaxel 75 or 100 mg/m\^2 IV on Day 1 of each 3-week cycle. Option 2: trastuzumab 4 mg/kg IV on Day 1 of Cycle 1, then 2 mg/kg IV weekly beginning on Day 8 of Cycle 1; plus a minimum of 18 weeks with paclitaxel 80 mg/m\^2 IV weekly. Treatment continued until disease progression, unacceptable toxicity, or study termination. If trastuzumab or docetaxel were discontinued for toxicity, the other agent could be continued as monotherapy.
    id
    OG000
    title
    Trastuzumab + Taxane
  2. description
    Participants received trastuzumab emtansine plus pertuzumab-placebo. Trastuzumab emtansine was administered as 3.6 mg/kg via IV infusion, following completion of the placebo IV infusion, on Day 1 of each 3-week cycle. Treatment continued until disease progression, unacceptable toxicity, or study termination.
    id
    OG001
    title
    Trastuzumab Emtansine + Placebo
  3. description
    Participants received trastuzumab emtansine plus pertuzumab. Trastuzumab emtansine was administered as 3.6 mg/kg via IV infusion, following completion of the pertuzumab IV infusion, on Day 1 of each 3-week cycle. Pertuzumab was given as 840 mg IV on Day 1 of Cycle 1, then 420 mg IV on Day 1 of each subsequent 3-week cycle. Treatment continued until disease progression, unacceptable toxicity, or study termination.
    id
    OG002
    title
    Trastuzumab Emtansine + Pertuzumab
param Type
MEDIAN
population Description
ITT Population (High HER2 mRNA Subpopulation).
reporting Status
POSTED
time Frame
Up to 70 months from randomization until clinical cutoff of 15-May-2016 (every 3 months until death, loss to follow-up, withdrawal, or study termination)
title
OS at Clinical Cutoff Among Those With High HER2 mRNA Levels
type
SECONDARY
unit Of Measure
months

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