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NCT01853748 · OUTCOME

Median Overall Survival (OS)

T-DM1 vs Paclitaxel/Trastuzumab for Breast (ATEMPT Trial) · Source last updated 2026-02-19

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

Measure
NUMBER
Unit
months
Interval / dispersion
95% Confidence Interval
Time frame
Reported every 3 weeks for the first 12 weeks, then every 9 weeks for the subsequent 39 weeks, then follow-up up to 5 years after completion of study treatment or until death, whichever occurs first.

What was measured

OS is evaluated in patients with Stage I HER2-positive breast cancer treated with trastuzumab emtansine

Groups in this outcome

Trastuzumab Emtansine (T-DM1)

T-DM1 3.6mg/kg every three weeks by IV for 17 doses for a total of 51 weeks

Paclitaxel + Trastuzumab (TH)

paclitaxel 80 mg/m2 IV weekly and trastuzumab 4 mg/kg IV load, followed by 2 mg/kg IV weekly for 12 weeks, followed by trastuzumab 6 mg/kg IV every 3 weeks for 13 treatments

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 Emtansine (T-DM1)383
Paclitaxel + Trastuzumab (TH)114

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Trastuzumab Emtansine (T-DM1)NANot reportedNANAThe cohorts have good overall survival outcome, and never reached the median survival. The overall survival rate at month 80, the longest follow up time of the cohort, is 98%. Therefore, the median survival and the corresponding 95% CI can not be estimated.
Paclitaxel + Trastuzumab (TH)NANot reportedNANAThe cohorts have good overall survival outcome, and never reached the median survival. The overall survival rate at month 80, the longest follow up time of the cohort, is 98%. Therefore, the median survival and the corresponding 95% CI can not be estimated.
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        The cohorts have good overall survival outcome, and never reached the median survival. The overall survival rate at month 80, the longest follow up time of the cohort, is 98%. Therefore, the median survival and the corresponding 95% CI can not be estimated.
        group Id
        OG000
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
      2. comment
        The cohorts have good overall survival outcome, and never reached the median survival. The overall survival rate at month 80, the longest follow up time of the cohort, is 98%. Therefore, the median survival and the corresponding 95% CI can not be estimated.
        group Id
        OG001
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
denoms
  1. counts
    1. group Id
      OG000
      value
      383
    2. group Id
      OG001
      value
      114
    units
    Participants
description
OS is evaluated in patients with Stage I HER2-positive breast cancer treated with trastuzumab emtansine
dispersion Type
95% Confidence Interval
groups
  1. description
    T-DM1 3.6mg/kg every three weeks by IV for 17 doses for a total of 51 weeks
    id
    OG000
    title
    Trastuzumab Emtansine (T-DM1)
  2. description
    paclitaxel 80 mg/m2 IV weekly and trastuzumab 4 mg/kg IV load, followed by 2 mg/kg IV weekly for 12 weeks, followed by trastuzumab 6 mg/kg IV every 3 weeks for 13 treatments
    id
    OG001
    title
    Paclitaxel + Trastuzumab (TH)
param Type
NUMBER
reporting Status
POSTED
time Frame
Reported every 3 weeks for the first 12 weeks, then every 9 weeks for the subsequent 39 weeks, then follow-up up to 5 years after completion of study treatment or until death, whichever occurs first.
title
Median Overall Survival (OS)
type
SECONDARY
unit Of Measure
months

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice