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NCT01772472 · OUTCOME

Percentage of Participants With Cardiac Events as Adjudicated by the Cardiac Review Committee

A Study of Trastuzumab Emtansine Versus Trastuzumab as Adjuvant Therapy in Patients With HER2-Positive Breast Cancer Who Have Residual Tumor in the Breast or Axillary Lymph Nodes Following Preoperative Therapy (KATHERINE) · Source last updated 2025-07-22

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
Not reported
Time frame
Up to approximately 126 months

What was measured

Cardiac events were defined as death from cardiac cause or severe congestive heart failure (New York Heart Association \[NYHA\] Class III or IV) with a decrease in left ventricular ejection fraction (LVEF) of 10 percentage points or more from baseline to an LVEF of \< 50%. Other cardiac-related events (e.g., any symptomatic congestive heart failure \[CHF\] associated with a 10% drop in LVEF to \< 50%; asymptomatic declines in LVEF requiring dose delay) were summarized as adjudicated by the Cardiac Review Committee. Percentages have been rounded off.

Analysis population: SE population included all randomized participants who received any amount of study treatment.

Groups in this outcome

Trastuzumab

Participants received trastuzumab, 6 mg/kg, IV, Q3W, as a maintenance dose for 14 cycles (1 cycle = 21 days) or until disease recurrence or unacceptable toxicity which ever occurs first.

Trastuzumab Emtansine

Participants received trastuzumab emtansine, 3.6 mg/kg, IV, Q3W for 14 cycles (1 cycle = 21 days) or until disease recurrence or unacceptable toxicity which ever occurs first.

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

Analysis denominator · Participants

GroupSource count
Trastuzumab720
Trastuzumab Emtansine740

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Trastuzumab4.2Not reportedNot reportedNot reportedNot reported
Trastuzumab Emtansine3.1Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        4.2
      2. group Id
        OG001
        value
        3.1
denoms
  1. counts
    1. group Id
      OG000
      value
      720
    2. group Id
      OG001
      value
      740
    units
    Participants
description
Cardiac events were defined as death from cardiac cause or severe congestive heart failure (New York Heart Association \[NYHA\] Class III or IV) with a decrease in left ventricular ejection fraction (LVEF) of 10 percentage points or more from baseline to an LVEF of \< 50%. Other cardiac-related events (e.g., any symptomatic congestive heart failure \[CHF\] associated with a 10% drop in LVEF to \< 50%; asymptomatic declines in LVEF requiring dose delay) were summarized as adjudicated by the Cardiac Review Committee. Percentages have been rounded off.
groups
  1. description
    Participants received trastuzumab, 6 mg/kg, IV, Q3W, as a maintenance dose for 14 cycles (1 cycle = 21 days) or until disease recurrence or unacceptable toxicity which ever occurs first.
    id
    OG000
    title
    Trastuzumab
  2. description
    Participants received trastuzumab emtansine, 3.6 mg/kg, IV, Q3W for 14 cycles (1 cycle = 21 days) or until disease recurrence or unacceptable toxicity which ever occurs first.
    id
    OG001
    title
    Trastuzumab Emtansine
param Type
NUMBER
population Description
SE population included all randomized participants who received any amount of study treatment.
reporting Status
POSTED
time Frame
Up to approximately 126 months
title
Percentage of Participants With Cardiac Events as Adjudicated by the Cardiac Review Committee
type
SECONDARY
unit Of Measure
percentage of participants

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

Preserved source evidence · Not medical advice