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NCT04639219 · OUTCOME

Percentage of Participants Alive at 6 and 12 Months

A Study of T-DXd for the Treatment of Solid Tumors Harboring HER2 Activating Mutations · Source last updated 2026-03-23

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
At Months 6 and 12

What was measured

Percentage of participants alive at 6 and 12 months are reported. It was calculated using the Kaplan-Meier technique. CI for median PFS derived based on the Brookmeyer-Crowley method.

Analysis population: The FAS consisted of all participants who received at least 1 dose of study treatment.

Groups in this outcome

T-DXd

Participants harboring tumors with specific HER2 activating mutations received T-DXd 5.4 mg/kg via IV infusion on Day 1 of each cycle (21 days), every 3 weeks until RECIST v1.1-defined PD, withdrawal of consent, or until any other of the discontinuation criteria was met.

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

Analysis denominator · Participants

GroupSource count
T-DXd102

Reported measurements

Survival rate at 6 months
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
T-DXd67.6Not reported57.475.9Not reported
Survival rate at 12 months
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
T-DXd46.3Not reported35.756.3Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        57.4
        upper Limit
        75.9
        value
        67.6
    title
    Survival rate at 6 months
  2. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        35.7
        upper Limit
        56.3
        value
        46.3
    title
    Survival rate at 12 months
denoms
  1. counts
    1. group Id
      OG000
      value
      102
    units
    Participants
description
Percentage of participants alive at 6 and 12 months are reported. It was calculated using the Kaplan-Meier technique. CI for median PFS derived based on the Brookmeyer-Crowley method.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants harboring tumors with specific HER2 activating mutations received T-DXd 5.4 mg/kg via IV infusion on Day 1 of each cycle (21 days), every 3 weeks until RECIST v1.1-defined PD, withdrawal of consent, or until any other of the discontinuation criteria was met.
    id
    OG000
    title
    T-DXd
param Type
NUMBER
population Description
The FAS consisted of all participants who received at least 1 dose of study treatment.
reporting Status
POSTED
time Frame
At Months 6 and 12
title
Percentage of Participants Alive at 6 and 12 Months
type
SECONDARY
unit Of Measure
percentage of participants

Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f

Preserved source evidence · Not medical advice