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NCT03043313 · OUTCOME

Number of Participants With AEs Resulting in Dose Modification: Interim Analysis

Tucatinib Plus Trastuzumab in Patients With HER2+ Colorectal Cancer · Source last updated 2024-11-26

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

Measure
COUNT_OF_PARTICIPANTS
Unit
Participants
Interval / dispersion
Not reported
Time frame
Up to 49.3 months

What was measured

Dose modification included dose reduction and dose withheld by investigator due to AEs. Dose holds were defined as any instances where planned administration of the study drug was temporarily withheld or interrupted at the direction of the treating physician. Dose reductions of trastuzumab were not allowed; if trastuzumab could not be restarted after being held for a TEAE, it was discontinued.

Analysis population: The safety analysis set included participants who received any amount of study treatment. Data for cohort A and B was combined as prespecified in SAP.

Groups in this outcome

Tucatinib+Trastuzumab (Cohorts A+B)

Participants received Tucatinib 300 mg PO BID on Days 1 to 21 of each 21-day cycle. Trastuzumab 8 mg/kg by IV infusion on Day 1 of Cycle 1 and 6 mg/kg on Day 1 of each subsequent cycle until PD, death, withdrawal of consent, study closure, or alternative therapy.

Tucatinib Pre-Crossover (Cohort C)

Participants received Tucatinib 300 mg PO BID on Days 1 to 21 of each 21-day cycle. Participants who did not respond to monotherapy were given the option to receive tucatinib and trastuzumab based on radiographic progression (as determined by investigator assessment using RECIST v1.1), or if they had not achieved a PR or CR by the week 12 assessment.

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

Analysis denominator · Participants

GroupSource count
Tucatinib+Trastuzumab (Cohorts A+B)86
Tucatinib Pre-Crossover (Cohort C)30

Reported measurements

Tucatinib dose held
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Tucatinib+Trastuzumab (Cohorts A+B)20Not reportedNot reportedNot reportedNot reported
Tucatinib Pre-Crossover (Cohort C)3Not reportedNot reportedNot reportedNot reported
Tucatinib dose reduced
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Tucatinib+Trastuzumab (Cohorts A+B)8Not reportedNot reportedNot reportedNot reported
Tucatinib Pre-Crossover (Cohort C)1Not reportedNot reportedNot reportedNot reported
Trastuzumab dose held
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Tucatinib+Trastuzumab (Cohorts A+B)24Not reportedNot reportedNot reportedNot reported
Tucatinib Pre-Crossover (Cohort C)NANot reportedNot reportedNot reportedTucatinib monotherapy arm.
Trastuzumab infusion interrupted (received full dose within 24 hrs)
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Tucatinib+Trastuzumab (Cohorts A+B)6Not reportedNot reportedNot reportedNot reported
Tucatinib Pre-Crossover (Cohort C)NANot reportedNot reportedNot reportedTucatinib monotherapy arm.
Trastuzumab infusion stopped early (full dose not received)
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Tucatinib+Trastuzumab (Cohorts A+B)1Not reportedNot reportedNot reportedNot reported
Tucatinib Pre-Crossover (Cohort C)NANot reportedNot reportedNot reportedTucatinib monotherapy arm.
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        20
      2. group Id
        OG001
        value
        3
    title
    Tucatinib dose held
  2. categories
    1. measurements
      1. group Id
        OG000
        value
        8
      2. group Id
        OG001
        value
        1
    title
    Tucatinib dose reduced
  3. categories
    1. measurements
      1. group Id
        OG000
        value
        24
      2. comment
        Tucatinib monotherapy arm.
        group Id
        OG001
        value
        NA
    title
    Trastuzumab dose held
  4. categories
    1. measurements
      1. group Id
        OG000
        value
        6
      2. comment
        Tucatinib monotherapy arm.
        group Id
        OG001
        value
        NA
    title
    Trastuzumab infusion interrupted (received full dose within 24 hrs)
  5. categories
    1. measurements
      1. group Id
        OG000
        value
        1
      2. comment
        Tucatinib monotherapy arm.
        group Id
        OG001
        value
        NA
    title
    Trastuzumab infusion stopped early (full dose not received)
denoms
  1. counts
    1. group Id
      OG000
      value
      86
    2. group Id
      OG001
      value
      30
    units
    Participants
description
Dose modification included dose reduction and dose withheld by investigator due to AEs. Dose holds were defined as any instances where planned administration of the study drug was temporarily withheld or interrupted at the direction of the treating physician. Dose reductions of trastuzumab were not allowed; if trastuzumab could not be restarted after being held for a TEAE, it was discontinued.
groups
  1. description
    Participants received Tucatinib 300 mg PO BID on Days 1 to 21 of each 21-day cycle. Trastuzumab 8 mg/kg by IV infusion on Day 1 of Cycle 1 and 6 mg/kg on Day 1 of each subsequent cycle until PD, death, withdrawal of consent, study closure, or alternative therapy.
    id
    OG000
    title
    Tucatinib+Trastuzumab (Cohorts A+B)
  2. description
    Participants received Tucatinib 300 mg PO BID on Days 1 to 21 of each 21-day cycle. Participants who did not respond to monotherapy were given the option to receive tucatinib and trastuzumab based on radiographic progression (as determined by investigator assessment using RECIST v1.1), or if they had not achieved a PR or CR by the week 12 assessment.
    id
    OG001
    title
    Tucatinib Pre-Crossover (Cohort C)
param Type
COUNT_OF_PARTICIPANTS
population Description
The safety analysis set included participants who received any amount of study treatment. Data for cohort A and B was combined as prespecified in SAP.
reporting Status
POSTED
time Frame
Up to 49.3 months
title
Number of Participants With AEs Resulting in Dose Modification: Interim Analysis
type
SECONDARY
unit Of Measure
Participants

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

Preserved source evidence · Not medical advice