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NCT01523587 · OUTCOME

Tumour Shrinkage

LUX-Lung 8: A Phase III Trial of Afatinib (BIBW 2992) Versus Erlotinib for the Treatment of Squamous Cell Lung Cancer After at Least One Prior Platinum Based Chemotherapy · Source last updated 2019-02-15

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

Measure
LEAST_SQUARES_MEAN
Unit
Millimeter (mm)
Interval / dispersion
Standard Error
Time frame
First treatment administration up until cut off date of 02 March 2015 (up to 1058 days).

What was measured

Maximum percentage decrease from baseline in the sum of target lesion diameters following independent review. The change in the size (i.e. the sum of diameters (SOD)) of target lesions from baseline was derived. Tumour shrinkage for each patient was measured (based on Independent Radiologic Review (IRR)) as the minimum SOD of target lesions after randomisation. A negative percentage indicates decrease from baseline; positive numbers indicate an increase of tumour size. The mean maximum decrease from baseline of +5 and +9.4 reflect an average increase in tumour size. Post-baseline mean is adjusted for baseline sum of diameters and race.

Analysis population: Patients from the randomised set with tumour assessments are considered for the analysis of this endpoint.

Groups in this outcome

Afatinib

Patients administered 40 milligram (mg) film-coated tablet once daily orally for the first 28-day treatment course. Dose escalation to 50 mg once daily was allowed at the beginning of the second 28-day treatment course, if patients met specified safety and compliance criteria. Dose reduction to 40 mg/day (if applicable), 30 mg/day, or 20 mg/day, was required in the presence of known drug-related adverse events.

Erlotinib

Patients administered 150 mg film-coated tablet once daily orally, with dose reduction to 100 mg/day or 50 mg/day in the presence of known drug-related adverse events.

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

Analysis denominator · Participants

GroupSource count
Afatinib307
Erlotinib311

Reported measurements

Source class 1
Values in Millimeter (mm) · Interval/dispersion: Standard Error
GroupValueSpreadLowerUpperComment
Afatinib78.81.26Not reportedNot reportedNot reported
Erlotinib80.01.24Not reportedNot reportedNot reported

Source statistical analyses

Group order, estimate direction, methods and comments are retained. No treatment ranking is inferred.

  1. ci Lower Limit
    -4.67
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    2.28
    dispersion Type
    STANDARD_ERROR_OF_MEAN
    dispersion Value
    1.77
    estimate Comment
    Mean was adjusted for baseline sum of diameters and race.
    group Description
    The analysis will compare the treatments using analysis of covariance (ANCOVA) for minimum sum of diameters, using baseline sum of diameters as a covariate. The randomization strata will be included as classification factors.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.500
    param Type
    Adjusted mean
    param Value
    -1.2
    statistical Method
    ANCOVA
Complete source fields
analyses
  1. ci Lower Limit
    -4.67
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    2.28
    dispersion Type
    STANDARD_ERROR_OF_MEAN
    dispersion Value
    1.77
    estimate Comment
    Mean was adjusted for baseline sum of diameters and race.
    group Description
    The analysis will compare the treatments using analysis of covariance (ANCOVA) for minimum sum of diameters, using baseline sum of diameters as a covariate. The randomization strata will be included as classification factors.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.500
    param Type
    Adjusted mean
    param Value
    -1.2
    statistical Method
    ANCOVA
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        spread
        1.26
        value
        78.8
      2. group Id
        OG001
        spread
        1.24
        value
        80.0
denoms
  1. counts
    1. group Id
      OG000
      value
      307
    2. group Id
      OG001
      value
      311
    units
    Participants
description
Maximum percentage decrease from baseline in the sum of target lesion diameters following independent review. The change in the size (i.e. the sum of diameters (SOD)) of target lesions from baseline was derived. Tumour shrinkage for each patient was measured (based on Independent Radiologic Review (IRR)) as the minimum SOD of target lesions after randomisation. A negative percentage indicates decrease from baseline; positive numbers indicate an increase of tumour size. The mean maximum decrease from baseline of +5 and +9.4 reflect an average increase in tumour size. Post-baseline mean is adjusted for baseline sum of diameters and race.
dispersion Type
Standard Error
groups
  1. description
    Patients administered 40 milligram (mg) film-coated tablet once daily orally for the first 28-day treatment course. Dose escalation to 50 mg once daily was allowed at the beginning of the second 28-day treatment course, if patients met specified safety and compliance criteria. Dose reduction to 40 mg/day (if applicable), 30 mg/day, or 20 mg/day, was required in the presence of known drug-related adverse events.
    id
    OG000
    title
    Afatinib
  2. description
    Patients administered 150 mg film-coated tablet once daily orally, with dose reduction to 100 mg/day or 50 mg/day in the presence of known drug-related adverse events.
    id
    OG001
    title
    Erlotinib
param Type
LEAST_SQUARES_MEAN
population Description
Patients from the randomised set with tumour assessments are considered for the analysis of this endpoint.
reporting Status
POSTED
time Frame
First treatment administration up until cut off date of 02 March 2015 (up to 1058 days).
title
Tumour Shrinkage
type
SECONDARY
unit Of Measure
Millimeter (mm)

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

Preserved source evidence · Not medical advice