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NCT01121393 · OUTCOME

Objective Response (OR)

BIBW 2992 (Afatinib) vs Gemcitabine-cisplatin in 1st Line Non-small Cell Lung Cancer (NSCLC) · Source last updated 2018-12-14

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
Tumour assessment were performed at screening, week 6, 12, 18, 24, 30, 36, 42, 48 and then every 12 weeks until progression or death whichever occurs first up to week 374

What was measured

OR is defined as a best overall response of complete response (CR) or partial response (PR) assessed by central independent review according to RECIST version 1.1 and will be presented as the percentage of patients with OR. CR is defined as the disappearance of all target lesions and non-target lesions and no new lesions. PR is defined as at least a 30% decrease in the sum of longest diameter (LD) of target lesions taking as reference the baseline sum LD, non-Progressive Disease or non evaluation of all non-target lesions and no new lesions. (Exact 95% Confidence interval by Clopper and Pearson.)

Analysis population: The randomised set.

Groups in this outcome

Afatinib 40 Milligram (mg)

Patients received Afatinib film-coated tablets 40 mg once daily (q.d.) orally with possible dose escalation to 50 mg q.d. and dose reduction to 40 mg q.d. (if applicable), 30 mg q.d., or 20 mg q.d. (according to the protocol-defined dose-escalation and dose-reduction scheme), if required. No dose increase was allowed after dose reduction. Each treatment course was planned to be 21 days. For afatinib, patients received continuous daily dosing until disease progression, unacceptable adverse events (AEs) occurred, or withdrawal of consent for any reason.

Gemcitabine / Cisplatin Chemotherapy

Patients received Gemcitabine (lyophilised powder) 1000 milligram per square metre (mg/m²) as an intravenous infusion over 30 minutes on day 1 and day 8, cisplatin (solution for infusion) 75 mg/m² as an intravenous infusion on Day 1 of each 21-day treatment course up to 6 cycles; Chemotherapy could be delayed or the dose could be reduced in accordance with the guidance in the current summary of product characteristics. For gemcitabine / cisplatin, patients were to receive a maximum of 6 treatment courses unless they developed disease progression, experienced unacceptable AEs, or withdrawal of consent for any reason.

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

Analysis denominator · Participants

GroupSource count
Afatinib 40 Milligram (mg)242
Gemcitabine / Cisplatin Chemotherapy122

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Afatinib 40 Milligram (mg)67.8Not reported61.573.6Not reported
Gemcitabine / Cisplatin Chemotherapy23.0Not reported15.831.4Not reported

Source statistical analyses

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

  1. ci Lower Limit
    4.522
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    12.679
    group Description
    A logistic regression model, stratified by EGFR mutation category was used to compare the objective response rate between the 2 treatment arms.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.0001
    param Type
    Odds Ratio (OR)
    param Value
    7.572
    statistical Method
    Regression, Logistic
Complete source fields
analyses
  1. ci Lower Limit
    4.522
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    12.679
    group Description
    A logistic regression model, stratified by EGFR mutation category was used to compare the objective response rate between the 2 treatment arms.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.0001
    param Type
    Odds Ratio (OR)
    param Value
    7.572
    statistical Method
    Regression, Logistic
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        61.5
        upper Limit
        73.6
        value
        67.8
      2. group Id
        OG001
        lower Limit
        15.8
        upper Limit
        31.4
        value
        23.0
denoms
  1. counts
    1. group Id
      OG000
      value
      242
    2. group Id
      OG001
      value
      122
    units
    Participants
description
OR is defined as a best overall response of complete response (CR) or partial response (PR) assessed by central independent review according to RECIST version 1.1 and will be presented as the percentage of patients with OR. CR is defined as the disappearance of all target lesions and non-target lesions and no new lesions. PR is defined as at least a 30% decrease in the sum of longest diameter (LD) of target lesions taking as reference the baseline sum LD, non-Progressive Disease or non evaluation of all non-target lesions and no new lesions. (Exact 95% Confidence interval by Clopper and Pearson.)
dispersion Type
95% Confidence Interval
groups
  1. description
    Patients received Afatinib film-coated tablets 40 mg once daily (q.d.) orally with possible dose escalation to 50 mg q.d. and dose reduction to 40 mg q.d. (if applicable), 30 mg q.d., or 20 mg q.d. (according to the protocol-defined dose-escalation and dose-reduction scheme), if required. No dose increase was allowed after dose reduction. Each treatment course was planned to be 21 days. For afatinib, patients received continuous daily dosing until disease progression, unacceptable adverse events (AEs) occurred, or withdrawal of consent for any reason.
    id
    OG000
    title
    Afatinib 40 Milligram (mg)
  2. description
    Patients received Gemcitabine (lyophilised powder) 1000 milligram per square metre (mg/m²) as an intravenous infusion over 30 minutes on day 1 and day 8, cisplatin (solution for infusion) 75 mg/m² as an intravenous infusion on Day 1 of each 21-day treatment course up to 6 cycles; Chemotherapy could be delayed or the dose could be reduced in accordance with the guidance in the current summary of product characteristics. For gemcitabine / cisplatin, patients were to receive a maximum of 6 treatment courses unless they developed disease progression, experienced unacceptable AEs, or withdrawal of consent for any reason.
    id
    OG001
    title
    Gemcitabine / Cisplatin Chemotherapy
param Type
NUMBER
population Description
The randomised set.
reporting Status
POSTED
time Frame
Tumour assessment were performed at screening, week 6, 12, 18, 24, 30, 36, 42, 48 and then every 12 weeks until progression or death whichever occurs first up to week 374
title
Objective Response (OR)
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice