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NCT01041404 · OUTCOME

Percentage of Participants With Clinical Benefit

ToGA Study - A Study of Herceptin (Trastuzumab) in Combination With Chemotherapy Compared With Chemotherapy Alone in Patients With HER2-Positive Advanced Gastric Cancer · Source last updated 2014-11-05

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
BL, Days 43, 85, and 127, and every 21 days thereafter until disease progression or the end of study, 1 year after the cut-off date for the 2nd interim efficacy analysis

What was measured

Clinical benefit was defined as stable disease (SD), CR, or PR for 6 weeks or longer as determined by RECIST. For TLs, SD was defined as neither sufficient shrinkage to qualify for PR, nor sufficient increase to qualify for PD, taking as a reference the smallest SLD recorded since treatment had started. For NTLs, SD was defined as a persistence of one or more NTLs and/or maintenance of tumor marker levels above the normal limits.

Analysis population: FAS

Groups in this outcome

Fluoropyrimidine/Cisplatin (FP)

Participants received fluoropyrimidine (EITHER 5-FU or capecitabine, at the investigator's discretion) and cisplatin once every 3 weeks (one cycle) for a maximum of 6 cycles as follows: cisplatin 80 mg/m\^2, IV, on Day 1 and EITHER: 5-FU 800 mg/m\^2 continuous IV infusion on Days 1 through 5 OR capecitabine 1000 mg/m\^2, tablets, PO, BID from the evening of Day 1 through the morning of Day 15.

Trastuzumab + Fluoropyrimidine/Cisplatin (FP + H)

Participants received trastuzumab plus fluoropyrimidine (EITHER 5-FU or capecitabine, at the investigator's discretion) and cisplatin once every 3 weeks (one cycle) for a maximum of 6 cycles (except as noted) as follows: trastuzumab 8 mg/kg, IV, on Day 1 (Cycle 1), followed by 6 mg/kg, IV (Cycles 2 onward, administered until disease progression); cisplatin 80 mg/m\^2 IV on Day 1; and EITHER 5-FU 800 mg/m\^2 continuous IV infusion on Days 1 through 5 OR capecitabine 1000 mg/m\^2 tablets, PO BID from the evening of Day 1 through the morning of Day 15.

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

Analysis denominator · Participants

GroupSource count
Fluoropyrimidine/Cisplatin (FP)290
Trastuzumab + Fluoropyrimidine/Cisplatin (FP + H)294

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Fluoropyrimidine/Cisplatin (FP)69.3Not reported63.774.6Not reported
Trastuzumab + Fluoropyrimidine/Cisplatin (FP + H)78.9Not reported73.883.4Not reported

Source statistical analyses

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

  1. ci Lower Limit
    2.4
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    16.9
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.0081
    param Type
    Difference in Clinical Benefit Rate
    param Value
    9.60
    statistical Method
    Chi-squared
    tested Non Inferiority
    false
  2. ci Lower Limit
    1.14
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    2.41
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    param Type
    Odds Ratio (OR)
    param Value
    1.66
    tested Non Inferiority
    false
Complete source fields
analyses
  1. ci Lower Limit
    2.4
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    16.9
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.0081
    param Type
    Difference in Clinical Benefit Rate
    param Value
    9.60
    statistical Method
    Chi-squared
    tested Non Inferiority
    false
  2. ci Lower Limit
    1.14
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    2.41
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    param Type
    Odds Ratio (OR)
    param Value
    1.66
    tested Non Inferiority
    false
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        63.7
        upper Limit
        74.6
        value
        69.3
      2. group Id
        OG001
        lower Limit
        73.8
        upper Limit
        83.4
        value
        78.9
denoms
  1. counts
    1. group Id
      OG000
      value
      290
    2. group Id
      OG001
      value
      294
    units
    Participants
description
Clinical benefit was defined as stable disease (SD), CR, or PR for 6 weeks or longer as determined by RECIST. For TLs, SD was defined as neither sufficient shrinkage to qualify for PR, nor sufficient increase to qualify for PD, taking as a reference the smallest SLD recorded since treatment had started. For NTLs, SD was defined as a persistence of one or more NTLs and/or maintenance of tumor marker levels above the normal limits.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received fluoropyrimidine (EITHER 5-FU or capecitabine, at the investigator's discretion) and cisplatin once every 3 weeks (one cycle) for a maximum of 6 cycles as follows: cisplatin 80 mg/m\^2, IV, on Day 1 and EITHER: 5-FU 800 mg/m\^2 continuous IV infusion on Days 1 through 5 OR capecitabine 1000 mg/m\^2, tablets, PO, BID from the evening of Day 1 through the morning of Day 15.
    id
    OG000
    title
    Fluoropyrimidine/Cisplatin (FP)
  2. description
    Participants received trastuzumab plus fluoropyrimidine (EITHER 5-FU or capecitabine, at the investigator's discretion) and cisplatin once every 3 weeks (one cycle) for a maximum of 6 cycles (except as noted) as follows: trastuzumab 8 mg/kg, IV, on Day 1 (Cycle 1), followed by 6 mg/kg, IV (Cycles 2 onward, administered until disease progression); cisplatin 80 mg/m\^2 IV on Day 1; and EITHER 5-FU 800 mg/m\^2 continuous IV infusion on Days 1 through 5 OR capecitabine 1000 mg/m\^2 tablets, PO BID from the evening of Day 1 through the morning of Day 15.
    id
    OG001
    title
    Trastuzumab + Fluoropyrimidine/Cisplatin (FP + H)
param Type
NUMBER
population Description
FAS
reporting Status
POSTED
time Frame
BL, Days 43, 85, and 127, and every 21 days thereafter until disease progression or the end of study, 1 year after the cut-off date for the 2nd interim efficacy analysis
title
Percentage of Participants With Clinical Benefit
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice