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NCT00769704 · OUTCOME

Response Interval

Efficacy and Safety Study of Talimogene Laherparepvec Compared to Granulocyte Macrophage Colony Stimulating Factor (GM-CSF) in Melanoma · Source last updated 2016-07-13

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

Measure
MEDIAN
Unit
months
Interval / dispersion
95% Confidence Interval
Time frame
From randomization until the data cut-off date of 21 December 2012; median follow-up time was 20 months.

What was measured

Response interval is defined as the interval between the date of randomization and the date of the last documented evidence of response (CR or PR as assessed by the Investigator) prior to any new anti-cancer therapy. Response Interval post response onset was censored if a patient was still in response at the last observation.

Analysis population: Participants with an objective response (CR or PR) per Investigator assessment.

Groups in this outcome

GM-CSF

GM-CSF was administered at a dose of 125 μg/m²/day subcutaneously for 14 days in 28-day cycles for 24 weeks. Participants could continue treatment until clinically relevant disease progression, intolerability, withdrawal of consent, complete remission, or lack of response by 12 months, for a maximum of 18 months.

Talimogene Laherparepvec

Participants received talimogene laherparepvec on Days 1 and 15 of each 28-day cycle for 24 weeks. The initial dose was at a concentration of 10⁶ PFU/mL, injected into 1 or more skin, subcutaneous or nodal tumors. Subsequent doses began at least 3 weeks after the first dose and consisted of talimogene laherparepvec at a concentration of 10⁸ PFU/mL. Participants could continue treatment until clinically relevant disease progression, intolerability, withdrawal of consent, complete remission, lack of response by 12 months, or disappearance of all injectable lesions, for a maximum of 18 months.

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

Analysis denominator · Participants

GroupSource count
GM-CSF9
Talimogene Laherparepvec91

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
GM-CSF7.5Not reported1.9NACould not be estimated due to the low number of events
Talimogene LaherparepvecNANot reportedNANACould not be estimated due to the low number of events

Source statistical analyses

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

  1. ci Lower Limit
    0.13
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.73
    estimate Comment
    The hazard ratio was obtained from the unadjusted Cox Proportional Hazard Model. A hazard ratio \< 1.0 indicates a longer response interval for talimogene laherparepvec relative to GM-CSF.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.0050
    p Value Comment
    Descriptive
    param Type
    Hazard Ratio (HR)
    param Value
    0.30
    statistical Method
    Log Rank
    tested Non Inferiority
    false
Complete source fields
analyses
  1. ci Lower Limit
    0.13
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.73
    estimate Comment
    The hazard ratio was obtained from the unadjusted Cox Proportional Hazard Model. A hazard ratio \< 1.0 indicates a longer response interval for talimogene laherparepvec relative to GM-CSF.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.0050
    p Value Comment
    Descriptive
    param Type
    Hazard Ratio (HR)
    param Value
    0.30
    statistical Method
    Log Rank
    tested Non Inferiority
    false
classes
  1. categories
    1. measurements
      1. comment
        Could not be estimated due to the low number of events
        group Id
        OG000
        lower Limit
        1.9
        upper Limit
        NA
        value
        7.5
      2. comment
        Could not be estimated due to the low number of events
        group Id
        OG001
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
denoms
  1. counts
    1. group Id
      OG000
      value
      9
    2. group Id
      OG001
      value
      91
    units
    Participants
description
Response interval is defined as the interval between the date of randomization and the date of the last documented evidence of response (CR or PR as assessed by the Investigator) prior to any new anti-cancer therapy. Response Interval post response onset was censored if a patient was still in response at the last observation.
dispersion Type
95% Confidence Interval
groups
  1. description
    GM-CSF was administered at a dose of 125 μg/m²/day subcutaneously for 14 days in 28-day cycles for 24 weeks. Participants could continue treatment until clinically relevant disease progression, intolerability, withdrawal of consent, complete remission, or lack of response by 12 months, for a maximum of 18 months.
    id
    OG000
    title
    GM-CSF
  2. description
    Participants received talimogene laherparepvec on Days 1 and 15 of each 28-day cycle for 24 weeks. The initial dose was at a concentration of 10⁶ PFU/mL, injected into 1 or more skin, subcutaneous or nodal tumors. Subsequent doses began at least 3 weeks after the first dose and consisted of talimogene laherparepvec at a concentration of 10⁸ PFU/mL. Participants could continue treatment until clinically relevant disease progression, intolerability, withdrawal of consent, complete remission, lack of response by 12 months, or disappearance of all injectable lesions, for a maximum of 18 months.
    id
    OG001
    title
    Talimogene Laherparepvec
param Type
MEDIAN
population Description
Participants with an objective response (CR or PR) per Investigator assessment.
reporting Status
POSTED
time Frame
From randomization until the data cut-off date of 21 December 2012; median follow-up time was 20 months.
title
Response Interval
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice