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NCT00738530 · OUTCOME

Time to Progression (TTP) According to Modified Response Evaluation Criteria in Solid Tumors (mRECIST)

A Study of Avastin (Bevacizumab) Added to Interferon Alfa-2a (Roferon) Therapy in Patients With Metastatic Renal Cell Cancer With Nephrectomy · Source last updated 2016-06-23

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
Baseline until disease progression or death, whichever occurred first (assessed at baseline, Weeks 8, 16, 24, 32, 44, 56, 68 thereafter every 12 weeks up to week 104 and then every 6 months up to 4.25 years)

What was measured

Time to progression was defined as the time between date of randomization and date of documented progression. Tumor assessment was performed using mRECIST. Progressive disease was defined as at least a 20% increase in the sum of the longest diameter of target lesions, taking as reference the smallest sum longest diameter recorded since treatment started or the appearance of one or more new lesions and/or the unequivocal progression of existing non-target lesions. Participants without an event (including participants who died before progressive disease) were censored at the date of last follow-up for progression or date of last available tumor measurement if no follow-up assessment for progression was performed. Participants who were randomized but not exposed to study drug and had no further follow-up were censored on the day of randomization.

Analysis population: ITT population included all participants randomized into the study.

Groups in this outcome

Bevacizumab + IFN-Alfa-2A

Bevacizumab infusions were administered every two weeks at a dose of 10 mg/kg for 52 weeks or until disease progression or unacceptable toxicity. IFN-Alfa-2A was administered 3 times per week as a subcutaneous injection at a dose of 9 MIU for 52 weeks or until disease progression or major toxicity.

Placebo + IFN-Alfa-2A

Placebo matched with Bevacizumab infusions were administered every two weeks for 52 weeks or until disease progression or unacceptable toxicity. IFN-Alfa-2A was administered 3 times per week as a subcutaneous injection at a dose of 9 MIU for 52 weeks or until disease progression or major toxicity.

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

Analysis denominator · Participants

GroupSource count
Bevacizumab + IFN-Alfa-2A327
Placebo + IFN-Alfa-2A322

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Bevacizumab + IFN-Alfa-2A10.2Not reported7.911.6Not reported
Placebo + IFN-Alfa-2A5.5Not reported4.35.8Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.62
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.86
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.0002
    param Type
    Hazard Ratio (HR)
    param Value
    0.73
    statistical Method
    Log Rank
    tested Non Inferiority
    false
Complete source fields
analyses
  1. ci Lower Limit
    0.62
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.86
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.0002
    param Type
    Hazard Ratio (HR)
    param Value
    0.73
    statistical Method
    Log Rank
    tested Non Inferiority
    false
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        7.9
        upper Limit
        11.6
        value
        10.2
      2. group Id
        OG001
        lower Limit
        4.3
        upper Limit
        5.8
        value
        5.5
denoms
  1. counts
    1. group Id
      OG000
      value
      327
    2. group Id
      OG001
      value
      322
    units
    Participants
description
Time to progression was defined as the time between date of randomization and date of documented progression. Tumor assessment was performed using mRECIST. Progressive disease was defined as at least a 20% increase in the sum of the longest diameter of target lesions, taking as reference the smallest sum longest diameter recorded since treatment started or the appearance of one or more new lesions and/or the unequivocal progression of existing non-target lesions. Participants without an event (including participants who died before progressive disease) were censored at the date of last follow-up for progression or date of last available tumor measurement if no follow-up assessment for progression was performed. Participants who were randomized but not exposed to study drug and had no further follow-up were censored on the day of randomization.
dispersion Type
95% Confidence Interval
groups
  1. description
    Bevacizumab infusions were administered every two weeks at a dose of 10 mg/kg for 52 weeks or until disease progression or unacceptable toxicity. IFN-Alfa-2A was administered 3 times per week as a subcutaneous injection at a dose of 9 MIU for 52 weeks or until disease progression or major toxicity.
    id
    OG000
    title
    Bevacizumab + IFN-Alfa-2A
  2. description
    Placebo matched with Bevacizumab infusions were administered every two weeks for 52 weeks or until disease progression or unacceptable toxicity. IFN-Alfa-2A was administered 3 times per week as a subcutaneous injection at a dose of 9 MIU for 52 weeks or until disease progression or major toxicity.
    id
    OG001
    title
    Placebo + IFN-Alfa-2A
param Type
MEDIAN
population Description
ITT population included all participants randomized into the study.
reporting Status
POSTED
time Frame
Baseline until disease progression or death, whichever occurred first (assessed at baseline, Weeks 8, 16, 24, 32, 44, 56, 68 thereafter every 12 weeks up to week 104 and then every 6 months up to 4.25 years)
title
Time to Progression (TTP) According to Modified Response Evaluation Criteria in Solid Tumors (mRECIST)
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice