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NCT00069095 · OUTCOME

BOR as Assessed by the IRC According to RECIST: Superiority of Chemotherapy Plus BV Over Chemotherapy Alone

A Study of Capecitabine (Xeloda) and Bevacizumab as a First-line Therapy in Patients With Metastatic Colorectal Cancer · Source last updated 2016-10-06

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

Measure
NUMBER
Unit
Percentage of responders
Interval / dispersion
Not reported
Time frame
From baseline until disease progression/recurrence, approximately 2 years 6 months

What was measured

According to the RECIST criteria, the BOR in an individual participant was the best response recorded from the start of the treatment until disease progression/recurrence (taking the smallest measurements recorded since the baseline assessment as a reference for PD). The BOR as assessed by the IRC was determined based on tumor assessments that were made up to and including 28 days after last intake of study medication in the primary study treatment phase. Responders were defined as the percentage of participants with a complete response (CR) or partial response (PR). Superiority of the BV-containing arms was compared with the chemotherapy alone arms.

Analysis population: The ITT population included all randomized participants who provided written informed consent.

Groups in this outcome

FOLFOX-4+P/XELOX+P

Participants from the 2x2 factorial part of the study including the following groups - 1. Folfox-4+P: Participants received 2-week cycles of infused leucovorin, bolus injection fluorouracil and continuous infusion fluorouracil (given on days 1 and 2), combined with intravenous oxaliplatin and placebo control for bevacizumab (both given on day 1 every 2 weeks). 2. Xelox+P: Capecitabine was administered as an oral twice-daily outpatient intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) combined with intravenous oxaliplatin and placebo (P) control for bevacizumab (both given on day 1 every 3 weeks).

FOLFOX-4+BV/XELOX+BV

Participants from the 2x2 factorial part of the study including the following groups - 1. Folfox-4+BV: Participants who received 2-week cycles of infused leucovorin, bolus injection fluorouracil and continuous infusion fluorouracil (given on days 1 and 2), combined with intravenous oxaliplatin and intravenous bevacizumab (both given on day 1 every 2 weeks). 2. Xelox+BV: Capecitabine was administered as an oral twice-daily outpatient intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) combined with intravenous oxaliplatin and intravenous bevacizumab (both given on day 1 every 3 weeks).

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

Analysis denominator · Participants

GroupSource count
FOLFOX-4+P/XELOX+P701
FOLFOX-4+BV/XELOX+BV699

Reported measurements

Source class 1
Values in Percentage of responders · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
FOLFOX-4+P/XELOX+P37.5Not reportedNot reportedNot reportedNot reported
FOLFOX-4+BV/XELOX+BV37.5Not reportedNot reportedNot reportedNot reported

Source statistical analyses

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

  1. ci Lower Limit
    0.78
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    97.5
    ci Upper Limit
    1.28
    group Description
    Superiority of adding bevacizumab to chemotherapy was tested as follows - H0: OR(FOLFOX-4+BV/XELOX+BV)/(FOLFOX 4+P/XELOX+P) \</= 1.0 versus H1: OR(FOLFOX-4+BV/XELOX+BV)/(FOLFOX-4+P/XELOX+P) \> 1.0. The test used a two-sided significance level of 2.5%
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.9887
    param Type
    Odds Ratio (OR)
    param Value
    1.00
    statistical Method
    Chi-squared
    tested Non Inferiority
    false
Complete source fields
analyses
  1. ci Lower Limit
    0.78
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    97.5
    ci Upper Limit
    1.28
    group Description
    Superiority of adding bevacizumab to chemotherapy was tested as follows - H0: OR(FOLFOX-4+BV/XELOX+BV)/(FOLFOX 4+P/XELOX+P) \</= 1.0 versus H1: OR(FOLFOX-4+BV/XELOX+BV)/(FOLFOX-4+P/XELOX+P) \> 1.0. The test used a two-sided significance level of 2.5%
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.9887
    param Type
    Odds Ratio (OR)
    param Value
    1.00
    statistical Method
    Chi-squared
    tested Non Inferiority
    false
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        37.5
      2. group Id
        OG001
        value
        37.5
denoms
  1. counts
    1. group Id
      OG000
      value
      701
    2. group Id
      OG001
      value
      699
    units
    Participants
description
According to the RECIST criteria, the BOR in an individual participant was the best response recorded from the start of the treatment until disease progression/recurrence (taking the smallest measurements recorded since the baseline assessment as a reference for PD). The BOR as assessed by the IRC was determined based on tumor assessments that were made up to and including 28 days after last intake of study medication in the primary study treatment phase. Responders were defined as the percentage of participants with a complete response (CR) or partial response (PR). Superiority of the BV-containing arms was compared with the chemotherapy alone arms.
groups
  1. description
    Participants from the 2x2 factorial part of the study including the following groups - 1. Folfox-4+P: Participants received 2-week cycles of infused leucovorin, bolus injection fluorouracil and continuous infusion fluorouracil (given on days 1 and 2), combined with intravenous oxaliplatin and placebo control for bevacizumab (both given on day 1 every 2 weeks). 2. Xelox+P: Capecitabine was administered as an oral twice-daily outpatient intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) combined with intravenous oxaliplatin and placebo (P) control for bevacizumab (both given on day 1 every 3 weeks).
    id
    OG000
    title
    FOLFOX-4+P/XELOX+P
  2. description
    Participants from the 2x2 factorial part of the study including the following groups - 1. Folfox-4+BV: Participants who received 2-week cycles of infused leucovorin, bolus injection fluorouracil and continuous infusion fluorouracil (given on days 1 and 2), combined with intravenous oxaliplatin and intravenous bevacizumab (both given on day 1 every 2 weeks). 2. Xelox+BV: Capecitabine was administered as an oral twice-daily outpatient intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) combined with intravenous oxaliplatin and intravenous bevacizumab (both given on day 1 every 3 weeks).
    id
    OG001
    title
    FOLFOX-4+BV/XELOX+BV
param Type
NUMBER
population Description
The ITT population included all randomized participants who provided written informed consent.
reporting Status
POSTED
time Frame
From baseline until disease progression/recurrence, approximately 2 years 6 months
title
BOR as Assessed by the IRC According to RECIST: Superiority of Chemotherapy Plus BV Over Chemotherapy Alone
type
SECONDARY
unit Of Measure
Percentage of responders

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Preserved source evidence · Not medical advice