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NCT01059630 · OUTCOME

Percentage of Participants With Objective Response as Assessed by Investigator

A Study to Investigate the Efficacy and Safety of Bendamustine Compared With Bendamustine+Obinutuzumab (GA101) in Participants With Rituximab-Refractory, Indolent Non-Hodgkin's Lymphoma (GADOLIN) · Source last updated 2020-01-13

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
Baseline until PD or death, whichever occurred first (up to approximately 8.5 years)

What was measured

Objective response was defined as having CR or PR as assessed according to the modified response criteria for iNHL (Modified Cheson et al, 2007). CR: Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present.

Analysis population: ITT population. Here, number of participants analyzed signified those participants who had at least one post-baseline assessment.

Groups in this outcome

Bendamustine Alone

Participants received Bendamustine 120 mg/m\^2 IV infusion on Days 1 and 2 of each 28-day cycle for up to six cycles.

Obinutuzumab + Bendamustine

Induction phase: Participants received Bendamustine 90 mg/m\^2 IV on Days 2 and 3 of Cycle 1 and on Days 1 and 2 of Cycles 2-6 (28-day cycles) for the first 10 participants and on Days 1 and 2 of each 28-day cycle for Cycles 1-6 for remaining participants. Participants also received obinutuzumab 1000 mg IV infusion on Days 1, 8, and 15 of Cycle 1; Day 1 of Cycles 2-6. Maintenance phase: Participants with CR, PR or SD then received obinutuzumab 1000 mg IV infusion every 2 months until disease progression or for up to 2 years (whichever occurred first).

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

Analysis denominator · Participants

GroupSource count
Bendamustine Alone209
Obinutuzumab + Bendamustine204

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Bendamustine Alone83.3Not reported77.4988.05Not reported
Obinutuzumab + Bendamustine82.4Not reported76.4287.32Not reported

Source statistical analyses

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

  1. ci Lower Limit
    -8.44
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    6.64
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.7857
    param Type
    Difference in response rate
    param Value
    -0.90
    statistical Method
    Cochran-Mantel-Haenszel
Complete source fields
analyses
  1. ci Lower Limit
    -8.44
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    6.64
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.7857
    param Type
    Difference in response rate
    param Value
    -0.90
    statistical Method
    Cochran-Mantel-Haenszel
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        77.49
        upper Limit
        88.05
        value
        83.3
      2. group Id
        OG001
        lower Limit
        76.42
        upper Limit
        87.32
        value
        82.4
denoms
  1. counts
    1. group Id
      OG000
      value
      209
    2. group Id
      OG001
      value
      204
    units
    Participants
description
Objective response was defined as having CR or PR as assessed according to the modified response criteria for iNHL (Modified Cheson et al, 2007). CR: Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received Bendamustine 120 mg/m\^2 IV infusion on Days 1 and 2 of each 28-day cycle for up to six cycles.
    id
    OG000
    title
    Bendamustine Alone
  2. description
    Induction phase: Participants received Bendamustine 90 mg/m\^2 IV on Days 2 and 3 of Cycle 1 and on Days 1 and 2 of Cycles 2-6 (28-day cycles) for the first 10 participants and on Days 1 and 2 of each 28-day cycle for Cycles 1-6 for remaining participants. Participants also received obinutuzumab 1000 mg IV infusion on Days 1, 8, and 15 of Cycle 1; Day 1 of Cycles 2-6. Maintenance phase: Participants with CR, PR or SD then received obinutuzumab 1000 mg IV infusion every 2 months until disease progression or for up to 2 years (whichever occurred first).
    id
    OG001
    title
    Obinutuzumab + Bendamustine
param Type
NUMBER
population Description
ITT population. Here, number of participants analyzed signified those participants who had at least one post-baseline assessment.
reporting Status
POSTED
time Frame
Baseline until PD or death, whichever occurred first (up to approximately 8.5 years)
title
Percentage of Participants With Objective Response as Assessed by Investigator
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Independent clinical review pending · Not medical advice