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NCT01200758 · OUTCOME

Stage I and II (Pooled): Percentage of Participants With Complete Response at the End of Maintenance Treatment Assessed Using International Working Group Response Criteria for NHL

A Study of Rituximab (MabThera) Subcutaneous (SC) Versus Rituximab (MabThera) Intravenous in Participannts With Follicular Non-Hodgkin's Lymphoma · Source last updated 2018-11-27

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
Stage I and II: Baseline up to 57 days after last maintenance dose (last maintenance dose: maintenance Cy12/Study Cy20 [30 months]) (up to data cutoff of 31 Oct 2017 [up to 6 years]) (1 Cy=8 weeks)

What was measured

Complete Response comprised of CR and CRu. A participant was defined as a responder if they sustained a CR or CRu at the end of induction treatment. Response assessment was based on clinical examination and CT scans. Assessment of tumor response was performed according to the International Working Group response criteria for NHL. CR: complete disappearance of all detectable clinical and radiographic evidence of disease and disappearance of all disease-related symptoms if present before therapy; CRu: CR along with regression in lymph node mass by \>75% in SPD. The 95% CI for the response rates was estimated for one sample binomial using Pearson-Clopper.

Analysis population: ITT population; only participants who entered the maintenance phase and received at least 1 cycle of rituximab maintenance treatment from Cycle 9 to Cycle 20 were included in the analysis.

Groups in this outcome

Stage I and II: Rituximab IV + Chemotherapy (CHOP/CVP)

Eight cycles of rituximab IV infusion (375 mg/m\^2; rituximab induction) in combination with up to 8 cycles of CHOP or CVP chemotherapy (as per institutional practice) administered every 3 weeks. Participants achieving at least PR during induction, entered rituximab IV maintenance therapy (375 mg/m\^2) once every 8 weeks for 24 months.

Stage I and II: Rituximab SC + Chemotherapy (CHOP/CVP)

First cycle rituximab IV infusion (375 mg/m\^2) + 7 cycles of rituximab SC 1400 mg in combination with up to 8 cycles of CHOP or CVP chemotherapy administered every 3 weeks. Participants achieving at least PR entered rituximab SC (1400 mg) maintenance therapy once every 8 weeks for 24 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
Stage I and II: Rituximab IV + Chemotherapy (CHOP/CVP)178
Stage I and II: Rituximab SC + Chemotherapy (CHOP/CVP)172

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Stage I and II: Rituximab IV + Chemotherapy (CHOP/CVP)57.9Not reported50.365.2Not reported
Stage I and II: Rituximab SC + Chemotherapy (CHOP/CVP)50.6Not reported42.958.3Not reported

Source statistical analyses

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

  1. ci Lower Limit
    -18.0
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    3.5
    estimate Comment
    The 95% CI for the difference in response rates was estimated using the Hauck-Anderson method.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.1715
    param Type
    Difference in response rates
    param Value
    -7.28
    statistical Method
    Chi-squared
  2. ci Lower Limit
    0.52
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.22
    group Ids
    1. OG000
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    param Type
    Odds Ratio (OR)
    param Value
    0.80
Complete source fields
analyses
  1. ci Lower Limit
    -18.0
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    3.5
    estimate Comment
    The 95% CI for the difference in response rates was estimated using the Hauck-Anderson method.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    p Value
    0.1715
    param Type
    Difference in response rates
    param Value
    -7.28
    statistical Method
    Chi-squared
  2. ci Lower Limit
    0.52
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.22
    group Ids
    1. OG000
    non Inferiority Type
    SUPERIORITY_OR_OTHER
    param Type
    Odds Ratio (OR)
    param Value
    0.80
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        50.3
        upper Limit
        65.2
        value
        57.9
      2. group Id
        OG001
        lower Limit
        42.9
        upper Limit
        58.3
        value
        50.6
denoms
  1. counts
    1. group Id
      OG000
      value
      178
    2. group Id
      OG001
      value
      172
    units
    Participants
description
Complete Response comprised of CR and CRu. A participant was defined as a responder if they sustained a CR or CRu at the end of induction treatment. Response assessment was based on clinical examination and CT scans. Assessment of tumor response was performed according to the International Working Group response criteria for NHL. CR: complete disappearance of all detectable clinical and radiographic evidence of disease and disappearance of all disease-related symptoms if present before therapy; CRu: CR along with regression in lymph node mass by \>75% in SPD. The 95% CI for the response rates was estimated for one sample binomial using Pearson-Clopper.
dispersion Type
95% Confidence Interval
groups
  1. description
    Eight cycles of rituximab IV infusion (375 mg/m\^2; rituximab induction) in combination with up to 8 cycles of CHOP or CVP chemotherapy (as per institutional practice) administered every 3 weeks. Participants achieving at least PR during induction, entered rituximab IV maintenance therapy (375 mg/m\^2) once every 8 weeks for 24 months.
    id
    OG000
    title
    Stage I and II: Rituximab IV + Chemotherapy (CHOP/CVP)
  2. description
    First cycle rituximab IV infusion (375 mg/m\^2) + 7 cycles of rituximab SC 1400 mg in combination with up to 8 cycles of CHOP or CVP chemotherapy administered every 3 weeks. Participants achieving at least PR entered rituximab SC (1400 mg) maintenance therapy once every 8 weeks for 24 months.
    id
    OG001
    title
    Stage I and II: Rituximab SC + Chemotherapy (CHOP/CVP)
param Type
NUMBER
population Description
ITT population; only participants who entered the maintenance phase and received at least 1 cycle of rituximab maintenance treatment from Cycle 9 to Cycle 20 were included in the analysis.
reporting Status
POSTED
time Frame
Stage I and II: Baseline up to 57 days after last maintenance dose (last maintenance dose: maintenance Cy12/Study Cy20 [30 months]) (up to data cutoff of 31 Oct 2017 [up to 6 years]) (1 Cy=8 weeks)
title
Stage I and II (Pooled): Percentage of Participants With Complete Response at the End of Maintenance Treatment Assessed Using International Working Group Response Criteria for NHL
type
SECONDARY
unit Of Measure
percentage of participants

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