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NCT00299104 · OUTCOME

Change From Baseline in the Disease Activity Score 28 Joint Count- Erythrocyte Sedimentation Rate (DAS28-ESR) at Week 52

A Study to Evaluate Rituximab in Combination With Methotrexate in Methotrexate-Naive Patients With Active Rheumatoid Arthritis · Source last updated 2017-07-28

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

Measure
MEAN
Unit
Score on a scale
Interval / dispersion
Standard Deviation
Time frame
Baseline, Week 52

What was measured

DAS28-ESR is calculated from the following formula: (0.56 \* TJC) + (0.28 \* SJC) + (0.70 \* ln ESR) + (0.014 \* GH) TJC = tender joint count, based on 28 joints SJC = swollen joint count, based on 28 joints ESR = erythrocyte sedimentation rate in mm/h GH = patient's global assessment of disease activity A DAS28-ESR score of 5.1 or above is considered to indicate high disease activity. Patients can also be defined as having low disease activity (DAS28-ESR ≤ 3.2) or remission (DAS28-ESR \< 2.6).

Analysis population: Participants from the Intent to treat (ITT) population includes all randomized participants who received at least one infusion who had data available for analyses. Last observation carried forward.

Groups in this outcome

Placebo + Methotrexate

Placebo intravenously on Days 1 and 15 + a background of methotrexate orally at a dose of 7.5 mg escalating by 2.5 mg a week every 1-2 weeks to achieve: 15 mg per week by Week 4 and 20 mg per week by Week 8. From Week 104 participants were eligible to receive Rituximab 2 X 0.5 g or Rituximab 2 X 1.0 g every 24 weeks.

Rituximab (0.5 g x 2) + Methotrexate

Rituximab intravenously at a dose of 0.5 g on Days 1 and 15 + a background of methotrexate orally at a dose of 7.5 mg escalating by 2.5 mg a week every 1-2 weeks to achieve: 15 mg per week by Week 4 and 20 mg per week by Week 8. Subsequent Rituximab treatment courses were given at 24 week intervals for 5 years provided the Disease Activity Score 28 Joint Count- Erythrocyte Sedimentation Rate (DAS-ESR) result was ≥2.6

Rituximab (1.0 g x 2) + Methotrexate

Rituximab intravenously at a dose of 1.0 g on Days 1 and 15 + a background of methotrexate orally at a dose of 7.5 mg escalating by 2.5 mg a week every 1-2 weeks to achieve: 15 mg per week by Week 4 and 20 mg per week by Week 8. Subsequent Rituximab treatment courses were given at 24 week intervals for 5 years provided the Disease Activity Score 28 Joint Count- Erythrocyte Sedimentation Rate (DAS-ESR) result was ≥2.6

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

Analysis denominator · Participants

GroupSource count
Placebo + Methotrexate244
Rituximab (0.5 g x 2) + Methotrexate247
Rituximab (1.0 g x 2) + Methotrexate248

Reported measurements

Source class 1
Values in Score on a scale · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Placebo + Methotrexate-2.331.691Not reportedNot reportedNot reported
Rituximab (0.5 g x 2) + Methotrexate-3.351.663Not reportedNot reportedNot reported
Rituximab (1.0 g x 2) + Methotrexate-3.461.640Not reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        spread
        1.691
        value
        -2.33
      2. group Id
        OG001
        spread
        1.663
        value
        -3.35
      3. group Id
        OG002
        spread
        1.640
        value
        -3.46
denoms
  1. counts
    1. group Id
      OG000
      value
      244
    2. group Id
      OG001
      value
      247
    3. group Id
      OG002
      value
      248
    units
    Participants
description
DAS28-ESR is calculated from the following formula: (0.56 \* TJC) + (0.28 \* SJC) + (0.70 \* ln ESR) + (0.014 \* GH) TJC = tender joint count, based on 28 joints SJC = swollen joint count, based on 28 joints ESR = erythrocyte sedimentation rate in mm/h GH = patient's global assessment of disease activity A DAS28-ESR score of 5.1 or above is considered to indicate high disease activity. Patients can also be defined as having low disease activity (DAS28-ESR ≤ 3.2) or remission (DAS28-ESR \< 2.6).
dispersion Type
Standard Deviation
groups
  1. description
    Placebo intravenously on Days 1 and 15 + a background of methotrexate orally at a dose of 7.5 mg escalating by 2.5 mg a week every 1-2 weeks to achieve: 15 mg per week by Week 4 and 20 mg per week by Week 8. From Week 104 participants were eligible to receive Rituximab 2 X 0.5 g or Rituximab 2 X 1.0 g every 24 weeks.
    id
    OG000
    title
    Placebo + Methotrexate
  2. description
    Rituximab intravenously at a dose of 0.5 g on Days 1 and 15 + a background of methotrexate orally at a dose of 7.5 mg escalating by 2.5 mg a week every 1-2 weeks to achieve: 15 mg per week by Week 4 and 20 mg per week by Week 8. Subsequent Rituximab treatment courses were given at 24 week intervals for 5 years provided the Disease Activity Score 28 Joint Count- Erythrocyte Sedimentation Rate (DAS-ESR) result was ≥2.6
    id
    OG001
    title
    Rituximab (0.5 g x 2) + Methotrexate
  3. description
    Rituximab intravenously at a dose of 1.0 g on Days 1 and 15 + a background of methotrexate orally at a dose of 7.5 mg escalating by 2.5 mg a week every 1-2 weeks to achieve: 15 mg per week by Week 4 and 20 mg per week by Week 8. Subsequent Rituximab treatment courses were given at 24 week intervals for 5 years provided the Disease Activity Score 28 Joint Count- Erythrocyte Sedimentation Rate (DAS-ESR) result was ≥2.6
    id
    OG002
    title
    Rituximab (1.0 g x 2) + Methotrexate
param Type
MEAN
population Description
Participants from the Intent to treat (ITT) population includes all randomized participants who received at least one infusion who had data available for analyses. Last observation carried forward.
reporting Status
POSTED
time Frame
Baseline, Week 52
title
Change From Baseline in the Disease Activity Score 28 Joint Count- Erythrocyte Sedimentation Rate (DAS28-ESR) at Week 52
type
SECONDARY
unit Of Measure
Score on a scale

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Preserved source evidence · Not medical advice