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NCT00422383 · OUTCOME

Percentage of Participants With Peripheral CD19+ B Cell Counts Above BL or the Lower Limit of Normal (LLN)

A Study of Retreatment With MabThera (Rituximab) in Combination With Methotrexate in Patients With Rheumatoid Arthritis (RA) · Source last updated 2015-05-04

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
Not reported
Time frame
BL, Days 1 and 15, Weeks 4, 8, 16, 24, 28, 32, 40, and 48

What was measured

Surface expression of CD19 was assessed by FACS analysis as a marker of absolute B lymphocyte count. The LLN was defined as \< 80 cells/µL.

Analysis population: ITT-M2 population, n = number of participants assessed for the given parameter at the specified timepoint.

Groups in this outcome

Rituximab Low Dose + Methotrexate

Participants received rituximab, 0.5 g, IV, on Days 1, 15, 168, and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose.

Rituximab Escalated Dose + Methotrexate

Participants received rituximab, 0.5 g, IV, on Days 1 and 15 and 1.0 g, IV, on Days 168 and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose.

Rituximab High Dose + Methotrexate

Participants received rituximab, 1.0 g, IV, on Days 1, 15, 168, and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose.

Rituximab/Placebo + Methotrexate

Participants received rituximab, 1.0 g, IV, on Days 1 and 15, and a placebo, IV, on Days 168 and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose. This treatment group was not part of the planned analysis and was not analyzed for all outcomes measures since they did not receive the planned treatment.

Rituximab Decreased Dose + Methotrexate

Participants received rituximab, 1.0 g, IV, on Days 1 and 15 and 0.5 g, IV, on Days 168 and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose. This treatment group was not part of the planned analysis and was not analyzed for all outcomes measures since they did not receive the planned treatment.

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

Analysis denominator · Participants

GroupSource count
Rituximab Low Dose + Methotrexate127
Rituximab Escalated Dose + Methotrexate114
Rituximab High Dose + Methotrexate91
Rituximab/Placebo + Methotrexate6
Rituximab Decreased Dose + Methotrexate24

Reported measurements

Day 1 Postdose (n=118,109,85,5,23)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate0.8Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate2.4Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate8.7Not reportedNot reportedNot reportedNot reported
Day 15 Predose (n=127,114,87,5,24)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Day 15 Postdose (n=121,108,89,6,23)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Wk 4 (n=127,111,87,6,24)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Wk 8 (n=126,111,90,6,23)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Wk 16 (n=122,112,91,6,23)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate0.8Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate0.9Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Wk 24 (n=114,107,87,4,24)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate7.0Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate6.5Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate4.6Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate12.5Not reportedNot reportedNot reportedNot reported
Wk 28 (n=121,103,86,6,25)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate0.8Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate2.3Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Wk 32 (n=122,107,88,5,24)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate2.5Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate20.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Wk 40 (n=118,103,84,4,23)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate0.8Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate1.0Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate50.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate0.0Not reportedNot reportedNot reportedNot reported
Wk 48 (n=118,105,89,4,22)
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate5.9Not reportedNot reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate1.9Not reportedNot reportedNot reportedNot reported
Rituximab High Dose + Methotrexate5.6Not reportedNot reportedNot reportedNot reported
Rituximab/Placebo + Methotrexate50.0Not reportedNot reportedNot reportedNot reported
Rituximab Decreased Dose + Methotrexate13.6Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        0.8
      2. group Id
        OG001
        value
        0.0
      3. group Id
        OG002
        value
        2.4
      4. group Id
        OG003
        value
        0.0
      5. group Id
        OG004
        value
        8.7
    title
    Day 1 Postdose (n=118,109,85,5,23)
  2. categories
    1. measurements
      1. group Id
        OG000
        value
        0.0
      2. group Id
        OG001
        value
        0.0
      3. group Id
        OG002
        value
        0.0
      4. group Id
        OG003
        value
        0.0
      5. group Id
        OG004
        value
        0.0
    title
    Day 15 Predose (n=127,114,87,5,24)
  3. categories
    1. measurements
      1. group Id
        OG000
        value
        0.0
      2. group Id
        OG001
        value
        0.0
      3. group Id
        OG002
        value
        0.0
      4. group Id
        OG003
        value
        0.0
      5. group Id
        OG004
        value
        0.0
    title
    Day 15 Postdose (n=121,108,89,6,23)
  4. categories
    1. measurements
      1. group Id
        OG000
        value
        0.0
      2. group Id
        OG001
        value
        0.0
      3. group Id
        OG002
        value
        0.0
      4. group Id
        OG003
        value
        0.0
      5. group Id
        OG004
        value
        0.0
    title
    Wk 4 (n=127,111,87,6,24)
  5. categories
    1. measurements
      1. group Id
        OG000
        value
        0.0
      2. group Id
        OG001
        value
        0.0
      3. group Id
        OG002
        value
        0.0
      4. group Id
        OG003
        value
        0.0
      5. group Id
        OG004
        value
        0.0
    title
    Wk 8 (n=126,111,90,6,23)
  6. categories
    1. measurements
      1. group Id
        OG000
        value
        0.8
      2. group Id
        OG001
        value
        0.9
      3. group Id
        OG002
        value
        0.0
      4. group Id
        OG003
        value
        0.0
      5. group Id
        OG004
        value
        0.0
    title
    Wk 16 (n=122,112,91,6,23)
  7. categories
    1. measurements
      1. group Id
        OG000
        value
        7.0
      2. group Id
        OG001
        value
        6.5
      3. group Id
        OG002
        value
        4.6
      4. group Id
        OG003
        value
        0.0
      5. group Id
        OG004
        value
        12.5
    title
    Wk 24 (n=114,107,87,4,24)
  8. categories
    1. measurements
      1. group Id
        OG000
        value
        0.8
      2. group Id
        OG001
        value
        0.0
      3. group Id
        OG002
        value
        2.3
      4. group Id
        OG003
        value
        0.0
      5. group Id
        OG004
        value
        0.0
    title
    Wk 28 (n=121,103,86,6,25)
  9. categories
    1. measurements
      1. group Id
        OG000
        value
        2.5
      2. group Id
        OG001
        value
        0.0
      3. group Id
        OG002
        value
        0.0
      4. group Id
        OG003
        value
        20.0
      5. group Id
        OG004
        value
        0.0
    title
    Wk 32 (n=122,107,88,5,24)
  10. categories
    1. measurements
      1. group Id
        OG000
        value
        0.8
      2. group Id
        OG001
        value
        1.0
      3. group Id
        OG002
        value
        0.0
      4. group Id
        OG003
        value
        50.0
      5. group Id
        OG004
        value
        0.0
    title
    Wk 40 (n=118,103,84,4,23)
  11. categories
    1. measurements
      1. group Id
        OG000
        value
        5.9
      2. group Id
        OG001
        value
        1.9
      3. group Id
        OG002
        value
        5.6
      4. group Id
        OG003
        value
        50.0
      5. group Id
        OG004
        value
        13.6
    title
    Wk 48 (n=118,105,89,4,22)
denoms
  1. counts
    1. group Id
      OG000
      value
      127
    2. group Id
      OG001
      value
      114
    3. group Id
      OG002
      value
      91
    4. group Id
      OG003
      value
      6
    5. group Id
      OG004
      value
      24
    units
    Participants
description
Surface expression of CD19 was assessed by FACS analysis as a marker of absolute B lymphocyte count. The LLN was defined as \< 80 cells/µL.
groups
  1. description
    Participants received rituximab, 0.5 g, IV, on Days 1, 15, 168, and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose.
    id
    OG000
    title
    Rituximab Low Dose + Methotrexate
  2. description
    Participants received rituximab, 0.5 g, IV, on Days 1 and 15 and 1.0 g, IV, on Days 168 and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose.
    id
    OG001
    title
    Rituximab Escalated Dose + Methotrexate
  3. description
    Participants received rituximab, 1.0 g, IV, on Days 1, 15, 168, and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose.
    id
    OG002
    title
    Rituximab High Dose + Methotrexate
  4. description
    Participants received rituximab, 1.0 g, IV, on Days 1 and 15, and a placebo, IV, on Days 168 and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose. This treatment group was not part of the planned analysis and was not analyzed for all outcomes measures since they did not receive the planned treatment.
    id
    OG003
    title
    Rituximab/Placebo + Methotrexate
  5. description
    Participants received rituximab, 1.0 g, IV, on Days 1 and 15 and 0.5 g, IV, on Days 168 and 182. Participants also received methylprednisolone 100 mg, IV, by slow infusion, which was completed at least 30 minutes prior to each infusion of rituximab Days 1, 15, 168, and 182. Participants also received methotrexate 10-25 mg/mL, PO or parenterally, as prescribed by the treating physician and in accordance with the local label. Participants also received a stable dose of folate ≥ 5 mg/week given either as a single dose or as a divided weekly dose. This treatment group was not part of the planned analysis and was not analyzed for all outcomes measures since they did not receive the planned treatment.
    id
    OG004
    title
    Rituximab Decreased Dose + Methotrexate
param Type
NUMBER
population Description
ITT-M2 population, n = number of participants assessed for the given parameter at the specified timepoint.
reporting Status
POSTED
time Frame
BL, Days 1 and 15, Weeks 4, 8, 16, 24, 28, 32, 40, and 48
title
Percentage of Participants With Peripheral CD19+ B Cell Counts Above BL or the Lower Limit of Normal (LLN)
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice