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NCT00422383 · OUTCOME

Peripheral CD8+ T Cell Count in Cells/µL

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
MEAN
Unit
cells/µL
Interval / dispersion
Standard Deviation
Time frame
BL, Day 15, Weeks 4, 8, 16, 24, 28, 32, 40, and 48

What was measured

Surface expression of CD8 was assessed by FACS analysis as a marker of cytotoxic T lymphocyte count. The normal range of CD8+ T cells was defined as 220-1129 cells/µL.

Analysis population: SAP, 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.

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

Reported measurements

BL Predose (n=127,110,90)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate361.8231.86Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate352.6228.43Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate364.9181.22Not reportedNot reportedNot reported
BL Postdose (n=118,109,85)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate106.870.64Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate118.6104.11Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate98.170.68Not reportedNot reportedNot reported
Day 15 Predose (n=127,114,87)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate358.8196.37Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate360.9232.26Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate359.7174.12Not reportedNot reportedNot reported
Day 15 Postdose (n=121,108,89)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate134.079.79Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate152.6130.11Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate145.695.64Not reportedNot reportedNot reported
Wk 4 (n=127,111,87)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate348.4202.67Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate330.7197.94Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate341.9164.61Not reportedNot reportedNot reported
Wk 8 (n=126,111,90)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate357.3199.77Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate367.9239.39Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate342.3159.31Not reportedNot reportedNot reported
Wk 16 (n=122,112,91)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate365.1220.35Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate377.8227.32Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate344.2169.67Not reportedNot reportedNot reported
Wk 24 (n=113,107,85)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate359.1189.24Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate382.0241.73Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate363.3184.04Not reportedNot reportedNot reported
Wk 28 (n=120,101,86)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate359.9208.91Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate353.7221.13Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate357.3182.90Not reportedNot reportedNot reported
Wk 32 (n=122,107,88)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate372.3213.84Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate372.7211.86Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate359.9169.32Not reportedNot reportedNot reported
Wk 40 (n=118,103,84)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate367.8215.21Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate386.7260.49Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate356.7166.19Not reportedNot reportedNot reported
Wk 48 (n=114,103,83)
Values in cells/µL · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Rituximab Low Dose + Methotrexate365.9218.78Not reportedNot reportedNot reported
Rituximab Escalated Dose + Methotrexate357.8210.51Not reportedNot reportedNot reported
Rituximab High Dose + Methotrexate355.5178.67Not reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        spread
        231.86
        value
        361.8
      2. group Id
        OG001
        spread
        228.43
        value
        352.6
      3. group Id
        OG002
        spread
        181.22
        value
        364.9
    title
    BL Predose (n=127,110,90)
  2. categories
    1. measurements
      1. group Id
        OG000
        spread
        70.64
        value
        106.8
      2. group Id
        OG001
        spread
        104.11
        value
        118.6
      3. group Id
        OG002
        spread
        70.68
        value
        98.1
    title
    BL Postdose (n=118,109,85)
  3. categories
    1. measurements
      1. group Id
        OG000
        spread
        196.37
        value
        358.8
      2. group Id
        OG001
        spread
        232.26
        value
        360.9
      3. group Id
        OG002
        spread
        174.12
        value
        359.7
    title
    Day 15 Predose (n=127,114,87)
  4. categories
    1. measurements
      1. group Id
        OG000
        spread
        79.79
        value
        134.0
      2. group Id
        OG001
        spread
        130.11
        value
        152.6
      3. group Id
        OG002
        spread
        95.64
        value
        145.6
    title
    Day 15 Postdose (n=121,108,89)
  5. categories
    1. measurements
      1. group Id
        OG000
        spread
        202.67
        value
        348.4
      2. group Id
        OG001
        spread
        197.94
        value
        330.7
      3. group Id
        OG002
        spread
        164.61
        value
        341.9
    title
    Wk 4 (n=127,111,87)
  6. categories
    1. measurements
      1. group Id
        OG000
        spread
        199.77
        value
        357.3
      2. group Id
        OG001
        spread
        239.39
        value
        367.9
      3. group Id
        OG002
        spread
        159.31
        value
        342.3
    title
    Wk 8 (n=126,111,90)
  7. categories
    1. measurements
      1. group Id
        OG000
        spread
        220.35
        value
        365.1
      2. group Id
        OG001
        spread
        227.32
        value
        377.8
      3. group Id
        OG002
        spread
        169.67
        value
        344.2
    title
    Wk 16 (n=122,112,91)
  8. categories
    1. measurements
      1. group Id
        OG000
        spread
        189.24
        value
        359.1
      2. group Id
        OG001
        spread
        241.73
        value
        382.0
      3. group Id
        OG002
        spread
        184.04
        value
        363.3
    title
    Wk 24 (n=113,107,85)
  9. categories
    1. measurements
      1. group Id
        OG000
        spread
        208.91
        value
        359.9
      2. group Id
        OG001
        spread
        221.13
        value
        353.7
      3. group Id
        OG002
        spread
        182.90
        value
        357.3
    title
    Wk 28 (n=120,101,86)
  10. categories
    1. measurements
      1. group Id
        OG000
        spread
        213.84
        value
        372.3
      2. group Id
        OG001
        spread
        211.86
        value
        372.7
      3. group Id
        OG002
        spread
        169.32
        value
        359.9
    title
    Wk 32 (n=122,107,88)
  11. categories
    1. measurements
      1. group Id
        OG000
        spread
        215.21
        value
        367.8
      2. group Id
        OG001
        spread
        260.49
        value
        386.7
      3. group Id
        OG002
        spread
        166.19
        value
        356.7
    title
    Wk 40 (n=118,103,84)
  12. categories
    1. measurements
      1. group Id
        OG000
        spread
        218.78
        value
        365.9
      2. group Id
        OG001
        spread
        210.51
        value
        357.8
      3. group Id
        OG002
        spread
        178.67
        value
        355.5
    title
    Wk 48 (n=114,103,83)
denoms
  1. counts
    1. group Id
      OG000
      value
      127
    2. group Id
      OG001
      value
      114
    3. group Id
      OG002
      value
      91
    units
    Participants
description
Surface expression of CD8 was assessed by FACS analysis as a marker of cytotoxic T lymphocyte count. The normal range of CD8+ T cells was defined as 220-1129 cells/µL.
dispersion Type
Standard Deviation
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
param Type
MEAN
population Description
SAP, n = number of participants assessed for the given parameter at the specified timepoint.
reporting Status
POSTED
time Frame
BL, Day 15, Weeks 4, 8, 16, 24, 28, 32, 40, and 48
title
Peripheral CD8+ T Cell Count in Cells/µL
type
SECONDARY
unit Of Measure
cells/µL

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Preserved source evidence · Not medical advice