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NCT00282308 · OUTCOME

Percentage of Patients With a Positive Immune Response to Tetanus Toxoid Adsorbed Booster Vaccine

A Study to Evaluate the Effects of Rituximab on Immune Responses in Subjects With Active Rheumatoid Arthritis Receiving Background Methotrexate · Source last updated 2017-08-10

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

Measure
NUMBER
Unit
Percentage of patients
Interval / dispersion
Not reported
Time frame
Week 24 to Week 28 for Group A and Day 1 to Week 4 for Group B

What was measured

The immune response to tetanus toxoid adsorbed booster vaccine was measured in serum samples immediately prior to and 4 weeks after vaccine administration. The tetanus antibody test was an ELISA that used tetanus toxoid as a capturing reagent and alkaline phosphatase-conjugated anti-human IgG (γ) for detection. For patients with pre-vaccination tetanus antibody titers \< 0.1 IU/mL, a positive immune response was defined as an antibody titer ≥ 0.2 IU/mL. For patients with pre-vaccination tetanus antibody titers ≥ 0.1 IU/mL, a positive immune response to the booster immunization was defined as a 4-fold increase in antibody titer.

Analysis population: Immune response per-protocol population: Group A - All patients randomized to Group A who received any rituximab infusion and any vaccine and had pre-vaccination and 4-week post-vaccination blood samples. Group B - All patients randomized to Group B who received any vaccine and had pre-vaccination and 4-week post-vaccination blood samples.

Groups in this outcome

Rituximab + Methotrexate (Group A)

Patients received 2 intravenous infusions of rituximab 1000 mg, 14 days apart + methotrexate 10-25 mg/wk orally or subcutaneously during the Treatment Period.

Methotrexate (Group B)

Patients received methotrexate 10-25 mg/wk orally or subcutaneously during the Treatment Period.

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 + Methotrexate (Group A)64
Methotrexate (Group B)26

Reported measurements

Source class 1
Values in Percentage of patients · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Rituximab + Methotrexate (Group A)39.1Not reportedNot reportedNot reportedNot reported
Methotrexate (Group B)42.3Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        39.1
      2. group Id
        OG001
        value
        42.3
denoms
  1. counts
    1. group Id
      OG000
      value
      64
    2. group Id
      OG001
      value
      26
    units
    Participants
description
The immune response to tetanus toxoid adsorbed booster vaccine was measured in serum samples immediately prior to and 4 weeks after vaccine administration. The tetanus antibody test was an ELISA that used tetanus toxoid as a capturing reagent and alkaline phosphatase-conjugated anti-human IgG (γ) for detection. For patients with pre-vaccination tetanus antibody titers \< 0.1 IU/mL, a positive immune response was defined as an antibody titer ≥ 0.2 IU/mL. For patients with pre-vaccination tetanus antibody titers ≥ 0.1 IU/mL, a positive immune response to the booster immunization was defined as a 4-fold increase in antibody titer.
groups
  1. description
    Patients received 2 intravenous infusions of rituximab 1000 mg, 14 days apart + methotrexate 10-25 mg/wk orally or subcutaneously during the Treatment Period.
    id
    OG000
    title
    Rituximab + Methotrexate (Group A)
  2. description
    Patients received methotrexate 10-25 mg/wk orally or subcutaneously during the Treatment Period.
    id
    OG001
    title
    Methotrexate (Group B)
param Type
NUMBER
population Description
Immune response per-protocol population: Group A - All patients randomized to Group A who received any rituximab infusion and any vaccine and had pre-vaccination and 4-week post-vaccination blood samples. Group B - All patients randomized to Group B who received any vaccine and had pre-vaccination and 4-week post-vaccination blood samples.
reporting Status
POSTED
time Frame
Week 24 to Week 28 for Group A and Day 1 to Week 4 for Group B
title
Percentage of Patients With a Positive Immune Response to Tetanus Toxoid Adsorbed Booster Vaccine
type
PRIMARY
unit Of Measure
Percentage of patients

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice