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NCT01080131 · OUTCOME

Flare Rate Per Year

Canakinumab in the Treatment of Acute Gout Flares and Prevention of New Flares in Patients Unable to Use Non-steroidal Anti-inflammatory Drugs (NSAIDs) and/or Colchicines Including a 12 Week Extension and a 1 Year Open-label Extension Study. · Source last updated 2014-01-30

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

Measure
MEAN
Unit
flares per patient per year
Interval / dispersion
95% Confidence Interval
Time frame
From randomization to the end of the second extension period (72 weeks).

What was measured

Flare rate was calculated as the number of new flares over the period of observation in years. Flare rate was calculated using only those new flares before switching to canakinumab. Participants met the definition of new flare if they had: * Flare in joint, not a previously affected joint (at baseline or during study) * Flare in joint previously affected (at baseline or during study) after previous flare in joint has resolved completely. Participants did not meet criterion of having new gout flare if: • Increasing/renewed gout pain in an affected joint before the flare has resolved completely. Flare rates were estimated from a negative binomial model with body mass index at baseline as a covariate.

Analysis population: The Full Analysis Set (FAS) consisted of all patients as randomized in the core study who had taken at least one dose of study drug.

Groups in this outcome

Canakinumab 150 mg

Participants received 1 subcutaneous (sc) injection of canakinumab 150 mg and 1 intramuscular (im) injection of placebo to triamcinolone acetonide on Day 1. Participants could receive a re-dose of study drug on demand upon the occurrence of new flares, but re-dosing could not occur until 14 days had elapsed after the previous dose. In the first extension study participants completing the 12 week core study could continue to be treated on demand with the same treatment for another 12 weeks for any new gout flare. In the second extension study participants were to receive open-label on demand treatment with canakinumab 150 mg sc for any new flare for an additional year, for a total duration of 18 months.

Triamcinolone Acetonide 40 mg

Participants received 1 intramuscular injection of triamcinolone acetonide 40 mg and 1 sc injection of placebo to canakinumab on Day 1. Participants could receive a re-dose of study drug on demand upon the occurrence of new flares, but re-dosing could not occur until 14 days had elapsed after the previous dose. In the first extension study participants completing the 12 week core study could continue to be treated on demand with the same treatment for another 12 weeks for any new gout flare. In the second extension study participants were to switch to open-label on demand treatment with canakinumab 150 mg sc for any new flare for an additional year. Triamcinolone acetonide was not to be administered in the second extension study.

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

Analysis denominator · Participants

GroupSource count
Canakinumab 150 mg112
Triamcinolone Acetonide 40 mg114

Reported measurements

Source class 1
Values in flares per patient per year · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Canakinumab 150 mg1.18Not reported0.961.45Not reported
Triamcinolone Acetonide 40 mg2.02Not reported1.652.47Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.96
        upper Limit
        1.45
        value
        1.18
      2. group Id
        OG001
        lower Limit
        1.65
        upper Limit
        2.47
        value
        2.02
denoms
  1. counts
    1. group Id
      OG000
      value
      112
    2. group Id
      OG001
      value
      114
    units
    Participants
description
Flare rate was calculated as the number of new flares over the period of observation in years. Flare rate was calculated using only those new flares before switching to canakinumab. Participants met the definition of new flare if they had: * Flare in joint, not a previously affected joint (at baseline or during study) * Flare in joint previously affected (at baseline or during study) after previous flare in joint has resolved completely. Participants did not meet criterion of having new gout flare if: • Increasing/renewed gout pain in an affected joint before the flare has resolved completely. Flare rates were estimated from a negative binomial model with body mass index at baseline as a covariate.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received 1 subcutaneous (sc) injection of canakinumab 150 mg and 1 intramuscular (im) injection of placebo to triamcinolone acetonide on Day 1. Participants could receive a re-dose of study drug on demand upon the occurrence of new flares, but re-dosing could not occur until 14 days had elapsed after the previous dose. In the first extension study participants completing the 12 week core study could continue to be treated on demand with the same treatment for another 12 weeks for any new gout flare. In the second extension study participants were to receive open-label on demand treatment with canakinumab 150 mg sc for any new flare for an additional year, for a total duration of 18 months.
    id
    OG000
    title
    Canakinumab 150 mg
  2. description
    Participants received 1 intramuscular injection of triamcinolone acetonide 40 mg and 1 sc injection of placebo to canakinumab on Day 1. Participants could receive a re-dose of study drug on demand upon the occurrence of new flares, but re-dosing could not occur until 14 days had elapsed after the previous dose. In the first extension study participants completing the 12 week core study could continue to be treated on demand with the same treatment for another 12 weeks for any new gout flare. In the second extension study participants were to switch to open-label on demand treatment with canakinumab 150 mg sc for any new flare for an additional year. Triamcinolone acetonide was not to be administered in the second extension study.
    id
    OG001
    title
    Triamcinolone Acetonide 40 mg
param Type
MEAN
population Description
The Full Analysis Set (FAS) consisted of all patients as randomized in the core study who had taken at least one dose of study drug.
reporting Status
POSTED
time Frame
From randomization to the end of the second extension period (72 weeks).
title
Flare Rate Per Year
type
SECONDARY
unit Of Measure
flares per patient per year

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

Preserved source evidence · Not medical advice