CClinicalTrials.gg
CompletedNCT01451645Updated May 12, 2014Results posted

Efficacy and Safety of Colchicine for the Prevention of Gout Flares During the Initiation of Allopurinol

A Phase 4 interventional study of Colchicine (Colcrys®) and placebo in Intercritical Gout, sponsored by Regeneron Pharmaceuticals. Completed at 37 sites in United States. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2014-05-12.

Sponsored by Regeneron Pharmaceuticals · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
82
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

The purpose of this study is to determine if once-daily treatment with colchicine, compared to placebo, is effective in preventing gout flares in patients who are initiating therapy with allopurinol.

02

Conditions studied

  • Intercritical Gout

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Keywords

  • Gout
03

In context

Gout

232 studies on the registry are indexed under Gout; 45 are open to participants now.

This study's enrollment of 82 is below the median of 121 across 202 interventional studies indexed under Gout.

Browse Gout studies →

Lead sponsor

Regeneron Pharmaceuticals is the lead sponsor of 400 studies on the registry; 91 are open to participants now.

Of its 120 completed or terminated interventional studies of FDA-regulated products, 77 (64%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

Inclusion criteria include, but are not limited to the following:

  1. Men and postmenopausal women between the ages of 18 and 70
  2. Meets the ARA criteria for classification of acute gout
  3. Tophi present and/or a history of gout attacks in 2 or 3 joints
  4. Self-reported history of at least 2 gout flares in the prior 12 months
  5. Serum uric acid greater than or equal to 7.5 mg/dL at the first visit

Exclusion criteria

Exclusion Criteria:

Exclusion criteria include, but are not limited to the following:

  1. Patients with an acute gout flare within 2 weeks prior to the first visit
  2. Patients with chronic, active gout with at least 1 continuously inflamed joint for at least 4 weeks
  3. Patients with more than three joints affected by gout
  4. History of intolerance or allergy to colchicine or allopurinol
  5. Use of allopurinol, benzbromarone, febuxostat, probenecid, or sulfinpyrazone less than 3 months prior to entering the study
  6. Use of colchicine less than 14 days prior to entering the study
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
82 participants (actual)

Study arms

  • Other
    placebo

    daily placebo dosing for 16 weeks with background allopurinol therapy

    Drug: placebo · Drug: allopurinol

  • Active comparator
    Colchicine (Colcrys®)

    daily 0.6 mg colchicine dosing for 16 weeks with background allopurinol therapy

    Drug: Colchicine (Colcrys®) · Drug: allopurinol

Interventions

  • DrugColchicine (Colcrys®)

    daily 0.6 mg colchicine dosing for 16 weeks

  • Drugplacebo

    daily placebo dosing for 16 weeks

  • Drugallopurinol

    background therapy

06

What researchers measure

Primary outcomes

  1. Number of Gout Flares Per Participant From Day 1 to Week 16

    Time frame: Day 1 to Week 16

Secondary outcomes

  1. Percentage of Participants With at Least 1 Gout Flare From Day 1 to Week 16

    Time frame: Day 1 to Week 16

  2. Percentage of Participants With at Least 2 Gout Flares From Day 1 to Week 16

    Time frame: Day 1 to Week 16

  3. Mean Number of Gout Flare Days Per Participant Assessed From Day 1 to Week 16

    Time frame: Day 1 to Week 16

07

Results

Posted May 12, 2014
Limitations and caveats
This clinical trial was not directly related to the development of an investigational/medicinal product.

Participant flow

Overall, 82 patients from 20 clinical sites participated in the study between 19-October-2011 to 27-August-2012.

Participant flow — Overall Study
MilestonePlaceboColchicine (Colcrys®) 0.6mg
Started4141
Completed3233
Not completed98
Withdrew: Protocol violation10
Withdrew: Adverse event03
Withdrew: Withdrawal by subject42
Withdrew: Lost to follow-up43

Outcome measures

PrimaryNumber of Gout Flares Per Participant From Day 1 to Week 16
Time frame:
Day 1 to Week 16
Reported as:
Mean · gout flares
Number of Gout Flares Per Participant From Day 1 to Week 16
gout flaresPlaceboColchicine (Colcrys®) 0.6mg
Number of Gout Flares Per Participant From Day 1 to Week 161.1 ± 1.900.3 ± 0.56
SecondaryPercentage of Participants With at Least 1 Gout Flare From Day 1 to Week 16
Time frame:
Day 1 to Week 16
Reported as:
Number · Percentage of Participants
Percentage of Participants With at Least 1 Gout Flare From Day 1 to Week 16
Percentage of ParticipantsPlaceboColchicine (Colcrys®) 0.6mg
Percentage of Participants With at Least 1 Gout Flare From Day 1 to Week 1643.9 (28.47 to 60.25)24.4 (12.36 to 40.30)
SecondaryPercentage of Participants With at Least 2 Gout Flares From Day 1 to Week 16
Time frame:
Day 1 to Week 16
Reported as:
Number · Percentage of Participants
Percentage of Participants With at Least 2 Gout Flares From Day 1 to Week 16
Percentage of ParticipantsPlaceboColchicine (Colcrys®) 0.6mg
Percentage of Participants With at Least 2 Gout Flares From Day 1 to Week 1624.4 (12.36 to 40.30)4.9 (0.60 to 16.53)
SecondaryMean Number of Gout Flare Days Per Participant Assessed From Day 1 to Week 16
Time frame:
Day 1 to Week 16
Reported as:
Mean · days
Mean Number of Gout Flare Days Per Participant Assessed From Day 1 to Week 16
daysPlaceboColchicine (Colcrys®) 0.6mg
Mean Number of Gout Flare Days Per Participant Assessed From Day 1 to Week 166.6 ± 13.201.6 ± 3.75

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo—0/41 (0%)20/41 (48.8%)
Colchicine (Colcrys®) 0.6mg—1/41 (2.4%)20/41 (48.8%)
Most frequent serious events
Most frequent serious events
EventPlaceboColchicine (Colcrys®) 0.6mg
DyspneaRespiratory, thoracic and mediastinal disorders0/411/41
Most frequent other events
Most frequent other events
EventPlaceboColchicine (Colcrys®) 0.6mg
HeadacheNervous system disorders7/417/41
Pain in extremityMusculoskeletal and connective tissue disorders3/415/41
Back painMusculoskeletal and connective tissue disorders1/413/41
HypoaesthesiaNervous system disorders0/413/41
NasopharyngitisInfections and infestations3/411/41
DiarrhoeaGastrointestinal disorders3/411/41
InsomniaPsychiatric disorders3/410/41

Baseline characteristics

The study population consisted of adults who met the criteria of the ARA for acute arthritis of primary gout or had monosodium urate monohydrate microcrystals identified in joint fluid, had tophi present in joints or a history of polyarticular gout attacks, a history of ≥2 gout flares in the past year, and were initiating therapy with allopurinol.

Age, Categorical
Age, Categorical(Participants)PlaceboColchicine (Colcrys®) 0.6mgTotal
<=18 years000
Between 18 and 65 years393574
>=65 years268
Sex: Female, Male
Sex: Female, Male(Participants)PlaceboColchicine (Colcrys®) 0.6mgTotal
Female167
Male403575
08

Study locations

37 sites
  • Alabaster, Alabama, United States
  • Mesa, Arizona, United States
  • Upland, California, United States
  • Trumbull, Connecticut, United States
  • Debary, Florida, United States
  • Jacksonville, Florida, United States
  • Kissimmee, Florida, United States
  • Canton, Georgia, United States
  • Boise, Idaho, United States
  • Lexington, Kentucky, United States
  • Bethesda, Maryland, United States
  • Reisterstown, Maryland, United States
  • Bingham Farms, Michigan, United States
  • Brooklyn Center, Minnesota, United States
  • Kansas City, Missouri, United States
  • Billings, Montana, United States
  • Elizabeth, New Jersey, United States
  • Albuquerque, New Mexico, United States
  • New York, New York, United States
  • Charlotte, North Carolina, United States
  • Hickory, North Carolina, United States
  • Morganton, North Carolina, United States
  • Winston-Salem, North Carolina, United States
  • Duncansville, Pennsylvania, United States
  • Reading, Pennsylvania, United States
  • West Reading, Pennsylvania, United States
  • Greer, South Carolina, United States
  • Mt. Pleasant, South Carolina, United States
  • Johnson City, Tennessee, United States
  • Dallas, Texas, United States
  • Katy, Texas, United States
  • San Antonio, Texas, United States
  • Salt Lake City, Utah, United States
  • West Jordan, Utah, United States
  • Norfolk, Virginia, United States
  • Seattle, Washington, United States
  • Wauwatosa, Wisconsin, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 12, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01451645
Lead sponsor
Regeneron Pharmaceuticals
Responsible party
Sponsor
First posted
Oct 14, 2011
Start date
Oct 2011
Primary completion
Aug 2012
Completion
Sep 2012
Results posted
May 12, 2014
Last update
May 12, 2014

Study contacts

Clinical Trial Management
study director · Regeneron Pharmaceuticals

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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