Evidence map›Paper›PMID 25925674›Full record

Trial reportTrials2015

Colchicine effectiveness in symptom and inflammation modification in knee osteoarthritis (COLKOA): study protocol for a randomized controlled trial.

Ying-Ying Leung, Julian Thumboo, Bak Siew Wong, Ben Haaland, Balram Chowbay, Bibhas Chakraborty, Mann Hong Tan, Virginia B Kraus

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02176460 (A Randomized Controlled Trial of Colchicine for Symptom and Inflammation Modification in Knee Osteoarthritis), which is not on this map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02176460 phase2 / phase3completednot on this map

A Randomized Controlled Trial of Colchicine for Symptom and Inflammation Modification in Knee Osteoarthritis

TypeinterventionalSponsorSingapore General HospitalRan2013 to 2015Enrolled109ConditionsKnee OsteoarthritisArmsColchicine, Placebo
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Colchicine for the primary prevention of cardiovascular events.The Cochrane database of systematic reviews · 2025
    Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. New Drug Treatments for Osteoarthritis: What is on the Horizon?European medical journal. Rheumatology · 2017
    Article
  9. Review
  10. Review
  11. Colchicine--Update on mechanisms of action and therapeutic uses.Seminars in arthritis and rheumatism · 2015
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Ying-Ying LeungDuke NUS Graduate Medical School, Singapore, Singapore. katyccc@hotmail.com.
Julian ThumbooDuke NUS Graduate Medical School, Singapore, Singapore. Julian.thumboo@sgh.com.sg.
Bak Siew WongDepartment of Diagnostic Radiology, Singapore General Hospital, Singapore, Singapore. steven.wong@sgh.com.sg.
Ben HaalandDuke NUS Graduate Medical School, Singapore, Singapore. benhaaland@hotmail.com.
Balram ChowbayDuke NUS Graduate Medical School, Singapore, Singapore. ctebal@nccs.com.sg.
Bibhas ChakrabortyDuke NUS Graduate Medical School, Singapore, Singapore. bibhas.chakraborty@duke-nus.edu.sg.
Mann Hong TanDepartment of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore. tan.mann.hong@sgh.com.sg.
Virginia B KrausThe Duke Molecular Physiology Institute and Division of Rheumatology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA. vbk@duke.edu.
Duke-NUS Medical School · SGSingapore General Hospital · SGDuke University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite the high prevalence and global impact of knee osteoarthritis (KOA), current treatments are palliative. No disease modifying anti-osteoarthritic drug (DMOAD) has been approved. We recently demonstrated significant involvement of uric acid and activation of the innate immune response in osteoarthritis (OA) pathology and progression, suggesting that traditional gout therapy may be beneficial for OA. We therefore assess colchicine, an existing commercially available agent for gout, for a new therapeutic application in KOA. METHODS/

designCOLKOA is a double-blind, placebo-controlled, randomized trial comparing a 16-week treatment with standard daily dose oral colchicine to placebo for KOA. A total of 120 participants with symptomatic KOA will be recruited from a single center in Singapore. The primary end point is 30% improvement in total Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score at week 16. Secondary end points include improvement in pain, physical function, and quality of life and change in serum, urine and synovial fluid biomarkers of cartilage metabolism and inflammation. A magnetic resonance imaging (MRI) substudy will be conducted in 20 participants to evaluate change in synovitis. Logistic regression will be used to compare changes between groups in an intention-to-treat analysis. DISCUSSION: The COLKOA trial is designed to evaluate whether commercially available colchicine is effective for improving signs and symptoms of KOA, and reducing synovial fluid, serum and urine inflammatory and biochemical joint degradation biomarkers. These biomarkers should provide insights into the underlying mechanism of therapeutic response. This trial will potentially provide data to support a new treatment option for KOA.

trial registrationThe trial has been registered at clinicaltrials.gov as NCT02176460 . Date of registration: 26 June 2014.

Indexed as

Administration, OralAdultAgedAnti-Inflammatory AgentsBiomarkersClinical ProtocolsColchicineDouble-Blind MethodFemaleHumansInflammation MediatorsIntention to Treat AnalysisKnee JointLogistic ModelsMagnetic Resonance ImagingMaleAnti-Inflammatory AgentsBiomarkersColchicineInflammation Mediators

Identifiers

PMID25925674
PMCPMC4434529
OpenAlexW2049855803

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.