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Does statin use have a disease modifying effect in symptomatic knee osteoarthritis? Study protocol for a randomised controlled trial


Wang, Y and Tonkin, A and Jones, G and Hill, C and Ding, C and Wluka, AE and Forbes, A and Cicuttini, FM, Does statin use have a disease modifying effect in symptomatic knee osteoarthritis? Study protocol for a randomised controlled trial, Trials, 16 Article 584. ISSN 1745-6215 (2015) [Refereed Article]


Copyright Statement

2015 Wang et al. Licensed under Creative Commons Attribution 4.0 International (CC BY 4)

DOI: doi:10.1186/s13063-015-1122-2


Background: Osteoarthritis (OA) is a major clinical and public health problem, with no current medications approved as having disease modifying effects. HMG-CoA reductase inhibitors, or "statins", a drug class widely used to prevent cardiovascular events, could potentially affect OA progression via a number of mechanisms including their effects on lipid metabolism and inflammation. The aim of this multicentre, randomised, double-blind, placebo-controlled trial is to determine whether atorvastatin reduces the progression of knee structural changes and symptoms over 2 years in patients with symptomatic knee OA.

Methods/design: 350 patients with symptomatic knee OA will be recruited through the OA Clinical Trial Network (in Melbourne, Hobart and Adelaide). They will be randomly allocated to the two arms of the study, receiving either 40 mg of atorvastatin or identical placebo once daily for 2 years. Magnetic resonance imaging of the knee will be performed at baseline and 2 years later. Knee structure, symptoms and function will be assessed using validated methods. The primary outcome is annual percentage change in knee cartilage volume. Secondary outcomes include progression of cartilage defects, bone marrow lesions, knee pain and function. The primary analysis will be by intention to treat, but per protocol analyses will also be performed.

Discussion: The study will provide high-quality evidence to address whether atorvastatin has a novel disease modifying effect in OA by delaying the structural and symptomatic progression of knee OA. Thus, the trial has major public health and clinical importance, as if found to be beneficial, atorvastatin could produce substantial cost savings by delaying and possibly reducing the need for joint replacement surgery, and provide marked improvements in quality of life for people with OA.

Item Details

Item Type:Refereed Article
Keywords:statins, osteoarthritis, cartilage, pain, magnetic resonance imaging
Research Division:Biomedical and Clinical Sciences
Research Group:Clinical sciences
Research Field:Rheumatology and arthritis
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Jones, G (Professor Graeme Jones)
UTAS Author:Ding, C (Professor Chang-Hai Ding)
ID Code:106213
Year Published:2015
Web of Science® Times Cited:21
Deposited By:Menzies Institute for Medical Research
Deposited On:2016-02-02
Last Modified:2017-11-01
Downloads:201 View Download Statistics

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