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Abstract Number: 2113

Glucosamine–Chondroitin Sulfate Reduces Pain, Disability and Non-Steroidal Anti-Inflammatory Drug  consumption In Patients With Chronic Low Back Pain: A Large, Community-Based, Pilot, Open Prospective Study

Gurkirpal Singh1,2, Liudmila Alekseeva3, Valeriy Alekseev4 and Evgeny Nasonov5, 1ICORE, Woodside, CA, 2Gastroenterology/Hepatology, Stanford University School of Medicine, Palo Alto, CA, 3State Institute of Rheumatology of Russian Academy of Medical Sciences, Moscow, Russia, 4Department of Nervous Diseases, First Moscow State Medical University, Moscow, Russia, 5State NII of Rheumatology of Russian Academy of Sciences, Moscow, Russia

Meeting: 2013 ACR/ARHP Annual Meeting

Keywords: chondroitin, glucosamine and low back pain

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Session Information

Session Title: Orthopedics, Low Back Pain and Rehabilitation

Session Type: Abstract Submissions (ACR)

Background/Purpose: The Global Burden of Diseases, Injuries, and Risk Factors Study 2010 identified low back pain as the leading cause of Years Lived with Disability (YLD) worldwide.  In 2010, low back pain (LBP) accounted for over 83 million YLDs, and was the number one cause of YLD in all developed countries in the world (1).  LBP continues to create diagnostic and therapeutic challenges due to its unclear etiology and multiple interventions of uncertain efficacy.  Significant proportion of LBP may be attributed to osteoarthritis (OA) and degenerative changes in the spine (2).  Glucosamine-chondroitin sulfate (GCS) combination is widely used in the treatment of OA, despite conflicting evidence of its efficacy; however there are few prospective scientific investigations of its therapeutic merits in the management of LBP. 

Objective: To study the efficacy and safety of GCS in the community management of LBP in a large-scale open pilot prospective observational study.

Methods: We enrolled patients between 40 and 65 years of age who had LBP for at least 12 weeks with a pain intensity >3 on a 0-10 point visual analogue scale (VAS).  Major exclusion criteria were the presence of fibromyalgia, degenerative spondylolisthesis, and alcohol and/or drug abuse.  All patients were treated with ARTRA (combination of glucosamine hydrochloride 500 mg and chondroitin sulfate 500 mg in tablet form; Unipharm Inc.) at a dose of 1 tab bid for the first month and then 1 tab daily for the next two months.  The primary endpoint was pain intensity (at rest and movement) as measured on a 0-10 point VAS.  Secondary endpoints included the Oswestry Disability Index, patient global assessment of efficacy (0-5 scale) and NSAID consumption.

Results: We present results from a planned interim analysis of the study in the first 2,344 patients (mean age 52.1 years, 67% women). Patients reported an improvement in pain at rest from mean (+ SD) of 5.2 + 2.6 at study entry to 1.4+1.6 at 3 months (p<0.01).  Pain at movement decreased from 6.7+1.7 to 2.3 +1.8 (p<0.01).  The Oswestry disability index improved by almost 75%, from 20.8+9.4 to 5.7+6.3 (p<0.01) at 3 months. NSAIDs were used by 63.5% of patients at study entry; at 3 months of treatment, only 6.7% of patients required NSAIDs for pain control.  An adverse event (AE) was reported by 156 (6.7%) patients (mostly gastrointestinal in origin, such as nausea, abdominal pain and dry mouth) but only 2 patients deemed the AE to be severe enough to discontinue therapy.

Conclusion: Although open and uncontrolled, this pilot, community-based efficacy and safety study shows dramatic reductions in pain and disability, and in particular, a 90% reduction in NSAID consumption in patients with LBP treated with GCS. With its benign safety profile, GCS therapy deserves serious evaluation in the management of LBP in a prospective randomized double-blinded clinical trial.

References: 1. Vos T, Flaxman A, Naghavi M et al. Years lived with disability (YLDs) for 1160 sequelae of 289 diseases and injuries 1990-2010: a systematic analysis for the Global Burden of Disease Study 2010. Lancet 2012; 380:2163-96. 2. Borenstein D. Does osteoarthritis of the lumbar spine cause chronic low back pain? Curr Pain Headache Rep. 2004; 8:512-517.


Disclosure:

G. Singh,

Unipharm,

5;

L. Alekseeva,

Unipharm,

5;

V. Alekseev,

Unipharm,

5;

E. Nasonov,
None.

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ACR Meeting Abstracts - https://acrabstracts.org/abstract/glucosamine-chondroitin-sulfate-reduces-pain-disability-and-non-steroidal-anti-inflammatory-drug-consumption-in-patients-with-chronic-low-back-pain-a-large-community-based-pilot-ope/

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