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Systematic review of the nutritional supplement Perna Canaliculus (green-lipped mussel) in the treatment of osteoarthritis

Systematic review of the nutritional supplement Perna Canaliculus (green-lipped mussel) in the treatment of osteoarthritis
Systematic review of the nutritional supplement Perna Canaliculus (green-lipped mussel) in the treatment of osteoarthritis
Complementary treatments for osteoarthritis (OA) are sought by patients for symptomatic relief and to avoid the iatrogenic effects of non-steroidal anti-inflammatories. This systematic review evaluates the efficacy of the nutritional supplement Perna Canaliculus (green-lipped mussel, GLM) in the treatment of OA and substantially adds to previous work by focussing solely on GLM use in OA as well providing a re-analysis of the original trial data. Randomized or quasi-randomized controlled trials (comparative, placebo-controlled or crossover) were considered for inclusion from Cochrane Library, Medline, Embase, Amed, Cinahl, Scopus and NeLH databases where adults with OA of any joint were randomized to receive either GLM vs. placebo, no additional intervention (usual care), or an active intervention. The methodological quality of the trials was assessed using the JADAD scale. Four RCTs were included, three placebo controlled, the fourth a comparative trial of GLM lipid extract vs. stabilized powder extract. No RCTs comparing GLM to conventional treatment were identified. All four studies assessed GLM as an adjunctive treatment to conventional medication for a clinically relevant time in mild to moderate OA. All trials reported clinical benefits in the GLM treatment group but the findings from two studies cannot be included in this review because of possible un-blinding and inappropriate statistical analysis. The data from the two more rigorous trials, in conjunction with our re-analysis of original data suggests that GLM may be superior to placebo for the treatment of mild to moderate OA. As a credible biological mechanism exists for this treatment, further rigorous investigations are required to assess efficacy and optimal dosage.
osteoarthritis, medline, scale, time, controlled-trial, complementary, placebo, primary-care, England, care, analysis, adult, review, extract, adults, trial, efficacy, clinical-trials, treatment, systematic review, quality, arthritis, seatone, patients, databases, controlled trial
1460-2725
167-179
Brien, S.
4e8e97cd-7bc3-4efd-857e-20790040b80f
Prescott, P.
cf0adfdd-989b-4f15-9e60-ef85eed817b2
Coghlan, B.
d9f98083-15dc-47fd-a027-ab3208274231
Bashir, N.
deb42e12-3b2f-40be-9974-ad46568ab11c
Lewith, G.
0fc483fa-f17b-47c5-94d9-5c15e65a7625
Brien, S.
4e8e97cd-7bc3-4efd-857e-20790040b80f
Prescott, P.
cf0adfdd-989b-4f15-9e60-ef85eed817b2
Coghlan, B.
d9f98083-15dc-47fd-a027-ab3208274231
Bashir, N.
deb42e12-3b2f-40be-9974-ad46568ab11c
Lewith, G.
0fc483fa-f17b-47c5-94d9-5c15e65a7625

Brien, S., Prescott, P., Coghlan, B., Bashir, N. and Lewith, G. (2008) Systematic review of the nutritional supplement Perna Canaliculus (green-lipped mussel) in the treatment of osteoarthritis. QJM: An International Journal of Medicine, 101 (3), 167-179. (doi:10.1093/qjmed/hcm108).

Record type: Article

Abstract

Complementary treatments for osteoarthritis (OA) are sought by patients for symptomatic relief and to avoid the iatrogenic effects of non-steroidal anti-inflammatories. This systematic review evaluates the efficacy of the nutritional supplement Perna Canaliculus (green-lipped mussel, GLM) in the treatment of OA and substantially adds to previous work by focussing solely on GLM use in OA as well providing a re-analysis of the original trial data. Randomized or quasi-randomized controlled trials (comparative, placebo-controlled or crossover) were considered for inclusion from Cochrane Library, Medline, Embase, Amed, Cinahl, Scopus and NeLH databases where adults with OA of any joint were randomized to receive either GLM vs. placebo, no additional intervention (usual care), or an active intervention. The methodological quality of the trials was assessed using the JADAD scale. Four RCTs were included, three placebo controlled, the fourth a comparative trial of GLM lipid extract vs. stabilized powder extract. No RCTs comparing GLM to conventional treatment were identified. All four studies assessed GLM as an adjunctive treatment to conventional medication for a clinically relevant time in mild to moderate OA. All trials reported clinical benefits in the GLM treatment group but the findings from two studies cannot be included in this review because of possible un-blinding and inappropriate statistical analysis. The data from the two more rigorous trials, in conjunction with our re-analysis of original data suggests that GLM may be superior to placebo for the treatment of mild to moderate OA. As a credible biological mechanism exists for this treatment, further rigorous investigations are required to assess efficacy and optimal dosage.

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More information

Published date: 2008
Keywords: osteoarthritis, medline, scale, time, controlled-trial, complementary, placebo, primary-care, England, care, analysis, adult, review, extract, adults, trial, efficacy, clinical-trials, treatment, systematic review, quality, arthritis, seatone, patients, databases, controlled trial

Identifiers

Local EPrints ID: 61685
URI: http://eprints.soton.ac.uk/id/eprint/61685
ISSN: 1460-2725
PURE UUID: f87f5abf-81d6-4fec-965d-6b0ee7ecccab
ORCID for S. Brien: ORCID iD orcid.org/0000-0003-1120-2364

Catalogue record

Date deposited: 10 Sep 2008
Last modified: 16 Mar 2024 03:19

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Contributors

Author: S. Brien ORCID iD
Author: P. Prescott
Author: B. Coghlan
Author: N. Bashir
Author: G. Lewith

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