Skip to Main content Skip to Navigation
Journal articles

Phytalgic®, a food supplement, vs placebo in patients with osteoarthritis of the knee or hip: a randomised double-blind placebo-controlled clinical trial.

Abstract : INTRODUCTION: The medicinal treatment of osteoarthritis (OA) is mostly symptomatic to relieve pain and incapacity with analgesics and non-steroidal anti-inflammatory drugs (NSAIDs), drugs with well-known risks. Complementary medicines might reduce the symptoms of OA and decrease the need for NSAIDs. This study tested the effects of a food supplement, Phytalgic, on pain and function in patients with osteoarthritis and their use of analgesic and NSAIDs. METHODS: A randomized double-blind parallel-groups clinical trial compared Phytalgic (fish-oil, vitamin E, Urtica dioica) to a placebo for three months, in 81 patients with OA of the knee or hip using NSAIDs and/or analgesics regularly. The main outcome measures were use of NSAIDs (in Defined Daily Doses per day - DDD/day) or analgesics (in 500 mg paracetamol-equivalent tablets per week (PET/week) measured each month, and Western Ontario-McMaster University Osteo-Arthritis Index (WOMAC) function scales. RESULTS: After three months of treatment, the mean use of analgesics in the active arm (6.5 PET/week) vs. the placebo arm (16.5) was significantly different (P < 0.001) with a group mean difference of -10.0 (95% CI: -4.9 to -15.1). That of NSAIDs in the active arm (0.4 DDD/day) vs the placebo arm (1.0 DDD/day) was significantly different (P = 0.02) with a group mean difference of - 0.7 DDD/day (95% CI: -0.2 to -1.2). Mean WOMAC scores for pain, stiffness and function in the active arm (respectively 86.5, 41.4 and 301.6) vs the placebo arm (resp. 235.3, 96.3 and 746.5) were significantly different (P < 0.001) with group mean differences respectively of -148.8 (95% CI: -97.7 to -199.9), -54.9 (95% CI: -27.9 to -81.9) and -444.8 (95% CI: -269.1 to -620.4). CONCLUSIONS: The food supplement tested appeared to decrease the need for analgesics and NSAIDs and improve the symptoms of osteoarthritis. TRIAL REGISTRATION: Clinicaltrials.gov NCT00666523.
Complete list of metadatas

Cited literature [36 references]  Display  Hide  Download

https://www.hal.inserm.fr/inserm-00663551
Contributor : Ed. Bmc <>
Submitted on : Friday, January 27, 2012 - 1:09:26 PM
Last modification on : Friday, October 23, 2020 - 4:42:25 PM
Long-term archiving on: : Wednesday, December 14, 2016 - 2:19:01 AM

Files

ar2891.pdf
Publisher files allowed on an open archive

Identifiers

Collections

Citation

Alain Jacquet, Pierre-Olivier Girodet, Antoine Pariente, Karelle Forest, Laurent Mallet, et al.. Phytalgic®, a food supplement, vs placebo in patients with osteoarthritis of the knee or hip: a randomised double-blind placebo-controlled clinical trial.. Arthritis Research and Therapy, BioMed Central, 2009, 11 (6), pp.R192. ⟨10.1186/ar2891⟩. ⟨inserm-00663551⟩

Share

Metrics

Record views

338

Files downloads

529