tailieunhanh - Báo cáo y học: "Is Phytalgic® a goldmine for osteoarthritis patients or is there something fishy about this nutraceutical? A summary of findings and risk-of-bias assessment"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Is Phytalgic® a goldmine for osteoarthritis patients or is there something fishy about this nutraceutical? A summary of findings and risk-of-bias assessment. | Christensen and Bliddal Arthritis Research Therapy 2010 12 105 http content 12 1 105 EDITORIAL Is Phytalgic a goldmine for osteoarthritis patients or is there something fishy about this nutraceutical A summary of findings and risk-of-bias assessment Robin Christensen - 2 and Henning Bliddal1 3 See related research by Jacquet http content 6 R 92 Abstract A food supplement containing fish oils urtica dioica zinc and vitamin E Phytalgic for osteoarthritis OA has now been tested in a placebo-controlled trial for 3 months and according to the authors has a very large clinical effect considerably larger than that of any other known product. Even experts endorsing nutraceuticals for OA symptoms would probably agree that a nutraceutical with an effect size above is rarely seen. Despite our concerns about the fact that trial registration took place after the study was completed and the likelihood that patients would note the taste of fish a circumstance that would lead to detection bias we consider these data promising though with a high risk of bias. Given the modest results of ordinary pharmacological therapy for osteoarthritis OA it was of great interest to see the results by Jacquet and colleagues 1 in the previous issue of Arthritis Research Therapy. The authors tested a new nutraceutical a food supplement marketed as Phytalgic in a randomized controlled trial RCT design. The protocol of this trial was registered in NCT00666523 2 . However one aspect of concern is whether the registration was prespecified. The registration claims that exactly 81 patients will be randomly assigned. How can a protocol Correspondence The Parker Institute Musculoskeletal Statistics Unit MSU Copenhagen University Hospital Frederiksberg Nordre Fasanvej 57 DK-2000 Copenhagen F Denmark 2Institute of Sports Science and Clinical Biomechanics University of Southern Denmark Campusvej 55 .

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