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Aim: A standardized preparation of seeds and shells of selected sub-species of Rosa canina L, trade name Hyben Vital, reduces discomfort from osteoarthritis of the knee and hip. This study aims to investigate the impact of the same rose-hip powder (RHP) on discomfort and the consumption of rescue medication, in patients with osteoarthritis of the hand. Methods: The double blind, placebo-controlled, crossover trial included 30 patients with osteoarthritis of the dominant hand. Patients were randomly allocated to treatment with either five gram encapsulated RHP or placebo, for three months (Phase 1), after which they switched to the corresponding treatment for a further three months period (Phase 2). Before entering the study, after 3 weeks and following three months of each of the study phases, scores for pain, stiffness and general feeling of discomfort were evaluated using a 10 step categorical scale, focusing on 16 different daily activities of the hand. The consumption of rescue medication was also calculated at the beginning and at the end of each study phase. Data are based on the intention to treat. Results: At the end of Phase 1, 90% of patients in the group receiving RHP first (group A), showed a reduction in pain, as compared to 36% in the group B initially given placebo (p 0.029). In line with this observation, stiffness and the general feeling of discomfort from the disease declined during RHP treatment (p 0.032). In group A, symptom reduction was still indicated by the study subjects 3 weeks after the switch to placebo. The consumption of rescue medication such as paracetamol, codeine and tramadol also declined significantly in group A when compared to group B (p 0.013). Conclusion: The present data suggest that administration of RHP, containing seeds and shells can reduce symptoms of osteoarthritis of the hand and consumption of rescue medication.

open journal of rheumatology and autoimmune diseases

Rose Hip Powder That Contains the Natural Amount of Shells and Seeds Alleviates Pain in Osteoarthritis of the Dominant Hand—A Randomized, Double-Blind, Placebo-Controlled, Cross-Over Clinical Trial