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Efficacy and safety of single injection of cross-linked sodium hyaluronate vs. three injections of high molecular weight sodium hyaluronate for osteoarthritis of the knee: a double-blind, randomized, multi-center, non-inferiority study

Article scientifique 2017 Anglais

Résumé

BACKGROUND: This randomized, double-blind, multi-center, non-inferiority trial was conducted to assess the efficacy and safety of a cross-linked hyaluronate (XLHA, single injection form) compared with a linear high molecular hyaluronate (HMWHA, thrice injection form) in patients with symptomatic knee osteoarthritis. METHODS: Two hundred eighty seven patients with osteoarthritis (Kellgren-Lawrence grade I to III) were randomized to each group. Three weekly injections were given in both groups but two times of saline injections preceded XLHA injection to maintain double-blindness. Primary endpoint was the change of weight-bearing pain (WBP) at 12 weeks after the last injection. Secondary endpoints included Western Ontario and McMaster Universities Osteoarthritis index; patient's and investigator's global assessment; pain at rest, at night, or in motion; OMERACT-OARSI responder rate; proportion of patients achieving at least 20 mm or 40% decrease in WBP; and rate of rescue medicine use and its total consumption. RESULTS: Mean changes of WBP at 12 weeks after the last injection were -33.3 mm with XLHA and -29.2 mm with HMWHA, proving non-inferiority of XLHA to HMWHA as the lower bound of 95% CI (-1.9 mm, 10.1 mm) was well above the predefined margin (-10 mm). There were no significant between-group differences in all secondary endpoints. Injection site pain was the most common adverse event and no remarkable safety issue was identified. CONCLUSIONS: This study demonstrated that a single injection of XLHA was non-inferior to three weekly injections of HMWHA in terms of WBP reduction, and supports XLHA as an effective and safe treatment for knee osteoarthritis. TRIAL REGISTRATION: ClinicalTrials.gov ( NCT01510535 ). This trial was registered on January 6, 2012.

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Ha, C., Park, Y., Choi, C., Kyung, H., Lee, J., Yoo, J., Yoo, J., Choi, C., Kim, C., Kim, H., Oh, K., Bin, S., Lee, M. (2017). Efficacy and safety of single injection of cross-linked sodium hyaluronate vs. three injections of high molecular weight sodium hyaluronate for osteoarthritis of the knee: a double-blind, randomized, multi-center, non-inferiority study. https://doi.org/10.1186/s12891-017-1591-4

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Chul‐Won Ha Yong‐Beom Park Chong‐Hyuk Choi Hee-Soo Kyung Ju-Hong Lee Jae Doo Yoo Ju-Hyung Yoo Choong-Hyeok Choi Chang‐Wan Kim Hee-Chun Kim Kwang-Jun Oh Seong‐Il Bin Myung Chul Lee

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