The BRoccoli In Osteoarthritis (BRIO study) - A randomised controlled feasibility trial to examine the potential protective effect of broccoli bioactives, (specifically sulforaphane), on osteoarthritis.

Rose K Davidson, Laura Watts, Gemma Beasy, shikha Saha, Paul Kroon, Aedin Cassidy, Allan Clark, William Fraser, Iain Mcnamara, Sarah R Kingsbury, Philip G Conaghan, Ian M Clark, Alex J MacGregor
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Abstract

Objective The Broccoli in Osteoarthritis (BRIO Study) was conducted to determine whether dietary sulforaphane (SFN), consumed as broccoli, improves pain and/or physical function in participants with knee osteoarthritis (OA). This was a proof of principle study to test the feasibility of the trial to optimise the design of an appropriately powered study. Design Two-centre, double-blind, two-arm parallel, randomised placebo-controlled, dietary intervention feasibility trial. Patients with radiographic knee osteoarthritis (Kellgren-Lawrence score 2-3), with pain of at least 4 on a scale of 0-10 were recruited. The intervention was a high glucoraphanin broccoli, (source of SFN), or a matched placebo (no SFN) soup. Pain and measures of physical function were measured at baseline, 6 and 12 weeks. Results The mean WOMAC pain score (scale 0 - 20) was decreased by 4.2 (95% CI: 1.03,7.38) following intervention, Similar patterns of improvement were observed for other pain and function outcome measures. Study data, sample collections and intervention adherence were 100% compliant except where COVID restrictions applied. Acceptability for randomisation was 100% and acceptability for the intervention was 92%. There were three related adverse events, two of which were expected. Conclusions High glucosinolate broccoli soup is a novel approach to managing OA that is widely accessible and can be used on a large scale. This study shows that it is an acceptable way of delivering dietary bioactives and has potential for therapeutic benefit. The primary outcome of pain improved in the intervention group compared to the placebo and the confidence interval encompassed the minimal clinically important difference. The data provide justification for proceeding to a large scale, appropriately powered intervention trial.
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西兰花骨关节炎研究(BRIO)--一项随机对照可行性试验,旨在研究西兰花生物活性物质(特别是莱菔硫烷)对骨关节炎的潜在保护作用。
西兰花骨关节炎(BRIO)研究旨在确定以西兰花形式摄入的膳食中的莱菔硫烷(SFN)是否能改善膝关节骨关节炎(OA)患者的疼痛和/或身体功能。这是一项原则性证明研究,旨在测试试验的可行性,以优化设计适当的研究。试验招募了膝关节骨性关节炎(凯尔格伦-劳伦斯评分 2-3 分)患者,患者疼痛程度至少为 4 级(0-10 分)。干预措施是食用高葡萄糖苷含量的西兰花(SFN 的来源)或配对安慰剂(无 SFN)汤。在基线、6 周和 12 周时对疼痛和身体功能进行测量。结果干预后,WOMAC疼痛评分(0-20分)平均降低了4.2分(95% CI:1.03,7.38),其他疼痛和功能结果测量也出现了类似的改善模式。除 COVID 限制外,研究数据、样本采集和干预措施的遵守率均为 100%。随机化的可接受性为 100%,干预的可接受性为 92%。发生了三起相关不良事件,其中两起在意料之中。结论高葡萄糖苷酸西兰花汤是一种管理OA的新方法,可广泛获取并大规模使用。这项研究表明,这是一种可接受的提供膳食生物活性物质的方法,具有潜在的治疗效果。与安慰剂相比,干预组的主要疼痛结果有所改善,置信区间达到了最小临床重要性差异。这些数据为继续进行大规模、适当的干预试验提供了依据。
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