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Multi-domain effectiveness of guselkumab evaluated via composite indices through 1 year in patients with PsA and inadequate response to TNFi: post hoc analysis of COSMOS
Rheumatology ( IF 4.7 ) Pub Date : 2024-10-22 , DOI: 10.1093/rheumatology/keae586
Laure Gossec, Xenofon Baraliakos, Daniel Aletaha, Mohamed Sharaf, Emmanouil Rampakakis, Frédéric Lavie, Clementina López-Medina, Carlo Selmi, Laura C Coates

Objective Evaluate guselkumab efficacy, an anti-interleukin-23p19-subunit antibody, in patients with active psoriatic arthritis (PsA) and inadequate response to 1–2 tumour necrosis factor inhibitors (TNFi-IR), utilizing composite indices assessing disease activity across disease domains. Methods In the Phase IIIb COSMOS trial, 285 adults with TNFi-IR PsA were randomized (2:1) to receive guselkumab 100 mg or placebo at Week (W)0, W4, then every 8 weeks through W44. Patients receiving placebo crossed over to guselkumab at W24. In this post-hoc analysis, composite indices evaluated included the Disease Activity Index for Psoriatic Arthritis (DAPSA), Disease Activity Score 28 (DAS28), Psoriatic Arthritis Response Criteria (PsARC), Psoriatic Arthritis Disease Activity Score (PASDAS), GRAPPA Composite score (GRACE), modified Composite Psoriatic Disease Activity Index (mCPDAI), minimal disease activity (MDA) and very low disease activity (VLDA). Through W24, treatment failure rules were applied. Through W48, non-responder imputation was used for missing data. Results Greater proportions of guselkumab- than placebo-randomized patients achieved composite index endpoints relating to low disease activity (LDA; 14.8–52.4% vs 3.1–28.1%) or remission (3.7–5.3% vs 0.0–2.1%) at W24. Among guselkumab-randomized patients, LDA rates increased to W48 (DAPSA, 44.4%; DAS28, 47.8%; PASDAS, 34.4%; GRACE, 33.3%; mCPDAI, 40.2%), and 27.0% and 64.0% achieved MDA and a PsARC response, respectively. In the placebo→guselkumab crossover group, W48 response rates were similar to the guselkumab-randomized group. Conclusion Guselkumab treatment provided substantial benefits across multiple disease domains, with increasing proportions of patients achieving LDA/remission over 1 year, highlighting the effectiveness of guselkumab despite previous inadequate response to TNFi.

中文翻译:


通过综合指数评估 guselkumab 在 PsA 和对 TNFi 反应不足患者中 1 年的多领域有效性:COSMOS 的事后分析



目的 利用评估跨疾病领域的疾病活动的综合指数,评估抗白细胞介素-23p19 亚单位抗体 guselkumab 在活动性银屑病关节炎 (PsA) 和对 1-2 种肿瘤坏死因子抑制剂 (TNFi-IR) 反应不足患者中的疗效。方法 在 IIIb 期 COSMOS 试验中,285 名患有 TNFi-IR PsA 的成人患者被随机分配 (2:1) 在第 (W)0、第 4 周接受 guselkumab 100 mg 或安慰剂,然后每 8 周接受一次至第 44 周。接受安慰剂的患者在第 24 周交叉使用 guselkumab。在这项事后分析中,评估的综合指数包括银屑病关节炎疾病活动指数 (DAPSA)、疾病活动评分 28 (DAS28)、银屑病关节炎反应标准 (PsARC)、银屑病关节炎疾病活动评分 (PASDAS)、GRAPPA 综合评分 (GRACE)、改良复合银屑病活动指数 (mCPDAI)、最小疾病活动度 (MDA) 和极低疾病活动度 (VLDA)。通过 W24,应用了治疗失败规则。通过 W48,对缺失数据使用无响应者插补。结果与安慰剂随机分配的患者相比,guselkumab 患者在第 24 周达到与低疾病活动度 (LDA;14.8-52.4% 对 3.1-28.1%) 或缓解(3.7-5.3% 对 0.0-2.1%)相关的复合指数终点的比例更高。在 guselkumab 随机分组的患者中,LDA 发生率增加到第 48 周(DAPSA,44.4%;DAS28,47.8%;PASDAS,34.4%;格雷斯,33.3%;mCPDAI,40.2%),27.0% 和 64.0% 分别达到 MDA 和 PsARC 反应。在安慰剂→ guselkumab 交叉组中,W48 反应率与 guselkumab 随机组相似。 结论 Guselkumab 治疗在多个疾病领域提供了实质性的益处,1 年内达到 LDA/缓解的患者比例增加,突出了 guselkumab 的有效性,尽管之前对 TNFi 的反应不足。
更新日期:2024-10-22
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