Okubo Yukari, Tada Yayoi, Takahashi Hidetoshi, Abe Masatoshi, Yamanaka Keiichi, Tilt Nicola, Cross Nancy, Deherder Delphine, Matano Mizuho, Nakagawa Hidemi
Department of Dermatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan.
Dermatol Ther (Heidelb). 2025 Aug 11. doi: 10.1007/s13555-025-01509-9.
This study aimed to report bimekizumab (BKZ) efficacy and safety in Japanese patients with generalised pustular psoriasis (GPP) and erythrodermic psoriasis (EP).
Patients aged ≥ 18 years with plaque psoriasis, GPP, or EP received BKZ for 144 weeks; only results for GPP and EP reported here. All patients received BKZ 320 mg every 4 weeks (Q4W) at week 0, with dose adjustments for Q4W or Q8W at weeks 16 and 48, depending on Investigator's Global Assessment (IGA) 0/1 response. Efficacy outcomes assessed to week 144: IGA 0/1, Dermatology Life Quality Index (DLQI) 0/1, Clinical Global Impressions-Improvement (CGI-I), ≥ 75/90/100% improvement from baseline Psoriasis Area and Severity Index (PASI 75/90/100), ≥ 75/90/100% improvement from baseline modified Nail Psoriasis Severity Index (mNAPSI 75/90/100), and patient-reported outcomes; GPP-specific outcomes: Japanese Dermatological Association (JDA) severity index and Global Improvement Score (GIS). Treatment emergent adverse events (TEAEs) evaluated through weeks 0-144 and safety follow-up.
At week 144, most patients with GPP (8/10) and EP (10/11) completed the study. At week 16, all patients reported efficacy outcomes improving with BKZ, generally persisting through week 144. At week 144 (missing visit: 1 GPP), 6/7 patients with GPP and 8/10 with EP achieved IGA 0/1; 5/7 and 9/10 patients achieved DLQI 0/1; 7/7 and 9/10 patients achieved CGI-I response ("improved"/"remission"); and 6/7 and 9/10 patients achieved PASI 90, respectively; 2/5 patients with GPP and 4/9 with EP achieved week 144 mNAPSI 100. Among patients with GPP, JDA severity index generally decreased and improvements in GIS were sustained to week 144. Serious TEAEs were observed in 2/10 patients with GPP and 5/11 with EP; BKZ was well tolerated with low incidence of TEAEs leading to study discontinuation (2 GPP, 1 EP).
Long-term BKZ treatment over 3 years improved signs and symptoms of GPP and EP; these were sustained through week 144. No new safety signals were identified.
ClinicalTrials.gov identifier, NCT03598790.
本研究旨在报告比美吉珠单抗(BKZ)在日本泛发性脓疱型银屑病(GPP)和红皮病型银屑病(EP)患者中的疗效和安全性。
年龄≥18岁的斑块状银屑病、GPP或EP患者接受BKZ治疗144周;本文仅报告GPP和EP的结果。所有患者在第0周每4周(Q4W)接受320mg BKZ治疗,在第16周和第48周根据研究者整体评估(IGA)0/1反应调整为Q4W或Q8W剂量。评估至第144周的疗效指标:IGA 0/1、皮肤病生活质量指数(DLQI)0/1、临床总体印象改善(CGI-I)、银屑病面积和严重程度指数(PASI)较基线改善≥75/90/100%、改良甲银屑病严重程度指数(mNAPSI)较基线改善≥75/90/100%,以及患者报告的结局;GPP特异性指标:日本皮肤病协会(JDA)严重程度指数和总体改善评分(GIS)。通过第0至144周评估治疗中出现的不良事件(TEAE)并进行安全性随访。
在第144周,大多数GPP患者(8/10)和EP患者(10/11)完成了研究。在第16周,所有患者报告BKZ治疗使疗效指标得到改善,且通常持续至第144周。在第144周(1例GPP患者失访),7例GPP患者中的6例和10例EP患者中的8例达到IGA 0/1;7例中的5例和10例中的9例达到DLQI 0/1;7例中的7例和10例中的9例达到CGI-I反应(“改善”/“缓解”);7例中的6例和10例中的9例分别达到PASI 90;5例GPP患者中的2例和9例EP患者中的4例在第144周达到mNAPSI 100。在GPP患者中,JDA严重程度指数总体下降,GIS改善持续至第144周。2/10例GPP患者和5/11例EP患者观察到严重TEAE;BKZ耐受性良好,导致研究停药的TEAE发生率较低(2例GPP,1例EP)。
超过3年的长期BKZ治疗改善了GPP和EP的体征和症状;这些改善持续至第144周。未发现新的安全信号。
ClinicalTrials.gov标识符,NCT03598790。