Tapinarof Cream 1% Once Daily is Efficacious for the Treatment of Atopic Dermatitis in Patients with Skin of Color Down to 2 Years of Age in Two Pivotal Phase 3 Trials

Andrew F. Alexis, L. Kircik, Raj Chovatiya, Z. Rice, Tina Bhutani, P. Brown, Stephen C. Piscitelli, D. Rubenstein, A. Tallman, April W. Armstrong
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Abstract

Introduction: Patients with atopic dermatitis (AD) and skin of color can have heterogeneous presentations and treatment responses. In the pivotal phase 3 ADORING 1 and 2 trials, tapinarof cream 1% (VTAMA®, Dermavant Sciences, Inc.) once daily (QD) was significantly efficacious and well tolerated versus vehicle in adults and children down to 2 years of age with AD. Objective: Here, we report analyses of efficacy by skin color in ADORING 1 and 2, based on patients’ self-identified race and investigator-assessed Fitzpatrick skin type. Methods: In ADORING 1 and 2, patients with a Validated Investigator Global Assessment for Atopic DermatitisTM (vIGA-ADTM) score of ≥3, an Eczema Area and Severity Index score of ≥6, and body surface area involvement of 5–35% were randomized 2:1 to tapinarof cream or vehicle QD for 8 weeks. The primary efficacy endpoint was a vIGA-ADTM score of 0 (clear) or 1 (almost clear) and ≥2-grade improvement from baseline at Week 8. Secondary endpoints included proportion of patients with a ≥75% improvement in Eczema Area and Severity Index (EASI75). Results: Of the 407 and 406 randomized patients, 8.8–15.3% were Asian, 26.5–35.0% were Black, 44.8–56.8% were White, and 2.7–5.2% were Other groups (American Indian or Alaska Native, Native Hawaiian or Pacific Islander, or multiple races) across trials. Patients with Fitzpatrick skin types IV, V, and VI represented 23.8–25.1%, 20.6–22.2%, and 7.6–8.9%, respectively, of patients (>50% in both trials). Across trials, vIGA-ADTM responses (ranges) for tapinarof versus vehicle were: Asian, 39.5–48.9% vs 3.7–18.5%; Black, 43.1–47.0% vs 17.5–24.1%; White, 49.4–52.1% vs 12.2–14.5%; and Other, 26.0–44.8% vs 0.0–40.2%. EASI75 responses for tapinarof versus vehicle were: Asian, 47.6–76.6% vs 17.7–20.2%; Black, 48.9–55.3% vs 25.7–30.0%; White, 61.4–67.8% vs 19.6–20.7%; and Other, 38.3–63.3% vs 0.0–40.6%. Similarly, high and consistent vIGA-ADTM and EASI75 responses were reported with tapinarof versus vehicle in patients with Fitzpatrick skin types I–III and IV–VI. Conclusion: Tapinarof cream 1% QD was consistently efficacious among all racial groups and Fitzpatrick skin types in adults and children down to 2 years of age with AD, including patients with skin of color, who were highly represented in these trials.
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在两项关键性 3 期试验中,1% Tapinarof 乳霜每日一次可有效治疗 2 岁以下有色皮肤患者的特应性皮炎
简介:特应性皮炎(AD)患者和有色皮肤患者的表现和治疗反应各不相同。在关键的 3 期 ADORING 1 和 2 试验中,1% 塔替那罗乳膏(VTAMA®,Dermavant Sciences, Inc:在 ADORING 1 和 2 中,研究者对特应性皮炎全球评估(vIGA-ADTM)评分≥3 分、湿疹面积和严重程度指数评分≥6 分、体表面积受累程度为 5%-35% 的患者按 2:1 随机分配使用 tapinarof 乳膏或载体 QD,疗程为 8 周。主要疗效终点是第8周时vIGA-ADTM评分为0分(清晰)或1分(基本清晰),且比基线改善≥2级。次要终点包括湿疹面积和严重程度指数(EASI75)改善≥75%的患者比例:在407例和406例随机患者中,亚洲人占8.8%-15.3%,黑人占26.5%-35.0%,白人占44.8%-56.8%,其他群体(美国印第安人或阿拉斯加原住民、夏威夷原住民或太平洋岛民或多种种族)占2.7%-5.2%。菲茨帕特里克皮肤类型 IV、V 和 VI 患者分别占 23.8-25.1%、20.6-22.2% 和 7.6-8.9%(两项试验中均超过 50%)。在所有试验中,vIGA-ADTM 对 tapinarof 和载体的反应(范围)如下:亚裔,39.5-48.9% vs 3.7-18.5%;黑人,43.1-47.0% vs 17.5-24.1%;白人,49.4-52.1% vs 12.2-14.5%;其他,26.0-44.8% vs 0.0-40.2%。EASI75 对 tapinarof 与车辆的响应情况如下:亚裔,47.6-76.6% vs 17.7-20.2%;黑人,48.9-55.3% vs 25.7-30.0%;白人,61.4-67.8% vs 19.6-20.7%;其他,38.3-63.3% vs 0.0-40.6%。同样,在菲茨帕特里克皮肤类型 I-III 型和 IV-VI 型患者中,使用 Tapinarof 与使用载体相比,vIGA-ADTM 和 EASI75 反应高且一致:在所有种族群体和 Fitzpatrick 皮肤类型的成人和 2 岁以下儿童 AD 患者中,1% QD 塔匹那洛芙乳膏具有一致的疗效,包括有色皮肤患者,他们在这些试验中的比例很高。
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