日前,诺华在2023年美国临床肿瘤学会(ASCO)年会上公布了NATALEE III期关键性试验的阳性主要终点结果。数据显示,与单独使用内分泌治疗(ET)相比,凯丽隆®(琥珀酸瑞波西利片)联合内分泌治疗,显著降低了II期和III期激素受体(HR)阳性、人表皮生长因子受体 2(HER2)阴性的早期乳腺癌症患者的肿瘤复发风险达到25.2%(HR=0.748; 95% CI: 0.618, 0.906; p=0.0014);同时,具有临床意义的无浸润性疾病生存期(iDFS)在所有预设的关键亚组中均显示了获益(详见下表)1。 凯丽隆®在各预设亚组中显示的iDFS 获益1 凯丽隆®在所有次要疗效终点的数据结果也显示出了一致性,包括无远处转移生存期(风险降低了26%)和无复发生存期(风险降低了28%),总生存期也有改善的趋势(HR=0.759; 95% CI: 0.539, 1.068)*1。 凯丽隆®400 毫克的给药方案在受试者人群中显示了良好的安全性,症状性不良事件(AE)发生率低,治疗三年内对剂量调整的需求有限。最常报告的特别关注的AE(3级或更高)包括中性粒细胞减少(43.8%)以及与肝脏相关的AE(如转氨酶升高)(8.3%)。QT间期延长及腹泻(3级或以上)AE的发生率较低,分别为1.0%和0.6%1。 加州大学洛杉矶分校琼森综合癌症中心临床/转化研究主任、肿瘤转化研究(TRIO)主席兼执行董事、NATALEE研究的牵头研究者Dennis J.Slamon博士表示: 这些里程碑式的结果将从根本上改变II期和III期HR+/HER2-早期乳腺癌患者的治疗模式。这些患者需要新的、耐受性良好的治疗选择以防止其癌症复发。在如此广泛的患者群体中解决这一未被满足的需求有助于简化医疗机构的治疗决策程序,并在不影响其日常生活的情况下让更多处于复发风险中的患者保持无癌状态。 诺华全球药品开发负责人兼首席医学官、医学博士Shreeram Aradhye表示: 鉴于三分之一的II期患者和一半以上的III期患者都将不幸经历癌症复发,对于HR+/HER2-早期乳腺癌确诊患者而言仍存在癌症复发风险。NATALEE研究获得的令人信服的数据结果突显了凯丽隆®在降低包括淋巴结阴性患者在内的早期乳腺癌患者复发风险的潜力,同时也证明了其良好的安全性;这些有望改变当前临床实践的NATALEE研究结果将会巩固凯丽隆®作为HR+/HER2-转移性乳腺癌已经获得公认的独特治疗地位。
美国乳腺癌联盟主席、NATALEE研究指导委员会成员Fran Visco表示:
一旦被确诊患有早期乳腺癌,患者一生都在担心癌症会复发。美国乳腺癌联盟一直在与业界和科学家合作寻求能够确保不会出现复发的治疗方法。让受过疾病教育的患者倡导群体能参与研究的所有阶段、特别是临床试验的设计和实施,对于确保患者能够获得有意义的治疗选择至关重要。我们感谢诺华为我们合作参与NATALEE研究各项工作所给予的大力支持。
诺华计划在年底前向美国和欧洲的监管机构递交III期研究的结果数据。
关于 NATALEE研究
NATALEE是一项与肿瘤转化研究(TRIO)1团队合作开展的全球III期多中心、随机、开放标签试验,旨在评估瑞波西利联合ET相较于ET辅助治疗HR+/HER2-EBC患者的疗效和安全性。两个治疗组的辅助内分泌治疗均为非甾体芳香化酶抑制剂(NSAI;阿那曲唑或来曲唑)和戈舍瑞林(如适用)。NATALEE研究的主要终点是iDFS【参考疗效终点标准化定义(STEEP)的标准】;来自20个国家/地区5101例HR+/HER2- 早期乳腺癌成年患者随机入组到NATALEE试验中1。
研究结果表明,与单独使用ET相比,凯丽隆®联合ET可将癌症复发风险降低25.2% (HR=0.748; 95% CI: 0.618, 0.906; p=0.0014);此外在所有预设的关键亚组中iDFS均呈现有临床意义的改善:AJCC II期(HR=0.761; 95% CI: 0.525, 1.103)、AJCC III期(HR=0.740; 95% CI: 0.592, 0.925),、淋巴结阴性(HR=0.630; 95% CI: 0.341, 1.165)、淋巴结阳性(HR=0.771; 95% CI: 0.630, 0.944)、绝经前女性和男性(HR=0.722; 95% CI: 0.530, 0.983)、绝经后女性(HR=0.781; 95% CI: 0.613, 0.997)1。凯丽隆®在所有次要疗效终点方面也显示出数据的一致性,包括无远处转移生存期(风险降低了26%)和无复发生存期(风险降低了28%),且总生存期有改善的趋势(HR=0.759; 95% CI: 0.539, 1.068)*1。
研究随访的中位持续时间为34个月(21-48个月),大约两年后可观察到临床获益1。NATALEE研究中凯丽隆®的起始剂量(400 毫克)低于批准用于治疗转移性乳腺癌症的剂量(600 毫克),目的是在不影响疗效的情况下尽量减少对患者生活质量的干扰。在400 毫克的给药方案下, 凯丽隆®的安全性良好,症状性不良事件(AE)发生率低,给药三年内对剂量调整的需求有限1。最常报告的特别关注AE(3级或更高)包括中性粒细胞减少(43.8%)以及肝脏相关的AE(如转氨酶升高)(8.3%)1。QT间期延长及腹泻(3级或以上)AE的发生率较低1,分别为1.0%和0.6%。
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关于早期乳腺癌
超过90%的乳腺癌确诊患者为早期乳腺癌(EBC)患者3,4。尽管有标准的辅助治疗,但大约三分之一的II期患者和一半以上的III期HR+/HER2-EBC患者都会经历肿瘤复发3,5。乳腺癌的复发风险会一直持续几十年,超过一半的乳腺癌在诊断后五年或五年以上就会复发,3,6这些患者中的很多人,除了标准化疗和内分泌治疗之外,目前没有靶向治疗选择7。
关于凯丽隆®(琥珀酸瑞波西利片)
瑞波西利在三项III期试验中持续表明总生存获益,同时保持或改善了生活质量8-19。2023年1月发布的NCCN指南®更新版推荐瑞波西利作为可联合AI的唯一1类首选CDK4/6抑制剂,用于HR+/HER2-MBC患者的一线治疗20。此外,瑞波西利是ESMO临床获益量表中得分最高的CDK4/6抑制剂,在HR+/HER2-晚期乳腺癌的一线绝经前患者中得到满分(五分)21。同时,相比其他CDK4/6抑制剂,瑞波西利联合来曲唑或氟维司群在接受HR+/HER2晚期乳腺癌一线治疗的绝经后患者中得到四分22。
凯丽隆®已在全球100个国家和地区获得批准,包括美国食品药品监督管理局、欧盟委员会和中国。在美国,凯丽隆®被批准用于治疗HR+/HER2-晚期或转移性乳腺癌成年患者,可联合AI作为初始ET或氟维司群作为初始ET,或在绝经后女性或男性疾病进展后使用。在欧盟,凯丽隆®被批准用于治疗HR+/HER2-晚期或转移性乳腺癌女性,可联合AI或氟维司群作为初始ET,或在疾病进展后使用。在绝经前或围绝经期女性中,ET应联合黄体生成素释放激素19。目前,凯丽隆®是中国首个且目前唯一一款在晚期乳腺癌一线治疗领域覆盖绝经前/围绝经期、绝经后人群的CDK4/6抑制剂,为广大患者获得更长生存获益和更好生活质量带来希望。
关于诺华中国
诺华公司中文名取意“承诺中华”,即通过不断创新的产品和服务,提高中国人民的健康水平和生活质量。自1987年以来,诺华已有近100款创新药及新适应症在华获批。诺华在中国的业务包括诺华创新药物(中国)与山德士(中国),并在北京、上海和江苏设立了研发机构。诺华在中国拥有超过8000名员工。如需更多信息,敬请访问诺华中文网站:www.novartis.com.cn。
Reference
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19. Kisqali (ribociclib) Prescribing Information.
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*Ibrance® is a registered trademark of Pfizer, Inc.
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Disclaimers
1.*iDFS初步分析时基于预先设定的总生存期中期分析得出的结果;计划进行额外的随访,以获得更成熟的总生存数据。
2.本文提及的相关适应症尚未在中国获批。
3.本资料目的在于提供疾病领域的相关知识、提高疾病认知的水平、非广告用途。本资料中涉及的信息仅供参考,请遵从医生或其他医疗卫生专业人士的意见或指导。