HER2+转移性乳腺癌患者一线帕妥珠单抗和曲妥珠单抗治疗的现实世界治疗模式和结果

IF 3.2 Q2 ONCOLOGY

Oncology and Therapy Pub Date : 2023-12-01 Epub Date: 2023-09-16 DOI:10.1007/s40487-023-00241-8

Sandhya Mehta, Jipan Xie, Raluca Ionescu-Ittu, Xiaoyu Nie, Winghan J Kwong

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引用次数: 0

摘要

简介:许多人表皮生长因子受体-2阳性转移性乳腺癌(HER2+ mBC)患者在一线(1L)接受帕妥珠单抗和曲妥珠单抗为基础的方案治疗后，需要后续的治疗(lot)。虽然二线(2L)治疗的有效性已在临床试验中得到证实，但这些治疗的实际有效性尚未得到充分研究。这项回顾性队列研究评估了2015-2019年美国(US)以帕妥珠单抗和曲妥珠单抗为基础的方案进行1L治疗后HER2+ mBC患者的现实世界治疗模式和结果。方法:从IQVIA肿瘤学电子病历数据库中确定在2015年1月1日至2019年9月30日期间开始使用1L帕妥珠单抗和曲妥珠单抗为基础的方案的美国HER2+ mBC成人，并在1L开始后随访≥60天。描述了在1L的帕妥珠单抗和基于曲妥珠单抗的方案后2L中使用的方案。根据Kaplan-Meier分析，报告了2L的中位治疗持续时间和治疗失败时间。结果:在2011年接受帕妥珠单抗和曲妥珠单抗为基础的方案的710例符合条件的患者中(中位年龄:57.0岁[四分位数范围:48.0-65.0];中位随访:20.3个月;中位1L持续时间:15.3个月)，222例(31.3%)开始2L治疗。2L患者中最常见的方案是基于阿多曲珠单抗emtansine (T-DM1)的方案(n = 159[71.6%])，其次是基于拉帕替尼的方案(n = 21[9.5%])和基于奈拉替尼的方案(n = 18[8.1%])。接受2L T-DM1治疗的患者中位疗程和治疗失败时间分别为5.9 (95% CI: 5.0, 8.7)和8.6(7.3,11.5)个月，接受2L T-DM1治疗的患者中位疗程和治疗失败时间分别为5.7(4.7,7.8)和7.9(6.5,10.0)个月。结论:2015-2019年期间，大多数HER2+ mBC患者在接受1L帕妥珠单抗和曲妥珠单抗治疗后需要额外治疗，使用T-DM1。较短的中位治疗持续时间和治疗失败的时间突出了最近批准的治疗方案可能满足的未满足需求。

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Real-World Treatment Patterns and Outcomes Following First-Line Pertuzumab and Trastuzumab Among Patients with HER2+ Metastatic Breast Cancer.

Introduction: Many patients with human epidermal growth factor receptor-2-positive metastatic breast cancer (HER2+ mBC) require subsequent lines of therapy (LOTs) after being treated with pertuzumab and trastuzumab-based regimens in the first line (1L). Although the efficacy of the second-line (2L) therapies has been demonstrated in clinical trials, the real-world effectiveness of these treatments is understudied. This retrospective cohort study assessed the real-world treatment patterns and outcomes for patients with HER2+ mBC following 1L therapy with pertuzumab and trastuzumab-based regimens in the United States (US) during 2015-2019.

Methods: Adults with HER2+ mBC in the US who initiated 1L pertuzumab and trastuzumab-based regimens between 01/01/2015 and 09/30/2019 and had ≥ 60 days of follow-up after 1L initiation were identified from the IQVIA Oncology Electronic Medical Records database. The regimens utilized in 2L following 1L pertuzumab and trastuzumab-based regimens were described. Median treatment duration and time to treatment failure were reported for 2L based on Kaplan-Meier analyses.

Results: Of the 710 eligible patients who received pertuzumab and trastuzumab-based regimens in 1L (median age: 57.0 years [interquartile range: 48.0-65.0]; median follow-up: 20.3 months; median 1L duration: 15.3 months), 222 (31.3%) initiated 2L. The most common regimens in 2L were ado-trastuzumab emtansine (T-DM1)-based regimens (n = 159 [71.6%]), followed by lapatinib-based (n = 21 [9.5%]) and neratinib-based (n = 18 [8.1%]) regimens. The median treatment duration and time to treatment failure were 5.9 (95% CI: 5.0, 8.7) and 8.6 (7.3, 11.5) months, respectively, among patients initiating 2L, and 5.7 (4.7, 7.8) and 7.9 (6.5, 10.0) months among those receiving 2L T-DM1.

Conclusions: Most patients with HER2+ mBC requiring additional treatments after 1L pertuzumab and trastuzumab-based regimens utilized T-DM1 in 2L during 2015-2019. The short median treatment duration and time to treatment failure highlight an unmet need that can potentially be fulfilled by recently approved treatment options.

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来源期刊

Oncology and Therapy ONCOLOGY-

CiteScore

3.40

自引率

0.00%

发文量

审稿时长

6 weeks

期刊介绍： Now indexed in PubMed Aims and Scope Oncology and Therapy is an international, peer reviewed, rapid-publication (peer review in 2 weeks, published 3–4 weeks from acceptance) journal dedicated to the publication of high-quality pre-clinical, clinical (all phases), observational, real-world, and health outcomes research around the discovery, development, and use of therapeutics and interventions (including devices) across all therapeutic areas. Studies relating to diagnostics and diagnosis, pharmacoeconomics, public health, epidemiology, quality of life, and patient care, management, and education are also encouraged. The journal is of interest to a broad audience of healthcare professionals and publishes original research, reviews, communications and letters. The journal is read by a global audience and receives submissions from all over the world. Oncology and Therapy will consider all scientifically sound research be it positive, confirmatory or negative data. 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