Real-World Study of Adjuvant Biosimilar Trastuzumab-dkst for HER2-Positive Breast Cancer Treatment in a Brazilian Population.

IF 3.2 Q2 ONCOLOGY
Oncology and Therapy Pub Date : 2024-09-01 Epub Date: 2024-06-05 DOI:10.1007/s40487-024-00284-5
Debora Gagliato, Tomás Reinert, Cláudio Rocha, Monique Tavares, Sâmio Pimentel, William Fuzita, Márcia Araújo, Danielli Matias, Sabina Aleixo, Bruno França, Érida Magaton, Natália Brito, Ana Carolina Cardoso, Vivienne Castilho
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引用次数: 0

Abstract

Introduction: Biological monoclonal antibodies play a pivotal role in cancer treatment, with biosimilars significantly enhancing their accessibility. In Brazil's ethnically diverse setting, real-world evidence is crucial for assessing the effectiveness and applicability of these therapies in routine clinical practice.

Methods: We performed a multicentric, observational, prospective real-world study on biosimilar trastuzumab-dkst for adjuvant treatment of early HER2-positive breast cancer in Brazilian patients. Data were collected using a case-report form.

Results: Of the 176 recruited, we present data from the first 59 patients (mean age 51.7 ± 12.9 years) who had completed treatment with trastuzumab-dkst. The mean time from diagnosis to the first adjuvant treatment with trastuzumab-dkst was 5.5 ± 2.7 months. Of the patients, 59% of patients achieved at least a 30-month follow-up. The 31.7-month invasive disease-free survival rate (IDFS) was 94.5% (95% CI 83.9-98.2%) and median IDFS was not achieved, since only three patients had invasive disease recurrence. The overall survival rate was 100% until the last assessment. The observed adverse events were similar to those presented by other studies using biosimilar or reference trastuzumab. Four serious adverse events (8.5%) were observed. A reduction in left ventricular ejection fraction of at least 10% was observed in 16.9% of participants. There was no treatment interruption, and three participants (5.1%) had their trastuzumab-dkst dose reduced.

Conclusion: Our study reinforces the existing pivotal data, underscoring the real-world efficacy and safety of biosimilar trastuzumab-dkst in the adjuvant treatment for early HER2-positive breast cancer. The preliminary long-term effectiveness and safety data we present further validate trastuzumab-dkst's role as a cost-saving alternative in oncological care. These findings have important implications for improving patient access to crucial treatments and for the more efficient use of healthcare resources.

Clinicaltrials:

Gov registration: NCT03892655.

在巴西人群中开展曲妥珠单抗-dkst 用于 HER2 阳性乳腺癌辅助治疗的生物仿制药真实世界研究。
导言:生物单克隆抗体在癌症治疗中起着举足轻重的作用,生物仿制药大大提高了其可及性。在巴西的多元种族环境中,真实世界的证据对于评估这些疗法在常规临床实践中的有效性和适用性至关重要:我们对巴西患者使用生物仿制药曲妥珠单抗-dkst辅助治疗早期HER2阳性乳腺癌进行了一项多中心、观察性、前瞻性真实世界研究。研究使用病例报告表收集数据:在招募的 176 名患者中,我们提供了首批完成曲妥珠单抗-dkst 治疗的 59 名患者(平均年龄为 51.7 ± 12.9 岁)的数据。从确诊到首次接受曲妥珠单抗-dkst辅助治疗的平均时间为(5.5±2.7)个月。59%的患者接受了至少30个月的随访。31.7个月的无侵袭性疾病生存率(IDFS)为94.5%(95% CI 83.9-98.2%),由于只有3名患者出现侵袭性疾病复发,因此未达到中位IDFS。截至最后一次评估,总生存率为100%。观察到的不良事件与其他使用生物仿制药或参考曲妥珠单抗的研究相似。共观察到四例严重不良事件(8.5%)。16.9%的参与者左心室射血分数下降至少10%。没有出现治疗中断,3名参与者(5.1%)减少了曲妥珠单抗-dkst的剂量:我们的研究加强了现有的关键数据,强调了生物仿制药曲妥珠单抗-dkst在早期HER2阳性乳腺癌辅助治疗中的实际疗效和安全性。我们提供的初步长期有效性和安全性数据进一步验证了曲妥珠单抗-dkst在肿瘤治疗中作为节约成本的替代药物的作用。这些发现对于改善患者获得关键治疗的机会以及更有效地利用医疗资源具有重要意义:Gov 注册:NCT03892655。
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来源期刊
CiteScore
3.40
自引率
0.00%
发文量
31
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. Submissions are welcomed whether they relate to an international and/or a country-specific audience, something that is crucially important when researchers are trying to target more specific patient populations. This inclusive approach allows the journal to assist in the dissemination of all scientifically and ethically sound research. Rapid Publication The journal’s rapid publication timelines aim for a peer review decision within 2 weeks of submission. If an article is accepted it will be published online 3-4 weeks from acceptance. These rapid timelines are achieved through the combination of a dedicated in-house editorial team, who closely manage article workflow, and an extensive Editorial and Advisory Board who assist with rapid peer review. This allows the journal to support the rapid dissemination of research, whilst still providing robust peer review. Combined with the journal’s open access model this allows for the rapid and efficient communication of the latest research and reviews, allowing the advancement of clinical therapies. Personal Service The journal’s dedicated in-house editorial team offer a personal “concierge service” meaning that authors will always have a personal point of contact able to update them on the status of their manuscript. The editorial team check all manuscripts to ensure that articles conform to the most recent COPE, GPP and ICMJE publishing guidelines. This supports the publication of ethically sound and transparent research. We also encourage pre-submission enquiries and are always happy to provide a confidential assessment of manuscripts. Digital features and plain language summaries Oncology and Therapy offers a range of additional features designed to increase the visibility, readership and educational value of the journal’s content. Each article is accompanied by key summary points, giving a time-efficient overview of the content to a wide readership. Articles may be accompanied by plain language summaries to assist readers who have some knowledge of, but not in-depth expertise in, the area to understand the scientific content and overall implications of the article. The journal also provides the option to include various types of digital features including animated abstracts, video abstracts, slide decks, audio slides, instructional videos, infographics, podcasts and animations. All additional features are peer reviewed to the same high standard as the article itself. If you consider that your paper would benefit from the inclusion of a digital feature, please let us know. Our editorial team are able to create high-quality slide decks and infographics in-house, and video abstracts through our partner Research Square, and would be happy to assist in any way we can. For further information about digital features, please contact the journal editor (see ‘Contact the Journal’ for email address), and see the ‘Guidelines for digital features and plain language summaries’ document under ‘Submission guidelines’. Preprints We encourage posting of preprints of primary research manuscripts on preprint servers, authors'' or institutional websites, and open communications between researchers whether on community preprint servers or preprint commenting platforms. Posting of preprints is not considered prior publication and will not jeopardize consideration in our journals. Please see here for further information on preprint sharing: https://www.springer.com/gp/authors-editors/journal-author/journal-author-helpdesk/submission/1302#c16721550 Peer Review Process Upon submission, manuscripts are assessed by the editorial team to ensure they fit within the aims and scope of the journal and are also checked for plagiarism. All suitable submissions are then subject to a comprehensive single-blind peer review. Reviewers are selected based on their relevant expertise and publication history in the subject area. The journal has an extensive pool of editorial and advisory board members who have been selected to assist with peer review based on the afore-mentioned criteria. At least two extensive reviews are required to make the editorial decision, with the exception of some article types such as Commentaries, Editorials and Letters which are generally reviewed by one member of the Editorial Board. Where reviewer recommendations are conflicted, the editorial board will be contacted for further advice and a presiding decision. Manuscripts are then either accepted, rejected or authors are required to make major or minor revisions (both reviewer comments and editorial comments may need to be addressed). Once a revised manuscript is re-submitted, it is assessed along with the responses to reviewer comments and if it has been adequately revised it will be accepted for publication. Accepted manuscripts are then copyedited and typeset by the production team before online publication. Appeals against decisions following peer review are considered on a case by case basis and should be sent to the journal editor. Copyright Oncology and Therapy''s content is published open access under the Creative Commons Attribution-Noncommercial License, which allows users to read, copy, distribute, and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited. The author assigns the exclusive right to any commercial use of the article to Springer. For more information about the Creative Commons Attribution-Noncommercial License, click here: http://creativecommons.org/licenses/by-nc/4.0 Publication Fees Upon acceptance of an article, authors will be required to pay the mandatory Rapid Service Fee of £3650/€4500/$5100. The journal will consider fee discounts for developing countries and this is decided on a case by case basis. Open Access All articles published by Oncology and Therapy are published open access Contact For more information about the journal, including pre-submission enquiries, please contact managing editor Lydia Alborn at lydia.alborn@springer.com.
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