2020
DOI: 10.1007/s11523-020-00742-w
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Biologic Drug Quality Assurance to Optimize HER2 + Breast Cancer Treatment: Insights from Development of the Trastuzumab Biosimilar SB3

Abstract: SB3 is a biosimilar of trastuzumab that has been approved for use in the treatment of human epidermal growth factor 2-positive breast cancer and human epidermal growth factor 2-positive gastric cancer. Antibody-dependent cellular cytotoxicity is one of several critical quality attributes of trastuzumab. Data from the development of SB3 support the hypothesis of a relationship between antibody-dependent cellular cytotoxicity activity and clinical outcomes in terms of the response rate and long-term survival. Cu… Show more

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Cited by 13 publications
(13 citation statements)
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References 39 publications
(119 reference statements)
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“…Different versions of the originator products have been interchangeably used by both definitions-both clinically and at the pharmacy level-usually unconsciously; and based on less substantiated data than are required for a biosimilar. They are expected to have no clinically meaningful impact, and only rarely have done so [37,38]. Similarly, experience with naïve patients and patients already established on a biologic who are switched to another product (reference biologic or any biosimilar to that reference) has also shown no change in clinical outcomes [39][40][41][42][43][44][45].…”
Section: Discussionmentioning
confidence: 99%
“…Different versions of the originator products have been interchangeably used by both definitions-both clinically and at the pharmacy level-usually unconsciously; and based on less substantiated data than are required for a biosimilar. They are expected to have no clinically meaningful impact, and only rarely have done so [37,38]. Similarly, experience with naïve patients and patients already established on a biologic who are switched to another product (reference biologic or any biosimilar to that reference) has also shown no change in clinical outcomes [39][40][41][42][43][44][45].…”
Section: Discussionmentioning
confidence: 99%
“…Since the first trastuzumab biosimilars launched in Europe in 2018 a total of six trastuzumab biosimilars have been approved by the EMA (as of May 2021) [45]. In terms of clinical development, there were some differences in clinical study design across Phase III trials of different trastuzumab biosimilars.…”
Section: The Launch Of Oncology Biosimilars and Their Economic Impactmentioning
confidence: 99%
“…17,24,29,30 Trastuzumab referans ürününün patentleri Avrupa Birliği (AB) ve ABD'de (sırasıyla 2014 ve 2019) kısa süre önce sona ermiştir. [31][32][33] Bunla birlikte alternatif olarak firmalar biyobenzer ilaç geliştirme çalışmalarını hızlandırmışlardır.34 Meme kanseri için insan epidermal büyüme faktörü reseptörü 2 (HER2) pozitifliği yüksek dereceli histoloji, lenf nodu tutulumu, daha yüksek hastalık nüksetmesi ve mortalite oranları ile ilişkisi nedeniyle kötü prognoz çerçevesi oluşturmaktadır.3 5 Meme kanserine karşı bir monoklonal antikor olan trastuzumab (Herceptin Roche / Genentech GmbH), bu hastalığın doğal seyrini değiştiren ve HER2 proteinini hedefleyen etkili bir ilaçtır. 5,35,36 Trastuzumab biyobenzerinin yanı sıra tedavide, tümör anjiyogenezini bloke edebilen bevacizumab(vasküler endotelyal büyüme faktörünü bağlayan bir monoklonal antikor -VEGF)da kulanılmaktadır.…”
Section: Biyobenzerlerin öNemiunclassified
“…37 Trastuzumab, SB3, kemoterapi ile neoadjuvan tedavi olarak uygulandığında ve adjuvan olarak devam ettiğinde tümör küçülmesi, nüks ve hayatta kalma açısından tedaviye faydalar sağlamaktadır ve adjuvan tedavi olarak uygulandığında 39 , insan epidermal büyüme faktörü reseptörü 2 (HER2) -pozitif erken evre meme kanseri için çok etkili olduğu görülmüştür. 31,40,41 Trastuzumab ve pertuzumab ile ikili blokaj afinitesinden faydalanarak HER2+ meme kanseri hastalarının tedavisinde kullanılmak için onaylanmıştır. [42][43][44] Yapılan simülasyonlarla, pertuzumab ve trastuzumab klinik sinerjizminin, kısmen HER2 üzerinde birlikte lokalize olduklarında iki antikor arasındaki işbirlikçi etkileşimlerden kaynaklanan bir afinitede etkisi ile blokaj yaptığı ileri sürülmüştür.…”
Section: Biyobenzerlerin öNemiunclassified