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Samsung Bioepis Reports Long-term Ontruzant Findings for HER2-Positive Breast Cancer
The positive findings for the trastuzumab biosimilar Ontruzant in patients with human epidermal growth factor receptor 2 (HER2)–positive early or locally advanced breast cancer were presented at the European Society for Medical Oncology (ESMO) Congress 2021.
Samsung Bioepis reported results of what it called the longest follow-up study of patients with human epidermal growth factor receptor 2–positive early or locally advanced breast cancer treated with a trastuzumab biosimilar. The findings will be formally presented in poster form at the European Society for Medical Oncology (ESMO) Congress 2021.
Investigators said 5-year event-free survival rates in the phase 3 study were 82.8% in the biosimilar (Ontruzant) cohort and 79.7% in the reference trastuzumab (Herceptin) group.
Five-year overall survival rates were 93.1% and 86.7% for the biosimilar (HR 0.62; 95% CI, 0.32-1.22; P = .17) and originator drug cohorts, respectively.
Investigators reported 3 cases of asymptomatic significant left ventricular ejection fraction (LVEF) decrease (Ontruzant, n = 1). Each of these patients recovered with LVEF ≥ 50%. There were no cases of symptomatic congestive heart failure or cardiac death in either cohort.
Events of recurrence, progression and death were reported for 17.2% of patients in the biosimilar group (HR 0.78; 95% CI, 0.48-1.25; P = .30) and 21% in the reference cohort.
Patients in the biosimilar cohort (n = 186) and the reference group (n = 181) received 8 cycles of trastuzumab concurrently with chemotherapy in the neoadjuvant setting. After surgery, they received 10 cycles of trastuzumab over 1 year. Median follow-up duration was 68 months from the point of randomization.
Achieving PFS in Advanced Gastric Cancer With HLX02 Biosimilar, Chemotherapy
November 23rd 2024In a phase 2 study, the addition of HLX22, an anti-HER2 antibody, to HLX02 biosimilar and XELOX (oxaliplatin and capecitabine) chemotherapy extended progression-free survival (PFS) in untreated HER2-positive advanced gastric cancer patients.
Biosimilars Policy Roundup for September 2024—Podcast Edition
October 6th 2024On this episode of Not So Different, we discuss the FDA's approval of a new biosimilar for treating retinal conditions, which took place in September 2024 alongside other major industry developments, including ongoing legal disputes and broader trends in market dynamics and regulatory challenges.
Can Global Policies to Boost Biosimilar Adoption Work in the US?
November 17th 2024On this special episode of Not So Different honoring Global Biosimilars Week, Craig Burton, executive director of the Biosimilars Council, explores how global policies—from incentives to health equity strategies—could boost biosimilar adoption in the US.
Breaking Down Biosimilar Barriers: Interchangeability
November 14th 2024Part 3 of this series for Global Biosimilars Week, penned by Dracey Poore, director of biosimilars at Cardinal Health, explores the critical topic of interchangeability, examining its role in shaping biosimilar adoption and the broader implications for accessibility.
