Biosimilars/Research
Clinical evidence for interchangeability of biosimilars in the US
In the United States, the Food and Drug Administration (FDA) approval of a biosimilar is based on the ‘totality of the evidence’ from comparative analytical and functional assessments and comparative clinical (pharmacology, immunogenicity, safety and efficacy) assessments that support a conclusion of biosimilarity [1]. An approved biosimilar can also be designated as ‘interchangeable’ if it can be concluded that the biosimilar is expected to produce the ‘same clinical result as the reference product in any given patient’ and there is no increased risk in terms of safety or diminished efficacy associated with switching or alternating between the biosimilar and reference product (RP) [2]. With such designation, an interchangeable biosimilar could be substituted for its RP at the pharmacy level where state law allows [2].
How organizations worldwide are producing HTA reports for biosimilars
The vital contribution of Health Technology Assessment (HTA) is well recognized and consolidated in scientific and technological practice; however, there is still no generally accepted position on its utilization in relation to biosimilars.
Influence of local policy measures and practices on biosimilar/originator market dynamics in Germany
In Europe, the individual Member States are responsible for designing policies that regulate the market entry and use of pharmaceuticals. This decentralized approach has been found to contribute to variations in biosimilar uptake across countries, and even within countries, as was investigated for tumour necrosis factor-alfa (TNF-α) inhibitor biosimilars in Sweden [1, 2]. In Germany, biosimilar market shares are also known to vary at the regional level. This was studied by Blankart et al. for erythropoiesis-stimulating substances, filgrastim and somatropin, and variations in biosimilar market shares were partly attributed to the presence of explicit regional cost-control measures, such as quota regulations [3]. Differences in the uptake of biosimilars have also been described in Germany for the class of TNF-α inhibitors, although reasons behind this variable uptake have not been examined in detail [4].
Positive phase III results for sintilimab plus copy biological Byvasda
Chinese biopharmaceutical firm Innovent Biologics (Innovent) announced on 23 November 2020 positive results for its copy bevacizumab biological Byvasda (IBI-305) in combination with sintilimab.
More national guidance needed on biosimilars in Europe
A poster presented at the Virtual ISPOR (International Society for Pharmacoeconomics and Outcomes Research) 2020 conference outlines the importance of regulatory guidance on biosimilar medicines in Europe.
Phase I study comparing SB8 with reference bevacizumab
SB8, developed by Samsung Bioepis, was approved as a biosimilar of the reference product Avastin (bevacizumab) by the European Commission in August 2020 with the brand name of Aybintio [1]. The objective of this phase I study was to compare the pharmacokinetics, safety, tolerability and immunogenicity between SB8 and the European Union (EU) and United States (US) reference products (bevacizumab-EU and bevacizumab-US).
Scientific, legal and regulatory challenges facing biosimilars development
Abbreviated approval pathways for biosimilars – biological products that are highly similar to an originator biological with regard to quality, safety and efficacy [1, 2] – were created to foster competition and lower prices for biological treatments. However, these desired effects have not materialized as quickly as expected in either the US or the European Union.
Safety monitoring for immune-modulating biologicals
A study of adverse events among patients with autoimmune disease identifies numerous cases of serious infection. The study also demonstrates the ability of the Biologics and Biosimilars Collective Intelligence Consortium (BBCIC) to function as a surveillance platform [1].
Real-world data on biosimilars in inflammatory arthritis treatment
The use of biologicals in patients with rheumatic diseases has achieved the therapeutic target, i.e. remission or low disease activity. The share of biologicals has been growing with the approval of biosimilars, which have been recognized for their equivalent efficacy, safety, pharmacokinetics and immunogenicity to the originator, as well as their reduced economic burden.
Study reveals wide variation in US state drug product substitution laws
A new study, published in JAMA Internal Medicine [1], has revealed substantial variation in the drug product substitution rules for pharmacists across states in the US.
