Response to the Opinion entitled ‘Biosimilars drug development: time for a paradigm shift?’

Abstract: The Opinion published in this issue of GaBI Journal titled ‘Biosimilars drug development: time for a paradigm shift?’ by Sandeep N Athalye, Shivani Mittra and Ankitkumar M Ranpur proposes a number of changes to the regulatory processes currently in place for biosimilars. This response letter considers the implications and consequences of these. Submitted: 8 December […]


Biosimilars drug development: time for a paradigm shift?

Author byline as per print journal: Sandeep N Athalye, MBBS, MD; Shivani Mittra, MPharm, PhD; Ankitkumar M Ranpura, MD Abstract: The sky-rocketing cost of developing biosimilars is becoming a shared deterrent for biosimilar developers. The regulatory requirements for biosimilars must see a natural evolution and a paradigm shift towards removing inefficiencies in clinical designs to […]


No need for systematic switch studies to demonstrate interchangeability of biosimilars

Abstract: Systematic clinical switch studies to demonstrate interchangeability of biosimilars are required in some jurisdictions while theoretical considerations and current clinical data question the feasibility and relevance of such studies. Submitted: 27 November 2021; Revised: 15 December 2021; Accepted: 15 December 2021; Published online first: 28 December 2021 Biosimilars have been used for 15 years […]


Protein heterogeneity and the immunogenicity of biotherapeutics

Abstract: High resolution analytical techniques reveal structural micro-heterogeneity within endogenous proteins, however, they are ‘seen’ as ‘self’ molecules by the immune system and immunological tolerance is established. In contrast the protein biotherapeutics are produced in non-human cells and multiple downstream protocols are employed in the isolation and purification of drug product; consequent micro-heterogeneities may be […]


Roundtable on biosimilars: pharmacovigilance, traceability, immunogenicity, 15 November 2016, Madrid, Spain

Author byline as per print journal: Professor Francisco José de Abajo, MD, MPH, PhD; Professor Joan Albanell, MD; Olga Delgado Sanchez, PharmD; Kevin Klein, MSc; José Vicente Moreno-Muelas, MD; Sol Ruiz, PhD; Professor Maria Jesús Sanz Ferrando, PhD; Robin Thorpe, PhD, FRCPath; Professor Francisco Zaragozá, PhD Introduction: Biosimilars can offer a lower-cost alternative to current biological therapies and could […]


First Turkish interactive workshop on regulation and approval of similar biotherapeutic products/biosimilars, 2–3 March 2016, Ankara, Turkey

Abstract: This paper discusses the findings and summary of items covered in the First Turkish interactive workshop on regulation and approval of similar biotherapeutic products/biosimilars, in which structure–function was highlighted as a key issue. Submitted: 4 June 2016; Revised: 7 September 2016; Accepted: 15 September 2016; Published online first: 28 September 2016 Introduction This interactive […]


Importance of manufacturing consistency of the glycosylated monoclonal antibody adalimumab (Humira®) and potential impact on the clinical use of biosimilars

Author byline as per print journal: Professor Paul J Declerck, PhD; Paul W Tebbey, PhD Abstract: The clinical performance of biological therapies is affected by their manufacturing processes. The advent of biosimilars increases the need to understand the clinical impact of potential differences versus originator products. This paper reviews important recently published technical data on […]


Health Canada’s perspective on the clinical development of biosimilars and related scientific and regulatory challenges

Abstract: Biologicals have offered a new avenue for targeting therapy to treat life-threatening and chronic diseases. The recent or pending patent expirations of many successful biologicals have permitted the marketing of ‘copy’ versions of the off-patent biologicals, generally known as biosimilars (subsequent entry biologics in Canada). The reduced clinical package and the potential for extrapolation […]


Safety assessment of biosimilars in Europe: a regulatory perspective

Abstract: Clinical safety is important during the development of a biosimilar. This paper provides an overview of the main aspects related to the safety assessment of biosimilars. The European Medicines Agency’s ‘Guideline for similar biological medicinal products containing biotechnology-derived proteins as active substances: non-clinical and clinical issues’, which is currently under revision, forms the basis […]


Interchangeability. An insurmountable fifth hurdle?

Abstract: The arrival of biosimilars has led to considerable debate on how they can be used in clinical practice. A particular concern is related to the question of whether a biosimilar can be safely interchanged with the originator product or other biosimilars. Here we will discuss challenges to the regulatory approach for establishing interchangeability, in […]


Defining and characterizing non-biological complex drugs (NBCDs) – Is size enough? The case for liposomal doxorubicin generics (‘liposomal nanosimilars’) for injection

Abstract: ‘Non-binding recommendations’ from regulatory bodies are in place for evaluation and production of generic liposomal doxorubicin injection. However, how these nano-sized generics (‘nanosimilars’) should be characterized and evaluated, and particularly when the ‘reference listed product’ is no longer in production are among the major issues. We discuss these issues with respect to complexity of […]


Critical immunogenicity differences will be obscured by a common INN for biosimilars

Abstract: Information about variable immunogenicity arising from formulation differences between competing biosimilars is critical for informed judgments by prescribing physicians. Use of a common INN for biosimilars will obfuscate such differences to the detriment of patients. Submitted: 31 October 2013; Revised: 12 November 2013; Accepted: 13 November 2013; Published online first: 26 November 2013 Immunogenicity […]