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New companies are developing biosimilar insulins (BI) as patents expire. Manufacturing differences may arise, raising questions about clinical relevance and biological effects of these novel insulin products.

Keywords:
biosimilar insulininsulin analogsinsulin antibodiesinsulin formulationsinsulin glargineinsulin therapy

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Area of Science:

  • Biotechnology
  • Pharmaceutical Sciences
  • Endocrinology

Background:

  • The insulin market has been dominated by a few multinational corporations.
  • Emerging companies are utilizing modern biotechnology for insulin production.
  • Expiring patents on originator insulins create opportunities for biosimilar market entry.

Purpose of the Study:

  • To introduce and discuss fundamental aspects of biosimilar insulins (BI).
  • To address the potential clinical relevance of manufacturing differences in BI.
  • To explore the biological effects of subtle structural and purity variations in BI.

Main Methods:

  • Review of manufacturing processes for originator and biosimilar insulins.
  • Analysis of potential structural and purity differences.
  • Discussion of clinical relevance and biological impact assessments.

Main Results:

  • Manufacturing processes, while aiming for similarity, are not identical.
  • Subtle differences in insulin structure and purity are possible.
  • The clinical relevance of these differences requires careful evaluation.

Conclusions:

  • Biosimilar insulins (BI) present a growing area in the pharmaceutical market.
  • Understanding manufacturing variations is crucial for BI approval and use.
  • Further research is needed to confirm the clinical equivalence and safety of BI.