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Developing oncology biosimilars: an essential approach for the future
1Director of Breast Oncology Program, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH.
Abstract:
The treatment of many diseases, particularly cancer, has been profoundly impacted by the introduction of biologic therapies (biologics), which are incorporated into the treatment algorithms of most oncology clinical practice guidelines. Biologics are large molecular weight, structurally complex proteins that are produced via complex manufacturing processes. With the patents of key biologics, including many widely used in oncology, set to expire in the near future, a number of pharmaceutical companies have focused on developing biosimilars. While the goal of development is to demonstrate that the biosimilar product is highly similar to the reference biologic product, biosimilars should not be viewed as "generic" biologics. Generic drugs are small chemical moieties that are identical to the patent-expired "reference" small-molecule drugs. It is not possible to produce an identical copy of a biologic, so the term "biosimilar" was chosen to define an appropriately similar biologic product. Improving patient access to cancer therapies such as biologics and reducing healthcare costs are key initiatives of the US Government; the integration of approved biosimilars into clinical practice will be instrumental in accomplishing these goals.
Insights
Biosimilars offer a promising avenue to increase patient access to vital biologic therapies, particularly in oncology. These advanced biologic drugs are designed to be highly similar to existing treatments, aiming to reduce healthcare costs.
Area of Science:
- Biotechnology
- Oncology
- Pharmaceutical Sciences
Background:
- Biologic therapies have transformed disease treatment, especially cancer, and are standard in oncology guidelines.
- Biologics are complex, large-molecule proteins manufactured through intricate processes.
- Patent expirations for key biologics are driving the development of biosimilars.
Purpose of the Study:
- To discuss the development and implications of biosimilars in oncology.
- To differentiate biosimilars from generic small-molecule drugs.
- To highlight the role of biosimilars in improving patient access and reducing healthcare costs.
Main Methods:
- Review of biologic therapy landscape in oncology.
- Analysis of biosimilar development principles.
- Examination of regulatory and economic factors influencing biosimilar adoption.
Main Results:
- Biosimilars are highly similar, not identical, to reference biologics due to inherent complexity.
- Biosimilars are distinct from generic drugs, which are identical small molecules.
- The development of biosimilars is a strategic response to expiring biologic patents.
Conclusions:
- Biosimilars are crucial for enhancing patient access to advanced cancer therapies.
- The integration of biosimilars is expected to significantly reduce healthcare expenditures.
- Understanding the unique nature of biosimilars is key for their successful clinical implementation.
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