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Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
Published on: January 7, 2019
Regulatory aspects of oncolytic virus products
Teruhide Yamaguchi1, Eriko Uchida
1Division of Biological Chemistry and Biologicals, The National Institute of Health Sciences, Kamiyoga 1-18-1, Setagaya, Tokyo, 158-8501, Japan. yamaguch@nihs.go.jp
Abstract:
Many types of oncolytic viruses, wild-type virus, attenuated viruses and genetically-modified viruses, have been developed as an innovative cancer therapy. The strategies, nature, and technologies of oncolytic virus products are different from the conventional gene therapy products or cancer therapy products. From the regulatory aspects to ensure the safety, efficacy and quality of oncolytic viruses, there are several major points during the development, manufacturing, characterization, non-clinical study and clinical study of oncolytic viruses. The major issues include 1) virus design (wild-type, attenuated, and genetically engineered strains), 2) poof of concept in development of oncolytic virus products, 3) selectivity of oncolytic virus replication and targeting to cancer cells, 4) relevant animal models in non-clinical studies, 5) clinical safety, 6) evaluation of virus shedding. Until now, the accumulation of the information about oncolytic viruses is not enough, it may require the unique approach to ensure the safety and the development of new technology to characterize oncolytic viruses.
Insights
Oncolytic viruses offer innovative cancer therapy, but their unique development, manufacturing, and clinical study present distinct regulatory challenges. Ensuring safety and efficacy requires specialized approaches and advanced characterization technologies.
Area of Science:
- Oncology
- Virology
- Biotechnology
- Regulatory Science
Background:
- Oncolytic viruses represent an innovative approach to cancer therapy, encompassing wild-type, attenuated, and genetically modified strains.
- These viral agents possess distinct strategies, natures, and technologies compared to traditional gene or cancer therapies.
- Regulatory oversight is crucial for ensuring the safety, efficacy, and quality of oncolytic virus products.
Purpose of the Study:
- To outline key considerations and challenges in the development, manufacturing, and clinical application of oncolytic viruses.
- To highlight regulatory aspects critical for oncolytic virus product approval.
- To identify areas requiring further research and technological advancement for oncolytic virus characterization and safety assurance.
Main Methods:
- Review of current strategies in oncolytic virus design, including wild-type, attenuated, and genetically engineered strains.
- Analysis of critical points in the development pipeline: proof of concept, manufacturing, characterization, non-clinical, and clinical studies.
- Examination of specific issues such as virus selectivity, animal model relevance, clinical safety, and virus shedding evaluation.
Main Results:
- Oncolytic virus development involves unique challenges distinct from conventional therapies.
- Key issues span virus design, proof of concept, target selectivity, animal models, clinical safety, and shedding evaluation.
- Current knowledge is insufficient, necessitating unique safety approaches and novel characterization technologies.
Conclusions:
- The development of oncolytic viruses requires careful consideration of specific design, preclinical, and clinical factors.
- Ensuring the safety and efficacy of these novel therapeutics necessitates unique regulatory strategies and advanced characterization methods.
- Further research and technological innovation are essential to fully realize the potential of oncolytic virus therapy.
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