Role of in silico genotoxicity tools in the regulatory assessment of pharmaceutical impurities.
SAR QSAR Environ Res
; 23(3-4): 257-77, 2012.
Article
en En
| MEDLINE
| ID: mdl-22369620
ABSTRACT
The toxicological assessment of genotoxic impurities is important in the regulatory framework for pharmaceuticals. In this context, the application of promising computational methods (e.g. Quantitative Structure-Activity Relationships (QSARs), Structure-Activity Relationships (SARs) and/or expert systems) for the evaluation of genotoxicity is needed, especially when very limited information on impurities is available. To gain an overview of how computational methods are used internationally in the regulatory assessment of pharmaceutical impurities, the current regulatory documents were reviewed. The software recommended in the guidelines (e.g. MCASE, MC4PC, Derek for Windows) or used practically by various regulatory agencies (e.g. US Food and Drug Administration, US and Danish Environmental Protection Agencies), as well as other existing programs were analysed. Both statistically based and knowledge-based (expert system) tools were analysed. The overall conclusions on the available in silico tools for genotoxicity and carcinogenicity prediction are quite optimistic, and the regulatory application of QSAR methods is constantly growing. For regulatory purposes, it is recommended that predictions of genotoxicity/carcinogenicity should be based on a battery of models, combining high-sensitivity models (low rate of false negatives) with high-specificity ones (low rate of false positives) and in vitro assays in an integrated manner.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Contaminación de Medicamentos
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Medición de Riesgo
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Pruebas de Mutagenicidad
Tipo de estudio:
Etiology_studies
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Evaluation_studies
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Guideline
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Prognostic_studies
Idioma:
En
Año:
2012
Tipo del documento:
Article