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Updated: Jun 30, 2026

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A General Method for Detecting Nitrosamide Formation in the In Vitro Metabolism of Nitrosamines by Cytochrome P450s
Published on: September 25, 2017
New Approach Methodologies (NAMs) for Carcinogenicity Evaluation
Frederic Schorsch1, Mirjam Luijten2, Mark Cronin3
1Bayer SAS Crop Science Division, Sophia Antipolis, France.
Toxicologic Pathology
|June 29, 2026
Summary
New methods are being explored to evaluate carcinogenic risks, moving beyond traditional animal testing. These innovative approaches aim for more accurate and ethical carcinogenicity predictions in drug development and agrochemicals.
Area of Science:
- Toxicologic pathology
- Carcinogenicity assessment
- Drug development
Background:
- The standard two-year rodent cancer bioassay for agrochemicals faces ethical and scientific challenges.
- There is a growing need for alternative methods with reduced or no animal usage.
- Current methods for carcinogenicity evaluation require significant ethical and scientific debate.
Purpose of the Study:
- To explore innovative strategies for assessing carcinogenic risks.
- To discuss new approach methodologies (NAMs) for carcinogenicity evaluation.
- To improve the accuracy and reliability of carcinogenicity predictions.
Main Methods:
- Review of cutting-edge methodologies presented at the 2nd Joint BSTP/ESTP Toxicologic Pathology Congress.
- Discussion of alternative approaches to traditional rodent bioassays.
- Focus on methods applicable to drug development and agrochemicals.
Main Results:
- The session highlighted five key presentations on novel carcinogenicity assessment techniques.
- Exploration of methods aiming to reduce or replace animal testing.
- Emphasis on enhancing the predictive accuracy of carcinogenicity evaluations.
Conclusions:
- Innovative methodologies offer promising alternatives to traditional carcinogenicity testing.
- Advancements in toxicologic pathology are crucial for ethical and reliable risk assessment.
- The field is moving towards more predictive and animal-sparing approaches in carcinogenicity evaluation.
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