Prevention, ethics and science: lessons from Lorenzo Tomatis.

Area of Science:

• Toxicology and Carcinogenesis
• Epidemiology
• Public Health Policy

Background:

• This paper honors Lorenzo Tomatis, former director of the International Agency for Research on Cancer (IARC), a proponent of the precautionary principle in risk assessment.
• Tomatis advocated for careful consideration of both false negatives and false positives in evaluating toxicological and carcinogenic data.
• Current IARC Monographs guidelines emphasize data transparency and expert conflict of interest disclosure.

Discussion:

• The paper discusses Tomatis's view that dismissing animal carcinogenicity findings is an unacceptable public health policy, as it would necessitate human cases to prove environmental carcinogenicity.
• It highlights the critical role of experimental studies in risk assessment, as reflected in the IARC Monographs and WHO Air Quality Guidelines.
• The importance of a balanced approach to data interpretation, acknowledging potential errors in epidemiological and experimental studies, is underscored.

Key Insights:

• The precautionary principle, supported by robust scientific evidence, is crucial for evaluating toxicological and carcinogenic risks.
• Animal carcinogenicity studies are vital and should not be dismissed, as their findings inform human health protection.
• Transparency in data and expert involvement is essential for credible risk assessment by organizations like IARC.

Outlook:

• Continued integration of experimental data in carcinogen risk assessment frameworks, such as IARC Monographs and WHO guidelines.
• Upholding the precautionary principle to proactively address potential environmental health hazards.
• Maintaining high standards of transparency and rigorous evaluation of scientific evidence in public health policy development.