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Toxicity Testing in Animals

Toxicity Testing in Animals

Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...

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Related Experiment Video

Updated: Mar 24, 2026

Transition of Farm Pigs to Research Pigs using a Designated Checklist followed by Initiation of Clicker Training - a Refinement Initiative

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Goodbye general animal safety tests.

M Bratoš¹, E Charton¹

¹European Directorate for the Quality of Medicines & HealthCare, Council of Europe, Strasbourg, France.

Pharmeuropa Bio & Scientific Notes

|March 23, 2026

Summary

This summary is machine-generated.

The European Pharmacopoeia is phasing out general animal safety tests by 2026, replacing them with superior in vitro methods. This shift prioritizes animal welfare and enhances pharmaceutical quality control.

Keywords:

European Pharmacopoeia animal safety tests animal testing animal welfare ethical in vitro methods

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Area of Science:

Pharmacology and Toxicology
Pharmaceutical Science
Animal Welfare Science

Background:

Historical reliance on general animal safety tests in the European Pharmacopoeia.
Growing awareness of scientific limitations and ethical concerns associated with animal testing.
The European Pharmacopoeia Commission's commitment to the 3Rs principles (Replacement, Reduction, Refinement).

Purpose of the Study:

To review the historical use and progressive elimination of general animal safety tests in the European Pharmacopoeia.
To highlight the scientific and ethical drivers for this transition.
To emphasize the adoption of alternative methods and their impact on pharmaceutical safety.

Main Methods:

Review of historical data and regulatory documents from the European Pharmacopoeia.
Analysis of scientific literature on the limitations of animal tests and the validation of in vitro alternatives.
Examination of regulatory strategies and the implementation of the 3Rs principles.

Main Results:

Key animal tests (abnormal toxicity, pyrogens, histamine, depressor substances) have been suppressed.
The European Pharmacopoeia is set to completely abolish general animal safety tests by 2026.
Validated in vitro methods are recognized as scientifically superior and sufficient for ensuring product safety.

Conclusions:

The elimination of general animal safety tests marks a significant advancement in animal welfare.
The transition underscores the scientific superiority of validated in vitro methods in pharmaceutical quality control.
Modern regulatory strategies effectively ensure product safety without animal testing.