# Approved Ambiguities: An Analysis of Applications for the Ethical Review of Animal Research in Sweden—Focusing on Harm, Benefit, and the 3Rs

**Authors:** Svea Jörgensen, Elin M. Weber, Johan Lindsjö, Frida Lundmark Hedman, Helena Röcklinsberg

PMC · DOI: 10.3390/ani15192771 · 2025-09-23

## TL;DR

This study looks at how animal research applications in Sweden are ethically reviewed, finding that important information is often missing, which hinders proper evaluation.

## Contribution

The study identifies gaps in ethical review applications and proposes nine action points to improve transparency and evaluation quality.

## Key findings

- Applications often lack sufficient information on animal harm, project benefits, and 3Rs compliance.
- Incomplete data hinders AECs from performing proper harm–benefit analyses.
- The authors suggest nine action points to improve ethical review processes.

## Abstract

In this study, we investigate and discuss how animal research applications undergo ethical review in Sweden. We examine what information must be included in submitted applications according to law, how well real applications mirror these requirements, and how Animal Ethics Committees (AECs) handle said information. If the AECs cannot perform a harm–benefit analysis (HBA) or assess how the 3Rs are considered in the planned project, they cannot fulfil the legal requirements of an ethical review. By examining a selection of applications, we found that information about harm to the animals, project benefit, and adherence to the 3Rs (Replacement of animals, Reduction of numbers, Refinement of methods) was often insufficient or left out. This was partly, but not exclusively, due to the structure of the online application form. We highlight the importance of detailed, complete, and accurate information about harms, benefits, and the 3Rs in each application to facilitate a proper ethical review performed by the AEC. We suggest nine action points to improve the evaluation process—for the sake of applicants, AECs, and the animals used in research—and to ensure research quality, transparency, and public trust in the ethical review.

This study examines regulatory requirements concerning the ethical review of animal research in Sweden, in particular legal obligations placed on applicants, and to some extent on Animal Ethics Committees (AECs). It focuses on what information applying researchers are required to provide, to what extent submitted applications reflect the fulfilment of these requirements, and how the AECs handle the information they receive. The study emphasizes areas of concern critical for an ethical evaluation. By examining a selection of submitted applications, the study has found information about harm, benefit, and the 3Rs is often insufficient or occasionally altogether missing, thus hindering the AECs’ performance of a harm–benefit analysis (HBA) and an assessment of how the applying researcher has considered the 3Rs in their project. The authors underscore the necessity for applying researchers to include detailed, relevant, complete, and accurate information to facilitate a thorough ethical review. To facilitate a shift towards a more thorough project evaluation, the authors suggest nine action points to improve the ethical review process for the sake of applicants, evaluators (AECs), and the animals used in research. This approach will also help enhance research quality, promote transparency, and build public trust in the ethical review process.

## Full-text entities

- **Diseases:** injury to (MESH:D014947), inflammation (MESH:D007249), pain (MESH:D010146), anxiety (MESH:D001007), infection (MESH:D007239)
- **Chemicals:** HBA (-)
- **Species:** Mus musculus (house mouse, species) [taxon 10090], Homo sapiens (human, species) [taxon 9606]

## Figures

7 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12523415/full.md

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Source: https://tomesphere.com/paper/PMC12523415