Relationship between PREPARE and ARRIVE

The PREPARE guidelines for planning animal experiments are complementary to reporting guidelines such as ARRIVE. They should both be used, to ensure that important topics have not been omitted: PREPARE from day 1 of planning, ARRIVE when manuscripts are to be submitted for publication.

There is a need both for planning and reporting guidelines. We have tried to illustrate this in a cartoon film.

PREPARE includes topics which may not be necessary to report in a scientific paper, but which can seriously affect the scientific validity of an animal study, its reproducibility and its translatability, and animal welfare. In addition PREPARE addresses the potential health risks to both humans and animals, and how to ensure a Culture of Care.

This table shows the 15 points in the PREPARE guidelines checklist,  with the 20 points in the ARRIVE guidelines for comparison. Note that, unlike ARRIVE, the topics in PREPARE (which are grouped into three main themes) will not necessarily be addressed in order, when planning an experiment.

Also, the PREPARE checklist is just the top of an iceberg: all the topics in PREPARE are discussed in more detail, with many links to international resources, under the headings on the main PREPARE page.


Formulation of the study

1.     Literature searches

2.     Legal issues

3.     Ethical issues, Harm-Benefit Assessment and humane endpoints

4.     Experimental design and statistical analysis

Dialogue between scientists and the animal facility

5.     Objectives and timescale, funding and division of labour

6.     Facility evaluation

7.     Education and training

8.     Health risks, waste disposal and decontamination

Quality control of the components in the study

9.     Test substances and procedures

10.  Experimental animals

11.  Quarantine and health monitoring

12.  Housing and husbandry

13.  Experimental procedures

14.  Humane killing, release, re-use or re-homing

15.  Necropsy


1.     Title

2.     Abstract


3.     Background

4.     Objectives


5.     Ethical statement

6.     Study design

7.     Experimental procedures

8.     Experimental animals

9.     Housing and husbandry

10.  Sample size

11.  Allocating animals to experimental groups

12.  Experimental outcomes

13.  Statistical methods


14.  Baseline data

15.  Numbers analysed

16.  Outcomes and estimation

17.  Adverse events


18.  Interpretation/scientific implications

19.  Generalisability/translation

20.  Funding


Click on the picture to see a 3-minute film about the roles of planning and reporting guidelines.

PREPARE film storyboard

Further reading

This page was updated on 07 May 2020

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