Question to the Home Office:

To ask His Majesty's Government, further to Written Answer by Lord Markham on 28 March (HL6448), how many animals, and of what type, are currently used in licensed laboratories for pyrogen testing.

The Home Office publishes annual statistics on the use of animals in scientific procedures. The statistics can be found at: https://www.gov.uk/government/collections/animals-in-science-statistics

The most recent statistics for 2021 show that no procedures have been carried on animals for quality control pyrogenicity testing for regulatory use since 2019 (data table 7.1).

Pyrogen testing could be recorded under other categories in the statistics. However, the statistics do not break down the data by test type for non-regulatory or other regulatory purposes.