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Written question asked by Chris Evans (Labour) on Wednesday, 12 November 2025, in the House of Commons. It was due for an answer on Monday, 17 November 2025. It was answered by Ashley Dalton (Labour) on Thursday, 5 February 2026 on behalf of the Department of Health and Social Care.


Brain Cancer: Human Tissue

Question

To ask the Secretary of State for Health and Social Care, what assessment he has made of the adequacy of (a) fresh-freezing, (b) snap-freezing and (c) flash frozen capacity for brain cancer tissue samples across NHS trusts in England.

Answer

Fresh-freezing, also referred to as snap-freezing, is a standard technique used by pathology networks to preserve tissue architecture without chemical fixatives, allowing for subsequent molecular or histological analysis, typically supporting research or advanced diagnostic applications.

Pathology services in England are delivered through 27 regional pathology networks, and offer a comprehensive range of tests, including the analysis of brain tissues.

Individual pathology services maintain their own standard operating procedures (SOPs) for fresh tissue samples and for the snap-freezing of tissue samples. These SOPs outline local capabilities and practices.

It is important that everyone, regardless of where they live, can access the latest innovations in the health and care system through research. The Department invests over £1.6 billion each year in research through the National Institute of Health and Care Research (NIHR). The NIHR’s investments for capital equipment, technology, and modular buildings support NHS trusts across England to deliver high-quality research to improve the health of the population. This investment includes cutting edge research equipment and fixed assets such as ultra-low and cryogenic freezers, to strengthen research capacity and improve access to samples for research.

The Department is exploring options to expand brain tissue freezing capacity.


Secondary information

Type
Written question
Reference
90176
Session
2024-26
Grouped for answer
Yes
Subjects
Research Refrigeration Human tissue Brain cancer
Link
View this Written question on www.parliament.uk