Artificial patient-like cancer data to help researchers gain insights

The Simulacrum imitates some of the data held securely by the Public Health England’s National Cancer Registration and Analysis Service.

The data in the Simulacrum is entirely artificial. It does not contain data about real patients, so users can never identify a real person. It is free to use and allows anyone who wants to use record-level cancer data to do so, safe in the knowledge that while the data feels like the real thing, there is no danger of breaching patient confidentiality.

We have kept the data model – the shape of the data – the same as the real one so that it can be used to write and test queries that would run on the real data.


What the Simulacrum is and why we made it.

Available data

Find out what data is in the Simulacrum.

Getting started

Find out how to use the Simulacrum.

Download the Simulacrum

Download the Simulacrum data and get started on your research.


Everything you want to know about the project, from who made it to how it was made and how to use it.