Available
Project number:
2025_08
Start date:
October 2025
Project themes:
Main supervisor:
Professor of Practice in Biostatistics
Co-supervisor:
Dr Nilesh Pareek
Additional Information:
Developing synthetic control methods to utilise patient timelines generated by the Foresight transformer for target trial emulations using electronic health records (EHRs)
Background:
Routinely collected data stored in electronic health records (EHRs) provide a powerful resource for evaluating interventions for real-world patient populations; however, internal validity is frequently impacted by confounding. The trial emulation framework proposed by Hernan and colleagues mimics a target trial using observational data and crucially requires addressing confounding bias. The recently developed Foresight transformer converts text information into timelines of events and thus might provide a convenient data format for improving confounding control.
Novelty & Importance:
Using Foresight generated timelines in trial emulation studies requires the development of statistical methodology. This project aims to develop a matching methodology for the estimation of causal treatment effects. To this end a tool/program will be developed that creates synthetic controls with similar pre-treatment timelines for comparison with treated patients, and which can be used on any EHR processed with Foresight.
Aims & Objectives:
To extract data sets for target trial emulations from EHRs using the Foresight data generator.
To develop statistical methodology for estimating causal effects of treatments (synthetic control matching).
To develop exemplar target trial emulation studies using the KCL-CVD registry.
The KCL-CVD registry is a de-identified database of approximately 100,000 individuals derived from EHR data from two large university hospitals - Guy’s & St Thomas’ and King’s College Hospital between 2012 and 2022. It provides a rich resource to support research into cardiovascular diseases and their care. Case studies might include staged discontinuation of post-myocardial infarction pharmacological therapies or contemporary pharmacological therapies in heart failure.
References:
Kraljevic Z., Bean D., Sheck et al. (2024) Foresight – a generative pretrained transformer for modelling of patient timelines using electronic health records: a retrospective modelling study. Lancet Digital Health 6 (4): e282-e290. DOI: 10.1016/S2589-7500(24)00025-6
McGarvey M., Lam L.T., Razak M.A., et al. (2024) Impact of lesion morphology on stent elongation during bifurcation PCI: an in vivo OCT study. EuroIntervention 20 (18): e1184-e1194. DOI: 10.4244/EIJ-D-23-00663
Scola G., Chis-Ster A., Bean D., Pareek N., Emsley E. & Landau S. (2023) Implementation of the trial emulation approach in medical research: a scoping review, BMC Medical Research Methodology 23: 186; DOI: 10.1186/s12874-023-02000-9
We are now accepting applications for 1 October 2025
How to apply
Candidates should possess or be expected to achieve a 1st or upper 2nd class degree in a relevant subject including the biosciences, computer science, mathematics, statistics, data science, chemistry, physics, and be enthusiastic about combining their expertise with other disciplines in the field of healthcare.
Important information for International Students:
It is the responsibility of the student to apply for their Student Visa. Please note that the EPSRC DRIVE-Health studentship does not cover the visa application fees or the Immigration Health Surcharge (IHS) required for access to the National Health Service. The IHS is mandatory for anyone entering the UK on a Student Visa and is currently £776 per year for each year of study. Further detail can be found under the International Students tab below.
Next Steps
- Applications submitted by the closing date of Thursday 6 February 2025 will be considered by the CDT. We will contact shortlisted applicants with information about this part of the recruitment process.
- Candidates will be invited to attend an interview. Interviews are projected to take place in April 2025.
- Project selection will be through a panel interview chaired by either Professor Richard Dobson and Professor Vasa Curcin (CDT Directors) followed by informal discussion with prospective supervisors.
- If you have any questions related to the specific project you are applying for, please contact the main supervisor of the project directly.
For any other questions about the recruitment process, please email us at