validiTEE

Key information
Title:
validiTEE - Validation of Trial-based Economic Evaluations
Leads: Rebecca Kandiyali and May Ee Png
Co-applicant: Kamran Khan
Funder: MRC-NIHR Trials Methodology Research Partnership (TMRP)
Lead Institutions: University of Warwick and University of Oxford
Summary:
This project aims to understand what “validity” means in economic evaluations that are conducted alongside clinical trials and to begin developing practical guidance for best practice. In this setting, we understand validation as a careful check by health economists to ensure that the analysis, its code, and the assumptions behind it are correct and make sense before the results are shared. While there are established frameworks for validating economic models, such as those used by the CDA-AMC, no similar approach exists for trial-based analyses. This project is the first step towards creating a tool to help researchers check and improve the quality of economic evaluations conducted alongside trials.
Primary objectives:
i. Conduct targeted literature reviews, including grey literature to identify existing validation approaches in economic evaluation. If necessary, we will expand the scope to include validation frameworks in clinical trials more broadly.
ii. Recruit and involve key stakeholders in pre-Delphi discussions to refine the scope of validation and discuss concerns before launching Round 1 of the Delphi survey.
iii. Design the Round 1 Delphi survey, informed by literature findings and stakeholder input.
iv. Prepare a larger grant application to carry out the full Delphi study, establishing consensus on key validation items. This will outline the Delphi methodology, including expert selection, iterative rounds with controlled feedback, anonymity, and structured consensus methods such as ranking, rating scales, and thematic analysis where applicable.
Duration:
We’re inviting people to help improve how trial-based economic evaluations are assessed and used in health research.
We welcome:
· Patients and public contributors (PPI) with experience in clinical trials
· Researchers or professionals with experience in health economics, clinical trials, or statistical modelling
· Those involved in HTA, guideline development, evidence synthesis, reviewing, commissioning, or funding economic evaluations
Your views will help ensure these evaluations are robust, transparent, and useful for decision-making.
Participants should be able to join online pre-Delphi discussions in January and April 2026.