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Reviewing the 14-day rule: Project aims and objectives

We aim to deliver a robust, independent body of evidence on possible policy and regulatory options for the future of embryo research.

Introduction

The Nuffield Council on Bioethics (NCOB) is undertaking a project to explore the current and future ethical, scientific, social, and policy considerations related to the 14-day rule for human embryo culture, with the aim of informing UK legislative reform. The project activities will take place across four phases. Short outputs will be produced at the end of each phase, culminating in a summary report.   

This work forms part of the NCOB’s wider priority area on Reproduction, Parenthood and Families. This will be the second major project carried out under this area since its establishment under NCOB’s 2024-2028 strategy, following the delivery of a report reviewing stem cell-based embryo models in November 2024. 

The Working Group will, over the course of the project, steer the evidence gathering process, and discuss and deliberate on findings with the aim of producing a consensus report around a roadmap of the most appropriate options for UK policy in this area.  

Project aim

We aim to deliver a robust, independent body of evidence to key decision makers on possible policy and regulatory options for the future of embryo research, informed by appraisal of different policy options for the future of the 14-day rule, considering scientific capabilities, ethics, and diverse public views and values.

Specific project aims

These aims reflect the commitments made in the funding bid for this project. 

Phase 1 (P1): exploring the science, its potential and its impact 

Aim: The balancing of ethical issues/concerns in part depends on an understanding of scientific capabilities. This phase will take a multi-method approach to reviewing the current state of the science and its future potential.  

Phase 2 (P2): framing the ethical issues in today’s context  

Aim: Building on P1, we will engage with a diverse range of views nationally and internationally to identify and provide an overview of relevant ethical issues in a balanced way (taking account of the wider social, legal and regulatory as well as practical/clinical issues relevant to embryo research). The outputs in this phase will inform public dialogue activities in P3.  

Phase 3 (P3): public deliberation – understanding UK values and views  

Aim: Explore UK public views and values on the 14-day rule, the associated options and ethical questions, and provide key insights on how the public reaches those views.  

Phase 4 (P4): providing a road map for policy makers 

Aim: During this phase will Working Group will review and appraise evidence gathered in P1-3.