| アブストラクト | INTRODUCTION: Brexit has significantly altered the regulatory landscape for pharmaceuticals, with the UK no longer under the European Medicines Agency (EMA). The UK's Medicines and Healthcare products Regulatory Agency (MHRA) has since developed independent regulatory frameworks, introducing challenges for companies operating in both regions. METHODS: A qualitative approach was used, drawing on secondary data from peer-reviewed literature, official EMA and MHRA documents, and government publications. Sources were selected based on relevance to post-Brexit regulatory changes in drug approval, clinical trials, and pharmacovigilance. RESULTS: The MHRA has implemented distinct procedures, including the UK Conformity Assessed (UKCA) mark, new marketing authorization pathways, and accelerated drug review routes. Regulatory divergence has necessitated dual submissions, separate clinical trial approvals, and independent safety reporting systems, increasing costs and complexity. DISCUSSION: Despite shared safety objectives, the absence of harmonized processes complicates regulatory operations for pharmaceutical companies. The separation limits efficiency and may delay market access. However, international collaboration and the development of mutual recognition agreements offer potential pathways to reduce duplication and maintain alignment. CONCLUSION: Brexit has created a fragmented regulatory environment for pharmaceuticals in the UK and the EU. Companies must adopt flexible compliance strategies to manage dual frameworks. Continued dialogue and cooperation between regulatory bodies will be essential to safeguard patient access and support innovation across both jurisdictions. |
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