MAH Guide
MAH Responsibilities in the UK: Quality, Supply Chain and GDP Interfaces
This article focuses on the quality, supply chain and GDP interfaces that a UK MAH should keep under control, especially when distribution activities are outsourced.
A Marketing Authorisation Holder (MAH) holds the authorisation to place a medicine on the market. In practice, many MAHs rely on outsourced manufacturers, wholesalers, logistics providers and service partners.
The MAH role is wider than the licence document
A marketing authorisation permits a specific medicine to be placed on the market. The authorisation holder still needs a controlled system for managing product information, quality events, contractors and supply chain decisions.
Where third parties perform operational work, the MAH should still understand who is doing what, which licences apply and how quality responsibilities are defined.
Where MAH and GDP responsibilities meet
GDP becomes relevant when finished medicinal products are stored, supplied or transported through wholesale distribution routes. The MAH may not hold the WDA(H), but MAH decisions can directly affect GDP controls.
Common interfaces include batch release-to-market handover, stock allocation, returns, complaints, recalls, temperature excursions and product quality defect escalation.
Quality agreements should be practical, not decorative
A quality agreement should clearly define responsibilities between the Marketing Authorisation Holder, WDA(H) holder, manufacturer, logistics provider and any Contract QA support.
It should describe escalation timelines, documentation ownership, deviation/CAPA handling, recall roles, temperature data review and who approves changes affecting the product or supply chain.
Supply chain oversight questions for MAHs
Can you identify every party that stores, transports, imports, exports or supplies your product? Are licences and GDP certificates current? Are responsibilities for recalls and quality defects tested rather than assumed?
These questions help MAHs move from passive reliance on suppliers to active, evidence-based oversight.
Contract QA support can help maintain oversight
Contract QA can support MAHs by reviewing quality agreements, supplier qualification files, GDP interfaces, change controls and audit outputs. The accountability remains with the relevant legal entities, but expert support can make oversight more consistent.
Official sources used
How SwiftGxP can help
If you need practical QA support, I can help with:
- MAH supply-chain quality interface reviews
- Quality agreement gap assessments
- Supplier and outsourced-provider oversight support
- Contract QA for MAH and WDA(H) interfaces
Important regulatory note
General guidance only
This MAH quality and GDP interfaces article is general guidance and is not regulatory advice. It should not be relied on as specific advice for your organisation.
GDP, WDA(H) and Responsible Person expectations can vary depending on your authorised activities, site arrangements, suppliers, products and quality system. If you need advice for your circumstances, please get in touch with Miglė to discuss your requirements.
Ask Miglė for specific advice