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Accelerating Global Access for Indication Extension Through Regulatory Reliance Pilot: The First Indication Extension
Anna Litsiou1, Melanie Jane Snow2, Emma Morgan2
1AstraZeneca UK, 136 Hills Road, Cambridge, CB2 8PA, UK. anna.litsiou1@astrazeneca.com.
Therapeutic Innovation & Regulatory Science
|May 13, 2026
Summary
Regulatory reliance pathways streamline medicine approvals. A pilot for indication extensions reduced timelines by 3 months, enhancing global patient access to new therapies.
Area of Science:
- Pharmaceutical Regulatory Affairs
- Global Health Policy
- Drug Development
Background:
- Regulatory reliance pathways are crucial for accelerating medicine access and building capacity in National Regulatory Authorities (NRAs).
- Previous reliance pilots focused mainly on Chemistry, Manufacturing, and Controls (CMC) post-approval changes, with limited application to labeling variations like indication extensions.
Purpose of the Study:
- To describe the first regulatory reliance pilot specifically for an indication extension.
- To evaluate the impact of this pilot on approval timelines, regulatory convergence, and inter-authority communication.
- To identify success factors and challenges in implementing reliance pathways for indication extensions.
Main Methods:
- Engaged 21 National Regulatory Authorities (NRAs) across multiple regions in a reliance pilot.
- Utilized the European Medicines Agency (EMA) as the reference agency.
- Incorporated an optional digital platform for real-time sharing of questions and responses among participating authorities.
Main Results:
- Achieved a significant reduction in approval timelines, averaging 3 months shorter per country compared to standard processes.
- Demonstrated the feasibility and benefits of regulatory reliance for indication extensions.
- Facilitated streamlined communication and enhanced transparency among participating regulatory authorities.
Conclusions:
- Regulatory reliance for indication extensions substantially improves efficiency in regulatory processes.
- This approach significantly reduces approval timelines, leading to more timely global patient access to essential medicines.
- The pilot provides a model for optimizing regulatory processes and promoting international collaboration.
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