Single-Dossier, Multi-Jurisdiction Architecture
The alternative to sequential filing is not filing five separate dossiers. That would increase cost and complexity while only moderately improving speed. The better model is a single master dossier from which regionally compliant submissions are generated systematically.
The architecture
A single-dossier architecture has three layers:
Layer 1 — Core scientific content. The data, the narratives describing that data, and the benefit-risk argument. This content is jurisdiction-agnostic — the science is the same regardless of where you're filing. This layer is written once and maintained as the authoritative source.
Layer 2 — Regional wrappers. Each jurisdiction requires a specific format, specific module numbering, specific administrative forms, specific labeling conventions. These are systematic variations — the kind of structured transformation that AI handles reliably.
Layer 3 — Regional strategic positioning. EMA and FDA weight benefit-risk differently. Japan's PMDA has specific concerns about Japanese patient data. Each jurisdiction requires a strategy layer that reflects its specific priorities. This is human expert work, but it's scoped to strategy, not to document production.
The production workflow
With a single-dossier architecture, submission preparation works like this:
- Core scientific content is drafted and reviewed once.
- Regulatory strategists define the regional positioning layer for each target jurisdiction.
- AI applies the regional wrapper — format, structure, labeling conventions — for each jurisdiction.
- Regional regulatory experts review the jurisdiction-specific wrapper and strategic framing.
- All submissions go to their respective agencies within days of each other.
What this requires organizationally
Single-dossier architecture requires earlier strategic investment: deciding which jurisdictions you're targeting before clinical development is complete, designing studies with multi-jurisdictional acceptance criteria in mind, and maintaining a consistent data repository that feeds all regional submissions.
Companies that build this infrastructure report 40-60% reduction in total regulatory preparation cost and 12-18 month acceleration in global filing timelines.