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The Common Technical Document, or CTD, is the internationally agreed format for submitting information about a medicine to regulators. Many emerging markets now accept CTD or a regional variant such as ACTD, which means a strong master dossier can be adapted for several countries.
Understand the Five Modules
- Module 1: Regional administrative information, application forms and labelling.
- Module 2: Summaries and overviews of quality, non clinical and clinical data.
- Module 3: Quality information covering the drug substance and drug product.
- Module 4: Non clinical study reports.
- Module 5: Clinical study reports, including bioequivalence data for generics.
Plan Before You Compile
Most delays come from missing data, not poor writing. Start with a checklist for the target country and confirm which stability zones, bioequivalence requirements and labelling rules apply.
Build a Strong Module 3
For generic products, Module 3 carries the most weight. Ensure the manufacturing process description, specifications, analytical validation and stability data are complete and consistent across every section.
Consistency is everything. A batch size or specification that differs between two sections is one of the most common reasons for regulator queries.
Submit and Manage Queries
- Perform an internal quality review against the country checklist.
- Submit in the required format, paper, CTD or eCTD.
- Track review timelines and respond to queries quickly and completely.
A master CTD built on complete, consistent data can be adapted for multiple markets, saving months on every new registration.
