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Aug 11, 2026 | Rich Merrick

Universal global deadlines for using eCTD 4.0 are getting closer. Early preparation is key to ensure readiness. Veeva RIM’s data model is updated to support users with ICH’s latest eCTD specifications, stay compliant with Japan’s mandated eCTD 4.0, and submit to the FDA.

The ICH Implementation Guide (v1.6) was published in May 2024, and more regional implementation guides have been finalized, with more underway. In Japan, eCTD 4.0 is now mandatory, the FDA now accepts voluntary eCTD 4.0, and the EMA is strongly recommending eCTD 4.0 for new Centralised Procedure MAAs starting in Q1 2027.

Global regulatory agencies are defining mandatory dates for eCTD 4.0. Proactive planning is essential, since eCTD 4.0 incorporates a number of new concepts that differ significantly from previous versions. Regulatory leaders will benefit from diving into the specifications and regional guidance to determine how it will change practices within their companies and teams. The ICH eCTD 4.0 website is updated bi-annually with the latest pilot and implementation timelines, including links to the dedicated regional implementation documentation.

An evolution of the eCTD standard

eCTD 4.0 updates the global standard for electronic regulatory submissions to improve processing consistency for both publishing teams and regulatory reviewers. Since its introduction in 2002, the eCTD framework has transitioned the industry away from paper dossiers to mandatory electronic submissions, which the FDA formally enforced in 2018. Although some industry perspectives note that the update does not adopt more advanced data-driven capabilities, eCTD 4.0 introduces distinct technical enhancements and updated lifecycle management features.

A simplified global standard

While eCTD 3.2.2 provided a global standard format, country-specific nuances remained, such as the use of node extensions or Study Tagging Files (STFs). In contrast, eCTD 4.0 provides a single, unified format that is used across all regions. Each region determines which components of the format to implement to address its unique requirements (such as territorial authority). This establishes a more harmonized global approach, with a single submission unit XML output, while still allowing for region-specific controlled vocabularies that define things like the eCTD Module 1 structure.

The changes result in more consistent processes for regulatory activities. By using the same schema from region to region, it is easier for users to reuse content. There are fewer manipulations to the structure to ensure it will be accepted by the target country. The use of controlled vocabularies in eCTD 4.0 allows updates to the regional specifications to be made without major changes to the underlying schema. A controlled vocabulary for a manufacturer can now be defined globally, rather than application-by-application. Sponsors must rethink how they submit and enrich data in existing systems to prepare for eCTD 4.0.

While it was possible to reuse data and documents in eCTD 3.2.2, eCTD 4.0 encourages leveraging documents through unique identifiers. This allows for documents to be reviewed once and used across multiple applications to the same regulatory agency. Systems like Veeva RIM Submissions Publishing, which are unified with a document management system, can now calculate if a document was already sent and automatically write the XML to contain the unique identifier to exclude the document from the submission package. This also means the agency doesn’t need to re-review the same document multiple times, resulting in a more efficient process.

Lifecycle changes

eCTD 4.0 replaces the ‘leaf’ with a ‘context of use’ (CoU). As a result, the way a CoU is managed changes throughout its lifecycle: the metadata plus its status now determines the action being performed. The CoU is either suspended or active.

  • Active Status: When active, you can define what is being replaced.
  • No More “Append”: The eCTD 3.2.2 operation ‘Append’ has been eliminated.
  • “Suspend” Status: The ‘Delete’ operation is replaced with the ability to suspend a CoU (which can be reactivated in the future if necessary).
  • Advanced “Replace”: The replace action also allows a many-to-one replacement, or a one-to-many replacement, allowing for more granular changes.

Operational impact

Without robust document management, customers must manually track document distribution. Unified publishing and document management systems can significantly streamline this process by providing seamless end-to-end tracking and visibility into the status for all documents.

“Forward compatibility” in eCTD 4.0 allows an eCTD 4.0 submission to reuse or reference documents originally submitted in legacy eCTD 3.2.2 submissions. Systems will need to support both eCTD 3.2.2 and eCTD 4.0 to ensure an accurate lifecycle, and automatically calculate the paths necessary to take advantage of forward compatibility.

Veeva Submissions Publishing supports all new lifecycle operations natively.

How Veeva Vault RIM facilitates eCTD 4.0 success

Veeva has enhanced Veeva RIM applications — Veeva Submissions, Submission Publishing, Submission Archive, and Registrations — to fully support eCTD 4.0.

Released data model changes enable sponsors to start enrichment projects, submit eCTD 4.0 applications to Japan’s PMDA, and participate in FDA pilots, including the recent forward compatibility pilot. As other regions solidify their roadmaps, additional local support will become available.

Read about Veeva RIM support capabilities and Veeva’s Health Authority Gateway to learn more about how Veeva facilitates e-submission.

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