The evolution of the Electronic Common Technical Document (eCTD) has been a progression. More features and functionality become available to users as new versions are introduced. User adoption of eCTD also increases year over year. FDA Module 1 v2.3 (DTD 3.3) is a bridge to eCTD 4. A number of functionality enhancements set for inclusion in eCTD v4 first appeared in the new FDA M1 but were not present in FDA eCTD M1 (DTD 2.01). The shared features, presently implemented in FDA M1 v2.3 (DTD 3.3) and included in eCTD 4, are coded metadata, in the form of Controlled Vocabularies, and Grouped Submissions.
The FDA requirement to submit in eCTD format as of May 5, 2017 does not apply to Ad Promo submissions. As of today, the timeline for requirement of these submissions in eCTD is to be determined. Similar to the majority of regulatory requirement updates at FDA, the date effective clock doesn’t start counting down until guidance is finalized. The key indicator for Ad Promo eCTD submissions is the document titled – Providing Regulatory Submissions in Electronic and Non-Electronic Format – Promotional Labeling and Advertising Materials for Human Prescription Drugs. If FDA follows precedent, Ad Promo submissions will be required in eCTD format 2 years after the final guidance is published.
Submissions metrics for the US FDA’s new Module 1 shared with industry at the DIA RSIDM 2016 Forum paint a picture of modest activity for the enhanced specification. As of February 1, 2016, 117 companies submitted a total of 1,639 sequences of varying application and submission types.
The current FDA specifications governing grouped submissions state that Application Type and Submission Type have to agree. Accordingly, you would have no trouble grouping NDA labeling supplements.