Clinical Development History — What the Agency Asked, and Where You Answered


DnXT Reviewer

What Did the Agency Ask? Word for Word.

Read any application’s filed history as a clinical development timeline — protocol versions, agency letters and clinical holds — with every agency request in the agency’s own words, linked to the response that answered it.

Development history
IND · Clinical hold, continued
Agency letter · 12 items read from the filed PDF
Hold issue 121 CFR 312.42(b)(1)(iv) · in the agency’s words
Answered
Requirement A.2Response in sequence 0013 · page 4
Answered
Clinical request 3Restated in a later regulatory history
Quoted
Hold removedAgency letter on file
On file
Every fact shows whether it was read from the filing or worked out from its title and location
The problem

Your regulatory history is in the submissions. Finding it is the hard part.

When a new team member joins a programme, or a meeting package is due, someone has to answer the same questions: how did the protocol evolve, what has the agency raised, which hold issues were answered and where, and what is still open.

Those answers are all in the filed sequences. In most companies they are reconstructed by hand, from a viewer and a spreadsheet, every time someone asks.

DnXT Reviewer builds the history directly from what you filed.

Who it is for

Built for the people who own the outcome

Clinical and regulatory leads

See the whole development story of an IND or NDA in one place before a meeting, without opening thirty sequences.

Regulatory writers

Find the agency’s exact wording and the response that addressed it, ready to cite in the next briefing document.

Due diligence and in-licensing teams

Understand an acquired programme’s regulatory history from its filings, not from a summary someone wrote.

Capabilities

The history, read from the record

Per-sequence timeline

Each sequence with its submission type, date and what it carried: protocols, amendments, consent forms, brochures, meetings, responses, safety reports and study reports.

Protocol versions

Every version of every protocol, with the filed redline or summary of changes attached to the version it explains.

Clinical holds

Holds placed, continued and removed, in letter-date order, from the agency letters you filed.

Agency requests, word for word

Hold issues under their regulatory basis, information requests, and additional requests in meeting letters — in the agency’s own words, with the full text one click away.

Linked responses

Each request is linked to the filed response that restates it, with the document, heading, page and answer — marked Answered or Quoted.

Study pages

Every document filed for a study across all sequences, grouped by type, with its datasets and define files by the sequence they were filed in.

Design decisions

Accuracy rules

No AI, nothing summarised

Requests and responses are read from the filed documents, not paraphrased by a model. What you see is what was filed.

A link means a verbatim match

A response is tied to a request only when the agency’s wording appears in it word for word. Anything that does not match is left unlinked, not guessed.

Unanswered is not unresolved

A request no response quotes is shown as such. It is never presented as an open issue it may not be.

Every fact shows its source

Each item is marked as read directly from the filing, or classified by a stated rule from its title and location.

Questions

Frequently asked

Which agency letters does it read?

Clinical hold, hold-continued and hold-removal letters, information-request letters, meeting letters and information requests filed as email chains, as filed in your sequences.

Does it use AI to extract the requests?

No. Requests and responses are read from the documents by fixed rules, and a response is linked only on a verbatim match.

Do we need to tag or prepare anything?

No. The history is built from the filed sequences each time it is opened. Nothing is typed in.

Does it work on imported applications?

Yes. It reads any application loaded into DnXT Reviewer, whichever tool published it.

Your history is already filed. Read it.

Load an application you know well and see its development history, agency requests and responses assembled from the record.