Know how FDA will review
your submission — before they do

AI-powered eCTD analysis that maps every module against ICH CTD guidelines and FDA reviewer expectations. Identify gaps, inconsistencies, and compliance risks in real time.

NDA ANDA IND BLA 505(b)(2)
LEAF AI — SUBMISSION INTELLIGENCE
eCTD Modules
Module 1 — Administrative
Module 2 — CTD Summaries
Module 3 — Quality
Module 4 — Nonclinical
Module 5 — Clinical
Sections
2.2 — Introduction
2.5 — Clinical Overview
2.6 — Nonclinical Summary
2.7 — Clinical Summary

Module 2.5 — Clinical Overview

Compliance
87%
High

Missing benefit-risk discussion

Section 2.5.6 requires an integrated benefit-risk assessment. Current draft lacks quantitative benefit-risk framework that FDA reviewers expect per CDER Manual of Policies and Procedures.

ICH M4E(R2) §2.5.6 · FDA Guidance for Industry
Med

Inconsistent endpoint terminology

Primary endpoint described as "overall response rate" in §2.5.4 but "objective response rate" in §2.7.3. FDA reviewers flag terminology mismatches as a deficiency.

Cross-reference: §2.5.4 ↔ §2.7.3
Low

Study table formatting non-standard

Table 2.5-1 uses non-standard column layout. Consider aligning to FDA's preferred tabular format for clinical study summaries to improve reviewer readability.

FDA eCTD Technical Conformance Guide

From first draft to final filing

Continuous, intelligent oversight at every stage of your regulatory submission.

01

Upload your submission

Upload your eCTD modules — complete or in progress. Leaf AI parses every document, table, cross-reference, and data point across all five modules in seconds.

02

AI maps against guidelines

Every section is mapped against ICH CTD structure, FDA reviewer checklists, and known deficiency patterns from thousands of historical review cycles.

03

Get your gap report

Receive a prioritised gap analysis showing exactly what's missing, what's inconsistent, and what FDA reviewers will flag — with ICH references and remediation guidance.

Everything your submission needs

Leaf AI analyses your regulatory filing the way a senior FDA reviewer would — systematically, comprehensively, and with zero tolerance for gaps.

Talk to our team →

Module-by-module gap analysis

Systematic review of every eCTD module and section against ICH CTD M4 guidelines. Missing content, incomplete data tables, absent cross-references — all flagged with severity ratings.

Consistency checking

Cross-references every claim, data point, and endpoint across all five modules. Catches terminology mismatches, conflicting statistics, and broken internal references that trigger review deficiencies.

FDA reviewer alignment

Models how CDER, CBER, and CDRH reviewers evaluate submissions. Trained on thousands of complete response letters, refusal-to-file actions, and information requests to predict reviewer behaviour.

Compliance scoring

Real-time submission readiness score that updates as you write. Track compliance progress across modules, view severity distributions, and benchmark against successful submissions.

Remediation guidance

Every gap comes with specific ICH and FDA guidance references, recommended language, and examples from successful submissions. Your team knows exactly what to fix and how.

Real-time analysis

Continuous monitoring as your submission is written — not a one-time check at the end. Catch issues early when they're easy to fix, not days before your filing deadline.

Every pathway. Every format.

Full eCTD analysis for all major FDA submission types.

NDA
New Drug Application
ANDA
Abbreviated New Drug Application
IND
Investigational New Drug Application
BLA
Biologics License Application
505(b)(2)
Abbreviated New Drug Pathway under Section 505(b)(2) of the FD&C Act

Submission Intelligence FAQ

What is eCTD submission intelligence?

eCTD submission intelligence is AI-powered analysis of electronic Common Technical Document (eCTD) filings that maps every module and section against ICH CTD guidelines and FDA reviewer expectations. It identifies gaps, inconsistencies, and compliance risks before submission, reducing the likelihood of complete response letters, refusal-to-file actions, and information requests.

What FDA submission types does Leaf Intelligence support?

Leaf Intelligence supports all major FDA submission types: New Drug Applications (NDA), Abbreviated New Drug Applications (ANDA), Investigational New Drug applications (IND), Biologics License Applications (BLA), and 505(b)(2) abbreviated pathway submissions. Each is analysed against the full ICH CTD M4 structure.

How does AI-powered gap analysis work for regulatory submissions?

Leaf Intelligence parses every document, table, cross-reference, and data point across all five eCTD modules. Each section is then mapped against ICH CTD structure, FDA reviewer checklists, and known deficiency patterns from thousands of historical review cycles. The result is a prioritised gap report with severity ratings, ICH references, and specific remediation guidance.

What are common reasons the FDA issues a Complete Response Letter?

The FDA issues a Complete Response Letter (CRL) when a submission cannot be approved in its current form. Common reasons include insufficient clinical data, manufacturing deficiencies, incomplete benefit-risk assessment, labelling issues, and inadequate statistical analysis. Leaf Intelligence's gap analysis is designed to catch these issues before filing.

How is this different from a manual regulatory review?

Manual reviews typically focus on individual sections and rely on a reviewer's memory to catch cross-module inconsistencies. Leaf Intelligence analyses all five modules simultaneously, cross-referencing every data point, endpoint, and claim in seconds. It also benchmarks against patterns from thousands of historical FDA review cycles — something no manual process can replicate. Book a demo to see it in action.

Stop the last-minute
scramble before filing

See how Leaf AI's Submission Intelligence gives your team continuous, intelligent oversight — from first draft to final filing.