Regfo

CTD Regulatory Library

Complete reference for Common Technical Document requirements. Every section includes phase-specific requirements (IND Phase 1–3, NDA) based on ICH M4Q, M4S, and M4E guidelines.

218
CTD Sections
5
Modules
4
Phase Levels
46
ICH Guidelines

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Based on ICH M4(R4), M4Q(R1), M4S(R2), M4E(R2) and 21 CFR 312.23