IND Application

Drafts a complete IND application under 21 CFR Part 312 for FDA authorization to begin human clinical trials.

Prerequisites

Collect before drafting:

Drug substance/product info — chemical name, code designation, structural formula, mechanism of action
Nonclinical reports — pharmacology, toxicology, PK/PD data
CMC data — manufacturing process, specifications, stability, certificates of analysis
Clinical protocol(s) — design, objectives, endpoints, statistical analysis plan
Investigator info — CVs, Form FDA 1572, clinical site details
Prior human experience (if any) — foreign trials, literature, compassionate use
IRB documentation — approval letters or submission plans, informed consent forms

Quick Start

Confirm trial phase (I/II/III) — this drives CMC depth and nonclinical requirements
Complete Form 1571 cover sheet
Draft sections in 21 CFR 312.23(a) order (see below)
Cross-reference all nonclinical citations to specific IND sections
Run checklists for Form 1571, IB, protocol, and environmental assessment

IND Section Order (21 CFR 312.23(a))

| # | Section | Reference | |---|---------|-----------| | 1 | Cover Sheet — FDA Form 1571 | 312.23(a)(1) | | 2 | Table of Contents — mirror regulatory numbering | 312.23(a)(2) | | 3 | Introductory Statement — rationale, therapeutic purpose, investigational plan | 312.23(a)(3) | | 4 | Investigator's Brochure — safety, efficacy, pharmacology, known risks | 312.23(a)(5) | | 5 | Clinical Protocol(s) — design, dosing, safety monitoring, statistical plan | 312.23(a)(6) | | 6 | CMC: Drug Substance — synthesis, specs, stability | 312.23(a)(7) | | 7 | CMC: Drug Product — formulation, controls, container/closure, stability | 312.23(a)(7) | | 8 | Pharmacology/Toxicology — PK, acute/chronic tox, repro tox, genotox | 312.23(a)(8) | | 9 | Previous Human Experience — prior clinical data, foreign trials, literature | 312.23(a)(9) | | 10 | Additional Information — IRB approvals, consent, investigator qualifications | 312.23(a)(10) |

Key Checklists

Form 1571

[ ] Sponsor name, address, contact
[ ] Drug name and code designations
[ ] Trial phase (I, II, III)
[ ] IND number (amendment) or "Initial"
[ ] Serial number
[ ] Indication(s) under investigation
[ ] List of enclosed sections
[ ] Authorized signature with date

Investigator's Brochure

[ ] Physical/chemical/pharmaceutical properties
[ ] Nonclinical pharmacology summary
[ ] Nonclinical PK and metabolism
[ ] Nonclinical toxicology (tabulate: species, route, duration, NOAEL, findings)
[ ] Clinical experience summary (if applicable)
[ ] Known/anticipated adverse effects and precautions

Clinical Protocol

[ ] Title, protocol number, version/date
[ ] Primary and secondary objectives
[ ] Study design and phase
[ ] Inclusion/exclusion criteria
[ ] Dosing regimen with rationale
[ ] Efficacy and safety endpoints
[ ] Stopping rules and dose-limiting toxicity definitions
[ ] Safety monitoring plan (AE reporting, DSMB if applicable)
[ ] Statistical analysis plan with sample size justification

Phase-Appropriate CMC Depth

| Phase | Drug Substance | Drug Product | Stability | |-------|---------------|-------------|-----------| | I | Synthetic route, preliminary specs, structure confirmation | Formulation description, basic controls | Abbreviated (cover trial duration) | | II | Refined process, tightened specs, impurity profiles | Validation initiated, expanded controls | 6+ months accelerated + long-term | | III | Full process validation, complete characterization | Full cGMP, container/closure validation | ICH-compliant program |

Nonclinical Study Table Format

For each study, tabulate: study type, test facility (with GLP status), species/strain, route, dose levels, duration, NOAEL/NOEL, key findings, relevance to clinical dose.

Environmental Assessment

Most INDs qualify for categorical exclusion under 21 CFR 25.31(e)
If claiming exclusion: cite the specific 21 CFR 25 provision with basis statement
If exclusion does not apply: prepare assessment per 21 CFR Part 25 Subpart B

Pitfalls and Checks

Verify FDA forms — retrieve current Form 1571/1572 from fda.gov; versions update periodically
Phase-appropriate CMC — do not over-document Phase I or under-document Phase III
Cross-reference internally — protocol references to nonclinical data must cite specific IND section/page
GLP compliance — pivotal safety studies require 21 CFR Part 58; flag and justify any non-GLP studies
No promotional language — avoid unsupported efficacy claims; this is a scientific/regulatory document
Safety-first framing — every section must demonstrate adequate basis for protecting human subjects
Confidential info — mark trade secrets per 21 CFR 312.130 if sponsor requests
eCTD format — for electronic submissions, organize per FDA eCTD Module 1–5 structure
Pre-IND feedback — if a Type B pre-IND meeting occurred, address each FDA comment explicitly