Regfo
Module 5clinicalnda● High priority

5.3.3.4 — Extrinsic Factor PK Study Reports

PK studies evaluating extrinsic factors (drug interactions, food, smoking)

Requirements by Phase

Phase 1
N/A
Phase 2
N/A
Phase 3
optional
NDA
required

PK studies evaluating extrinsic factors (drug interactions, food, smoking)

Requirements by Phase

IND Phase 3: optional NDA: required

Content Requirements

  • Drug-drug interaction clinical studies
  • Food effect PK studies
  • Formulation effect PK studies
  • Full CSR per ICH E3 format

Expected Deliverables

  • Clinical DDI study report(s) (ICH E3 format)
  • Food effect study report
  • Formulation PK study report (if applicable)

ICH Guidelines: E3, M4E(R2)

Source: FDA DDI Guidance; FDA Food-Effect Guidance

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