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Supplement & Variation Creation Playbook

Master the art of creating FDA supplements and EMA variations for post-approval changes with AI automation

📖 15 min readLast updated: November 2025

Quick Reference: FDA vs. EMA Post-Approval Changes

Change TypeFDA SubmissionFDA TimelineEMA SubmissionEMA Timeline
Minor admin changesAnnual ReportWithin 60 days of anniversaryType IA NotificationImplement immediately, notify within 12 months
Minor quality changesCBE-30 (Changes Being Effected)30 days before implementationType IA/IB VariationIA: immediate, IB: 30 days
Moderate changesCBE-0 (Changes Being Effected)Immediate, but FDA must be notifiedType II Variation60 days review (can extend to 90)
Major changes (new indication, formulation)Prior Approval Supplement (PAS)6 months (standard) or 4 months (priority)Type II Variation (or new MAA)60-90 days (or full MAA review)

FDA Supplement Types

The FDA provides four main mechanisms for submitting post-approval changes, each with different timelines and requirements:

30

CBE-30: Changes Being Effected in 30 Days

Submit at least 30 days before implementing the change.

Typical Use Cases:

  • Changes to analytical procedures (e.g., new HPLC method)
  • Addition of new manufacturing site (non-sterile)
  • Extension of expiration dating period (with supporting stability data)
  • Changes to labeling (minor safety updates)

Required Documentation:

Cover LetterAnnotated LabelingSupporting Data (stability, validation)Module 3 Updates

⏱️ DossiAIr Timeline:

4-6 hours
with AI automation
vs
3-5 days
traditional manual
0

CBE-0: Changes Being Effected Immediately

Implement change immediately, but notify FDA at time of implementation or annual report.

Typical Use Cases:

  • Addition of new safety information to labeling (black box warnings)
  • Deletion of false, misleading, or unsupported labeling claims
  • Urgent quality/safety-related manufacturing changes
PAS

PAS: Prior Approval Supplement

FDA must approve before implementation. Full review process similar to original NDA.

Typical Use Cases:

  • New Indication: Expanding drug use to new patient population or disease
  • New Dosage Form: Tablet → Injectable, IR → ER
  • New Manufacturing Site: Sterile products or API manufacturing
  • Major Formulation Change: Change in active ingredient, strength, or excipients affecting bioavailability
  • New Route of Administration: Oral → IV, topical → transdermal

Required Documentation (Extensive):

Clinical (if applicable)
  • • Pivotal efficacy studies
  • • Safety studies
  • • Pharmacokinetic data
CMC (Quality)
  • • Updated Module 3 (full S-P sections)
  • • Comparability protocols
  • • Validation data

⏱️ Timelines:

1-2 days
DossiAIr generation
6 months
FDA standard review
4 months
FDA priority review
AR

Annual Report

Yearly compilation of minor changes, stability data updates, and post-market safety information.

What to Include:

  • Summary of all distributed units (domestic and export)
  • Labeling currently in use
  • Summary of significant new information (adverse events, stability)
  • Status of ongoing post-marketing studies
  • Log of outstanding regulatory business (supplements pending, FDA requests)

📅 Deadline:

Within 60 days of the anniversary date of NDA approval

EMA Variation Types

The European Medicines Agency (EMA) classifies post-approval changes into three types based on risk and complexity:

IA

Type IA: Immediate Notification

Minor changes with no significant impact. Implement immediately, notify within 12 months.

Examples:

  • Administrative changes (contact details, company name)
  • Minor editorial changes to labeling (typos, formatting)
  • Deletion of manufacturing site no longer in use
IB

Type IB: 30-Day Notification

Minor changes requiring competent authority notification before implementation.

Examples:

  • Minor changes to synthesis of API
  • Changes to test procedures (with equivalent or better sensitivity)
  • Extension of shelf life (with supporting data)

⏱️ Timeline:

Submit → Wait 30 days → Implement (unless rejected)

II

Type II: Full Assessment

Significant changes requiring full regulatory assessment before implementation.

Examples (Similar to FDA PAS):

  • New therapeutic indication
  • Change in manufacturing process potentially affecting quality
  • Major changes to specifications
  • New pharmaceutical form or strength

⏱️ Assessment Timeline:

60 days
Standard assessment
90 days
Extended assessment (if clock stop)

Supplement Generation with DossiAIr

🤖 Intelligent Change Detection

DossiAIr automatically compares your current approved dossier with proposed changes to determine the appropriate submission type.

Step 1: Upload Change
Describe the change or upload updated documents
Step 2: AI Classifies
System recommends CBE-30, PAS, Type II, etc.
Step 3: Generate
AI drafts compliant supplement documentation

✅ What DossiAIr Generates

  • Cover letter with change description and justification
  • Annotated labeling (track changes showing edits)
  • Updated eCTD modules (only affected sections)
  • Cross-reference updates across all modules
  • Validation report (eCTD structure, links)

⚡ Time Savings

CBE-3085% faster
PAS (Prior Approval)80% faster
Annual Report75% faster

Automate Your Post-Approval Changes

Generate FDA supplements and EMA variations 85% faster with DossiAIr