⚠️ Regulatory Reference

PV Compliance Requirements
you need to know

A plain-English reference guide to FDA, ICH, and EMA pharmacovigilance requirements — written for drug safety professionals at emerging biotech companies. Updated to reflect the latest regulatory guidance.

Last updated February 2026 · All deadlines verified against FDA.gov

Critical Deadline: FDA E2B(R3) Mandatory Compliance — April 1, 2026

The FDA published its final guidance on April 1, 2024, requiring electronic submission of all ICSRs (both IND premarket and postmarketing) in ICH E2B(R3) XML format. The 24-month voluntary period ends April 1, 2026 — after which E2B(R2) and paper MedWatch submissions will no longer be accepted. Companies that have not yet transitioned need to act now. Systems must be validated before go-live.

Apr 1, 2026
Mandatory deadline
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The FDA's final guidance requires all sponsors to submit Individual Case Safety Reports (ICSRs) electronically in ICH E2B(R3) XML format — replacing the previous MedWatch PDF process for IND reports and the E2B(R2) format for postmarketing submissions.

January 16, 2024
FDA begins accepting postmarketing ICSRs in E2B(R3)
Voluntary period opens for postmarketing submissions via FAERS.
April 1, 2024
FDA publishes final guidance & begins accepting IND ICSRs in E2B(R3)
Voluntary period begins for premarketing (IND) submissions. 24-month clock starts.
Now — March 31, 2026
Voluntary submission period (active)
Companies may submit in E2B(R3) voluntarily. Once you make your first E2B(R3) submission, you cannot revert to E2B(R2) or legacy methods. Use this period to validate your system.
April 1, 2026
Mandatory compliance — E2B(R3) required for all ICSRs
E2B(R2) no longer accepted for postmarketing ICSRs. Paper MedWatch (Form 3500A) no longer accepted for IND safety reports. All submitters must be in E2B(R3) XML format.
Who is affected
Any company with an active IND or marketed drug/biologic product submitting ICSRs electronically to FDA
Companies submitting via Safety Reporting Portal (SRP) manually are not affected by the database-to-database E2B requirement.
Submission mechanism
FDA Electronic Submissions Gateway (ESG) via database-to-database XML transmission
Requires ESG WebTrader or gateway account. Validate XML files with the FDA E2B(R3) Validator tool before submission.
Key change for IND sponsors
Replaces MedWatch Form 3500A PDF + Form 1571 cover letter process entirely
No longer need to submit in eCTD format or notify FDA project manager once submitting via SRP or ESG.
Exceptions
Cosmetic SAERs (MoCRA) continue using E2B(R2). Some aggregate/summary report types have separate requirements.
Findings from animal/in vitro testing and increased occurrence rates under 21 CFR 312.32(c)(1)(iii-iv) have different reporting pathways.
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Once you start, you cannot go back. FDA's guidance states that once a sponsor makes their first E2B(R3) submission during the voluntary period, they may not revert to legacy methods or E2B(R2). Ensure your system is fully validated before your first live submission.

AE Connect is E2B(R3) ready out of the box

No XML configuration required. AE Connect generates compliant E2B(R3) files automatically from every case — with built-in FDA regional data elements and validation before transmission.

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Under 21 CFR 312.32, IND sponsors are required to report serious and unexpected adverse drug reactions to the FDA within strict timeframes. The clock starts from the date the sponsor first becomes aware of information that meets reporting criteria — not the date of internal triage completion.

Report Type Criteria Deadline Format
Expedited — Fatal/Life-Threatening Serious, unexpected, and reasonably possibly related to study drug, AND fatal or immediately life-threatening 7 calendar days E2B(R3) from Apr 2026
Expedited — Serious Unexpected Serious, unexpected, and reasonably possibly related to study drug (not fatal/life-threatening) 15 calendar days E2B(R3) from Apr 2026
Follow-up Reports Additional information received on a previously submitted expedited report 15 calendar days E2B(R3) from Apr 2026
IND Annual Report Summary of all IND safety information for the year Within 60 days of anniversary Narrative / eCTD
Serious adverse event (SAE) defined as
Death, life-threatening, hospitalization (or prolonged), disability/incapacity, congenital anomaly, or other medically significant event
"Unexpected" defined as
Not listed in the Investigator Brochure (IB), or listed but with a nature or severity inconsistent with the IB description
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Clock starts at sponsor awareness. The 7-day and 15-day clocks begin when any employee of the sponsor (or CRO acting on behalf of the sponsor) first becomes aware of a report that meets expedited reporting criteria. Delays in internal triage do not pause the clock.

  • !Establish written SOPs for initial case triage with defined day-zero determination
  • !Track each case's 7-day and 15-day deadlines from the moment of receipt
  • !Assess seriousness, expectedness, and causality for every incoming report
  • !Notify all active investigators of expedited IND safety reports via IND Safety Letter
  • !Maintain full audit trail of case receipt, review actions, and submission date/time

Never miss a 15-day deadline again

AE Connect automatically sets a case clock the moment a report is received, with escalating alerts at day 7, 10, and 13. Your team always knows exactly where every case stands.

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ICH E2B(R3) is the international standard for electronic transmission of Individual Case Safety Reports. Developed by the International Council for Harmonisation (ICH), it defines the XML structure, controlled terminology, and data elements required to submit ICSRs to health authorities globally — including FDA, EMA, Health Canada, TGA, and PMDA Japan.

Format
XML (HL7 ICSR message structure)
ICH-compliant XML files submitted via regional gateways. FDA uses the Electronic Submissions Gateway (ESG); EMA uses the EVWEB or XEVMPD gateway.
Terminology
MedDRA (Medical Dictionary for Regulatory Activities) — required for all adverse event coding
MedDRA v27 is the current version. Coding must include PT (Preferred Term), SOC (System Organ Class), and LLT (Lowest Level Term).
Core data sections
N: Transmission identification • A: ICSR identification • B: Primary source(s) • C: Sender • D: Patient characteristics • E: Reaction(s) • F: Study identification • G: Drug(s) information • H: Narrative
Regional customization
FDA-specific regional elements include NDC product identifiers, DUNS numbers, and IND study routing (CDER vs CBER)
EMA has its own regional elements for EudraVigilance. Both extend the ICH core with region-specific controlled terminology.

E2B(R3) vs E2B(R2) — what changed? R3 introduces structured XML vs R2's SGML format, expanded data elements for product identification (ISO IDMP), improved patient data privacy controls, support for combination products and medical devices, and alignment with global regulatory authority requirements. The new format enables automated data analysis that was impossible with PDF submissions.

E2B(R3) compliance built in — not bolted on

AE Connect generates valid E2B(R3) XML files automatically, pre-populated with FDA regional data elements. Validate before transmission with one click.

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21 CFR Part 11 establishes the FDA's requirements for electronic records and electronic signatures used in regulated environments. Any pharmacovigilance software that creates, modifies, maintains, archives, retrieves, or transmits case records must comply with Part 11 — including your adverse event management system.

Requirement What it means in practice AE Connect
Audit Trail Timestamped, operator-attributed record of every creation, modification, or deletion of electronic records — not overrideable by users ✓ Included all plans
Electronic Signatures Signatures must be linked to their respective records, include name, date/time, and meaning of signature (e.g., "Approved", "Reviewed") ✓ Included all plans
Access Controls System must limit access to authorized individuals; unique user IDs; inactivity timeouts; controls to prevent unauthorized use ✓ 5-tier RBAC
System Validation Software must be validated to ensure accuracy, reliability, and consistent performance — documented via IQ/OQ/PQ protocols ✓ IQ/OQ docs on Scale+
Record Retention Electronic records must be retained and readily retrievable for the period required by regulation (typically the lifetime of the product) ✓ Included all plans
Computer-Generated Time Stamps Dates and times of record creation and modification must be system-generated, not user-editable ✓ Included all plans
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CSV validation is your responsibility. While AE Connect provides IQ/OQ documentation on Scale and Enterprise plans, the Computer System Validation (CSV) process must be executed and documented by your organization. Your QA team owns validation — the software vendor provides supporting documentation. Ensure your SOPs reference your validation status before use in regulated activities.

Part 11 built into every plan

AE Connect was architected for Part 11 from day one — not patched on afterward. Audit trails, e-signatures, and access controls are standard across all tiers.

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Beyond expedited reports, sponsors are required to submit periodic safety reports summarizing aggregate safety data across all cases received during a defined reporting period. For IND studies, this is the Periodic Adverse Drug Experience Report (PADER). For marketed products, it's the Periodic Safety Update Report (PSUR/PBRER).

Report Type Applicability Frequency Deadline
PADER (IND) IND sponsors with clinical trials; covers all serious and non-serious ADRs not previously reported Quarterly (first 3 years) Within 30 days of period end
PADER (IND) IND sponsors with clinical trials; after 3 years of annual reporting Annual Within 60 days of anniversary
NDA/BLA Periodic Report Holders of approved NDAs or BLAs for marketed products Quarterly (first 3 years post-approval) Within 30 days of period end
NDA/BLA Periodic Report Holders of approved NDAs or BLAs; after 3 years Annual Within 60 days of anniversary
PSUR / PBRER ICH E2C(R2) — required for products with EU marketing authorization; increasingly referenced by FDA for global products Per IBD cycle (6-month, annual, or 3-year) Within 70 days of data lock point
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PADER scope. A PADER must include all adverse drug experiences — both serious and non-serious — received during the reporting period that have not already been submitted as 15-day reports. It should also include a narrative summary of significant new safety findings and an assessment of cumulative safety data. Structured in alignment with ICH E2C where applicable.

  • Track your IND anniversary date and set calendar reminders for PADER due dates
  • Maintain a line listing of all AEs received during the period, including those reported expeditiously
  • Include a cumulative summary table and narrative signal assessment
  • Reference the IB for expectedness assessments used in the period
  • Submit via eCTD for most IND periodic reports; confirm format with your FDA project manager

Line listings and period summaries — automated

AE Connect generates exportable line listings and aggregate case summaries directly from your case database — cutting PADER preparation time from weeks to hours.

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Companies conducting clinical trials or holding marketing authorizations in the European Union must report SUSARs (Suspected Unexpected Serious Adverse Reactions) to the EMA via the EudraVigilance Clinical Trial Module (EVCTM). E2B(R3) has been mandatory for EMA submissions since 2017 — earlier than the FDA — making EU-compliant systems a prerequisite for global programs.

Reporting deadlines (clinical trials)
Fatal or life-threatening SUSARs: 7 calendar days. All other SUSARs: 15 calendar days.
Clock starts from the sponsor's initial receipt of information meeting SUSAR criteria. Identical timeline structure to FDA expedited reports.
Submission gateway
EudraVigilance (EVWEB or gateway-to-gateway via EVWEB). E2B(R3) mandatory since November 2017.
EMA gateway uses different receiver identifiers than FDA. Dual-submission requires system support for both routing configurations.
Annual Safety Report (ASR)
Development Safety Update Report (DSUR) per ICH E2F — required annually for all clinical trial sponsors with EU trials
Due within 60 days of the Development International Birth Date (DIBD). Must cover all global study data, not just EU-specific.
Post-authorization (PSUR)
Periodic Safety Update Report (PSUR/PBRER) per ICH E2C(R2) — required for marketed products with EU marketing authorization
Submitted via the EMA PSUR repository. Frequency based on the IBD-anchored EURD list (single assessment date policy).
Report Trigger Deadline Format
SUSAR — Fatal/Life-Threatening Clinical trial: serious, unexpected, causally related to IMP, and fatal/life-threatening 7 calendar days E2B(R3) required
SUSAR — Other Serious Unexpected Clinical trial: serious, unexpected, causally related to IMP 15 calendar days E2B(R3) required
DSUR (Development Safety Update) All sponsors with active EU clinical trials 60 days post-DIBD annually eCTD / EVWEB
PSUR / PBRER Holders of EU marketing authorization Per EURD list cycle PSUR repository
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Cross-reportable cases. SUSARs that are cross-reportable to both FDA and EMA (e.g., from a multinational trial) require separate submissions to each authority — with different regional data elements, receiver identifiers, and routing. Systems that don't support dual-authority submission create significant operational overhead and compliance risk.

EMA EudraVigilance integration on Scale+

AE Connect supports cross-reportable case submission to both FDA and EMA from a single case record — with authority-specific data elements handled automatically.

Ready to automate your
compliance workflow?

AE Connect handles E2B(R3) generation, deadline tracking, and audit trails — so your team stays compliant without the manual overhead.

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