Drug safety and pharmacovigilance

E2B Cases: Classification, Differences, and Processing Explained

Pharmacovigilance Toolkit
June 12, 2026 Bala 5 min read 0 Comments
Table of Contents

    This blog features:

    1. An overview of E2B cases in pharmacovigilance and their significance
    2. Key differences between E2B cases and other types of pharmacovigilance cases
    3. How E2B case processing differs from conventional case processing workflows

    Introduction

    If you work in a Drug Safety or Pharmacovigilance department, you have likely come across the term “E2B case” — whether in team discussions, case assignments, or your safety database. But what exactly makes a case an E2B case, and how does it differ from the cases you process every day?

    This article walks you through everything you need to know about E2B cases, how they are classified, and what makes their processing workflow unique

    E2B case: An overview

    In pharmacovigilance, E2B cases refer to Individual Case Safety Reports (ICSRs) that are received, exchanged, or imported electronically using the ICH E2B standard — in the form of an XML file.

    These cases are typically pre-processed or assessed at a basic level by the originating party before being transmitted. They are exchanged between companies, regulatory authorities, and partners through a defined electronic format, and are loaded directly into the receiving organization’s safety database.

    📢 Recommendation: If you are unfamiliar with the E2B standard and the differences between its versions, refer to our article: E2B(R2) and E2B(R3) — The Differences.e

    At their core, E2B cases are like any other case in pharmacovigilance — they:

    • Report adverse events
    • Contribute to patient safety monitoring
    • Follow ICH E2B guidelines
    • Are submitted to regulatory authorities

    The distinction lies entirely in how they reach your database and who processed them first.

    “E2B cases transform pharmacovigilance from manual reporting into a globally connected safety communication system.”

    E2B cases vs Other cases

    E2B CasesOther cases
    SourceReceived as an E2B XML file from a partner, MAH, or authorityReceived directly from the reporter (HCP, patient, Literature)
    Prior processingPre-processed or assessed by a third party (or any company/any other database) before your initial receiptInitiated and processed by other XML source by your company
    Data entryminimal data entry is enoughManual data entry from the source
    Case typeAny typeClassified based on the primary reporting source
    SubmissionMay already submitted or being format changed from any other requires submissionProcessed and submitted to any regulators in regular E2B formats based on regulatory

    Challenges in managing E2B cases

    While E2B cases reduce manual entry burden, they introduce their own set of challenges:

    1. Duplicate detection
    2. Follow up management
    3. MedDRA re-coding
    4. Format conversion and mapping issues in during database adoption

    E2B cases and processing

    • The adverse event report is received as an XML file, already processed by a
      third party, and is automatically imported into the safety database with
      minimal manual data entry required.
    • The E2B XML file enters the safety database through the safety system
      gateway. Once received, the report is automatically loaded into the “Incoming
      E2B Reports” tab or the ESM Staging Area of the safety database.
    • The associate then accesses the case from the Incoming Area, reviews the
      imported data for completeness and accuracy, and progresses it through the
      standard workflow — medical coding, quality review, narrative, and submission.

    Need Support with E2B Case Processing?

    At Drugvigil, we deliver specialized E2B and pharmacovigilance solutions backed by experienced safety professionals and dedicated in-house tools.

    Our services include E2B case generation, XML conversion, E2B(R2) to E2B(R3) migration, database migration, validation support, and regulatory submissions to global health authorities.

    Whether you require seamless safety data migration or reliable E2B management support, our team is equipped to streamline and strengthen your pharmacovigilance operations.

    Conclusion

    E2B cases are not a fundamentally different category of adverse event — they are the same ICSRs you work with every day, just arriving through a different channel. What sets them apart is their origin and intake method: pre-processed by a third party and delivered as an E2B XML file directly into your safety database, rather than manually entered from a source document.

    As most common safety database handling B system and more often adopting with E2B imports for easy navigation and submission.

    As regulatory expectations around electronic reporting continue to evolve — particularly with the global shift toward E2B(R3) — familiarity with E2B case handling is becoming a core competency for anyone in drug safety and pharmacovigilance. Knowing where these cases come from, what challenges they carry, and how their processing differs from standard cases will make you a more effective and confident safety professional.

    Share this article

    Leave a Comment

    Your email address will not be published. Required fields are marked *

    This site uses Akismet to reduce spam. Learn how your comment data is processed.

    Copyright © Drugvigil. All Rights Reserved.