Published on 19/12/2025
MedDRA and WHO-ART: Coding Standards in UMC Reporting
The Uppsala Monitoring Centre (UMC) plays a critical role in global drug safety and pharmacovigilance. Understanding and implementing the coding standards of MedDRA and WHO-ART is essential for regulatory compliance in reporting adverse drug reactions. This step-by-step guide is tailored for pharmaceutical professionals, including those in regulatory affairs, quality assurance, quality control, validation, clinical research, and pharmacovigilance. Here, we will discuss the phases involved in effectively using MedDRA and WHO-ART, ensuring adherence to regulatory expectations.
Step 1: Understanding MedDRA and WHO-ART
MedDRA (Medical Dictionary for Regulatory Activities) and WHO-ART (World Health Organization Adverse Reaction Terminology) are two of the primary coding systems used internationally to classify adverse events related to pharmaceuticals. These coding standards are crucial for harmonizing data related to drug safety and efficacy across various jurisdictions.
1. **MedDRA Overview**: MedDRA is a standardized medical terminology developed under the auspices of the International Conference on Harmonisation (ICH). It is used for the classification of adverse events in clinical trials and post-marketing vigilance. The terminology is structured in a hierarchical
2. **WHO-ART Overview**: WHO-ART is another coding dictionary created by the World Health Organization. It is primarily used for grouping and reporting adverse drug reactions. WHO-ART enables the review and analysis of safety data at a higher level but is less detailed than MedDRA in certain respects. The WHO considers patient safety in data collection and assessment to be paramount, hence the development of these standards.
3. **Differences Between MedDRA and WHO-ART**: It’s imperative to recognize the distinctions between these coding systems. While both aim to facilitate signal detection and streamline pharmacovigilance, MedDRA offers a more detailed medical terminology compared to WHO-ART. Understanding which dictionary to use based on reporting requirements can affect regulatory compliance and data interpretation.
4. **Documentation Expectations**: When employing these coding standards, regulatory compliance consulting firms should ensure that proper documentation and coding practices are established and maintained. This includes coding adverse events accurately based on the definitions in MedDRA and WHO-ART to streamline submission processes. Regular training and updates on coding conventions are also essential for maintaining high standards.
Step 2: Coding with MedDRA
Coding adverse events using MedDRA is an essential skill for professionals in pharmacovigilance. It’s vital that the clinical data management team accurately applies this coding standard to ensure compliance with regulatory body expectations. This phase outlines the practical actions required for using MedDRA effectively.
1. **Training and Certification**: Begin by ensuring that all team members involved in coding adverse events undergo thorough training on MedDRA. Understanding its hierarchical structure, including SOC, HLGT, HLT, PT, and LLT, is key. Official training programs are available to familiarize your team with the nuances of MedDRA terminology.
2. **Utilization of Resources**: Leverage resources such as the MedDRA MSSO (Maintenance and Support Services Organization) available online. Use the MedDRA Browser tool for accessing the latest version of the Code and its updates. It is important to keep abreast of any changes, as these can significantly impact coding practices.
3. **Reference Documentation**: Create and maintain a repository of reference documents, including coding conventions and guidelines for different types of adverse events. This documentation should outline clear definitions for each coding term, helping ensure consistent use among team members. Including checklists for coding ensures that nothing is overlooked throughout the process.
4. **Data Entry Procedure**: Establish a standard operating procedure (SOP) for coding adverse events. This SOP should encompass everything from data receipt to coding, ensuring clarity at each stage. Follow the steps: receipt of reports, initial assessment, and then detailed coding based on MedDRA. Designate responsibility for cross-verifying codes assigned by the data entry team.
5. **Quality Assurance Checks**: Implement regular auditing and quality checks of coded data against MedDRA guidelines. These checks should not only assess the accuracy of codes assigned but also compare them against previous coding for the same or similar events to maintain consistency.
Step 3: Using WHO-ART in Context
In addition to MedDRA, employing WHO-ART effectively requires understanding its structure and best practices for integration into your pharmacovigilance processes. This section will guide you through comprehensively using WHO-ART.
1. **Understanding WHO-ART Hierarchy**: Familiarize your team with the categorization of terms within WHO-ART. Like MedDRA, WHO-ART also has a hierarchical structure, but its terms are less detailed and do not offer the same granularity. Knowing when to select WHO-ART over MedDRA for reporting is crucial.
2. **Establishing Reporting Protocols**: Create protocols for which coding dictionary to use in various scenarios. Many regulatory submissions may require using MedDRA for detailed analysis and WHO-ART for broader metrics. Establish clear guidance on the preference of terms to ensure compliance with your regulatory obligations.
3. **Template Utilization**: Develop template forms that incorporate both MedDRA and WHO-ART in streamlining the data entry process. By offering dual options for coding, it allows coders to quickly choose and apply the appropriate codes during adverse event reporting. Maintaining up-to-date templates is also critical as both coding dictionaries evolve.
4. **Integrating with VigiBase and VigiFlow**: Recognize how tools like VigiBase and VigiFlow can facilitate the integration of coding standards into drug safety and monitoring practices. VigiBase is the database maintained by the WHO covering adverse event reports, and VigiFlow is utilized for managing the reporting process. Ensuring that coding complies with the terminology within these systems assures regulatory compliance while enhancing signal detection capabilities.
5. **Feedback Mechanisms**: Encourage regular feedback from coders and other stakeholders involved in data entry and reporting. Incorporating their insights can uncover process inefficiencies or misinterpretations, fostering an organization-wide culture of continuous improvement and compliance with WHO coding standards.
Step 4: Submitting Reports to Regulatory Authorities
Once adverse events have been coded accurately using MedDRA or WHO-ART, the next crucial step is preparing and submitting these reports to regulatory authorities. Compliance with submission guidelines is vital for regulatory oversight. This section elaborates on the submission procedures.
1. **Understanding Regulatory Requirements**: Familiarize yourself with specific reporting requirements of various regulatory bodies, including the FDA and EMA. Each has its guidelines regarding the use of coded terms in safety reports. Ensure your compliance team reviews the most current guidelines to capture any changes affecting reporting methodologies.
2. **Report Structure**: Develop a clear and structured report format for presenting adverse event results to regulatory bodies. This usually includes sections detailing the methodology, outcomes, coding details, and conclusions drawn from the data. Ensure that the report effectively bridges the coding results to actionable insights regarding drug safety.
3. **Utilizing EHR and Clinical Data**: Integrating Electronic Health Records (EHR) and other clinical data management systems can facilitate the collection and reporting of adverse events. Ensure that your system supports the easy export of coded information based on MedDRA and WHO-ART standards into the report format expected by regulatory agencies.
4. **Timelines for Report Submission**: Establish internal timelines for report preparation and review processes to ensure timely submissions. Different agencies have varying reporting timelines—understanding these can prevent compliance lapses. Implementing a risk management approach for varying timelines can also be beneficial.
5. **Post-Submission Monitoring**: After submission, a follow-up mechanism should be established to track report evaluation by regulatory authorities. Monitoring responses and requests for additional information is necessary to stay informed and ensure that any questions are quickly addressed, maintaining ongoing communication with regulators.
Step 5: Post-Approval Commitments and Signal Detection
After successfully submitting adverse event reports, continuous monitoring and commitment to ongoing responsibilities in pharmacovigilance are vital. This phase deals with long-term compliance strategies after product approval.
1. **Post-Marketing Surveillance**: After a drug has been approved, it is essential to continue monitoring its safety profile through post-marketing surveillance. This includes capturing new adverse event reports and ensuring they are coded accurately using the selected dictionaries. Establish protocols that specify the types of data to be collected and how to monitor long-term safety claims.
2. **Signal Detection Activities**: Incorporate signal detection methodologies into your pharmacovigilance practices. Utilizing software tools, ensure that you are equipped to examine coded data for emerging trends or signals that may indicate unforeseen safety issues about your product. Regularly analyze this data for discrepancies or notable trends that may require further investigation or regulatory action.
3. **Commitments Documentation**: Document post-approval commitments in a thorough manner to reflect compliance with regulatory requirements. This may include structured ongoing communication with stakeholders, as well as detailed reports highlighting feedback from market data and the implications for consumer safety.
4. **Risk Management Planning**: Based on coded data and signals detected, implement risk management plans to minimize any identified risks. Ensure these plans align with regulatory strategies and include actions for risk communication to healthcare professionals and patients.
5. **Continuous Training and Development**: Engage in regular training for staff on both MedDRA and WHO-ART, ensuring updates on regulatory guidelines and changes are visible and clear. Continuous education helps maintain efficacy in reporting and adherence to both coding standards, ultimately leading to improved patient safety outcomes.