How Gen AI can help the Pharmacovigilance: 

Applications of Generative AI in Pharmacovigilance

 

1. Case Processing and Data Entry

  • Automated Case Intake
    • Extract relevant(event,patient,product,COI etc) information from various structure and unstructured sources (emails, Fax, PDF documents, literature)
    • Convert unstructured data into structured E2B R2/R3 ICSR formats that can be consumed by the safety systems.
    • Identify duplicate cases through intelligent matching
    • Auto-populate case fields from source documents
  • Natural Language Processing (NLP) for Case Narratives
    • Generate consistent and comprehensive from huge case narratives for cases with multiple follow-ups.
    • Extract medical concepts and standardize terminology
    • Identify missing or inconsistent information. Any case data that does not match with Narrative.
    • Translate cases across multiple languages while maintaining medical accuracy. Handling Verbatim Local language and Case Notes Local language in the Global Safety database.

2. Safety Signal Detection and Management

  • Enhanced Signal Detection
    • Process vast amounts of real-world data to identify potential safety signals
    • Analyze patterns across multiple data sources (clinical trials, literature, social media)
    • Predict potential adverse events based on drug characteristics
    • Identify complex drug-drug interactions. Causal relationship when AE generated by taking multiple drugs that belong to different companies.
  • Literature Screening
    • Automated scanning of medical literature for safety information
    • Intelligent filtering of relevant articles
    • Extraction of key safety findings
    • Continuous monitoring of new publications

3. Regulatory Compliance and Reporting

  • Regulatory Intelligence
    • Monitor and analyze regulatory requirement changes
    • Generate compliance alerts and updates
    • Assist in preparing regulatory responses
    • Automate periodic safety update report generation
  • Quality Control
    • Validate case completeness and consistency
    • Check regulatory compliance of submissions
    • Identify potential quality issues in documentation
    • Monitor KPIs and generate quality metrics

4. Risk Management

  • Risk Assessment
    • Analyze historical safety data to predict potential risks
    • Generate risk minimization suggestions
    • Monitor effectiveness of risk minimization measures
    • Create targeted safety monitoring programs
  • Benefit-Risk Assessment
    • Process large datasets to evaluate benefit-risk profiles
    • Generate comprehensive benefit-risk assessments
    • Monitor changes in benefit-risk balance
    • Predict potential future safety concerns

5. Safety Database Management

  • Data Quality Management
    • Identify and correct data inconsistencies
    • Standardize data entries across systems
    • Maintain data integrity
    • Generate data quality reports
  • Data Integration
    • Combine data from multiple sources
    • Standardize formats across different systems
    • Enable cross-database analysis
    • Create unified safety databases

6. Communication and Training

  • Safety Communications
    • Generate draft safety communications
    • Customize communications for different stakeholders
    • Translate safety information across languages
    • Monitor communication effectiveness
  • Training and Education
    • Create personalized training materials
    • Generate case study scenarios
    • Provide interactive learning experiences
    • Assess training effectiveness

7. Process Optimization

  • Workflow Management
    • Optimize case processing workflows
    • Predict resource requirements
    • Identify bottlenecks in processes
    • Suggest process improvements
  • Resource Allocation
    • Predict workload patterns
    • Optimize staff scheduling
    • Balance workload distribution
    • Monitor productivity metrics

 

How Praxigent Build Gen AI Model:

Steps for Building a GenAI Model for Adverse Event Signal Detection

Data Preparation:

  • The first step is to transform this data into a structured dataset that can be used for model training. You’ll need to prepare features like drug names, reported adverse events, patient demographics, reporting time, etc.

Feature Engineering:

  • Drug: Categorical variable representing the drug.
  • Adverse Event: Categorical variable representing the adverse event (e.g., fatigue, nausea, headache).
  • Date of Event: If timestamps are available, this can be used to detect trends over time.
  • Other Factors: Variables like patient age, gender, or comorbidities (if available) can help detect specific patterns related to adverse event reporting.

Model Choice:

  • Natural Language Processing (NLP): Since adverse event narratives are often in free text format, NLP techniques can be used to extract insights. You could use a transformer-based model like GPT-3 or BERT to detect patterns in the adverse event descriptions.
  • Anomaly Detection: A GenAI model could be trained to detect anomalies in the frequency or type of adverse events for each drug. Signal detection could involve identifying events that deviate from expected patterns.

Training a Machine Learning Model:

  • If you have a sufficient dataset, you can train a machine learning model like Random Forest, XGBoost, or Neural Networks to predict the likelihood of an adverse event based on certain drug attributes.
  • The Generative AI part comes into play when generating hypothetical cases or predicting future adverse events based on current trends in the data.

Evaluation:

  • Metrics like accuracy, precision, recall, and F1 score can be used to evaluate the model's performance.

Deployment:

  • Once trained, the model could be integrated into a pharmacovigilance system to automatically flag signals that warrant further investigation.

FDA FAERS 2023 Q1 Heatmap for Top 10 Drugs reported as AE to FDA:

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