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Signal Detection
Disproportionality
Clinical Context
Automation
Triage Rules

Signal Detection That Sees Around Corners

Better signal detection

# Signal Detection That Sees Around Corners

Assyro Team
4 min read

Signal Detection That Sees Around Corners

Safety teams drown in alerts, yet true risks hide in the noise. Without a

structured approach, meaningful signals surface late and regulatory confidence

fades.

This playbook sharpens pharmacovigilance focus. You will combine analytics with

clinical context, apply clear triage rules, automate monitoring, and trend

outcomes so you act on the right data at the right time.

Why advanced signal detection matters

Patient protection: Early detection prevents harm and supports timely risk

mitigation.

Regulatory expectations: Agencies expect proactive detection, documented

assessments, and transparent decision making.

Resource efficiency: Targeted focus cuts review fatigue and keeps scientists

working on the highest-value analyses.

Label integrity: Strong detection feeds into labeling updates and risk

management plans before authorities ask.

Step 1: Map your signal ecosystem

• Inventory signal sources: spontaneous reports, literature, clinical trials,

observational studies, social listening, and digital health feeds.

• Document data quality, update frequency, and ownership for each source.

• Identify bottlenecks where analysts spend time on low-value activities.

Step 2: Pair analytics with clinical context

• Deploy disproportionality analyses (PRR, ROR, EBGM) and Bayesian models to

surface statistical outliers.

• Overlay medical context: expected background rates, disease prevalence,

class effects, and known product profile.

• Involve clinicians early to interpret narratives, severity, and plausible

mechanisms.

• Use dashboards that display both statistical metrics and clinical annotations

so decisions consider both dimensions.

Step 3: Implement transparent triage rules

• Define thresholds for seriousness, novelty, geographic spread, and temporal

patterns.

• Automate scoring to categorize alerts as informational, under evaluation, or

potential signal.

• Document decision trees and escalate edge cases to a multidisciplinary review

team.

• Capture rationale for every triage decision to support inspections and

knowledge transfer.

Step 4: Orchestrate signal review boards

• Schedule regular signal management meetings involving safety physicians,

epidemiologists, statisticians, regulatory partners, and quality.

• Review open signals, prioritize actions, and assign owners.

• Track commitments in a central tool, linking to PSUR/PBRER updates, label

changes, or risk minimization measures.

• Conduct after-action reviews for significant signals to refine thresholds and

processes.

Step 5: Automate monitoring and feedback loops

• Implement continuous monitoring dashboards with real-time alerts for metric

thresholds.

• Integrate literature and database surveillance tools to reduce manual searches.

• Use natural language processing (NLP) to pre-screen narratives while keeping

final judgement with experienced scientists.

• Feed outcomes back into algorithms—if a false positive persists, adjust

triggers; if a late signal emerges, update detection rules.

Metrics that prove maturity

• Time from signal trigger to documented decision.

• Percentage of alerts closed as noise versus escalated to signal evaluation.

• Number of signals leading to label change, risk mitigation, or safety

communication.

• Compliance with internal timelines for PRAC/DSMB reporting.

• Analyst workload distribution (percentage spent on high-priority signals).

60-day roadmap

1. Weeks 1-2: Map current signal sources, review tool capabilities, and capture

pain points from safety scientists.

2. Weeks 3-4: Refresh triage criteria with cross-functional leads and update

SOPs.

3. Weeks 5-6: Pilot combined analytics-plus-clinical review on a priority

product. Document improvements in time to decision and noise reduction.

4. Weeks 7-8: Deploy dashboards, train teams, and establish governance cadence

for ongoing refinement.

Frequently asked questions

What should be automated? Statistical screening, data aggregation, and

routine alerts. Human judgement remains essential for causality assessment and

narrative interpretation.

How do we integrate global data? Harmonize coding (MedDRA, WHO-DD), align

time zones, and define regional responsibilities while maintaining a global

oversight board.

How often should thresholds be recalibrated? At least annually, and whenever

product profile changes or new data sources are added.

Can small teams implement this? Start with a focused product set, use

vendor tools for analytics, and scale governance as you demonstrate value.

Sustain the win

Hold monthly signal review councils, update rules as portfolios evolve, and

retrain analysts whenever tools or data sources change. Recognize teams that spot

and resolve signals early to keep vigilance top of mind. With the right balance of

analytics and clinical insight, your signal program sees around corners.