상황
A clinical trial database supporting heart disease research tracks patient enrollment across study sites, longitudinal visits and observations, medication use, adverse events, and trial outcomes.
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01
Separation of enrollment from patient and trial entities to resolve many-to-many participation and track trial-specific status and treatment arm.
02
A generic observation entity under visits captures varied clinical measurements (e.g., blood pressure, biomarkers) without schema changes.
03
Adverse events and outcomes are linked to enrollment, allowing trial-level safety and efficacy analysis.
Use for research databases needing participant, protocol, site, and longitudinal data models with adverse-event tracking and outcome analysis.