# Causal AI for Clinical Trials Scales to 400 Million Patient Records

- slug: causal-ai-for-clinical-trials-scales-to-400-million-patient-records
- date: 2026-04-06
- category: Artificial Intelligence

A new model trained on 400 million patient records simulates what would happen if a patient were older, or had elevated kidney markers, or received a different drug. The catch: it mostly reproduced what clinicians already knew.

---