Your smartwatch may predict a heart attack days before it happens
NCT ID NCT07735338
First seen Jul 30, 2026 · Last updated Jul 31, 2026 · Updated 1 time
Summary
This trial tests whether a smartphone app called Antshrike, paired with a smartwatch, can predict heart attacks or strokes within 3-4 days in people at high risk. Participants aged 40 to 79 with existing heart disease or elevated risk will wear the smartwatch for 18 months while the app collects health and lifestyle data. The goal is to see if the app can accurately forecast cardiovascular events like heart attack or stroke in real time.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- a smartphone application called Antshrike that collects health data via a smartwatch
- What this could lead to
- If accurate, this app could give early warnings of heart attack or stroke, potentially saving lives through faster medical response.
- What could go wrong
- This is an early-stage diagnostic trial with 300 participants. The app may not be accurate enough for real-world use, and false alarms could cause unnecessary stress or medical visits.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Stanford University
Stanford, California, 94305, United States
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