Smartwatch ECG tested for heart risk in childhood cancer survivors
NCT ID NCT05617391
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a smartwatch ECG can predict heart muscle disease (cardiomyopathy) in adult survivors of childhood cancer as well as a standard clinic ECG does. About 1,300 survivors will have both a standard 12-lead ECG and a 30-second Apple Smartwatch ECG. The goal is to see if the two match and to build a new model using only the smartwatch ECG to predict heart risk.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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1,303 people
The number who actually took part.
- Started
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Dec 2022
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
All participants who meet eligibility criteria and consent to enrollment on the study.
- Ages
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22 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * SJLIFE participant and 22 years of age or older at time of enrollment * Participant or legal guardian is able and willing to give informed consent * At least 5 years after childhood cancer diagnosis Exclusion Criteria: * Been diagnosed with cardiomyopathy on previous SJLIFE ECG * Currently on heart medication
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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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St. Jude Children's Research Hospital
Memphis, Tennessee, 38105, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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