Decades-Long study of 121,700 nurses aims to uncover hidden heart disease triggers
NCT ID NCT00005152
First seen Jul 21, 2026 · Last updated Jul 22, 2026 · Updated 1 time
Summary
This long-term study follows over 121,000 female nurses to explore how hormones, diet, lifestyle, and genetics affect the risk of heart disease and stroke. Researchers are analyzing blood samples to create a 'metabolomic risk score' that could help predict coronary heart disease. The goal is to better understand what puts women at risk and improve prevention strategies.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could identify new biomarkers and risk scores to better predict heart disease in women.
- What could go wrong
- This is an observational study, not a clinical trial of a treatment. It can show associations but cannot prove cause and effect.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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121,700 people
The number who actually took part.
- Start date
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Aug 1980
- Expected to finish
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Jun 2029
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
See "Detailed Description"
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Female participants only
- 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.
See "Detailed Description"
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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.
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Other studies related to the condition(s) this trial covers.
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