Platelet Volunteers, Longitudinal and Multi-omic Study
Recruiting now
Conditions studied: Thrombosis
In brief
Background: Platelets are a type of blood cell that play a critical role in bleeding, forming blood clots, and healing. Researchers want to know more about platelets work in healthy people. They want to look at how platelets clump together, how blood clots, and how genes and proteins work. They also want to study how these processes change over time and how they are affected by factors such diet, exercise, weight, and new health problems. Objective: To study how platelets function in healthy people. Eligibility: Healthy people aged 18 years and older. Design: Researchers will review participants medical history. They will ask about the participant s family history and any drugs they take. Participants will have a clinic visit once every 6 or 7 months for 10 years. Each visit will be 2 to 3 hours. At each visit, participants will have several tests and procedures: A physical exam, including vital signs. Hip and ankle circumference will be measured. Urine collection. Blood tests. About 10 tablespoons of blood will be drawn. Participants will be asked to fast for 10 hours and avoid drugs like aspirin or Advil for 7 days before each draw. Some of the blood may be used for gene studies. Some may be used to create stem cells for research. Stem cells are cells that can be used to make other types of cells. Surveys and questionnaires. Participants will answer questions about habitual activity, diet, smoking, drugs and alcohol, sleep, illness, and other health issues. These surveys may be done online, via email, or by phone.
Key facts
- Study ID
- NCT07137429
- Run by
- National Heart, Lung, and Blood Institute (NHLBI)
- People needed
- 400
- Starts
- 2026-03-26
- Expected to finish
- 2041-09-15
- Last updated by the study team
- 2026-07-31
Who can join
Age: 18 and older, up to 100. Sex: any. Healthy volunteers: accepted.
You may not qualify if…
- An individual who, by self-report, meets the following criteria will be excluded from participation in this study:
- Current pregnancy or lactation
- Active malignancies known, active known auto-immune disease, known major CVD (e.g., heart attack, stroke, venous thromboembolism, heart failure), severe bleeding history, on regular P2Y12 inhibitors or other antiplatelet treatments for a clinical reason, uncontrolled hypertension or diabetes
Where it is running
- National Institutes of Health Clinical Center — Bethesda, Maryland, United States (enrolling)
Full record on ClinicalTrials.gov
Trial information comes from ClinicalTrials.gov and is refreshed daily. TrialsForMe does not provide medical care and does not run the studies it lists.