Protocol Details

Platelet Volunteers, Longitudinal and Multi-omic Study

This study is currently recruiting participants.

Summary | Eligibility | Citations | Contacts

Summary

Number

002298-H

Sponsoring Institute

National Heart, Lung and Blood Institute (NHLBI)

Recruitment Detail

Type: Participants currently recruited/enrolled
Gender: Male & Female
Min Age: 18 Years
Max Age: 100 Years

Referral Letter Required

No

Population Exclusion(s)

Children

Keywords

PLATELET FUNCTION;
Platelet biology

Recruitment Keyword(s)

None

Condition(s)

Thrombosis

Investigational Drug(s)

None

Investigational Device(s)

None

Intervention(s)

None

Supporting Site

National Heart, Lung, and Blood Institute

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.

Eligibility

INCLUSION CRITERIA:

In order to be eligible to participate in this study, an individual must meet all of the following criteria:

-Stated willingness to comply with all study procedures, including fasting at least 10 hours before each blood draw

-Stated willingness to refrain from aspirin or non-steroidal anti-inflammatory drugs (NSAIDs) for 7 days prior to any visits

-Age >= 18 years

-In good general health as evidenced by self-reported medical history

EXCLUSION CRITERIA:

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


Citations:

Not Provided

Contacts:

Principal Investigator

Referral Contact

For more information:

Andrew D. Johnson, Ph.D.
National Heart, Lung and Blood Institute (NHLBI)
PERINI BG RM SUITE 2
73 MT WAYTE AVE
FRAMINGHAM MA 01702
(508) 663-4082
johnsonad2@mail.nih.gov
Jayson J. Grey, R.N.
National Heart, Lung and Blood Institute (NHLBI)
National Institutes of Health
Building 10
Room 5-3140
10 Center Drive
Bethesda, Maryland 20892
(240) 401-6378
jayson.grey@nih.gov
Office of Patient Recruitment
National Institutes of Health Clinical Center (CC)
Building 61, 10 Cloister Court
Bethesda, Maryland 20892
Toll Free: 1-800-411-1222
Local Phone: 301-451-4383
TTY: TTY Users Dial 7-1-1
ccopr@nih.gov

Clinical Trials Number:

NCT07137429
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