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Blood Collection for Research Related to Certain Diseases Involving Blood Vessels

Collecting blood samples for research on blood vessel diseases.

Enrolling By Invitation
18 years and older
All
Phase N/A

In this study, researchers are collecting blood samples from both patients and healthy volunteers to help with research on diseases that affect blood vessels. Blood vessels are like tiny tubes that carry blood throughout your body. This study helps scientists create tests to better understand these diseases.

Eligibility: You can join the study if you are 18 years or older. However, if you have a condition like sickle cell disease, which is a blood disorder, or another type of chronic anemia, and your hemoglobin (a protein in red blood cells) is too low, you can't donate blood. For women, hemoglobin should be at least 10 g/dL, and for men, at least 12 g/dL. If you have sickle cell disease, it should be at least 6 g/dL. Everyone can donate urine samples, as there are no restrictions for that.

  • Length of Study: Participation is flexible and based on your convenience.
  • Compensation: Participants may receive compensation for their time and effort.
  • Risks: Blood collection is generally safe, with minimal risk of minor bruising.
Study details
    Sickle Cell Disease

NCT00047996

National Heart, Lung, and Blood Institute (NHLBI)

17 October 2026

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FAQs

Learn more about clinical trials

What is a clinical trial?

A clinical trial is a study designed to test specific interventions or treatments' effectiveness and safety, paving the way for new, innovative healthcare solutions.

Why should I take part in a clinical trial?

Participating in a clinical trial provides early access to potentially effective treatments and directly contributes to the healthcare advancements that benefit us all.

How long does a clinical trial take place?

The duration of clinical trials varies. Some trials last weeks, some years, depending on the phase and intention of the trial.

Do I get compensated for taking part in clinical trials?

Compensation varies per trial. Some offer payment or reimbursement for time and travel, while others may not.

How safe are clinical trials?

Clinical trials follow strict ethical guidelines and protocols to safeguard participants' health. They are closely monitored and safety reviewed regularly.
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