Clinical trials
Volunteers clinical trials
Below are recruiting volunteers clinical trials, each written for real people, not researchers. We’re tracking 526 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT02446262Recruiting
Study of how the brain and mind shape pain in healthy adults
This study tests how people sense heat and pain, and how the brain and emotions may influence that experience. It is designed for healthy adults and may involve training sessions and (for some parts) MRI scanning.
Bethesda, MarylandAges 18–50 - NCT02543983RecruitingPhase 2
Brain scan and ketamine study for suicidal thoughts
This trial studies how ketamine affects the brain in people dealing with suicidal thoughts or an active suicide crisis. It uses questionnaires, consent testing, and brain imaging to look for biological changes that may relate to symptom improvement.
Bethesda, MarylandAges 18–70 - NCT02639299Recruiting
Screening healthy adults for malaria vaccines and drug studies
This study screens healthy adults to see who can join future malaria vaccine or investigational malaria drug studies, including a controlled malaria exposure. It may help researchers test safer vaccines/drugs, but participation requires good health and strict medical eligibility.
Bethesda, MarylandAges 18–50 - NCT02327884Recruiting
Study saliva and related diseases to learn health patterns
This study looks at diseases that involve the salivary (saliva) glands, and may also include people with active hepatitis, oral cancer, or healthy adults. Researchers collect blood, urine, saliva, and sometimes tissue to better understand what’s happening and how these conditions relate to saliva and oral health.
Bethesda, MarylandAges 4–100 - NCT02390765Recruiting
Study of growth, weight, and behavior in children
This study looks at how children’s growth and weight relate to thinking, mood, and behavior. It may help researchers understand what patterns affect health and development so they can guide better support for families.
Bethesda, MarylandAges 8–100 - NCT02317328Recruiting
Adaptive eye imaging to take very detailed retinal pictures
This study uses special “adaptive optics” equipment to capture very detailed images of the retina (the nerve layer at the back of the eye). It may help improve eye tests for people with eye disease and also includes some healthy volunteers.
Bethesda, MarylandAges 12–120 - NCT01386424Recruiting
Healthy adult check-in for future infectious-disease volunteer studies
This study enrolls healthy adults to help set up future research studies about infectious diseases. If you qualify, you may be asked to join later “healthy volunteer” experiments and allow your samples to be stored for future research.
Bethesda, MarylandAges 18–65 - NCT01629108Recruiting
Hearing and balance test study for healthy volunteers
This study measures normal (expected) results from hearing and balance tests in healthy people. It may help researchers and clinics better understand what “normal” looks like so future patients’ test results can be interpreted more accurately.
Bethesda, MarylandAges 5–80 - NCT01375530Recruiting
Volunteers needed for future medical research testing
This trial is looking for adult volunteers who agree to have blood and/or tissue samples collected and stored for later studies. It may help researchers better understand the immune system and future treatments, although it is mainly a sample-storage study rather than a specific drug treatment.
Atlanta, GeorgiaAges 18–60 - NCT01399385Recruiting
New heart imaging to detect heart disease
This study tests new imaging techniques, like MRI and CT scans, to better see heart and blood vessel problems. It may help doctors find heart disease earlier and guide treatment.
Bethesda, MarylandAges 18–100 - NCT01900132Recruiting
Electrical muscle testing for neuromuscular disorders
This study uses a quick, painless electrical test to measure muscle health in people with nerve or muscle disorders and in healthy volunteers. It aims to learn how these measurements change over time, which may help diagnose and monitor these conditions better.
Bethesda, MarylandAges 2–110 - NCT01568697Recruiting
Studying gum disease in people with immune and genetic differences
This study looks at how mouth bacteria and the immune system may work together to cause gum disease (periodontitis), especially in people with certain genetic immune problems. It may help researchers understand what drives severe gum disease and how to better monitor or treat it in the future.
Bethesda, MarylandAges 7–100 - NCT00071045Enrolling by invitation
Tissue Collection From Cancer and Blood Disorder Patients
This study collects tissue samples from patients with cancer or blood disorders, and from their matching family members who might donate stem cells for transplant. The samples help researchers understand these diseases and develop better treatments.
Bethesda, MarylandAges 2–100 - NCT01130545Recruiting
MRI testing of different scan methods in older adults
This study tests different MRI imaging techniques to improve how scans look and measure targets. You may be able to join with or without a contrast dye, and you’ll need to travel to the NIH for follow-up visits.
Bethesda, MarylandAges 18–100 - NCT01266577Recruiting
MRI study measuring brain and muscle chemical levels
This study uses MRI techniques to measure natural chemical “metabolites” in the brain and muscle. You may be able to join if you’re generally healthy and can safely complete a long MRI scan.
Bethesda, MarylandAges 18–65 - NCT00114647Recruiting
Blood draw to collect plasma or white blood cells for lab tests
This trial uses a special blood-removal procedure called apheresis to collect either plasma or white blood cells for laboratory research. It may help scientists understand infection or immune-related processes by providing specific blood components for study.
Bethesda, MarylandAges 18–100 - NCT00428987Recruiting
Study of body and behavior traits in weight groups
This study looks at how physical traits and everyday behaviors differ among people who are overweight, obese, or in the normal-weight range. It may help researchers better understand risk factors related to weight and health.
Bethesda, MarylandAges 18–100 - NCT00090662Recruiting
Healthy volunteer sample collection for research
This study collects blood, urine, stool, and other samples from healthy people to help researchers learn more about diseases and develop better treatments. If you join, you might donate samples like blood or, in some cases, bone marrow or skin, depending on your health and the study's needs.
Bethesda, MarylandAges 18–85 - NCT00001620Enrolling by invitation
NIH screening to see which blood studies fit you
This study is a general screening step at the NIH Clinical Center to check whether you might qualify for other NHLBI research protocols. It helps match you (or a donor/healthy volunteer) to the right study and confirms you can consent to participate.
Bethesda, MarylandAges 2–100 - NCT00004577Recruiting
New Brain Imaging Methods Research Study
This research study tests new ways to take detailed pictures of your brain using MRI (a safe imaging machine). You'll help researchers develop better imaging methods by lying still in the scanner for up to 2 hours.
Bethesda, MarylandAges 18–120 - NCT00001360Recruiting
Studying brain blood flow during thinking
This study looks at how blood flow in the brain changes while you are thinking. You will do tasks while having brain scans to help researchers understand normal brain activity.
Bethesda, MarylandAges 18–65 - NCT00182858Recruiting
Provide tissue or blood samples for future research
This study collects tissue or blood samples from adults (and some healthy volunteers) to help researchers learn more and plan future studies. If you qualify, your samples may be used to test new ideas related to your health or for exploratory research.
Baltimore, MarylandAges 18–99
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Common questions
- Are there clinical trials for volunteers?
- Yes. Clin2 currently lists 526 recruiting volunteers studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a volunteers trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a volunteers trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.