Clinical trials
General Population (no Specific Condition or Disease) clinical trials
Below are recruiting general population (no specific condition or disease) clinical trials, each written for real people, not researchers. We’re tracking 10,534 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05389956Recruiting
Study links health screening results to heart and cancer risk
This study follows people who had a routine health check to learn what increases the risk of heart disease and cancer. Your answers and test results may help doctors better understand risk factors in the Korean population.
UlsanAges 19 years+ - NCT05250557Recruiting
Study heart blood-flow measurements to predict outcomes in coronary disease
This study looks at a specific heart blood-flow measurement taken during a coronary procedure to see how well it predicts future outcomes. If you had a successful pressure measurement called FFR with a tracing, your results may be analyzed to understand risk and prognosis.
SeoulAges 20 years+ - NCT03777267Recruiting
Test a brain-sensing device for stress, anxiety, or insomnia
This exploratory study tests how a wearable brain-sensing setup (with sensor leads/earbuds) works for people with stress, anxiety, or sleep problems. You may be asked to sit still during sessions and complete brief questionnaires to confirm your symptoms.
Winston-Salem, North CarolinaAges 11 years+ - NCT04873258Recruiting
Test a non-invasive tool to screen for fat-related liver disease
This study looks at a new non-invasive screening method to predict metabolic dysfunction–associated steatotic liver disease (MASLD), a condition where fat builds up in the liver. The goal is to help identify people who may be at risk without needing invasive tests.
London, LondonAges 18–80 - NCT04848090Enrolling by invitation
Genetic testing for newborns in the hospital intensive care unit
This study uses whole-genome sequencing (a DNA test that looks across the genome) for newborns in the intensive care unit when doctors suspect a genetic condition. It aims to help identify possible genetic causes of illness and improve understanding for families and clinicians.
Pittsburgh, PennsylvaniaAges Up to 1 year - NCT04774159RecruitingPhase 3
Low-dose colchicine to lower risk in leg artery disease
This trial tests whether low-dose colchicine can reduce “residual” risk—future heart and blood-vessel problems—in people with peripheral artery disease (PAD). It targets PAD symptoms and complications like poor blood flow in the legs, even after certain procedures.
New Haven, ConnecticutAges 18 years+ - NCT04844944Recruiting
Heart registry for adults with heart failure, CAD, or atrial fibrillation
This is a hospital-based study that collects standardized information about adults with specific heart conditions—heart failure, coronary artery disease, or atrial fibrillation. It may help doctors and researchers better understand these diseases and improve future care.
BerlinAges 18 years+ - NCT04684602RecruitingPhase 1/Phase 2
Study of stem cells for several short- and long-term illnesses
This early-stage study tests whether injections of mesenchymal stem cells can be safe and helpful for certain chronic (long-term) and acute (short-term) conditions. You might be considered if you can consent, are able to return for follow-up visits, and do not have key reasons that would make stem-cell treatment unsafe.
Culver City, CaliforniaAges 18 years+ - NCT04566341Enrolling by invitation
Study gut problems in Parkinson’s and changes in gut nerves
This study looks at how digestive (gut) problems happen in people with Parkinson’s and whether there are related changes in the nerve tissue in the digestive tract. It may help researchers better understand the cause of these symptoms and find new ways to monitor or treat them.
Boston, MassachusettsAges 40–85 - NCT02675959RecruitingPhase 2
Transplant with defibrotide for sickle cell disease
This trial tests a stem cell transplant from a half-matched donor using a strong conditioning regimen and a drug called defibrotide to protect organs. It aims to cure sickle cell disease in patients who have had serious complications like stroke, chest syndrome, or frequent pain episodes.
Los Angeles, CaliforniaAges 6 months–21 years - NCT03867448Recruiting
Study of Hormone Conditions and How the Body Works
This study looks at people with known or suspected hormone (endocrine) conditions. It aims to improve understanding and clinical screening so doctors can better manage these conditions over time.
Bethesda, MarylandAges 18–90 - NCT03821857RecruitingPhase 4
Study of hormone disruption effects on aging and Alzheimer’s
This trial studies how hormone (endocrine) disruption may affect aging and Alzheimer’s disease in women. It may help researchers understand why these effects can differ by sex and how to better assess or track risk over time.
Jacksonville, FloridaAges 60 years+ - NCT07736872Recruiting
Sleep apnea screening in diverse groups
This study is screening people from different backgrounds for obstructive sleep apnea (a condition where breathing stops and starts during sleep). It uses a sleep test and questionnaires to see if you might have it.
Guangzhou, GuangdongAges 18–80 - NCT03032835Recruiting
Research study for calciphylaxis skin lesions
This study collects and stores information from people with calciphylaxis, a serious condition that causes painful skin lesions. It may help researchers learn more about the disease and improve future care.
Boston, MassachusettsAges 18 years+ - NCT07632755Recruiting
Memory Training Using Movement for Early Alzheimer's Disease
This study tests whether learning memory strategies through physical movement and motor activities can help people with early Alzheimer's disease improve their memory. Researchers will compare people with early Alzheimer's to healthy older adults to see if this approach is effective.
GrenobleAges 60 years+ - NCT02830308Recruiting
Adult study evaluating endocrine and metabolic health
This trial enrolls adults with known or suspected hormone (endocrine) or metabolism-related conditions for clinical evaluation. The goal is to help doctors assess and better understand what’s causing these health problems.
Bethesda, MarylandAges 18–100 - NCT02471352Recruiting
Share skin samples for dermatology research
This study collects and stores biological samples (biospecimens) from people with skin conditions, people at risk, or healthy volunteers. It helps researchers better understand dermatologic diseases and support future skin research.
Bethesda, MarylandAges 1 day–100 years - NCT02399527Recruiting
Lymphatic problem registry for tracking outcomes
This study enrolls people with certain lymphatic (lymph fluid) conditions to collect information and track how they do over time. It may help doctors better understand outcomes and improve care.
Boston, MassachusettsAges Any age - 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 - NCT01316783Enrolling by invitation
Genetics study of obesity, diabetes, and heart risk
This study looks at genetic differences in adults from African diaspora groups to better understand risks for obesity, type 2 diabetes, and heart disease. You may help scientists learn why these conditions are more common in certain communities.
Bethesda, MarylandAges 18–120 - NCT01600378Recruiting
A study to collect health data in lung disease
This study follows adults who have suspected diffuse lung disease (abnormal changes in multiple areas of the lungs) and collects health information over time. It may help doctors better understand these lung conditions and how they progress.
SingaporeAges 21–90 - NCT07775235Recruiting
Treatment outcomes for muscle inflammation with rapid lung disease
This study looks at how well treatments work for people with muscle inflammation (myositis) that causes a fast-progressing lung condition. It may help doctors find better ways to manage this serious combination.
SingaporeAges 21 years+ - NCT07568509RecruitingEarly Phase 1
Oxytocin levels in children with pituitary disease
This study measures oxytocin (a natural hormone) levels in children who have pituitary gland problems. Researchers want to understand if children with certain pituitary conditions don't make enough oxytocin, which could help guide future treatments.
Boston, MassachusettsAges 7–21 - NCT07780890Recruiting
Measuring eye hydration with light
This study uses a non-invasive imaging technique called Brillouin hydration mapping to measure hydration levels in different parts of the eye. It aims to help doctors better understand how hydration affects eye health and disease.
Boston, MassachusettsAges 20–79
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Common questions
- Are there clinical trials for general population (no specific condition or disease)?
- Yes. Clin2 currently lists 10,534 recruiting general population (no specific condition or disease) 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 general population (no specific condition or disease) 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 general population (no specific condition or disease) 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.