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 10,548 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04005976Recruiting
Genetic study for inherited aortic disease
This trial is for people with inherited (family-run) aortic enlargement or aneurysm caused by a specific DNA gene change. It uses genetic information to guide more precise care, which may help tailor monitoring and treatment for you and your family.
Newport Beach, CaliforniaAges Any age - NCT03901521Enrolling by invitation
Biobank for people with autosomal dominant polycystic kidney disease
This study collects samples and health information from adults with autosomal dominant polycystic kidney disease (ADPKD) who are having their own kidney removed. It helps researchers learn more about ADPKD and its genetic changes to support future treatments.
New York, New YorkAges 18–100 - NCT04012411Recruiting
Testing brain fluid biomarkers in Huntington’s disease
This study looks at specific “biomarkers” (measurable signs) found in cerebrospinal fluid, to better understand Huntington’s disease. The results may help researchers track the disease and improve future tests or treatments.
MontpellierAges 18 years+ - NCT03945305Recruiting
Remote ischemic conditioning for high blood pressure
This trial tests if a simple, non-invasive treatment called remote ischemic conditioning (briefly restricting blood flow to an arm) can safely lower blood pressure in people with essential hypertension. It is for adults aged 30-75 whose blood pressure is consistently high despite standard care.
Changchun, JilinAges 30–75 - NCT03831958Recruiting
Follow-up study of children cured of Cushing disease
This study checks long-term health in people who were treated successfully for Cushing disease when they were under 21. It also collects information from family members to study genetic links to pituitary tumors.
Bethesda, MarylandAges 2–90 - NCT03854318Recruiting
Study of families with suspected RUNX1 gene changes
This study follows people who have a known or suspected RUNX1 gene variant linked to FPDMM-like features. It may help improve understanding of the gene, and participants may contribute samples that researchers use for genetic testing and research.
Bethesda, MarylandAges 1 day–100 years - NCT03845036Recruiting
Diet and exercise study for leg circulation problems
This study looks at how diet changes and an exercise program may improve walking and leg symptoms in people with peripheral artery disease (PAD). You may be eligible if you have a history of claudication (leg pain with walking) and tests or treatment history show PAD.
Oklahoma City, OklahomaAges 40 years+ - NCT03854071Recruiting
Heart and health MRI testing in healthy people or patients
This study uses MRI (a scanning test) to develop new ways to measure heart function in both healthy volunteers and people with suspected or known heart disease. It may help researchers create better heart tests that could improve future diagnosis and monitoring.
Sheffield, EnglandAges 20–80 - NCT03862274Enrolling by invitation
Study of development in children with CLN2 due to TPP1 changes
This study looks at how children’s development progresses in CLN2 disease caused by a specific enzyme problem (TPP1). It may help doctors better understand outcomes and guide future care for children with this diagnosis.
Columbus, OhioAges Any age - NCT03773887Recruiting
Study of liver inflammation and healing in alcohol-related liver disease
This study compares patterns of liver inflammation and the liver’s healing ability in people with alcohol-related liver disease, using blood tests and (in most cases) a liver tissue sample. It may help doctors better understand what is happening in the liver and how it may recover.
LilleAges 18–70 - NCT03859895Enrolling by invitation
Zoledronate to help prevent Paget’s disease over time
This trial is a long-term follow-up for people who already took part in a previous study called ZiPP. It tests whether continuing treatment with zoledronate can help prevent Paget’s disease from developing or worsening.
GeelongAges Any age - NCT03809351RecruitingPhase 1
Brain tau scan add-on for people in the UAB Alzheimer studies
This trial tests an added brain imaging scan that looks for “tau” protein in people already enrolled in the UAB Alzheimer research studies. Results may help researchers better understand Alzheimer’s disease and improve future diagnosis.
Birmingham, AlabamaAges 50 years+ - NCT03800017Recruiting
Muscle strength and exercise function in lung scarring
This study looks at how well skeletal (muscle) function supports exercise in people with interstitial lung diseases (including idiopathic pulmonary fibrosis). It may help better understand fitness and breathing limits, which can guide rehabilitation choices and future care.
Vancouver, British ColumbiaAges 40–80 - NCT03612310Recruiting
Study uses stem cells to model genetic diseases
This study looks at how to create laboratory models of genetic diseases using stem cells made from people’s cells. It may help researchers understand disease causes and how treatments could work, using genetic patients (and some non-patient controls).
Edinburgh, MidlothianAges 1–120 - NCT03549754Recruiting
iCaReMe registry for adults with diabetes, blood pressure, or heart/kidney disease
This is a health “registry,” meaning it collects information about people living with common chronic conditions. It may help researchers better understand real-world health needs and outcomes for people with type 2 diabetes, high blood pressure, heart failure, and/or chronic kidney disease.
Fortaleza, CearáAges 18 years+ - NCT03633708RecruitingPhase 3
Etelcalcetide for children with dialysis-related overactive parathyroid hormone
This trial studies etelcalcetide in children who have chronic kidney disease and too much parathyroid hormone while on hemodialysis. It aims to safely lower the hormone levels and help manage related bone/mineral problems.
Los Angeles, CaliforniaAges birth–18 years - NCT03619850RecruitingPhase 3
Ferumoxytol vs iron sucrose for child kidney anemia
This study compares two IV iron treatments—ferumoxytol and iron sucrose—to treat iron deficiency anemia in children with chronic kidney disease. It aims to see which option works better and is safe, and also to learn how each medicine behaves in the body.
Hollywood, FloridaAges 2–17 - NCT03582709Enrolling by invitation
Study how sitting time affects kids’ thinking and heart health
This study looks at how much children sit each day and how it relates to thinking skills and cardiovascular (heart and blood vessel) health. It may help researchers understand which lifestyle patterns are linked to better or worse health outcomes in children.
Ages 7–12 - NCT03592563Recruiting
Brain health follow-up study for adults
This study follows adults over time to better understand brain health and brain-related conditions. You may join if you already have certain neurological or psychiatric diagnoses, are at higher risk, or simply want to help research on maintaining brain health.
Hong KongAges 18 years+ - NCT03571373Recruiting
Study of new childhood IBD and tracking safety
This trial collects information from children who are newly diagnosed with inflammatory bowel disease (IBD) and follows them to understand safety in real life. It may help doctors improve early diagnosis and treatment planning for kids with IBD.
RotterdamAges birth–19 years - NCT03657732Recruiting
Study of inherited Alzheimer’s genes in families
This study looks at people from families with inherited Alzheimer’s disease, including those who may be cognitively normal. It uses medical checkups and brain/nerve tests to better understand Alzheimer’s risk and symptoms in families with specific gene changes.
Hefei, AnhuiAges 18 years+ - NCT03674255Enrolling by invitation
Tests how accurate heart ultrasound is during stress
This study checks how well a heart ultrasound (echocardiography) works when your heart is at rest and under stress. You may benefit by getting closer attention to how the test is done, especially if it’s being used to look for blocked-heart-blood-flow problems.
Ages 18 years+ - NCT03582488Enrolling by invitationPhase 4
Tracking brain changes in probable Lewy body dementia
This trial follows people with probable Lewy body dementia over several years to see how the brain changes on MRI and on memory/thinking tests. It may help researchers understand disease progression and improve future care for Lewy body dementia.
Jacksonville, FloridaAges 18 years+ - NCT03635541Recruiting
Liver health changes in fatty liver disease
This study tracks how liver scarring (fibrosis) and fat buildup (steatosis) change over time in people with nonalcoholic fatty liver disease (NAFLD). It helps doctors understand risk factors so they can better predict and manage the disease.
Beijing, Beijing MunicipalityAges 18–70
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Common questions
- Are there clinical trials for general population (no specific condition or disease)?
- Yes. Clin2 currently lists 10,548 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.