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 10,802 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03850015Recruiting
Ultrasound test to assess heart disease using faster images
This trial studies whether a newer, faster ultrasound imaging method can better assess areas of the heart that may not get enough blood during stress. You may be eligible if you have known coronary artery disease or are considered low risk, and if you can safely undergo the stress ultrasound test.
Harrow, MiddxAges 18 years+ - NCT03851523Recruiting
Tracking memory changes in people with early Alzheimer’s symptoms
This study follows people over time to better understand how memory and thinking complaints progress in early Alzheimer’s disease (from “subjective cognitive decline” to mild cognitive problems). It may help researchers understand who is likely to decline and how symptoms change, which could support future treatments.
Barcelona, CataloniaAges 45 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 - NCT03875625Recruiting
Tracking body fat and liver fat after weight-loss treatment
This study looks at how body fat and liver fat change after bariatric (weight-loss) surgery or a lifestyle program. You may join if you have overweight or obesity and can safely have MRI scans, so researchers can compare results between treatment approaches.
Hong Kong, ShatinAges 18–65 - NCT03890224Recruiting
Testing breathing support needs in COPD with high CO2
This trial studies how different breathing support strategies affect people with COPD who have high carbon dioxide (CO2) in their blood. It may help care teams choose safer respiratory support after a breathing machine is stopped.
Paris, Île-de-France RegionAges 18 years+ - NCT03891160Recruiting
Using heart scans to plan a support pump in children
This trial is testing a way to help doctors assess babies and children with congenital heart disease and heart failure before placing a temporary heart support pump. It may help improve planning by using heart scans to decide who needs support and how to prepare.
Gainesville, FloridaAges Any age - NCT03915262Recruiting
Active Crohn’s patients with possible pancreas enzyme problems
This study looks at how often people with active Crohn’s disease also have trouble digesting food because the pancreas may not release enough enzymes (exocrine pancreatic insufficiency). It may help doctors better recognize this hidden problem in people whose Crohn’s is currently active.
Pierre-BéniteAges 18 years+ - NCT03917303RecruitingPhase 4
Check-in app for people with newly diagnosed Crohn’s disease
This Phase 4 study tests whether using the myIBDcoach smartphone app helps people with Crohn’s disease manage their care. It’s for people who are newly diagnosed or having a flare and have not used biologic medicines before.
MaastrichtAges 18–70 - NCT03929887Recruiting
Kidney biopsy patients join a kidney tissue research bank
This study builds a kidney tissue “library” to help researchers analyze kidney disease in newer ways. It may help by improving how glomerular (kidney filter) diseases are understood over time, using samples from people who already had a biopsy.
ChuncheonAges Any age - NCT03931707Recruiting
Genetic study of newborns in China
This study collects genetic information from very young newborns to better understand early-life health. Your child’s information may help researchers learn about genetics and future research.
Shanghai, Shanghai MunicipalityAges Up to 4 weeks - NCT03937817Recruiting
Donate samples to study globin gene variants
This study collects common body samples to learn how different globin gene variants work and how they relate to health. Your samples may also be used later for new research, including genetic testing.
Bethesda, MarylandAges 18–70 - NCT03953768Recruiting
Testing a new vagus nerve stimulator for gut and immune health
This study looks at what happens to your immune system and stomach/gut function after getting a vagus nerve stimulator (VNS) for the first time for epilepsy. It may help doctors understand whether the device benefits more than seizures.
Louisville, KentuckyAges birth–60 years - NCT03949972Recruiting
FSGS and MCD patient registry for kidney disease
This study is a registry that collects medical information from people with nephrotic syndrome caused by FSGS or minimal change disease (MCD). It may help doctors better understand these conditions and improve future care, especially by tracking patients over time.
Cologne, North Rhine-WestphaliaAges Any age - NCT03972956Recruiting
Collecting samples during cancer or surgery visits
This trial looks at collecting (taking) medical samples from people who need surgery for colorectal cancer, stomach (gastric) cancer, or a non-cancer condition. It may help researchers better understand these diseases and improve how treatment is planned.
Wuhan, HubeiAges 18–80 - NCT03983473Recruiting
Testing stool samples to find gut bacteria markers in inflammatory arthritis
This study looks at stool (poop) samples to see whether gut bacteria patterns can help identify certain inflammatory arthritis conditions in people who have Crohn’s disease or axial spondyloarthritis. It’s mainly about matching stool “biomarkers” to diagnoses, which may help doctors recognize these conditions more accurately in the future.
Nancy, LorraineAges 18 years+ - NCT03991169RecruitingPhase 4
Oral iron for children with chronic kidney disease
This trial studies whether taking iron by mouth can improve iron levels and anemia (low red blood cell counts) in children with chronic kidney disease. It may help reduce fatigue and support normal blood-making, by comparing different approaches for children who meet specific iron test results.
New York, New YorkAges 1–21 - 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 - NCT07702149Recruiting
Diet for Behcet's disease patients with ringing in the ears
This trial tests whether a special diet can help ringing in the ears (tinnitus) in people with Behcet's disease who also have obesity. The goal is to see if dietary changes reduce tinnitus symptoms.
Giza, DokkiAges 40–55 - NCT07702123Recruiting
Physical activity study for women with Behcet's and metabolic syndrome
This study tests if a physical activity program helps women who have both Behcet's disease and metabolic syndrome. It aims to improve their health and well-being.
Giza, DokkiAges 40–50 - NCT07082738RecruitingPhase 2
Study of AZD6793 for people with moderate to very severe COPD
This trial tests a new drug called AZD6793 for people with moderate to very severe COPD. It aims to see if the drug can help improve breathing and reduce flare-ups.
Birmingham, AlabamaAges 40 years+ - NCT07622368RecruitingPhase 1
Testing IBI3031 for Active Thyroid Eye Disease
This early-stage trial tests a new drug called IBI3031 to treat active thyroid eye disease (TED), a condition where the immune system attacks muscles and tissue around the eyes, causing swelling, bulging, and sometimes double vision. The study aims to see if this drug can reduce inflammation and improve symptoms.
Shenyang, LiaoningAges 18–75 - NCT04010188Recruiting
Study comparing people with Charcot-Marie-Tooth and healthy controls
This study follows people who have Charcot-Marie-Tooth disease (CMT) and compares them with people without it. It aims to better understand CMT, using both clinical symptoms and genetic test results, which may help future care.
FuzhouAges Any age - 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+ - NCT04012658Recruiting
Study of people with Wilson disease genes and family members
This study follows people who have the genetic cause of Wilson disease, including people who feel well and family members. Researchers want to better understand Wilson disease and what to watch for over time.
FuzhouAges Any age
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Common questions
- Are there clinical trials for general population (no specific condition or disease)?
- Yes. Clin2 currently lists 10,802 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.