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 10,813 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT00026884Recruiting
Blood and tissue sample collection for cancer research
This study collects blood and tissue samples from people with cancer or suspected cancer, or from their blood relatives. Researchers use these samples to better understand cancer and develop new treatments.
Bethesda, MarylandAges 2 years+ - NCT01696734RecruitingPhase 3
Domperidone for difficult stomach and reflux problems
This trial studies whether domperidone can help people whose stomach or reflux symptoms did not improve with usual treatments. It focuses on symptoms like slow stomach emptying, hard-to-control acid reflux, or severe indigestion.
Houston, TexasAges 16 years+ - NCT01927783Recruiting
Community weight loss program for people in Washington area
This study tests a community-based behavioral weight loss program. It may help participants learn practical habits for healthier weight by working with people in local faith communities.
Bethesda, MarylandAges 19–85 - NCT01581580Recruiting
Deep brain stimulation surgery for movement disorders
This study looks at whether deep brain stimulation surgery can help people with certain movement problems, chosen by a specialized team. You may be considered if medicines (or other treatments) aren’t controlling your symptoms well enough or if the condition causes major disability.
Bethesda, MarylandAges 18–99 - NCT00867269Recruiting
Study of causes and progression of low CD4 blood cells
This study looks for what causes and how idiopathic low CD4 cells happen over time, using blood and tissue samples. It may help doctors learn why this occurs and how to better track people with it.
Bethesda, MarylandAges 18 years+ - NCT00090662Recruiting
Healthy Volunteer Sample Collection for Medical Research
This research study collects blood, urine, and other samples from healthy volunteers to support medical research. Depending on the type of sample, you may donate blood, provide skin samples, or participate in other non-invasive procedures. Your samples help scientists understand health and develop new treatments.
Bethesda, MarylandAges 18–85 - NCT00575133Recruiting
Study of people with fatty liver disease
This study follows people who have been confirmed to have fatty liver disease seen on a liver sample. It aims to understand the condition over time and how different causes and health factors may affect it.
Zurich, Canton of ZurichAges 18 years+ - NCT01212003Recruiting
Study of how tuberculosis develops over time
This study follows people with suspected or confirmed tuberculosis (TB), whether they have inactive “latent” TB or active TB. It helps researchers better understand TB’s natural course and may improve future testing and care by allowing collection and storage of samples.
Bethesda, MarylandAges 2–100 - NCT00943514Recruiting
Study of bronchiectasis and why infections keep coming back
This study follows children (age 5+) and adults with bronchiectasis or ongoing/repeated lung infections to learn what makes infections more likely. It mainly looks at non–cystic fibrosis causes, but may include some related conditions to compare differences.
Bethesda, MarylandAges 5–100 - NCT00106015Recruiting
Diamond Blackfan Anemia Registry Study
This study collects information from patients with Diamond Blackfan Anemia (DBA), a rare blood disorder that affects red blood cell production. By joining this registry, you help doctors better understand DBA and improve treatments for patients like you.
New Hyde Park, New YorkAges Any age - NCT00830557Recruiting
Share information and donate tissue samples for pancreatic illnesses
This study collects health information and tissue samples from people with pancreatic cancer or other pancreatic conditions. Your participation may help researchers better understand these diseases and improve future care.
Phoenix, ArizonaAges 18 years+ - NCT01366404Recruiting
FFR-guided heart procedure study for coronary artery narrowing
This study follows people who have narrowed heart arteries and have a pressure test (FFR) to guide treatment. It may help doctors understand the course of disease when using FFR and choosing a minimally invasive approach.
AnyangAges 35 years+ - NCT00341237Recruiting
Study linking genes and environment to health risks
This study looks at how your genes and your environment may affect your health. It may help researchers better understand who is most at risk so future prevention and care can be more personalized.
Chapel Hill, North CarolinaAges 18–120 - NCT02039752Recruiting
Registry for adults with multi-vessel heart disease
This study is a registry that collects information about adults with heart disease affecting more than one vessel. It may help doctors better understand how these conditions are managed over time at Asan Medical Center.
SeoulAges 19 years+ - NCT02019706RecruitingPhase 2
PET/CT scans to find the cause of ectopic Cushing syndrome
This trial tests several special imaging scans to help doctors locate the source of hormone overproduction in ectopic Cushing syndrome. It may help confirm where the problem is so treatment can be better targeted.
Bethesda, MarylandAges 18–80 - NCT00381121Recruiting
Kidney and pancreas biopsy participants needed for a research bank
This study collects and stores biological samples from people (including children) who are already getting a kidney and/or pancreas biopsy at the University of Michigan. It helps researchers better understand kidney and pancreas diseases, and participation depends on giving informed consent.
Ann Arbor, MichiganAges Any age - NCT00471250Recruiting
Donate lung samples to help future lung and airway research
This study collects lung fluid and tissue (and sometimes nasal or breath samples) to store for future research. It aims to understand lung and airway biology, and you may help by donating samples during a short procedure.
Bethesda, MarylandAges 5–100 - NCT00762333Recruiting
Blood tests after a heart attack to study heart strain markers
This study looks at blood test “markers” soon after an acute heart attack, to better understand heart damage and whether heart failure is present. It may help doctors improve how they monitor recovery and risk in people after a heart attack.
Farmington, ConnecticutAges 18 years+ - NCT01829204Recruiting
Health study registry for vaginal conditions
This study is building a database (a secure record) to learn about vaginal/vulva conditions in women. You may be invited if you’re coming in for a routine women’s health visit or you’re being seen for a vaginal concern, and you can share information safely.
Midland, TexasAges 21–75 - NCT01886950Recruiting
Bone and blood-vessel changes around kidney transplant
This study looks at how bone structure and blood-vessel calcification change before and after a kidney transplant. It may help doctors better understand what to monitor for long-term health after transplantation.
Leuven, Vlaams-BrabantAges 18 years+ - NCT01252485Recruiting
Biology and outcome registry for acute leukemia patients
This is a research registry that collects information and lab/blood sample data to better understand what acute leukemia looks like biologically and how patients do over time. It may help future treatment decisions, but it does not describe testing a new drug.
GrazAges 18 years+ - NCT01788592Recruiting
Study of drug-coated stents in routine heart procedure care
This study follows people who need a heart procedure to open narrowed coronary arteries using a drug-coated stent. It aims to see how well these stents work and how people do in everyday clinical practice.
SeoulAges 18 years+ - NCT01186133Recruiting
Testing drug-coated stents in routine heart artery treatment
This trial looks at how different types of drug-coated stents work in everyday care for people with blocked heart arteries. It may help doctors choose the best stent type to keep the artery open after treatment.
Multiple LocationsAges 19 years+ - NCT01520844Recruiting
HIV cohort study comparing people on and off treatment
This study follows adults with HIV over time to compare different groups based on how stable their virus levels are. It may help researchers understand who can safely interrupt treatment and who should stay on it, and how immune health changes.
Le Kremlin-BicêtreAges 18–85
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Common questions
- Are there clinical trials for general population (no specific condition or disease)?
- Yes. Clin2 currently lists 10,813 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.