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
- NCT00588562Recruiting
Registry for inherited rare kidney stone disorders
This registry collects information from people with certain inherited rare kidney stone conditions. It helps researchers learn about the conditions and supports future studies that may improve care.
Rochester, MinnesotaAges birth–100 years - NCT00605878Recruiting
Skin microbiome study in healthy people and eczema patients
This study looks at the types of germs on the skin (skin microbiome) in healthy people and people with skin conditions, including atopic dermatitis (eczema). Researchers collect skin samples to understand how skin germs differ and how that may relate to skin health.
Bethesda, MarylandAges 2–100 - NCT00646022Recruiting
Family study of small intestine carcinoid tumors
This is a research study that follows families with small intestine carcinoid tumors (and related hormone-related tumors) to learn how these conditions progress over time. It may help doctors better predict risk and health needs for people in similar families.
Bethesda, MarylandAges 18–100 - NCT01772602Recruiting
Join a national ALS patient registry in the U.S.
This study is a national registry that collects information from people with amyotrophic lateral sclerosis (ALS) to better understand the disease. Joining may help researchers learn about patterns of symptoms and care over time.
Atlanta, GeorgiaAges 18 years+ - NCT00874783Recruiting
Testing nerve-cell growth from donated body cells
This trial uses donated body cells or small hair samples from people with neurological diseases (and healthy donors) to try to grow “nerve-like” cells for research. It may help scientists learn how to better study and treat different neurological conditions.
Jerusalem, IsraelAges 18 years+ - NCT01166854Recruiting
Study of muscle and bone conditions in families
This study looks at how certain muscle and bone diseases show up in people and in their family members. It may help researchers better describe these conditions and improve future diagnosis and care.
Irvine, CaliforniaAges 18 years+ - NCT01730092Recruiting
Study of blood and imaging biomarkers in pulmonary artery hypertension
This study tracks natural changes in “biomarkers” (measurable signals in blood) and imaging findings in people with pulmonary arterial hypertension (PAH) or suspected PAH. It also includes healthy people for comparison, helping researchers understand what these signals mean over time.
Bethesda, MarylandAges 18–100 - NCT01016613Recruiting
Kidney health study that helps build a tissue and data bank
This study collects health information and biological samples to better understand kidney disease and support future kidney research. It may help your care indirectly by improving how kidney conditions are recognized and studied.
Ann Arbor, MichiganAges Any age - NCT01873235Recruiting
Study for adults with confirmed polycystic kidney disease
This study enrolls adults with autosomal dominant polycystic kidney disease (ADPKD) to better understand the disease and its related changes in the body. It may help researchers find improved ways to track the condition and support future treatments.
Baltimore, MarylandAges 18 years+ - NCT01581294Recruiting
Norwegian arthritis drug registry for new biologic or kinase treatment
This study is a real-world registry that follows adults with inflammatory arthritis when they start a new targeted medicine. It helps researchers understand how these drugs work in everyday care.
Drammen, BuskerudAges 18 years+ - NCT00985049Recruiting
Study genes from blood flow fluid during aortic valve surgery
This study looks at gene activity in the heart to better understand what is happening during aortic valve surgery. It may help researchers find ways to monitor or improve heart care in the future.
Boston, MassachusettsAges 20 years+ - NCT01851642Recruiting
Study how lung disease affects white blood cells
This study looks at how lung disease changes a type of blood cell called white blood cells. It may help researchers understand what’s happening in the lungs and how to better monitor or treat lung problems.
Gainesville, FloridaAges 18 years+ - NCT01306019RecruitingPhase 1/Phase 2
Gene therapy for children with severe immune deficiency (XSCID)
This trial tests a one-time gene therapy approach to help children with X-linked SCID (a serious inherited immune disorder) make better immune cells. It’s for people who don’t have a fully matched sibling donor and need long-term follow-up after treatment.
Bethesda, MarylandAges 2–50 - NCT01145196Recruiting
Study drug eye damage and genes in Plaquenil users
This study looks at how Plaquenil (hydroxychloroquine) can harm the retina (the eye’s light-sensing layer) and whether genetics affect who gets affected. You may help by sharing medical details and providing an eye-related blood sample so researchers can compare gene patterns to eye findings.
Bethesda, MarylandAges 18–120 - NCT01166009Recruiting
CIBMTR research database for transplant and bone marrow injury patients
This study collects health and treatment information in a large research database. It may help researchers better understand outcomes after blood stem cell transplants or bone marrow injury from treatment like radiation.
Minneapolis, MinnesotaAges Any age - NCT01193088Recruiting
Study genetics to find who modifies Charcot-Marie-Tooth (CMT)
This study looks at DNA changes in families with Charcot-Marie-Tooth (CMT), especially a known gene duplication called PMP22. It aims to understand what other genetic factors may change how CMT shows up, which could help future diagnosis and care.
Los Angeles, CaliforniaAges Any age - NCT01218776Recruiting
Survey study for people with acute heart symptoms
This study is an international survey about acute coronary syndromes, which are sudden signs of heart-related problems. Your answers can help researchers better understand symptoms and care needs after these events.
Bologna, Emilia-RomagnaAges 18 years+ - NCT01499394Recruiting
Biorepository study for adults who can consent
This study collects and stores samples (such as tissue or other biological materials) for future research. It mainly seeks adults who can agree to participate after understanding what it involves.
Mobile, AlabamaAges 18 years+ - NCT01354002Recruiting
Tissue banking for research at St. Jude
This study collects, stores, and shares human tissue samples for future research at St. Jude. You or your family may be eligible if your institution has approved this process through their ethics board (IRB) and you (or a study leader) gave consent for tissue banking.
Huntsville, AlabamaAges Any age - NCT01280994RecruitingPhase 2
Lung MRI test using special gas to measure breathing
This Phase 2 study uses a special type of MRI with inhaled gas to measure how well your lungs work. It may help researchers better understand lung function in healthy people and in people with lung disease.
Durham, North CarolinaAges 18 years+ - NCT01668186Recruiting
Study of how peroxisome disorders change over time
This study follows people with peroxisome biogenesis disorders (PBD) or closely related enzyme/protein defects to learn how symptoms and health changes over time. It may help researchers better understand the condition and plan future treatments.
Montreal, QuebecAges Any age - NCT01873131Recruiting
Laser or timolol gel for fast-growing birthmark in infants
This study compares three approaches—pulsed-dye laser, timolol (a medicated skin solution), or watch-and-wait—to see which works best to slow the growth of a hemangioma birthmark in young babies. It may help find a treatment that shrinks or controls the birthmark as early as possible.
Boston, MassachusettsAges Up to 3 months - NCT02022943Recruiting
Join an Alzheimer's prevention registry website
This trial builds a registry so researchers can contact you about future Alzheimer’s studies. It mainly requires agreeing to the registry’s website terms and conditions.
Phoenix, ArizonaAges 18–110 - 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
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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.