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
- NCT04526353RecruitingPhase 2
Oxybutynin for young boys with posterior urethral valves
This trial tests whether early use of oxybutynin can improve bladder and urine behavior in very young boys with posterior urethral valves. It is mainly for babies whose bladder tests show problems even after valve surgery.
BordeauxAges 3 months–6 months - NCT04567771Recruiting
Proton vs IMRT radiation after surgery for uterine or cervical cancer
This study compares two types of radiation therapy (proton and IMRT) given after surgery for endometrial or cervical cancer. It aims to see which treatment is better at reducing side effects while still being effective.
Scottsdale, ArizonaAges 18 years+ - NCT04514445Recruiting
Study of genes in people with bicuspid aortic valve
This study looks for genetic (inherited) differences that may be linked to bicuspid aortic valve (BAV). It includes people with BAV and close family members to help understand why BAV happens and whether genes play a role.
KetteringAges 10–99 - NCT04521699Recruiting
CalmiGo stress device to improve heart blood vessel health
This study looks at whether a stress-management device (CalmiGo) can improve blood vessel function and heart disease risk in people recovering from recent heart procedures. You would use the device for 12 weeks and complete questionnaires, blood tests, and a heart-vessel test at the start and end.
Rochester, MinnesotaAges 18 years+ - NCT04505618Recruiting
Eye scan study using special imaging for blood-vessel disease
This study uses a detailed eye scan (optical coherence tomography angiography) to look at how blood vessels in the retina are affected. It may help researchers better understand retinal vascular diseases, though some people will be excluded for safety or image-quality reasons.
Baltimore, MarylandAges 18–99 - NCT04522765Recruiting
Tracking daily blood pressure patterns in people at high heart risk
This study measures how your blood pressure changes across the day in people at higher risk of heart and blood vessel disease. It may help researchers understand why blood pressure patterns vary, which could guide better prevention or care.
EdinburghAges 18–90 - NCT04543461Recruiting
Lung health study for young adults in the U.S.
This study follows young adults to learn about lung health and risk factors. It may help researchers better understand how breathing symptoms and exposures affect future lung outcomes.
Birmingham, AlabamaAges 25–35 - NCT04523857RecruitingPhase 2
Abemaciclib and hydroxychloroquine after breast cancer relapse risk
This Phase 2 trial tests whether abemaciclib plus hydroxychloroquine can kill tiny “leftover” cancer cells in the bone marrow after standard breast cancer treatment. It may help lower the chance of cancer coming back by targeting minimal residual disease.
Philadelphia, PennsylvaniaAges 18 years+ - NCT04504526RecruitingEarly Phase 1
New imaging for diagnosing lymphoma
This study tests a new imaging method called CXCR4 PET/CT that may help doctors better see and understand lymphomas (a type of blood cancer). It is for people who are newly diagnosed or suspected of having lymphoma and have already had a standard PET/CT.
Fuzhou, FujianAges 18–80 - NCT04442646Recruiting
Asthma education program for better self-management
This study looks at an “Asthma School,” an education and support program, to help adults manage their asthma day to day. It may help you learn practical ways to control symptoms and know what to do when asthma flares.
Tradate, LombardyAges 18–85 - NCT04416581RecruitingPhase 4
Compare two stomach-protecting medicines to prevent bleeding
This trial compares a potassium-competitive acid blocker to a proton pump inhibitor to help prevent stomach or intestinal bleeding in people at high risk who take blood-thinning medicines. It may help reduce dangerous GI bleeding while you stay on heart/stroke medicines.
AnyangAges 19 years+ - NCT04429750Recruiting
Cord resuscitation approach for babies with diaphragmatic hernia
This study looks at a specific way to support a newborn’s breathing right after birth when they have congenital diaphragmatic hernia (a birth condition affecting the diaphragm). If you qualify, the team will compare their resuscitation approach to standard care to see if it helps babies in the delivery room.
AmiensAges 8 months–9 months - NCT04487314Recruiting
Study of chronic vein disease over time
This study follows people (and certain close family members) to document how chronic vein problems develop and change over time. You would get yearly checkups and ultrasound scans to track the natural course of the condition.
Saint Petersburg, Sankt-PeterburgAges 10 years+ - NCT04432623Enrolling by invitationPhase 1/Phase 2
Test drug for adults with beta thalassemia intermedia
This trial studies an investigational medicine in adults with beta thalassemia intermedia (including non-transfusion dependent thalassemia). The goal is to see how well the treatment works and how safe it is for people whose hemoglobin runs in a certain range.
Oakland, CaliforniaAges 18 years+ - NCT04433455Recruiting
Brain and thinking health in hemodialysis patients
This study looks at how blood vessel problems in the brain and thinking (cognition) are related in people who are on long-term hemodialysis for kidney failure. By joining, you help doctors learn how to better protect brain health in dialysis patients.
Shanghai, Shanghai MunicipalityAges 50–85 - NCT04414046RecruitingPhase 2
Stem cell transplant using T-cell cleanup for immune and metabolism disorders
This Phase 2 study tests a specialized stem cell transplant that removes certain “T-cells” (a type of immune cell) to treat children with serious immune system or inherited metabolic problems. The goal is to improve or stabilize disease by resetting the immune system and supporting the body’s function.
St. Petersburg, FloridaAges Up to 21 years - NCT04388332Recruiting
Neck surgery compares two bone graft materials
This study compares two materials used during neck surgery for degenerative disc disease: donor bone (structural allograft) versus a titanium cage (Tritanium C). It aims to see which option works better for healing the fused neck bones and improving symptoms.
Pittsburgh, PennsylvaniaAges 18–80 - NCT04388943Recruiting
BRICCS study: health data for cardiovascular research
This trial helps researchers study heart (cardiovascular) conditions using information collected about your care. It may help improve how doctors understand and treat cardiovascular diseases over time.
LeicesterAges 18–90 - NCT04443530Recruiting
Testing Ultimaster stents in everyday patient care
This trial looks at how safe and effective two specific stents are when doctors use them as part of routine care. You may be a candidate if you’re an adult receiving one of these Ultimaster stents and can follow the study check-in schedule.
ChuncheonAges 19 years+ - NCT04455906Recruiting
Study why some people with eczema get more severe
This study looks at why disease tends to be more severe in some people with atopic dermatitis (eczema), especially those with a specific genetic change in the IL-4 receptor (IL-4Ra). The results may help explain what drives flare-ups and could guide better treatments in the future.
Boston, MassachusettsAges 6–65 - NCT04442100Recruiting
Testing a new easy-change heart valve replacement system
This study tests a biological (tissue) heart valve replacement system designed to be easier to change later. It may help people who need valve surgery because their valve is narrowed or damaged.
Tomsk, Tomsk OblastAges 60 years+ - NCT04477785Recruiting
Study to track Parkinson’s signs using imaging, spinal fluid, and genes
This study is building a large, detailed group of people—some with Parkinson’s and some at higher risk—to understand early changes over time. It uses brain imaging (DaTscan SPECT), sometimes spinal fluid tests (lumbar puncture), and genetic information to help researchers better measure disease and develop future treatments.
Birmingham, AlabamaAges 30 years+ - NCT04472338Recruiting
Prostate cancer screening for people with higher genetic risk
This study looks at prostate cancer screening for people who may be at higher risk because of a specific inherited (genetic) change. It may help your care team find the best screening approach to catch aggressive prostate cancer earlier.
Duarte, CaliforniaAges 40 years+ - NCT04444362Enrolling by invitation
Probacine to protect organs after cardiovascular surgery
This study tests whether a medicine called Probacine can help protect your gut and organs after cardiovascular surgery. If you qualify, you may be asked to take part and follow the study plan to see if complications are reduced.
Beijing, Beijing MunicipalityAges 18–90
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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.