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
- NCT05337319Recruiting
Registry for people in the hospital with coronary artery disease
This study keeps a careful record of what care people with coronary artery disease receive while they are hospitalized. It may help doctors improve future treatment by showing what is happening in real-world practice.
BeijingAges 18 years+ - NCT05345795Recruiting
Track lung disease changes in systemic sclerosis
This study follows people with systemic sclerosis who also have lung scarring (interstitial lung disease). It aims to map how lung function and lung images change over time, which may help doctors predict and better manage disease progression.
Vandœuvre-lès-Nancy, Grand EstAges 18 years+ - NCT05346068Recruiting
Compare two balloon types for calcium-heavy blocked heart arteries
This trial studies whether one type of balloon works better than another for treating badly calcified (hardened) coronary artery blockages. If you qualify, you would be randomly assigned to get the tested balloon treatment during your heart procedure.
LucerneAges 18 years+ - NCT05347407Recruiting
Gut nerve cell biomarkers study for Parkinson’s risk
This trial studies nerve cell “biomarkers” from the gut to learn whether they can help detect Parkinson’s disease (or related conditions) earlier. You may be asked to undergo a colonoscopy to collect gut tissue for testing.
New York, New YorkAges 45–75 - NCT05347069RecruitingPhase 4
Aspirin study for people with stable heart artery disease
This trial tests whether daily aspirin is safe and effective for people who have stable (chronic) coronary artery disease but cannot have procedures to open blocked arteries. It may help reduce future heart problems, while also checking for side effects and risks from aspirin.
KyotoAges 20 years+ - NCT05348837Recruiting
Two-week sleep tracking for people with Parkinson’s
This study uses a wristband and a headband to track your sleep for two weeks. It’s meant to better understand sleep patterns in Parkinson’s, and may require temporarily changing your evening medication timing.
Aurora, ColoradoAges 18–80 - NCT05353322Recruiting
Exercise breaks to improve heart and sugar health
This study tests whether taking regular breaks from sitting for long periods can improve heart-related and blood-sugar-related health. It’s for adults who mostly sit, but who don’t already have certain long-term conditions or limits.
New York, New YorkAges 18 years+ - NCT05353660Recruiting
Study diet and muscle loss in people with kidney disease
This trial is for adults with chronic kidney disease and low muscle strength (sarcopenia). It aims to find ways to improve outcomes, especially if you have a higher risk of complications.
Guangzhou, GuangdongAges 18–80 - NCT05354622Recruiting
Genetic testing study for inherited leg stiffness
This study looks at genes (DNA) to understand an inherited condition that causes gradually worsening leg stiffness. It may help researchers learn what causes the condition and potentially guide future care.
Boston, MassachusettsAges 1 month–30 years - NCT05356104RecruitingPhase 2
GLP-1 treatment to slow small blood-vessel brain damage
This Phase 2 study tests whether a GLP-1–like medicine can slow worsening “small vessel” disease changes in the brain and related walking and thinking problems. It aims to see if the treatment can prevent progression in people who already show early brain changes on MRI.
Wenzhou, ZhejiangAges 55–80 - NCT05364606Recruiting
Patient-specific ankle spacer for avascular necrosis after surgery
This study follows people who are getting a custom-made spacer implanted in the ankle for avascular necrosis. It’s mainly checking what happens after the surgery in real-world care, and it may help improve how these implants are used and tracked over time.
Santa Rosa, CaliforniaAges 21 years+ - NCT05366153Recruiting
Plan to lower future heart attack risk after past cancer treatment
This trial tests whether a “risk-guided” care plan can help prevent coronary artery disease (the buildup that can lead to heart attacks) in people who had cancer treatment that can affect the heart. You may get closer heart risk monitoring and guidance to reduce risk factors, such as cholesterol—especially if you can safely take statins.
Hobart, TasmaniaAges 40–70 - NCT05367297Recruiting
Registry study of heart plaque in South Asian adults
This study tracks coronary plaque (fatty deposits in heart arteries) in South Asian adults and compares them with people of other backgrounds. You may be asked to have a special heart CT scan and basic measurements to help researchers understand differences in heart disease risk.
Dallas, TexasAges 18 years+ - NCT05368467Recruiting
Registry study for pulmonary hypertension patients
This is a long-term study that enrolls people who have been diagnosed with pulmonary hypertension (high blood pressure in the lung arteries). It collects medical information over time to better understand the condition and what to expect.
Guangzhou, GuangdongAges Any age - NCT05370079Recruiting
Control group for people with specific serious illnesses
This trial includes a “control” group of people with certain diseases to compare outcomes against another group. If you qualify, you may receive the standard approach used in usual care rather than the experimental treatment.
BronAges 18 years+ - NCT05371145RecruitingPhase 1/Phase 2
Carnosine study for people with blocked leg arteries
This Phase 1/2 study tests whether L-carnosine can improve symptoms or circulation in people with peripheral arterial disease (blocked arteries in the legs). You may be able to join if you’re in the right age range and have specific test results showing moderate artery blockage.
Louisville, KentuckyAges 50–80 - NCT05376046Recruiting
Study blood features and clot risk in sickle cell disease
This study looks at differences in red blood cells and how likely they are to form clots in people with sickle cell disease. The goal is to better understand clot risk and what blood markers may predict it.
RouenAges 18 years+ - NCT05380622Recruiting
CT scan to study plaque and blood flow in heart disease
This study uses a special heart CT scan (coronary CT angiography) to look at plaque and how blood flows in people with coronary artery disease. It may help match your scan results with heart measurements and guide future care decisions.
ShanghaiAges 18 years+ - NCT05382663Recruiting
SmartPatch study for adults on dialysis with an arm access
This study looks at how well a wearable patch (“SmartPatch”) can be used safely and correctly in adults who are receiving long-term dialysis through an arm fistula or graft. It may help researchers improve how medical devices are used in people with end-stage kidney disease.
AmmanAges 18 years+ - NCT05383911Recruiting
Sickle cell care plan choices for teens and young adults
This trial tests a way to help teens and young adults with sickle cell disease (SCD) and their caregivers actively take part in treatment decisions. It focuses on improving shared decision-making through interviews and a partner-centered approach.
Wilmington, DelawareAges 15 years+ - NCT05384132Recruiting
Dental gel trial with deep cleaning for gum disease
This study tests whether a new dental gel used along with deep gum cleaning (scaling and root planing) can improve periodontitis. If you qualify, you would receive standard gum treatment plus the study gel, then be followed over time.
Birmingham, AlabamaAges 18–85 - NCT05385315Recruiting
Blood test study to help detect Parkinson’s disease early
This study looks for a new blood marker that could help doctors detect Parkinson’s disease earlier. Depending on your diagnosis and treatment status, your blood may be compared with other people’s to see how well the test works.
GrenobleAges 18 years+ - NCT05386134Recruiting
Adaptive eye imaging for inherited and acquired retinal conditions
This study tests a special high-detail camera that takes clearer pictures of the retina (the light-sensing layer at the back of the eye). It may help researchers better understand different retinal diseases—and your results could support future diagnosis and care.
Toronto, OntarioAges 5–70 - NCT05387031Recruiting
Ustekinumab for painful Crohn’s bowel narrowing
This trial tests ustekinumab, a medicine that calms immune inflammation, to see if it can improve symptoms in people with Crohn’s disease that causes bowel narrowing. It may help if your Crohn’s symptoms come from strictures (narrowed areas) seen on scans or endoscopy.
Beijing, Beijing MunicipalityAges 18–65
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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.