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
- NCT07700342Recruiting
Could an evening gel improve sleep for nighttime reflux?
This trial tests a topical therapy you apply at night to see if it can improve sleep for people with non-erosive GERD who still have nighttime symptoms even while taking a morning acid reducer.
Warsaw, Masovian VoivodeshipAges 18 years+ - NCT07703683Recruiting
Muscle health in metabolic and hormone diseases
This trial looks at how muscle health is affected by metabolic or hormone disorders, aiming to find better markers for muscle loss called sarcopenia.
Woluwe-Saint-Pierre - Sint-Pieters-WoluweAges 18 years+ - NCT04024774Recruiting
Genetic testing study for rare diseases with an unclear cause
This study looks for a genetic (DNA) explanation for rare diseases when usual genetic testing hasn’t found an answer. It may help by re-analyzing prior results and comparing them with parents’ DNA to better pinpoint the cause.
DijonAges Any age - NCT04039763Recruiting
Glucose monitoring for young adults at risk of DKA
This study tests a real-time glucose monitor (RT-CGM) to help young adults with insulin-treated diabetes recognize dangerously high or fast-changing blood sugars. It may help lower the risk of diabetic ketoacidosis (DKA), a serious complication that can lead to urgent care or hospital stays.
LondonAges 18–25 - NCT04061967Recruiting
Reminder and self-sampling to help cervical screening
This study tests whether reminders and providing an at-home sample kit can help more women complete cervical cancer screening. It may help people who have not had follow-up after a prior abnormal result or who haven’t been screened in many years.
Luleå, Norrbotten CountyAges 33–75 - NCT04079179RecruitingPhase 2
Cobimetinib for difficult Langerhans cell and similar disorders
This Phase 2 trial studies cobimetinib, a medicine that targets a specific growth-and-signal pathway, to treat stubborn (refractory or worsening) Langerhans cell histiocytosis and related disorders. It may help shrink active disease or stop disease from progressing.
Phoenix, ArizonaAges Any age - NCT04095351Recruiting
Study of connective tissue disease affecting the lungs
This study looks at people aged 18 and older who have a connective tissue disease and lung involvement. It aims to better understand how these lung problems progress and may help doctors choose better care.
InnsbruckAges 18–80 - NCT04101968Recruiting
Study of GBA changes in Parkinson’s using multiple tests
This study looks at people with Parkinson’s who carry a specific genetic change in the GBA gene. It uses several tests (including brain scans) to understand the disease better and may help guide future treatments.
Portland, OregonAges 18–80 - NCT04185844Recruiting
Chronic kidney health study for Native American adults
This study follows Native American adults with kidney function changes (either moderately reduced kidney filtration or early urine protein). It aims to better understand kidney disease over time and what factors predict progress, which may help improve care for people like you.
Phoenix, ArizonaAges 21–80 - NCT04187820Recruiting
Acupuncture for mild to moderate Crohn’s flare
This trial tests whether acupuncture can help calm an active Crohn’s disease flare that is mild to moderate. It may be an option if standard Crohn’s medicines like steroids, immunosuppressors, and anti-TNF drugs are not working for you or you can’t tolerate them.
Shanghai, Shanghai MunicipalityAges 16–70 - NCT04201210RecruitingPhase 2
Stem cell transplant study for young people with severe sickle cell
This Phase 2 study tests a type of stem cell transplant that uses donor immune cells that have been specially “tweaked” to help treat sickle cell disease. It may help prevent serious sickle cell complications, but it requires careful matching and screening of organs and pregnancy status.
ViennaAges 2–35 - NCT04230356RecruitingPhase 2
Viral immune T-cells for viral infections after stem cell transplant
This Phase 2 study tests donor-made immune T-cells that specifically target viruses to treat or prevent viral infections after a stem cell transplant. It may help your body control dangerous viruses like adenovirus, CMV, EBV, and BK virus, while checking safety with different timing of the treatment.
Cincinnati, OhioAges Any age - NCT04263038RecruitingPhase 4
Watchful waiting versus blood thinners for small lung clots
This trial compares close monitoring (“watch and wait”) versus taking the blood thinner rivaroxaban in people with a small type of lung blood clot. It aims to find out whether low-risk patients can safely avoid or reduce anticoagulation while still staying healthy.
Woluwe-Saint-Lambert, Brussels CapitalAges 18 years+ - NCT04331639Recruiting
High-dose vitamin D for kids with IBD on biologic therapy
This trial studies whether giving a higher dose of vitamin D3 helps children and teens with inflammatory bowel disease (Crohn’s or ulcerative colitis) who have low vitamin D levels. Participants are already on biologic medicines and will be treated while monitoring blood (and safety) related to vitamin D.
Boston, MassachusettsAges 5–25 - NCT04347200Recruiting
Long-term blood-thinner therapy registry for heart disease
This study follows people with known coronary artery disease to understand how long-term “blood thinner” treatments are used and how they affect health over time. You may be asked to share medical information and come in for follow-up to help researchers compare outcomes.
MoscowAges 18 years+ - NCT04389437Recruiting
Eye imaging study for people with memory problems
This study uses detailed eye scans to look for changes that might relate to memory problems. You may be able to join if you are being seen for memory concerns and meet the health and eye-scan requirements.
ParisAges 18 years+ - NCT04396873RecruitingPhase 1
PET brain scan study of inflammation markers in neurodegeneration
This Phase 1 study tests a PET scan to measure inflammation-related changes in the brain using a medication called ketoprofen. It may help researchers understand which people with certain brain diseases could benefit from treatments aimed at inflammation.
Bethesda, MarylandAges 18–99 - NCT04464655Recruiting
10-minute heart MRI protocol for people with heart conditions
This study uses a short, 10-minute heart MRI to check how well it works for people who need a clinically indicated heart scan. It may help streamline heart MRI testing, making exams faster while still providing useful heart information.
Montreal, QuebecAges 18 years+ - NCT04475952Recruiting
Diagnosing upper digestive problems earlier during routine care
This study aims to learn how to detect problems in the upper digestive tract earlier. People may be asked to help with diagnosis while they are already undergoing routine tests or treatment, which could improve future care.
LondonAges 18–90 - NCT04493632Recruiting
Registry for an OncoSil implant in locally advanced pancreatic cancer
This observational registry tracks patients with locally advanced, unresectable pancreatic cancer who receive an OncoSil implant and then start standard chemotherapy. It may help doctors understand how the implant is used in real life and how patients do over time.
Las Palmas de Gran CanariaAges 18–90 - NCT04511234Recruiting
Sirolimus-coated balloon vs standard balloon for leg artery narrowing
This trial compares two balloon treatments used during a procedure to open blocked or narrowed arteries in the thigh and behind the knee. It tests whether the sirolimus-coated balloon works better at keeping the artery open than a standard balloon.
SingaporeAges 21 years+ - NCT04511247Recruiting
Drug-coated balloon for artery disease below the knee
This trial tests a drug-coated balloon to open narrowed or blocked arteries in the lower leg (below the knee) and help them stay open. It’s meant for people with significant symptoms, to reduce re-narrowing after treatment.
SingaporeAges 21 years+ - NCT04536103Recruiting
Accelerated MRI scans after ACL knee injury surgery
This trial tests a faster MRI scan method to measure healing in the knee after an ACL (anterior cruciate ligament) tear and reconstruction. It may help researchers compare scan quality while participants go through standard rehab.
Cleveland, OhioAges 18–50 - NCT04556019Recruiting
Study of past and future liver and bile-pancreas surgeries
This is a research study using information from people who had certain liver, bile duct, and pancreas surgeries in the hospital’s surgical team. It aims to review surgical results and may help improve how these operations are done.
Pamplona, NavarreAges 15–90
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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.