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 10,808 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03209414Recruiting
Study of frailty in heart patients receiving heart care
This trial looks at “frailty,” meaning reduced strength and resilience, in older adults with coronary artery disease who are getting heart care. It may help doctors better understand which patients are more at risk and how care decisions could be improved.
Zabrze, Upper SilesiaAges 65 years+ - NCT03209674Recruiting
Registry tracking outcomes after heart and chest surgery
This is a registry that collects information from people who have heart or chest (thoracic) surgery. It may help doctors understand what improves outcomes after surgery, but it usually does not test a new drug.
Neuilly-sur-Seine, Île-de-France RegionAges Any age - NCT03217110Recruiting
Brain stimulation study for thinking and control
This trial tests whether stimulating the cerebellum (a part of the brain involved in coordination and learning) can improve “cognitive control,” or the ability to focus and manage thoughts. You may be able to join if you have a diagnosis they are specifically enrolling for and you can safely complete the stimulation and study procedures.
Iowa City, IowaAges 18–90 - NCT03233087Recruiting
Study to predict outcomes in aortic dissection
This study collects medical information and blood-test timing data to learn how to diagnose aortic dissection sooner and predict outcomes. It may help doctors better plan care for people with suspected or confirmed aortic dissection.
Beijing, Beijing MunicipalityAges 18–80 - NCT03256240Recruiting
Two surgical options for Crohn’s bowel resection
This trial compares two ways of reconnecting the bowel after surgery in people with Crohn’s disease that affects the small intestine and/or colon. It aims to see which reconnection method works better after the initial surgery, even if you’re on Crohn’s medicines before the operation.
Boston, MassachusettsAges 18–90 - NCT03266627RecruitingPhase 2
Adenovirus T-cell therapy for hard-to-treat virus after transplants
This trial tests a special immune-cell treatment made to fight adenovirus in people whose adenovirus infection keeps coming back or won’t improve after transplant. It may help control infection when standard antiviral medicines are not working or can’t be tolerated.
Los Angeles, CaliforniaAges 1 month–79 years - NCT03266653RecruitingPhase 2
T-cell therapy for stubborn Epstein-Barr virus after transplants
This trial tests an immune therapy made from EBV-targeted T-cells to treat EBV infections that do not improve with standard anti-viral medicines. It may help by strengthening the body’s ability to fight EBV after certain transplants or immune problems.
Los Angeles, CaliforniaAges 1 month–79 years - NCT03269630Recruiting
Pulmonary hypertension biobank for heart-lung blood samples
This study collects and stores health information and possibly blood samples from people being evaluated for pulmonary hypertension or related autoimmune conditions. It helps researchers learn more about these illnesses and may support future studies.
New Orleans, LouisianaAges 18 years+ - NCT03273049Recruiting
Study of disease processes in children getting liver transplants
This study maps how biliary atresia (a childhood blockage/problem with bile flow from the liver) progresses and changes in the body around the time of a liver transplant. It may help doctors better understand the disease and improve future care.
Pittsburgh, PennsylvaniaAges Any age - NCT03277365Recruiting
Share your 23andMe data with a digital genetics study
This study tests a digital platform that uses people’s existing genetic information to support genetic research. If you are an adult and willing to share your 23andMe results from an Apple phone, you can likely participate.
La Jolla, CaliforniaAges 18 years+ - NCT03293758Recruiting
Study of food and gut bacteria changes over time
This study looks at how your diet affects the mix of gut bacteria over time. It may help researchers understand links between food, microbiome (gut bacteria), and health outcomes.
New York, New YorkAges 40 years+ - NCT03301038RecruitingPhase 2
Rifampin for a rare calcium disorder caused by CYP24A1
This trial tests rifampin to improve high blood and/or urine calcium that happens in people with CYP24A1 gene changes. It also checks safety by watching liver and kidney blood tests and pregnancy status.
Philadelphia, PennsylvaniaAges 6 months–65 years - NCT03298334RecruitingPhase 1/Phase 2
Testing vaginal bacteria transfer to newborns after C-section
This study looks at whether they can safely place “healthy vaginal bacteria” from the mother into the newborn after a scheduled C-section, and whether it improves the baby’s health. It only enrolls certain mothers and babies based on infection testing and other health factors.
Falls Church, VirginiaAges birth–50 years - NCT03299608Recruiting
Breath test to quickly detect infections in blood cancer patients
This study tests whether a quick breath test can detect infections early in people receiving intensive treatment for certain blood cancers or bone marrow transplant patients. If it works, it could help doctors find infections faster and adjust treatment sooner.
LeuvenAges 18 years+ - NCT03305835Recruiting
Genetic testing for inherited kidney stone causes
This study uses genetic testing to look for inherited (“monogenic”) reasons some people get kidney stones. It may help explain the cause of stones and calcium-related problems, which can guide future care for you or your family.
Rochester, MinnesotaAges Any age - NCT03311503RecruitingPhase 1/Phase 2
Gene therapy for X-linked SCID in young children
This trial tests a gene therapy using a lentivirus to give missing immune system instructions in children with X-linked SCID (SCID-X1). It also uses a low dose of targeted chemotherapy (busulfan) to help the new genes work, and it requires long-term follow-up for safety.
Los Angeles, CaliforniaAges birth–5 years - NCT03321656RecruitingPhase 2/Phase 3
Envarsus XR after kidney transplant to reduce hidden rejection
This study looks at whether Envarsus XR helps prevent “subclinical” (not obviously noticeable) kidney transplant rejection by changing blood immune test results. You may be able to join if you recently received a kidney transplant and can take the study medicine as required.
Lexington, KentuckyAges 18–75 - NCT03323216Recruiting
Testing heart-related blood markers in people with diabetes and heart failure
This study looks for blood markers that may help explain or predict heart problems in people who have type 2 diabetes and heart failure. To join, you may also need to be having a planned heart procedure where doctors can collect study information.
Aachen, North Rhine-WestphaliaAges 18 years+ - NCT03327961Recruiting
Study of implanted scaffolds with follow-up in adults
This study follows adults who have had at least one scaffold placed to see how they do over time. It also looks at whether people can stick with the required anti-platelet medicines for at least a year, and whether they can be followed for a year.
Agrigento, AgrigentoAges 18 years+ - NCT03327675Recruiting
PET imaging test to plan personalized prostate cancer treatment
This trial tests a high-precision scan that uses a prostate cancer marker to show where cancer may be. The goal is to use the scan results to better plan treatment, especially around surgery and lymph nodes, in certain patients with prostate cancer.
LeuvenAges 18 years+ - NCT03327779Recruiting
Bleeding disorders registry for blood-clotting conditions
This study is a registry that collects information about people with bleeding disorders like hemophilia A or B and von Willebrand disease. The goal is to better understand these conditions and improve care across participating treatment centers.
Montreal, QuebecAges Any age - NCT03331133Recruiting
Study of twins born in Guangzhou
This study focuses on twins who were born at Guangzhou Women and Children’s Medical Center. It aims to use pregnancy and baseline information to learn about twin outcomes and care, and it may help local doctors improve guidance for families in Guangzhou.
Guangzhou, GuangdongAges Up to 18 years - NCT03331302RecruitingPhase 1/Phase 2
Tested lung imaging scans in stable COPD patients
This study compares two ways of seeing how well your lungs work: a special MRI scan and another scan that uses a different gas. It may help researchers find which imaging test best reflects lung function in people with COPD.
Charlottesville, VirginiaAges 18 years+ - NCT03337932Recruiting
Shorter doxycycline course for multiple early Lyme skin rashes
This study looks at how long to take doxycycline for people who have multiple early Lyme disease skin rashes. It may help find the shortest effective treatment duration while keeping side effects low.
LjubljanaAges 18 years+
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Common questions
- Are there clinical trials for general population (no specific condition or disease)?
- Yes. Clin2 currently lists 10,808 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.