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
- NCT03687710Enrolling by invitation
Alzheimer’s registry for people with memory concerns or risk
This is a research registry that helps doctors compare how different memory and Alzheimer’s risk groups change over time. It may help researchers learn which people are more likely to develop Alzheimer’s and how to better track early changes.
New York, New YorkAges 18–99 - NCT03524222Recruiting
Home hospital care for adults after sudden illness
This trial tests whether certain adults can safely receive hospital-level care at home instead of staying in the hospital, using a home care team. It may help you recover in your own home if your condition fits their plan and you have support at home.
Boston, MassachusettsAges 18 years+ - NCT03674645Recruiting
MRI test in healthy adults to improve scan sequences
This study tests and fine-tunes new MRI scan methods on a research MRI machine. It aims to improve how MRI images are captured, which could help future patients get clearer scans.
PessacAges 18 years+ - NCT03586258Recruiting
Brain scan and memory testing for people with brain injury
This study uses memory and thinking tests along with brain scans (likely MRI) to understand how different types of brain damage affect thinking. It may help doctors learn more about brain-related cognitive problems.
CaenAges 18 years+ - NCT03535545RecruitingPhase 1
PET-MRI imaging test in lung cancer and lung disease
This Phase 1 study tests a radioactive imaging agent to help doctors see disease activity in the lungs using PET/MRI scans. It includes healthy volunteers and people with lung cancer, idiopathic pulmonary fibrosis, lung transplant–related lung problems, or certain medication-related lung inflammation.
Boston, MassachusettsAges 18–80 - NCT03474029RecruitingPhase 2/Phase 3
Daily rifapentine treatment test for latent tuberculosis infection
This trial studies whether taking rifapentine every day is safe and helps prevent active tuberculosis (TB) in people who have latent TB infection. It aims to find the best way to stop TB from becoming a serious illness later.
Denver, ColoradoAges Any age - NCT03443999Recruiting
Registry to follow patients with a sirolimus stent
This study is a follow-up registry that tracks how people do after doctors place a specific type of drug-eluting coronary stent. It may help doctors understand safety and outcomes of the Supraflex stent in real-world care.
Breda, North BrabantAges 18 years+ - NCT03331380Recruiting
Low-energy MRI study for people with or without heart disease
This study tests a special MRI method that uses lower energy exposure. It aims to improve how well researchers can scan the heart and other organs while keeping the scan as safe and comfortable as possible.
Bethesda, MarylandAges 18–100 - NCT03307304Recruiting
Studying different forms of childhood brain-wasting disease
This study looks at people with CLN3 and other related forms of NCL (a childhood brain-wasting illness) to better describe symptoms and disease changes over time. You may be followed with regular check-ins, medical records, and sometimes NIH visits or sample collection.
Bethesda, MarylandAges 1 week–100 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+ - NCT03385876Enrolling by invitation
Rapid whole genome sequencing for children with suspected genetic illness
This study quickly reads a child’s DNA using whole genome sequencing to look for genetic causes of symptoms. It may help families and doctors better understand an underlying genetic condition and guide medical care.
San Diego, CaliforniaAges Any age - NCT03445585Recruiting
Biobank study for primary sclerosing and primary biliary cholangitis
This study collects and stores samples from people with PSC (primary sclerosing cholangitis), PBC (primary biliary cholangitis), and some related liver conditions. Researchers use these samples to better understand these diseases and support future research.
Rochester, MinnesotaAges 18–85 - NCT03459820Enrolling by invitationPhase 2/Phase 3
PET/CT scan study for high-risk or returning prostate cancer
This trial studies how a special PET/CT scan (using 18F-DCFPyL) helps evaluate prostate cancer that is either high-risk at diagnosis or has come back based on PSA blood tests. It may help your care team better stage (map) the cancer and guide next steps.
Montreal, QuebecAges 18 years+ - NCT03334708Recruiting
Blood test study for pancreatic cancer
This study looks at blood tests to find markers that may help detect and monitor pancreatic cancer. It compares people with pancreatic cancer to those with benign pancreatic conditions and healthy volunteers.
Middletown, New JerseyAges 18 years+ - NCT03301038RecruitingPhase 2
Rifampin for high blood calcium
This study tests if rifampin, a medicine usually used for infections, can lower high calcium levels in people with a rare genetic condition affecting vitamin D. It might help reduce symptoms like kidney stones or bone pain.
Philadelphia, PennsylvaniaAges 6 months–70 years - NCT03474237Enrolling by invitation
Study following people newly diagnosed with adrenal conditions
This study follows adults with a new adrenal diagnosis to learn how adrenal diseases behave over time. It may help doctors better understand these conditions and improve future care.
SeoulAges 19 years+ - NCT03492372Enrolling by invitation
Study of molecular changes in removed spinal tissue
This study looks at what’s happening at the molecular level in spinal tissue that is normally removed during surgery. It may help researchers better understand spinal conditions and improve future treatments, using tissue provided as part of routine care.
Rochester, MinnesotaAges 1–80 - NCT03407833Enrolling by invitation
Study changes in the body after weight, gut, or liver treatment
This study looks at how the body’s insulin-sensitivity (how well your body uses sugar/insulin) and organ function change after certain medical procedures. It may help researchers understand why some people improve after surgery or liver transplant and guide future care.
Nashville, TennesseeAges 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+ - 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 - NCT03480633Recruiting
Heart failure precision medicine registry
This registry collects health and heart-related information to better understand heart failure (with preserved or reduced pumping strength) and guide more precise care. You may be asked to share tests and results, and help researchers learn which patterns match different types of heart failure.
Boston, MassachusettsAges 18 years+ - NCT03384537RecruitingEarly Phase 1
Tropolone mouthwash test in healthy adults
This early trial compares a mouthwash that contains tropolone versus a mouthwash without tropolone to see how well each works against germs in the mouth. You may be asked to pause your usual mouth-cleaning routine for a few days beforehand.
CairoAges 18–45 - 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 - NCT02777879Recruiting
Study gut-like lung bacteria and inflammation in early COPD
This study looks at the lung’s tiny bacteria (microbiome) and inflammation in people with early COPD who have a smoking history. It compares them with smokers who have normal breathing tests, to better understand what may drive COPD early on.
New York, New YorkAges 18–70
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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.