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
- NCT06023407Enrolling by invitation
Heat therapy for blood sugar and Alzheimer's prevention
This study tests whether regular heat therapy (like sitting in a hot tub) can help improve blood sugar control and lower the risk of Alzheimer's disease in older women who have metabolic problems.
Kansas City, KansasAges 65 years+ - NCT05913999Enrolling by invitation
PET and heart scans during early chemotherapy
This trial studies how a specialized heart imaging test (PET/MPI) changes during the start of chemotherapy for cancer patients. It may help researchers understand whether this monitoring approach detects heart strain early and keeps patients safer during treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT05897957Enrolling by invitation
Follow-up study for people who received BRT-DA01
This study is for people with Parkinson’s disease who previously took part in an earlier BRT-DA01 trial and finished it (or stopped it). It mainly checks how participants do over time after that earlier treatment.
Orange, CaliforniaAges 50–78 - NCT05859568Enrolling by invitation
Hearing device fit checks and baseline performance study
This study measures how well hearing devices work and how they are best fitted at the start. It helps the company collect baseline information so future testing and fitting can be improved.
Valencia, CaliforniaAges 8 years+ - NCT05805839Enrolling by invitationPhase 2
Study uses brain scans to understand demyelinating diseases
This trial compares scan results in people with multiple sclerosis or related demyelinating conditions versus people without inflammatory demyelinating diseases. The goal is to better understand what’s happening in the brain and how sex differences may play a role.
Rochester, MinnesotaAges 18 years+ - NCT05779475Enrolling by invitation
Study of people with moderate Parkinson’s disease
This is an observational study, meaning it doesn’t test a new drug—researchers mainly follow people to better understand moderate Parkinson’s disease and who may be good candidates for future cell therapy. If you have moderate symptoms that aren’t well controlled with tablets, this study may help inform better future treatments.
Irvine, CaliforniaAges 50–68 - NCT05764642Enrolling by invitationPhase 2
Ultrasound imaging of kidney blood vessels in kidney disease
This Phase 2 study tests an ultrasound imaging method to look at tiny blood vessels in the kidneys. It may help doctors better understand chronic kidney disease, especially when a kidney biopsy is already planned for medical reasons.
Jacksonville, FloridaAges 18 years+ - NCT05758467Enrolling by invitation
Study linking adult oral health, social factors, and heart health
This study looks at how people’s oral health in adulthood relates to social factors and heart health. To join, you must have already taken part in specific past health surveys.
BergenAges 71–72 - NCT05722145Enrolling by invitation
Study to assess heart artery blockage risk from CT scans
This study looks at how likely people are to have coronary artery disease (heart artery blockage) based on results from CT scans. It may help doctors better estimate risk and decide what follow-up care you may need.
Singapore, SingaporeAges 21–99 - NCT05714293Enrolling by invitation
CT measurements after surgical aortic valve replacement
This study uses a CT scan (with contrast dye) to measure the coronary artery openings after people have a new aortic valve placed surgically. It aims to see how to best plan or understand coronary blood flow after the surgery.
RomaAges 18–80 - NCT05691231Enrolling by invitation
Follow-up study for the NuVasive Simplify Disc implant
This study checks how safe and how well a specific artificial disc (the NuVasive Simplify Disc) works over the long term at two implant sizes/levels. It is for people who were already enrolled in an earlier disc study and are still willing to participate.
Charlotte, North CarolinaAges 18 years+ - NCT05678491Enrolling by invitation
Endoscopic treatment for reflux after gastric sleeve surgery
This trial studies an endoscopic procedure to treat gastroesophageal reflux disease (GERD) in people who had gastric sleeve surgery. It may help if reflux symptoms are not controlled on once-daily acid medicine (PPI) or if you cannot tolerate it and want an alternative.
TrondheimAges 18–70 - NCT05677386Enrolling by invitation
CT heart scan trial to prevent first heart problems
This trial uses a special CT scan of the heart’s arteries to better predict who is at risk of future heart problems. It may help your care team decide how best to lower risk early.
CopenhagenAges 40 years+ - NCT05573542Enrolling by invitation
Study early Parkinson signs in people with IBS
This study looks for early clues of Parkinson’s disease in people who have IBS (irritable bowel syndrome), and compares them with people without IBS. The goal is to understand whether gut symptoms or test results can help spot Parkinson’s earlier.
ÖrebroAges 18–85 - NCT05563259Enrolling by invitation
Brain and memory testing in fatty liver disease
This study checks how well your brain and memory work in people with non-alcoholic fatty liver disease. It also looks at brain function with special assessments, which may help researchers understand what changes happen with this condition.
Nanjing, JiangsuAges 20–75 - NCT05551559Enrolling by invitation
How bariatric surgery changes liver metabolism in fatty liver disease
This study looks at how bariatric (weight-loss) surgery affects how your liver processes nutrients in people with non-alcoholic fatty liver disease. It may help researchers understand what changes in the body after surgery and whether that could guide better future care.
HelsinkiAges 18–75 - NCT05504902Enrolling by invitation
Device training for advanced Parkinson’s using touch feedback
This study tests whether coordinated touch (vibrotactile) training can improve symptoms in people with Parkinson’s. You may be asked to use a special device and attend virtual check-ins, with some visits requiring stopping Parkinson’s meds for short periods.
Stanford, CaliforniaAges 18 years+ - NCT05457998Enrolling by invitation
Study of Alzheimer’s brain markers using memory testing
This trial looks for signs of Alzheimer’s disease in the brain by using memory and thinking tests, and related study procedures. It may help researchers find better ways to identify Alzheimer’s-related changes earlier.
Providence, Rhode IslandAges 50–80 - NCT05374590Enrolling by invitationPhase 2/Phase 3
Long-term safety study of efgartigimod for young myasthenia gravis patients
This trial checks the long-term safety of efgartigimod given through an IV and as a quick under-the-skin injection in children with generalized myasthenia gravis (gMG). It may help your care team understand how safely this treatment can be used over time for kids who already took related study treatments.
Chicago, IllinoisAges 2–18 - NCT05267990Enrolling by invitation
CT calcium scan to prevent heart problems in diabetes
This trial studies whether using a heart CT “calcium score” to guide prevention can lower the chance of major heart disease in people with type 2 diabetes who have other heart risk factors. It may help by targeting prevention more personally, based on your calcium score.
YilanAges 40 years+ - NCT05204446Enrolling by invitation
Behavior program for teens with celiac disease
This study tests a behavioral (coaching-style) program to help teens manage celiac disease. It may help by supporting teens and their parent/guardian with habits and coping skills.
Washington D.C., District of ColumbiaAges 12–16 - NCT05166655Enrolling by invitation
Recording brain signals during deep brain stimulation for Parkinson’s
This study uses special recordings during deep brain stimulation surgery to better understand how movement gets easier in Parkinson’s disease. It may help researchers improve how this therapy is used for advanced symptoms.
Los Angeles, CaliforniaAges 18 years+ - NCT05166447Enrolling by invitation
Check-in study for people from the Inter99 health survey
This study is a long-term follow-up of people who took part in the Inter99 baseline exam. It involves a 3-hour check-in, and it can help researchers learn how people’s health changes over time.
Glostrup MunicipalityAges 50–82 - NCT05115877Enrolling by invitation
Looking back at treatment outcomes for stomach or gut diseases
This study looks at past care for adults who had non-cancer or cancer of the gastrointestinal (stomach and intestines) tract and compares treatment outcomes. It may help improve how doctors manage these conditions in the future.
Richardson, TexasAges 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.