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
- NCT04909541Recruiting
Questionnaire score for symptoms from a ureter stent
This trial is developing a Canada-based way to score how bothersome a ureter (kidney-to-bladder) stent symptoms feel. It may help doctors better understand and treat stent side effects.
Los Angeles, CaliforniaAges 18 years+ - NCT04911738Recruiting
Virtual reality glasses to improve balance after stroke
This trial studies whether virtual reality glasses training can improve balance and body alignment after a recent stroke. It will also compare how stroke participants with balance problems respond versus people without stroke.
GrenobleAges 18–80 - NCT04912531Recruiting
Virtual reality and smell tools to ease surgery pain
This trial tests whether a combination of virtual reality and guided smells can reduce pain and anxiety around major heart and chest surgeries. If you’re scheduled for one of the listed operations, the study may help make recovery feel more comfortable by using sensory-based distraction.
Boston, MassachusettsAges 18 years+ - NCT04912648Recruiting
Study of metabolic risk and androgens in Irish women
This study looks at how hormones called androgens may relate to “metabolic risk” (things like blood sugar and weight-related health) over time. It mainly needs healthy adult women who can avoid certain medications during the weeks before starting.
DublinAges 18 years+ - NCT04916210Recruiting
Study how stroke type affects thinking and recovery
This study looks at what predicts memory and thinking problems after different types of stroke or brain bleeding, and how blood-vessel changes relate to recovery. You may be invited if you recently had a stroke/bleed and can complete a baseline check within 6 weeks.
Phoenix, ArizonaAges 18 years+ - NCT04916340Recruiting
Exercise program study for heart blood vessel function and anxiety
This study tests whether an exercise training program can improve how well blood vessels work in people with PTSD or generalized anxiety. You may be placed into a PTSD, GAD, or healthy control group based on questionnaire scores.
Richmond, VirginiaAges 18–35 - NCT04918095Recruiting
COPD home monitoring with a phone or tablet
This study tests a home monitoring program for people with COPD (a long-term lung condition) to track symptoms using a phone or tablet. It may help clinicians spot changes earlier and improve how COPD care is managed.
Ventura, CaliforniaAges 40–100 - NCT04918524Recruiting
Pregnancy outcomes in women with certain autoimmune conditions
This study looks at the typical pregnancy course and outcomes for women with APS or UCTD, two autoimmune-related conditions. It also checks how these conditions and treatments may affect pregnancy, so doctors can better plan care.
Jinan, ShandongAges 20–45 - NCT04920032RecruitingPhase 1
Blood test–guided extra treatment for colon cancer recurrence risk
This Phase 1 study uses a blood test called ctDNA to decide whether and how to adjust treatment in people with colon cancer who still have a small amount of disease left after surgery. If your blood test remains positive, the trial aims to reduce recurrence risk by guiding treatment changes.
Orange, CaliforniaAges 18 years+ - NCT04921020Recruiting
Deep learning study of eyelid movement and eyelid shape
This study uses a computer method to measure your eyelid shape and how your eyelid moves over time. It may help doctors better assess eyelid problems such as drooping or spasms using images or video.
Hangzhou, ZhejiangAges Any age - NCT04921943RecruitingPhase 4
Hypertonic saline to treat MAC lung infection
This trial tests whether inhaled hypertonic saline can improve symptoms and lung health in people with a specific lung infection called MAC. It targets adults with confirmed MAC infection and bronchiectasis who are not already on certain MAC medications.
New York, New YorkAges 18 years+ - NCT04922762Recruiting
Exercise program study for blood vessel function in mental health
This study looks at how an exercise program affects blood vessel function (“vascular function”) in people with certain mental health conditions, and compares them to people without those symptoms. It may help researchers understand whether exercise could improve heart and blood vessel health alongside mental health symptoms.
Richmond, VirginiaAges 18–35 - NCT04926597Recruiting
Extra nutrition after hospital discharge for higher-risk patients
This study looks at whether continuing nutritional support after you leave the hospital can reduce death risk and help you recover better—like improving strength, frailty, and daily functioning. It targets people who are at higher risk of poor nutrition during/after their hospital stay.
BarcelonaAges 18 years+ - NCT04927429Recruiting
MRI study to improve heart imaging
This trial helps develop and fine-tune MRI scans that look at the heart and blood vessels. It may help people with heart-related symptoms or conditions by improving how MRI images are created and interpreted.
Washington D.C., District of ColumbiaAges 18–100 - NCT04927416RecruitingPhase 2
Ga-DOTATATE PET/CT scan in metastatic thyroid cancer
This study tests whether a specific special scan (68-Gallium DOTATATE PET/CT) can help doctors better see where thyroid cancer has spread. It focuses on certain types of thyroid cancer and compares how well the scan images metastases.
Bethesda, MarylandAges 18–98 - NCT04929821Recruiting
Study of a dissolvable stent for bile duct narrowing
This study is testing a new type of stent that eventually dissolves on its own. The stent is placed in a narrowed bile duct to open it up and let bile flow properly. This might help people with strictures caused by scarring, stones, past surgeries, or certain bile duct cancers.
Hong KongAges 18 years+ - NCT04931160Recruiting
Study for suspected Sjögren’s disease diagnosis
This study follows people who may have Sjögren’s disease to better understand how to diagnose it. If you have symptoms like dry eyes or dry mouth, this could help researchers confirm the diagnosis and learn what tests best explain it.
BrestAges 18 years+ - NCT05735717RecruitingPhase 2
T-cell transplant using depleted receptors for blood cancers
This Phase 2 study tests a specialized stem cell transplant that removes certain immune “T-cell” receptors to help treat blood cancers like acute leukemia. It may help your body rebuild a healthier immune system after high-dose treatment.
Minneapolis, MinnesotaAges Up to 60 years - NCT05533528Recruiting
Save gum tissue in surgery for severe periodontitis
This trial studies a way to preserve gum (periodontal) “granulation” tissue during surgical treatment for severe periodontitis (gum disease). It may help patients heal better after surgery, especially when deep gum pockets do not improve after non-surgical care.
MurciaAges 18 years+ - NCT07224490RecruitingPhase 1
Kisspeptin test for brain function after COVID-19
This study tests how the brain's reproductive hormone system works after a COVID-19 infection using a substance called kisspeptin. It may help explain symptoms like changes in periods or hormone levels in people with long COVID.
Boston, MassachusettsAges 18–60 - NCT04601038RecruitingPhase 2
Testing a stress-blocking drug for early Alzheimer's risk
This study tests a new medication, CORT108297, that may help protect the brain from the harmful effects of stress in people at risk for Alzheimer's disease. It is looking for adults age 55 and older who either have mild memory problems or are healthy but have a family history, APOE4 gene, or memory concerns.
Baltimore, MarylandAges 55 years+ - NCT07145866RecruitingPhase 4
Varenicline and TMS for quitting nicotine use
This study tests whether combining the medication varenicline (Chantix) with a special brain stimulation treatment (TMS) can help people quit vaping or smoking nicotine. If you're motivated to quit and use nicotine daily, you may be able to join.
Boston, MassachusettsAges 18–65 - NCT02604563Recruiting
Aging, blood changes, and health in older adults
This study examines why some older adults develop changes in their blood cells that may affect their health. Researchers will look for links between these blood changes, aging, and common health problems in older people.
St Louis, MissouriAges 50 years+ - NCT07697781Recruiting
Comparing cervical preparation before hysteroscopy in postmenopausal women
This study compares two ways to prepare the cervix before a hysteroscopy (a camera test) in postmenopausal women. It aims to see which method makes the procedure easier and more comfortable.
Tunis, Tunis GovernorateAges Any age
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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.