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
- NCT02553525Enrolling by invitation
Testing different stimulation patterns in Parkinson’s, tremor, and MS
This study tests whether changing the “stimulation pattern” in a deep brain stimulator can improve how well symptoms are controlled. If you are already getting (or replacing) a deep brain stimulator, this may help fine-tune the settings for you.
Gainesville, FloridaAges 21–80 - NCT02564692Enrolling by invitation
APOE gene testing registry to find Alzheimer’s prevention studies
This program enrolls people to get a gene test (APOE) so researchers can match you to Alzheimer’s prevention studies in the future. If you qualify, you do the test but you would not receive your gene test results.
Phoenix, ArizonaAges 50–90 - NCT02541435Recruiting
Breast cancer radiotherapy side effects study
This study looks at heart and blood-vessel side effects after modern radiation treatment for breast cancer, both soon after and years later. It may help doctors understand who is at risk and how to monitor heart health over time.
ÅlesundAges 30–70 - NCT02497521Recruiting
Registry for adults with ADPKD starting tolvaptan
This registry study collects information about adults with autosomal dominant polycystic kidney disease (ADPKD) who are starting or already taking tolvaptan. It may help researchers understand how tolvaptan is used in real life and what outcomes look like over time.
Müllheim, Baden-WurttembergAges 18 years+ - NCT02290834Recruiting
Studying brain and thinking changes after chemotherapy in older breast cancer patients
This study looks at how chemotherapy may affect memory and thinking, using thinking tests and possibly brain imaging. It compares older breast cancer patients who do and do not get chemotherapy, plus a group of healthy older adults.
Boston, MassachusettsAges 60 years+ - NCT02450006Recruiting
Intermountain INSPIRE health registry for patients and families
This study is a health registry that collects information from people seen at Intermountain Health facilities (and sometimes unaffected family members). It aims to better understand health conditions and how people do over time, and it may help improve future care.
Murray, UtahAges Any age - NCT02240862Recruiting
Carotid artery disease registry for symptom and risk groups
This is a registry that enrolls adults with narrowed carotid arteries (with symptoms or no symptoms). It collects health and treatment information to better understand which patients benefit from procedures and when.
Baltimore, MarylandAges 18–80 - NCT02422641RecruitingPhase 2
High-dose methotrexate for breast cancer in the brain lining
This Phase 2 trial tests whether giving high-dose methotrexate into the bloodstream can help treat breast cancer that has spread to the thin lining covering the brain and spinal cord. It may help reduce cancer in the leptomeningeal (brain-lining) area and control symptoms.
Baltimore, MarylandAges 18 years+ - 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+ - NCT02402426Enrolling by invitation
Online brain health registry for adults
This study is building an online registry where adults can share information to help researchers find people for future brain research. Joining may help future studies get the people they need.
San Francisco, CaliforniaAges 18 years+ - NCT01772602Recruiting
Join a national ALS patient registry in the U.S.
This study is a national registry that collects information from people with amyotrophic lateral sclerosis (ALS) to better understand the disease. Joining may help researchers learn about patterns of symptoms and care over time.
Atlanta, GeorgiaAges 18 years+ - NCT01676805Recruiting
Collecting tissue samples for lymphoma research
This study collects leftover tissue samples from patients with or without lymphoma to help researchers better understand lymph system cancers. It may be an option if you are already having a biopsy or surgery.
Bethesda, MarylandAges 18 years+ - NCT02140255RecruitingPhase 1/Phase 2
Intensive early HIV treatment in newborns to aim for remission
This study gives very early, intensive HIV medicine to infants diagnosed with HIV and follows them closely to see if HIV can go into remission (stop being detectable without ongoing treatment). It may help families understand whether treating right after birth can change a child’s long-term HIV outlook.
La Jolla, CaliforniaAges Up to 2 days - NCT01386437Recruiting
Study immune problems and fungal infections
This study looks at how immune system problems relate to fungal infections, using medical records and lab tests on blood and tissue. It may help researchers understand the cause of these infections—especially for people with inherited immune conditions—and improve future care.
Bethesda, MarylandAges 1 day–99 years - NCT02154035Recruiting
Measuring HIV reservoir in Ugandans with suppressed virus
This study in Uganda looks at the HIV 'reservoir' (where the virus hides in the body) in people whose HIV is already well-controlled with medications. It involves blood draws and genetic testing to learn more about the virus.
KalisizoAges 18–49 - NCT01730092Recruiting
Study of blood and imaging biomarkers in pulmonary artery hypertension
This study tracks natural changes in “biomarkers” (measurable signals in blood) and imaging findings in people with pulmonary arterial hypertension (PAH) or suspected PAH. It also includes healthy people for comparison, helping researchers understand what these signals mean over time.
Bethesda, MarylandAges 18–100 - NCT01927783Recruiting
Community weight loss program for people in Washington area
This study tests a community-based behavioral weight loss program. It may help participants learn practical habits for healthier weight by working with people in local faith communities.
Bethesda, MarylandAges 19–85 - NCT02015013RecruitingPhase 2
Blood cell collection study for immune system disorders
This study collects blood-forming cells from people with low CD4 counts and healthy volunteers to learn how the immune system works. It may help researchers better understand and treat conditions like idiopathic CD4 lymphocytopenia.
Bethesda, MarylandAges 18–65 - NCT02119611Recruiting
Deep brain stimulation for Parkinson’s, dystonia, or tremor
This study tests deep brain stimulation (DBS), a therapy that sends electrical signals to the brain, for movement problems like Parkinson’s disease, dystonia, and essential tremor. It may help people whose symptoms are not controlled enough with medications, or who already have a DBS device and need ongoing management.
Bethesda, MarylandAges 18–100 - NCT02147405Recruiting
PET scans and lymph node checks for HIV immune rebound
This study looks at people with HIV who either have not started HIV medicines yet or who recently started/changed them and may develop immune rebound (IRIS). It uses blood tests and optional PET/CT scans and lymph node biopsies to understand what’s happening in the body and to guide care.
Bethesda, MarylandAges 18–100 - NCT01621594Recruiting
Testing new radiation methods for heart CT images
This trial studies newer ways to take heart and blood vessel CT scans while using radiation more carefully. It may help improve image quality for people needing coronary CT angiography.
Bethesda, MarylandAges 18–100 - NCT01780168Recruiting
Study of metabolism, infection, and immunity in mitochondrial disease
This study looks at how metabolism, infections, and the immune system work together in people with mitochondrial disease. It aims to learn more about the condition and may help guide future treatments.
Bethesda, MarylandAges 4 weeks–115 years - NCT02019706RecruitingPhase 2
PET/CT scans to find the cause of ectopic Cushing syndrome
This trial tests several special imaging scans to help doctors locate the source of hormone overproduction in ectopic Cushing syndrome. It may help confirm where the problem is so treatment can be better targeted.
Bethesda, MarylandAges 18–80 - NCT01306084Recruiting
Study of viral infections in healthy and immune-compromised people
This trial studies how viruses affect the body, and how the immune system responds, in both healthy people and people with weakened immunity. It may include people who currently have a suspected or recent viral infection, close contacts, people around the time of a viral vaccine, and healthy adults used for comparison.
Bethesda, MarylandAges 6 months–120 years
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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.