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 10,742 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03815656Enrolling by invitation
Closed-loop deep brain stimulation for Parkinson’s medication side effects
This study tests a “smart,” closed-loop deep brain stimulation (DBS) system that adjusts stimulation based on your brain signals. It’s designed for people with Parkinson’s who get troubling medication side effects, with the hope of improving symptoms more smoothly.
Durham, North CarolinaAges 18–75 - NCT03756649Enrolling by invitation
IBD biobank study for adults and young adults
This study collects and stores information and samples from people with inflammatory bowel disease (IBD) to help researchers learn more and improve care. Your participation mainly helps build a “biobank,” which can support future studies.
Rochester, MinnesotaAges 18–85 - 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 - NCT03649490Enrolling by invitation
Testing new spinal implant materials for XLIF fusion
This study compares different advanced materials used in a specific spinal fusion surgery (XLIF). It aims to see which implant material helps the bone fuse well and safely over time.
Hartford, ConnecticutAges 18–80 - NCT03576573Enrolling by invitation
Follow-up study for specific hip replacement components
This study checks outcomes after a specific type of hip surgery using specific brand parts. You may help by sharing follow-up visit information so the sponsor can confirm the components work as expected in everyday patients.
BuxtehudeAges 21 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 - 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+ - 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+ - 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+ - 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 - NCT03244020Enrolling by invitationPhase 4
Aspirin or low-dose blood thinner after bone or leg surgery
This trial compares aspirin versus a low-dose injectable blood thinner (LMWH) to prevent blood clots after certain orthopedic cancer surgeries. It may help lower the risk of dangerous clotting while balancing bleeding and side effects.
Los Angeles, CaliforniaAges 18 years+ - NCT03170141Enrolling by invitationPhase 1
T-cell therapy for recurrent brain tumor
This Phase 1 study tests modified immune T-cells to treat recurrent glioblastoma (a fast-growing brain tumor) that can be seen on scans. Because it’s early-stage, the goal is mainly safety, but you may be helping researchers understand if the treatment can shrink tumors.
Shenzhen, GuangdongAges 6–70 - NCT03149341Enrolling by invitation
MRI and computer-heart simulations for heart disease
This study uses MRI scans and computer simulations to learn more about how the heart and blood flow work in people with certain heart or lung conditions. It may help researchers better understand heart problems and improve future care.
Palo Alto, CaliforniaAges Any age - NCT00471978Recruiting
Analyzing DNA from blood and lung tumor tissue
This study looks at DNA from blood samples and lung tumor tissue in people newly diagnosed with primary lung cancer. The goal is to learn more about the cancer’s biology and possibly guide better future care.
Boston, MassachusettsAges 18–120
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Common questions
- Are there clinical trials for general population (no specific condition or disease)?
- Yes. Clin2 currently lists 10,742 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.