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
- NCT03790943Recruiting
Health study of heart problems in childhood cancer survivors
This study follows people who had cancer as children to learn about heart-related changes years after treatment. It may help doctors better understand who is at risk and how to monitor the heart in long-term survivors.
Basel, Canton of Basel-CityAges 18 years+ - NCT03791970Recruiting
Compare stent post-dilation using drug balloon or regular balloon
This study looks at whether using a drug-coated balloon (DCB) versus a regular balloon (POBA) right after placing a stent works better in artery blockages in the thigh/knee area. It may help improve blood flow and reduce the chance the artery narrows again.
Shanghai, Shanghai MunicipalityAges 18–80 - NCT03799354Recruiting
Strength training study for people with COPD
This trial tests whether a maximal strength training program can help people with COPD who are stable. It is looking at people with moderate-to-severe airflow limitation and excludes several other lung and health problems.
Lumezzane, BresciaAges 50–80 - NCT03797690Recruiting
Needle procedure for Dupuytren’s hand contracture
This trial looks at whether a minimally invasive needle procedure can improve hand stiffness caused by Dupuytren’s disease. It may help reduce finger bending that affects how you use your hand.
ParisAges 18 years+ - NCT03806283Recruiting
Study how pregnancy blood vessels change in late pregnancy
This study looks at how blood vessels adapt during late pregnancy, especially around the time of a C-section. Your participation may help researchers understand normal pregnancy changes and how they differ in certain complications.
Madison, WisconsinAges 18–40 - NCT03807310Recruiting
Vitamin and fatty-acid supplement study for COPD recovery
This trial tests whether a targeted supplement (vitamins D and fatty acids) can help people with COPD. It’s meant for people who are medically stable and not currently dealing with a recent COPD flare-up.
Maastricht, LimburgAges 18 years+ - NCT03808337RecruitingPhase 2
SBRT radiation plus standard treatment for spread cancer
This trial looks at adding a focused radiation treatment called SBRT to standard care for cancers that have spread to a limited number of spots. It aims to control those spread-out tumors while still using the usual cancer treatment plan.
San Carlos, CaliforniaAges 18 years+ - NCT03811236Recruiting
Test cold exposure to activate body fat and reduce liver fat
This study tests whether controlled cold exposure can activate “brown fat” and affect liver fat buildup. It may help people with excess liver fat, measured on imaging, but it has several health and medication exclusions.
ViennaAges 18–50 - NCT03818334RecruitingPhase 2/Phase 3
Cyclophosphamide after transplant for blood cancer without sibling donor
This trial studies giving cyclophosphamide after a stem cell transplant when there is no matched sibling donor, but a well-matched unrelated donor is available. It aims to improve outcomes for people with blood cancers undergoing this transplant.
São Paulo, São PauloAges 1–75 - NCT03821051Recruiting
Registry for heartbeat rhythm problems from structural heart disease
This is a registry that collects information about people with certain dangerous heartbeat rhythm problems caused by structural (anatomical) heart diseases. It may help researchers understand patterns and risks, and improve how these conditions are studied and managed.
Beijing, Beijing MunicipalityAges Any age - NCT03826264Recruiting
Research registry for people getting TAVR
This is a research registry that collects information about people who receive TAVR, a procedure to help open a narrowed heart valve. It may help doctors understand outcomes and improve care, but it is not designed as a drug or device trial by itself.
Stanford, CaliforniaAges 19 years+ - NCT03827031Recruiting
Medication review for older surgical patients
This trial checks whether a team-led medication review during a hospital stay helps older adults avoid medication problems and improves outcomes after surgery. It focuses on people taking several medications and compares their care with a structured medication assessment plan.
GrenobleAges 65 years+ - NCT03827187Recruiting
Brain signal training to detect awareness
This study checks whether brain activity patterns can show when a person is aware, even if they can’t reliably communicate. If signs of awareness are found (or if you already know you are aware), the study may also train a brain-computer interface to support communication or movement assistance.
DublinAges 10–80 - NCT03836196Recruiting
Improve treatment for advanced prostate cancer with careful planning
This study looks at how to best plan and deliver treatment for men with advanced local prostate cancer. It may help find the most effective approach while keeping side effects manageable.
Vancouver, British ColumbiaAges 18 years+ - NCT03836950RecruitingPhase 1/Phase 2
Brain stimulation to improve thinking in Parkinson’s
This trial studies a noninvasive treatment called rTMS to help improve thinking and memory in people with Parkinson’s who have mild cognitive problems. It may help strengthen brain function, but it also has strict safety and eligibility rules to protect against seizure and metal-related risks.
Chicago, IllinoisAges 50 years+ - NCT03841617RecruitingPhase 2
Measure radiation in thyroid cancer using a special PET-CT scan
This trial tests how much radiation a specialized whole-body PET/CT scan delivers in patients with differentiated thyroid cancer. It may help doctors better plan treatment for cancer that persists, returns, or has spread—especially when radioactive iodine (RAI) may or may not work.
Bethesda, MarylandAges 18–90 - NCT03844360RecruitingPhase 4
Personalized dosing of cancer or infection medicines in children
This trial looks at how to adjust the dose of cancer medicines and/or anti-infection medicines in children who have blood-related cancers. The goal is to make dosing fit each child’s needs while they receive standard treatment.
Xuzhou, JiangsuAges 1 day–18 years - NCT03852407RecruitingPhase 2
Two kinds of conditioning before matched stem cell transplant
This trial compares two reduced-intensity conditioning regimens before you receive stem cells from a donor who matches your HLA type. It aims to find which approach works better and is safer for certain blood cancers.
AntwerpAges 18–75 - NCT03855657Recruiting
Biobank study of gut microbes, genes, and blood chemistry
This study collects samples to learn how gut microbes, genetics, and body chemistry may relate to Crohn’s disease or ulcerative colitis. Your information and samples may help researchers understand disease patterns, but it does not test a new drug.
Hong KongAges 18 years+ - NCT03860857RecruitingPhase 3
Study biomarkers in memory aging and brain health
This Phase 3 study looks for blood/brain “biomarkers” linked to aging, memory changes, and early brain degeneration. It may help researchers better identify who is at risk and how biology relates to thinking and memory, using brain scans and thinking tests.
Irvine, CaliforniaAges 60 years+ - NCT03862859RecruitingPhase 4
Warfarin safety for people with atrial fibrillation on dialysis
This trial studies whether the blood thinner warfarin is safe and effective for preventing stroke and blood clots in people who have atrial fibrillation and need long-term dialysis. It may help your care team better balance clot prevention against bleeding risk.
Herlev, HerlevAges 18 years+ - NCT03872102Recruiting
Brain imaging study to track Parkinson-related disease changes
This study uses brain scans and clinical check-ins to better diagnose and predict how Parkinson-related conditions may progress over time. It may help researchers find markers that explain why symptoms change, and could improve future care.
Dallas, TexasAges Any age - NCT03878121RecruitingPhase 1
Ad4-HIV vaccine study for healthy adults and partners
This Phase 1 study tests whether an experimental HIV vaccine (made from a harmless viral vector) is safe and helps the body build immune defenses. It includes healthy volunteers and, in some groups, their close partners, with careful screening and follow-up visits.
Bethesda, MarylandAges 18–65 - NCT03880708Recruiting
Registry for inherited dangerous heart rhythm conditions
This study is a heart rhythm registry for people with inherited conditions that can cause abnormal heart beats. By collecting health and testing information, researchers hope to better understand these conditions and improve care.
Beijing, Beijing MunicipalityAges 1 hour–90 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.