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
- NCT05061368RecruitingPhase 2
Sildenafil by mouth to improve breathing in COPD
This Phase 2 trial tests whether sildenafil tablets can improve exercise ability, shortness of breath, and heart-lung function in people with COPD. It also compares against people without COPD to better understand how sildenafil affects breathing tests.
Edmonton, AlbertaAges 40–80 - NCT05061329Recruiting
Learn how the nose’s microbes relate to health and disease
This study explores the tiny living organisms (microbes) in your nose and how they may be linked to health problems. It may help researchers better understand disease triggers and potential new prevention or treatment ideas.
Holstebro, Central JutlandAges 18 years+ - NCT05065151Recruiting
Studying motivation in Parkinson’s using brain stimulation recordings
This study looks at what drives motivation in people with Parkinson’s disease (or dystonia) by using recordings from an implanted brain stimulation device. It may help researchers understand brain signals behind motivation and improve future treatments.
San Francisco, CaliforniaAges 18 years+ - NCT05065060Recruiting
Parkinson study tracking health online and long-term
This study aims to better understand Parkinson’s disease over time by collecting health information online. You may join if you have Parkinson’s, or if you don’t, to compare changes and help researchers find useful markers.
San Francisco, CaliforniaAges 18 years+ - NCT05065450Recruiting
Testing whether brain stimulation improves memory in epilepsy
This trial looks at ways to improve memory by targeting specific deep brain areas in people with epilepsy. You may be eligible if you are already scheduled for long-term video monitoring with implanted depth electrodes in the memory-related regions (amygdala, hippocampus, and nearby areas).
St Louis, MissouriAges 18–75 - NCT05066139Recruiting
Study of older adults with digestive cancer
This study checks how well different care plans work for people age 75 and older who have digestive cancer and are about to start chemotherapy or targeted therapy. The goal is to improve treatment support and outcomes by doing a detailed, multidisciplinary evaluation.
StrasbourgAges 75 years+ - NCT05066594Recruiting
Registry for a procedure to treat long-term reflux
This is an observational study (no experimental treatment) that follows people who choose a specific procedure called transoral incisionless fundoplication (TIF) with the EsophyX device for long-term acid reflux. It aims to track outcomes for up to 5 years at San Raffaele Hospital.
MilanAges 18–80 - NCT05066763Recruiting
Surveys for people with Parkinson’s and their care partners
This trial is for people with Parkinson’s disease, their care partners, and health professionals who work with people with Parkinson’s. The Parkinson’s Foundation will contact you to collect survey information and may invite you to future research opportunities.
Miami, FloridaAges 18 years+ - NCT05067231Recruiting
UAB heart research biobank for adults 18 and older
This study builds a heart-focused research database by enrolling adults who are willing to provide information and/or samples for future cardiovascular research. It may help researchers study heart disease and develop better treatments over time.
Birmingham, AlabamaAges 18 years+ - NCT05072483Recruiting
Study of CADASIL’s natural course using blood tests and MRI
This study follows people with CADASIL (a genetic brain blood-vessel condition) to learn how it progresses over time. It uses blood and possibly tissue samples and brain MRI scans to better understand changes in the brain.
Bethesda, MarylandAges 18–100 - NCT05074732Recruiting
Study of forensic mental health admissions after a service move
This study looks at all adult admissions to Ireland’s National Forensic Mental Health Service during a specific time window. It may help improve how the new forensic service at Portrane runs in the future.
DublinAges 18 years+ - NCT05080634Recruiting
Study acid reflux and throat irritation after POEM
This study looks at how often acid reflux (heartburn) and esophagus irritation happen after a procedure called POEM for achalasia, and what factors make it more likely. Your answers and usual tests may help researchers understand who is at higher risk and why.
WarsawAges 18 years+ - NCT05085704Recruiting
Brain scans to study metabolism in healthy and diabetic people
This study uses MRI brain scans at different strengths to measure how the brain uses energy (metabolism) in health and in people with genetically confirmed G1D. It may help researchers understand brain energy changes related to metabolic disease and diabetes.
New York, New YorkAges 16–80 - NCT05090865Recruiting
Increase dietary potassium before dialysis
This study tests whether eating a higher-potassium diet is safe and helpful for people with early-to-moderate kidney failure who are not yet on dialysis. You may be asked to follow a specific diet plan and have blood tests to monitor potassium and other health markers.
Winnipeg, ManitobaAges 18 years+ - NCT05091372RecruitingPhase 2
Maintenance treatment after transplant for newly diagnosed myeloma
This trial tests whether using belantamab mafodotin plus lenalidomide as long-term maintenance after an autologous stem cell transplant can keep multiple myeloma under control, guided by minimal residual disease (MRD). MRD is a very small amount of disease that may remain after transplant, and the study helps see if treating those patients better improves outcomes.
Houston, TexasAges 18 years+ - NCT05093764Recruiting
Test how well debris is captured during valve-in-valve TAVR
This trial studies a device and a technique meant to capture debris during a repeat aortic valve procedure (valve-in-valve TAVR). It may help doctors understand if the approach reduces risk from material that can break loose during the procedure.
Kansas City, MissouriAges 18 years+ - NCT05094284Recruiting
Heart stent registry for adults needing coronary stenting
This registry enrolls adults who are about to get a heart stent and have significant blockage in their coronary arteries. It aims to collect real-world information about stenting for different types of heart conditions, which may help improve future care.
Shatin, New TerritoriesAges 18 years+ - NCT05095714Recruiting
Fast MRI for close monitoring of high-risk liver cancer
This trial studies a faster MRI scan to help track early liver cancer in people who have cirrhosis and are considered high risk. It may improve how often and how well doctors can look for changes without using longer imaging sessions.
BondyAges 18 years+ - NCT05102747Recruiting
Surgery-like brain radiation for up to 5 metastases
This trial compares two ways of giving focused radiation to the brain for people with a limited number of brain metastases. It aims to see which schedule works best (and is likely best for costs and quality of life).
BordeauxAges 18 years+ - NCT05100940Recruiting
Study after a heart procedure complication
This trial looks at what happens after complications during or after a heart procedure called coronary angiography or PCI. It may help improve care and outcomes for people who experience a problem during treatment.
Minneapolis, MinnesotaAges 18 years+ - NCT05100992Recruiting
Bifurcation heart procedure registry for adults
This study is a real-world registry that follows adults who are getting a specific type of heart stent procedure in a forked artery. It helps doctors learn what happens before and after the procedure and improve care.
Minneapolis, MinnesotaAges 18 years+ - NCT05101161Recruiting
Neurofeedback delivered through implanted brain stimulation
This study tests a brain “feedback” approach using electrodes already placed as part of standard medical care. It aims to see whether this method is safe and helpful for people undergoing deep brain stimulation after surgery.
Zurich, Canton of ZurichAges 18 years+ - NCT05102825Recruiting
Lung MRI registry to track breathing health
This study builds a lung imaging registry using MRI pictures to learn how breathing health looks and changes. It may help researchers understand lung problems and how well different people can complete breathing-related MRI scans.
Vancouver, British ColumbiaAges birth–99 years - NCT05102968Recruiting
App-based home rehab after shoulder arthroscopy
This study tests whether using a communication app to help you do home rehabilitation after arthroscopic shoulder surgery improves recovery and function. If you have a small to medium full-thickness rotator cuff tear (or certain subscapularis tears) and can commit to follow-up for two years, you may be eligible.
Kaohsiung CityAges 20–70
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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.