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 10,802 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04616508Recruiting
Online arm movement training for people with Parkinson’s
This study uses online tasks to look at how people with Parkinson’s control reaching movements. You may benefit by contributing to research that could improve understanding and future treatments for movement problems.
Newark, DelawareAges 18–85 - NCT04617184Recruiting
Join an inflammatory bowel disease registry and sample bank
This study asks people with known or suspected inflammatory bowel disease to enroll in a registry and biorepository. It helps researchers better understand the condition using health information and stored biological samples.
Austin, TexasAges 18–100 - NCT04622410Recruiting
Hirschsprung disease patient registry study
This study keeps a research record of people who have Hirschsprung disease and have had surgery. It helps doctors better understand long-term outcomes and care needs for future patients.
LeuvenAges Up to 18 years - NCT04634240Recruiting
Staged heart bypass plus TAVR versus TAVR alone
This study compares doing a staged coronary bypass (revascularization) along with a valve procedure (TAVR) versus doing TAVR and medical treatment alone. It aims to see which approach better helps people with both aortic valve narrowing and coronary artery disease.
Huntsville, AlabamaAges Any age - NCT04634916Recruiting
Check how a dialysis fistula device performs in real life
This study monitors how well the BD WavelinQ endoAVF device works after routine clinical use. It may help people who need a dialysis access fistula by sharing real-world safety and performance data.
La Jolla, CaliforniaAges 18 years+ - NCT04637438Recruiting
Fecal transplant for Crohn’s around the small and large bowel
This trial studies fecal microbiota transplantation (a transplant of beneficial gut bacteria from a donor) to help people with Crohn’s disease that is causing narrowing (strictures) and/or abnormal tunnels (fistulas) and who need bowel surgery. You may qualify if you’re an adult, planning ileal/ileocecal surgery, and can complete the colonoscopy while not on certain gut-altering medicines.
TampereAges 18–120 - NCT04639336Recruiting
Pompe disease study of brain and nerve effects
This study looks at how Pompe disease affects the brain and nervous system. You may be able to join if you have a confirmed diagnosis of infantile or late-onset Pompe disease and agree to participate.
Durham, North CarolinaAges birth–18 years - NCT04643327RecruitingPhase 2
Levetiracetam study to lower dementia risk in Parkinson’s
This Phase 2 study tests whether an added medication strategy can change brain targets linked to memory decline in people with Parkinson’s disease, including those with no memory problems or mild memory changes. It may help lower risk of developing dementia, but you must be able to safely do MRI scans and meet other health and medication rules.
Brisbane, QueenslandAges Any age - NCT04650932Recruiting
Study tests new stimulation settings for advanced Parkinson’s
This study looks at whether changing how deep brain stimulation (DBS) pulses are delivered can improve symptoms in people with advanced Parkinson’s disease. You may be eligible if you already have a specific Boston Scientific DBS device and have had it implanted for at least 3 months.
Sacramento, CaliforniaAges 18 years+ - NCT04654000Recruiting
Rheopheresis to treat painful skin damage in calciphylaxis
This trial studies whether a treatment called rheopheresis, added to standard care, can help people with calciphylaxis whose skin wounds are getting worse. It may be considered when ulcers or dead (necrotic) skin appear despite conventional treatment.
AngersAges 18 years+ - NCT04656184RecruitingPhase 3
Anakinra vs IVIG for kids who don’t respond to first IVIG
This study compares two treatments—anakinra and IVIG—for children with Kawasaki disease who still have fever after their first standard IVIG treatment. It aims to find which option works better and is safer for “IVIG non-responders” who may be at risk for heart complications.
Le Kremlin-Bicêtre, Val De MarneAges 3 months–17 years - NCT04657822RecruitingPhase 4
Crizanlizumab rollover study for people with sickle cell disease
This study lets people with sickle cell disease who already finished a Novartis crizanlizumab trial continue treatment under a rollover plan. It’s designed for participants who benefited from crizanlizumab and completed the earlier study schedule without major ongoing side effects.
Birmingham, AlabamaAges 6 months–100 years - NCT04661280RecruitingPhase 3
Donepezil compared with non-drug care for Alzheimer’s
This trial compares donepezil (a medicine for Alzheimer’s symptoms) against a non-drug treatment plan. It aims to see which approach helps people with Alzheimer’s who still have measurable thinking ability and specific Alzheimer’s test results.
ParisAges 50 years+ - NCT04674449Recruiting
Tests a targeted plan for people with chest pain from heart artery disease
This study aims to match people with angina (chest pain from heart artery problems) to the most helpful treatment plan based on their test results. It’s done around the time doctors are planning an invasive heart scan to look at the coronary arteries.
CorkAges 18 years+ - NCT04673643RecruitingPhase 2
Nerve stimulation for dry eye symptoms
This Phase 2 study tests a device that delivers gentle stimulation to a nerve near the ear to help improve dry eye disease. It may help reduce dryness and discomfort, if you meet the study’s health and safety requirements.
BeijingAges 18–65 - NCT04698291Recruiting
Study how genetic differences affect calming immune signals
This study looks at how genetic changes may affect special “calming” immune molecules that help the body resolve inflammation. You may be invited if you already joined the Genes & Health project and had your genome analyzed, and you meet safety and health criteria.
LondonAges 18 years+ - NCT04698421Recruiting
Blood and tissue sample collection for rare autoimmune nerve diseases
This study collects biological samples (like blood or other specimens) from people with rare neurological conditions that may involve the immune system. Your samples may help researchers better understand these diseases.
ToulouseAges 6–99 - NCT04697966Recruiting
Smartphone mindfulness program for teens and what predicts improvement
This study tests an app-based mindfulness training program for adolescents ages 13–18 and looks at what helps predict which teens improve. It may be helpful if you’re looking for a structured mindfulness practice and want to understand what changes in your thinking and feelings over time.
Belmont, MassachusettsAges 13–18 - NCT04701853Recruiting
Exercise training after permanent stoma surgery
This trial looks at a specific exercise program after planned surgery to create a permanent stoma (an opening for stool). The goal is to see whether the training helps people recover and function better after surgery.
GothenburgAges Any age - NCT04706910RecruitingPhase 3
PET scan study to optimize imaging in several diseases
This trial improves a special PET scan (a type of brain/body imaging) using 18F-DOPA, to better show how certain conditions behave in the body. If you or your child may have one of the listed conditions, the study may help your doctors get clearer scan results.
Edmonton, AlbertaAges Any age - NCT04707781Recruiting
Database study for people at risk of lung scarring
This trial is a study database that collects information from adults who have other illnesses that can increase the risk of developing interstitial lung disease (lung scarring). It may help researchers better understand who is at risk and how outcomes change over time.
GrazAges 18 years+ - NCT04710576RecruitingPhase 2
Axatilimab for chronic graft-versus-host disease
This trial tests a new drug called axatilimab to help patients whose chronic graft-versus-host disease (a condition where transplanted immune cells attack the body) isn't responding well to standard treatments. Researchers want to find the right dose and see if it can improve symptoms and quality of life.
Birmingham, AlabamaAges 2 years+ - NCT04708587Recruiting
Choosing the right anti-platelet duration for advanced kidney disease
This study looks at the best length of anti-platelet medicine (which helps prevent stent clots) after a new type of heart stent. It specifically focuses on people with advanced chronic kidney disease, where bleeding and clot risks can be higher.
SeoulAges 19–84 - NCT04709900Recruiting
Tests for stable chest pain using heart scans and pressure measurements
This trial studies how well different heart tests (imaging the blood flow and measuring blood pressure in the heart) work for people with stable chest pain. It may help guide safer, more accurate evaluation when you are not having a heart attack.
CopenhagenAges Any age
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Common questions
- Are there clinical trials for general population (no specific condition or disease)?
- Yes. Clin2 currently lists 10,802 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.