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
- NCT04312399Recruiting
Hormone treatment study for Alzheimer risk in postmenopausal women
This study looks at whether hormone treatment can help prevent or slow Alzheimer’s disease in women who have gone through menopause. It may help by testing a hormone-based approach in a carefully selected group.
GhentAges 40–65 - NCT04318119Recruiting
Brain scan registry for small blood vessel disease
This study is a registry that collects information and brain scan findings from adults with possible small vessel disease. It may help doctors better understand how this condition looks on scans and what it is linked to.
Fuzhou, FujianAges 18–100 - NCT04320199Recruiting
Fermented beetle powder for alcohol-related liver problems
This trial tests whether a fermented powder made from a specific beetle can improve or protect the liver after alcohol-related liver injury. It’s looking for people with certain liver blood test levels, and it excludes several conditions and recent herbal or liver-affecting treatments.
Pusan, Ami-dongAges 19 years+ - NCT04330846Recruiting
Study of new narrowing in Crohn’s treated with two approaches
This study looks at treatments for a new (de novo) narrow area in the bowel from Crohn’s disease. It aims to see which treatment works better at relieving blockage-type symptoms for the safest, most effective option.
Badalona, BarcelonaAges 18–80 - NCT04335994Recruiting
Home sleep testing for people with memory trouble
This study looks at how well home sleep apnea testing works for people with cognitive impairment (memory/thinking problems) to help improve outcomes. You may be asked to do a home sleep test (and possibly an in-lab test) and will involve a caregiver if needed.
Toronto, OntarioAges Any age - NCT04334031Recruiting
Hospital follow-up study for immune-related disease
This is a study that follows people with an immune-related illness at Lille University Hospital to better understand their care needs over time. By collecting information regularly, the study may help improve how future patients are monitored and treated.
LilleAges 18 years+ - NCT04334707Recruiting
Study kidney damage in people with long-term diabetes
This study is looking at different kidney health patterns in people with diabetes, especially diabetic kidney disease and people who have not developed kidney damage despite long-term diabetes. It may help researchers understand why kidney problems happen—and what protective factors might prevent them.
Tucson, ArizonaAges 18 years+ - NCT04337515Recruiting
Study of a new method to prepare stem cell transplants
This feasibility study tests a technique called CLINIMACS to reduce certain immune cells (alpha/beta T-cells) before a stem cell transplant. It may help make the transplant safer and better controlled, but this is an early-stage feasibility test.
San Francisco, CaliforniaAges Up to 30 years - NCT04340817Recruiting
Study of fatty liver in Nordic countries
This study looks at people with non-alcoholic fatty liver disease (fat buildup in the liver without heavy alcohol use). It may also include healthy volunteers for comparison, helping researchers understand the condition better.
Hvidovre, Capital Region DenmarkAges 18 years+ - NCT04339270RecruitingPhase 4
Testing azithromycin in chronic lung disease with frequent flare-ups
This Phase 4 study tests whether a long course of azithromycin can reduce flare-ups in people with chronic obstructive pulmonary disease (COPD) who have had recent exacerbations. It also looks at mucus properties and how flare-ups happen.
BordeauxAges 40–85 - NCT04344769Recruiting
Studying how a kidney-protecting pathway works in ADPKD
This study looks at how the body’s “Nrf2 response” works in people with autosomal dominant polycystic kidney disease (ADPKD). It may help researchers better understand disease biology and future treatments by comparing kidney-related signals in ADPKD patients and healthy volunteers.
Rochester, MinnesotaAges 18–30 - NCT04372108Recruiting
Long-term safety study for ustekinumab vs other biologics
This study follows adults with Crohn’s disease or ulcerative colitis to compare the long-term safety of ustekinumab against other biologic medicines. It may help show how safe these treatments are over time, using medical records.
Portsmouth, VirginiaAges 18 years+ - NCT04371042Recruiting
Study of liver disease and genes in people with fatty liver
This study collects information about metabolic and unexplained (cryptogenic) liver disease and looks at “omics” tests, which are lab tests that measure patterns in blood or tissue to learn what drives the disease. It may help researchers better understand fatty liver and related serious complications, like liver scarring and liver cancer.
Roma, Rome/lazio/italyAges 18 years+ - NCT04375280Recruiting
Study of mobility problems in people with long-term illnesses
This study observes how people with chronic health conditions affect their ability to move and do everyday activities. It may help researchers better understand mobility limits and what factors influence them.
Clermont-FerrandAges 18–90 - NCT04380740RecruitingPhase 2
Longer vs shorter abatacept doses to prevent graft-versus-host disease
This trial tests whether giving abatacept for a longer or shorter time can better prevent graft-versus-host disease (a common complication after a stem cell transplant). If you’re having a planned unrelated donor transplant, the results may help reduce the risk or severity of transplant-related immune problems.
Duarte, CaliforniaAges 2 years+ - NCT04388969Recruiting
Ambroxol study for Gaucher disease and Parkinson symptoms
This trial looks at ambroxol, a medicine, for people who have Gaucher disease and Parkinson disease that is linked to Gaucher. If you fit the condition group, the study may help doctors learn whether ambroxol can improve Parkinson-related symptoms in this specific situation.
Jerusalem, Please Select...Ages Up to 100 years - NCT04393701Recruiting
Testing newborn blood spots to check for rare storage diseases
This pilot study tries a systematic way to look for several rare “lysosomal storage” diseases in newborns using a specialized lab test on routine blood samples. It may help detect these conditions earlier so treatment can start sooner if needed.
CaenAges 1 day–4 days - NCT04399941Recruiting
Ultrasound inside the blood vessel for dialysis access issues
This trial tests a special type of ultrasound placed inside a blood vessel to better understand problems with dialysis access. It may help doctors find the cause of access malfunction during your diagnostic fistulogram.
Boston, MassachusettsAges 18–85 - NCT04400604Recruiting
Study of liver disease risk from heavy alcohol use
This study looks at people with heavy alcohol use who may have alcohol-related liver damage. It aims to better understand liver disease risk and how it changes over time, using blood tests, some scans, and possibly stored tissue.
LilleAges 18–75 - NCT04404114Recruiting
Shear wave ultrasound to tell acute from chronic kidney disease
This study checks whether a special ultrasound can help tell whether kidney problems started suddenly (acute) or have been present longer (chronic). It may help doctors choose the right next steps faster in the emergency room.
TaipeiAges 20 years+ - NCT04407780Recruiting
Cardio-oncology patient registry
This is a registry (a research database) for people who are being followed in cardio-oncology, which means care for heart problems related to cancer or cancer treatments. It may help doctors better understand these conditions and improve future care.
ParisAges 18 years+ - NCT04416178Recruiting
Survey and interviews for families affected by sickle cell disease
This study collects feedback through surveys, interviews, and focus groups from people affected by sickle cell disease. Your input helps the research team improve how genomic and gene-therapy information and needs are understood for patients and caregivers.
Memphis, TennesseeAges 13 years+ - NCT04417387Recruiting
Check genetics to improve heart disease risk prediction
This study looks at whether adding genetic information to a standard NHS Health Check can better predict a person’s risk of coronary artery disease (CAD). If you qualify, you may be asked to provide genetic information to help refine future risk estimates.
LeicesterAges 40–74 - NCT04427826RecruitingPhase 1/Phase 2
Morphine to prevent early NIV failure in COPD flare-ups
This trial studies whether morphine can help people with a COPD flare-up avoid “non-invasive ventilation” (breathing support through a mask) failing early. The goal is to reduce how often people need escalation of care soon after starting NIV.
Grenoble, Isère, Auvergne-Rhône-AlpesAges 18 years+
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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.