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
- NCT04607174Recruiting
Test knee muscle activation in people with nerve or movement disorders
This study checks how well your knee muscles “turn on” during guided, controlled knee movements. It may help researchers understand movement problems and improve testing or therapies for neuromotor (nerve/movement) disorders.
Milan, MIAges 18–70 - NCT04612322Recruiting
Study registry for microvascular angina patients
This registry study collects information from adults with microvascular angina (chest pain from small blood vessels in the heart). It may help researchers better understand how to assess and manage this condition over time.
Mainz, RLPAges 18–85 - NCT04613921Recruiting
Liver transplant study for severe worsening liver failure
This study looks at when liver transplant is offered and what outcomes happen in people with cirrhosis who have severe “acute-on-chronic” worsening. It may help doctors decide which patients benefit most from transplant and improve care after listing or not listing.
Los Angeles, CaliforniaAges 18–80 - NCT04615065Recruiting
Biobank study collecting emergency data for very sick patients
This study collects health and sometimes blood sample information from people arriving at the emergency department with high-risk or serious conditions. The goal is to build a large emergency “biobank” to help researchers better understand and improve urgent care.
GroningenAges 18 years+ - NCT04623593Recruiting
Study of cost and value of neck disc surgery
This study looks at how cost-effective (good value for the money) anterior neck disc surgery is for people with nerve or spinal cord symptoms. If you need this type of operation, it may help doctors better choose treatments and plan healthcare resources.
Maastricht, LimburgAges 18 years+ - NCT04625556Recruiting
Urology cancer registry study using body microbiome data
This study builds a patient registry for prostate, kidney, bladder, and ureter cancers by analyzing your body’s microbiome (the microbes living in/ on the body). It may help doctors personalize care in the future, and your participation mainly involves allowing your medical and related information to be used for research.
SeoulAges 20 years+ - NCT04626167RecruitingEarly Phase 1
Testing a bladder transplant done with a kidney transplant
This early-phase study is testing a combined bladder and kidney transplant approach for people whose bladder problems damage the kidneys. The goal is to see if this treatment can improve bladder and kidney outcomes and be done safely.
Rochester, MinnesotaAges 1–60 - NCT04628078Recruiting
Echocardiogram-guided heart procedure registry for atrial fibrillation
This study keeps a real-world record of people with atrial fibrillation who are planning a procedure to close off the heart’s left atrial appendage. Doctors use echocardiography (heart ultrasound) to guide the closure and track outcomes to improve care.
BernAges 18 years+ - NCT04630496Recruiting
Walk Test Before Lung Surgery for Older Adults
This study is looking at a “walk and movement” challenge for older adults preparing for thoracic (chest) surgery. It may help the team understand mobility and support safer care before surgery.
Boston, MassachusettsAges 65 years+ - NCT04630613Recruiting
Studying NOX4 markers in young adults with ADPKD
This study measures a kidney-related marker (NOX4) and other blood/urine signals in people with early-stage ADPKD to better understand disease activity. It may help researchers identify who is likely to progress and why, though it may not be a treatment study.
Rochester, MinnesotaAges 15–40 - NCT04631471RecruitingPhase 3
Ibudilast for spinal cord pressure from neck wear
This Phase 3 study tests ibudilast, a medicine, to see if it can improve symptoms in people whose neck arthritis has started compressing the spinal cord. You would still have your usual surgery to relieve the pressure, and then take the study medicine to see if recovery and function improve.
CambridgeAges 18–80 - NCT04631133Recruiting
Study of outcomes after surgery using the LISA implant
This study follows adults who get back surgery using the LISA implant to see how well they do afterward and how outcomes change over time. It focuses on people whose long-term, non-surgical care did not relieve low-back pain from specific age-related disc changes.
SilkeborgAges 18 years+ - NCT04634383Recruiting
Testing a brain-connected implant to help some blind people see
This early safety study tests an implanted device placed in the brain to help people with very limited sight (no or minimal light). It focuses on whether the implant can be safely used and whether it may support vision-related signals over time.
Chicago, IllinoisAges 19–70 - NCT04635436Recruiting
Split-walking training for one-sided leg weakness when walking hurts
This trial tests whether a “split gait” walking training method can improve walking balance and how you move when you have one-sided leg problems and pain or limitations when walking. It may help reduce walking difficulties by training your stepping pattern safely.
Milan, MIAges 18–70 - NCT04640987RecruitingPhase 1
Stem cell transplant with added T-cells for blood cancers
This Phase 1 study tests a stem cell transplant plan that uses donor T-cells that have been specially processed and then added back. It aims to see if this approach is safer and works better for children and adults with serious blood cancers who need a transplant.
Palo Alto, CaliforniaAges 1 month–45 years - NCT04644211RecruitingPhase 2
Ruxolitinib for symptom control in certain blood cancer types
This Phase 2 study tests ruxolitinib (a targeted medicine) in people with essential thrombocythemia or polycythemia vera who still have troublesome symptoms. It aims to see whether it can reduce symptoms by changing disease activity and blood-related inflammation.
Boston, MassachusettsAges 18 years+ - NCT04657783Recruiting
French cohort study of people with type 1 diabetes
This study follows people with type 1 diabetes in France to better understand the condition over time. It may help researchers improve future care, especially for how type 1 diabetes starts and is managed from early diagnosis onward.
ParisAges 6–100 - NCT04658238Recruiting
Dry eye study of the eye microbiome and immune system
This trial looks at how changes in the eye’s normal germs (microbiome) and the immune response may relate to dry eye. It may help researchers better understand what drives symptoms and how to improve care.
BernAges 18 years+ - NCT04660487Recruiting
How diet carbs affect GVHD after bone marrow transplant
This study looks at whether certain types of gut carbohydrates (called FODMAPs) are linked to graft-versus-host disease (GVHD) after a bone marrow transplant. It may help doctors understand how diet could influence symptoms and outcomes for people with specific blood cancers.
Suzhou, JiangsuAges 18–60 - NCT04662294RecruitingEarly Phase 1
CD70-targeted CAR T therapy for CD70-positive blood cancers
This trial tests a customized immune-cell treatment (CAR T) that targets CD70 on cancer cells in certain blood cancers. It may help people whose disease has returned or did not respond to standard treatments.
Hangzhou, ZhejiangAges Any age - NCT04664179RecruitingPhase 1
EBV immune-cell treatment for EBV-positive lymphoma
This Phase 1 study tests an immune-cell therapy made to recognize EBV (a common virus) in people whose lymphoma contains EBV. It may help control EBV-driven cancers, especially when standard treatment isn’t working or can’t be used.
Houston, TexasAges Any age - NCT04663750RecruitingPhase 3
Surgery to treat bleeding under the retina in wet macular degeneration
This trial tests whether a specific eye surgery plus targeted clot-busting medicine and gas can improve vision after bleeding under the retina from “wet” age-related macular degeneration. It aims to reduce how long the bleeding lasts and help protect the central vision.
BonnAges 50–120 - NCT04664556Recruiting
Study of severe pneumococcal infections in children
This study tracks cases of invasive pneumococcal disease (a serious infection) in children and newborns. It may help clinicians better understand how these infections happen and guide future prevention and treatment.
CréteilAges 1 day–18 years - NCT04664491Recruiting
Program to reduce COPD flare-ups with standardized care
This study tests whether a structured care program for COPD can lower how often your symptoms flare up. It may help by improving everyday management and preventing future worsening.
Beijing, Beijing MunicipalityAges 40 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.