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 10,548 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04688190Recruiting
Registry study for choosing a mitral valve treatment
This study collects and compares real-world results to help doctors choose the best treatment for mitral valve “leakiness.” If you have clinically significant mitral insufficiency and have already had a specific heart procedure screening, your echocardiogram results may be used to understand outcomes over at least a month.
Tucson, ArizonaAges 18 years+ - NCT04742634RecruitingPhase 1/Phase 2
Preemptive drug DEC-C after transplant to reduce hidden cancer
This trial tests whether giving DEC-C (a decitabine-based treatment) soon after an allogeneic transplant can improve outcomes for MDS patients who still have “measurable residual disease” (hidden leftover disease) detectable by a genetic test. It also compares this approach to standard observation if the hidden disease is not detected or if the higher-risk safety checks are not met.
St Louis, MissouriAges 18–75 - NCT04715191RecruitingPhase 1
CAR T therapy for GPC3-positive pediatric solid tumors
This Phase 1 study tests a customized immune-cell treatment (CAR T cells) made to recognize GPC3, a marker found on some tumors. It’s designed for children and young people whose solid tumors have not been cured by standard treatment and who can safely receive this therapy.
Houston, TexasAges 1–21 - NCT04739072Recruiting
Check colorectal cancer blood tests after curative treatment
This study measures “minimal residual disease,” meaning tiny amounts of cancer that may remain after surgery, using blood samples. It may help doctors better detect who is at higher risk of cancer coming back and guide follow-up care.
Gilbert, ArizonaAges 18 years+ - NCT04737200Recruiting
Overnight feeding to improve sleep in ICU heart surgery patients
This trial studies whether planned overnight nutrition (through a feeding tube) can reduce sleep problems and daily body-clock disruption while you’re in the ICU after certain heart surgery. It may help you get more restful sleep and better regular “wake–sleep” timing during recovery.
Boston, MassachusettsAges 18 years+ - NCT04746820Recruiting
Brain monitoring in unconscious ICU patients after cardiac arrest
This trial tests a bedside brain-monitoring method (near-infrared light and EEG) in people who are unconscious after severe brain injury from cardiac arrest. The goal is to see whether it can help measure brain function during the first week after admission.
Zurich, Canton of ZurichAges 18 years+ - NCT04738422Enrolling by invitationPhase 2
Measuring airway acidity using exhaled air breath tests
This trial studies how “airway pH” (how acidic your breathing tubes are) changes after you drink or inhale an alkaline buffer, using special breath measurements. It may help researchers better understand and measure airway inflammation in people with lung conditions or in healthy non-smokers.
Indianapolis, IndianaAges 18–60 - NCT04721652Recruiting
Track drinking and recovery after hemodialysis sessions
This study looks at how fluid intake after each hemodialysis treatment affects your health. It may help find safer, easier guidance on how much to drink between treatments.
London, OntarioAges 18 years+ - NCT04745221Recruiting
Fecal microbes therapy to help prevent graft-versus-host disease
This trial studies a treatment made from donor gut microbes to help prevent a common complication after a transplant called acute graft-versus-host disease (aGVHD). It may help by improving the balance and variety of gut bacteria during recovery after haploidentical transplant.
Suzhou, JiangsuAges 18–60 - NCT04687215Recruiting
Spinal cord stimulation for painful diabetic nerve pain
This trial studies whether a spinal cord stimulator can reduce pain from diabetic nerve damage in the legs. It focuses on people with long-lasting type 2 diabetes and significant, treatment-resistant pain.
Chicago, IllinoisAges 18 years+ - NCT04734756Enrolling by invitation
Dragonfly device study for leaking mitral valve in high-risk patients
This trial tests the safety and effectiveness of a heart procedure that repairs a leaking mitral valve through thin tubes, using the Dragonfly system. It’s for people who have significant mitral valve leak symptoms but are considered high risk for open-heart surgery.
Hangzhou, ZhejiangAges 18 years+ - NCT04754217Recruiting
Follow-up study after valve graft replacement
This study looks at outcomes after certain heart valve surgeries using a valved graft. It may help doctors understand how well these grafts work over time in people who have had valve replacement surgery.
Birmingham, AlabamaAges 18 years+ - NCT04761120Recruiting
Follow-up study for specific heart valve repair ring implants
This study follows people who are going to get certain types of heart valve repair rings or bands. It aims to track safety and outcomes after the Abbott device is implanted in routine care over follow-up visits.
Durham, North CarolinaAges 18 years+ - NCT04689854Enrolling by invitation
Cervical spine surgery implant study for neck disc problems
This trial studies specific neck (cervical) spine implants used during surgery for degenerative disc disease or neck instability, along with a particular kind of bone grafting and supporting hardware. It may help patients by testing whether these devices and the planned fusion approach work safely and effectively in real-world surgery.
Orange, CaliforniaAges 18 years+ - NCT04604782RecruitingPhase 1/Phase 2
Regadenoson study in children to test safety and dosing
This trial tests how safe regadenoson is in children and how the body handles it after dosing. It also uses a heart “stress test” with MRI (CMR) when doctors feel it’s needed.
ParisAges 4 weeks–18 years - NCT04679844Recruiting
Test bone putty for back fusion versus bone graft alternatives
This study compares a ready-to-use bone putty to standard bone graft materials (with or without your own bone) during back fusion surgery for unstable lower back problems. It looks at whether the putty works as well or better to help the bones fuse and heal.
Irvine, CaliforniaAges 18 years+ - 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 - NCT04604522Recruiting
Study airway brushing in people with bronchiolitis obliterans
This study collects tiny airway samples during a planned bronchoscopy to better understand bronchiolitis obliterans (a long-term lung complication after transplant). Your samples may help researchers learn how the disease starts and changes over time.
Houston, TexasAges Any age - NCT04676100Enrolling by invitation
International registry for cardiac rehabilitation programs
This study collects information about cardiac rehabilitation (CR) programs in lower-resource areas. It helps improve how CR is delivered and understood, especially where healthcare resources and awareness are limited.
DohaAges 18 years+ - NCT04641039Recruiting
Study of scar differences after lumbar disc replacement
This study compares how postoperative scars look and behave after certain lumbar disc replacement surgery. It may help doctors choose approaches that reduce excessive scar-related problems after surgery.
Valencia, ValenciaAges 18–50 - NCT04664634RecruitingPhase 3
Digital treatment for drooling and swallowing in Parkinson’s
This trial tests a smartphone/tablet digital program meant to help with drooling (sialorrhea) and swallowing problems in people with Parkinson’s disease. If you’re eligible, you’ll use the platform during clinic study visits to see whether it can improve symptoms and safety.
Evanston, IllinoisAges 22 years+ - NCT04681781Enrolling by invitation
Remote study of SLC13A5 deficiency history
This study follows people with SLC13A5 deficiency to better understand how the condition changes over time, using surveys and clinical check-ins done remotely. If you (or your child) have this genetic condition, it may help researchers learn what symptoms to expect and how to track them.
Palo Alto, CaliforniaAges Any age - 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 - NCT04680130Enrolling by invitation
Study of brain, genetics, and clinical symptoms in neurodegenerative illness
This study looks at how your symptoms, brain imaging (MRI), and genetic factors relate to neurodegenerative conditions. It may help researchers better understand what causes these illnesses and how to classify them.
Rochester, MinnesotaAges 21 years+
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Common questions
- Are there clinical trials for general population (no specific condition or disease)?
- Yes. Clin2 currently lists 10,548 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.