Clinical trials
Effectiveness clinical trials
Below are recruiting effectiveness clinical trials, each written for real people, not researchers. We’re tracking 6,374 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04812314Recruiting
Study how exercise changes body fat and metabolism
This study looks at how starting exercise changes the structure and function of body fat. It may help you understand how exercise affects things like cholesterol and blood sugar, even if you’re not currently exercising regularly.
Ann Arbor, MichiganAges 18–40 - NCT04821778RecruitingPhase 3
Testing chemoradiotherapy for esophageal and stomach junction cancer
This Phase 3 study tests a cancer treatment plan that combines chemotherapy and radiation for people with esophageal or esophagus-stomach junction cancer. It aims to see whether this approach works better than standard care for cancers at stages I to IVA.
Anyang, HenanAges 18 years+ - NCT04805502Recruiting
Pregnancy exercise program to help prevent childhood obesity
This trial studies whether a structured exercise program during pregnancy can help lower the risk of childhood obesity. If you qualify, you may be asked to exercise during early pregnancy and share information with the research team.
Greenville, North CarolinaAges 18–45 - NCT04788628Enrolling by invitation
Sound stimulation study for sleep and memory in epilepsy
This trial studies whether carefully timed sound (“auditory stimulation”) can change sleep patterns and memory in people with epilepsy. It may help researchers understand how to improve thinking and memory by adjusting how the brain sleeps.
Boston, MassachusettsAges 12–65 - NCT04789148RecruitingPhase 1
Nasal oxytocin trial for people with hormone deficiency
This early-phase study tests whether a spray of oxytocin in the nose can be given safely and may affect symptoms in people with arginine-vasopressin deficiency. You might qualify if your hormone levels are stable and you can safely take the nasal study medicine during the study period.
Boston, MassachusettsAges 18 years+ - NCT04824053Recruiting
Dairy products study for people at high risk of colon cancer
This trial studies whether specific dairy products (UNICLA-A2) can help lower the risk of future colon problems in people considered high risk for colorectal cancer. You may be asked to keep using dairy consistently and undergo colon checks as part of usual follow-up.
Zaragoza, ZaragozaAges 18–80 - NCT04821843RecruitingPhase 3
Study before-surgery treatments for esophageal cancer
This Phase 3 trial compares different “treatments before surgery” for people with esophageal (or esophagus-to-stomach) cancer. It aims to see which approach works better to control the cancer and improve outcomes after surgery.
BeijingAges 18 years+ - NCT04798690Recruiting
Long-term growth injections for short children
This trial studies the long-term safety and effectiveness of Growtropin®-II, a growth hormone–type injection, in children who are short due to certain causes. It may help your child’s growth over time, while also closely tracking side effects.
Seoul, Seodaemun-guAges 2 years+ - NCT04848896Recruiting
Safety and outcomes study of a smart knee replacement
This trial studies whether a “smart” knee replacement system (CORI) is safe and works well for people getting a total knee arthroplasty (TKA). If you’re a good candidate for a cemented standard knee replacement, the study follows you for two years to check results after surgery.
EppingAges 18 years+ - NCT00289380Recruiting
Nutrition support study for hospitalized patients at risk
This trial tests how giving extra nutrition support to patients in the hospital affects health outcomes and overall costs. It may help figure out the best nutrition approach for people who are at risk while hospitalized.
Beijing, Beijing MunicipalityAges 18–80 - NCT03593408Recruiting
Study drug levels in children on ECMO
This study measures how sedating and pain medicines move through the body in children who are supported by ECMO (a heart-lung machine). It may help doctors choose safer and more effective dosing for sedation and pain control during ECMO.
Boston, MassachusettsAges birth–17 years - NCT04748809Recruiting
Diet trial for rheumatoid arthritis inflammation
This study tests whether an anti-inflammatory diet can help people with rheumatoid arthritis by lowering inflammation and disease activity. You may join if your symptoms are currently mild to moderate and you haven’t recently changed medications or your treatment plan.
La Jolla, CaliforniaAges 18 years+ - NCT03818178Recruiting
Study of gut-delivered fats and insulin resistance
This study looks at how sending certain fats through the intestine affects “insulin resistance,” a condition where the body doesn’t use insulin as well. If you qualify, you may receive a controlled lipid (fat) delivery as part of measuring body fat handling and related body chemistry.
Rochester, MinnesotaAges 18–55 - NCT04746729Recruiting
Using past radiation records to study heart and lung effects in kids
This study looks back at children’s radiation treatments to understand long-term heart and lung side effects from modern radiotherapy. It may help doctors better plan safer radiation for future patients.
LeuvenAges Up to 22 years - NCT04708808Recruiting
Music therapy during ultrasound-guided abortion procedure
This trial tests whether listening to music during an ultrasound-guided vacuum aspiration procedure can help make the procedure more comfortable or less stressful. It focuses on people having first-trimester pregnancy termination under local anesthesia.
Hong Kong, ShatinAges 18 years+ - NCT04704271RecruitingPhase 1
Study on THC effects in people with past cannabis use
This Phase 1 study looks at how THC (the main mind-altering ingredient in cannabis) affects healthy volunteers shortly after use. It focuses on differences between people and includes those who have used cannabis before.
West Haven, ConnecticutAges 18–55 - NCT04697823Recruiting
Hyaluronan added to IVF fluid to help ongoing pregnancy rates
This study tests whether adding hyaluronan (a substance found naturally in the body) to IVF lab fluid can help more people achieve a pregnancy that is still ongoing after treatment. It is focused on people having a second or third egg retrieval after not becoming pregnant previously.
LeuvenAges 18–40 - NCT04685356Recruiting
Testing IBAIP for brain development in very preterm babies
This study looks at whether the IBAIP program can improve neurodevelopment (how the brain grows and works) in babies born very early. Babies are included only if they have a normal early neurological exam after being “corrected for prematurity.”
AngersAges 6 months–7 months - NCT04693949Recruiting
A study on a new coating for dental bridges
This trial tests a special coating for dental bridges made from a strong white material (zirconia). It may help the bridge bond better to your tooth.
LjubljanaAges Any age - NCT04700527RecruitingPhase 1/Phase 2
Nutritional supplement for reducing side effects from radiation to the belly or pelvis
This trial is studying whether a nutritional supplement (a type of short-chain fatty acid) can help reduce the side effects of radiation therapy for cancers in the abdomen or pelvis. It aims to improve quality of life during treatment.
Chapel Hill, North CarolinaAges 18 years+ - NCT04765137RecruitingPhase 2
Atorvastatin to improve brain blood flow in mild memory decline
This Phase 2 study tests whether the cholesterol medicine atorvastatin can improve how well blood vessels in the brain respond in people with mild cognitive impairment (MCI). It may help brain circulation and possibly slow thinking and memory problems.
Baltimore, MarylandAges 60–95 - NCT04691518Enrolling by invitation
Testing intermittent low-oxygen sessions in healthy adults
This study tests whether breathing lower-oxygen air in short breaks changes how the brain and body respond. It is only for medically stable, healthy adults with specific safety screening.
Chicago, IllinoisAges 18–70 - NCT04701749Recruiting
Stopping blood thinners with a left-atrial device in bleeding risk
This trial studies whether it’s safe to temporarily stop blood-thinning medicine in people with long-term atrial fibrillation who have bleeding from a radiation-damaged bladder. It uses a procedure with a device placed in the left atrium to help lower stroke risk while reducing bleeding risk.
Clermont-FerrandAges 18 years+ - NCT04757922Enrolling by invitation
Tests whether removing fallopian tubes affects menopause timing
This trial studies whether an “opportunistic salpingectomy” (removing fallopian tubes) during sterilization changes when menopause happens. It compares people who have this procedure to those who get different sterilization (tubal ligation) or none.
EindhovenAges 30–45
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Common questions
- Are there clinical trials for effectiveness?
- Yes. Clin2 currently lists 6,374 recruiting effectiveness 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 effectiveness 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 effectiveness 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.