Clinical trials
Functionality clinical trials
Below are recruiting functionality clinical trials, each written for real people, not researchers. We’re tracking 2,577 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07603076Recruiting
Vein Problems and Symptoms in Lipedema
This study looks at how vein function relates to lipedema (a condition causing painful fat buildup in legs). Researchers will use ultrasound to check your veins and ask about your symptoms to better understand how the two conditions connect.
Istanbul, UskudarAges 18–65 - NCT04014413Recruiting
Fecal transplant for gut and immune-related conditions
This trial studies whether fecal microbiota transplantation (FMT)—a medical procedure using stool from a screened donor to restore gut bacteria—can improve safety and outcomes for people with certain bowel, immune, and metabolic conditions. It may help if your symptoms are thought to be related to an unhealthy gut microbiome, though eligibility is broad and depends on specific safety factors.
Hong Kong, ShatinAges Any age - NCT04015609Recruiting
Spanish therapy sessions for Latino people with advanced cancer
This study tests a psychotherapy (talking/support) intervention designed for Latino/Hispanic adults with stage III or IV solid tumor cancer. It uses Spanish-only questionnaires and interviews, and may help by addressing emotional distress during advanced cancer care.
New York, New YorkAges 18 years+ - NCT04019548RecruitingPhase 3
Test swallowing and quality of life during chemo-radiation for throat cancer
This study looks at how well people swallow and how their quality of life changes during standard chemo-radiation for newly diagnosed throat (oropharyngeal) cancer. The goal is to better understand swallowing side effects so care can improve.
BrusselsAges 18 years+ - NCT04022616Recruiting
Study immune cells in breast cancer patients
This study looks at how certain immune cells behave in people with breast cancer. It may help researchers understand the disease and how the immune system affects it.
Columbus, OhioAges 18 years+ - NCT04032990Recruiting
Testing a skin-based nerve stimulation for kids’ arm function
This trial studies whether a painless, skin-based treatment (stimulation over the spine) is safe and feasible to improve arm and hand function in children with a spinal cord injury. It’s mainly designed to see if the approach can be done safely and whether it may help upper-limb skills.
Louisville, KentuckyAges 4–18 - NCT04044963Recruiting
Exercise program before kidney transplant to improve physical strength
This trial tests whether a home exercise program before kidney transplant can improve physical function and strength. If you’re getting a transplant and can safely exercise, you may be able to join the study and help compare outcomes.
Vancouver, British ColumbiaAges 19 years+ - NCT04066465Recruiting
Testing how proton therapy affects thinking in young people
This study looks at how proton radiation therapy may affect thinking, learning, and brain function in children and teens with a primary brain tumor. It uses repeated short brain/learning tests to track possible changes over time.
Dresden, SaxonyAges 8–18 - NCT04070937Recruiting
Imaging findings and balance function in bilateral vestibulopathy
This study compares CT/MRI imaging results (radiological lesions) with balance system function tests in people with bilateral vestibulopathy. The goal is to see whether changes seen on scans match how well your inner-ear/balance nerves are working, which could improve understanding and future treatment decisions.
Hasselt, LimburgAges 18–90 - NCT04095351Recruiting
Study of connective tissue disease affecting the lungs
This study looks at people aged 18 and older who have a connective tissue disease and lung involvement. It aims to better understand how these lung problems progress and may help doctors choose better care.
InnsbruckAges 18–80 - NCT04109820Recruiting
Testing MitoQ for blood clotting activity in sickle cell
This trial studies whether MitoQ changes how your platelets (blood cells that help clot) work and how much “reactive oxygen” your body makes. It includes adults with sickle cell anemia and African American healthy volunteers to compare results.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT04137835Recruiting
Noninvasive motion testing for arm and leg function
This study tests how well your upper and lower body moves using non-invasive methods (no procedures or surgery). It’s likely best for healthy adults who can follow instructions and want to help researchers measure movement and function.
Aurora, ColoradoAges 18–65 - NCT04171323Recruiting
Active mind training to improve thinking and delay dementia
This study tests an “active mind” computer-based program to help improve thinking skills and possibly slow the process toward dementia. You may be randomly assigned to different program options to see which approach works best for your goals.
San Francisco, CaliforniaAges 55–89 - NCT04179981Recruiting
CPAP treatment effects in older COPD and sleep apnea patients
This study looks at whether using positive airway pressure (often called CPAP) improves health outcomes in older adults who have both COPD and obstructive sleep apnea. It may help find ways to reduce symptoms and complications from “overlap” breathing problems.
Detroit, MichiganAges 60 years+ - NCT04182087Recruiting
Testing thinking skills after a localized brain injury
This trial studies how your thinking and memory abilities work after a single, localized brain injury seen on MRI. It involves cognitive (thinking) tasks to assess changes and may help researchers understand brain function after injury.
GrenobleAges 18–70 - NCT04196244RecruitingPhase 4
IV-contrast CT vs no-contrast CT for urgent abdominal pain
This study compares two types of CT scans—using IV contrast dye versus not using dye—in people who need an emergency abdominal scan but have reduced kidney function. It aims to see which approach is safer and works well enough to help doctors find the cause.
EspooAges 18 years+ - NCT04198909Recruiting
Testing a new way to measure hearing nerve health
This study uses a painless, non-invasive method to test how well the hearing nerve works in people with normal hearing. It may help doctors better understand hearing loss in the future.
Clermont-FerrandAges 18–55 - NCT04201600Recruiting
Study how blood sugar swings affect thinking in prediabetes
This study looks at how “blood sugar variability” (how much glucose levels bounce around) may affect thinking and memory in people with prediabetes. You may be eligible if you’re older and don’t already have diabetes or conditions that can strongly affect the brain or blood vessels.
Baltimore, MarylandAges 50 years+ - NCT04219709Recruiting
Study how ketosis affects brain function in adults with type 1 diabetes
This study tests whether a “ketosis” state changes brain function in adults with type 1 diabetes. You may be asked to follow specific diet/food delivery plans and use devices that track glucose, which could help researchers understand how metabolism affects the brain.
Boston, MassachusettsAges 18–40 - NCT04229056Recruiting
Computer training to improve thinking and planning after stroke or Parkinson’s
This trial tests computer-based “self-training” to improve executive function, such as working memory—your ability to hold and use information in mind. It’s for adults with a prior stroke, cardiac arrest, or Parkinson’s disease who have trouble on a specific working-memory task.
CopenhagenAges 18–100 - NCT04232085RecruitingPhase 2
Stem cell transplant to rebuild immunity in genetic immune disorders
This Phase 2 trial tests a stem cell (bone marrow) transplant approach to restore bone marrow function and immune function in people with certain inherited immune problems. If you have one of these conditions and a suitable donor, the study may offer a path to rebuild blood and immune systems.
Baltimore, MarylandAges 4 months–50 years - NCT04289571RecruitingPhase 1
Virtual reality vision testing for people with retinal disease
This early-stage study uses virtual reality tasks to check how well a person can move and function using their eyesight. It may help researchers measure vision abilities in a way that could guide future care for retinal disease.
Bethesda, MarylandAges 5–120 - NCT04296604Recruiting
tDCS brain stimulation to improve thinking and mood
This study tests whether a non-surgical brain stimulation called tDCS can improve “executive function,” which means skills like planning, focus, and decision-making. It is designed for people with several mental health and substance-use conditions, and it may help you if those skills are affected by your diagnosis.
Boston, MassachusettsAges 18–65 - NCT04297020Recruiting
Checking brain health in breast cancer survivors
This study looks at differences in brain function in people who have had breast cancer, compared with certain people without that history. It’s testing how brain health changes after breast cancer and relates to mood, thinking, and daily functioning.
Los Angeles, CaliforniaAges 35–65
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Common questions
- Are there clinical trials for functionality?
- Yes. Clin2 currently lists 2,577 recruiting functionality 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 functionality 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 functionality 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.