Clinical trials
Functionality clinical trials
Below are recruiting functionality clinical trials, each written for real people, not researchers. We’re tracking 2,474 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05150106Recruiting
Study brain and voice patterns in laryngeal dystonia
This study looks at how the brain and voice system work in people with laryngeal dystonia or voice tremor, and compares them with healthy volunteers. The goal is to better describe different “types” (phenotypes) so future care can be more targeted.
Boston, MassachusettsAges 18–80 - NCT05795179Recruiting
Stress study testing how self-control affects eating choices
This study looks at how stress and self-control can affect what people do with diet and weight. You may be asked to follow specific study procedures and complete tasks while being assessed (including possible scanning).
New York, New YorkAges 18–70 - NCT05790668Recruiting
Motivation tips to reduce frequent rewards for destructive behavior
This trial tests behavior-support strategies that may help gradually reduce how often a child’s destructive behavior gets reinforced. It’s aimed at children with frequent destructive behavior that continues even with past treatment.
New Brunswick, New JerseyAges 3–17 - NCT05796401RecruitingPhase 3
Personalized care program for early psychosis outcomes
This trial tests whether a personalized care plan improves day-to-day functioning for people in the early stages of psychosis. It aims to see if adding structured support after a recent diagnosis can help you function better.
BrestAges 15–30 - NCT05808920Recruiting
Salvage surgery study for recurrent head and neck skin-cell cancer
This study looks at how well people do after “salvage” surgery (planned surgery after prior treatment) for recurrent or residual squamous cell cancer in the head and neck. It may help doctors understand which patients benefit most, including how this surgery affects survival and day-to-day function.
DerbyAges 18 years+ - NCT05790707Recruiting
Ablation for persistent atrial fibrillation to help memory
This study checks whether a procedure called atrial fibrillation ablation can slow memory problems in people who already have mild cognitive impairment. Participants will be tested on thinking and memory before and after treatment to see if the procedure helps.
AngersAges 60–80 - NCT05664412Recruiting
Brain stimulation trial to improve thinking in 22q11.2 deletion
This trial tests a non-invasive brain stimulation approach to help improve executive function—skills like planning, attention, and self-control—in people with 22q11.2 deletion syndrome. If you qualify, you would be asked to participate and allow study procedures to see whether this treatment helps.
Geneva, Canton of GenevaAges 14–25 - NCT05771402RecruitingPhase 2
Combination treatment aimed at clearing hepatitis B long-term
This Phase 2 study tests a combination treatment to help people with chronic hepatitis B stop having detectable hepatitis B surface antigen (called HBsAg). If successful, it may move you closer to a “functional cure,” meaning lower ongoing virus activity over time.
Chongqing, Chongqing MunicipalityAges 18–70 - NCT05769816RecruitingPhase 2
Combination treatment aimed to cure chronic hepatitis B
This Phase 2 study tests a combination therapy to help people with chronic hepatitis B reach a “functional cure,” meaning the hepatitis B surface antigen (HBsAg) is lost for a sustained period. If you qualify, you’ll be closely monitored to see how well the treatment works and whether it’s safe for you.
Chongqing, Chongqing MunicipalityAges 18–70 - NCT05715814RecruitingPhase 3
Test diabetes-pill type medicine on kidney dialysis safety
This Phase 3 trial studies the safety of an SGLT2 inhibitor (a diabetes medication that can affect kidney fluid handling) in people on peritoneal dialysis. The goal is to see how the treatment works in your type of dialysis and whether it causes any problems.
Toronto, OntarioAges 18 years+ - NCT05723679Recruiting
Breathing-targeted program to improve function in HFpEF
This trial studies a breathing-focused treatment to help people with HFpEF (a type of heart failure) feel and function better. It may help improve daily activity by addressing breathing limits that commonly come with this condition.
Dallas, TexasAges 55–90 - NCT05721911Recruiting
Study using brain-cell tests to better understand Parkinson’s risk
This study collects blood and related samples to create a “biobank” and uses lab tests to study genetic risk in Parkinson’s disease and idiopathic REM sleep behavior disorder (RBD). It may help researchers understand why symptoms develop and improve future prevention or treatment approaches.
Milan, ItalyAges 18 years+ - NCT05745298Recruiting
Electrical and breathing therapy to improve unassisted cough after spinal injury
This study tests whether pairing electrical stimulation with breathing muscle training can help you cough without needing assistance. It’s for people recovering from a spinal cord injury within the last year, and who can safely feel and respond to the electrical stimulation.
Miami, FloridaAges 18 years+ - NCT05733091Recruiting
Study of symptoms and function after certain head and neck cancers
This study looks at how symptoms and everyday functioning change for people with cancers of the nose/sinuses, the throat behind the nose (nasopharynx), or nearby skull-base areas. It may help doctors understand what survivors experience and improve long-term care.
Houston, TexasAges 18 years+ - NCT05566483Recruiting
Study long COVID physiology and cardiopulmonary rehab effects
This study looks at how long COVID affects the body and whether cardiopulmonary rehabilitation improves quality of life and physical function. It may help participants better understand their symptoms and see if a structured rehab program improves daily abilities.
Aurora, ColoradoAges 18 years+ - NCT05701852Recruiting
Study brain scans during tasks in chronic nerve pain
This study looks at how brain activity changes in people with long-lasting nerve pain using an MRI scan while you do simple behavioral tasks. It may help researchers understand brain function in chronic neuropathic pain and how it affects day-to-day abilities.
ParisAges 18 years+ - NCT05674617Recruiting
PTSD treatment for Veterans with serious mental illness
This trial tests a PTSD treatment approach for Veterans who also have a serious mental illness, aiming to improve day-to-day functioning. It includes Veterans who receive outpatient mental health care through the VA and have confirmed PTSD in the last month.
Baltimore, MarylandAges 18 years+ - NCT05701982Recruiting
Walking plus Tai Chi coach via video for COPD and pain
This study tests whether a phone/computer program that combines walking training with Tai Chi improves physical function (how well you move) in people who have COPD and long-term body or muscle pain. It may help you build strength, balance, and safer movement—especially if pain makes activity hard.
Boston, MassachusettsAges 40–100 - NCT05684562Recruiting
Lung function and exercise capacity in Fontan patients
This study looks at how well the lungs and heart work together during exercise in people who have had the Fontan operation. The goal is to understand how lung function affects overall fitness, which can help improve care for Fontan patients.
AnkaraAges 8–55 - NCT05674786Recruiting
Implant to help adults with severe balance nerve loss
This study tests whether a vestibular (balance) implant can improve balance and eye-stabilizing reflexes in adults with severe loss of balance function in both inner ears. You may benefit if long-term balance therapy has not helped enough.
Baltimore, MarylandAges 22–90 - NCT05682248Enrolling by invitation
Testing a brain assessment and stimulation system for unconsciousness
This trial studies a device and plan to assess brain function and deliver an intervention in people who are in a coma, minimally conscious state, or unresponsive arousal state after brain injury, stroke, or lack of oxygen. If you qualify, it may help doctors understand and potentially improve brain function over time.
BeijingAges 14–80 - NCT05681936Recruiting
Brain and spine scans after spinal cord injury or related conditions
This study uses brain and spine scans (and possibly nerve stimulation in some cases) to understand how the nervous system changes after spinal cord injury or certain spinal conditions. It may help researchers better track recovery and understand which changes are linked to symptoms like bladder problems.
ZurichAges 18 years+ - NCT05684094Recruiting
Study links sleep, stress, and brain reward in risky drinking
This study looks at how sleep timing and stress affect brain responses related to reward and stress in young adults who drink heavily. It may help researchers understand why some people take bigger alcohol risks and how sleep and stress could be part of safer treatment.
Eugene, OregonAges 18–24 - NCT05702931RecruitingPhase 4
Semaglutide for high blood sugar after kidney transplant
This trial tests semaglutide, a medicine that helps lower blood sugar, in people who develop high blood sugar shortly after a kidney transplant. It may help control blood sugar without harming the transplanted kidney, while also checking safety in this specific group.
CopenhagenAges 18–80
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Common questions
- Are there clinical trials for functionality?
- Yes. Clin2 currently lists 2,474 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.