Clinical trials
Functionality clinical trials
Below are recruiting functionality clinical trials, each written for real people, not researchers. We’re tracking 2,570 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07315334Recruiting
Understanding nerve damage from chemotherapy
This study looks at how chemotherapy-related nerve damage affects daily activities like walking and standing. It includes people who currently have or have had nerve-damaging chemotherapy and are experiencing nerve pain or weakness.
SalzburgAges 18 years+ - NCT07215884RecruitingPhase 1
Dopamine and movement in people who stutter
This study looks at how dopamine affects speech and movement in adults who stutter. It may help us understand why stuttering happens.
San Francisco, CaliforniaAges 18–65 - NCT07604714Recruiting
Shoulder Replacement Surgery: Testing a Bone-Removal Technique
This trial compares two surgical approaches for reverse total shoulder replacement—a procedure that replaces a damaged shoulder joint. Researchers are testing whether removing part of a shoulder bone (the coracoid) helps improve your arm's ability to rotate inward after surgery.
AnnecyAges 18 years+ - NCT07770126Recruiting
Stomach bacteria study for gastric conditions and precancer
This study looks for certain stomach bacteria (other than the common H. pylori) that might be linked to stomach diseases or early signs of cancer. If you have a stomach condition, your participation could help doctors understand these bacteria better.
EdegemAges 18 years+ - NCT07770347Enrolling by invitation
Sepsis and the immune system study
This study looks at how the immune system works in people who are critically ill with sepsis. By understanding these changes, doctors hope to find better ways to treat this serious condition.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07769151Recruiting
BIO-FUNCTION to predict risks after stem cell transplant
This study looks at a new tool called BIO-FUNCTION to help predict the risk of serious complications or death after a stem cell transplant or cellular therapy. The goal is to better understand who might be at higher risk, so doctors can provide more personalized care.
Detroit, MichiganAges 18 years+ - NCT07149870Recruiting
Pain management team for veterans with chronic pain
This study is testing whether a team-based pain management approach helps veterans with chronic pain and long-term opioid use. It aims to improve function and safety by addressing opioid concerns.
Birmingham, AlabamaAges 18 years+ - NCT06454903Recruiting
Smartphone app support for veterans treating opioid use disorder
This study tests a smartphone app to support Veterans in their recovery from opioid use disorder. The app aims to improve daily functioning alongside medication treatment.
West Haven, ConnecticutAges 18 years+ - NCT07768423Recruiting
Omega-3 supplements and red blood cell health in soccer players
This study looks at how taking omega-3 supplements (from fish oil) affects the red blood cells of soccer players. It might help improve their overall health and performance.
Katowice, Mikolowska 72aAges 16–35 - NCT07044466Recruiting
Social functioning study for people in treatment for opioid use
This study looks at how people recovering from opioid use disorder get along with a close friend or family member (called a CSO). It may help improve social support during early treatment.
Charleston, South CarolinaAges 18 years+ - NCT07412223RecruitingPhase 4
Tegileridine for bowel recovery after abdominal surgery
This trial tests a painkiller called Tegileridine to see if it helps your bowels work normally again after abdominal surgery.
Guangzhou, GuangdongAges 18 years+ - NCT07137624Recruiting
Can thinking about walking help MS patients?
This study tests whether imagining or watching walking movements can improve walking ability in people with multiple sclerosis. It focuses on low-risk, non-invasive mental exercises that may help retrain the brain and muscles.
AnkaraAges 18 years+ - NCT07261293Recruiting
Blood flow restriction exercise for COPD patients
This study tests whether adding mild blood flow restriction to aerobic exercise can improve lung function, exercise capacity, and inflammation in people with stable COPD. You would exercise on a bike or treadmill while wearing soft cuffs on your legs to lightly restrict blood flow.
IstanbulAges 40–80 - NCT07765173Recruiting
Muscle function after ACL reconstruction in active people
This study looks at how well your thigh muscles work after ACL reconstruction surgery. It aims to understand muscle power recovery in active people, which could help improve rehabilitation programs.
Challes-les-EauxAges 18–65 - NCT06672952Recruiting
Citrus compound for exercise, blood flow, and stress in overweight adults
This study looks at whether a natural citrus compound called glucosyl-hesperidin (CitraPeak) can boost your exercise performance, improve blood flow, reduce stress, and sharpen thinking. Researchers want to see if it works differently for people who are moderately overweight or mildly obese.
Saint Charles, MissouriAges 18–50 - NCT05825092RecruitingPhase 2
Early testosterone gel for people on breathing machines
This Phase 2 study tests whether starting testosterone gel soon after ICU admission can improve physical performance in critically ill adults who need a breathing machine for more than 48 hours. It’s also designed to check safety in this setting.
BordeauxAges 18–79 - NCT07764679RecruitingPhase 3
Brain scan to detect Alzheimer's plaques
This study tests a new PET brain scan that uses a special dye to show amyloid plaques, which are linked to Alzheimer's disease. It may help doctors see if your memory problems are caused by Alzheimer's or something else.
Beijing, Beijing MunicipalityAges 40 years+ - NCT07574502Recruiting
Electrical Stimulation to Help Bowel Recovery After Colon Surgery
This study tests whether gentle electrical stimulation applied to the skin can help older adults recover bowel function faster after minimally invasive colon cancer surgery. The goal is to reduce the time it takes for the bowel to start working normally again after surgery.
Binzhou, ShandongAges 65 years+ - NCT05502653Recruiting
Study inflammation, lung function, and fungal movement in HIV
This study looks at how body inflammation and lung health relate to the movement of fungi in the body of people living with HIV. The goal is to better understand what factors may affect lung problems and fungal “translocation,” which may help future care.
Pittsburgh, PennsylvaniaAges 18–80 - NCT07098572Recruiting
Comparing two types of electrical stimulation for arm recovery after stroke
This study tests whether a four-channel electrical stimulation device works better than a standard one-channel device for improving arm and hand movement in people who recently had a stroke. The goal is to help with recovery of daily activities.
Hermagor, CarinthiaAges 18–99 - NCT06717711RecruitingPhase 3
Shockwave therapy for penis recovery after prostate cancer surgery
This trial tests if low-intensity shockwaves can help men regain erectile function after robot-assisted prostate surgery. If you had nerve-sparing surgery and have good erections before treatment, this may help you recover faster.
Rome, RMAges 18–75 - NCT07761780Recruiting
Comparing two surgical approaches for tibia fracture repair
This study compares two ways surgeons reach the tibia bone during a procedure to fix a broken shinbone (tibia) with a metal rod. It aims to find which method leads to better recovery of leg function.
Lahore, Punjab ProvinceAges 18–60 - NCT03713125Enrolling by invitation
Study of thinking skills in young children
This study looks at how children in kindergarten think and learn (often called “executive function”). They may be testing whether certain patterns in thinking and behavior relate to learning or development, and what can be measured in young children.
Nashville, TennesseeAges 4–9 - NCT07349797Recruiting
Transdermal GFR system to check kidney function in heart failure
This trial tests a sensor placed on the skin to measure kidney function in adults with heart failure. It may help understand how well the kidneys are working without repeated blood draws.
New York, New YorkAges 18 years+
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Common questions
- Are there clinical trials for functionality?
- Yes. Clin2 currently lists 2,570 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.