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
- NCT07585474Enrolling by invitation
Gut Health During Long Travel for Football Players
This study looks at how long airplane trips affect the gut bacteria in professional male football players. Researchers will track changes in your digestive system during pre-season travel to understand if travel impacts your gut health.
Nashville, TennesseeAges 18–40 - NCT06907758Recruiting
How organ donor care before surgery affects kidney transplant success
This study looks at whether special care given to brain-dead organ donors before their kidneys are removed helps the kidneys work better after they are transplanted into recipients. It reviews data from transplants done at Strasbourg University Hospital between 2018 and 2023.
StrasbourgAges 18 years+ - NCT06724393Enrolling by invitation
Blood Flow Restriction Exercise for Older Adults
This study tests whether low-intensity exercise with blood flow restriction (using special cuffs on your arms or legs) can improve strength and daily function in older adults. You join online classes from home and go to the campus three times for check-ups.
Montreal, QuebecAges 60 years+ - NCT05856136RecruitingPhase 4
Study how opioid exposure affects diaphragm muscle function
This study looks at whether receiving opioids for pain during lower-leg surgery changes how well the diaphragm muscle (the main breathing muscle) works afterward. It compares breathing muscle function in people who do and do not have certain lung conditions.
Rochester, MinnesotaAges 18 years+ - NCT06901141Enrolling by invitation
Kinesio Tape for Balance, Ankle, and Jumping
This study tests whether different types of kinesio tape (a flexible tape placed on the skin) can improve balance, ankle function, and jumping ability in healthy young adults. It may help you if you are a physiotherapy student looking to understand how taping affects movement.
Istanbul, BüyükçekmeceAges 18–25 - NCT06900257Enrolling by invitation
Fetal heart function in fasting pregnant women
This study looks at how babies' hearts work when mothers have been fasting for at least 10 days. It may help understand if fasting affects the baby's heart health.
SanliurfaAges 18–50 - NCT06900452Recruiting
Pistachio breakfast and brain function in older adults
This study tests whether eating a pistachio-rich breakfast can improve memory and thinking in healthy older adults. If you qualify, you'll eat special breakfast meals and do some computer-based thinking tasks to measure how your brain performs.
Reading, BerkshireAges 65–80 - NCT06830538Recruiting
Recovery and quality of life after corneal transplant
This study looks at how well people recover after a corneal transplant, including their vision, eye health, and overall quality of life. It aims to learn what helps people heal best after surgery.
BolognaAges 18 years+ - NCT06835088Recruiting
Reimplantation of frozen ovarian tissue
This study looks at how often women who had ovarian tissue frozen come back to have it reimplanted, and whether the tissue helps restore ovarian function after treatment.
BolognaAges 13–55 - NCT06833762Recruiting
Predicting improvement after TAVI using exercise tests
This trial looks at whether a simple exercise test (called CPET) can help predict how much your heart function will improve after TAVI, a procedure to replace a narrowed heart valve. If you're scheduled for TAVI through your leg artery and are 18 or older, you might be able to join.
BarcelonaAges 18 years+ - NCT06821035Recruiting
The THRIVE Study: Building Healthy Skills for Teens
This study tests a program to help teens ages 11 to 14 who have had tough experiences learn healthy ways to cope. It involves both the teen and a parent or caregiver, and uses a smartphone app to make it easy to take part.
Irvine, CaliforniaAges 11–14 - NCT07287878Recruiting
Brain stimulation to improve social reward in depression
This trial tests a new type of brain stimulation called temporal interference stimulation to see if it can improve how people with depression experience social rewards. You may be eligible if you have depression with certain features like increased appetite, weight gain, or feeling very sensitive to rejection, and you are between 16 and 60 years old.
Shanghai, ChinaAges 16–65 - NCT06802744Enrolling by invitation
Breathing tube study for avalanche burial simulation
This study tests whether a special breathing tube changes carbon dioxide levels in the body during a simulated avalanche burial. It helps researchers understand how to better protect people trapped under snow.
Aarau, Canton of AargauAges 18–60 - NCT07742397Recruiting
Leg strength and balance in adults over 65
This study looks at how differences in strength and function between your left and right legs might affect your risk of falling. If you join, you'll help researchers understand why some older adults fall and others don't, which could lead to better fall prevention.
Milan, MilanAges 65 years+ - NCT06729437Recruiting
Transcranial brain stimulation for patellar tendon pain
This trial tests whether a gentle brain stimulation technique called transcranial direct current stimulation (tDCS) can improve knee function and reduce pain in people with long-term patellar tendinopathy (jumper's knee). It may help by calming pain signals in the brain.
Valencia, ValenciaAges 18–50 - NCT05849532Recruiting
Home electrical exercise for walking after stroke
This trial tests a home-based program using electrical stimulation to help people with long-term stroke improve walking and leg movement. If you qualify, you may use the device and a smartphone app at home with guidance from the study team.
Chicago, IllinoisAges 18–90 - NCT05954455Recruiting
Studying speech and swallowing development in children with SMA type 1
This study looks at how speech, communication, and swallowing (“bulbar function”) develop in babies and children with SMA type 1. It aims to better understand what to expect over time for children who start approved SMA treatments early.
LondonAges birth–18 years - NCT06696885Recruiting
Mobile App for Exercise Adherence and Hand Function in Chronic Stroke
This study tests whether using a mobile app can help stroke survivors stick with their exercise routine and improve hand function. It is for people who have had a stroke 6 months to 2 years ago and have some residual hand weakness but no severe stiffness or communication problems.
Lahore, Punjab ProvinceAges 35–75 - NCT05929508Recruiting
Rebuilding leg strength after above-knee amputation
This study tests a new approach to improve walking ability and leg function after an above-knee (transfemoral) amputation. It may help by targeting muscle loss and supporting safer, stronger mobility over time.
Chicago, IllinoisAges 18 years+ - NCT06679491Recruiting
How your menstrual cycle affects strength training
This study looks at how resistance training timed to your menstrual cycle affects muscle performance in women who have a natural cycle or take the pill.
Le Tampon, FranceAges 18 years+ - NCT06677541Recruiting
Vibrator use for better pelvic health
This study tests whether using a vibrator can improve sexual function and pelvic floor strength in women with pelvic floor disorders or after surgery. If you have a condition like prolapse, incontinence, or recovering from surgery, this simple home device might help.
Albany, New YorkAges 18 years+ - NCT06673953Recruiting
Breathing training for heart surgery recovery with neck posture problems
This trial tests whether a breathing exercise device can improve heart and lung function in men who had heart bypass surgery at least 3 months ago and also have neck pain from poor posture. It may help you breathe better and feel stronger after surgery.
Giza, Giza GovernorateAges 45–55 - NCT06528977Recruiting
Western diet's effect on heart and immune health
This study looks at how a typical Western diet affects heart health and immune function in healthy middle-aged adults. You will follow a carefully controlled diet for several weeks, and researchers will measure changes in your blood pressure, cholesterol, and immune markers.
Newark, DelawareAges 50–64 - NCT06634147Recruiting
Exercise program to prevent decline in hospitalized older adults
This study is testing a gentle exercise program for older adults (75+) while they are in the hospital. The goal is to see if it helps prevent loss of strength, memory, or thinking skills.
Pamplona, NavarreAges 75 years+
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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.