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
- NCT07431554Recruiting
Studying heart function in low oxygen after HAPE
This study looks at how the right side of the heart responds to low oxygen levels in people who have had high altitude pulmonary edema (HAPE) in the past. It will help researchers better understand right heart function.
ZurichAges 18–80 - NCT07431580Recruiting
How low oxygen affects heart function in asthma
This study tests how your heart's right ventricle adapts when you breathe lower-oxygen air (like at high altitude). If you have well-controlled asthma, researchers want to see if your heart handles the challenge differently.
Zurich, Canton of ZurichAges 18–80 - NCT07422220Recruiting
Walnuts and brain health: a long-term study
This study tests whether eating walnuts every day for a long time can help keep your brain healthy as you age. It is for middle-aged and older adults who carry extra weight around their belly but are otherwise generally healthy.
Maastricht, LimburgAges 45–75 - NCT07419633Recruiting
Study on supplements to improve strength and thinking in older adults
This trial tests if two supplements, HMB and 2-HOBA, taken alone or together, can help improve muscle strength and mental function in healthy adults over 65. The goal is to see if these supplements can improve overall quality of life.
Montreal, QuebecAges 65 years+ - NCT07412379Recruiting
Predicting recovery after cancer surgery for older adults
This study looks at how older adults (65+) with digestive tract cancers respond to surgery aimed at a cure. Researchers want to see what factors affect recovery and quality of life after the operation.
BogotáAges 65 years+ - NCT07414225Recruiting
MitraClip procedure for atrial functional mitral regurgitation
This trial tests a minimally invasive procedure to repair a leaky mitral valve in people with a specific type of heart failure. The goal is to see if the procedure, called transcatheter edge-to-edge repair (TEER), is safe and effective in reducing symptoms and improving heart function.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06823700Recruiting
Study of SQ-Kyrin device for leaky mitral valve from heart failure
This trial tests a new device (SQ-Kyrin) to fix a leaky mitral valve without open-heart surgery. It is for people with heart failure whose valve leak causes symptoms, and who are not good candidates for traditional surgery.
Valladolid, ValladolidAges 18 years+ - NCT06826287Recruiting
7T MRI study of action watching in cerebral palsy
This study uses a very powerful 7T MRI scanner to look at how your brain responds when you watch actions. It may help doctors understand brain injury in people with cerebral palsy.
Calambrone, PISAAges 11–40 - NCT07403630Recruiting
Tumor chemogenomic profiler for cancer patients of all ages
This trial uses a new testing platform to analyze the genes and proteins in your tumor, aiming to find the most effective treatments for people with cancer that has come back, is not responding to treatment, or has spread. It is designed for both children and adults with any type of blood cancer or solid tumor.
Palermo, PalermoAges 1 year+ - NCT07406295Recruiting
Breathing exercises to improve brain and immune health
This trial tests whether a daily breathing exercise device can improve blood flow to the brain and immune function in people with obesity. It may help reduce health risks linked to excess weight.
Tallahassee, FloridaAges 18–45 - NCT07393165Recruiting
Thyroid hormone therapy for children with mild thyroid issues
This trial tests whether a thyroid hormone medication (levothyroxine) can improve heart function in children who have slightly high TSH levels but normal thyroid hormones. It may help children aged 4 to 15 with subclinical hypothyroidism.
Tanta, El-GharbiaAges 4–15 - NCT07388576Recruiting
AP-Brain supplement for attention in healthy young adults
This trial tests a supplement called AP-Brain to see if it helps with attention and focus in healthy young adults (ages 18–39) who feel they have attention problems. It compares different doses to find the safest and most effective one.
London, OntarioAges 18–39 - NCT07385625Recruiting
Studying a new device for severe tricuspid valve leakage
This trial tests a device called the Pivot Bridge System to treat severe leakage of the tricuspid valve (the valve between the right upper and lower heart chambers). The goal is to see if it safely reduces symptoms like swelling and shortness of breath.
Daegu, Dalseo-guAges 18 years+ - NCT07387783Recruiting
Sleep quality and thinking skills in adults study
This study looks at how sleep affects thinking abilities like memory and focus in healthy adults aged 18 to 35. You will wear a sleep tracker for five nights and complete a thinking test.
IstanbulAges 18–35 - NCT07387952Recruiting
Fecal transplant with nutrition help for chronic constipation
This trial tests if a fecal microbiota transplant combined with nutritional support can improve chronic constipation that hasn't gotten better with standard treatments. It's a small early study to see if the approach is safe and works.
BeijingAges 18–70 - NCT07380789Recruiting
Managing acute chest pain after battle injuries
This study is testing better ways to manage severe chest pain after combat injuries in Ukraine. If you have chest pain from battle and are 18 or older, it may help find a treatment that works for you.
RivneAges 18–60 - NCT07376109Recruiting
Infertility and fertility treatment effects on sexual health
This study looks at how infertility and fertility treatments affect sexual function and behavior. It uses a questionnaire to gather information from women seeking care at a specific fertility center.
Montreal, QuebecAges 18–44 - NCT06841406RecruitingPhase 4
Budesonide for chronic stomach discomfort after meals
This trial tests whether a medicine called budesonide can help people with a type of chronic stomach discomfort that gets worse after meals (functional dyspepsia). If you often feel full or bloated after eating and have had a normal stomach exam, this study may be a good fit for you.
LeuvenAges 18–70 - NCT05473793Recruiting
Dried vegetables study for constipation and gut bacteria
This study tests whether eating a dried vegetable can improve bowel habits and change gut bacteria. It may help people who feel their bowel function is not working well and have hard or infrequent stools.
Wageningen, GelderlandAges 20–80 - NCT07367126Recruiting
Nerve pain in knee osteoarthritis: Pain and function study
This study looks at nerve-related pain in people with knee osteoarthritis and how it affects their pain level and daily function. It may help understand if nerve pain is a key factor in your knee OA symptoms.
IstanbulAges 40–70 - NCT07364318Recruiting
Thinking and memory in sleep apnea
This study looks at how thinking and memory are affected in people with newly diagnosed obstructive sleep apnea (a condition where breathing stops briefly during sleep). It aims to understand the impact of sleep apnea on brain function.
BratislavaAges 18–65 - NCT07368166Recruiting
A study to measure PTSD-related daily life challenges in children
This trial tests a questionnaire called PTSD-iMPACT that helps measure how PTSD affects a child's daily life. It is designed for children and teens who may or may not have a PTSD diagnosis, and their caregivers.
AachenAges 7–18 - NCT07365098Recruiting
Liver Transplant and the 30-Second Sit-to-Stand Test
This study looks at how well people waiting for a liver transplant can do a simple 30-second test of standing up and sitting down. The goal is to see if this test can help doctors understand your physical strength before surgery.
MalatyaAges 18–65 - NCT07368712Recruiting
Study of kidney function in healthy people and those with kidney issues
This study looks at how the kidneys work in both healthy people and those with reduced kidney function. Researchers want to understand kidney health better to help people in the future.
BerlinAges 18–75
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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.