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
- NCT06958952Recruiting
Digestive aid for new stomach upset
This study tests whether a natural digestive supplement can help people with new-onset dyspepsia (stomach upset). It's for people who haven't taken other medications and don't have other stomach problems.
TehranAges 18–75 - NCT06737224Recruiting
Fasting and exercise effects on immune health
This study looks at how a 48-hour fast, alone or combined with exercise, affects your immune system and blood sugar control. It may help explain how short-term fasting can improve health in active young adults.
Kelowna, British ColumbiaAges 19–35 - NCT07060651Recruiting
How the brain processes smells
This study looks at how different parts of the brain handle smells. It may help researchers better understand the sense of smell in people.
Chicago, IllinoisAges 18 years+ - NCT07708220Recruiting
Laparoscopic treatment for acid reflux in children
This trial tests a minimally invasive surgery to treat gastroesophageal reflux disease (GERD) in children. It aims to reduce symptoms and improve quality of life for kids who have not had prior reflux surgery.
TantaAges 2–18 - NCT07020247RecruitingPhase 3
Personalized radiation plus chemo with or without immunotherapy for rectal cancer
This trial tests adding immunotherapy to standard radiation and chemotherapy for patients with locally advanced rectal cancer. The goal is to see if a personalized approach improves outcomes while sparing more normal tissue.
Chengdu, SichuanAges 18 years+ - NCT04792320Recruiting
Probiotics and fiber for kidney disease with leg artery blockage
This study tests whether an oral absorbent plus probiotics can improve gut health and circulation in people who have chronic kidney disease and symptomatic peripheral artery disease (PAD). It will also track changes in blood markers and how well blood vessels function.
TaipeiAges 20 years+ - NCT06958523Recruiting
Apple Health Study for US iPhone users
This study uses your iPhone and optional devices like Apple Watch to collect health data over time. It aims to discover how technology can help monitor and improve health.
Washington D.C., District of ColumbiaAges 18 years+ - NCT07473271Enrolling by invitation
Vaginal therapy devices after pelvic radiation
This trial tests special exerciser and irrigation devices to help with vaginal recovery after pelvic radiation. It may help reduce side effects like narrowing or dryness.
Beijing, Beijing MunicipalityAges 18–70 - NCT06961045Enrolling by invitation
Nerve repositioning study for dental implants in lower jaw
This study tests a computer-guided technique to move a nerve in the lower jaw so that dental implants can be placed in areas with thin bone. It looks at whether this procedure causes any numbness afterward.
Tanta, Gharbia GovernorateAges 30–75 - NCT07010146RecruitingPhase 2
Estrogen's Effect on Bone Health in FHA
This study tests how estrogen treatment affects bone strength in young women with Functional Hypothalamic Amenorrhea (FHA), a condition where periods stop due to stress, low weight, or over-exercise. Participants who have had very few periods will receive estrogen to see if it improves bone density.
Charlottesville, VirginiaAges 14–30 - NCT07689747Recruiting
Brain training and ankle tests for athletes with weak ankles
This study tests if adding a special computer-based brain training activity to regular ankle function tests can help teenage and young adult athletes who have ongoing ankle problems. If you are a licensed football, basketball, or volleyball player aged 16–25 with chronic ankle instability for at least a year, you may be eligible.
Istanbul, SarıyerAges 16–25 - NCT05714241Recruiting
Blood tests to study heart pain with blocked-unblocked arteries
This study looks at blood “biomarkers” and platelet function to better understand INOCA (heart-related chest pain despite no major artery blockage). You may be eligible if you have INOCA and are already taking aspirin, and if you haven’t taken certain blood-thinner or platelet-altering medicines recently.
RomeAges 18 years+ - NCT07475039Recruiting
Friendly phone calls to support older adults
This study tests whether a program of friendly phone calls from trained volunteers can help older adults feel more connected and supported. If you are 65 or older and already receive home-delivered meals or other services, you may be able to join.
Gainesville, FloridaAges 55 years+ - NCT07672548Recruiting
Pilates for better breathing and quality of life in postmenopausal women
This 10-week study tests whether Pilates exercises can improve lung function and overall well-being in postmenopausal women who have breathing problems. It may help you feel stronger and breathe easier.
AmmanAges 50–60 - NCT06471582Recruiting
How meal timing affects your menstrual cycle
This study looks at how the timing of energy from food affects your menstrual cycle in women who exercise regularly. It may help understand how to support healthy periods for active women.
Colorado Springs, ColoradoAges 18–40 - NCT06973746Recruiting
Sitting up in a chair in the ICU for patients on breathing machines
This study tests whether getting patients who are on a breathing machine to sit in a chair helps them recover better. It looks at whether this simple activity can improve how well they get back to normal function.
Orléans, Centre-Val de LoireAges 18 years+ - NCT06472349Recruiting
Upper trapezius muscle and chronic shoulder pain study
This study looks at how the upper trapezius muscle works and how it may be linked to long-term shoulder pain. Researchers will measure muscle shape, activity, and how you move your shoulder to understand pain better.
TaipeiAges 18–50 - NCT07529093Recruiting
Mobilization and Movement Training for Sacroiliac Joint Pain
This trial tests whether a combination of hands-on joint mobilization techniques and specific movement control exercises can reduce pain and improve function in people with sacroiliac joint dysfunction (pain in the lower back/buttock area where the spine connects to the pelvis). You would receive these treatments over several weeks and be measured on pain relief, movement, walking, and daily activities.
Lahore, Punjab ProvinceAges 45–64 - NCT06474429Recruiting
Movement test for chronic low back pain recovery
This study tests whether a simple movement screening test can help physical therapists decide when someone with chronic lower back pain is ready to stop treatment. If you join, you will do a few basic movements to see how your back is doing.
Plano, TexasAges 18–49 - NCT07024238Enrolling by invitation
Short-chain fatty acid supplement for kidney transplant patients
This study tests whether taking a short-chain fatty acid (a type of fiber-like substance) supplement can improve gut health in people who have had a kidney transplant. It may help keep the transplant working well.
Martin, SlovakiaAges 18 years+ - NCT05880719Recruiting
Music-based computer program for memory after first psychosis
This study tests whether using a computer-based music program can help improve memory and thinking in young people who have had their first episode of psychosis. Participants will work in small groups with the program to see if it helps their cognitive skills.
CaenAges 18–30 - 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+ - NCT07488455Recruiting
Video vs. written pelvic floor education for new mothers
This study compares two ways of learning about pelvic floor health after childbirth: watching a video or reading written materials. The goal is to see which method helps new mothers more.
Ankara, YenimahalleAges 18–45 - NCT06479499Recruiting
Pilates vs aerobic exercise for breathing and anxiety in COPD
This trial compares Pilates exercises with aerobic exercises to see which is better at reducing shortness of breath, improving daily function, and lowering anxiety in people with moderate COPD.
Lahore, Punjab ProvinceAges 45–65
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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.