Clinical trials
Normal Physiology clinical trials
Below are recruiting normal physiology clinical trials, each written for real people, not researchers. We’re tracking 25 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06561828RecruitingEarly Phase 1
Brain stimulation study for learning and decision-making
This study uses a non-invasive brain stimulation technique called TMS (transcranial magnetic stimulation) to see if it can improve how people learn and make decisions. It is for healthy adults who are right-handed.
Baltimore, MarylandAges 18–45 - NCT03407066Recruiting
Study of how people see, hear, think, and move
This study measures how the brain processes sight and other senses through tests done in a lab, online, or by off-site/genetic screening. It may help researchers understand normal perception and cognition, which can guide future treatments.
Bethesda, MarylandAges 13–65 - NCT04950309Recruiting
Brain-signal scanning study using a new MEG sensor
This study tests and “maps” brain activity using a special brain-scanning sensor system that measures tiny magnetic signals. It may help researchers improve how brain function is measured for future studies.
Bethesda, MarylandAges 18–65 - NCT05237973Recruiting
Neuromuscular ultrasound study for healthy people and patients
This study uses an ultrasound scan to look at muscles and nerves (including the breathing muscle). It may help researchers better understand neuromuscular problems and how well ultrasound can detect them.
Bethesda, MarylandAges 18–110 - NCT06050603Recruiting
MRI guided brain stimulation study for memory
This study tests a new way to use brain stimulation guided by MRI to understand memory. It may help people with mild memory problems or healthy volunteers.
Toronto, OntarioAges 18–80 - NCT02535702Recruiting
Brain scan study to measure addiction biology
This study uses brain imaging (MRI) and tasks to better understand what’s happening in the brain in addiction. It may help researchers improve how addiction is studied and measured using brain-based methods.
Bethesda, MarylandAges 18 years+ - NCT03258580Recruiting
Studying how culture and mind affect how we feel pain
This study looks at how beliefs, mood, and social factors affect how people express and judge pain. It mainly uses pain/heat testing and—if chosen—brain scans to understand why pain reports can differ between people.
Bethesda, MarylandAges 18–60 - NCT03288220Recruiting
Brain stimulation trial to improve arm movement
This trial studies whether a specific kind of non-painful brain stimulation (TMS) can improve arm and hand movement. It tests this in healthy volunteers and in people recovering from stroke.
Bethesda, MarylandAges 18–120 - NCT05829044Recruiting
How light exposure affects sleep and body clock by sex and age
This study looks at how non-visual light (light that isn’t just for seeing) affects your sleep timing and circadian rhythms, and whether the effects differ by sex and age. It may help researchers design better light-based or sleep-support strategies in the future.
Boston, MassachusettsAges 18–85 - NCT05398783Recruiting
Study of how metabolism and body composition change over time
This natural history study follows people to understand how metabolism and body composition vary in health and disease. It may help researchers better measure metabolic changes and understand who is at risk as health and treatments change.
Bethesda, MarylandAges 2–99 - NCT05538910Recruiting
Study brain links between depression and substance use
This study uses brain imaging and questionnaires to understand how substance use and depression are connected in the brain. It may help researchers identify biological patterns that could guide better treatments in the future.
Baltimore, MarylandAges 18–60 - NCT05545306Recruiting
Study tests how extra calories change your daily energy use
This study looks at how eating more calories affects your body’s natural heat production and total energy use over a full day. It may help researchers better understand how the body manages weight and energy.
Phoenix, ArizonaAges 18–60 - NCT05604534Recruiting
MRI tests to improve brain scan measurements
This study uses MRI scans to check and improve how medical teams measure brain changes. If you’re eligible, you’ll complete MRI safety screening and imaging while the team studies which scan measurements work best.
Bethesda, MarylandAges 18–100 - NCT05666739Recruiting
Store your sample for future research studies
This study collects and stores your biological samples so researchers can use them for future environmental health questions. You might join if you’re an adult, can travel for visits, and agree to have your samples stored for later use.
Research Triangle Park, North CarolinaAges 18–100 - NCT05707806Recruiting
Brain and decision tasks to study learning
This study tests how people learn from choices and make decisions using computer tasks. Some participants also complete brain scans (MRI) to see how the brain activity matches behavior.
Baltimore, MarylandAges 18–45 - NCT06822413Recruiting
Using light and AI to find cancer early
This trial uses a special light-based test and artificial intelligence to detect several types of cancer early. It aims to see if this method can accurately identify cancer or precancerous changes before any treatment starts.
Nanchang, JiangxiAges Any age - NCT01324206Recruiting
MRI research methods study for adults interested in aging
This study develops new MRI (body imaging) research methods to help aging research. You may qualify if you’re an adult who can consent and follow study steps, and your participation supports exploratory (not diagnostic) aging-related research.
Baltimore, MarylandAges 18–99 - NCT00109174Recruiting
Brain scan study measuring glutamate and GABA
This study uses MRI to measure certain chemicals in the brain (glutamate and GABA) and see how they are metabolized. You may be able to join if you are healthy, can safely have an MRI, and meet the specific enrollment requirements.
Bethesda, MarylandAges 18–65 - NCT02583646Recruiting
Study how weight affects puberty in girls
This study looks at how a girl’s body weight may affect the start and development of puberty. It may help researchers understand what influences puberty timing and development in girls who are not yet having periods.
Research Triangle Park, North CarolinaAges 8–14 - NCT02707029Recruiting
Study of how people report pain and painful conditions
This study looks at how accurately people can describe their pain and related symptoms. It may help researchers improve how pain is measured in future studies.
Bethesda, MarylandAges 12–120 - NCT02446262Recruiting
Study of how the brain and mind shape pain in healthy adults
This study tests how people sense heat and pain, and how the brain and emotions may influence that experience. It is designed for healthy adults and may involve training sessions and (for some parts) MRI scanning.
Bethesda, MarylandAges 18–50 - NCT02629107Recruiting
Sleep and brain scan study with sound cues
This study checks how your brain responds while you sleep using an MRI scanner and gentle sound signals. It may help researchers better understand sleep and brain function.
Bethesda, MarylandAges 18–34 - NCT04946851Enrolling by invitation
Alcohol use study for adults who join the NIAAA screening
This study uses a brain-and-behavior “assessment” (neuroclinical testing) to better understand addiction. You may be tested only if you are an adult and are enrolled in the NIAAA screening program, and you cannot join if you are acutely intoxicated.
Bethesda, MarylandAges 18–99 - NCT03581318Recruiting
Heart MRI study for people with and without heart disease
This study uses magnetic resonance imaging (MRI) to take detailed pictures of the heart. It aims to improve how doctors use heart MRI to diagnose and manage heart conditions.
Bethesda, MarylandAges 7–100
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Normal Physiology trials by city
Studies with a site in or near these metro areas.
Normal Physiology trials by state
Studies with a site anywhere in these states.
Common questions
- Are there clinical trials for normal physiology?
- Yes. Clin2 currently lists 25 recruiting normal physiology 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 normal physiology 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 normal physiology 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.