Clinical trials
Volunteers clinical trials
Below are recruiting volunteers clinical trials, each written for real people, not researchers. We’re tracking 526 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07354607Recruiting
Does electrical stimulation improve blood flow?
This study tests whether a gentle, non-invasive electrical stimulation on the arms can increase blood flow. It may help people with circulation problems.
ChambéryAges 18 years+ - NCT07355790Recruiting
Does a foam pad make a back belt more comfortable?
This study tests whether adding an extra foam pad to a lumbar belt makes it more comfortable and how it affects your body. You will be asked to wear the belt, walk on a treadmill, and have an MRI.
Saint-EtienneAges 18–50 - NCT07369908Recruiting
Ear stimulation for anxiety and emotion control
This study tests whether a gentle, non-invasive electrical stimulation on the ear (called taVNS) can help lower anxiety and improve how you manage your emotions. It’s for healthy people who want to explore a potential new way to support emotional well-being.
Chengdu, SichuanAges 18–30 - NCT07371793RecruitingPhase 1/Phase 2
Study of BBI-001 for healthy people and those with iron overload
This trial tests an experimental drug called BBI-001. It first looks at safety in healthy volunteers, then tests whether it can help people with hereditary hemochromatosis, a condition where the body stores too much iron.
Sydney, New South WalesAges 18–70 - NCT07372703RecruitingPhase 1
Safety study of VV913 capsules in healthy Chinese men
This study tests a new capsule called VV913 in healthy male volunteers to see how safe it is and how the body processes it. It is a first-in-human trial in China to gather basic safety information.
Hefei, AnhuiAges 18–45 - NCT07373366RecruitingPhase 2
Noninvasive brain stimulation for TBI patients and healthy volunteers
This trial tests whether a noninvasive brain stimulation technique can help people who have suffered a traumatic brain injury (TBI), specifically those with diffuse axonal injury (DAI). It also includes healthy volunteers for comparison.
São Paulo, São PauloAges Any age - NCT07386730RecruitingPhase 1
Psychedelic therapy study for older adults with low well-being
This study tests if a single dose of psilocybin (a psychedelic) or dextromethorphan (a cough suppressant) can improve well-being in healthy older adults who feel their well-being is below average. It aims to understand how these drugs might help boost mood and life satisfaction.
San Francisco, CaliforniaAges 50–85 - NCT07390721Recruiting
Diaphragm taping and high-intensity exercise for fit adults
This study tests if a special tape on your diaphragm (the main breathing muscle) plus high-intensity interval training can boost your fitness. It is for people who are already fit and train regularly.
Bursa, AğrıAges 18–35 - NCT07395024RecruitingPhase 1
How other drugs affect ASP3082 in healthy adults
This trial tests how three common medicines (fluconazole, carbamazepine, and itraconazole) change the way the body processes a new drug called ASP3082. It helps researchers understand safe dosing for future studies.
Baltimore, MarylandAges 18–65 - NCT01386424Recruiting
Healthy adult check-in for future infectious-disease volunteer studies
This study enrolls healthy adults to help set up future research studies about infectious diseases. If you qualify, you may be asked to join later “healthy volunteer” experiments and allow your samples to be stored for future research.
Bethesda, MarylandAges 18–65 - NCT00182858Recruiting
Provide tissue or blood samples for future research
This study collects tissue or blood samples from adults (and some healthy volunteers) to help researchers learn more and plan future studies. If you qualify, your samples may be used to test new ideas related to your health or for exploratory research.
Baltimore, MarylandAges 18–99 - NCT00428987Recruiting
Study of body and behavior traits in weight groups
This study looks at how physical traits and everyday behaviors differ among people who are overweight, obese, or in the normal-weight range. It may help researchers better understand risk factors related to weight and health.
Bethesda, MarylandAges 18–100 - NCT00001360Recruiting
Brain Blood Flow During Thinking Study
This research study uses brain imaging to see how blood flows in your brain while you think and perform tasks. Researchers hope to better understand how healthy brains work during different types of thinking.
Bethesda, MarylandAges 18–65 - NCT00900419Recruiting
Check biomarkers during bronchoscopy in breathing and throat pre-cancer
This study looks at “biomarkers” (measurable signals in samples) taken during bronchoscopy or related procedures in people with severe airway pre-cancer or certain lung/throat cancers, and in healthy volunteers. The goal is to better understand what these biomarkers mean and how they might help with diagnosis, staging, or monitoring.
Aurora, ColoradoAges 21–90 - NCT01568697Recruiting
Studying gum disease in people with immune and genetic differences
This study looks at how mouth bacteria and the immune system may work together to cause gum disease (periodontitis), especially in people with certain genetic immune problems. It may help researchers understand what drives severe gum disease and how to better monitor or treat it in the future.
Bethesda, MarylandAges 7–100 - NCT00004577Recruiting
New Brain Imaging Methods Research Study
This research study tests new ways to take detailed pictures of your brain using MRI (a safe imaging machine). You'll help researchers develop better imaging methods by lying still in the scanner for up to 2 hours.
Bethesda, MarylandAges 18–120 - NCT01266577Recruiting
MRI study measuring brain and muscle chemical levels
This study uses MRI techniques to measure natural chemical “metabolites” in the brain and muscle. You may be able to join if you’re generally healthy and can safely complete a long MRI scan.
Bethesda, MarylandAges 18–65 - NCT01375530Recruiting
Volunteers needed for future medical research testing
This trial is looking for adult volunteers who agree to have blood and/or tissue samples collected and stored for later studies. It may help researchers better understand the immune system and future treatments, although it is mainly a sample-storage study rather than a specific drug treatment.
Atlanta, GeorgiaAges 18–60 - NCT01399385Recruiting
MRI and heart scans to test possible heart disease
This study tests new or improved heart imaging methods to understand whether people have heart-related blood vessel disease. It may help by comparing scan results to your health history and other testing to better spot heart problems earlier.
Bethesda, MarylandAges 18–100 - NCT00090662Recruiting
Healthy Volunteer Sample Collection for Medical Research
This research study collects blood, urine, and other samples from healthy volunteers to support medical research. Depending on the type of sample, you may donate blood, provide skin samples, or participate in other non-invasive procedures. Your samples help scientists understand health and develop new treatments.
Bethesda, MarylandAges 18–85 - NCT02023073Recruiting
Eye measurements needed for safe use of eye lasers
This study measures basic eye features that matter for using ophthalmic (eye) lasers safely and accurately. You may be able to join if you’re healthy, within a certain vision range, and have no known or past eye conditions (including past laser eye surgery).
Tel LitwinskyAges 18–40 - NCT01900132Recruiting
Measures nerve and muscle signals in healthy people and patients
This study uses a painless electrical method to record how muscles and nerves work over time. It aims to better understand normal patterns (healthy volunteers) and to learn how these signals change in people with neuromuscular or movement-related conditions.
Bethesda, MarylandAges 2–110 - NCT02317328Recruiting
Adaptive eye imaging to take very detailed retinal pictures
This study uses special “adaptive optics” equipment to capture very detailed images of the retina (the nerve layer at the back of the eye). It may help improve eye tests for people with eye disease and also includes some healthy volunteers.
Bethesda, MarylandAges 12–120 - NCT02740868RecruitingPhase 2
Breathing MRI using xenon gas to study lungs
This trial uses a special breathing MRI (you breathe a gas mixture) to measure how well your lungs work. It studies healthy kids and people with lung conditions like cystic fibrosis or asthma, and it may help researchers better understand lung function and flare-ups.
Toronto, OntarioAges 8 years+
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Common questions
- Are there clinical trials for volunteers?
- Yes. Clin2 currently lists 526 recruiting volunteers 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 volunteers 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 volunteers 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.