Clinical trials
Volunteers clinical trials
Below are recruiting volunteers clinical trials, each written for real people, not researchers. We’re tracking 528 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT00442195Recruiting
Sample collection study in healthy volunteers
This study collects small samples of blood and cells from the inside of your mouth. Depending on your age, it may also collect bone marrow and skin (for research lab testing). It’s mainly about research planning and analysis rather than treating a disease.
Bethesda, MarylandAges 8–99 - NCT00104325Recruiting
Blood Cell Collection Study for Aging Research
This study collects white blood cells from healthy volunteers every 56 days to help researchers understand how aging affects the immune system. Your cells will be studied in a lab to learn more about natural aging processes.
Baltimore, MarylandAges 18–120 - NCT00024635Recruiting
Understanding Mood and Anxiety Disorders Study
This research study evaluates people with mood disorders (like depression or bipolar disorder), anxiety disorders, or people without these conditions to better understand how these conditions develop and affect the brain. Researchers will ask questions and may do other assessments to learn more.
Bethesda, MarylandAges 3–99 - NCT07443683Recruiting
Eye health training for female health volunteers
This trial tests if teaching female community health volunteers about eye health can lead more people in their community to visit a vision center. It focuses on understanding how to improve access to eye care.
Dhangadi, SudurpaschimAges 18–58 - NCT07474545RecruitingPhase 1
Safety study of KL0011034 injection in healthy volunteers
This trial tests a new injection called KL0011034 to see if it is safe and how the body processes it. Healthy volunteers aged 18–45 who meet specific health and lifestyle criteria can join.
Changsha, HunanAges 18–45 - NCT07673601RecruitingPhase 1
Study of adimanebart in healthy adults
This study tests how a single injection of adimanebart is absorbed by the body and how it travels through the bloodstream. It is for healthy adults to help understand the drug's behavior.
MontrealAges 18–65 - NCT07527221RecruitingPhase 1
Safety study of ZE74-0282 in healthy adults
This is an early-stage safety study testing a new experimental drug called ZE74-0282 in healthy volunteers. Researchers want to learn how safe the drug is and how well people tolerate it before testing it in patients with a disease.
Randwick, New South WalesAges 18–55 - NCT07535606RecruitingPhase 1
Safety Study of ALN-4915 in Healthy Adults
This is an early-stage study testing a new investigational medicine called ALN-4915 in healthy volunteers. Researchers want to learn if it is safe and how the body processes it.
LondonAges 18–65 - NCT07641634RecruitingPhase 1/Phase 2
Testing PRO-203 for active systemic sclerosis
This trial tests a new investigational medicine called PRO-203 for people with systemic sclerosis (scleroderma). It aims to see if the medicine can help control active disease that hasn't responded to other treatments.
Melbourne, VictoriaAges 18–65 - NCT07656350Recruiting
Cannabis-like drug and sleep loss study for anxiety
This study tests whether a cannabis-like drug can help people with higher-than-normal anxiety cope with a night of very little sleep. You will be asked to sleep only 4 hours on one occasion.
London, LondonAges 18–60 - NCT07364877Enrolling by invitationPhase 1
Safety study of DW4421 and DW4421S in healthy adults
This trial tests two forms of a new drug, DW4421 and DW4421S, to see how safe they are and how the body processes them. It is for healthy volunteers aged 19 to 50.
Cheongju-siAges 19–50 - NCT05041166Enrolling by invitationPhase 1
MRI scan using a safe imaging molecule in healthy adults
This study uses a labeled nutrient-like molecule ([13C]pyruvate) to create clearer MRI images. It’s for healthy volunteers and helps researchers understand how well this imaging agent works.
New York, New YorkAges 18–80 - NCT02948361Enrolling by invitation
Testing a breast scan device on healthy volunteers
This study tests how well a new breast scanning device works in people who volunteer. You may be eligible if you can safely tolerate the scan and fit your breast into the device.
Novato, CaliforniaAges 18 years+ - NCT07753291Recruiting
Yi Jin Jing exercise for muscle and bone health in adults
This study looks at whether a special exercise routine called Yi Jin Jing (a type of traditional Chinese exercise) can help improve muscle and bone health in adults. It might be good for you if you are mostly healthy and want to try a gentle exercise program.
BeijingAges 18–90 - NCT07285122RecruitingPhase 1
Inhaled study drug for healthy smokers and people with COPD
This study tests an inhaled medication called RB042 in healthy adults, healthy smokers, and people with COPD. It aims to see how the drug works in the body and whether it is safe, which could help in developing a new treatment for COPD.
Nedlands, Western AustraliaAges 18–80 - NCT03895645Enrolling by invitation
Research study using stored human samples
This study uses stored blood or other human samples that were saved from earlier medical research or care. It helps researchers answer new questions without needing you to give a new sample right now.
Bethesda, MarylandAges 18–116 - NCT07169630RecruitingPhase 1
PET scan study for Alzheimer's or mild cognitive impairment
This study uses a special PET scan to look at a brain protein called PDE4 in people with Alzheimer's disease or mild cognitive impairment. It may help researchers understand how this protein is involved in memory and thinking problems.
Bethesda, MarylandAges 50–100 - NCT07706686RecruitingPhase 1
Dengue challenge study in people with prior infection
This study tests how the body responds to a mild, lab-made dengue virus in people who have had dengue before. It looks at how the immune system reacts to a second infection, which may help improve future vaccines and treatments.
Bethesda, MarylandAges 18–50 - NCT06668922Recruiting
Diet and irritable bowel syndrome study
This study compares how people with and without irritable bowel syndrome (IBS) react to different foods. It may help find which foods trigger symptoms and which are safe to eat.
Los Angeles, CaliforniaAges 18–75 - NCT07446400RecruitingPhase 1
Drug interaction study for repinatrabit
This trial tests how repinatrabit interacts with common medications like birth control, metformin, and others. It helps doctors understand safe dosing and potential side effects.
Melbourne, VictoriaAges 18–55 - NCT07751731Recruiting
Survey on choosing a health care proxy for incarcerated people
This study asks incarcerated people about their views on choosing someone to make health care decisions for them if they cannot. Your answers could help improve how health care decisions are handled in prison.
Bethesda, MarylandAges 18–120 - NCT06274749Recruiting
Urolithin A for blood sugar in adults 55+ with extra weight
This study tests if a natural supplement called Urolithin A can help improve how your body handles sugar (glucose) in healthy adults aged 55 and older who have a higher body weight. You would take a daily capsule and come in for tests including blood work, treadmill walks, and an MRI.
Baltimore, MarylandAges 55–100 - NCT07680686RecruitingPhase 1
Study of ubrogepant tablets in healthy adults
This trial studies how different forms of ubrogepant move through the body in healthy adults. It is designed to help find the best way to take the medication for future patients.
Grayslake, IllinoisAges 18–55 - NCT07712640RecruitingPhase 1
Comparing two tablet forms of BGB-58067 and food effect
This study tests how two different tablet versions of the study drug BGB-58067 enter the body and how food affects the drug. Healthy volunteers take the drug to help understand the best way to give it in future trials.
Adelaide, South AustraliaAges 18–65
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Common questions
- Are there clinical trials for volunteers?
- Yes. Clin2 currently lists 528 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.