Clinical trials
Volunteers clinical trials
Below are recruiting volunteers clinical trials, each written for real people, not researchers. We’re tracking 525 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06433310RecruitingPhase 4
A dietary supplement's effect on gut fungi in healthy adults
This study tests whether a dietary supplement (L-phenylalanine) can affect the natural balance of fungi in the gut. Healthy volunteers take the supplement for a short time, and researchers check how it changes their gut fungi.
New York, New YorkAges 18 years+ - NCT06431932RecruitingPhase 1/Phase 2
Fisetin for healthy and older adults with multiple conditions
This trial tests a pill called fisetin, which may help clear aging cells from the body. It is studying two groups: healthy younger adults and older adults with multiple health problems who have recently been in the hospital.
HvidovreAges 20 years+ - NCT06334705Recruiting
30-year follow-up of the EGEA asthma study
This study invites people who took part in a previous EGEA survey to return for a 30-year check-up. The goal is to track long-term health changes related to asthma and allergies.
GrenobleAges 18 years+ - 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 - NCT06352242Recruiting
Study of immune activity after CAR-T therapy for lymphoma
This study looks at a biological process called trogocytosis (when immune cells swap pieces of their outer coating) to see if it can help predict how well CAR-T cell therapy works for people with a type of lymphoma called diffuse large B-cell lymphoma.
MontpellierAges 18 years+ - NCT06324604RecruitingPhase 1
Safety study of MTX-101 in healthy adults
This trial tests a new drug called MTX-101 in healthy volunteers to see if it is safe and how the body processes it. It helps determine the right dose before testing in patients with certain conditions.
Heidelberg, VictoriaAges 18–65 - NCT06275984Enrolling by invitation
Online CPR training for volunteers in Camp de Tarragona
This trial tests an online training program to teach everyday people how to perform CPR. It wants to see if a network of volunteers can be trained effectively through the internet, so you can help save lives in your community.
Barcelona, BarcelonaAges 18 years+ - NCT06281951RecruitingPhase 1
Nebulized fentanyl study in healthy volunteers
This trial tests a nebulized (inhaled mist) form of fentanyl in healthy volunteers to see how it works in the body. It is a first-in-human study of the drug given through a nebulizer, which might help people with acute pain in the future.
Rouen, FranceAges 18–68 - NCT06269653Recruiting
Protein turnover study across the lifespan
This study measures how the body makes and breaks down proteins throughout life. You drink a small amount of special water (deuterium oxide) and give a few blood, urine, and muscle samples to track protein changes.
Baltimore, MarylandAges 20–120 - NCT06258941RecruitingPhase 1/Phase 2
Classroom exercise breaks and children's thinking skills
This study tests whether short exercise breaks in the classroom can improve how children think and stay fit. Children will do simple physical activities during the school day, and researchers will measure changes in attention, memory, and physical fitness.
Royal Center, IndianaAges 8–12 - NCT06270589Recruiting
Intense Exercise with Mindfulness for Kids' Thinking Skills
This study tests whether combining high-intensity interval training (short, intense exercise bursts) with mindfulness recovery (focusing on the present moment) can improve thinking skills like focus and planning in children. It may help 10-to-12-year-olds who are generally healthy.
West Lafayette, IndianaAges 10–12 - NCT06267183RecruitingEarly Phase 1
Safety study of a new drug in healthy volunteers
This study tests a new investigational drug called SV001 in healthy volunteers to see if it is safe and how the body handles it. It is a first-in-human trial, meaning this drug has not been tested in people before.
ShanghaiAges 18–45 - NCT06244472Recruiting
New brain scanner for fast brain imaging
This study uses a new type of brain scanner (MEG) to take very fast pictures of brain activity. It's for healthy people or those who've had a mild concussion recently.
BronAges 18–70 - NCT06223555Recruiting
Mixed meal energy study in healthy adults
This study looks at how your body responds to a mixed meal (a test drink or meal) when the calories are either fixed or adjusted to your energy needs. It may help researchers understand how to measure metabolism more accurately.
Phoenix, ArizonaAges 18–99 - NCT06209723Recruiting
Vegetarian diet study for recent heart attack patients and their partners
This study tests whether a vegetarian diet can help the immune system recover after a heart attack. It is for people who recently had a heart attack and their healthy partners.
NijmegenAges 18 years+ - 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 - NCT06166056RecruitingPhase 1/Phase 2
Testing an inhaled medicine for bronchiectasis safety
This trial tests an inhaled medication for people with bronchiectasis, a lung condition causing chronic cough and mucus. It first checks safety in healthy volunteers, then studies how the drug works in people with bronchiectasis.
CambridgeAges 18–80 - NCT06122701Enrolling by invitation
Vitamin B1 movement in people with and without an active OCT1 transporter
This study checks how vitamin B1 (thiamin) moves through the body in healthy people. It compares two groups: those with a normal OCT1 liver transporter and those with a less active one. The goal is to see if genetics affect how your body handles vitamin B1.
Greifswald, Mecklenburg-VorpommernAges 18–50 - NCT06079216Recruiting
Music and connection for older adults
This trial uses music to help older adults in residential care feel more connected. Volunteers will attend music sessions to see if they improve mood and social bonds.
Winchester, MassachusettsAges 18–103 - NCT06061822Recruiting
Testing AI for better heart MRI scans
This trial is testing a new artificial intelligence system that helps doctors take clearer, faster heart images using MRI. It aims to make heart scans more accurate and comfortable for patients.
LondonAges 18 years+ - NCT06024421RecruitingPhase 1
Testing high doses of favipiravir in healthy volunteers
This study tests the safety and how the body processes very high doses of the antiviral drug favipiravir in healthy people. It helps find the highest dose that is still safe before testing in patients.
ParisAges 18–75 - NCT06017934Recruiting
Increasing physical activity for older adults in the hospital
This trial is testing whether having trained volunteers help older hospital patients with simple exercises can keep them more active during their stay. It aims to improve recovery and prevent muscle loss.
Frimley, SurreyAges 65 years+ - NCT05994976Recruiting
Collecting skin samples from people with skin conditions
This study collects skin samples (like small biopsies or swabs) from people with certain skin conditions and from healthy volunteers. The samples help researchers learn more about these conditions and may lead to better treatments.
Montreal, QuebecAges 18 years+ - NCT05951816RecruitingPhase 1
Imaging study for amyloidosis in heart and body
This study tests a new imaging agent (99mTc-p5+14) that helps doctors see amyloid deposits in the body, especially in the heart. It is for healthy volunteers and people with AL or ATTR amyloidosis that has affected the heart.
Knoxville, TennesseeAges 18 years+
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Common questions
- Are there clinical trials for volunteers?
- Yes. Clin2 currently lists 525 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.