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
- NCT07580586RecruitingPhase 1
Study of BV100's effect on polymyxin B in healthy volunteers
This early-stage study tests how a new drug called BV100 affects how your body processes polymyxin B, an antibiotic. Researchers want to understand how these two drugs interact so they can develop safer treatments.
ViennaAges 18–55 - NCT07565064Enrolling by invitation
Vitamin D Blood Test Stability Study
This study tests how accurately a vitamin D blood test works with fresh versus frozen samples. Your blood samples will help researchers understand the best way to store and measure vitamin D levels.
Salem, New HampshireAges 22 years+ - NCT07542158Enrolling by invitationPhase 2
Ultra-Low Radiation PET Imaging Study for Brain Scanning
This study tests a new way to take brain imaging scans (PET scans) using a very small amount of radioactive tracer. Researchers want to see if they can get clear pictures of your brain while reducing your radiation exposure compared to standard scans.
Englewood, New JerseyAges 18–120 - NCT07362290Enrolling by invitation
Study of drug binding in the lungs using PET scan
This study uses a special PET scan to see how a drug (XBD173) binds to a protein in the lungs. It may help researchers understand inflammation in the lungs and find new ways to treat lung diseases.
LondonAges 25–75 - NCT07315451Enrolling by invitation
Measuring spine space with ultrasound in different body positions
This study compares two positions (lying on your side vs. sitting upright) for measuring the space between the bones in your lower back using ultrasound. It aims to find which position gives a clearer view, especially for people with a higher body mass index.
KocaeliAges 18 years+ - NCT07284576Enrolling by invitationPhase 2
Low-dose PET scan for heart imaging
This trial tests a very low dose of a radioactive tracer (18F-flurpiridaz) for PET scans of the heart. It aims to see if using less radiation still produces clear images, which may be safer for patients who need repeated scans.
Englewood, New JerseyAges 18–120 - NCT07253155Enrolling by invitation
Probiotics for preventing gut symptoms in overweight adults
This study tests whether taking probiotics can help prevent stomach and gut discomfort in people who are overweight or have obesity. You may be eligible if you are at a certain weight and age, eat a balanced diet, and do not have chronic gut issues.
ColeraineAges 18 years+ - NCT07220330Enrolling by invitation
Testing a mobile app for ADHD assessment
This study tests a new mobile app called QbMobile to see if it can help assess ADHD. It compares results from people with and without ADHD to improve diagnosis tools.
San Jose, CaliforniaAges 6–60 - NCT07215871Enrolling by invitationPhase 1
Second H10N7 flu challenge for prior participants
This study tests whether people who have already been exposed to a lab-made H10N7 flu virus can be safely exposed again. It checks how their immune system responds and how long they shed the virus, in a controlled, isolated setting.
Bethesda, MarylandAges 18–55 - NCT07207629Enrolling by invitation
Heart ultrasound study in healthy blood donors
This study uses a heart ultrasound (echocardiography) to see how the heart changes when healthy volunteers donate blood. If you're a healthy adult who can donate blood, you may help researchers understand more about blood donation's effect on the heart.
Nîmes, OccitanieAges 18–40 - NCT07198711Enrolling by invitationPhase 1
Dream induction during sleep with anesthesia and brain monitoring
This study tests whether we can safely and reliably induce dreaming in healthy adults using anesthesia and brain wave (EEG) monitoring. You would be given a low dose of an anesthetic and then monitored as you fall asleep to see if dreams can be triggered.
Stanford, CaliforniaAges 18–70 - NCT07162441RecruitingPhase 1
Drug interaction study in healthy volunteers
This trial tests two experimental drugs in healthy adults to see how they interact with each other and to check their safety. It involves taking the drugs in a specific order over multiple days.
Seoul, Gwanak-guAges 19 years+ - NCT07057726Enrolling by invitationPhase 1
Safety study of SSS39 injection in healthy Chinese adults
This trial tests a new injection called SSS39 in healthy people to see if it's safe and how the body processes it. You must be between 18 and 45, in good health, and not have certain medical conditions or use specific medications.
BeijingAges 18–45 - NCT06879444Enrolling by invitation
Core strength and pelvic floor in Sjogren's
This study looks at how core stability and pelvic floor muscles work in people with primary Sjogren's syndrome. If you have this condition, the results may help doctors understand changes in muscle function.
Denizli, DenizliAges 18–65 - NCT06533878Enrolling by invitationPhase 1
Safety of HY209 in healthy volunteers
This study tests the safety and tolerability of a new medication called HY209 in healthy volunteers. It helps researchers understand how the drug affects the body and if it causes any side effects.
Anyang-si, Gyeonggi-doAges 19–45 - NCT06504043Enrolling by invitationPhase 1
Safety study of HST101 in healthy Chinese adults with high cholesterol
This study tests a new drug, HST101, to see if it is safe for healthy Chinese people with high cholesterol. It is an early-phase trial, so it focuses on safety first.
Chengdu, SichuanAges 18–55 - 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+ - 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 - NCT05162638Enrolling by invitation
Immune study in MS and healthy adults using a special tube
This study compares immune (defense system) “profiles” between people with multiple sclerosis (MS) and healthy volunteers. It involves a thoracic duct cannulation procedure and several MRIs to see how immune cells behave and whether a specific immune pattern is different in MS.
Philadelphia, PennsylvaniaAges 18–40 - NCT04885959Enrolling by invitation
Study how an Asian diet affects gut bacteria and allergy risk in pregnancy
This study looks at whether eating a traditional Asian diet during pregnancy changes gut bacteria and body chemistry in a way that may lower (or change) a baby’s risk of developing allergies. You would follow the diet during pregnancy and be tracked after delivery.
Kota Bharu, KelantanAges 18–40 - NCT04790890Enrolling by invitation
Scan the eye during surgery to measure normal eye tissue
This study uses an imaging scan called optical coherence tomography (a non-painful light scan) during surgery to map what “normal” eye tissue looks like. It may help improve how eye specialists assess eyes in the future.
Nashville, TennesseeAges 18 years+ - NCT04474015Enrolling by invitation
Testing a brain-stimulation setup for comfortable sleep
This study tests how comfortable a noninvasive brain stimulation method (putting small electrodes on the head) feels during sleep. It’s looking for healthy adults who fit specific sleep and health limits so results can be compared cleanly.
Ages 18–39 - NCT04286464Enrolling by invitation
Study how pregnancy affects airway inflammation in babies
This study looks at how different pregnancy and birth factors may contribute to airway inflammation in infants who wheeze or have lung conditions. It may help researchers understand why some babies get ongoing breathing problems and how early influences could be linked.
BernAges Any age - NCT03728088Enrolling by invitation
Study of surgical trainees’ and staff’s non-technical skills
This study looks at “non-technical” skills (things like communication, decision-making, and teamwork) and how they relate to surgical experience. It may help training hospitals improve how they select and support people learning or working in surgery.
Ages Any age
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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.