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
- NCT06877611RecruitingPhase 1
Testing the drug S-4321 in healthy volunteers for safety
This trial tests a new drug called S-4321 to make sure it's safe and well-tolerated in healthy people. You would take the drug and have regular check-ups to see how your body handles it.
Bayswater, VictoriaAges 18–65 - 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 - NCT06935682RecruitingPhase 1
Safety study of Y-4 tablets in healthy volunteers
This trial tests the safety and how the body processes a new medicine called Y-4. Healthy adults ages 18 to 45 can join to help researchers understand how the drug works and if it has any side effects.
Beijing, Beijing MunicipalityAges 18–45 - NCT07201584RecruitingPhase 1
Bioavailability study of two torasemide 10 mg tablets in healthy adults
This study compares how two different 10 mg tablets of the diuretic torasemide are absorbed by the body in healthy adults who have not eaten. It helps researchers see if the tablets work the same way.
Almaty, Ili District, Otegen Batyr SettlementAges 18–55 - 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 - NCT07196189Recruiting
Fecal transplant for eating disorders
This study tests whether a fecal microbiota transplant (transferring healthy donor stool into your gut) can help treat eating disorders like anorexia, bulimia, or binge eating disorder. It is for women ages 18 to 50 who have not had antibiotics in the last 3 months.
RouenAges 18–50 - NCT06255626RecruitingPhase 1/Phase 2
New COVID-19 booster vaccine study
This trial tests a new type of COVID-19 booster vaccine that targets a protein to help your immune system. It's for people who already had a primary vaccine series and at least one mRNA booster, with the last booster at least 6 months ago.
CréteilAges 18–84 - NCT07184502RecruitingPhase 1
Testing a new injection for weight loss in healthy and overweight adults
This trial tests an investigational injection called ZT003 to see if it is safe and how the body processes it. It is for healthy volunteers or those who are overweight or obese, to help understand how this treatment might work.
Brisbane, QueenslandAges 18–65 - NCT06945614RecruitingPhase 1
Xenon gas for brain inflammation safety study
This study tests an inhaled gas called xenon to see if it can safely reduce brain inflammation. The study is for healthy volunteers aged 55-75 to check safety and early signs of benefit.
Boston, MassachusettsAges 55–75 - NCT06944782Recruiting
Can mouth muscle tests help diagnose sleep apnea?
This study tests a new device that measures muscle activity in your mouth to diagnose sleep apnea—without needing to spend the night in a lab. If you've already had a sleep test showing either no sleep apnea or moderate to severe sleep apnea, and you're not using CPAP daily, you may be able to help.
San Diego, CaliforniaAges 18–80 - NCT07182500RecruitingPhase 2
Can probiotics protect your gut while traveling?
This trial tests whether taking a probiotic supplement can help keep your gut bacteria healthy during a short trip abroad. It's a good fit if you are generally healthy and planning a vacation or business trip under a week.
Huangpu, Shanghai MunicipalityAges 18–65 - NCT07172425Recruiting
Testing nitrate-enriched foods for blood vessel health
This study tests whether adding nitrate (a natural compound found in leafy greens and beets) to foods can boost the body’s levels of nitric oxide, which helps blood vessels relax and improve blood flow. If you’re a healthy adult, you may be able to join to help researchers learn how diet affects your blood vessels.
LondonAges 18–60 - NCT05395624RecruitingPhase 1/Phase 2
Safety imaging study of a PET tracer in ALS, Alzheimer, MS, Parkinson
This early-phase study tests the safety of a radioactive tracer (“18F-OP-801”) and how the tracer moves through the body (biodistribution) in people with ALS, Alzheimer’s disease, multiple sclerosis, Parkinson’s disease, and in healthy volunteers. It also measures how the body processes the tracer (“pharmacokinetics”) to support future studies.
San Francisco, CaliforniaAges 18–80 - NCT07157358Recruiting
Hypnosis exercises for mental health in school children
This trial tests if daily online hypnosis exercises can improve mental health in primary school children and prevent future issues. Children listen to a 20-minute recording each day to see if it helps them feel better.
LeidenAges 9–12 - NCT07163182RecruitingPhase 1
Safety study of nasal CHF6467 in healthy volunteers
This study tests a new medicine called CHF6467 given as a nasal spray. It looks at how safe the medicine is, how it is absorbed and removed from the body, and what side effects it might cause. Healthy volunteers aged 18 to 55 can take part.
SofiaAges 18–55 - 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+ - NCT07161180RecruitingPhase 1
Study of PBK_M2301 in Healthy Adults
This trial tests how a new medicine, PBK_M2301, moves through the body in healthy adults. It aims to find out how the drug is absorbed and eliminated to guide future studies.
Seoul, SeoulAges 19–65 - NCT07156916RecruitingPhase 1
Tamsulosin tablet comparison study in healthy men
This trial tests how a new tamsulosin tablet (used for prostate problems) compares to the standard drug in healthy men. You will take one dose and have blood samples taken to measure the drug levels.
Yerevan, Ankuk RegionAges 18–45 - NCT07151859Recruiting
Skin hydration trial for face, neck, or chest
This study tests a polynucleotide-based injection to improve skin hydration in one area of the face, neck, or chest. It may be an option if you have healthy skin and are looking for a non-surgical way to boost moisture.
Naples, ItalyAges 18–70 - NCT07145970Recruiting
Standardizing tests for spatial neglect
This trial aims to standardize a test for spatial neglect, a condition where people ignore one side of space after a brain injury. Healthy volunteers will perform simple cancellation tests to help set normal reference values.
GarcheAges 20–89 - NCT07137429Recruiting
Platelet donor long-term health study
This study looks at healthy adults who donate platelets to understand how platelets change over time. You must fast before blood draws and avoid certain medicines like aspirin or ibuprofen for a week before each visit.
Bethesda, MarylandAges 18–100 - NCT07144176RecruitingPhase 1
Comparing two drugs in healthy volunteers
This trial compares two similar drugs (DWJ1511 and DWC202501) to see how they are processed by the body and how safe they are. It is for healthy volunteers to help ensure the drugs work the same way.
SeoulAges 19–64 - NCT07143318RecruitingPhase 1
First-in-Human study of KLA578-1 for injection in healthy volunteers
This trial tests a new investigational drug for the first time in people. It will study how the drug is processed by the body in healthy volunteers. If you are a generally healthy adult, you may be able to help with this important early research.
Changsha, HunanAges 18–45 - NCT04256330Recruiting
Testing how diet and health affect inflammation recovery
This study looks at how “cardiometabolic health” and inflammation signals change, and how quickly they improve (“resolution”). It may help people whose bodies have ongoing inflammation, by testing approaches that support healthier recovery.
Gothenburg, Västra Götaland CountyAges 18–65
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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.