Condition
Healthy Adult Participants clinical trials and research
As of November 12, 2026, Find a Trial lists 56 Healthy Adult Participants clinical trials that are recruiting, at sites in 24 countries (most in United States (21), United Kingdom (5), China (5)). 7 were first registered in the last 30 days. By phase: Phase 1 (19), Phase 1/2 (2), Early Phase 1 (2), Phase 4 (1). The most active sponsors are Academisch Ziekenhuis Maastricht (2), Washington University School of Medicine (2), Zoe Global Limited (2). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 56Clinical trials
- 7New in 30 days
- 24Countries
Newest Healthy Adult Participants clinical trials
All recruiting trials (56)
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How age affects germinal center responses after flu and rabies vaccines
Researchers will test how the immune system responds to flu and rabies vaccines in younger adults (18–40) and older adults (65+).
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Magnetic field maps with NV sensors for non-invasive heart measurements
This study tests whether diamond-based NV magnetometers can non-invasively detect and map the heart's magnetic field in healthy adults.
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Methylation analyses using home-based self-sampling in women with and without gynecological disease
This study tests whether self-collected urine and vaginal samples can reveal DNA methylation markers that distinguish people with gynecological (pre-)cancers from cancer-free controls.
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Omega-3 status in healthy adults: comparing different fish-oil and algae-oil products
This study tests whether various fish-oil and algae-oil products can raise the Omega-3 Index in healthy adults who don’t eat much fatty fish.
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A safe, carefully dosed test of TBD11 in healthy adults
This phase 1 study tests TBD11 in healthy adults to see if it is safe and tolerable and to understand how it behaves in the body, including how it interacts with other medicines.
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Fosmanogepix in healthy adults: how it may interact with other drugs and heart rhythm
This study tests whether fosmanogepix (and its active form manogepix) changes how other medicines work in healthy adults.
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Slow-paced breathing to boost heart rate variability in healthy young adults
This study tests whether a 6-week slow-paced breathing program can improve heart rate variability and lower perceived stress in healthy young adults with dysfunctional breathing patterns.
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Nutrition app test to improve mindful eating and dietary variety in adults
This study tests whether a smartphone app can help adults eat more mindfully and diversify their diet in a low- and middle-income country.
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Biofortified eggs to boost vitamin D in healthy adults
Aiming to see if eating eggs enriched with vitamin D3 or its active form can raise vitamin D levels in healthy adults with low vitamin D.
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Can seven tasks help distinguish schizophrenia and schizoaffective disorder from healthy people
The study tests seven cognitive tasks to see if they can tell apart people with schizophrenia or schizoaffective disorder from healthy adults and predict symptoms like hallucinations and delusions.
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Egg intake and gut health, HDL, and immune markers in adults
This study tests whether daily egg whites or whole eggs affect gut microbiome, HDL function, metabolism, and immune profiles in adults with a range of BMIs.
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Anchoring and Postural Stability in Adults
This study tests how different standing positions, including inward and outward leg anchoring, affect balance in healthy adults aged 18–50.
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Single-dose safety test of ACC085 in healthy Chinese adults
This first-in-human study tests a single subcutaneous dose of ACC085 to see if it is safe and well tolerated in healthy Chinese adults.
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Isolated Gastrocnemius Tightness and Tactile Sensitivity in Adults
This study tests whether adults with isolated gastrocnemius tightness differ from those without in plantar tactile sensitivity and balance-related postural control.
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BGB-43395 drug interaction study in healthy adults
This study tests if the drug BGB-43395 changes how other medicines are processed in healthy adults.
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SAB01 first-in-human dose study in healthy adults
This Phase 1 study tests the safety and how SAB01 behaves in the body after single doses given under the skin or through a vein to healthy adults.
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Oxytocin effects on fairness and prosocial choices in healthy adults
This study tests whether intranasal oxytocin changes how healthy adults view fairness and act prosocially in economic games.
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AdaptDx Pro vs AdaptDx: Rod Intercept Time in Healthy Adults
This study checks if the AdaptDx Pro and the standard AdaptDx give similar Rod Intercept times in healthy adults with normal vision.
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Safety and how the body handles HMB-003 in healthy adults
A first-in-human test to see if HMB-003 is safe in healthy adults and how it behaves in the body compared with a placebo.
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First‑in‑human test of ARD001 in healthy adults and people with hemophilia A
This study tests ARD001 to see if it is safe and tolerable in healthy adults and in people with hemophilia A, using a single dose (Phase 1) and potentially repeated doses (Phase 2) if results look good.
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Snack bars to see if hunger and gut health change with a high-fibre option
Healthy adults will try a high-fibre snack bar vs a standard snack bar for 5 weeks to see if hunger and gut health change.
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Alpelisib Challenge Test to measure insulin secretory capacity
Researchers will test a new approach to measure how much insulin the body can produce in people at various weights and with or without insulin resistance, using alpelisib around a meal test.
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Does a high-fibre snack bar reduce post-meal hunger compared with a typical UK snack bar?
This study tests whether a high-fibre plant-based snack bar can reduce hunger after eating, compared with a typical UK snack bar, in healthy adults.
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At‑home urine sampling with smartphone imaging to study environmental microplastics exposure
This study tests whether healthy adults can collect and image urine samples at home using a smartphone app over about 12 weeks.
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Safety and tolerance of ADB116 for Injection in healthy adults
This Phase 1 study tests whether a single IV dose of ADB116 is safe and well tolerated in healthy Chinese adults.
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Olive leaf extract plus endurance training to boost muscle performance in healthy adults
This study tests whether taking olive leaf extract while doing endurance training helps healthy adults improve their exercise performance more than training with a placebo.
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Pharmacokinetics of D-2570 in people with liver impairment and in healthy volunteers
This study tests how D-2570 moves through and affects the body in adults with liver impairment compared to those with normal liver function.
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Ultrasound-guided neuromodulation to boost squat speed in CrossFit athletes
A randomized, blinded study tests whether a targeted ultrasound-guided needle-based neuromodulation near the transversus abdominis can improve squat velocity in healthy CrossFit practitioners.
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NS-079 safety and pharmacokinetics in healthy adults
This study tests NS-079, its main metabolite NS-079-M1, and placebo to see if they are safe and how they behave in healthy adults.
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Oil Pulling Mouthwash for whitening teeth in adults
This study tests whether GuruNanda Oil Pulling oral rinse can whiten teeth better than a competitor’s whitening mouthwash or a water-based rinse in healthy adults with tooth stains.
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Blood-brain PET test with a new tracer for alpha-synuclein in PD, MSA, and healthy adults
This early-phase study tests the safety of a new PET tracer, [11C]MODAG-005, in people with Parkinson’s disease, multiple system atrophy, and healthy adults to see if it can image alpha-synuclein in the brain.
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Alcohol sensitivity in healthy adults aged 65–80 who drink
This study tests how older adults who regularly drink respond to a moderate amount of alcohol, to see how their cognition and brain activity may change.
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Navenibart: comparing vial-and-syringe vs autoinjector in healthy adults
This study tests whether two ways of giving navenibart (vial with syringe vs autoinjector) produce similar blood levels and safety in healthy adults.
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taVNS for nausea in healthy adults
This study tests whether transcutaneous auricular vagus nerve stimulation (taVNS) can reduce induced nausea in healthy adults, compared with a sham treatment.
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Caudal ear nerve stimulation to test gut movement in healthy adults
This study tests whether transcutaneous auricular vagus nerve stimulation can influence upper gastrointestinal movement in healthy adults who participate in a randomised, crossover setup.
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Artichoke by-product supplement: testing how the body absorbs polyphenols
This study tests how well polyphenols from artichoke by-product capsules get absorbed, processed, and excreted in healthy adults.
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Sensory Engagement and Activation During Noninvasive Stimulation in Healthy Adults
This study tests whether noninvasive electrical or ultrasound stimulation can produce measurable brain and autonomic responses in healthy adults.
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Overcoming Barriers to Focused Brain Stimulation with Transcranial Temporal Interference
This study tests a non-invasive brain stimulation method called transcranial temporal interference stimulation (TIS) to see if it can reliably influence motor cortex activity in healthy adults.
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Acute effects of Jägerbombs with energy drinks during a binge for healthy adults
This study tests whether mixing Jägermeister with an energy drink during a binge affects intoxication, mood, coordination, and sleepiness compared with alcohol alone in healthy adults who regularly drink caffeinated beverages.
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NHL907 safety and dosing study in healthy adults
This study tests how NHL907 behaves and is tolerated when given in several oral doses to healthy adults to see if it is safe and tolerable.
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Effect of BV100 on polymyxin B levels in healthy adults
This study will test whether giving BV100 changes how polymyxin B behaves in the bodies of healthy adults.
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Synbiotic senior milk powder to test gut health and wellness in healthy adults
This study tests whether a synbiotic senior milk powder changes gut microbiome and health-related measures in healthy adults aged 40–65.
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Transcranial random noise stimulation and language task performance in healthy adults
This test sees if a mild, non-invasive scalp electrical stimulation called transcranial random noise stimulation can change how healthy young and older adults perform language tasks.
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Regen robot for assisting treadmill walking in healthy adults
We will test whether the Regen gait robot is safe, easy to use, and can copy a therapist's walking movements in healthy adults walking on a treadmill.
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Thumbs-up for TI-TES during sleep: testing thalamic stimulation to boost sleep spindles in healthy adults
We’re testing a non-invasive brain stimulation method during sleep to see if it can increase sleep spindle activity in healthy adults.
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RIG-101 for healthy adults and people with asthma
This trial will test whether RIG-101 is safe, well tolerated, and can protect healthy adults and adults with asthma from a controlled viral exposure.
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CPV-104 safety and drug processing in healthy adults and people with C3 glomerulopathy
This trial tests whether CPV-104 is safe, how the body processes it, and whether the immune system reacts to it in healthy adults and adults with C3 glomerulopathy.
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Turkish validation of a questionnaire to measure parents' knowledge and attitudes about preventing toxic chemical harm to children
This project will test a Turkish questionnaire for parents and future parents to measure their knowledge and attitudes about preventing children's exposure to toxic chemicals.
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MTX-439 safety test in healthy adults and adults with diabetic kidney disease
This phase 1 study tests MTX-439 in healthy adults and adults with diabetic kidney disease to see if it is safe and how the body handles it.
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[18F]GATT-44 PET scan to image the brain's GABA transporter (GAT-1).
This will test whether the experimental PET tracer [18F]GATT-44 can safely image the brain's GAT-1 and how the tracer behaves in healthy adults.
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Daily kimchi versus cabbage for gut health in healthy adults
This will see if eating kimchi daily changes gut bacteria and blood markers of gut and cardiometabolic health in healthy adults.
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WearLinq eWave ECG patch usability in adults
This study tests how easy it is for adults to use the WearLinq eWave ECG patch and its accompanying app over a week (with some participants trying it for 30 days).
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Testing how SIM0270 interacts with itraconazole, rifampin, and midazolam in healthy Chinese adults
This test will see if SIM0270 changes blood levels of itraconazole, rifampin, or midazolam in healthy Chinese adults.
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Safety and how the body handles ALXN2230 in healthy adults
This test gives single under-the-skin doses of ALXN2230 to healthy adults to see if the medicine is safe and how the body processes and responds to it.
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Phase 1 testing of ADX-626 in healthy adults
This trial will test whether ADX-626 is safe and how the body processes it in healthy adults aged 18 to 45.
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L608 liposomal inhaled iloprost in healthy adults
This trial will test single ascending inhaled doses of L608 (15–30 μg) in healthy adults to see if it is safe and how the body handles it.
Related topics
Quick answers
How many Healthy Adult Participants clinical trials are recruiting right now?
56, as of November 12, 2026. 7 of them were first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 24 countries. The most sites are in United States (21 trials), United Kingdom (5 trials), China (5 trials), Netherlands (4 trials), Spain (4 trials). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 1: 19, Phase 1/2: 2, Early Phase 1: 2, Phase 4: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.