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Healthy Adults clinical trials
Every US clinical trial registered for Healthy Adults — phase mix, recruiting status, and the sponsors running them, straight from the NIH ClinicalTrials.gov registry.
34 US clinical trials · 15 currently recruiting
The research picture
Healthy Adults has 34 registered US clinical trials, 15 of them open to new participants right now — about 44% of the total.
- 15
- recruiting participants now
- 44%
- of trials open to enrollment
- 0
- in Phase 3–4 (later-stage)
- 3
- top sponsor: Pfizer
Counts reflect the public ClinicalTrials.gov registry as last mirrored by PlainTrial. Status and phase are reported by each study's sponsor. This is reference information, not medical advice.
Active & Recent Trials
A Study to Learn About mRNA Vaccines Against Influenza in Adults
Pfizer
NCT07431853
The Brain Processes Underlying Speech Motor Learning and Speech Production
Arizona State University
NCT05918679
A Study of EDG-15400 in Healthy Adults
Edgewise Therapeutics
NCT07177066
Using Bitter Taste Receptor Blockers to Improve the Palatability of Pediatric Medicines
Monell Chemical Senses Center
NCT06929455
Intracardiac Flow Assessment in Cardiac Amyloidosis
Mayo Clinic
NCT05379101
Effect of Acute Nitrate Supplementation on Vascular Function in Hispanic, Black and White Population
University of Texas at Austin
NCT05188079
Effects of Breathing Training and Nitrate on Exercise at Simulated Altitude
Embry-Riddle Aeronautical University
NCT07216755
Health Properties of Pecan Nut Consumption
University of California, Davis
NCT07227259
Pilot Study of the Entarik System With Advanced Functionality in Health Adults
Gravitas Medical
NCT06660758
Phase 1a Single Ascending Dose Study of MIB-725 in Healthy Adults
Metro International Biotech
NCT06815991
Tracing the Metabolic Flux of Orally Administered NAD+ Precursors
Metro International Biotech
NCT06882096
Safety and Efficacy of Klotho and Follistatin Gene Therapy
Minicircle
NCT07285629
Phase 2 Seattle Dietary Biomarkers Development Center
Marian Neuhouser
NCT06656338
A Study to Learn About How the Study Medicines Called Itraconazole and Probenecid Change How the Body Processes PF-07220060
Pfizer
NCT07160738
Safety and Efficacy of Injectable Klotho Plasmid Gene Therapy in Humans
Minicircle
NCT07216781
The Healthy Cookie Study: Understanding How Healthy Cookies Affect Fat in the Blood,
Ohio State University
NCT02841618
The Healthy Cookie Energy Study: Understanding How Healthy Cookies Affect Mitochondrial Biology
Ohio State University
NCT04677920
Placebo-Controlled, Single and Multiple Ascending Subcutaneous Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of BMS-986089 in Healthy Adult Subjects
Hoffmann-La Roche
NCT02145234
Breathing Interventions for Relaxation: Dosing Through Extended Exhale
Vanderbilt University Medical Center
NCT02870868
Dietary Supplement With and Without a Probiotic and/or Antibiotic
Prolacta Bioscience
NCT05141903
Safety, Tolerability, and Pharmacokinetics of Oral EC5026 in Healthy Subjects
EicOsis Human Health
NCT04228302
Stimulating the Social Brain
The University of Texas at Dallas
NCT03374631
A Study to Determine the Effect of KP-001 on Metformin and Midazolam Pharmacokinetics and the Effect of Clarithromycin on KP-001 Pharmacokinetics in Healthy Adult Participants
Kaken Pharmaceutical
NCT06227832
The Dose Response of Prednisone on Biochemical and Clinical Makers in Adult Healthy Volunteers
Pfizer
NCT02767089
A Study to Explore the Effect of Food Before a Single Dose of Sitravatinib
Mirati Therapeutics
NCT04800614
Investigating Accelerated Learning and Memory in Healthy Subjects Using a Face Name Memory Task
The University of Texas at Dallas
NCT03309072
Low Intensity Focused Ultrasound Pulses (LIFUP) to Modulate Pain
Medical University of South Carolina
NCT04339972
Effect of Orally Delivered Phytochemicals on Aging and Inflammation in the Skin
Johns Hopkins University
NCT03289832
Impact of Itraconazole on the Pharmacokinetics and Safety of Dazucorilant in Healthy, Adult Participants
Corcept Therapeutics
NCT06495944
Sweat and Gas Sensor for Healthy Skin and Atopic Dermatitis
Northwestern University
NCT03874039
Safety, Tolerability, Pharmacokinetics and Food Effects of Oral EC5026 in Healthy Subjects
EicOsis Human Health
NCT04908995
A Clinical Trial of CoFactor Formulations and Leucovorin Administered Intravenously in Healthy, Adult Subjects.
Mast Therapeutics
NCT00663481
Prospective Tolerability Assessment of a Probiotic Dietary Supplement
Metagenics
NCT04044144
Sweat Sensors for Athletic Performance
Northwestern University
NCT03566381
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 14 |
| Phase 2 | 1 |
Top Sponsors
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Reading the Healthy Adults Trial Landscape
ClinicalTrials.gov lists 34 US studies indexed under Healthy Adults, and 15 of those are currently open to recruitment — roughly 44% of the total volume on the registry. That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.
The phase distribution for Healthy Adults shows 0 late-stage studies (Phase 3 and Phase 4 combined) alongside 15 earlier-phase entries (Phase 1 through Phase 2). Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.
Top sponsor activity for Healthy Adults is led by Pfizer with 3 indexed trials, alongside 9 other organizations in the top contributor list. The list on this page surfaces up to 34 of the most relevant recent and active entries, ordered with recruiting studies first so practical options are visible. All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation — eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.
Frequently Asked Questions
How many clinical trials are there for Healthy Adults?
PlainTrial tracks 34 US clinical trials for Healthy Adults, of which 15 are currently recruiting participants. Data sourced from ClinicalTrials.gov.
How do I find a recruiting trial for Healthy Adults?
Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.
Is this data current?
Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.
Related
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.
Read our methodology — how this data is sourced, computed, and verified.
Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.