Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Healthy Adults: early-phase trial registry
15 of 34 indexed Healthy Adults trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #451 of 28,707 conditions by registered trial count.
34 US clinical trials · 15 currently recruiting · #451 of 28,707 conditions by registered trial count
Healthy Adults: 34 US clinical trials tracked, 15 recruiting.
Healthy Adults is the subject of 34 registered US clinical trials on ClinicalTrials.gov, 15 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 15 in Phase 1-2 (earlier-stage). The most active sponsor is Pfizer, running 3 of these trials.
Enrollment posture brief
Registry condition healthy-adults
OPEN 15 | RECR 44% | LATE 0 | EARLY 15 | RANK #451 | SPON 3
Volume-matched condition peers
Nearest open-share peer: Suicide (44% recruiting · 93 trials)
Healthy Adults lists 15 open slots (44% of 34 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Healthy Adults on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Healthy Adults is recruiting above its size-band peers.
15 of 34 indexed trials (44.1%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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Sponsorship of Healthy Adults trials is spread across many organizations.
Pfizer accounts for 3 of 34 trials (8.8%). 26 distinct sponsors appear on at least one study for this condition label.
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Most Healthy Adults trials plan to enrol fewer than 100 people.
Median target enrolment is 37 among the 34 trials that report a genuine target (sentinel values excluded). 27 of those (79.4%) plan for fewer than 100 participants.
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Healthy Adults research is mostly interventional.
30 interventional and 4 observational studies make up this index (88.2% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
34 total, page 1 of 1
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
Named interventions
Most-linked intervention names on Healthy Adults records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Healthy Adults trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Healthy Adults page
34 registered trials, 15 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 15 Healthy Adults trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Pfizer sponsors the most Healthy Adults trials on record, review their full trial history before evaluating a specific study. See Pfizer's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Healthy Adults condition card totals 34 registered trials; most-linked intervention High Linoleic Acid Healthy Cookies; top US site state Texas. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.