Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Healthy Subjects: early-phase trial registry
14 of 70 indexed Healthy Subjects trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #198 of 28,707 conditions by registered trial count.
70 US clinical trials · 14 currently recruiting · #198 of 28,707 conditions by registered trial count
Healthy Subjects: 70 US clinical trials tracked, 14 recruiting.
Healthy Subjects is the subject of 70 registered US clinical trials on ClinicalTrials.gov, 14 of them currently open to new participants. 1 are in Phase 3-4 (later-stage) and 50 in Phase 1-2 (earlier-stage). The most active sponsor is GlaxoSmithKline, running 7 of these trials.
Enrollment posture brief
Registry condition healthy-subjects
OPEN 14 | RECR 20% | LATE 1 | EARLY 50 | RANK #198 | SPON 7
Volume-matched condition peers
Nearest open-share peer: Accelerated Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive (20% recruiting · 10 trials)
Healthy Subjects lists 14 open slots (20% of 70 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 Subjects 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 Subjects is recruiting below its size-band peers.
14 of 70 indexed trials (20%) 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 Subjects trials is spread across many organizations.
GlaxoSmithKline accounts for 7 of 70 trials (10%). 48 distinct sponsors appear on at least one study for this condition label.
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Most Healthy Subjects trials plan to enrol fewer than 100 people.
Median target enrolment is 32 among the 70 trials that report a genuine target (sentinel values excluded). 58 of those (82.9%) plan for fewer than 100 participants.
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Healthy Subjects research is mostly interventional.
65 interventional and 5 observational studies make up this index (92.9% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
70 total, page 1 of 2
Oral Bacteria and Immune System Problems Involved in Gum Disease (Periodontitis)
National Institute of Dental and Craniofacial Research (NIDCR)
NCT01568697
In-Person Recruitment of Individuals to the Alzheimer's Prevention Trial (APT) Webstudy
University of Southern California
NCT07218120
Auditory Prediction and Error Evaluation in the Speech of Individuals Who Stutter
Arizona State University
NCT06181149
Prospective Evaluation of Next Generation CT Reconstruction (NextGenIR)
National Heart, Lung, and Blood Institute (NHLBI)
NCT02417714
The Short-term Verbal Memory Endophenotype for Developmental Language Disorder Language Disorder
Father Flanagan's Boys' Home
NCT06968169
Echography Study_Anthropometric Measurements
Crossject
NCT06279689
A Recovery and Lifespan Study Using INTERCEPT Red Blood Cells Prepared Using the INTERCEPT Blood System for RBCs With AS-1
Cerus Corporation
NCT07015437
Single-tracer Multiparametric PET Imaging
University of California, Davis
NCT06014515
Optimizing Ultrasound-induced Anti-inflammation in Human Subjects
University of Virginia
NCT05685108
Avocado and Postprandial Responses
University of Vermont Medical Center
NCT06818032
Phase I Study of ICP-332 in Healthy Subjects
InnoCare Pharma
NCT06530966
Phase 1 Study of Intravaginal KB15A
ZabBio
NCT07222020
A Study to Investigate HLA-G Targeted Exosome (SOB100) in Healthy Subjects
Shine-On Biomedical Co.
NCT07219940
Radiocaine Safety Study In Healthy Human Subjects
Lutroo Imaging
NCT07081217
Cerebral Cortical Influences on Autonomic Function
David Levinthal
NCT03869372
A Music and Visual Arts Digital Intervention in Teenagers to Promote Healthy Engagement With Social Media.
New York University
NCT06402253
Lysine-specific Demethylase 1 and Salt-sensitivity in Humans
Brigham and Women's Hospital
NCT03029806
Training Effects on Fuel Metabolism
University of Minnesota
NCT02150889
Metabolic Responses to Spermidine Supplementation.
Chrysea Labs Lda
NCT05459961
Effect of Stimulation on the Vagus Nerve
Indiana University
NCT04206540
Methemoglobin Concentration in High Dose Inhaled Nitric Oxide
Massachusetts General Hospital
NCT05612074
Autoinjector Device Assessment Study
AstraZeneca
NCT02349802
Study Evaluating 13-valent Pneumococcal Conjugate Vaccine (13vPnC) in Healthy Children Aged 15 Months to 17 Years
Pfizer
NCT00761631
A Study of PF-06410293 Following Subcutaneous Administration Using A Prefilled Syringe Or A Prefilled Pen In Healthy Adult Subjects
Pfizer
NCT02572245
Brain-Computer Interface and Mind-Body Awareness Training
University of Minnesota
NCT02074722
Study to Evaluate the Respiratory Safety of Lemborexant in Adult and Elderly Healthy Subjects and Adult and Elderly Subjects With Mild Obstructive Sleep Apnea
Eisai
NCT03471871
A Phase 1 Study to Evaluate the Safety of MEDI7814 in Adult Volunteers
MedImmune
NCT01544361
hCAP18 Levels and Vitamin D Deficiency in Healthy Subjects
Massachusetts General Hospital
NCT00742235
Phase 1 Study of MGD010 in Healthy Subjects
MacroGenics
NCT02376036
A Phase 1, Open-Label, 10 Day Safety Study
Trius Therapeutics LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
NCT01623401
A Bioequivalence Study Testing Two Formulations of Sotagliflozin in Healthy Male and Female Subjects Under Fasted Conditions
Sanofi
NCT03776227
Crossover Study to Evaluate the Effect of Lemborexant Versus Placebo and Zolpidem on Postural Stability, Auditory Awakening Threshold, and Cognitive Performance in Healthy Subjects 55 Years and Older
Eisai
NCT03008447
A Study to Determine the Effect of a High-Fat Meal on the Rate and Extent of E2006 Absorption in Healthy Subjects
Eisai
NCT02089412
Study of KBP-7072 in Healthy Male and Female Subjects
KBP Biosciences
NCT05507463
The Effects of Coffee
American University
NCT00336271
Study to Assess the Pharmacokinetic Drug-Drug Interactions of Lemborexant When Coadministered With an Oral Contraceptive, Famotidine, or Fluconazole in Healthy Subjects
Eisai
NCT03451110
First-in-human Study to Assess Safety and Tolerability of a Single Subcutaneous Dose of SAR441255 in Lean to Overweight Subjects
Sanofi
NCT04521738
A Study to Assess Recovery and Survival of Radiolabeled Apheresis Platelet Components Treated With the INTERCEPT Blood System for Platelets With LED Illuminator.
Cerus Corporation
NCT06697223
Single and Multiple Dose Asian Bridging Study
Eisai
NCT01251731
Pea vs Whey Protein Supplementation With Resistance Training on Young Adults' Strength, Body Composition, and Metabolic Parameters
Texas Woman's University
NCT07420933
Bioavailability and Food Effect Study of 3 Types of Carisbamate
SK Life Science
NCT04520360
Drug-drug Interactions Between AZD4205 and Itraconazole/Carbamazepine
Dizal Pharmaceuticals
NCT05486949
A Phase 1 Study of CDX-0159
Celldex Therapeutics
NCT04146129
A Study to Evaluate a Single Intravenous (IV) Dose Using a New Manufactured Clone and Single Ascending Doses of Subcutaneous (SC) Injections
Astellas Pharma Global Development
NCT02150070
Safety and Efficacy of Trans Sodium Crocetinate (TSC) in Enhancing Tissue Oxygen Levels in Healthy Volunteers
Diffusion Pharmaceuticals
NCT04808622
Study to Evaluate the Effect of a Single Oral Dose of MT-7117 on the QT/QTc Interval in Healthy Subjects
Tanabe Pharma America
NCT05241535
A Study to Compare to the Pharmacokinetic Profile of Two Paracetamol Formulations
GlaxoSmithKline
NCT01476189
Pharmacokinetic Study Investigating the Extent of Paracetamol Absorption From a New Formulation of Paracetamol Compared With Panadol®
GlaxoSmithKline
NCT01540734
Pharmacokinetic Study Investigating the Extent of Paracetamol Absorption From a New Formulation of Paracetamol Compared With Panadol® Extend
GlaxoSmithKline
NCT01540721
A Multicenter, Open-label Study to Determine the Effects of Lacosamide on Sleep in Healthy Subjects
UCB Pharma
NCT01530386
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 47 |
| Phase 2 | 3 |
| Phase 3 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Healthy Subjects records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Healthy Subjects 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 Subjects page
70 registered trials, 14 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 14 Healthy Subjects trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- GlaxoSmithKline sponsors the most Healthy Subjects trials on record, review their full trial history before evaluating a specific study. See GlaxoSmithKline'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 Subjects condition card totals 70 registered trials; most-linked intervention Placebo; top US site state Maryland. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.