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ClinicalTrials.gov 225 recruiting now early-phase tilt #2 of 28,963 conditions

Healthy: early-phase trial registry

225 of 1,096 indexed Healthy trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #2 of 28,963 conditions by registered trial count.

1,096 US clinical trials · 225 currently recruiting · #2 of 28,963 conditions by registered trial count

Healthy: 1,096 US clinical trials tracked, 225 recruiting.

Healthy is the subject of 1,096 registered US clinical trials on ClinicalTrials.gov, 225 of them currently open to new participants. 43 are in Phase 3-4 (later-stage) and 546 in Phase 1-2 (earlier-stage). The most active sponsor is Eli Lilly and Company, running 55 of these trials.

Open enrollment, early-phase tilt

Healthy has 1,096 registered US clinical trials, 225 of them open to new participants right now, about 21% of the total.

225
recruiting participants now
21%
of trials open to enrollment
43
in Phase 3-4 (later-stage)
55
top sponsor: Eli Lilly and Company

Corpus placement: #2 of 28,963 conditions by registered trial count on ClinicalTrials.gov-derived indexes. Registry reference only, not medical advice.

Key findings

What ClinicalTrials.gov does not surface for Healthy on its own pages , computed from the registry mirror as of 2026-07-11. Each line carries its own denominator so it can be quoted as it stands.

  1. Healthy is recruiting below its size-band peers.

    225 of 1,096 indexed trials (20.5%) are open to enrollment, against a 37.2% average across 135 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Healthy trials is spread across many organizations.

    Eli Lilly and Company accounts for 55 of 1,096 trials (5%). 429 distinct sponsors appear on at least one study for this condition label.

  3. Most Healthy trials plan to enrol fewer than 100 people.

    Median target enrolment is 40 among the 1,091 trials that report a genuine target (sentinel values excluded). 851 of those (78%) plan for fewer than 100 participants.

  4. Healthy research is mostly interventional.

    905 interventional and 191 observational studies make up this index (82.6% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 1518Phase 228Phase 311Phase 432

Open and recent trials

1,096 total, page 12 of 22

COMPLETED NA 60 participants

The Effects of Intensity on Exercise-Induced Hypoalgesia During a Knee Extension Exercise

University of Central Florida

NCT05561582

COMPLETED Phase 1 59 participants

A Study to Evaluate the Cardiac Safety of a Single Dose of AL-335 Administered on a Background of Simeprevir and Odalasvir and of Repeated Doses of Odalasvir Administered Alone in Healthy Participants

Janssen Research & Development

NCT03155893

COMPLETED 59 participants

Sleep, Circadian Rhythm & Skin Health

University Hospitals Cleveland Medical Center

NCT02457000

COMPLETED Phase 1 59 participants

Clinical Evaluation of the Photoallergy Potential of Xenaderm Ointment

Healthpoint

NCT00645164

COMPLETED Phase 2 58 participants

MagniXene MRI Use in Patients With Asthma and COPD to Assess Regional Lung Function by Delineating Ventilation Defects

Xemed

NCT01833390

COMPLETED Phase 1 58 participants

Multiple Dose Escalation Trial Of PF-04308515 In Healthy Volunteers

Pfizer

NCT01101932

COMPLETED Phase 4 57 participants

Effects of Divalproex Sodium on Food Intake, Energy Expenditure, and Posture Allocation

Pennington Biomedical Research Center

NCT00287053

COMPLETED Phase 1 57 participants

A Research Study Looking at Similarity Between LY3437943 Versions for Different Injection Devices

Eli Lilly and Company

NCT06003465

COMPLETED Phase 1 57 participants

Food Study of Sumatriptan Succinate Tablets 100 mg to Imitrex® Tablets 100 mg

Mylan Pharmaceuticals

NCT00650247

COMPLETED Phase 1 56 participants

Bioequivalence of Two Transdermal Clonidine Administrations in Healthy Volunteers

Boehringer Ingelheim

NCT02096744

COMPLETED NA 56 participants

Assessing the Effects of a Cannabidiol Derived From Hemp Supplement in Healthy Adults

University of South Carolina

NCT05212402

COMPLETED Phase 1 56 participants

Alternate Dosing Regimens of BG00012 in Healthy Volunteers

Biogen

NCT01281111

COMPLETED Phase 1 56 participants

Study of the Safety, Tolerability, Pharmacokinetics and Pharmcodynamics of ILV-094 in Healthy Subjects

Wyeth is now a wholly owned subsidiary of Pfizer

NCT00447681

COMPLETED Phase 1 56 participants

Lansoprazole 30 mg DR Capsule Fasting Study

Teva Pharmaceuticals U

NCT01045967

COMPLETED Phase 1 56 participants

A Study of the Abuse Liability Potential of ALKS 5461 in Healthy, Non-Dependent, Recreational Opioid Users

Alkermes

NCT02413281

COMPLETED Phase 1 56 participants

Single Ascending Dose Study of TD-0714 in Healthy Subjects

Theravance Biopharma

NCT02639078

COMPLETED Early Phase 1 56 participants

Single Ascending Dose PK, Oral Bioavailability and Food Effect Study in Healthy Male Volunteers

NewLink Genetics Corporation

NCT03852446

COMPLETED Phase 1 56 participants

Dose-Finding Study of Lyophilized Shigella Sonnei 53G Challenge Strain

PATH

NCT02816346

COMPLETED Phase 1 55 participants

Fasting Study of Sumatriptan Succinate Tablets 100 mg to Imitrex® Tablets 100 mg

Mylan Pharmaceuticals

NCT00648466

COMPLETED 55 participants

Comparison of Externally and Self-Initiated Movements

National Institute of Neurological Disorders and Stroke (NINDS)

NCT00028197

COMPLETED Phase 1 55 participants

Effects of Tucatinib on Cardiac Repolarization in Healthy Participants

Seagen

NCT03777761

COMPLETED NA 55 participants

Nicotine Patch, Blood Flow and Oxidative Stress Study

University of Pennsylvania

NCT00954096

COMPLETED Phase 1 54 participants

Phase 1, Dose Escalation Study to Evaluate of Safety, Pharmacokinetics and Pharmacodynamics of Liposomal Bupivacaine 13.3 Administered Via a Single Intrathecal Injection to Healthy Volunteers

Pacira Pharmaceuticals

NCT05456490

COMPLETED Phase 1 54 participants

Fasting Study of Azithromycin Tablets 600 mg to Zithromax® Tablets 600 mg

Mylan Pharmaceuticals

NCT00650273

COMPLETED Phase 1 54 participants

Demonstrate Bioequivalence Between 6 ? 2-mg Tablets of Perampanel and a Single 12-mg Tablet of Perampanel in Healthy Subjects

Eisai

NCT01396590

COMPLETED Phase 1 54 participants

QT Intervals Study to Compare the Acute Effects of Orally Inhaled Dihydroergotamine (DHE), Oral Moxifloxacin, and Placebo

Allergan

NCT01191723

COMPLETED Phase 1 54 participants

Trial of IW-1973 (A Stimulator of Soluble Guanylate Cyclase (sGC)) in Healthy Volunteers

Cyclerion Therapeutics

NCT02616861

COMPLETED NA 53 participants

Theta Burst Transcranial Magnetic Stimulation of Fronto-parietal Networks: Modulation by Mental State

University of Michigan

NCT04010461

COMPLETED 53 participants

Aqueous Humor Dynamics and Biometric Parameters in Eyes of Children

University of Nebraska

NCT01290588

COMPLETED Phase 1 52 participants

Safety, Tolerability, and Pharmacokinetic Study of CAT-1004 in Healthy Adult Volunteers

Catabasis Pharmaceuticals

NCT01440166

COMPLETED Phase 1 52 participants

Safety Study Designed to Study the Effects of Two Different Doses of CXA-101/Tazobactam, a Low Dose and a High Dose, on the QT/QTc Intervals in Healthy Subjects

Cubist Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)

NCT02508753

COMPLETED Phase 4 52 participants

Assess the Effect of Zolpidem, Silenor & Placebo on Arousability, Ataxia/Balance & Cognition in Healthy Volunteers

Currax Pharmaceuticals

NCT02353299

COMPLETED Phase 1 52 participants

Dose Escalation Study of PF-07209326 in Healthy Participants and Participants With Sickle Cell Disease

Pfizer

NCT04255875

COMPLETED Phase 1 51 participants

PET Whole Body Imaging Using a Peripheral Benzodiazepine Receptor Ligand [C-11]PBR28

National Institute of Mental Health (NIMH)

NCT00407693

COMPLETED Phase 1 50 participants

A Study to Evaluate Safety, Tolerability, and Pharmacokinetics of Escalating Multiple Doses of TAK-831 in Healthy Participants

Neurocrine Biosciences

NCT03224325

COMPLETED NA 50 participants

Effects of Qigong, Tai Chi and Yoga Practice in Older Adults

Bastyr University

NCT00710853

COMPLETED Phase 1 50 participants

Safety of Lactobacillus Rhamnosus GG ATCC 53103 (LGG) in Healthy Volunteers

Massachusetts General Hospital

NCT00934453

COMPLETED NA 50 participants

Effects of Instrument Assisted Soft Tissue Mobilization Regarding Range of Motion and Lower Extremity Power

Beth Marschner

NCT06610058

COMPLETED Phase 1 50 participants

Multiple Dose Safety Study of SRX251 Capsules in Healthy Volunteers

Azevan Pharmaceuticals

NCT00532467

COMPLETED NA 50 participants

Effects of an Intermittent Fasting and Dietary Supplement Regimen on Glycemic Variability

Unicity International

NCT05493553

COMPLETED 50 participants

Effects of Gilenya (Fingolimod) on Thalamus Pathology and Cognitive Impairment in Patients With Relapsing Forms of Multiple Sclerosis

University at Buffalo

NCT02021162

COMPLETED Phase 4 50 participants

A Phase IIIB Dose Comparison Study of Subcutaneous Hydration With and Without Human Recombinant Hyaluronidase (HYLENEX) in Volunteer Subjects

Halozyme Therapeutics

NCT00311519

COMPLETED NA 50 participants

Immersive Virtual Reality Bicycling for Healthy Adults

Rutgers, The State University of New Jersey

NCT05253703

COMPLETED Phase 1 50 participants

Fed Study of Carvedilol Tablets 12.5 mg to Coreg® Tablets 12.5 mg

Mylan Pharmaceuticals

NCT00648622

COMPLETED Phase 1 50 participants

A Study to Assess LY4100511 (DC-853) in Healthy Adult Participants

DICE Therapeutics, Inc., a wholly owned subsidiary of Eli Lilly and Company

NCT06345794

COMPLETED NA 50 participants

The Effects of Hydromorphone on Responses to Verbal Tasks

University of Chicago

NCT02205983

COMPLETED Phase 1 49 participants

Bioavailability of SC Formulation and Japanese Ethnobridging Study for PRA023

Prometheus Biosciences, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)

NCT05354349

COMPLETED Phase 1 49 participants

A Pharmacokinetic Study of CVX-096 (PF-04856883) in Healthy Volunteers

Pfizer

NCT01637285

COMPLETED Phase 1 49 participants

A Study to Evaluate the Relative Oral Bioavailability of Seltorexant (JNJ-42847922) After Administration of 3 Different Formulations in Healthy Participants Under Fasted and Semi-fasted Conditions

Janssen Research & Development

NCT03438461

COMPLETED Phase 1 49 participants

A Phase 1, Open Label, Dose-escalation Study of the Safety, Pharmacokinetics and Antiretroviral Activity of 3BNC117

Rockefeller University

NCT02018510

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Phase Distribution

PhaseTrial count
Phase 1 518
Phase 2 28
Phase 3 11
Phase 4 32

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What is open for Healthy right now

225 recruiting of 1,096 indexed (21% open).

Phase mix: 43 late (III/IV) vs 546 early (I/II) (early-phase heavy).

Top sponsor: Eli Lilly and Company (55 trials), 9 others listed. 50 shown below, recruiting first. #2 of 28,963 conditions by registered trial count.

How open-enrollment share is computed

Open share is recruiting_count divided by trial_count for this condition label in the public registry export. Status can change between pulls; treat the figure as a snapshot of research attention, not treatment availability.

Frequently Asked Questions

How many clinical trials are there for Healthy?

PlainTrial tracks 1,096 US clinical trials for Healthy, of which 225 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Healthy?

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.

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.

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.

Verify with NIH →

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial for this condition, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.