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7,120 recruiting studies with US sites, from the official ClinicalTrials.gov registry (refreshed Oct 26, 2026). No sign-up needed.
Most recently updated studies · page 133 of 297
- RecruitingHealthy volunteers
Incremental Vestibulo-ocular Reflex Adaptation as a Novel Treatment for Dizziness in People With Multiple Sclerosis
Emory University
- Location
- Atlanta, GA
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteers
Evaluating the Effects of an Electrical Stimulator on Improving the Walking Ability of Children With Cerebral Palsy
University of Nebraska
- Location
- Omaha, NE
- Eligibility basics
- Ages 7–40
- RecruitingHealthy volunteers
Amyloid PET Imaging in the Baltimore Longitudinal Study of Aging
National Institute on Aging (NIA)
- Location
- Baltimore, MD
- Eligibility basics
- Ages 55–110
- RecruitingHealthy volunteersPhase 2
BPL-1357 Against H1N1 Influenza Virus Challenge
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Evaluating the Barrier Function, Regenerative Capacity, and Soft Tissue Outcomes of Acellular Dermal Matrix
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteers
Olfactory Function and Model-Based Behavior in People Living With HIV and SUD
National Institute on Drug Abuse (NIDA)
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Survey to Determine Incarcerated Persons' Views on Surrogate Decision Making
National Institutes of Health Clinical Center (CC)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–120
- RecruitingHealthy volunteers
Mechanistic Validation of Human Multipolar TES-TI: Amplitude Modulation, Frequency, and Benchmarking
University of Wisconsin, Madison
- Location
- Madison, WI
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Metabolic Impact of VLCPUFA-Rich Fish Oil: A Clinical Study on Omega-3 Index Enhancement in Healthy Individuals
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Neural Mechanisms of Real-world Emotions and Internalizing
University of Miami
- Location
- Coral Gables, FL
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
Fathers and Babies (FAB) Research Study
Northwestern University
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Comprehensive Clinical, Microbiological and Immunological Assessment of Patients With Suspected Post Treatment Lyme Disease Syndrome and Selected Control Populations
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 13–99
- RecruitingHealthy volunteers
A Longitudinal Investigation of the Endocrine and Neurobiologic Events Accompanying Puberty
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 7–35
- RecruitingHealthy volunteers
Clinical and Genetic Studies of Li-Fraumeni Syndrome
National Cancer Institute (NCI)
- Location
- Bethesda, MD + 1 other US site
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Studies of the Natural History, Pathogenesis, and Outcome of Idiopathic Systemic Vasculitis
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 3+
- RecruitingHealthy volunteers
Maternal Cancer Diagnosis and Treatment During Pregnancy:a Database for Maternal, Fetal, and Neonatal Outcomes
The Cooper Health System
- Location
- Camden, NJ
- Eligibility basics
- Any age listed · Women only
- RecruitingHealthy volunteers
Characterization and Treatment of Adolescent Depression
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 11–25
- RecruitingHealthy volunteers
Improving Glycemic Control With Electrical Stimulation
University of Texas, El Paso
- Location
- El Paso, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
ChangeGradients: Promoting Adolescent Health Behavior Change
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 15–17
- RecruitingHealthy volunteers
Connect for Cancer Prevention Study (Connect)
National Cancer Institute (NCI)
- Location
- Denver, CO + 8 other US sites
- Eligibility basics
- Ages 30–70
- RecruitingHealthy volunteers
MATAspire: Mental Health Awareness Tailored App for Substance Prevention and Integrated Resilience Education
California State University, Northridge
- Location
- Northridge, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
STEPS: Substance Use Trial of E-cigarettes or Pharmacotherapy for Smoking
Medical University of South Carolina
- Location
- Charleston, SC + 3 other US sites
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
Acute Cryotherapy on Musculoskeletal Function and Biomarkers
University of Texas, El Paso
- Location
- El Paso, TX
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteers
Impact of Phenylalanine Elevations on Brain and Cognition in Adult PKU Carriers
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–60
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