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7,114 recruiting studies with US sites, from the official ClinicalTrials.gov registry (refreshed Oct 28, 2026). No sign-up needed.
Most recently updated studies · page 26 of 297
- RecruitingHealthy volunteersPhase 1/Phase 2
Treatment of Relapsed/Refractory Intracranial Glioma in Patients Under 22 Years of Age
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Ages 1–21
- RecruitingHealthy volunteersEarly Phase 1
Positron Emission Tomography (PET) Imaging of Cholesterol Trafficking: Clinical Evaluation of [18F]FNP-59 in Normal Human Subjects (Group 1)
Benjamin Viglianti
- Location
- Ann Arbor, MI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Positron Emission Tomography (PET) Imaging of Cholesterol Trafficking: Clinical Evaluation of [18F]FNP-59 in Normal Human Subjects (Groups 2, 3 & 4)
Benjamin Viglianti
- Location
- Ann Arbor, MI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersOvernight stay mentioned
Dietary Intervention to Mitigate Adverse Consequences of Night Work
Brigham and Women's Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteersEarly Phase 1
Metformin and Muscle Recovery
University of Utah
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteersPhase 1
S-Nitrosylation (SNO) Therapy During Autologous Blood Transfusion
James Reynolds
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteersEarly Phase 1
An fMRI Investigation of the Effects of IV Lidocaine on Tinnitus
D. Bradley Welling, MD, PhD
- Location
- Boston, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Understanding Disorder-specific Neural Pathophysiology in Laryngeal Dystonia and Voice Tremor
Massachusetts Eye and Ear Infirmary
- Location
- Boston, MA
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 1
Delayed Immunological Tolerance in Patients With Well-functioning Pre-existing HLA-matched Kidney Transplants
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Trigeminal Evoked Responses to Improve Rhizotomy
University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Early Neurovascular Adaptations in Aging Women
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–70 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Study of Biodistribution, Metabolism, Excretion and Brain Uptake of 11C-HY-2-15
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 40–80
- RecruitingHealthy volunteersEarly Phase 1
Bone Marrow Derived Stem Cells Mobilization for Treatment of Abnormal Endometrium
Hugh Taylor
- Location
- Orange, CT
- Eligibility basics
- Ages 18–40 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Differing Levels of Hypoglycemia
University of Maryland, Baltimore
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
Cannabidiol (CBD) in Adults With ASD
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
Applying pGz in Mitochondrial Disease
Children's Hospital of Philadelphia
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 10–60
- RecruitingHealthy volunteersPhase 1/Phase 2
ACTION: Trial of Adding Buprenorphine, CBT, and TMS to Improve Outcomes of Long-Term Opioid Therapy for Chronic Pain
Medical University of South Carolina
- Location
- Charleston, SC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1/Phase 2
Assess Fibrin in Brains With AD/ADRD
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 55–90
- RecruitingHealthy volunteersEarly Phase 1
Role of Autophagy in Type 2 Diabetes Microvascular Dysfunction
Medical College of Wisconsin
- Location
- Milwaukee, WI
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersEarly Phase 1
Predictors of Aspirin Failure in Preeclampsia Prevention
Rockefeller University
- Location
- New York, NY
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Mapping Auricular Vagus Nerve Circuitry
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
Investigating the Persisting Effects of a Single Dose of Psilocybin on Structural Plasticity in Healthy Older Adults
University of California, Berkeley
- Location
- Berkeley, CA
- Eligibility basics
- Ages 60–85
- RecruitingHealthy volunteersPhase 1
Repetitive Transcranial Magnetic Stimulation for Post-concussion Headaches
State University of New York - Upstate Medical University
- Location
- Syracuse, NY
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
Pilot Study to Identify the Mediators and Inflammatory Cell Surface Receptors Involved in Allergic Airway Inflammation
Benjamin Medoff
- Location
- Boston, MA
- Eligibility basics
- Ages 18–50
Data source: daily sync of the ClinicalTrials.gov API. How we list studies