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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 11 of 297
- RecruitingHealthy volunteersPhase 1
Safety and Immunogenicity Study of Revaccination With SCB-1019T in Healthy Adults
Clover Biopharmaceuticals USA, LLC
- Location
- Phoenix, AZ + 4 other US sites
- Eligibility basics
- Ages 60–85
- RecruitingHealthy volunteersPhase 1
Tracing the Metabolic Flux of Orally Administered NAD+ Precursors
Metro International Biotech, LLC
- Location
- Boston, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1/Phase 2
Safety, PK and Biodistribution of 18F-OP-801 in Patients With ALS, AD, MS, PD and Healthy Volunteers
Ashvattha Therapeutics, Inc.
- Location
- San Francisco, CA + 2 other US sites
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 1
Exploratory Clinical Study to Assess Safety and Efficacy of Xenon Gas Inhalation to Control Neuroinflammation
General Biophysics LLC
- Location
- Boston, MA
- Eligibility basics
- Ages 55–75
- RecruitingHealthy volunteersPhase 1
Sustained Acoustic Medicine (SAM) for Symptomatic Treatment of Pain Related to Bone Fracture
ZetrOZ, Inc.
- Location
- Trumbull, CT + 1 other US site
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 1
Sustained Acoustic Medicine for Osteoarthritis Pain
ZetrOZ, Inc.
- Location
- Tampa, FL
- Eligibility basics
- Ages 35–85
- RecruitingHealthy volunteersPhase 1/Phase 2
Spermatogonial Differentiation Via Testicular Organoid
CellARTs Inc.
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18–60 · Men only
- RecruitingHealthy volunteersPhase 1
A Phase 1 Study to Evaluate Safety, Tolerability and Pharmacokinetics of TIX100 in Healthy Subjects
TIXiMED, Inc.
- Location
- Chula Vista, CA
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 1/Phase 2
Mesenchymal Stem Cells for the Treatment of Various Chronic and Acute Conditions
Thomas Advanced Medical LLC
- Location
- Culver City, CA
- Eligibility basics
- Ages 18+
- RecruitingPhase 1Overnight stay mentioned
A Study of GNTI-122 in Adults Recently Diagnosed With T1D
GentiBio, Inc
- Location
- Duarte, CA + 8 other US sites
- Eligibility basics
- Ages 18–55
- RecruitingPhase 1/Phase 2Overnight stay mentioned
Study is to Assess the Safety and Tolerability of VTx-002 in Participants With ALS
Vector Y Therapeutics
- Location
- San Diego, CA + 3 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1Overnight stay mentioned
A Safety and Tolerability Study of HJB647 in Heart Failure Participants With Reduced Ejection Fraction
Novartis Pharmaceuticals
- Location
- Bradenton, FL + 4 other US sites
- Eligibility basics
- Ages 18–100
- RecruitingPhase 1Overnight stay mentioned
Study to Assess the Use of Tezampanel for Opioid Withdrawal Syndrome in Treatment-Seeking Patients With Opioid Use Disorder
Proniras Corporation
- Location
- Indianapolis, IN
- Eligibility basics
- Ages 18–65
- RecruitingPhase 1Overnight stay mentioned
A Study of LTX-001 In Adult Participants With Acute Exacerbation of Schizophrenia
Leal Therapeutics, Inc
- Location
- Little Rock, AR + 9 other US sites
- Eligibility basics
- Ages 18–55
- RecruitingPhase 1Overnight stay mentioned
Determining Efficacy and Safety of BXCL501 in Agitation Associated With Pediatric Schizophrenia and Bipolar Disorder
BioXcel Therapeutics Inc
- Location
- Anaheim, CA + 3 other US sites
- Eligibility basics
- Ages 10–17
- RecruitingPhase 1/Phase 2Overnight stay mentioned
A Study to Investigate Lithium Brain/Plasma Pharmacokinetics and Safety of an AL001 Oral Capsule Compared to a Marketed Immediate-release Lithium Carbonate Capsule in Subjects With Bipolar I Disorder
Alzamend Neuro, Inc.
- Location
- Boston, MA
- Eligibility basics
- Ages 18–65
- RecruitingPhase 1Overnight stay mentioned
MAD Study to Assess the Safety, Tolerability, PKs and Efficacy of YJ001 for Spray Use in Patients With DPNP
Zhejiang Hanmai Pharmaceutical Technology Co., Ltd.
- Location
- Fredericksburg, TX
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 2Overnight stay mentioned
Evaluate the Efficacy and Safety of Ruxolitinib on Hair Regrowth in Patients With Autoimmune Polyendocrinopathy Candidiasis Ectodermal Dystrophy (APECED)-Associated Alopecia Areata
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 12–75
- RecruitingHealthy volunteersEarly Phase 1
Study Brain Mechanisms of Frustration With Magnetoencephalography in Healthy Volunteers
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersEarly Phase 1
Sensory Tests of Cigarettes for Identification of Flavors in Current Daily Smoking Adults
Roswell Park Cancer Institute
- Location
- Buffalo, NY
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteersPhase 1
Environment and Alcohol: A Pilot Study
National Institute on Drug Abuse (NIDA)
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–100
- RecruitingHealthy volunteersPhase 1
Evaluating the Dose, Safety, Tolerability, and Immunogenicity of Mosaic Hexavalent Influenza Vaccine VRCFLUMOS0116-00-VP (FluMos-v2) With and Without ALFQ Adjuvant in Healthy Adults
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersPhase 1
A Vaccine (CMV-MVA Triplex Vaccine) for the Enhancement of CMV-Specific Immunity and the Prevention of CMV Viremia in Patients Undergoing Haploidentical Hematopoietic Stem Cell Transplant
City of Hope Medical Center
- Location
- Duarte, CA + 2 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 1
PET Imaging of Phosphodiesterase-4 (PDE4) in Volunteers With Alzheimer Disease (AD) or Mild Cognitive Impairment (MCI)
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 50–100
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