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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 34 of 297
- RecruitingHealthy volunteers
Shield Post-Approval Study Protocol
Guardant Health, Inc.
- Location
- Chandler, AZ + 48 other US sites
- Eligibility basics
- Ages 45–81
- RecruitingHealthy volunteersPhase 4
A Study to Learn About a COVID-19 Vaccine in Healthy Adults 18 Through 64 Years of Age
BioNTech SE
- Location
- Walnut Creek, CA + 4 other US sites
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteers
Intalight Reference Database Protocol for VG200D
Intalight, Inc
- Location
- San Diego, CA + 2 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
A Clinical Trial to Evaluate the Effects of an Omega-3-containing Supplement on DHA and EPA Levels in the Blood
Revive Active
- Location
- Las Vegas, NV
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Safety and Effectiveness Evaluation of the COLO-BT as an Alternative Treatment to the Ileostomy
JSR Medical Co., Ltd.
- Location
- Buffalo, NY + 2 other US sites
- Eligibility basics
- Ages 19–80
- RecruitingHealthy volunteers
Hybrid Delivery to Increase Access and Sustainability: Evaluating ezParent Implementation
Klein Buendel, Inc.
- Location
- Columbus, OH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
An Early Prospective Study of the Traq™ Device for Characterization of Binocular Ocular Function in Normal Subjects and Subjects With Recent Traumatic Brain Injury
Rebiscan, Inc.
- Location
- Waukee, IA
- Eligibility basics
- Ages 12+
- RecruitingHealthy volunteers
A Trial to Study the Effects of Ginseng and Cordyceps on Aerobic Capacity, Lactate Kinetics, and Nitric Oxide
Applied Food Sciences Inc.
- Location
- Canfield, OH
- Eligibility basics
- Ages 40–65
- RecruitingHealthy volunteers
APOL1 Genotyping CTA Clinical Performance Study
Almac Diagnostic Services LLC
- Location
- Durham, NC
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Establishing Normative Urodynamics Parameters for the Glean Urodynamics System in Healthy Adults
Bright Uro
- Location
- Phoenix, AZ + 2 other US sites
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Evaluation of the Q-Pad hrHPV Test System for Identifying Precancer
Qurasense
- Location
- New Haven, CT + 2 other US sites
- Eligibility basics
- Ages 25+ · Women only
- RecruitingHealthy volunteers
Non-Invasive System to Deliver Therapeutic Hypothermia for Protection Against Noise-Induced Hearing Loss
Restorear Devices LLC
- Location
- Miami, FL
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
A Usability Study of a Multi-channel ECG Monitoring Device
Wearlinq
- Location
- New London, NC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Sleep More, Stress Less: 90-Day Trial of Neuralli Mood
Efforia, Inc
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Non-Invasive Preeclampsia Screening and Biobank
Sequenom, Inc.
- Location
- Glendale, AZ + 15 other US sites
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Registry Study for the Evaluation of High-risk Cardiac Patients by WILLEM AI-based ECG Platform
Idoven 1903 S.L.
- Location
- Nashville, TN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
HeartBeam ECG Registry
HeartBeam, Inc.
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Motiva Implants® Post-Approval Study
Motiva USA LLC
- Location
- Beverly Hills, CA + 32 other US sites
- Eligibility basics
- Ages 22+ · Women only
- RecruitingHealthy volunteers
A Multi-Site Study to Assess the Effect of Availability of a Heated Tobacco Product on Smoking Abstinence Among Current Primary Cigarette Smokers
RAI Services Company
- Location
- Brandon, FL + 7 other US sites
- Eligibility basics
- Ages 21–65
- RecruitingHealthy volunteers
Intervention to Help Orient Men to Excel (IN-HOME) Phase II Study
KDH Research & Communication
- Location
- Atlanta, GA
- Eligibility basics
- Ages 18+ · Men only
- RecruitingHealthy volunteers
Walk With Me (WWM) for Perinatal Grief
Oregon Research Behavioral Intervention Strategies, Inc.
- Location
- Eugene, OR
- Eligibility basics
- Ages 15+
- RecruitingHealthy volunteers
Neonatal Neurological Observation With Video AI
Artemis AI Labs
- Location
- New York, NY
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Multicenter Trial of Antibiotic Eluting Graft for Promoting New Bone Growth in/Near Infected Bone Cavities
Elute, Inc.
- Location
- Los Angeles, CA + 11 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
Development of a Home Test for Measuring Blood P-tau217 in Alzheimer's Disease Using the Tasso Lancet Device
Neurogen Biomarking LLC
- Location
- Chicago, IL
- Eligibility basics
- Ages 40–90
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