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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 150 of 297
- RecruitingHealthy volunteers
Case Management Dyad
University of Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Ultra-Low Field (ULF) Point-of-Care (POC) MRI System for Brain Morphology and Pathology
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 3–99
- RecruitingHealthy volunteers
Smoking Cessation CM for Veterans With or at Risk for Cancer
VA Office of Research and Development
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Dental Implant Healing With TNF-Alpha Inhibitors
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Promoting Physical Activity and Fitness Among Underserved Latino Families Living in U.S.-Mexico Border Regions
San Diego State University
- Location
- San Diego, CA
- Eligibility basics
- Ages 6+
- RecruitingHealthy volunteersPhase 4
Role of Menopause in Thermoregulation
Penn State University
- Location
- University Park, PA
- Eligibility basics
- Ages 42–64 · Women only
- RecruitingHealthy volunteers
NIMH Clinical Pathway in Rural Appalachian School-based Health Clinics
West Virginia University
- Location
- Morgantown, WV + 2 other US sites
- Eligibility basics
- Ages 12–17
- RecruitingHealthy volunteers
Feasibility of an ADAPTive Intervention to Improve Food Security and Maternal-Child Health
Wake Forest University Health Sciences
- Location
- Winston-Salem, NC
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Feasibility of a Wireless Thermal Capsule Endoscopy to Detect Gastrointestinal Thermal Variance
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Gauging Outcomes of Total Milk Ingestion on Lipid and gControl
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Multi-level Mother-daughter Physical Activity Intervention for Pre- Adolescent Latinas
San Diego State University
- Location
- San Diego, CA
- Eligibility basics
- Ages 8–65 · Women only
- RecruitingHealthy volunteers
Testing an Enhanced Digital Delivery Model for Inherited Cancer Genetic Testing in Young Adults With Cancer
Alliance for Clinical Trials in Oncology
- Location
- Anchorage, AK + 319 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Family Communications After Genetic Testing
Alliance for Clinical Trials in Oncology
- Location
- Anchorage, AK + 347 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Influence of Social Media Ads on Food Choice - Master Protocol
NYU Langone Health
- Location
- New York, NY
- Eligibility basics
- Ages 13–17
- RecruitingHealthy volunteers
Studying the PAGODA Algorithm for Chemotherapy Dose Changes to Prevent Unplanned Treatment Delays
Alliance for Clinical Trials in Oncology
- Location
- Fairbanks, AK + 350 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Vascular Function in Adults With Down Syndrome
University of Nevada, Las Vegas
- Location
- Las Vegas, NV
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
Finding Immune Nascent Type 1 Diabetes
Indiana University
- Location
- Indianapolis, IN
- Eligibility basics
- Ages 1–99
- RecruitingHealthy volunteers
Screening With Portable X-rays for Rapid Recognition of TB
Columbia University
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Development of a Noninvasive Metric to Measure Small Bowel Sensation - The Small Intestine Stress Test
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Cognitive Neurocomputational Task Reliability & Clinical Applications Consortium (CNTRACS): Study 1
Washington University School of Medicine
- Location
- Irvine, CA + 4 other US sites
- Eligibility basics
- Ages 18–59
- RecruitingHealthy volunteers
Effects of Pre-Run Nutritional Supplements During a Fixed-Pace 5 km Treadmill Run
St. Louis University
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
Evaluation of Patients With Liver Disease
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–100
- RecruitingHealthy volunteers
Natural History of Craniofacial Anomalies and Developmental Growth Variants
National Institute of Dental and Craniofacial Research (NIDCR)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–100
- RecruitingHealthy volunteers
Long-term Observation of Participants With Mood Disorders
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–99
Data source: deploy-time snapshot of the ClinicalTrials.gov API. How we list studies