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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 33 of 297
- RecruitingHealthy volunteers
(CIRRUS-2023-1) CLINICAL CLIN Assessment of PathFinder 1.0 on the CIRRUS 6000 and the CIRRUS 5000
Carl Zeiss Meditec-Dublin CoCe
- Location
- Tucson, AZ + 4 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
A Clinical Study to Evaluate the Efficacy and SPF of Two Test Materials According to an Adaptation of the Guidelines of the FDA Sunscreen Drug Products for Over-the-Counter Human Use
Good Molecules, LLC
- Location
- Winston-Salem, NC
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
A Prospective Controlled Study to Evaluate the Safety and Effectiveness of Thermage® FLX Radiofrequency Treatment
Bausch Health Americas, Inc.
- Location
- Sacramento, CA + 5 other US sites
- Eligibility basics
- Ages 30–60
- RecruitingHealthy volunteers
Data Collection of New Spectral CT Imaging Method
GE Healthcare
- Location
- Bethlehem, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Metatranscriptomic Markers of Colonic Neoplasia
Viome
- Location
- Bothell, WA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Women's Hormonal and Metabolic Wellbeing Study
Daily Nouri
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Development of an Algorithm to Detect Pulmonary Hypertension Using an Electronic Stethoscope
Eko Devices, Inc.
- Location
- Providence, RI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Detecting Pulmonary Hypertension With the Eko CORE 500 Digital Stethoscope
Eko Devices, Inc.
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
A Phase 2 Safety, Tolerability, PK, and Efficacy Study of CS-1103 Following Fentanyl Challenge With Naloxone Blockade
Clear Scientific, Inc.
- Location
- Glendale, CA
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Safety and Effectiveness of Mosaic for the Treatment of Midface Volume Deficit
Helios Aesthetics Inc.
- Location
- Bradenton, FL + 4 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
Safety and Efficacy of Flaus Electric Flosser on Plaque and Gingivitis Compared to a Manual Toothbrush
Flaus, Inc
- Location
- Fort Wayne, IN
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Appetite and Cognition Response to a Breakfast Cereal
General Mills
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 2
Caring Recharge Project for Caregivers of Individuals With Alzheimer's Disease
Photozig, Inc.
- Location
- Campbell, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Radicle GI Health RAATM: A Study Assessing the Impact of Health and Wellness Products on Gastrointestinal-Related Quality of Life and Related Health Outcomes
Radicle Science
- Location
- Del Mar, CA
- Eligibility basics
- Ages 21–105
- RecruitingHealthy volunteers
Radicle GI HealthTM VNB: A Study Assessing the Impact of Health and Wellness Products on Constipation and Related Health Outcomes
Radicle Science
- Location
- Del Mar, CA
- Eligibility basics
- Ages 21–105
- RecruitingHealthy volunteersPhase 2
Study Testing the Efficacy, Safety, and Tolerability of EDI048 in Cryptosporidium Infection Model in Healthy Adults
Novartis Pharmaceuticals
- Location
- Baltimore, MD + 1 other US site
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
A Study to Learn About the Safety of PENBRAYA During Pregnancy
Pfizer
- Location
- New York, NY
- Eligibility basics
- Ages 10–25 · Women only
- RecruitingHealthy volunteers
Study to Evaluate the Safety of Retreatment With Restylane® Lyft With Lidocaine for Augmentation of the Chin Region
Galderma R&D
- Location
- Westport, CT + 6 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
A Clinical Trial to Evaluate the Effects of a Powder Supplement in Supporting Lean Muscle Development, Hormone-Related Wellness, Digestive Comfort, Dermatologic Health, and Overall Wellness
Clean Nutraceuticals
- Location
- Las Vegas, NV
- Eligibility basics
- Ages 21–45
- RecruitingHealthy volunteers
Effects of Eggshell Membrane and Curcumin Extract Supplementation, Separately or Combined, on Recovery From Intense Exercise
ESM Technologies, LLC
- Location
- College Station, TX
- Eligibility basics
- Ages 18–40 · Men only
- RecruitingHealthy volunteers
Brain Stimulation Paired With Structured Language Learning in Adults
General Neuro Inc.
- Location
- Boston, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Data Collection Study Using CS (CardiacSense) BP (Blood Pressure) Watch and Pillow Systems
CardiacSense Ltd.
- Location
- Louisville, CO
- Eligibility basics
- Ages 50–80
- RecruitingHealthy volunteers
Effect of Sage Extract Supplementation on Cognitive Function in Middle-Aged Men and Women
ESM Technologies, LLC
- Location
- College Station, TX
- Eligibility basics
- Ages 40–60
- RecruitingHealthy volunteers
Comparative Self-collection for Cervical Cancer Screening Pivotal Study
Mel Mont Medical
- Location
- Phoenix, AZ + 10 other US sites
- Eligibility basics
- Ages 25–65 · Women only
Data source: daily sync of the ClinicalTrials.gov API. How we list studies