Healthy volunteers · Los Angeles area, CA
Studies for healthy volunteers in Los Angeles area, CA
275 recruiting studies have a site in the Los Angeles area. This page includes nearby cities such as Santa Monica, Beverly Hills, Pasadena, Long Beach.
275 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteers
Galleri® in the Medicare Population.
GRAIL, Inc.
- Location
- Auburn, CA + 70 other US sites
- Eligibility basics
- Ages 50+
- RecruitingHealthy volunteers
Safety and Tolerability Evaluation of IgG Binding Protein LT
Bactolife A/S
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 3
A Phase 3 Study of Revaccination in Subsequent Pregnancies With Bivalent RSV Vaccine and Duration of Protection of a Single Dose
Pfizer
- Location
- Los Angeles, CA + 76 other US sites
- Eligibility basics
- Ages 0 mo+
- RecruitingHealthy volunteersPhase 3
A Study to Learn About a Clostridioides Difficile Vaccine in People 65 Years of Age and Older
Pfizer
- Location
- Daly City, CA + 138 other US sites
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteersPhase 3
Fertilo In Vitro Research Study and Trial
Gameto, Inc.
- Location
- Clovis, CA + 15 other US sites
- Eligibility basics
- Ages 18–35 · Women only
- RecruitingHealthy volunteers
ProACT Post-Approval Study
Uromedica
- Location
- Los Angeles, CA + 13 other US sites
- Eligibility basics
- Ages 50+ · Men only
- RecruitingHealthy volunteersPhase 3
Lot-to-lot Consistency Study of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From 2 Months of Age
Sanofi
- Location
- Huntington Park, CA + 13 other US sites
- Eligibility basics
- Ages 1 mo–2 mo
- RecruitingHealthy volunteers
A Randomized Comparison of Stage-Based Care Versus Risk Factor-Based Care for Prevention of Cardiovascular Events
Cleerly, Inc.
- Location
- Beverly Hills, CA + 121 other US sites
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteers
This Study Evaluates the ALPCO Syphilis-T and Syphilis-NT CLIA Kits for Detecting Syphilis Antibodies in Serum and Plasma. Samples From At-risk, HIV-positive, Pregnant, and Healthy Individuals Will Assess Assay…
American Laboratory Products Company
- Location
- Lancaster, CA + 5 other US sites
- Eligibility basics
- Ages 13+
- RecruitingHealthy volunteers
The Happiest Baby, Inc. SNOO Postmarket Surveillance Study
Happiest Baby, Inc.
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Observational, Non-Interventional Study Supporting Validation of eVO2peak Using Results in Patients Receiving Standard of Care Cardiopulmonary Exercise Tests (CPET)
Prolaio
- Location
- Palo Alto, CA + 10 other US sites
- 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
Comparative Self-collection for Cervical Cancer Screening Pivotal Study
Mel Mont Medical
- Location
- Sherman Oaks, CA + 10 other US sites
- Eligibility basics
- Ages 25–65 · Women only
- RecruitingHealthy volunteers
Shield Post-Approval Study Protocol
Guardant Health, Inc.
- Location
- Anaheim, CA + 48 other US sites
- Eligibility basics
- Ages 45–81
- RecruitingHealthy volunteers
Establishing Normative Urodynamics Parameters for the Glean Urodynamics System in Healthy Adults
Bright Uro
- Location
- Tustin, CA + 2 other US sites
- Eligibility basics
- Ages 18–45
- 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
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
EXoPERT EMERALD Clinical Study
EXoPERT
- Location
- Long Beach, CA + 8 other US sites
- Eligibility basics
- Ages 45+
- RecruitingHealthy volunteers
A Study to Evaluate the Effects of a Prebiotic Soda on Glycemic Control in Adults
Olipop, PBC
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 30–70
- RecruitingHealthy volunteers
AI-Enabled Direct-from-ECG Ejection Fraction (EF) Severity Assessment Using COR ECG Wearable Monitor
Peerbridge Health, Inc
- Location
- Orange, CA + 7 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 3
A Study on the Immune Response and Safety of an Investigational Chickenpox Vaccine When Given to Healthy Children 12 to 15 Months of Age
GlaxoSmithKline
- Location
- Canoga Park, CA + 46 other US sites
- Eligibility basics
- Ages 1–1
- RecruitingHealthy volunteersPhase 3
A Study on the Immune Response and Safety of an Investigational Chickenpox Vaccine and a Marketed Measles, Mumps and Rubella Vaccine When Administered as Intramuscular Injection to Healthy Children 12 to 15 Months of Age
GlaxoSmithKline
- Location
- Huntington Park, CA + 12 other US sites
- Eligibility basics
- Ages 1–1
- RecruitingHealthy volunteers
A Study Evaluating the Impact of Regular FODMAP-targeting Digestive Enzyme Blend Use on Gastrointestinal Symptoms in Individuals With Self-Reported Bloating
Kiwi Health Inc
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
Who these studies look for
“Healthy” is decided at screening, not by you. Sites usually check vital signs, blood and urine tests, an ECG, your medications and sometimes your BMI or smoking status. A study can still turn you away for reasons that have nothing to do with being unwell, such as timing or a full roster.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.