Location · Los Angeles, CA
Clinical trials in Los Angeles, CA
1045 recruiting studies have a site in the Los Angeles area, and 275 of them accept healthy volunteers. The area includes Santa Monica, Beverly Hills, Pasadena, Long Beach, Torrance, Inglewood and nearby cities.
1,045 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- 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
- Tucson, AZ + 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+
- RecruitingHealthy volunteers
Acellular Dermal Matrix Investigation in Breast Reconstruction
RTI Surgical
- Location
- Little Rock, AR + 11 other US sites
- Eligibility basics
- Ages 22+ · Women only
- RecruitingHealthy volunteers
Safety and Effectiveness Evaluation of the High-intensity Focused Ultrasound Device for Lifting Lax Submental and Neck Tissue
CLASSYS Inc.
- Location
- Los Angeles, CA + 4 other US sites
- Eligibility basics
- Ages 30–65
- RecruitingHealthy volunteersPhase 3
A Study to Evaluate Tradipitant on Treating Nausea and Vomiting Induced by GLP-1R Agonist Use
Vanda Pharmaceuticals
- Location
- Los Angeles, CA + 2 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Immune Defense Protein Impact On Respiratory Immune Outcomes
Quantec Ltd
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Autologous Hair Follicle Derived Secretome as Adjunct to Aesthetic Procedures
Acorn Biolabs Inc.
- Location
- Scottsdale, AZ + 18 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Data Gathering for A10900
Optos, PLC
- Location
- Anaheim, CA + 2 other US sites
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
Autologous Hair Follicle Secretome for Androgenic Alopecia (Single Site)
Acorn Biolabs Inc.
- Location
- West Hollywood, CA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
The Effects of a Nutritional Supplement on Sleep Quality
Athletic Greens International
- Location
- Santa Monica, CA
- Eligibility basics
- Ages 35–65
- RecruitingHealthy volunteers
cfDNA Assay Prospective Observational Validation for Early Cancer Detection and Minimal Residual Disease
Adela, Inc
- Location
- Duarte, CA + 15 other US sites
- Eligibility basics
- Ages 40+
- RecruitingHealthy volunteers
Efficacy in Controlling Myopia in Young Children Using a Novel Spectacle Lens
SightGlass Vision, Inc.
- Location
- Oakland, CA + 13 other US sites
- Eligibility basics
- Ages 6–8
- RecruitingHealthy volunteers
Study of Student Flourishing
Flourish Science, Inc.
- Location
- Berkeley, CA + 5 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Acute Partial Thickness Burn Study Comparing Transforming Powder Dressing to Standard of Care Dressing
ULURU Inc.
- Location
- Orange, CA + 5 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 2
Thymus Regeneration, Immunorestoration, and Insulin Mitigation Extension Trial
Intervene Immune, Inc.
- Location
- Torrance, CA
- Eligibility basics
- Ages 40–80
- RecruitingHealthy volunteers
Prospective Study on Power Prenatal Vitamins for Males on YO Score At-home Sperm Test Results
The Bird and Be Co Inc
- Location
- Encino, CA
- Eligibility basics
- Ages 18–50 · Men only
- RecruitingHealthy volunteersPhase 3
Safety and Efficacy of Brilaroxazine (RP5063) in Schizophrenia
Reviva Pharmaceuticals
- Location
- Phoenix, AZ + 16 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Urine Metabolites in the Diagnosis of Disease
Luventix, Inc.
- Location
- Encinitas, CA + 3 other US sites
- Eligibility basics
- Ages 18+
- Recruiting
Assessment of CCM in HF With Higher Ejection Fraction
Impulse Dynamics
- Location
- Birmingham, AL + 64 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
[18F]PI-2620 Phase 3 Histopathological Study
Lantheus Biosciences Ltd.
- Location
- Phoenix, AZ + 16 other US sites
- Eligibility basics
- Ages 50+
- RecruitingPhase 3
Study to Evaluate Safety, Efficacy and Pharmacokinetics (PK) of a Modified Regimen of Ublituximab
TG Therapeutics, Inc.
- Location
- Birmingham, AL + 35 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingPhase 3
A Study Evaluating the Efficacy and Safety of Pegozafermin in Participants With MASH and Fibrosis (ENLIGHTEN-Fibrosis)
Hoffmann-La Roche
- Location
- Birmingham, AL + 121 other US sites
- Eligibility basics
- Ages 18–80
- RecruitingPhase 3
A Study to Evaluate the Efficacy and Safety of Pegozafermin in Participants With Compensated Cirrhosis Due to MASH
Hoffmann-La Roche
- Location
- Birmingham, AL + 112 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 3
A Study to Evaluate the Efficacy and Safety of Tulisokibart (MK-7240) in Participants With Moderate to Severe Crohn's Disease (MK-7240-008)
Merck Sharp & Dohme LLC
- Location
- Sun City, AZ + 70 other US sites
- Eligibility basics
- Ages 16–80