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 volunteers
Irritable Bowel Syndrome and Control Volunteers: Diet Challenge
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Inter-Brain Synchrony in Schizophrenia
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 2
Mindfulness-Assisted Psychedelic Therapy
University of Southern California
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 25+
- RecruitingHealthy volunteers
Natural History Study of and Genetic Modifiers in Spinocerebellar Ataxias
Lauren Moore
- Location
- Los Angeles, CA + 13 other US sites
- Eligibility basics
- Ages 6+
- RecruitingHealthy volunteers
Effect of Watermelon on Cardiometabolic Health
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Any age listed · Women only
- RecruitingHealthy volunteers
The Effects of Very Brief Exposure on PTSD in U.S. Combat Veterans
Children's Hospital Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
PPMI Clinical - Establishing a Deeply Phenotyped PD Cohort
Michael J. Fox Foundation for Parkinson's Research
- Location
- Birmingham, AL + 29 other US sites
- Eligibility basics
- Ages 30+
- RecruitingHealthy volunteers
Effect of Daily Mixed Spice Consumption on Memory Function
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 50–80
- RecruitingHealthy volunteers
Social Media Influences on Engagement and Susceptibility to Non-combustible Tobacco Product Use Among Youth and Young Adults (AYA)
University of Southern California
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 14–17
- RecruitingHealthy volunteers
Pancreatic Cancer Early Detection Consortium
Arbor Research Collaborative for Health
- Location
- Scottsdale, AZ + 39 other US sites
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Tactile Pre-Visit Imagery
University of Southern California
- Location
- Los Angeles, CA + 1 other US site
- Eligibility basics
- Ages 4–10
- RecruitingHealthy volunteersPhase 2
Fimepinostat, Combination HDAC and Pi3-kinase Inhibitor Tumor-Directed Therapy for Cushing Disease
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Deep Functional Phenotyping of the ALA Lung Health Cohort
Johns Hopkins University
- Location
- Birmingham, AL + 11 other US sites
- Eligibility basics
- Ages 25–35
- RecruitingHealthy volunteers
Comprehensive HHT Outcomes Registry of the United States (CHORUS)
Cure HHT
- Location
- Birmingham, AL + 15 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Social Facilitation of Emotion Regulation in Adolescence
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 13–25
- RecruitingHealthy volunteers
Brain/Craving Response to Smoking Cues After Oral Nicotine Pouch Use
University of Southern California
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 21–55
- RecruitingHealthy volunteers
Abuse Liability and Appeal of Oral Nicotine Products
University of Southern California
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 21–25
- RecruitingHealthy volunteers
Improving Behavioral Health for Caregivers and Children After Pediatric Injury
Medical University of South Carolina
- Location
- Los Angeles, CA + 3 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Evaluation of Geriatric Assessment and Management for Older Adults With Non-small Cell Lung Cancer Receiving Chemotherapy Radiation Therapy
City of Hope Medical Center
- Location
- Duarte, CA + 1 other US site
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Brain Health in Breast Cancer Survivors
Jonsson Comprehensive Cancer Center
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 35–65 · Women only
- RecruitingHealthy volunteers
Early Onset Colorectal Cancer Detection
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
A Noninvasive and Screening miRNA Signature for Gastrointestinal Cancer
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Liquid Biopsy for Early Detection of Colorectal Cancer Using Circular RNA
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Project for Multi-Omics-Based Early Detection of Hepatocellular Carcinoma (PROMETHEA Study)
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Ages 18+