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 1/Phase 2
A Study of MET233 in Combination With MET097 in Individuals With Obesity or Overweight With or Without Diabetes
Pfizer
- Location
- Cypress, CA
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 1
A Study to Learn About a Vaccine Against E Coli in Healthy Adults
Pfizer
- Location
- Anaheim, CA + 9 other US sites
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteersPhase 1/Phase 2
A Trial to Learn if ALN-PNP is Safe and Well Tolerated in Healthy Adults and Adult Participants With Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)
Regeneron Pharmaceuticals
- Location
- Los Angeles, CA + 4 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 1
Evaluate the Pharmacokinetics, Safety, and Tolerability of NSHO-101 in Healthy Participants
Ensho Therapeutics, Inc.
- Location
- Anaheim, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
A Study to Evaluate the Safety, Tolerability, and Drug Levels of BMS-986521 in Healthy Participants.
Bristol-Myers Squibb
- Location
- Anaheim, CA
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 1/Phase 2
Study of VGA039 in Healthy Volunteers and Patients With Von Willebrand Disease (VIVID)
Vega Therapeutics, Inc
- Location
- Los Angeles, CA + 9 other US sites
- Eligibility basics
- Ages 12–60
- RecruitingHealthy volunteersPhase 1/Phase 2
Mesenchymal Stem Cells for the Treatment of Various Chronic and Acute Conditions
Thomas Advanced Medical LLC
- Location
- Culver City, CA
- Eligibility basics
- Ages 18+
- RecruitingPhase 1Overnight stay mentioned
A Study of GNTI-122 in Adults Recently Diagnosed With T1D
GentiBio, Inc
- Location
- Duarte, CA + 8 other US sites
- Eligibility basics
- Ages 18–55
- RecruitingPhase 1Overnight stay mentioned
Determining Efficacy and Safety of BXCL501 in Agitation Associated With Pediatric Schizophrenia and Bipolar Disorder
BioXcel Therapeutics Inc
- Location
- Anaheim, CA + 3 other US sites
- Eligibility basics
- Ages 10–17
- RecruitingHealthy volunteersPhase 1
A Vaccine (CMV-MVA Triplex Vaccine) for the Enhancement of CMV-Specific Immunity and the Prevention of CMV Viremia in Patients Undergoing Haploidentical Hematopoietic Stem Cell Transplant
City of Hope Medical Center
- Location
- Duarte, CA + 2 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 1
Writing About Experiences and Health in Older Adults II
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteersPhase 1
Evaluation of Oral THC and CBD in Men and Women
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 21–55
- RecruitingHealthy volunteersPhase 1
High Potency Cannabis: Acute and Protracted Effects
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 21–55
- RecruitingHealthy volunteersPhase 1/Phase 2
A Phase 1/2A, Randomized Study of a T Follicular Helper (TFH)-Targeting Genetic Vaccine Strategy Designed to Induce Broad, Durable Immune Responses
Kara Chew
- Location
- Los Angeles, CA + 1 other US site
- Eligibility basics
- Ages 40–64
- RecruitingHealthy volunteersPhase 1/Phase 2
Hyperemesis Gravidarum Risk Reduction With Metformin
University of Southern California
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–49 · Women only
- RecruitingHealthy volunteersPhase 1
COES: Curing Order Effects on Sealants
University of Southern California
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 5–14
- RecruitingHealthy volunteersEarly Phase 1
CMV-specific HIV-CAR T Cells as Immunotherapy for HIV/AIDS
City of Hope Medical Center
- Location
- Duarte, CA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Biologic Therapy to Prevent Osteoarthritis After ACL Injury
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteersPhase 1
Age-dependent Effects of Smoked and Oral Delta-9-THC
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
A Reduced-Intensity Conditioning Regimen (Cyclophosphamide, Pentostatin, Anti-thymocyte Globulin) Followed by Haploidentical Hematopoietic Stem Cell Transplant for the Treatment of Patients With Refractory or Recurrent…
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Up to age 75
- RecruitingHealthy volunteersPhase 1
THC and CBD: A Controlled Human Study Probing a Harm Reduction Strategy
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 21–55
- RecruitingHealthy volunteersPhase 1
Delayed Immunological Tolerance in Patients With Well-functioning Pre-existing HLA-matched Kidney Transplants
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Vocal Emotion Communication With Cochlear Implants
Father Flanagan's Boys' Home
- Location
- Tempe, AZ + 2 other US sites
- Eligibility basics
- Ages 6–80
- RecruitingHealthy volunteersOvernight stay mentioned
Effects of Using a Storybook, to Explain Leukemia to Children Versus the Standard Child Life Intervention, on Parental Stress.
Children's Hospital Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 3+