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
Telephone-based Physical Activity Coaching or Self Monitored Physical Activity to Improve Physical Function in Older Adults Who Are Undergoing Surgery for Lung Cancer and Their Caregivers
City of Hope Medical Center
- Location
- Davis, CA + 15 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Testing & Refinement of CarePair: An Assessment and Referral Platform to Support Family Caregivers of Alzheimer's Disease and Related Dementias.
University of Southern California
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Evaluating AI-Generated Plain Language Summaries on Patient Comprehension of Ophthalmology Notes Among English-Speaking Patients
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Digital vs. Parent Modeled Toothbrushing
University of Southern California
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 3–6
- RecruitingHealthy volunteers
A Multicenter Prospective Observational Cohort Study Evaluating the Impact of Cancer-Directed Treatment and Medication Use, Including Cannabis Use, in Multiple Myeloma Patients
City of Hope Medical Center
- Location
- Duarte, CA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Vaginal Changes After CO2 Laser
University of California, Irvine
- Location
- Irvine, CA
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Spectroscopic Evaluation of Middle Ear Infection
University of California, Irvine
- Location
- Orange, CA + 1 other US site
- Eligibility basics
- Up to age 21
- RecruitingHealthy volunteers
Proactive Costs of Care Study
Cedars-Sinai Medical Center
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Filipino Family Health Initiative 1.0
Kaiser Permanente
- Location
- Pasadena, CA
- Eligibility basics
- Ages 8+
- RecruitingHealthy volunteers
Montalcino Aortic Consortium: Precision Medicine for Heritable Thoracic Aortic Disease
The University of Texas Health Science Center, Houston
- Location
- Newport Beach, CA + 12 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Behavioral Weight Loss Intervention Utilizing Mobile Health Technology in Hematopoietic Stem Cell Transplant Patients
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 13–30
- RecruitingHealthy volunteersPhase 3
Biomarker Exploration in Aging, Cognition and Neurodegeneration
University of California, Irvine
- Location
- Irvine, CA
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Cerebral Autosomal Dominant Arteriopathy With Subcortical Infarcts and Leukoencephalopathy (CADASIL) Study
University of Wisconsin, Madison
- Location
- Los Angeles, CA + 9 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effects of White Button Mushroom on Inflammation in Obese Postmenopausal Women at High Risk of Breast Cancer
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Ages 21+ · Women only
- RecruitingHealthy volunteers
UCLA Perinatal Biospecimen Repository
Yalda Afshar, MD, PhD
- Location
- Los Angeles, CA
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Towards Restoring Complex Movement After Paralysis: Algorithm Development With Healthy Participants
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Imaging-based Assessment of Oral Biofilm and Gingival Health
University of California, Irvine
- Location
- Irvine, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Efficacy of Lavender Aromatherapy on Anxiety and Pain Reduction During Awake Otolaryngologic Procedures
Cedars-Sinai Medical Center
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
BrainWeighve App Feasibility Study
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 14–21
- RecruitingHealthy volunteers
RCT for Latina Mental Health Using Web-Based Apps
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Effects of Mouthrinse on the Microbiome of the Oral Cavity and GI Tract
University of California, Irvine
- Location
- Irvine, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Mindfulness-Based Intervention to Reduce Stress Through the Cultivation of Loving-Kindness, Compassion, Joy, and Equanimity in Healthcare Professionals
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Pilot Study to Evaluate Multi-Spectral and Laser Speckle Imaging and Multiphoton Microscopy During Vascular Occlusion
University of California, Irvine
- Location
- Irvine, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
A Trial Comparing Screening Mammography With and Without Assistance From Artificial Intelligence for Breast Cancer Detection and Recall Rates in Adult Patients
Jonsson Comprehensive Cancer Center
- Location
- Los Angeles, CA + 5 other US sites
- Eligibility basics
- Ages 18+