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California Paid Clinical Trials
A listing of 5602 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
3541 - 3552 of 5602
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California is currently home to 5602 active clinical trials, seeking participants for engagement in research studies. These trials take place at a variety of cities in the state, including Los Angeles, San Francisco, San Diego and Sacramento. Whether you're a healthy volunteer interested in paid medical research or someone seeking trials related to a specific condition, the state offers a diverse array of opportunities in your vicinity.
Featured Trial
Healthy Participants Needed (Colonoscopy + Cancer Screening)
Recruiting
Earn $325 - $475 in electronic payment card compensation for your time and effort by participating in a clinical study to develop a blood test that may one day help screen for colon cancer. Take a quick quiz to see if you qualify.
Conditions:
Healthy
Healthy Volunteers
Healthy Subjects
Healthy Volunteer
Healthy Participants
Featured Trial
Buy Retatrutide Online Through Celia
Recruiting
Retatrutide (formerly M25) is an investigational peptide being studied for its potential in supporting weight management and metabolic health. It acts on GLP-1, GIP, and glucagon receptors to influence appetite, energy regulation, and fat metabolism.
Conditions:
Healthy
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Semaglutide and Tirzepatide are advanced GLP-1 medications designed to support weight management and metabolic health. They work by targeting GLP-1 receptors in the body, helping regulate appetite, improve blood sugar control, and support sustainable weight loss (up to 22% of body weight).
Get $50 off your first order using promo code: policy-lab-50
Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Featured Trial
Birth Control Clinical Research Study
Recruiting
Living with obesity and looking for a birth control option that is right for you? Clinical trials are now enrolling women with a body mass index (BMI) of 30 or more in the area to help study a potential new progestin-only contraceptive patch. Participating in research studies can help advance birth control options. Don’t let financial stress hold you back. All study-related assessments, care, and study patch are available at no cost. You may also be reimbursed for study-related travel.
Conditions:
Obesity
Overweight
Overweight and Obesity
Featured Trial
Depression Clinical Trial
Recruiting
Join us in researching a potential investigational treatment for Depression. Reimbursement for study-related expenses may be available to you.
Qualifying participants:
•Are between 18-65
•Have been experiencing a major depressive episode for at least a month
Qualifying participants:
•Are between 18-65
•Have been experiencing a major depressive episode for at least a month
Conditions:
Depression
Major Depressive Disorder
Depressive Disorder
Depressive Symptoms
Depressive Disorder
In-Utero Endoscopic Correction of Spina Bifida
Recruiting
The purpose of this study is to evaluate the feasibility and effectiveness of performing fetoscopic surgical correction of fetal spina bifida. Two surgical approaches will be utilized: the percutaneous technique versus the laparotomy/uterine exteriorization technique.
Gender:
FEMALE
Ages:
Between 18 years and 52 years
Trial Updated:
03/24/2025
Locations: Hollywood Presbyterian Medical Center, Los Angeles, California
Conditions: Neural Tube Defects, Spina Bifida, Myelomeningocele
Go Fit Fast, Recovery Trajectory Using PROMIS®, Linking PROMIS®
Recruiting
Prospective data will be collected in approximately 3500 patients (700 per 5 injury groups).
Patients will be followed up according to the standard (routine) for up to 1 year after the treatment.
Data collection will include underlying disease, treatment details, patient reported outcomes (PROs), anticipated or procedure-related adverse events (i.e. complications), and radiological outcomes.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/24/2025
Locations: Cedars-Sinai Department of Orthopaedics, Los Angeles, California
Conditions: Hip Fractures, Tibial Fractures, Ankle Fractures, Humeral Fracture, Proximal, Distal Radius Fracture
GORE® CARDIOFORM Septal Occluder and Antiplatelet Medical Management for Reduction of Recurrent Stroke in Patients With Patent Foramen Ovale (PFO): the REDUCE Post Approval Study
Recruiting
This study will assess the safety and effectiveness of GORE® CARDIOFORM Septal Occluder in a post approval setting and evaluate the quality of operator education and training and transferability of trial experience to a post-market setting.
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
03/24/2025
Locations: Scripps Health La Jolla, La Jolla, California
Conditions: Stroke, PFO - Patent Foramen Ovale
Stroke Recovery Initiative - Registry for Stroke Research Studies
Recruiting
The Stroke Recovery Initiative is a nation-wide participant recruitment registry that connects people who have had a stroke with researchers who are working to develop new approaches to improve recovery after stroke.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/24/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Stroke, Acute Stroke, Ischemic Stroke, Hemorrhagic Stroke, Subarachnoid Hemorrhage, Cerebral Ischemia, Cerebral Infarction, Cerebral Stroke, Cerebral Vascular Accident
Mediators of Atherosclerosis in South Asians Living in America
Recruiting
South Asian (Indian, Pakistani, Bangladeshi, Nepali, and Sri Lankan) individuals have high rates of cardiovascular disease that is not explained by traditional cardiovascular risk factors. Though South Asians represent over one-quarter of the world's population, there are no longitudinal studies in this high-risk ethnic group. The investigators aim to establish a longitudinal study of South Asians at three United States centers to identify risk factors linked to subclinical atherosclerosis and i... Read More
Gender:
ALL
Ages:
Between 40 years and 84 years
Trial Updated:
03/24/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Atherosclerosis, Cardiovascular Diseases, Heart Diseases, Coronary Artery Disease, Coronary Disease
A Study of Efficacy and Safety of Rosnilimab in Subjects with Moderate to Severe Ulcerative Colitis (ROSETTA)
Recruiting
ROSETTA STUDY: This study will evaluate the safety, tolerability, and efficacy of Rosnilimab in subjects with moderate to severe ulcerative colitis (UC)
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/22/2025
Locations: AnaptysBio Investigational Site 10-117, Garden Grove, California
Conditions: Ulcerative Colitis
A Dyadic Sleep Health Approach for Persons With Alzheimer's Disease and Caregivers
Recruiting
This is a randomized controlled trial over 5 years, using Stage II of the NIH-defined stage model for behavioral intervention development. We will evaluate the efficacy of the sleep intervention program (Care2Sleep) on sleep, health status measures, and quality of life (for dyads), and inflammation (for caregivers only). Eligible participants will be randomly assigned to in-person Care2Sleep, telehealth Care2Sleep, or to an in-person education control group. The Care2Sleep programs and the contr... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/22/2025
Locations: University of California San Diego, La Jolla, California
Conditions: Sleep
A Study to Assess Safety, Pharmacokinetics, and Pharmacodynamics of mRNA-3705 in Participants With Isolated Methylmalonic Acidemia
Recruiting
This is a study of mRNA-3705 in participants with isolated elevated methylmalonic acid (MMA) due to methylmalonyl-coenzyme A (CoA) mutase (MUT) deficiency. The main goal of the study is to assess safety, pharmacokinetics, and pharmacodynamics of mRNA-3705.
Gender:
ALL
Ages:
1 year and above
Trial Updated:
03/22/2025
Locations: UCLA Medical Center, Los Angeles, California
Conditions: Methylmalonic Acidemia
Phase 1 Trial of ST-001 NanoFenretinide in Relapsed/Refractory T-cell Non-Hodgkin Lymphoma
Recruiting
This study evaluates a fenretinide phospholipid suspension for the treatment of T-cell non-Hodgkin's lymphoma (NHL).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/22/2025
Locations: City of Hope Medical Foundation, Duarte, California
Conditions: T-cell Lymphoma, Cutaneous/Peripheral T-Cell Lymphoma, Peripheral T-cell Lymphoma, Peripheral T-Cell Lymphoma, Not Classified, Primary Cutaneous T-cell Lymphoma, Cutaneous T-Cell Lymphoma, Unspecified, Cutaneous T-cell Lymphoma, Follicular T-Cell Lymphoma, Angioimmunoblastic T-cell Lymphoma, Sézary's Disease, Mycosis Fungoides
Evaluating Novel Healthcare Approaches to Nurturing and Caring for Hospitalized Elders
Recruiting
The goal of this clinical trial is to compare the Hospital Elder Life Program (HELP) with a family-augmented version of HELP (FAM-HELP), that includes family members and care partners, for the prevention of delirium in older patients during hospital admission. The main objectives of the trial are the following:
1. To compare the effectiveness of FAM-HELP and HELP in reducing both the incidence of delirium and its severity.
2. To compare the effectiveness of FAM-HELP and HELP in improving patien... Read More
Gender:
ALL
Ages:
70 years and above
Trial Updated:
03/21/2025
Locations: Saddleback Medical Center, Orange, California
Conditions: Delirium, Neurocognitive Disorders, Mild Cognitive Impairment, Alzheimer Disease, Aging, Family Support, Family Members, Caregiver Burden, Implementation Science, Patient Satisfaction
PV Loop & Coarctation Study
Recruiting
Coarctation of the aorta accounts for 4-7% of all congenital heart disease. While stent therapy, when feasible, is the standard of care for coarctation, it may not completely improve the work (and afterload) of the heart due to its effects on the elasticity of the aorta. This study will provide the information needed to understand the effects of current management on the cardiac mechanics and work.
Gender:
ALL
Ages:
6 years and above
Trial Updated:
03/21/2025
Locations: Children's Hospital of Los Angeles, Los Angeles, California
Conditions: Coarctation of Aorta
CRISPR-Edited Allogeneic Anti-CD19 CAR-T Cell Therapy for Relapsed/Refractory B Cell Non-Hodgkin Lymphoma (ANTLER)
Recruiting
CB010A is a study evaluating safety, emerging efficacy, pharmacokinetics and immunogenicity of CB-010 in adults with relapsed/refractory B cell non-Hodgkin lymphoma after lymphodepletion consisting of cyclophosphamide and fludarabine.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/21/2025
Locations: University of California San Diego Moores Cancer Center, La Jolla, California
Conditions: Lymphoma, Non-Hodgkin, Relapsed Non Hodgkin Lymphoma, Refractory B-Cell Non-Hodgkin Lymphoma, Non Hodgkin Lymphoma, Lymphoma, B Cell Lymphoma, B Cell Non-Hodgkin's Lymphoma
3541 - 3552 of 5602
Kaiser Permanente houses over 6,000 physicians in southern California and it is also one of the largest research centers on the state. On its clinical trial division, Kaiser Permanente conducts clinical trials of almost every specialty funded by pharmaceutical companies, government, and foundations.
The Cedars-Sinai Medical Center located in Los Angeles is one of the largest research centers owned and operated by a private hospital in the United States. Focusing on biomedical, cancer, and heart research among other specialties, you can find almost any type of clinical trials for both health and non-healthy volunteers at the research division of Cedar-Sinai Medical Center.
There are around 100,000 clinical trials happening every year across the United States about almost every condition out there. While most clinical trials are testing drugs or medical devices there are also many behavioral and observational trials going on at any point in time. Many paid research studies are held at these California locations.
Clinical trials are incredibly important for making new medical and scientific discoveries, finding new and better methods for diagnosing medical conditions early, testing new interventions, and even developing safer and more effective surgical procedures.
In order for all these discoveries to me made available to the general population they need to go through years of rigorous testing both in healthy and non-healthy volunteers. During those years, medical professionals follow a protocol that has been previously approved by the FDA or other regulatory agency to test the effectiveness and safety of their discovery.
Other people choose to participate in a clinical trial because they feel it is a good way to contribute to the advancement of medical knowledge and that their participation can help many people in the future. The following lists of trials are broken down by condition, and to find a specific clinical trial in your area click through to clinicaltrials.gov.
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