Search
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.
2425 - 2436 of 5602
Match to Clinical Trials
Access to cutting-edge treatments
Latest clinical trials
Find trials in your area
Search by Name
Filter by Condition
Filter by Location
Filter by Age
Filter by Type
Gender
Type of Study
Clinical Trial Phase
Popular Cities
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
Featured Offer
Lose 20% of Body Weight With GLP-1's
Recruiting
Policy Lab has partnered with OnlineSemaglutide.org to offer trusted access to tirzepatide and other GLP-1 medications, including generic alternatives to Ozempic® and Wegovy®.
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
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
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
Featured Trial
Stroke Clinical Study
Recruiting
A clinical study for people that suffer with Stroke
Conditions:
Stroke
A Study of Auxora in Patients With AKI and Injurious Lung "Crosstalk"
Recruiting
Approximately 150 patients with acute kidney injury (AKI) associated with acute hypoxemic respiratory failure (AHRF) will be randomized at up to 40 sites. Patients will be randomly assigned to either Auxora or matching placebo. Study drug infusions will occur every 24 hours for five consecutive days for a total of five infusions.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/16/2025
Locations: UCLA, Los Angeles, California
Conditions: Acute Kidney Injury
Study of Arlocabtagene Autoleucel (BMS-986393) a GPRC5D-directed CAR T Cell Therapy in Adult Participants With Relapsed or Refractory Multiple Myeloma
Recruiting
The purpose of this study is to evaluate the effectiveness and safety of Arlocabtagene Autoleucel (BMS-986393) in participants with relapsed or refractory multiple myeloma.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/16/2025
Locations: UCLA Hematology/Oncology - Westwood (Building 200 Suite 214), Los Angeles, California
Conditions: Multiple Myeloma
StrokeNet Thrombectomy Endovascular Platform
Recruiting
STEP is a Randomized, Multifactorial, Adaptive Platform trial that seeks to optimize the care of patients with acute ischemic stroke (AIS) due to large (LVO) or medium vessel occlusions (MVO).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/16/2025
Locations: UCSD Health La Jolla, La Jolla, California
Conditions: Ischemic Stroke
VO and Nivolumab vs Physician's Choice in Advanced Melanoma That Progressed on Anti-PD-1 & Anti-CTLA-4 Drugs (IGNYTE-3)
Recruiting
This is a randomized, controlled, multicenter, open-label Phase 3 clinical study comparing VO in combination with nivolumab versus Physician's Choice treatment for patients with unresectable Stage IIIb-IV cutaneous melanoma whose disease progressed on an anti PD-1 and an anti-CTLA-4 containing regimen (administered either as a combination regimen or in sequence) or who are not candidates for treatment with an anti-CTLA-4 therapy.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
06/16/2025
Locations: Memorial Cancer Institute at Memorial Regional Hospital, Hollywood, California
Conditions: Advanced Melanoma
A Study of CNTY-101 in Participants With Refractory B Cell-mediated Autoimmune Diseases
Recruiting
CALiPSO-1 is a Phase 1, multi-centre, dose-confirmation study to evaluate the safety and efficacy of CNTY-101 in participants with refractory B cell-mediated autoimmune diseases including those with moderate to severe systemic lupus erythematosus (SLE) with or without lupus nephritis (LN), idiopathic inflammatory myopathies (IIM), and diffuse cutaneous systemic sclerosis (DcSSc).
Gender:
ALL
Ages:
17 years and above
Trial Updated:
06/16/2025
Locations: Keck School of Medicine of University of Southern California, Los Angeles, California
Conditions: Systemic Lupus Erythematosus, Lupus Nephritis, Idiopathic Inflammatory Myopathies, Diffuse Cutaneous Systemic Sclerosis
Clinical Study of SNK01 in Participants With Moderate Alzheimer's Disease
Recruiting
The goal of this clinical trial is to test SNK01 in participants with moderate Alzheimer's Disease. The main questions it aims to answer are:
1. Is SNK01 safe and tolerable when administered every 3 weeks for up to 1 year as an intravenous infusion
2. Can SNK01 administration improve cognitive assessment scores and biomarkers
Gender:
ALL
Ages:
Between 40 years and 85 years
Trial Updated:
06/16/2025
Locations: Behavioral Research Specialists, LLC, Glendale, California
Conditions: Moderate Alzheimer Disease
A Study to Assess BMS-986453 in Participants With Relapsed and/or Refractory Multiple Myeloma
Recruiting
The purpose of this study is to assess BMS-986453 in participants with relapsed and/or refractory multiple myeloma (RRMM).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/16/2025
Locations: City of Hope Comprehensive Cancer Center, Duarte, California
Conditions: Relapsed and/or Refractory Multiple Myeloma
HYDRAFIL-D: HYDRogel Augmentation For Intervertebral Lumbar Discs
Recruiting
A multi-center, prospective, dual arm, randomized, controlled pivotal study to evaluate the safety and effectiveness of the ReGelTec HYDRAFIL™ System.
Gender:
ALL
Ages:
Between 22 years and 85 years
Trial Updated:
06/16/2025
Locations: Boomerang Healthcare (IPM Medical Group), Walnut Creek, California
Conditions: Degenerative Disc Disease (DDD)
Study of HRO761 Alone or in Combination in Cancer Patients With Specific DNA Alterations Called Microsatellite Instability or Mismatch Repair Deficiency.
Recruiting
The main purpose of the study is to evaluate the safety and tolerability of HRO761 and identify the recommended dose(s), i.e., the optimal safe and active dose of HRO761 alone or in combination with pembrolizumab or irinotecan that can be given to patients who have cancers with specific molecular alterations called MSIhi (Microsatellite Instability-high) or dMMR (Mismatch Repair Deficient) that might work best to treat these specific cancer types and to understand how well HRO761 is able to trea... Read More
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
06/16/2025
Locations: University of California LA, Los Angeles, California
Conditions: MSIhi or dMMR Advanced Unresectable or Metastatic Solid Tumors, Including Colorectal Cancers
Study of RP2 in Combination With Second-line Therapy in Patients With Locally Advanced Unresectable or Metastatic HCC
Recruiting
The purpose of this study is to evaluate whether treatment with RP2 can provide efficacy as 2L treatment combined with atezolizumab plus bevacizumab in patients with locally advanced unresectable, recurrent, and/or metastatic HCC.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/16/2025
Locations: Beverly Hills Cancer Center, Beverly Hills, California
Conditions: Hepatocellular Carcinoma
Physiology-guided vs Angiography-guided Non-culprit Lesion Complete Revascularization for Acute MI & Multivessel Disease
Recruiting
COMPLETE-2 is a prospective, multi-centre, randomized controlled trial comparing a strategy of physiology-guided complete revascularization to angiography-guided complete revascularization in patients with acute ST-segment elevation myocardial infarction (STEMI) or non-ST-segment elevation myocardial infarction (NSTEMI) and multivessel coronary artery disease (CAD) who have undergone successful culprit lesion Percutaneous Coronary Intervention (PCI).
COMPLETE-2 OCT is a large scale, prospective... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/16/2025
Locations: UCLA, Los Angeles, California
Conditions: Acute Myocardial Infarction, Coronary Artery Disease
International Multicentric Observational Study to Characterize Subpopulations of Patients With Autism Spectrum Disorder
Recruiting
To determine sufficient number of biological and clinical markers to identify subgroups of potential best responders to a specific medication
Gender:
ALL
Ages:
Between 12 years and 65 years
Trial Updated:
06/16/2025
Locations: California Neuroscience Research, Sherman Oaks, California
Conditions: Autism Spectrum Disorder
2425 - 2436 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.
Search Clinical Trials in California by Condition
See All Conditions