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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.
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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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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
Two-fraction HDR Monotherapy for Localized Prostate Cancer
Recruiting
This is a single center single arm prospective pilot study investigating the safety of high dose rate (HDR) brachytherapy as monotherapy delivered in 2 fractions 3 hours apart. HDR monotherapy has been established as safe and effective in this context, however previous studies have delivered 2 fractions on separate days, or at least 6 hours apart. Clinically, this regimen, if shown to be safe and effective in future studies, has the potential to reduce operative resources and logistical stresses... Read More
Gender:
MALE
Ages:
18 years and above
Trial Updated:
04/28/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Prostate Adenocarcinoma, Localized Prostate Carcinoma
Device Global Registry for the IlluminOss Bone Stabilization System
Recruiting
This is a multi-center, observational patient registry. The primary objective of the study is to collect safety and performance data on the IlluminOss Device when used to provide stabilization and alignment for the treatment of traumatic or impending and pathologic fractures.
Gender:
ALL
Ages:
50 years and above
Trial Updated:
04/28/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Traumatic Fracture, Pathological Fracture
Exercise Training and NR Supplementation Trial to Improve Fitness in AYA HCT Survivors
Recruiting
This will be a randomized, placebo-controlled trial with a 2x2 factorial design testing the effects of an NAD+ precursor (NR) and exercise on skeletal muscle quality and VO2max in AYA HCT survivors.
The primary outcome is the change in muscle strength (isometric knee extension) from baseline to 16 weeks. Key secondary outcomes are the change in muscle strength (ankle plantarflexion) from baseline to 16 weeks, the change in grip strength from baseline to 16 weeks, the change in lower extremity m... Read More
Gender:
ALL
Ages:
Between 10 years and 30 years
Trial Updated:
04/28/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Cancer Survivors, Aplastic Anemia, Myelodysplastic Syndromes, Lymphoblastic Leukemia, Myeloid Leukemia
A Study to Learn How Safe and Tolerable Vonsetamig is in Adult Patients With Chronic Kidney Disease (CKD) Who Need Kidney Transplantation and Are Highly Sensitized to Human Leukocyte Antigen (HLA)
Recruiting
The purpose of this study is to determine whether vonsetamig will safely decrease anti-HLA antibodies to allow for kidney transplantation.
Vonsetamig is being studied for treatment of patients in need of kidney transplantation who are highly sensitized to HLA.
The study is looking at several other research questions, including:
* Side effects that may be experienced from taking vonsetamig
* How vonsetamig works in the body
* How much vonsetamig is present in the blood
* If vonsetamig works to... Read More
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
04/28/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Chronic Kidney Disease (CKD)
Study of SGN1 in Patients With Advanced Solid Tumor
Recruiting
Objectives:To assess the safety and tolerability followed by a dose expansion study to characterize safety, and preliminary efficacy of SGN1 in participants with refractory solid tumors.
Study Rationale:The mechanism of action for SGN1 is based on the fact that most tumors are methionine dependent. SGN1 is designed to be used as a tumor therapeutic bacterium that can preferentially replicate and accumulate in tumors and starve them of essential amino acids by delivering the oncolytic enzyme L-M... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
04/28/2025
Locations: Health Chao Family Comprehensive Cancer Center, Orange, California
Conditions: Advanced Solid Tumor
Prospective, Multicenter, Case-Control Analysis of the VersaTie Posterior Fixation System to Prevent Proximal Junctional Failure in Long Posterior Spinal Fusion Constructs for Adult Patients
Recruiting
Prospective, Multicenter, Case-Control Analysis of the VersaTie Posterior Fixation System to Prevent Proximal Junctional Failure in Long Posterior Spinal Fusion Constructs for Adult Patients
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/28/2025
Locations: Shiley Center for Orthopaedic Research and Education at Scripps Clinic, La Jolla, California
Conditions: Adult Spinal Deformity, Scoliosis, Kyphosis
ShOrt neCK AAA RAndomized Trial - ESAR and FEVAR: SOCRATES
Recruiting
The aim of this randomized study is to compare the safety and performance of EndoVascular Aneurysm Repair with ESAR using Endurant + Heli-FX™ EndoAnchor™ system and FEVAR using customizable grafts from Cook (Zenith Fenestrated Graft) and Terumo (Fenestrated Anaconda Graft) for the treatment of aortic aneurysms with short aortic neck (4 to 15mm).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/28/2025
Locations: UCSD Medical Center Hillcrest, La Jolla, California
Conditions: Aortic Aneurysm, Abdominal
Registry of Participants With Generalized Myasthenia Gravis Treated With Alexion C5 Inhibition Therapies (C5ITs)
Recruiting
Long-term, multicenter, multinational, observational, registry of patients with gMG that is designed to collect data on clinical outcomes and safety in patients prescribed Alexion C5 inhibitor therapies (C5IT) such as eculizumab (Soliris®) and ravulizumab (Ultomiris®).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/28/2025
Locations: Clinical Trial Site, Fresno, California
Conditions: Generalized Myasthenia Gravis
An Observational Study of Patients With Chronic Hepatitis B (CHB) Infection
Recruiting
The TARGET-HBV study engages an observational research design to conduct a comprehensive review of outcomes for patients with CHB infection. The initial phase of the study that enrolled patients treated with tenofovir alafenamide (TAF) was successfully completed. The current protocol (Amendment 1) describes the second phase of the study that will engage research activities for patients being managed for CHB in usual clinical practice in the US and Canada. The study addresses important clinical q... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/28/2025
Locations: Asian Pacific Liver Center at Coalition of Inclusive Medicine, Los Angeles, California
Heart Attack Research Program- Imaging Study
Recruiting
The HARP study is a multi-center, diagnostic observational study employing standardized imaging protocols in patients with MINOCA (MI with Non Obstructive Coronary Arteries) to determine the underlying diagnosis in each participant. Participants will be followed for recurrent clinical events, every 6 months, for a maximum of 10 years.
Gender:
ALL
Ages:
Between 21 years and 99 years
Trial Updated:
04/28/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Myocardial Infarction
Clinical Study of Ivonescimab for First-line Treatment of Metastatic NSCLC Patients With High PD-L1
Recruiting
Clinical study of ivonescimab for first-line treatment of metastatic NSCLC patients with high PD-L1. Evaluating overall survival and progression free survival.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/25/2025
Locations: Clinical Study Site, Cerritos, California
Conditions: Non-Small Cell Lung Cancer
AZD0486 as Monotherapy in Participants With Relapsed/Refractory (R/R) B-cell NHL
Recruiting
This is a Phase 2 global, multi-center, open-label study to assess the efficacy, safety and tolerability of AZD0486 monotherapy in adult participants with relapsed/refractory B-cell non-Hodgkin lymphoma (NHL) who have received at least two prior lines of therapies. The study has 2 Modules: Module 1 for FL and Module 2 for DLBCL.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
04/25/2025
Locations: Research Site, Duarte, California
Conditions: B-cell Non-Hodgkin Lymphoma, Follicular Lymphoma (FL), Diffuse Large B-Cell Lymphoma (DLBCL)
3145 - 3156 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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