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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.
2125 - 2136 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
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
SCOPE: Observational Study of the Consequences of the Protease Inhibitor Era
Recruiting
SCOPE is an observational, prospective study of HIV-1 infected volunteers designed to provide a specimen bank of samples with carefully characterized clinical data. SCOPE specimens will be used to examine multiple questions involving virologic, immunologic, and host factors involved in HIV-1 infection, progression, non-progression, response to treatment, control of HIV-1 virus, and evolution of drug resistance.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/02/2025
Locations: San Francisco General Hospital, San Francisco, California
Conditions: HIV Infections
Investigating HepQuant DuO Test as a Biomarker in Alcohol-related Liver Disease
Recruiting
This is a study to measure liver recovery in patients with recent alcohol-associated liver injury by assessing liver function and physiology using HepQuant DuO. The HepQuant DuO Test is a blood-based test that involves a drink of a natural compound, cholate, and 2 blood samples at 20 and 60 minutes. The study team is collecting clinical and laboratory data to better monitor and treat patients who have been affected by alcohol-associated liver disease. The study has 4 visits at an outpatient clin... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/01/2025
Locations: Stanford University Dept. of Medicine -Gastroenterology & Hepatology, Redwood City, California
Conditions: Alcoholic Hepatitis, Alcohol-related Liver Disease
A Study Assessing KB803 Compared to Matching Placebo for the Treatment and Prevention of Corneal Abrasions in Dystrophic Epidermolysis Bullosa
Recruiting
KB803-EYE-01 is a Phase 3 double-blind, intra-patient crossover study, to evaluate the safety and efficacy of KB803 versus matched placebo in pediatric and adult subjects with recurrent corneal abrasions due to dystrophic epidermolysis bullosa (DEB).
Gender:
ALL
Ages:
6 months and above
Trial Updated:
07/01/2025
Locations: Mission Dermatology Center, Rancho Santa Margarita, California
Conditions: Dystrophic Epidermolysis Bullosa, DEB - Dystrophic Epidermolysis Bullosa, Recessive Dystrophic Epidermolysis Bullosa, Dominant Dystrophic Epidermolysis Bullosa
A Study of LY3981314 in Healthy Participants
Recruiting
The main purpose of this study is to investigate the safety of LY3981314 when administered subcutaneously (SC) (under the skin), and how it's processed in the body.
The study will last approximately 25 weeks, excluding a screening period with an optional extension to approximately 49 weeks for qualifying participants.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
07/01/2025
Locations: CenExel ACT, Anaheim, California
Conditions: Healthy
Study for AZD4360 in Participants With Advanced Solid Tumours
Recruiting
The purpose of this study is to evaluate the safety, tolerability, PK, immunogenicity, pharmacodynamics, and preliminary efficacy of AZD4360 in adult participants with locally advanced or metastatic solid tumours selected for expression of CLDN18.2.
Gender:
ALL
Ages:
Between 18 years and 130 years
Trial Updated:
07/01/2025
Locations: Research Site, Santa Monica, California
Conditions: Gastric Cancer, Gastroesophageal Junction Cancer, Biliary Tract Cancer, Pancreatic Ductal Adenocarcinoma
A Study of LY3457263 Compared With Placebo in Participants With Type 2 Diabetes on a Stable Dose of Semaglutide or Tirzepatide
Recruiting
The purpose of this study is to measure the change in hemoglobin A1c (HbA1c) with LY3457263 compared with placebo in participants with type 2 diabetes who are not at HbA1c goal when treated with a stable dose of semaglutide or tirzepatide. Participation in the study will last about 9 months.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
07/01/2025
Locations: Wolverine Clinical Trials, Santa Ana, California
Conditions: Type 2 Diabetes
A Study to Measure the Effects of Using Tradipitant on Nausea and Vomiting After GLP-1R Agonist Use
Recruiting
The goal of this study is to measure the effects of using Tradipitant after GLP-1R agonist use on nausea and vomiting in healthy overweight, class I, or class II obese volunteers. The study is placebo-controlled with two treatment arms.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
07/01/2025
Locations: Vanda Investigational Site, Los Angeles, California
Conditions: Obesity
A Study of Novel Study Interventions and Combinations in Participants With Colorectal Cancer
Recruiting
The main purpose of this study is to evaluate the safety and efficacy of novel study interventions and combinations in participants with Colorectal Cancer (CRC).
Gender:
ALL
Ages:
Between 18 years and 130 years
Trial Updated:
07/01/2025
Locations: Research Site, Los Angeles, California
Conditions: Metastatic Colorectal Cancer
The JenaValve ALIGN-AR LVAD Registry
Recruiting
To evaluate the safety and effectiveness of the JenaValve Trilogy™ Heart Valve System for transcatheter aortic valve replacement (TAVR) in subjects with continuous flow left ventricular assist devices (cfLVAD) and clinically significant aortic regurgitation (AR) who are indicated for TAVR
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/01/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Aortic Regurgitation, Aortic Valve Insufficiency, Aortic Insufficiency, Aortic Valve Disease, Left Ventricular Dysfunction
BOOM-IBD2 Pivotal Clinical Trial
Recruiting
The BOOM-IBD2 clinical trial is designed to evaluate the effectiveness of sacral neuromodulation for the treatment of IBD.
Gender:
ALL
Ages:
Between 18 years and 85 years
Trial Updated:
07/01/2025
Locations: Center for Colorectal Innovation, Los Angeles, California
Conditions: Ulcerative Colitis, Inflammatory Bowel Diseases
Amplitude Vascular Systems (AVS) Lithotripsy POWER PAD 2 Trial
Recruiting
POWER PAD 2 is a prospective, single-arm, multicenter, non-randomized clinical study designed to demonstrate the safety and effectiveness of the Amplitude Vascular Systems (AVS) Pulse Intravascular Lithotripsy™ (Pulse IVL™) System for treatment of calcified (moderate to severe), stenotic, superficial femoral and popliteal arteries in patients with peripheral arterial disease.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/01/2025
Locations: Vascular and Interventional Specialists of Orange County, Orange, California
Conditions: Peripheral Arterial Disease (PAD)
Short-term Circuit Training on Muscle Mass and Quality of Life in Sedentary Postmenopausal Women
Recruiting
The purpose of this graduate student research study is to provide healthcare professionals with evidence of the potential of circuit strength training in improving the physical and psychosocial well-being of postmenopausal women.
Gender:
ALL
Ages:
Between 50 years and 75 years
Trial Updated:
07/01/2025
Locations: Loma Linda University, Loma Linda, California
Conditions: Postmenopausal
2125 - 2136 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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