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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.
2341 - 2352 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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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
MEASuRE: Metreleptin Effectiveness And Safety Registry
Recruiting
The study is a post-authorization, prospective, voluntary registry of patients treated with commercial metreleptin including, but not limited to, patients in the US and EEA.
Gender:
ALL
Ages:
All
Trial Updated:
06/20/2025
Locations: City of Hope, Duarte, California
Conditions: Generalised Lipodystrophy, Partial Lipodystrophy
Safety of a Single, Intravitreal Injection of 8.8M jCell (Famzeretcel) in Retinitis Pigmentosa (RP)
Recruiting
This study evaluates the safety of a single injection of jCell (famzeretcel) comprising 8.8 million (8.8M) retinal progenitor cells over a six-month study period in a cohort of adult subjects with RP. Additionally, changes in visual function will be evaluated at six months between the active treatment group (8.8M jCell) compared to sham-treated controls.
Gender:
ALL
Ages:
Between 18 years and 60 years
Trial Updated:
06/19/2025
Locations: California Retina Consultants, Bakersfield, California
Conditions: Retinitis Pigmentosa
PMN310 in Patients With Early Alzheimer's Disease (PRECISE-AD)
Recruiting
This Phase 1b study aims to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary efficacy of multiple IV infusions of PMN310 in patients with early Alzheimer's disease.
Gender:
ALL
Ages:
50 years and above
Trial Updated:
06/19/2025
Locations: Irvine Center for Clinical Research, Irvine, California
Conditions: Alzheimer Disease, Early Onset
Recruitment and Engagement in Care to Impact Practice Enhancement (RECIPE) for Sickle Cell Disease
Recruiting
The goal of this observational study is to help us understand more about the best ways to help individuals living with Sickle Cell Disease (SCD) get the best care. The main question it aims to answer is: How to find individuals unaffiliated from SCD specialist care use three distinct pathways? Once unaffiliated individuals are found using the pathways, Investigators will employ linkage coordinators (trained staff) to engage these patients in care. Participants will be asked to fill out an assess... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/19/2025
Locations: University of California, San Francisco (UCSF), Oakland, California
Conditions: Sickle Cell Disease
Study BT8009-230 in Participants With Locally Advanced or Metastatic Urothelial Cancer (Duravelo-2)
Recruiting
This is a global, multicenter, randomized, open-label study, with an adaptive design. The main objective of the study is to measure the efficacy and safety of BT8009 (zelenectide pevedotin) as monotherapy and in combination with pembrolizumab in participants with locally advanced or metastatic urothelial cancer (UC). The study includes a dose selection phase followed by an adaptive design continuation. The study is comprised of 2 cohorts. Cohort 1 will include participants who have not received... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/19/2025
Locations: Virginia K. Crosson Cancer Center at St. Jude Medical Center, Fullerton, California
Conditions: Metastatic Urothelial Cancer
JZP898 Intravenous Infusion as Monotherapy and Combination With Pembrolizumab in Adults With Advanced/Metastatic Solid Tumors
Recruiting
This Phase 1 first-in-human study will investigate the safety, tolerability, pharmacokinetics (PK), immunogenicity, and preliminary antitumor activity of JZP898 monotherapy as well as JZP898 in combination with pembrolizumab in adult participants with advanced or metastatic solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/19/2025
Locations: California Cancer Associates for Research and Excellence, Encinitas, California
Conditions: Advanced Solid Tumor, Metastatic Solid Tumor
iMOVE: Virtual Reality PT Versus Traditional PT
Recruiting
This pragmatic, crossover, randomized controlled study evaluates the efficacy of virtual reality assisted physical therapy (VRPT) for improving the physical activity of hospitalized children as compared to traditional physical therapy. This is a pilot study that will be used to identify patient populations that can benefit the most from VRPT and estimate this effect for future studies.
Patients with a significant neurological condition, major developmental disability, active infection of the fa... Read More
Gender:
ALL
Ages:
Between 10 years and 25 years
Trial Updated:
06/19/2025
Locations: Lucile Packard Childrens Hospital Stanford, Palo Alto, California
Conditions: Physical Health
Paclitaxel Coated Balloon for the Treatment of Chronic bEnigN sTricture- Esophagus
Recruiting
To evaluate the safety and efficacy of the ProTractX3™ DCB for the treatment of benign esophageal strictures.
Gender:
ALL
Ages:
22 years and above
Trial Updated:
06/19/2025
Locations: University of California, Irvine, Irvine, California
Conditions: Esophageal Stricture
Paclitaxel Coated Balloon for the Treatment of Chronic bEnigN sTricture- Bowel
Recruiting
To determine the safety and efficacy of GIE Medical's ProTractX3™ TTS DCB for the treatment of recurrent benign bowel strictures.
Gender:
ALL
Ages:
22 years and above
Trial Updated:
06/19/2025
Locations: University of California, Irvine, Irvine, California
Conditions: Bowel; Stricture
Real-world Clinical Outcomes of the MITRIS RESILIA Mitral Valve
Recruiting
Collect real-world data on acute and long-term safety and performance of the MITRIS RESILIA Mitral Valve, Model 11400M, in subjects requiring replacement of their native or prosthetic mitral valve with or without concomitant procedures.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/19/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Mitral Stenosis, Mitral Valve Insufficiency
RESPONDER-HF Trial
Recruiting
Multicenter, Prospective, Randomized, Sham Controlled, Double Blinded Clinical Trial, with; 1:1 randomization
Gender:
ALL
Ages:
40 years and above
Trial Updated:
06/19/2025
Locations: Scripps Clinic, La Jolla, California
Conditions: Heart Failure, Heart Failure, Diastolic
Safety and Efficacy Study of Contezolid Acefosamil and Contezolid Compared to Linezolid Administered Intravenously and Orally to Adults With Moderate or Severe Diabetic Foot Infections (DFI)
Recruiting
This is a Phase 3, multicenter, randomized, double-blind, safety and efficacy study of contezolid acefosamil (IV)/contezolid (PO) compared with linezolid (IV and PO) administered for a total of 14 to 28 days in adult subjects with moderate or severe DFI.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/19/2025
Locations: New Hope Research Development, Corona, California
Conditions: Diabetic Foot Infection
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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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