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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.
3565 - 3576 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
Cephea Early Feasibility Study
Recruiting
The objective of this study is to evaluate the preliminary safety and effectiveness of the Cephea Mitral Valve System for the treatment of symptomatic patients with mitral valve disease (including mitral regurgitation, mitral stenosis and mixed mitral valve disease) in whom transcatheter therapy is deemed more appropriate than open heart surgery.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/20/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Mitral Regurgitation
CytoreductiveSurgery & HIPEC W/Gemcitabine+Chemotherapy W/Dacarbazine in Uterine Leiomyosarcoma
Recruiting
The purpose of this study is to find out if giving a dose of heated chemotherapy in the abdomen immediately after surgery that is done to remove uterine leiomyosarcoma type of cancer will help lower the risk of the cancer coming back in the future.
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
03/20/2025
Locations: Stanford University, Stanford, California
Conditions: LMS - Leiomyosarcoma, Uterine Leiomyosarcoma
An International, Multicenter, Prospective Registry on Post-traumatic Long Bones Defects
Recruiting
Long bone defect (LBD) is defined as a focalized loss of bone tissue in any long bone of the upper or lower extremity. Long bone defects are a complex problem, that may arise as a complication of many different pathologies, such as trauma, tumors or infection. Whereas post-traumatic defects are the largest group.
Reports estimate that there are almost 4 million bone grafting procedures worldwide per year. However, limb reconstruction in the context of a bony defect is challenging and up to date... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/20/2025
Locations: Cedar Sinai, Los Angeles, California
Conditions: Limb Fracture, Bone Loss
Factors Affect Outcomes in Cardiovascular Surgery
Recruiting
Identify factors that contribute to perioperative morbidity and mortality in patients undergoing cardiac surgery that involves cardiopulmonary bypass.
Identify factors that affect perioperative morbidity and mortality in patients undergoing cardiac surgery.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/20/2025
Locations: University of California Davis Health System, Sacramento, California
Conditions: Coronary Artery Disease, Valvular Diseases, Vascular Diseases
A Study to Investigate the Immunogenicity, Reactogenicity, and Safety of mRNA-1083 (Influenza and COVID-19) Vaccine in Adults ≥18 to <65 Years of Age
Recruiting
The purpose of this study is to evaluate the immunogenicity, reactogenicity, and safety, of mRNA-1083 multicomponent influenza and COVID-19 vaccine in adults ≥18 to \<65 years of age.
Gender:
ALL
Ages:
Between 18 years and 64 years
Trial Updated:
03/19/2025
Locations: Artemis Research (Headlands), San Diego, California
Conditions: Influenza, SARS-CoV-2
Embryonal Tumor With Multilayered Rosettes
Recruiting
This is an open-label, comprehensive, iterative investigation of evaluating the use of induction chemotherapy, high-dose chemotherapy, and focal radiation therapy in children with newly diagnosed Embryonal Tumor With Multilayered Rosettes (ETMR).
Gender:
ALL
Ages:
All
Trial Updated:
03/19/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Embryonal Tumor With Multilayered Rosettes, Embryonal Tumor With Multilayered Rosettes, Nos
Efficacy and Safety Study of Halneuron in the Treatment of Chemotherapy-Induced Neuropathic Pain
Recruiting
A randomized study to determine safety and efficacy of single subcutaneous (SC) administration of HAL treatment in patients with CINP.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/19/2025
Locations: APEX Research Group, LLC, Fair Oaks, California
Conditions: Chemotherapy Induced Neuropathic Pain
Comparison of Whole Body DWI to FDG PET
Recruiting
This is a single arm prospective trial that evaluates whole body diffusion weight imaging (DWI) compared to 18F-fludeoxyglucose (FDG) Positron Emission Tomography with Magnetic resonance imaging (PET/MRI) in participants with known metastatic cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/19/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Metastatic Cancer
Safety, Tolerability, and Pharmacokinetics of Lumateperone Long-Acting Injectable Formulations in Patients With Schizophrenia or Schizoaffective Disorder
Recruiting
Study ITI-007-037 is a Phase 1b, open-label study to evaluate the safety, tolerability, and PK of lumateperone long-acting injectable (LAI) formulations after a single intramuscular injection in patients with stale schizophrenia or schizoaffective disorder.
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
03/19/2025
Locations: Clinical Site 2, Los Alamitos, California
Conditions: Schizophrenia or Schizoaffective
THRIVE- THerapeutic IntravasculaR Ultrasound (TIVUS™) REnal Denervation System Versus Sham for the Adjunctive Treatment of Hypertension
Recruiting
The primary objective of the THRIVE Pivotal study is to demonstrate the adjunctive effectiveness and the safety of the TIVUS system in:
1. subjects with hypertension (HTN) receiving up to 2 anti-hypertensive drugs of different classes in whom the anti-hypertensive medications will be stopped for a 4-week wash-out period before RDN/Sham procedure and during 2 months after procedure.
2. subjects with controlled hypertension receiving up to 2 anti-hypertensive drugs of different classes and who ac... Read More
Gender:
ALL
Ages:
Between 22 years and 75 years
Trial Updated:
03/19/2025
Locations: Cedar-Sinai Medical Center, Los Angeles, California
Conditions: Hypertension
Regulatory Clearance of the Glide Control Strategy for Upper Limb Prostheses
Recruiting
The investigators will test the following hypothesis: Use of Glide results in improved functional performance, satisfaction, and usage metrics as compared to use of a standard Direct Control (DC) prosthesis.
This study will compare the use of Glide \[Experimental\] prosthesis with a DC \[Standard\] prosthesis in a clinical setting and in unsupervised daily activity. We will follow a multiple baseline design, specifically an AB design. Each of the subjects will use the Experimental and Standard... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/19/2025
Locations: Advanced Arm Dynamics, Redondo Beach, California
Conditions: Amputation, Upper Limb
Fluoroethyltyrosine for the Evaluation of Intracranial Neoplasm
Recruiting
This is a single center study investigating the use of Fluoroethyltyrosine (FET) in the detection of brain tumors. FET accumulates in malignant cells within intracranial neoplasms and can be used to detect recurrent disease and characterize grade of glial neoplasms.
Gender:
ALL
Ages:
4 years and above
Trial Updated:
03/19/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Intracranial Neoplasm
3565 - 3576 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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