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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.
3697 - 3708 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
Study of mRNA-4359 Administered Alone and in Combination With Immune Checkpoint Blockade in Participants With Advanced Solid Tumors
Recruiting
The primary goal of this study is to assess the safety and tolerability of mRNA-4359 administered alone and in combination with pembrolizumab.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/07/2025
Locations: UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, California
Conditions: Advanced Solid Tumors
A Study to Evaluate the Safety and Immunogenicity of the mRNA COVID-19 Vaccines in Healthy Children Between 6 Months to Less Than 6 Years of Age
Recruiting
This study will evaluate the safety and immunogenicity of the mRNA-1273.214 vaccine for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant of concerns (VOCs) in participants aged 6 months to \<6 years, when administered as a primary series in SARS-CoV-2 vaccine-naïve participants (Part 1) and a single booster dose (BD) given to participants who previously received 2 doses of the mRNA-1273 vaccine as a primary series (Part 2); and will evaluate the safety and immunogenicity of t... Read More
Gender:
ALL
Ages:
Between 6 months and 5 years
Trial Updated:
03/07/2025
Locations: Velcocity Clinical Research, Banning, California
Conditions: SARS-CoV-2
Recording of Intraoperative Spinal Cord Stimulation and Monitoring
Recruiting
Opioid overdose suppresses brainstem respiratory circuits, causes apnea, and may result in death. Epidural electrical stimulation (EES) at the cervical spinal cord facilitated motor activity in rodents and humans, and we hypothesized that EES of the cervical spinal cord could antagonize opioid-induced respiratory depression in humans. In this study, we will stimulate the spinal cord during surgery and assess its effects on respiratory function in human patients.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/07/2025
Locations: University of California, Los Angeles, Los Angeles, California
Conditions: Cervical Stenosis, Disk, Herniated, Spondylosis
Neuromodulation to Improve Respiratory Function in Cervical Spinal Cord Injury
Recruiting
This is a phase 1 study of safety and feasibility of cervical spinal cord stimulator implantation in cervical SCI subjects who are ventilator dependent. The Investigators will be focusing on the safety and feasibility of this approach. Participants may qualify for the study if they are male or female 18-75 years old, are at least 1 year after original injury, have injury at C2 to C7 level, and dependent on mechanical ventilation to help them breathe. Additionally, they need to be able to attend... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
03/07/2025
Locations: Semel Institute of Neuroscience at UCLA, Los Angeles, California
Conditions: Spinal Cord Injuries
A Phase I Study of IAG933 in Patients With Advanced Mesothelioma and Other Solid Tumors
Recruiting
The purpose of this study is to characterize the safety and tolerability of IAG933 in patients with mesothelioma, NF2/LATS1/LATS2 mutated tumors and tumors with functional YAP/TAZ fusions and to identify the maximum tolerated dose and/or recommended dose.
Gender:
ALL
Ages:
Between 18 years and 120 years
Trial Updated:
03/07/2025
Locations: University of California LA, Los Angeles, California
Conditions: Mesothelioma
The HPV 9-10 Trial: Early Initiation of HPV Vaccination
Recruiting
Every year, thousands of Americans die from cancers related to human papillomavirus (HPV). The vast majority of those deaths could be prevented with a safe and effective vaccine, yet many parents choose not have their children vaccinated when it is recommended at age 11 or 12. In this study, we will examine in a randomized trial whether earlier initiation of the vaccine at age 9-10 years will result in less parental refusal and higher rates of full vaccination at younger ages, before early sexua... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/07/2025
Locations: University of California at Los Angeles, Los Angeles, California
Conditions: HPV
Metformin for Pulmonary Hypertension HFpEF
Recruiting
The main objective of this study is to determine the clinical efficacy of metformin versus placebo and the therapeutic response with regards to functional capacity and hemodynamics in PH-HFpEF.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/07/2025
Locations: UCSF Medical Center, San Francisco, California
Conditions: Pulmonary Hypertension, Heart Failure
Study to Evaluate Safety, Tolerability, and Optimal Dose of Candidate GBM Vaccine VBI-1901 in Recurrent GBM Subjects
Recruiting
The purpose of this study is to assess the safety and tolerability of VBI-1901 in subjects with recurrent malignant gliomas (glioblastoma, or GBM).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/07/2025
Locations: University of California, Irvine, Irvine, California
Conditions: Glioblastoma Multiforme
Improving Bladder Function in SCI by Neuromodulation
Recruiting
This trial will investigate the safety and utility of spinal cord neuromodulation to improve urinary bladder function in the context of spinal cord injury.
Gender:
MALE
Ages:
Between 18 years and 45 years
Trial Updated:
03/07/2025
Locations: University of California, Los Angeles, Los Angeles, California
Conditions: Spinal Cord Injury
Optimizing Nutrition and Milk (Opti-NuM) Project
Recruiting
Early nutrition critically influences growth, neurodevelopment and morbidity among infants born of very low birth weight (VLBW), but current one-size-fits-all feeding regimes do not optimally support these vulnerable infants. There is increasing interest in "precision nutrition" approaches, but it is unclear which Human Milk (HM) components require personalized adjustment of doses. Previous efforts have focused on macronutrients, but HM also contains essential micronutrients as well as non-nutri... Read More
Gender:
ALL
Ages:
Between 1 hour and 21 days
Trial Updated:
03/06/2025
Locations: Stanford University, Palo Alto, California
Conditions: Very Low Birth Weight Baby, Early Nutrition and the Preterm Infant, Nutritional Requirements, Human Milk Fortification, Human Milk Microbiome, Human Milk Feeding, Human Milk Nutrition, Growth & Development
Using CTA Measures to Define Cardiac Risk In NFL Alumni
Recruiting
The GAMEFILM Registry is a post-market, multi-center, data collection study assessing the presence of CAD in NFL alumni.
Gender:
ALL
Ages:
All
Trial Updated:
03/06/2025
Locations: Stanford, Stanford, California
Conditions: Coronary Artery Disease (CAD), Heart Disease, Coronary Atherosclerosis
Role of Transposable Elements in Septic Immune Aging
Recruiting
The goal of this observational study is to learn about how transposable element levels affect the patient outcomes in sepsis. The main questions it aims to answer is:
1. Do transposable elements prematurely age the immune systems of patients with sepsis?
2. Do transposable elements correlate with increased mortality in patients with sepsis in the ICU?
3. Do transposable elements correlate with increased amount of secondary infections in patients with sepsis in the ICU?
Participants will have b... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
03/06/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Sepsis, Sepsis and Septic Shock, Sepsis With Multiple Organ Dysfunction (MOD), Sepsis With Acute Organ Dysfunction, Sepsis, Severe, Sepsis at Intensive Care Unit, Sepsis, Severe Sepsis and Septic Shock, Sepsis, Septic Shock
3697 - 3708 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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