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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.
2197 - 2208 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).
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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
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
A Study to Evaluate XEN1101 as Adjunctive Therapy in Primary Generalized Tonic-Clonic Seizures
Recruiting
This is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the clinical efficacy, safety, and tolerability of XEN1101 administered as adjunctive treatment in primary generalized tonic-clonic seizures (PGTCS).
Gender:
ALL
Ages:
12 years and above
Trial Updated:
06/27/2025
Locations: Brain Science Research Institute, Los Angeles, California
Conditions: Primary Generalized Tonic-Clonic Seizures
Life's End Benefits of cannaBidiol and tetrahYdrocannabinol
Recruiting
This is a multicenter randomized double-blind placebo-controlled Phase 2 study of an oral combination of tetrahydrocannabinol (THC) and cannabidiol (CBD) compared to placebo over 12 weeks. This study is designed to test the hypothesis that treatment with an oral combination of THC/CBD will reduce agitation hospice care-eligible patients with agitation and dementia as measured by the Cohen Mansfield Agitation Inventory (CMAI) when compared to placebo at 2 weeks.
This study will enroll approximat... Read More
Gender:
ALL
Ages:
40 years and above
Trial Updated:
06/27/2025
Locations: The Neuron Clinic, Chula Vista, California
Conditions: Agitation, Dementia
A Randomized Study of XEN1101 Versus Placebo in Focal-Onset Seizures
Recruiting
The X-TOLE2 Phase 3 clinical trial is a randomized, double-blind, placebo-controlled study that will evaluate the clinical efficacy, safety and tolerability of XEN1101 administered as adjunctive therapy in focal-onset seizures.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: Brain Science Research Institute, Los Angeles, California
Conditions: Focal Onset Seizures
Fisetin to Improve Physical Function in Stage I-III Breast Cancer Survivors
Recruiting
This phase II trial tests whether fisetin works to improve physical function in women who have received chemotherapy for stage I-III breast cancer treatment. Fisetin is a naturally occurring substance that is found in strawberries and other foods. Fisetin eliminates cells that have undergone a process called senescence. Senescence is when a cell ages and permanently stops dividing but does not die. Over time, large numbers of these cells build up in tissues throughout the body and can release ha... Read More
Gender:
FEMALE
Ages:
All
Trial Updated:
06/27/2025
Locations: UCLA Health Cancer Care in Alhambra, Alhambra, California
Conditions: Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage I Breast Cancer AJCC v8
A Study of mRNA-1647 Cytomegalovirus Vaccine in Healthy Participants 9 to 15 Years of Age and Participants 16 to 25 Years of Age
Recruiting
The main purpose of study is to evaluate the safety and immunogenicity of different dose levels of mRNA-1647 versus control in healthy cytomegalovirus (CMV)-seronegative and CMV-seropositive female and male participants 9 to 15 years of age. In addition, mRNA-1647 will be evaluated in female participants 16 to 25 years as a comparator cohort.
Gender:
ALL
Ages:
Between 9 years and 25 years
Trial Updated:
06/27/2025
Locations: Paradigm Clinical Research Institute Inc - ClinEdge - PPDS, La Mesa, California
Conditions: Cytomegalovirus
Mocravimod as Adjunctive and Maintenance Treatment in AML Patients Undergoing Allo-HCT
Recruiting
This is a multi-center, randomized, double-blinded, placebo controlled trial.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
06/27/2025
Locations: City of Hope Comprehensive Cancer Center - Duarte, Duarte, California
Conditions: Adult Acute Myeloid Leukemia
Virtually Supervised Exercise for Kidney Transplant Candidates
Recruiting
This study is examining whether a virtually supervised exercise program can improve physical function in persons who are awaiting kidney transplant. The investigators will compare the results to a similar group of persons who receive a health education program.
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
06/27/2025
Locations: Stanford University, Palo Alto, California
Conditions: Physical Disability
A Study to Evaluate KIN-2787 in Participants With BRAF and/or NRAS Mutation Positive Solid Tumors
Recruiting
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics (PK), and preliminary efficacy of KIN-2787 in adults with BRAF/NRAS-mutated advanced or metastatic solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: The Angeles Clinic, Los Angeles, California
Conditions: Solid Tumor, Adult, Non-small Cell Lung Cancer, Melanoma
Encoding Temporal Fine Structure for Cochlear Implants
Recruiting
The goal of this study is to improve music and speech perception for cochlear implant users. Presently, most cochlear implants discard the temporal fine structure of sound, which is information that is widely believed to contribute to both music and speech perception. The proposed work examines perceptual and physiological changes that occur once this information is provided to cochlear implant users in a clear and consistent manner.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Hearing Loss, Cochlear Implants
Mogamulizumab + Low-Dose Total Skin Electron Beam Tx in Mycosis Fungoides & Sézary Syndrome
Recruiting
The purpose of this study is to determine the efficacy of the combination of LD-TSEBT and mogamulizumab in patients with MF and SS. And to evaluate the secondary measures of clinical benefit of the combination therapy and to evaluate the safety and tolerability of the combination in patients with MF and SS.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: Stanford Cancer Center, Stanford, California
Conditions: Sezary Syndrome, Mycosis Fungoides
Immediate Postpartum Glucose Tolerance Testing
Recruiting
The objective of this study is to compare the accuracy of a 2hr glucose tolerance test administered during the postpartum hospitalization with the standard of care glucose tolerance testing (administered at 6 weeks postpartum). The primary hypothesis is that the glucose tolerance test administered in the postpartum period will be accurate and will improve compliance with postpartum testing for gestational diabetics.
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: Long Beach Memorial Medical Center/Miller Children's and Women's Hospital, Long Beach, California
Conditions: Gestational Diabetes
Music Appreciation After Cochlear Implantation
Recruiting
This project aims to characterize the emergence of music appreciation in people who have suffered hearing loss and have been provided with partial restoration of hearing through cochlear implantation. Music appreciation is complex and transverses multiple domains including hearing acuity, speech and language acquisition, and quality of life. By studying these relationships in people who have been given partial hearing restoration, the investigators will clarify the role of music for promoting re... Read More
Gender:
ALL
Ages:
13 years and above
Trial Updated:
06/27/2025
Locations: Keck School of Medicine of USC, Los Angeles, California
Conditions: Hearing Loss, Cochlear Implants
2197 - 2208 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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