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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.
2065 - 2076 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
A Study Comparing Abemaciclib Plus Temozolomide to Temozolomide Monotherapy in Children and Young Adults With High-grade Glioma Following Radiotherapy
Recruiting
The purpose of this study is to measure the benefit of adding abemaciclib to the chemotherapy, temozolomide, for newly diagnosed high-grade glioma following radiotherapy.
Your participation could last approximately 11 months and possibly longer depending upon how you and your tumor respond.
Gender:
ALL
Ages:
Between 0 years and 20 years
Trial Updated:
07/04/2025
Locations: UC San Diego Moores Cancer Center, La Jolla, California
Conditions: Glioma
A Study to Test the Effects and Safety of Riliprubart in People With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) for Which the Usual Treatments do Not Work
Recruiting
The purpose of the study is to evaluate efficacy of riliprubart compared to placebo in adult participants with CIDP whose disease is refractory to standard of care. The study duration will be for a maximum of 111 weeks including screening, treatment phases, and follow-up.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/04/2025
Locations: USC Norris Comprehensive Cancer Center- Site Number : 8400002, Los Angeles, California
Conditions: Chronic Inflammatory Demyelinating Polyradiculoneuropathy, Polyneuropathy, Inflammatory Demyelinating, Chronic
A Study to Assess the Adverse Events and Change in Disease Activity of Oral Atogepant Tablets in Pediatric Participants (6-17 Years of Age) With Episodic Migraine
Recruiting
A migraine is a moderate to severe headache on one side of the head. A migraine attack is a headache that may be accompanied by throbbing, nausea, vomiting, sensitivity to light and sound, or other symptoms. A number of treatments are available for adults with migraine but there are limited approved treatments available for pediatric participants. The main goal of the study is to evaluate the safety and efficacy (how well treatment works) of a low-dose and high-dose of atogepant in pediatric par... Read More
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
07/04/2025
Locations: Advanced Research Center /ID# 251381, Anaheim, California
Conditions: Episodic Migraine
Phase 3 Study of Anifrolumab in Adult Patients With Active Proliferative Lupus Nephritis
Recruiting
The purpose of this study is to evaluate the efficacy and safety of IV antifrolumab in adult patients with Active Proliferative Lupus Nephritis
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
07/04/2025
Locations: Research Site, La Jolla, California
Conditions: Lupus Nephritis
A Study to Investigate Safety and Tolerability of TransCon IL-2 β/γ Alone or in Combination With Pembrolizumab and/or TransCon TLR7/8 Agonist or Other Anticancer Therapies in Adult Participants With Locally Advanced or Metastatic Solid Tumor Malignancies
Recruiting
TransCon IL-2 β/γ is an investigational drug being developed for treatment of locally advanced or metastatic solid tumors. This is a first-in-human, open-label, Phase 1/2, dose escalation and dose expansion study of TransCon IL-2 β/γ as monotherapy or in combination therapy in adult participants with advanced or metastatic solid tumors. Given the unique PK profile enabled by the TransCon technology, TransCon IL-2 β/γ presents the opportunity to enhance the therapeutic index of current IL-2 thera... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/04/2025
Locations: Ascendis Pharma Investigational Site, Los Angeles, California
Conditions: Advanced Solid Tumor, Locally Advanced Solid Tumor, Metastatic Solid Tumor, Platinum-resistant Ovarian Cancer, Post Anti-PD-1 Melanoma, 2L+ Cervical Cancer, Neoadjuvant Melanoma, Neoadjuvant Non-Small Cell Lung Cancer, Post Anti-PD-(L)1 Non-Small Cell Lung Cancer, Post Anti-PD-(L)1 Small Cell Lung Cancer, Third Line or Later (3L+) HER2+ Breast Cancer, Second or Third Line (2L/3L) Cervical Cancer, Third-line or Later (3L+) Platinum-resistant Ovarian Cancer (PROC)
Treating Adolescent Obsessive Compulsive Disorder With Transcranial Magnetic Stimulation
Recruiting
This is a pilot study to examine the tolerability, safety and early efficacy of two forms of transcranial magnetic stimulation (TMS) for treating adolescents with Obsessive Compulsive Disorder (OCD) who have experienced limited improvements with usual treatments for OCD in adolescents.
The project's primary goal is to examine whether adolescents can complete 3 consecutive weeks of TMS administered 5 days per week, and to describe the type of and how common individual side effects with TMS occur... Read More
Gender:
ALL
Ages:
Between 13 years and 17 years
Trial Updated:
07/03/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Obsessive-Compulsive Disorder
A Study of 2 Doses of EYE103 Compared With Ranibizumab (0.5 mg) in Participants With DME
Recruiting
EYE-RES-103 is a randomized, double masked pivotal study to evaluate the efficacy and safety of 2 dose levels of EYE103 in comparison with the active control, ranibizumab, in patients with diabetic macular edema (DME).
In the first year, all 3 treatment groups will be treated every 4 weeks with either EYE103 or ranibizumab. Beginning at Year 2, the frequency of treatment for participants will shift based on a personalized treatment interval algorithm.
Approximately 960 participants will be ent... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/03/2025
Locations: Bakersfield, CA, Bakersfield, California
Conditions: Diabetic Macular Edema (DME)
Efficacy and Safety of Petrelintide in Participants With Overweight or Obesity and Type 2 Diabetes (ZUPREME 2)
Recruiting
The main purpose of this study is to investigate efficacy and safety of three doses of petrelintide versus placebo in participants with overweight or obesity and type 2 diabetes.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/03/2025
Locations: AMCR Institute, Inc., Escondido, California
Conditions: Overweight, Type 2 Diabetes, Obesity
A Study to Assess the Adverse Events of Intramuscular Injections of AGN-151586 and OnabotulinumtoxinA in Adult Participants for the Change of Glabellar Lines (GL)
Recruiting
The objective of this Phase 1 study is to assess the safety and efficacy of single treatment of AGN-151586 and of OnabotulinumtoxinA in the glabellar complex of participants with moderate to severe glabellar lines (GL).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/03/2025
Locations: Eye Research Foundation /ID# 270827, Newport Beach, California
Conditions: Glabellar Lines
A Study of TAK-411 in Adults With Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP)
Recruiting
CIDP is an autoimmune disease. This means that the body's germ fighting (immune) system attacks itself. In CIDP, the immune system attacks the protective covering around the nerves called myelin. Over time, these nerves lose their ability to send signals to the muscles in the body. This leads to muscle weakness and loss of sensation in arms and legs among other symptoms. Participants with CIDP can be treated with a protein called immunoglobulin (or IG).
TAK-411 is a special type of immune globu... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/03/2025
Locations: University of California San Diego, La Jolla, California
Conditions: Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP)
Multicenter Study of Lumateperone for the Treatment of Irritability Associated With Autism Spectrum Disorder (ASD) in Pediatric Patients
Recruiting
This is a multicenter, randomized, double-blind, placebo-controlled study in pediatric patients aged 5 to 17 years with a primary diagnosis of irritability associated with Autism Spectrum Disorder (ASD) based on Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition Text Revision (DSM-5-TR) and confirmed by the Kiddie Schedule for Affective Disorders and Schizophrenia Present and Lifetime Version (K-SADS-PL).
Gender:
ALL
Ages:
Between 5 years and 17 years
Trial Updated:
07/03/2025
Locations: Clinical Site, Imperial, California
Conditions: Irritability Associated With Autism Spectrum Disorder
CMV-TCIP Directed Letermovir Prophylaxis After Allo-SCT
Recruiting
This is a phase 2, prospective cohort clinical trial evaluating the utilization of CMV T Cell Immunity Panel (CMV-TCIP) assay to guide the duration of primary CMV prophylaxis in CMV-seropositive recipients of allogeneic stem cell transplant or recipients receiving a stem cell graft from a CMV serology positive donor.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/03/2025
Locations: Chao Family Comprehensive Cancer Center, University of California Irvine, Orange, California
Conditions: CMV, Allogeneic Stem Cell Transplantation
2065 - 2076 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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