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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.
1789 - 1800 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
Paid Clinical Studies Nationwide
Recruiting
Nationwide clinical trials offered in your area. Some trials offering up to several thousand dollars in compensation for participation.
Featured Trial
Chronic Cough Research Study
Recruiting
Are you tired of living with chronic cough? Our research study is now looking to enroll people from all backgrounds to help research potential new treatment options for chronic cough.
You are under no obligation to take part and health insurance is not required. Find out more today! We’d love to hear from you!
You are under no obligation to take part and health insurance is not required. Find out more today! We’d love to hear from you!
Conditions:
Chronic Cough
Refractory or Unexplained Chronic Cough
Cough
Asthma
Sinusitis
Featured Offer
Lose Weight with GLP-1 Medications
Recruiting
Policy Lab has partnered with OnlineSemaglutide.org to offer trusted access to semaglutide and other GLP-1 medications, including generic alternatives to Ozempic® and Wegovy®.
GLP-1 medications are scientifically backed to help individuals achieve significant weight loss—on average, 15-20% of body weight within a year.
As a valued user, you’re eligible for $100 off your first program with code policy-lab-100.
GLP-1 medications are scientifically backed to help individuals achieve significant weight loss—on average, 15-20% of body weight within a year.
As a valued user, you’re eligible for $100 off your first program with code policy-lab-100.
Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Featured Trial
Stroke Clinical Study
Recruiting
A clinical study for people that suffer with Stroke
Conditions:
Stroke
Featured Trial
Chronic Kidney Disease (CKD) Clinical Study
Recruiting
A clinical study for people that suffer with Chronic Kidney Disease (CKD)
Conditions:
Chronic Kidney Disease (CKD)
Radiocaine Safety Study In Healthy Human Subjects
Recruiting
This is a Phase 1, single-center, open-label study evaluating the safety, biodistribution, and radiation dosimetry of Radiocaine™, an investigational fluorine-18-labeled PET radiotracer designed to bind voltage-gated sodium channels in pain-related peripheral nerves. The study will enroll healthy adult volunteers and aims to inform future clinical development in pain imaging. Radiocaine™ is being developed as a potential imaging biomarker for the localization and quantification of pain.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: Stanford University School of Medicine, Stanford, California
Conditions: Healthy Subjects
A Study to See How Well Lebrikizumab Works in Adults and Adolescents With Moderate Atopic Dermatitis (Eczema) and High Itch Burden
Recruiting
The purpose of this study is to measure how well taking lebrikizumab alone works for participants with fewer places on the body with eczema (atopic dermatitis), but these places may be very itchy.
Participation in this study will last up to approximately 38 weeks (9 and a half months) including 24 weeks (6 months) of treatment.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/15/2025
Locations: California Dermatology & Clinical Research Institute, Encinitas, California
Conditions: Atopic Dermatitis
A Safety and Immunogenicity Study of CHIKV VLP Vaccine in Children.
Recruiting
The goal of this multi-center, randomized, double-blind, placebo-controlled study is to evaluate the safety and immunogenicity of CHIKV VLP Vaccine in children 2 to \<12 years of age.
Gender:
ALL
Ages:
Between 2 years and 11 years
Trial Updated:
07/15/2025
Locations: ARK Clinical Research, LLC, Fountain Valley, California
Conditions: Chikungunya Virus
Real-world Experience Using Nemolizumab in the Treatment of Moderate-to-Severe Atopic Dermatitis in Adolescents & Adults
Recruiting
The main aim of the study is to assess real-world effectiveness of nemolizumab in Atopic Dermatitis (AD) as measured by physician assessment and patient reported outcome (PRO) in clinical practice at Month 6.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/15/2025
Locations: Galderma Investigational Site - 7074, Corona, California
Conditions: Atopic Dermatitis
Platform Study to Evaluate the Efficacy and Safety of Investigational Compound(s) in Patients With Moderate to Severe Atopic Dermatitis
Recruiting
This trial is designed to evaluate multiple compounds in participants with moderate to severe atopic dermatitis (AD).
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
07/15/2025
Locations: Novartis Investigative Site, Los Angeles, California
Conditions: Atopic Dermatitis
Dose Range Finding Study to Assess Efficacy and Safety of Tozorakimab in Adults With Uncontrolled Asthma on Medium-to-High Dose Inhaled Corticosteroids
Recruiting
This is a dose-range finding, double-blind, placebo-controlled, phase IIb study designed to assess efficacy and safety of tozorakimab administered subcutaneously in adult participants with uncontrolled asthma receiving medium-to-high dose inhaled corticosteroids.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
07/15/2025
Locations: Research Site, Bakersfield, California
Conditions: Asthma
53-Week Study Evaluating the Safety and Efficacy of Intra-articular Injections of TPX-100 With Mild to Severe Tibio-Femoral Osteoarthritis of the Knee
Recruiting
53-Week Study Evaluating the Safety and Efficacy of Intra-articular (IA) Injections of TPX-100 vs Placebo in Subjects with Mild to Severe Tibio-Femoral Osteoarthritis of the Knee
Gender:
ALL
Ages:
Between 50 years and 80 years
Trial Updated:
07/15/2025
Locations: Legent Orthopedic Hospital, Carrolton, California
Conditions: Osteoarthritis (OA) of the Knee
4D-150 in Patients With Macular Neovascularization Secondary to Age-Related Macular Degeneration
Recruiting
A Phase 3, Randomized, Double-Masked, Active-Controlled Trial in Adults with Macular Neovascularization Secondary to Age-Related Macular Degeneration
Gender:
ALL
Ages:
50 years and above
Trial Updated:
07/15/2025
Locations: California Retina Consultants, Bakersfield, California
Conditions: Macular Neovascularization Secondary to Age-Related Macular Degeneration
Double-blind, Randomized, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of Ravulizumab Administered Intravenously in Adult Participants at High Risk of Delayed Graft Function After Kidney Transplantation
Recruiting
The primary objective of this study is to demonstrate the efficacy of ravulizumab vs placebo in reducing the severity of DGF as measured by time to freedom from dialysis in adult participants who are at high risk of DGF after undergoing transplant of deceased donor kidney.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: Research Site, Los Angeles, California
Conditions: Delayed Graft Function, DGF, Kidney Transplant
The THRIVE Study: Teaching Healthy Regulation in Individuals & Vulnerable Environments
Recruiting
The goal of this 2-arm randomized control trial is to determine the impact of a community health worker delivered coaching intervention, GRIT, on preventing the early initiation of regular use of alcohol and cannabis among adversity-impacted adolescents ages 11-14 who do not regularly use alcohol or cannabis at baseline. The specific aims include:
* Aim 1. Examine the effect of GRIT on preventing the early initiation of regular alcohol and cannabis use over time.
* Aim 2. Examine the role of yo... Read More
Gender:
ALL
Ages:
Between 11 years and 14 years
Trial Updated:
07/15/2025
Locations: The Regents of the University of California, Irvine, Irvine, California
Conditions: Adverse Childhood Experiences, Family Functioning
A Research Study to Investigate the Effects of CagriSema Compared to Placebo in People With Type 2 Diabetes and Painful Diabetic Peripheral Neuropathy
Recruiting
This study will look at the effects of CagriSema in people with both type 2 diabetes and painful diabetic peripheral neuropathy, compared to placebo. Participants will either get an active medicine or a "dummy" medicine (placebo). Which treatment participants get is decided by chance. In this study the active, investigational medicine is called CagriSema. Doctors cannot yet prescribe CagriSema. For each participant, the study will last for about 10 months.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: eStudySite, La Mesa, California
Conditions: Diabetes Mellitus, Type 2, Diabetic Peripheral Neuropathy
A Study to Investigate the Efficacy, Safety and Tolerability of Remibrutinib Versus Placebo in Adult Patients With Generalized Myasthenia Gravis
Recruiting
A study to evaluate the efficacy, safety and tolerability of Remibrutinib versus placebo in adult patients with Generalized Myasthenia Gravis who are on stable, standard-of-care (SOC) treatment.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
07/15/2025
Locations: Univ Cali Irvine ALS Neuromuscular, Orange, California
Conditions: Generalized Myasthenia Gravis
1789 - 1800 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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