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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.
1765 - 1776 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)
Evaluation of Maralixibat in Pruritus Associated With General Cholestatic Liver Disease (EXPAND)
Recruiting
The purpose of this study is to determine whether the investigational treatment (maralixibat) is safe and effective in pediatric and adult participants who have cholestatic liver disease with pruritus that has been refractory to other therapies, and who have no other treatment options.
Gender:
ALL
Ages:
6 months and above
Trial Updated:
07/16/2025
Locations: Children's Hospital Los Angeles (CHLA), Los Angeles, California
Conditions: Cholestatic Liver Disease (except ALGS, PFIC, PBC and PSC)
A Phase 3 Study to Evaluate Petosemtamab Plus Pembrolizumab vs Pembrolizumab in First-line Treatment of Head and Neck Cancer (LiGeR - HN1)
Recruiting
This is a Phase 3 randomized, open-label study to evaluate the efficacy and safety of petosemtamab plus pembrolizumab vs pembrolizumab in first-line treatment of recurrent or metastatic PD-L1+ head and neck squamous cell carcinoma.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Site 36, La Jolla, California
Conditions: Head and Neck Squamous Cell Carcinoma
A Study of NVL-330 in Patients With Advanced or Metastatic HER2-altered NSCLC (HEROEX-1)
Recruiting
Phase 1a/1b dose escalation and expansion study designed to evaluate the safety and tolerability of NVL-330, determine the recommended Phase 2 dose (RP2D), and evaluate the antitumor activity in patients with advanced or metastatic HER2-altered NSCLC.
Phase 1a dose escalation is designed to assess the safety and tolerability of NVL-330 and to select the candidate RP2D(s) and, if applicable, the MTD.
Phase 1b expansion is designed to further evaluate the overall safety and tolerability of the c... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: City of Hope - Lennar, Irvine, California
Conditions: Locally Advanced Solid Tumor, Metastatic Solid Tumor
Study of Bepirovirsen in Participants Living With Human Immunodeficiency Virus and Chronic Hepatitis B Virus Infection (B-Focus)
Recruiting
This study will evaluate the efficacy and safety of bepirovirsen compared to placebo in participants with human immunodeficiency virus (HIV)/hepatitis B virus (HBV) co-infection.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: GSK Investigational Site, Bakersfield, California
Conditions: Hepatitis B
Pancreatic Cancer Detection Consortium
Recruiting
This study aims to prospective validate an exosome-based miRNA signature for noninvasive and early detection of pancreatic ductal adenocarcinoma.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: City of Hope Medical Center, Monrovia, California
Conditions: Pancreatic Cancer, Pancreatic Carcinoma, Pancreatic Adenocarcinoma, Pancreatic Ductal Adenocarcinoma, Pancreatic Neoplasms, Pancreatic Cancer Stage I, Pancreatic Cancer Stage, Pancreatic Cancer Resectable, Pancreatic Cancer Stage 0, Pancreatic Cancer Stage II, Pancreatic Cancer Stage III, Pancreatic Cancer, Adult, Pancreatic Cancer Non-resectable
A Clinical Study of Intismeran Autogene (V940) Treatment and Pembrolizumab in People With Bladder Cancer (V940-005/INTerpath-005)
Recruiting
Researchers are looking for new ways to treat people with high-risk muscle-invasive urothelial carcinoma (MIUC). Urothelial carcinoma is a type of bladder cancer that begins in cells that line the inside of the bladder and other parts of the urinary tract, such as part of the kidneys, ureters, and urethra. People with MIUC usually have chemotherapy before surgery, then surgery to remove the cancer. Chemotherapy is a type of medicine to destroy cancer cells or stop them from growing. After surger... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: UCLA Hematology/Oncology - Westwood (Building 200 Suite 140)-Department of Urology/Institute of Uro ( Site 0104), Los Angeles, California
Conditions: Bladder Cancer
Preventing School Exclusion and Opioid Misuse: Effectiveness of the Inclusive Skill-building Learning Approach (ISLA)
Recruiting
This project will test the effectiveness of the Inclusive Skill-building Learning Approach (ISLA) in reducing the use of exclusionary discipline, improving teacher practice and student outcomes, and decreasing substance misuse using a randomized controlled trial in 60 middle schools across six states.
Gender:
ALL
Ages:
Between 8 years and 15 years
Trial Updated:
07/16/2025
Locations: Soquel Union Elementary School District, Capitola, California
Conditions: Middle Schools, School Exclusion, School Community, Teaching Practices, Opioid and Other Substance Misuse
Evaluation of A Clinical Diagnostic Test for CRDS
Recruiting
Calcium Release Deficiency Syndrome (CRDS) is a novel inherited arrhythmia syndrome secondary to RyR2 loss-of-function that confers a risk of sudden cardiac death. Diagnosis of CRDS presently requires cellular-based in vitro confirmation that an RyR2 variant causes loss-of-function. We hypothesize that CRDS can be diagnosed clinically through evaluation of the repolarization response to brief tachycardia, mediated by cardiac pacing, and a subsequent pause.
Gender:
ALL
Ages:
All
Trial Updated:
07/16/2025
Locations: University of California, San Francisco, California
Conditions: Calcium Release Deficiency Syndrome (CRDS)
HeartGPS: A Study Exploring the Effects of a Psychological Intervention for Parents and Their Babies After Prenatal Cardiac Diagnosis
Recruiting
Babies with single ventricle congenital heart disease (SVCHD) are often diagnosed during pregnancy. While prenatal diagnosis has important clinical benefits, it is often stressful and overwhelming for parents, and many express a need for psychological support. HeartGPS is a psychological intervention for parents who receive their baby's diagnosis of SVCHD during pregnancy. It includes 8 sessions with a psychologist, coupled with tailored educational resources, and a personalized care plan. The i... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Children's Hospital Los Angeles, Los Angeles, California
Conditions: Heart Defects, Congenital, Anxiety in Pregnancy, Depression, Postpartum, Trauma, Psychological, Neurodevelopmental Disorders
TEE and Dysphagia in Lung Transplantation
Recruiting
The primary outcome of this study is dysphagia (difficulty swallowing) on postoperative speech and swallow evaluation following lung transplantation.
Transesophageal echocardiography (TEE) (creates pictures of the heart from inside the participants body) is routinely performed for all lung transplantations at the University of California, Los Angeles (UCLA) and it is the standard of care. Patients are randomized to two groups. The intervention group would limit the number of TEE clips (# pictur... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Ronald Reagan UCLA Medical Center, Department of Anesthesiology & Perioperative Medicine, Los Angeles, California
Conditions: Lung Transplant, Dysphagia
A Study of DB-1303/BNT323 vs Investigator's Choice Chemotherapy in HER2-Low, Hormone Receptor Positive Metastatic Breast Cancer (DYNASTY-Breast02)
Recruiting
The goal of this clinical trial is to assess the efficacy of DB-1303/BNT323 compared with investigator's choice chemotherapy in terms of progression-free survival (PFS) by blinded independent central review (BICR) in the HR+, HER2-low (immunohistochemistry \[IHC\]2+/in situ hybridization \[ISH\]- and IHC 1+) population.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Research Site 1114-0, Fullerton, California
Conditions: Metastatic Breast Cancer
Personalized Health Self-Management Training for Colorectal Cancer Survivors
Recruiting
This is a Phase 2 prospective, randomized, controlled, double-arm study to assess personalized self-management training (PSMT) intervention efficacy and patient experiences compared to standardized self-management training (SSMT). A total of 120 colorectal cancer (CRC) patients will be enrolled and randomized 1:1 to complete a 6-week self-management training program (either PSMT or SSMT) to be carried out by licensed occupational therapists with doctoral training.
This study aims to examine whe... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Colorectal Cancer, Healthy Lifestyle, Behavior, Health, Health Behavior
1765 - 1776 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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