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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.
133 - 144 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)
BOLD-100 in Combination With FOLFOX for the Treatment of Advanced Solid Tumours
Recruiting
BOLD-100 is an intravenously administered sterile solution containing the ruthenium-based small molecule. BOLD-100 has been shown to preferentially decrease the expression of GRP78 in tumour cells and ER stressed cells when compared to normal cells. BOLD-100 will be combined with cytotoxic FOLFOX chemotherapy in this study, with a dose escalation cohort to ensure tolerability and safety, followed by a cohort expansion phase.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: University of California, Los Angeles, Santa Monica, California
Testing Early Treatment for Patients With High-Risk Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Leukemia (SLL), EVOLVE CLL/SLL Study
Recruiting
This phase III trial compares early treatment with venetoclax and obinutuzumab versus delayed treatment with venetoclax and obinutuzumab in patients with newly diagnosed high-risk chronic lymphocytic leukemia or small lymphocytic lymphoma. Venetoclax is in a class of medications called B-cell lymphoma-2 (BCL-2) inhibitors. It may stop the growth of cancer cells by blocking Bcl-2, a protein needed for cancer cell survival. Immunotherapy with monoclonal antibodies, such as obinutuzumab, may help t... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: Kaiser Permanente-Anaheim, Anaheim, California
Conditions: Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma
Testing the Addition of a Type of Drug Called Immunotherapy to the Usual Chemotherapy Treatment for Non-small Cell Lung Cancer, an ALCHEMIST Treatment Trial (Chemo-IO [ACCIO])
Recruiting
This phase III ALCHEMIST treatment trial tests the addition of pembrolizumab to usual chemotherapy for the treatment of stage IIA, IIB, IIIA or IIIB non-small cell lung cancer that has been removed by surgery. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs, such as cisplatin, pemetrexed, carboplatin, gemcitabine hydrochloride, and paclita... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: Kaiser Permanente-Anaheim, Anaheim, California
Conditions: Lung Non-Small Cell Carcinoma, Lung Non-Small Cell Squamous Carcinoma, Lung Non-Squamous Non-Small Cell Carcinoma, Stage II Lung Cancer AJCC v8, Stage IIIA Lung Cancer AJCC v8, Stage IIIB Lung Cancer AJCC v8
Radiation Medication (Radium-223 Dichloride) Versus Radium-223 Dichloride Plus Radiation Enhancing Medication (M3814) Versus Radium-223 Dichloride Plus M3814 Plus Avelumab (a Type of Immunotherapy) for Advanced Prostate Cancer Not Responsive to Hormonal Therapy
Recruiting
This phase I/II trial studies the best dose of M3814 when given together with radium-223 dichloride or with radium-223 dichloride and avelumab and to see how well they work in treating patients with castrate-resistant prostate cancer that had spread to other places in the body (metastatic). M3814 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Radioactive drugs, such as radium-223 dichloride, may carry radiation directly to tumor cells and not harm norm... Read More
Gender:
MALE
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: City of Hope Comprehensive Cancer Center, Duarte, California
Conditions: Metastatic Malignant Neoplasm in the Lymph Nodes, Metastatic Castration-Resistant Prostate Carcinoma, Metastatic Malignant Neoplasm in the Bone, Stage IVB Prostate Cancer AJCC v8
Transcatheter Mitral Valve Replacement With the Medtronic Intrepid™ TMVR System in Patients With Severe Symptomatic Mitral Regurgitation.
Recruiting
Multi-center, global, prospective, non-randomized, interventional, pre-market trial. All subjects enrolled with receive the study device.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: Scripps Memorial Hospital, La Jolla, California
Conditions: Mitral Valve Regurgitation
A Study of LY4257496 in Participants With Cancer (OMNIRAY)
Recruiting
The main purpose of this study is to evaluate safety, tolerability, and efficacy of LY4257496 alone and as part of relevant standard of care (SOC) combination therapy in participants with Gastrin-releasing Peptide Receptor (GRPR)-positive advanced breast, colorectal, prostate, and endometrial cancer. This is a 2-part study. Participation could last up to 36 weeks or until your tumor progresses.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: University of California, Los Angeles (UCLA), Los Angeles, California
Conditions: Breast Neoplasms, Colorectal Neoplasms, Prostate Neoplasm, Endometrial Neoplasms, Neoplasm Metastasis
A Study of GC012F (AZD0120), a CAR T Therapy Targeting CD19 and BCMA in Early-Line Treatment in Subjects With Multiple Myeloma
Recruiting
This trial is a phase 1, open-label, multicenter study of GC012F (AZD0120), a CD19/BCMA dual CAR T-cell therapy, in early-line treatment in subjects with Multiple Myeloma.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: Research Site, Duarte, California
Conditions: Newly Diagnosed Multiple Myeloma, Relapsed Refractory Multiple Myeloma
A Phase 3 Study to Evaluate the Safety and Efficacy of KarXT + KarX-EC for the Treatment of Agitation Associated With Alzheimer's Disease (ADAGIO-2)
Recruiting
The purpose of this study is to evaluate the efficacy and safety of KarXT + KarX-EC in adult participants with agitation related to Alzheimer's Disease.
Gender:
ALL
Ages:
Between 55 years and 90 years
Trial Updated:
08/20/2025
Locations: Local Institution - 2625, Long Beach, California
Conditions: Alzheimer Disease
Study of GS-3242 in Participants With HIV-1
Recruiting
This study is part of a master study. The goal of master protocol (GS-US-544-5905, NCT05585307) is to learn how novel antiretrovirals (medicines that stop the virus from multiplying) affect the human immunodeficiency virus-1 (HIV-1) infection in people living with HIV (PWH).
Substudy GS-US-544-5905-05 is to learn more about the study drug GS-3242 in PWH.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
08/20/2025
Locations: Ruane Clinical Research Group, Inc, Los Angeles, California
Conditions: HIV-1-infection
Optimizing Proton Pump Inhibitors (PPI) Prescribing With EHR-Based Decision Support
Recruiting
The proposed study is a quality improvement initiative designed to rigorously evaluate new variations of UCLA Health's proton pump inhibitor (PPI) order panels, building on internal quality improvement efforts to optimize prescribing workflows within the Electronic Health Record (EHR). PPIs are notoriously overprescribed, and the study team has identified that the CareConnect default prescription setting of 90 days with three refills (360 pill days) exceed standard guidelines (in most cases, 60... Read More
Gender:
ALL
Ages:
50 years and above
Trial Updated:
08/20/2025
Locations: UCLA Health System, Los Angeles, California
Conditions: Prescribing Patterns, Physician, Physician's Practice Patterns, Drug Utilization Review
A Study of Breast Cancer Risk Factors and Outcomes of People in Florida
Recruiting
The purpose of this study is to understand why different people have different risks and outcomes for breast cancer and non-breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: University of California, Los Angeles (Specimen Analysis only), Los Angeles, California
A Study to Learn How Avacincaptad Pegol (Izervay™) is Used in Clinical Practice in People Who Have Geographic Atrophy
Recruiting
This study is for people who have geographic atrophy due to age-related macular degeneration (AMD). AMD happens when the macula, the light-sensitive layer at the back of the eye called the retina, becomes damaged and causes a person's central vision to worsen. Geographic atrophy is an advanced form of AMD where cells in the retina waste away and die. Over time this can lead to permanent loss of vision.
Avacincaptad pegol can help slow down the worsening or progression of geographic atrophy. Ava... Read More
Gender:
ALL
Ages:
All
Trial Updated:
08/20/2025
Locations: Harvard Eye Associates, Laguna Hills, California
Conditions: Geographic Atrophy, Macular Degeneration
133 - 144 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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