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California Paid Clinical Trials
A listing of 5616 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
1225 - 1236 of 5616
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California is currently home to 5616 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
Depressive disorder Clinical Study
Recruiting
A clinical study for people that suffer with Depressive disorder
Conditions:
Depressive disorder
Safety and Effectiveness of the Akura Thrombectomy System for Use in the Removal of Emboli From the Pulmonary Arteries in Treating Acute Pulmonary Embolism (PE)
Recruiting
This study is a prospective, single-arm, interventional, multicenter study to evaluate the safety and effectiveness of percutaneous mechanical thrombectomy using the Akura Thrombectomy System in subjects with acute pulmonary embolism (PE).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: Los Robles Regional Medical Center, Thousand Oaks, California
Conditions: Pulmonary Embolism Acute
A Phase 1, Randomized, Double-blind, Placebo-controlled Study Evaluating AMG 691 in Healthy Participants and Participants With Mild-to-Moderate Asthma
Recruiting
The main objective of this study is to assess the safety and tolerability of AMG 691 as single doses (healthy participants only) and multiple doses in healthy participants and participants with mild-to-moderate asthma.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
07/24/2025
Locations: Orange County Research Center, Lake Forest, California
Conditions: Asthma
Evaluation of Neoadjuvant Xaluritamig in Localized Prostate Cancer
Recruiting
The primary objectives of this study are to evaluate the safety and tolerability of xaluritamig administered in the neoadjuvant setting followed by radical prostatectomy and to evaluate the feasibility and safety of a radical prostatectomy following xaluritamig administered in the neoadjuvant setting.
Gender:
MALE
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: University of California San Francisco, San Francisco, California
Conditions: Prostate Cancer
A Study of LY4050784 in Participants With Advanced or Metastatic Solid Tumors
Recruiting
The main purpose of this study is to find out whether the study drug, LY4050784, is safe, tolerable and effective in participants alone or in combination with other anticancer agents. In addition, with locally advanced or metastatic solid tumors with a BRG1 (Brahma-related gene 1, also known as SMARCA4) alteration who have previously received, do not qualify for, or are refusing standard of care treatments, or there is no standard therapy available for the disease. The study is conducted in two... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: UCLA, Santa Monica, California
Conditions: Metastatic Solid Tumor, Advanced Solid Tumor, Non-small Cell Lung Cancer, SMARCA4-Deficient Tumor
Denosumab for Type 1 Diabetes
Recruiting
Type 1 diabetes (T1D) arises from abnormal immune cell-mediated injury to beta cells that make insulin. The injured beta cells can then no longer make the needed amount of insulin to stay healthy. However, in the early stages of T1D, some beta cells are still alive and functioning. Treatment to protect the beta cells against injury at this time could slow the progress of disease. Denosumab is an approved treatment for osteoporosis (a disease that thins and weakens the bones), high blood calcium... Read More
Gender:
ALL
Ages:
Between 18 years and 50 years
Trial Updated:
07/24/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Type 1 Diabetes
A Study to Evaluate the Effect of Bimekizumab on Gene Expression Biomarkers in Study Participants With Moderate to Severe Plaque Psoriasis
Recruiting
The purpose of this study is to evaluate the effect of bimekizumab on gene expression biomarkers at Week 48 in a subset of study participants with moderate to severe plaque psoriasis (PSO) and moderate to severe plaque PSO with concomitant active psoriatic arthritis (PsA) who have provided skin biopsies for reverse transcription-polymerase chain reaction (RT-PCR).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: Ps0039 50162, Fountain Valley, California
Conditions: Moderate to Severe Plaque Psoriasis, Psoriatic Arthritis
A Study of Cemiplimab Plus Chemotherapy Versus Cemiplimab Plus Chemotherapy Plus Other Cancer Treatments for Adult Patients With Operable Non-Small Cell Lung Cancer (NSCLC)
Recruiting
This study will enroll adult participants with early-stage (stage II-IIIB) non-small cell lung cancer for whom surgery is planned.
The aim is to find out whether an investigational treatment (consisting of the immunotherapy drug cemiplimab plus chemotherapy plus a third drug) works better than cemiplimab plus chemotherapy without the additional drug.
The study is also looking at several other research questions, including:
* What are the side effects associated with the investigational treatm... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: University of California Irvine, Orange, California
Conditions: Non-Small Cell Lung Cancer
SuperSaturated Oxygen Comprehensive Observational Registry
Recruiting
The SuperSaturated Oxygen Comprehensive Observational Registry (SSCORE) registry, a prospectively designed observational study, aims to evaluate the clinical utility and effectiveness of SuperSaturated Oxygen (SSO2) Therapy versus percutaneous coronary intervention (PCI) alone among patients with anterior acute myocardial infarction (AMI) in routine clinical practice. The goal is to collect real-world data from patients treated with SSO2 Therapy to determine its impact on the overall heart failu... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: MemorialCare Orange Coast Medical Center, Fountain Valley, California
Conditions: STEMI - ST Elevation Myocardial Infarction, AMI
Comparing the Combination of Selinexor-Daratumumab-Velcade-Dexamethasone (Dara-SVD) With the Usual Treatment (Dara-RVD) for High-Risk Newly Diagnosed Multiple Myeloma
Recruiting
This phase II trial compares the combination of selinexor, daratumumab and hyaluronidase-fihj (daratumumab), velcade (bortezomib), and dexamethasone (Dara-SVD) to the usual treatment of daratumumab, lenalidomide, bortezomib, and dexamethasone (Dara-RVD) in treating patients with high-risk newly diagnosed multiple myeloma. Selinexor is in a class of medications called selective inhibitors of nuclear export (SINE). It works by blocking a protein called CRM1, which may keep cancer cells from growin... Read More
Gender:
ALL
Ages:
All
Trial Updated:
07/24/2025
Locations: UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care, Irvine, California
Conditions: Multiple Myeloma
A Study to Evaluate Efficacy and Safety of Giredestrant Compared With Fulvestrant (Plus a CDK4/6 Inhibitor), in Participants With ER-Positive, HER2-Negative Advanced Breast Cancer Resistant to Adjuvant Endocrine Therapy (pionERA Breast Cancer)
Recruiting
This is a Phase III, randomized, open-label multicenter study that will evaluate the efficacy and safety of giredestrant compared with fulvestrant, both in combination with the investigator's choice of a CDK4/6 inhibitor (palbociclib, ribociclib or abemaciclib), in participants with estrogen receptor-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer who have developed resistance to adjuvant endocrine therapy.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: Sutter Auburn Faith Hospital, Auburn, California
Conditions: Estrogen Receptor-Positive, HER2-Negative Advanced Breast Cancer
Vitaccess Real MG Registry
Recruiting
Vitaccess Real MG (VRMG) is a patient registry designed to capture longitudinal observational data on myasthenia gravis (MG), its treatment, and impact on symptoms, daily activities, and quality of life (QoL). The duration of the registry is 10 years from launch, and approximately 600 patients will be recruited in the US and Europe with no defined upper limit. The registry will link relevant patient- and healthcare professional (HCP)-reported data with clinical data from medical records.
Patien... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: UCI Health, Orange, California
Conditions: Myasthenia Gravis
AMT-260 Gene Therapy Study in Adults With Unilateral Refractory Mesial Temporal Lobe Epilepsy
Recruiting
The main goals of this clinical study are to learn if AMT-260 is safe and tolerable and works to reduce the frequency of seizures in adults with unilateral mesial temporal lobe epilepsy (MTLE).
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
07/24/2025
Locations: Stanford University, Palo Alto, California
Conditions: Mesial Temporal Lobe Epilepsy
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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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