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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.
157 - 168 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)
A Study Evaluating the Efficacy of Budesonide, Glycopyrronium and Formoterol Fumarate Metered Dosed Inhaler on Cardiopulmonary Outcomes in Chronic Obstructive Pulmonary Disease
Recruiting
This study will evaluate the effect of triple ICS/LAMA/LABA therapy with BGF MDI 320/14.4/9.6 μg on cardiopulmonary outcomes relative to LAMA/LABA therapy with GFF MDI 14.4/9.6 μg in a population with COPD and elevated cardiopulmonary risk.
Gender:
ALL
Ages:
Between 40 years and 80 years
Trial Updated:
08/20/2025
Locations: Research Site, Apple Valley, California
Conditions: COPD (Chronic Obstructive Pulmonary Disease)
A Safety and Efficacy Study of Dazodalibep in Participants With Sjögren's Syndrome (SS) With Moderate-to-Severe Symptom State
Recruiting
Primary Objective:
To evaluate the effect of dazodalibep on patient-reported symptoms of SS in participants with moderate-to-severe symptom state
Secondary Objectives:
1. To evaluate the effect of dazodalibep on patient-reported outcomes (PROs) in participants with SS.
2. To evaluate the effect of dazodalibep on measures of systemic activity, PROs, and salivary flow in participants with SS
3. To evaluate the safety and tolerability of multiple doses of dazodalibep in participants with SS
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: Medvin Clinical Research - Covina, Covina, California
Conditions: Sjögren's Syndrome (SS)
Copper Cu 64 PSMA I&T PET Imaging in Men With Newly Diagnosed Prostate Cancer
Recruiting
This is a prospective, open-label Phase 3 study to evaluate copper Cu 64 PSMA I\&T injection for PET/CT imaging in patients with newly diagnosed unfavorable intermediate high-risk, high-risk or very high-risk prostate cancer.
Gender:
MALE
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: Providence Medical Foundation, Fullerton, California
Conditions: Prostate Cancer, Prostate Adenocarcinoma
Study Comparing Tarlatamab and Durvalumab Versus Durvalumab Alone in First-Line Extensive-Stage Small-Cell Lung Cancer (ES-SCLC) Following Platinum, Etoposide and Durvalumab
Recruiting
The primary objective of this study is to compare the efficacy of tarlatamab plus durvalumab with durvalumab alone on prolonging overall survival (OS).
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
08/20/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Extensive-Stage Small-Cell Lung Cancer, Small-Cell Lung Cancer
A Trial to Learn if Odronextamab Combined With Lenalidomide is Safe and Works Better Than Rituximab Combined With Lenalidomide in Adult Participants With Follicular Lymphoma and Marginal Zone Lymphoma
Recruiting
This study is researching an experimental drug called odronextamab (referred to as study drug), in combination with lenalidomide. The study is focused on participants who have one of two types of cancer: follicular lymphoma (FL) or marginal zone lymphoma (MZL) that has come back after treatment (called "relapsed"), or did not respond to treatment (called "refractory"). FL and MZL are subtypes of Non-Hodgkin 's lymphoma (NHL).
This study will be made up of two parts (Part 1 not randomized, Part... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: David Geffen School of Medicine at UCLA, Los Angeles, California
Conditions: Relapsed/Refractory Follicular Lymphoma, Marginal Zone Lymphoma (MZL)
Effect of Naltrexone Hydrochloride ER and Bupropion Hydrochloride ER Combination (Contrave®/Mysimba®) on Major Adverse Cardiovascular Events (MACE)
Recruiting
A randomized, double-blinded, placebo controlled study intended to capture cardiovascular outcomes during real-world use of naltrexone/bupropion (NB).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: Velocity Clinical Research, Gardena, Anderson, California
Conditions: Obesity
A Study to Evaluate Avacopan in Participants With ANCA-associated Vasculitis
Recruiting
The primary objective of this study is to evaluate the long-term safety of avacopan in participants with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV).
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
08/20/2025
Locations: Medvin Clinical Research, Covina, California
Conditions: Antineutrophil Cytoplasmic Antibody-associated Vasculitis
Tocilizumab in Lung Transplantation
Recruiting
This is a trial in which 350 primary lung transplant recipients will be randomized (1:1) to receive either Tocilizumab (six doses over 20 weeks) plus standard triple maintenance immunosuppression or placebo (sterile normal saline) plus standard triple maintenance immunosuppression (Tacrolimus, Mycophenolate Mofetil, corticosteroids).
The primary objective is to test the hypothesis that treatment with triple maintenance immunosuppression plus Tocilizumab (TCZ) is superior to triple maintenance i... Read More
Gender:
ALL
Ages:
Between 12 years and 75 years
Trial Updated:
08/20/2025
Locations: Cedars Sinai Medical Center (Site #: 71146), Los Angeles, California
Conditions: Lung Transplant
A Study to Evaluate the Efficacy, Safety, and Tolerability of BMS-986278 in Participants With Progressive Pulmonary Fibrosis
Recruiting
The purpose of this study is to evaluate the efficacy, safety, and tolerability of BMS-986278 in Participants with Progressive Pulmonary Fibrosis.
Gender:
ALL
Ages:
21 years and above
Trial Updated:
08/20/2025
Locations: Scripps Clinic Torrey Pines, La Jolla, California
Conditions: Progressive Pulmonary Fibrosis
A Study Evaluating Sotorasib Platinum Doublet Combination Versus Pembrolizumab Platinum Doublet Combination as a Front-Line Therapy in Participants With Stage IV or Advanced Stage IIIB/C Nonsquamous Non-Small Cell Lung Cancers (CodeBreaK 202)
Recruiting
The primary objectives are to compare progression-free survival (PFS) and overall survival (OS) in participants who receive sotorasib with platinum doublet chemotherapy versus participants who receive pembrolizumab with platinum doublet chemotherapy.
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
08/20/2025
Locations: Sansum Clinic, Santa Barbara, California
Conditions: Non-Small Cell Lung Cancer (NSCLC)
Immunotherapy in Combination With Prednisone and Sirolimus for Kidney Transplant Recipients With Unresectable or Metastatic Skin Cancer
Recruiting
This phase II trial tests the combination of nivolumab and ipilimumab with sirolimus and prednisone for the treatment of skin (cutaneous) cancer that cannot be removed by surgery (unresectable) or that has spread from where it first started to other places in the body (metastatic) in kidney transplant recipients. Immunotherapy with nivolumab and ipilimumab, may induce changes in body's immune system and may interfere with the ability of tumor cells to grow and spread. Sirolimus and prednisone ar... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: UC San Diego Moores Cancer Center, La Jolla, California
Conditions: Clinical Stage III Cutaneous Melanoma AJCC v8, Clinical Stage IV Cutaneous Melanoma AJCC v8, Metastatic Basal Cell Carcinoma, Metastatic Carcinoma in the Skin, Metastatic Melanoma, Metastatic Merkel Cell Carcinoma, Metastatic Skin Squamous Cell Carcinoma, Unresectable Basal Cell Carcinoma, Unresectable Melanoma, Unresectable Merkel Cell Carcinoma, Unresectable Skin Squamous Cell Carcinoma, Clinical Stage III Cutaneous Merkel Cell Carcinoma AJCC v8, Clinical Stage IV Cutaneous Merkel Cell Carcinoma AJCC v8
Trial of Two Adagrasib Dosing Regimens in NSCLC With KRAS G12C Mutation (KRYSTAL 21)
Recruiting
This study will evaluate the efficacy of two dosing regimens of adagrasib (600 mg BID versus 400 mg BID) in patients with NSCLC with KRAS G12C mutation.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: Providence Medical Foundation - Research, Santa Rosa, California
Conditions: Advanced Cancer, Metastatic Cancer, Malignant Neoplasm of Lung
157 - 168 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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