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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.
181 - 192 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
Healthy Participants Needed (Colonoscopy + Cancer Screening)
Recruiting
Earn $325 - $475 in electronic payment card compensation for your time and effort by participating in a clinical study to develop a blood test that may one day help screen for colon cancer. Take a quick quiz to see if you qualify.
Conditions:
Healthy
Healthy Volunteers
Healthy Subjects
Healthy Volunteer
Healthy Participants
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 $50 off your first program with code policy-lab-50.
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 $50 off your first program with code policy-lab-50.
Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Featured Trial
Chronic Cough Study
Recruiting
Are you tired of living with chronic cough? The ASPIRE 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.
Conditions:
Chronic Cough
Refractory or Unexplained Chronic Cough
Cough
Asthma
Allergic Asthma
Featured Trial
Depression Clinical Trial
Recruiting
Join us in researching a potential investigational treatment for Depression. Reimbursement for study-related expenses may be available to you.
Qualifying participants:
•Are between 18-65
•Have been experiencing a major depressive episode for at least a month
Qualifying participants:
•Are between 18-65
•Have been experiencing a major depressive episode for at least a month
Conditions:
Depression
Major Depressive Disorder
Depressive Disorder
Depressive Symptoms
Depressive Disorder
A Phase 1 Study of BMS-986500 as Monotherapy or Combination Therapy in Advanced Solid Tumors
Recruiting
The purpose of this study is to assess BMS-986500 as monotherapy in advanced solid tumors and as combination therapy in CDK4/6 inhibitor pre-treated advanced breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Local Institution - 0003, Fullerton, California
Conditions: Advanced Solid Tumor, Advanced Breast Cancer, Advanced Ovarian Cancer
DESTINY-Endometrial01: A Phase III Study of Trastuzumab Deruxtecan Plus Rilvegostomig or Pembrolizumab as First-Line Treatment of HER2-Expressing (IHC 3+/2+), Mismatch Repair Proficient (pMMR) Endometrial Cancer
Recruiting
DESTINY-Endometrial01 will investigate the efficacy of first-line T-DXd + rilvegostomig (Arm A) and/or T-DXd+ pembrolizumab (Arm B) when compared to chemotherapy (carboplatin + paclitaxel) + pembrolizumab (Arm C), by assessment of progression free survival (PFS), as assessed by BICR, in participants with HER2-expressing (IHC 3+/2+), pMMR, primary advanced (Stage III/IV) or recurrent EC.
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Research Site, La Jolla, California
Conditions: Endometrial Cancer
A Study to Evaluate the Efficacy and Safety of KarXT + KarX-EC for Cognitive Impairment in Alzheimer's Disease
Recruiting
The purpose of this study is to evaluate the efficacy and safety of KarXT + KarX-EC for cognitive impairment in Alzheimer's Disease
Gender:
ALL
Ages:
Between 60 years and 85 years
Trial Updated:
08/19/2025
Locations: Local Institution - 0173, Long Beach, California
Conditions: Alzheimer's Disease
A Study to Evaluate Different Targeted Therapies for Patients With Rheumatoid Arthritis
Recruiting
Rheumatoid Arthritis (RA) is a chronic inflammatory disease causing pain, stiffness, swelling and loss of joint function. This study will evaluate the efficacy and safety of targeted therapies through a series of substudies for the treatment of moderately to severely active Rheumatoid Arthritis (RA).
This study currently includes 3 substudies evaluating different treatments in participants with RA. Substudy 1 will evaluate lutikizumab monotherapy (treatment given alone) compared to placebo (loo... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Inland Rheumatology & Osteoporosis Medical Group /ID# 272449, Upland, California
Conditions: Rheumatoid Arthritis
A Study to Evaluate the Efficacy and Safety of KarXT for the Treatment of Manic Episodes in Bipolar-I Disorder
Recruiting
The purpose of this study is to evaluate the efficacy and safety of KarXT for the treatment of manic episodes in Bipolar-I Disorder
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
08/19/2025
Locations: Advanced Research Center Inc., Anaheim, California
Conditions: Bipolar-I Disorder With Mania or Mania With Mixed Features
A Study to Investigate Progression-Free Survival With Sonrotoclax Plus Obinutuzumab Or Sonrotoclax Plus Rituximab Compared With Venetoclax Plus Rituximab Treatment In Patients With Relapsed and/or Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CELESTIAL-RRCLL)
Recruiting
The goal of this study is to compare how well sonrotoclax plus obinutuzumab works versus venetoclax plus rituximab in treating adults with relapsed and/or refractory (R/R) chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL). The study will also compare how well sonrotoclax plus rituximab works versus venetoclax plus rituxumab in treating adults with R/R CLL/SLL. The safety of these treatments will also be assessed.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Chao Family Comprehensive Cancer Center, Orange, California
Conditions: Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma
A Study to Learn About the Effects of Felzartamab Infusions on Adults With Immunoglobulin A Nephropathy (IgAN)
Recruiting
In this study, researchers will learn more about the use of felzartamab in participants with immunoglobulin A nephropathy (IgAN). This study will focus on participants who have protein in their urine (proteinuria) as a result of damaged kidneys.
The main goal of the study is to learn about the effect felzartamab has on proteinuria. The main question that researchers want to answer is:
• How much does the amount of protein in the urine change from the start of the study to Week 36?
Researchers... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Kidney & Hypertension Center - Apple Valley, Apple Valley, California
Conditions: Immunoglobulin A Nephropathy (IgAN)
A Study to Test Whether Vicadrostat in Combination With Empagliflozin Helps People With Chronic Kidney Disease
Recruiting
This study is open to adults with chronic kidney disease (CKD) that is at risk of getting worse. People who have taken a specific type of medication for kidney disease called SGLT2 inhibitor within 1 month before the study or have certain health conditions cannot take part in this study. The purpose of this study is to find out whether a medicine called vicadrostat, used in combination with another medicine called empagliflozin, works in people with chronic kidney disease.
In this study, partic... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Orange County Clinical Trials, Anaheim, California
Conditions: Chronic Kidney Disease
Treatment of Antibody-Mediated Rejection (ABMR) With CarBel
Recruiting
The purpose of this study is to see:
1. If using these two drugs (carfilzomib and belatacept) together is safe
2. If the use of these two study drugs in addition to the usual immunosuppression for kidney transplant patients can improve your transplanted kidney function by lowering the antibodies you have against your transplanted kidney
3. If the study drugs effect the immune cells that were responding to your donor kidney. And, whether blood or urine tests can measure signs of inflammation and... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/19/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Kidney Transplant Rejection
A Study to Test How Well BI 3000202 is Tolerated by People With Type 1 Interferonopathies
Recruiting
This study is open to adults with selected type 1 interferonopathies. People can join the study if they have Aicardi-Goutières syndrome (AGS), Coatomer subunit alpha (COPA) syndrome, Familial chilblain lupus (FCL), or another type 1 interferonopathy with a specific gene mutation.
The purpose of this study is to find out how BI 3000202 is tolerated in people with selected type 1 interferonopathies. Participants take a lower dose of BI 3000202 as tablets for 4 weeks. Afterwards, they take a highe... Read More
Gender:
ALL
Ages:
Between 18 years and 74 years
Trial Updated:
08/19/2025
Locations: Children's Hospital Los Angeles, Los Angeles, California
Conditions: Type 1 Interferonopathies
A Study of BGB-16673 Compared to Investigator's Choice in Participants With Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma Previously Exposed to Both Bruton Tyrosine Kinase (BTK) and B-cell Leukemia/Lymphoma 2 Protein (BCL2) Inhibitors
Recruiting
The purpose of this study is to investigate the efficacy and safety of BGB-16673 compared with investigator's choice (idelalisib plus rituximab \[for CLL only\] or bendamustine plus rituximab or venetoclax plus rituximab retreatment) in participants with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) previously exposed to both BTK inhibitors (BTKi) and BCL2 inhibitors (BCL2i).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: UCLA Department of Medicine Hematologyoncology, Los Angeles, California
Conditions: CLL, Chronic Lymphocytic Leukemia
Long-term Safety and Efficacy of ESK-001 in Moderate to Severe Plaque Psoriasis
Recruiting
The objective of the ESK-001-018 long term extension is to evaluate the safety and efficacy of ESK-001 over time. The scientific questions it aims to answer are:
* How safe is taking ESK-001 long-term in people with moderate to severe plaque psoriasis?
* Does taking ESK-001 long-term reduce the severity of people's plaque psoriasis?
Patients will enter the long-term extension study following completion of one of the parent studies (ESK-001-016 or ESK-001-017) and will receive open-label ESK-00... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Exalt Clinical Research Inc, Chula Vista, California
181 - 192 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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