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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.
121 - 132 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 of Lebrikizumab (LY3650150) in Participants 6 Months to <18 Years of Age With Moderate-to-Severe Atopic Dermatitis
Recruiting
The main purpose of this study is to measure the effect, safety and how well the body absorbs lebrikizumab in pediatric participants 6 months to \<18 years of age with moderate-to-severe atopic dermatitis (AD).
Gender:
ALL
Ages:
Between 6 months and 17 years
Trial Updated:
08/21/2025
Locations: First OC Dermatology, Fountain Valley, California
Conditions: Atopic Dermatitis, Eczema
First in Human Study of IMGN151 in Recurrent Gynaecological Cancers
Recruiting
IIMGN151-1001 is a Phase 1, first in human, open-label dose-escalation, optimization, and expansion study designed to characterize the safety, tolerability, pharmacokinetics (PK), immunogenicity, and preliminary antitumor activity of IMGN151 in adult participants with recurrent endometrial cancer; recurrent, high-grade serous epithelial ovarian, fallopian tube, and primary peritoneal cancers; or recurrent cervical cancers. All participants will be, in the opinion of the investigator, appropriate... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: City of Hope National Medical Center /ID# 269036, Duarte, California
Conditions: Endometrial Cancer, High Grade Serous Adenocarcinoma of Ovary, Primary Peritoneal Carcinoma, Fallopian Tube Cancer, Cervical Cancer
Zimberelimab and Domvanalimab in Combination With Chemotherapy Versus Pembrolizumab With Chemotherapy in Patients With Untreated Metastatic Non-Small Cell Lung Cancer
Recruiting
The primary objective of this study is to compare the effect of zimberelimab (ZIM) and domvanalimab (DOM) in combination with chemotherapy relative to pembrolizumab (PEMBRO) in combination with chemotherapy on overall survival (OS) in patients with untreated metastatic non-small cell lung cancer with no actionable genomic alteration.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: California Cancer Associates for Research and Excellence, San Marcos, California
Conditions: Non-small Cell Lung Cancer
A Single-Ascending and Repeated Dose Study of LY3849891 in Participants With Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)
Recruiting
The main purpose of this study is to evaluate the safety and tolerability of the study drug LY3849891 in participants with metabolic dysfunction-associated steatotic liver disease (MASLD) who have the patatin-like phospholipase domain-containing protein 3 (PNPLA3) I148M genotype. Blood tests and magnetic resonance imaging of the liver will be performed to determine the effects of LY3849891 on MASLD and assessment of resolution of liver fibroinflammation. Blood tests will also determine how long... Read More
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
08/21/2025
Locations: Orange County Research Center, Orange, California
Conditions: Metabolic Dysfunction-Associated Steatohepatitis (MASH), Metabolic Dysfunction-associated Steatotic Liver Disease (MASLD)
Phase 2/3 Adaptive Study of VX-147 in Adult and Pediatric Participants With APOL1- Mediated Proteinuric Kidney Disease
Recruiting
The purpose of this study is to evaluate the efficacy, safety, tolerability, and pharmacokinetics (PK) of VX-147 in adult and pediatric participants with apolipoprotein L1 (APOL1)-mediated proteinuric kidney disease.
Gender:
ALL
Ages:
Between 10 years and 65 years
Trial Updated:
08/21/2025
Locations: The Medical Research Group - Saint Agnes Medical Center, Fresno, California
Conditions: Proteinuric Kidney Disease
An Extension Study to Evaluate the Long-Term Safety and Clinical Activity of mRNA-3705 in Participants Previously Enrolled in Other Clinical Studies of mRNA-3705
Recruiting
The primary objective of this study is to evaluate the long-term safety of mRNA-3705 administered to participants with isolated methylmalonic acidemia (MMA) due to methylmalonyl-coenzyme A mutase (MUT) deficiency who have previously participated in other clinical studies of mRNA-3705.
Gender:
ALL
Ages:
1 year and above
Trial Updated:
08/21/2025
Locations: UCLA Medical Center, Los Angeles, California
Conditions: Methylmalonic Acidemia
Testing the Addition of Herceptin Hylecta or Phesgo to the Usual Chemotherapy for HER2 Positive Endometrial Serous Carcinoma or Carcinosarcoma
Recruiting
This phase III trial tests whether adding trastuzumab and hyaluronidase-oysk (Herceptin Hylecta \[TM\]) or pertuzumab, trastuzumab and hyaluronidase-zzxf (Phesgo \[TM\]) to the usual chemotherapy (paclitaxel and carboplatin) works to shrink tumors in patients with HER2 positive endometrial cancer. Trastuzumab and pertuzumab are monoclonal antibodies and forms of targeted therapy that attach to specific molecules (receptors) on the surface of tumor cells, known as HER2 receptors. When trastuzumab... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: Sutter Auburn Faith Hospital, Auburn, California
Conditions: Endometrial Serous Adenocarcinoma, Uterine Corpus Carcinosarcoma, Endometrial Carcinoma, Endometrial Clear Cell Adenocarcinoma, Endometrial Dedifferentiated Carcinoma, Endometrial Endometrioid Adenocarcinoma, Endometrial Mixed Cell Adenocarcinoma, Endometrial Undifferentiated Carcinoma
A Study to Evaluate Efficacy and Safety of an Investigational Drug Named Volixibat in Patients With Itching Caused by Primary Biliary Cholangitis
Recruiting
The purpose of this clinical research study is to learn more about the use of the study medicine, volixibat, for the treatment of pruritus (itching) associated with Primary Biliary Cholangitis (PBC), and to assess the possible impact on the disease progression of PBC.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: Southern California Research Center, Coronado, California
Conditions: Primary Biliary Cholangitis, PBC
A Master Protocol (AMAZ): A Study of Mirikizumab (LY3074828) in Pediatric Participants With Ulcerative Colitis or Crohn's Disease (SHINE-ON)
Recruiting
The main purpose of this study is to evaluate the long-term efficacy of mirikizumab in pediatric participants with ulcerative colitis (UC) or Crohn's disease (CD). The study will last about 172 weeks and may include up to 44 visits. Additional treatment may be available to participants via a Continued Access Period.
Gender:
ALL
Ages:
Between 2 years and 19 years
Trial Updated:
08/21/2025
Locations: UCSF Medical Center at Mission Bay, San Francisco, California
Conditions: Ulcerative Colitis, Ulcerative Colitis Chronic, Inflammatory Bowel Diseases, Crohn's Disease
Testing What Happens When an Immunotherapy Drug (Pembrolizumab) is Given by Itself Compared to the Usual Treatment of Chemotherapy With Radiation After Surgery for Recurrent Head and Neck Squamous Cell Carcinoma
Recruiting
This phase II trial studies the effect of pembrolizumab alone compared to the usual approach (chemotherapy \[cisplatin and carboplatin\] plus radiation therapy) after surgery in treating patients with head and neck squamous cell carcinoma that has come back (recurrent) or patients with a second head and neck cancer that is not from metastasis (primary). Radiation therapy uses high energy radiation or protons to kill tumor cells and shrink tumors. Cisplatin is in a class of medications known as p... Read More
Gender:
ALL
Ages:
Between 18 years and 79 years
Trial Updated:
08/21/2025
Locations: Kaiser Permanente-Anaheim, Anaheim, California
Conditions: Recurrent Head and Neck Squamous Cell Carcinoma, Recurrent Hypopharyngeal Squamous Cell Carcinoma, Recurrent Laryngeal Squamous Cell Carcinoma, Recurrent Oral Cavity Squamous Cell Carcinoma, Recurrent Oropharyngeal Squamous Cell Carcinoma
Testing the Addition of MEDI4736 (Durvalumab) to Chemotherapy Before Surgery for Patients With High-Grade Upper Urinary Tract Cancer
Recruiting
This phase II/III trial compares the effect of adding durvalumab to chemotherapy versus chemotherapy alone before surgery in treating patients with upper urinary tract cancer. Immunotherapy with monoclonal antibodies, such as durvalumab, 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 methotrexate, vinblastine, doxorubicin, cisplatin, and gemcitabine work in different ways to stop the growth of... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: Sutter Auburn Faith Hospital, Auburn, California
Conditions: Renal Pelvis and Ureter Urothelial Carcinoma
Testing the Addition of Pembrolizumab, an Immunotherapy Cancer Drug to Olaparib Alone as Therapy for Patients With Pancreatic Cancer That Has Spread With Inherited BRCA Mutations
Recruiting
This phase II trial studies whether adding pembrolizumab to olaparib (standard of care) works better than olaparib alone in treating patients with pancreatic cancer with germline BRCA1 or BRCA2 mutations that has spread to other places in the body (metastatic). BRCA1 and BRCA2 are human genes that produce tumor suppressor proteins. These proteins help repair damaged deoxyribonucleic acid (DNA) and, therefore, play a role in ensuring the stability of each cell's genetic material. When either of t... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: Mission Hope Medical Oncology - Arroyo Grande, Arroyo Grande, California
Conditions: Stage IV Pancreatic Cancer AJCC v8, Metastatic Pancreatic Adenocarcinoma
121 - 132 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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