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California Paid Clinical Trials
A listing of 5618 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
2185 - 2196 of 5618
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California is currently home to 5618 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 Offer
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Recruiting
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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
Multiple Doses of Neural Stem Cell Virotherapy (NSC-CRAd-S-pk7) for the Treatment of Recurrent High-Grade Gliomas
Recruiting
This phase I trial studies the effect of multiple doses of NSC-CRAd-S-pk7 in treating patients with high-grade gliomas that have come back (recurrent). NSC-CRAd-S-pk7 consists of neural stem cells that carry a virus, which can kill cancer cells. Giving multiple doses of NSC-CRAd-S-pk7 may kill more tumor cells.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/13/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Recurrent Anaplastic Astrocytoma, Recurrent Anaplastic Oligoastrocytoma, Recurrent Anaplastic Oligodendroglioma, Recurrent Glioblastoma, Recurrent Gliosarcoma, Recurrent Malignant Glioma, Recurrent WHO Grade II Glioma, Recurrent WHO Grade III Glioma
A Phase I/IIa Study of AZD8205 Given Alone or in Combination With Anticancer Drugs, in Participants With Advanced or Metastatic Solid Malignancies
Recruiting
This research study is studying a new compound, AZD8205, as a possible treatment for advanced or metastatic solid tumours alone or in combination with anti-cancer agents
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/13/2025
Locations: Research Site, Duarte, California
Conditions: Breast Cancer, Ovarian Cancer, Endometrial Cancer, Biliary Tract Carcinoma, Squamous Non-Small Cell Lung Cancer
Long Term Evaluation of Safety and Efficacy of Tildrakizumab in Patients With Psoriatic Arthritis
Recruiting
An open label phase 3 study
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/13/2025
Locations: Sunpharma site no. 30, Covina, California
Conditions: Psoriatic Arthritis
Clarifying the Optimal Application of SLT Therapy Trial
Recruiting
The goal of this study is to understand if SLT performed at low energy is as effective as SLT performed at standard energy, and also to see if repeating SLT at low energy once a year will prevent or delay the need for daily eye drop medications better than waiting for SLT to wear off before repeating it.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/13/2025
Locations: Harvard Eye Associates, Laguna Hills, California
Conditions: Glaucoma and Ocular Hypertension
TTX-080 HLA-G Antagonist in Subjects With Advanced Cancers
Recruiting
TTX-080-001 is a Phase 1, open label, dose escalation and dose expansion clinical study to determine the safety, tolerability, and recommended Phase 2 dose of TTX-080 monotherapy (HLA-G inhibitor) and in combination with either pembrolizumab (PD-1 inhibitor), cetuximab (EGFR inhibitor) or FOLFIRI plus cetuximab (EGFR inhibitor) in patients with advanced refractory / resistant solid malignancies including metastatic colorectal cancer (mCRC) patients.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/13/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Cancer
Characterization of Inclusion Body Myopathy Associated With Paget's Disease of Bone and Frontotemporal Dementia (IBMPFD)
Recruiting
The investigators are researching families with inherited inclusion body myopathy (IBM) and/or Paget disease of bone (PDB) and/or dementia (FTD) which is also called IBMPFD. IBMPFD is caused by mutations in the VCP gene. Our main goal is to understand how changes in the VCP gene cause the muscle, bone and cognitive problems associated with the disease.
The investigators are collecting biological specimen such as blood and urine samples, family and medical histories, questionnaire data of patien... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/13/2025
Locations: University of California, Irvine, Irvine, California
Conditions: Inclusion Body Myopathy With Early-onset Paget Disease and Frontotemporal Dementia, Paget Disease of Bone, Frontotemporal Dementia, Myopathy
Characterization of Familial Myopathy and Paget Disease of Bone
Recruiting
The researcher wants to explore the genetic causes of muscle disease. The researcher is particularly interested in muscle disorders that occur in combination with diseases of bone that appear to be passed on from generation to generation.
Diffuse Optical Spectroscopy will measure the concentrations of blood, water, and lipids (fats, for example) in your tissues. This device essentially measures the color of tissues in order to determine tissue physiology (its physical and chemical processes).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/13/2025
Locations: Hewitt Hall, Irvine, California
Conditions: Muscle Disorder, Bone Disorder
Acetazolamide in Persons With Type 1 Diabetes - Crossover Trial
Recruiting
The goal of this study is to learn about the effect of the study drug acetazolamide in individuals with Type 1 Diabetes. Specifically, whether acetazolamide provides benefits to the kidneys while minimizing any side effects of the drug. These changes will be measured by laboratory tests that tell us how well the kidneys are functioning.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/12/2025
Locations: UC San Diego Altman Clinical & Translational Research Institute, La Jolla, California
Conditions: Type 1 Diabetes
A Study of Sotatercept (MK-7962) in Healthy Females Administered as a Liquid Formulation in an Autoinjector Versus the Lyophilized Formulation (MK-7962-027)
Recruiting
The goal of the study is to learn what happens to different forms of sotatercept medications in a healthy person's body over time. Researchers want to know if there is a difference in the healthy person's body when different forms of sotatercept medications are given.
Gender:
FEMALE
Ages:
Between 18 years and 85 years
Trial Updated:
06/12/2025
Locations: Anaheim Clinical Trials ( Site 0007), Anaheim, California
Conditions: Healthy
Continuous Versus Single Injection Adductor Canal Blocks for Outpatient Total Knee Arthroplasty
Recruiting
This is a single-center pilot study to determine if an adductor canal continuous nerve block is superior to single injection nerve block following total knee arthroplasty. Investigators will randomize participants to either continuous nerve block or single injection nerve block for the adductor canal preoperatively. They will assess differences in pain (measured in numeric rating scale), opioid consumption, and physical therapy milestones from postoperative day 0 to 7.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/12/2025
Locations: University of California, San Diego, La Jolla, California
Conditions: Acute Postoperative Pain, Surgery
NeuroFLiPP: Parametric PET of Neuroinflammation in Fatty Liver Disease
Recruiting
Alzheimer's Disease and related dementias (ADRD) affect about 6 million people in the U.S. and are the fifth leading cause of death for adults over 65. Recent research is investigating how chronic liver diseases like Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD), which affects one-third of the U.S. population, might influence ADRD through the liver-brain axis. MASLD shares risk factors with Alzheimer's, such as diabetes and hypertension, and studies have linked MASLD to increa... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/12/2025
Locations: UC Davis EXPLORER Molecular Imaging Center, Sacramento, California
Conditions: Positron Emission Tomography
Kidney Transplantation From Donors With HIV: Impact on Rejection and Long-Term Outcomes (Expanding HOPE Kidney)
Recruiting
This research is being done to better understand rejection in transplant recipients with HIV who receive kidneys from donors with vs without HIV.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/12/2025
Locations: University of California, Los Angeles, Los Angeles, California
Conditions: Hiv
2185 - 2196 of 5618
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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