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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.
2641 - 2652 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
Buy Retatrutide Online Through Celia
Recruiting
Retatrutide (formerly M25) is an investigational peptide being studied for its potential in supporting weight management and metabolic health. It acts on GLP-1, GIP, and glucagon receptors to influence appetite, energy regulation, and fat metabolism.
Conditions:
Healthy
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Semaglutide and Tirzepatide are advanced GLP-1 medications designed to support weight management and metabolic health. They work by targeting GLP-1 receptors in the body, helping regulate appetite, improve blood sugar control, and support sustainable weight loss (up to 22% of body weight).
Get $50 off your first order using promo code: policy-lab-50
Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Featured Trial
Birth Control Clinical Research Study
Recruiting
Living with obesity and looking for a birth control option that is right for you? Clinical trials are now enrolling women with a body mass index (BMI) of 30 or more in the area to help study a potential new progestin-only contraceptive patch. Participating in research studies can help advance birth control options. Don’t let financial stress hold you back. All study-related assessments, care, and study patch are available at no cost. You may also be reimbursed for study-related travel.
Conditions:
Obesity
Overweight
Overweight and Obesity
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 Study to Investigate the Safety and Tolerability of Ziftomenib in Combination With Venetoclax/Azacitidine, Venetoclax, or 7+3 in Patients With AML
Recruiting
This Phase 1 study will assess the safety, tolerability, and preliminary antileukemic activity of ziftomenib in combination with venetoclax and azacitidine (ven/aza), ven, and 7+3 for two different molecularly-defined arms, NPM1-m and KMT2A-r.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/03/2025
Locations: Moores UC San Diego Cancer Center, La Jolla, California
Conditions: Acute Myeloid Leukemia, Mixed Lineage Acute Leukemia, Mixed Lineage Leukemia Gene Mutation, Mixed Phenotype Acute Leukemia, Refractory AML, AML With Mutated NPM1, Acute Myeloid Leukemia Recurrent, Acute Myeloid Leukemia, in Relapse, NPM1 Mutation, KMT2Ar, Myeloid Sarcoma
Survival and Dialysis Independency in Highly Sensitized Patients After Desensitization With Imlifidase and Tx of Kidneys
Recruiting
The goal of this follow-up study is to learn about long-term patient survival and graft function in highly sensitized patients who have received desensitization treatment with imlifidase or standard of care (SoC) in order to enable kidney transplantation in clinical study ConfIdeS (20-HMedIdeS-17, NCT04935177).
Gender:
ALL
Ages:
All
Trial Updated:
06/03/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Kidney Transplantation in Highly Sensitized Patients
Access Cannulation Trial II
Recruiting
This is a pivotal, interventional, prospective, single-arm, open-label, multi-site clinical investigation intended to support FDA clearance of the study device based on the safety and efficacy of the device in cannulating arteriovenous fistulas (AVFs) for hemodialysis procedures.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/03/2025
Locations: Apex Research, Riverside, California
Conditions: Dialysis; Complications, Vascular Access Complication
OssDsign® Spine Registry Study ("Propel")
Recruiting
The purpose of this multi-center, prospective, observational registry is to gather information on the clinical outcomes and real-world use of commercially available bone graft substitutes manufactured by OssDsign® AB, in patients who require spine fusion.
Gender:
ALL
Ages:
21 years and above
Trial Updated:
06/03/2025
Locations: Community Health Partners Neuroscience, Fresno, California
Conditions: Degenerative Disc Disease, Spinal Stenosis
Efficacy and Safety of Remibrutinib Compared to Teriflunomide in Participants With Relapsing Multiple Sclerosis (RMS)
Recruiting
To compare the efficacy and safety of remibrutinib versus teriflunomide in patients with relapsing multiple sclerosis (RMS)
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
06/03/2025
Locations: The Research and Education Inst. of Alta Bates Summit Med. Grp, Berkeley, California
Conditions: Relapsing Multiple Sclerosis
A Study to Evaluate How Safe Pozelimab + Cemdisiran Combination Therapy is and How Well it Works in Adult Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH) Who Have Not Recently Received or Have Not Received Complement Inhibitor Treatment
Recruiting
This study is researching a clinical treatment combination with two experimental drugs called pozelimab and cemdisiran. The study is focused on people with paroxysmal nocturnal hemoglobinuria (PNH). The aim of the study is to see how safe and effective the pozelimab + cemdisiran combination is for people with PNH and how the combination compares with 2 existing treatments: ravulizumab and eculizumab.
The pozelimab + cemdisiran combination may be referred to as "study drugs". Ravulizumab and ecu... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/03/2025
Locations: The Oncology Institute of Hope & Innovation, Whittier, California
Conditions: Paroxysmal Nocturnal Hemoglobinuria
Neuroprotection With N-acetyl Cysteine for Patients With Progressive Multiple Sclerosis
Recruiting
This study evaluates the effectiveness of N-acetyl cysteine (NAC) in the treatment of progressive multiple sclerosis. Half of the patients will receive NAC, while the other half will receive a placebo.
Gender:
ALL
Ages:
Between 40 years and 70 years
Trial Updated:
06/03/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Multiple Sclerosis, Multiple Sclerosis, Primary Progressive, Multiple Sclerosis, Secondary Progressive
Study to Evaluate Safety and Efficacy of Different PANZYGA Dose Regimens in Pediatric Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP) Patients
Recruiting
Safety and Efficacy of Different PANZYGA Dose Regimens in Pediatric Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP) Patients
Gender:
ALL
Ages:
Between 2 years and 17 years
Trial Updated:
06/03/2025
Locations: Octapharma Research Site, Orange, California
Conditions: Pediatric Chronic Inflammatory Demyelinating Polyneuropathy
Optical Coherence Tomography Guided Laser Treatment of Basal Cell Carcinoma
Recruiting
Optical coherence tomography guided laser treatment of basal cell carcinoma
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
06/03/2025
Locations: UCI Health Gottschalk Medical Plaza, Irvine, California
Conditions: Basal Cell Carcinoma, Superficial Basal Cell Carcinoma, Nodular Basal Cell Carcinoma
Effects of Multi-day Interruptions in Sitting on Type 2 Diabetes-relevant Outcomes in Children
Recruiting
The overall objective of this in-lab randomized controlled trial is to test the efficacy of multi-day interruptions in sedentary behavior vs. single bouts of sustained exercise on metabolic, cognitive, affective, and cardiac autonomic nervous system responses in children with overweight and obesity who are at risk for type 2 diabetes. The use of continuous glucose monitoring will provide insight into the daily and cumulative metabolic effects of each condition that have thus far not been studied... Read More
Gender:
ALL
Ages:
Between 8 years and 11 years
Trial Updated:
06/03/2025
Locations: Britni Ryan Belcher, PhD, MPH, Los Angeles, California
Conditions: Sedentary Behavior, Affect, Metabolic Disturbance, Anxiety, Cardiac Autonomic Nervous System Function
Phase 1/1b/2 Study of Oral PMD-026 in Patients With Metastatic Breast Cancer
Recruiting
The purpose of this study is to test the safety and tolerability of PMD-026 in patients with metastatic breast cancer. PMD-026 is a targeted oral agent designed to kill tumor cells in metastatic breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/03/2025
Locations: University of California, Los Angeles (UCLA), Los Angeles, California
Conditions: Metastatic Breast Cancer
A 5-year Longitudinal Observational Study of Patients Undergoing Therapy for Inflammatory Bowel Disease
Recruiting
TARGET-IBD is a 5-year, longitudinal, observational study of adult and pediatric patients (age 2 and above) being managed for Inflammatory Bowel Disease (IBD) in usual clinical practice. TARGET-IBD will create a research registry of patients with IBD within academic and community real-world practices in order to assess the safety and effectiveness of current and future therapies.
Gender:
ALL
Ages:
2 years and above
Trial Updated:
06/03/2025
Locations: Om Research, Lancaster, California
2641 - 2652 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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