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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.
2353 - 2364 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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Lose 20% of Body Weight With GLP-1's
Recruiting
Policy Lab has partnered with OnlineSemaglutide.org to offer trusted access to tirzepatide and other GLP-1 medications, including generic alternatives to Ozempic® and Wegovy®.
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).
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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
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
Featured Trial
Stroke Clinical Study
Recruiting
A clinical study for people that suffer with Stroke
Conditions:
Stroke
Radioimmunotherapy (111Indium/225Actinium-DOTA-daratumumab) for the Treatment of Relapsed/Refractory Multiple Myeloma
Recruiting
This phase I trial tests the safety, side effects, and best dose of actinium Ac 225-DOTA-daratumumab (225Ac-DOTA-daratumumab) in combination with daratumumab and indium In 111-DOTA-daratumumab (111In-DOTA-daratumumab) in treating patients with multiple myeloma that does not respond to treatment (refractory) or that has come back (recurrent). Daratumumab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. 111In-DOTA-daratumumab and 225Ac-DOTA-daratumum... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/19/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Recurrent Plasma Cell Myeloma, Refractory Plasma Cell Myeloma
A Research Study on How Well Concizumab Works for You if You Have Haemophilia A or B With or Without Inhibitors
Recruiting
This study will test how well a new medicine called concizumab works for participants who have haemophilia A or B with or without inhibitors. The purpose is to show that concizumab can prevent bleeds and is safe to use.
Participants will have to inject the study medicine every day under the skin with a pen-injector.
The study will last for at least 2 years and up to about 4 years. The length of time the participant will be in the study depends on if the study medicine will be available for pur... Read More
Gender:
ALL
Ages:
All
Trial Updated:
06/19/2025
Locations: Rady Childrens Hosp San Diego, San Diego, California
Conditions: Haemophilia A and B With and Without Inhibitors
Posaconazole (MK-5592) Intravenous and Oral in Children (<2 Years) With Invasive Fungal Infection (MK-5592-127)
Recruiting
This study aims to estimate the pharmacokinetics (PK) of posaconazole (POS, MK-5592) intravenous (IV) and powder for oral suspension (PFS) formulations in pediatric participants \<2 years of age with invasive fungal infection (IFI).
Gender:
ALL
Ages:
Between 1 day and 2 years
Trial Updated:
06/19/2025
Locations: Rady Children's Hospital-San Diego ( Site 2101), San Diego, California
Conditions: Invasive Fungal Infection
A Study to Evaluate Efficacy and Safety of Perampanel Administered as an Adjunctive Therapy in Pediatric Participants With Childhood Epilepsy
Recruiting
The purpose of the study is to evaluate the efficacy of perampanel as measured by the 50 percent (%) responder rate during the maintenance period of the core study for seizure frequency in participants with pediatric epileptic syndrome (Cohort 1) and partial-onset seizures (POS) (Cohort 2).
Gender:
ALL
Ages:
Between 1 month and 18 years
Trial Updated:
06/19/2025
Locations: David Geffen School of Medicine at UCLA, Los Angeles, California
Conditions: Pediatric Epileptic Syndrome, Partial-onset Seizures
Long-Term Real-World Outcomes Study on Patients Implanted With a Neurostimulator
Recruiting
The REALITY study is a prospective, post-market, non-randomized, multi-center, single-arm, open-label study intended to collect short- and long-term safety and effectiveness data on various populations implanted with Abbott's neurostimulation systems.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/19/2025
Locations: California Orthopedics & Spine, Larkspur, California
Conditions: Chronic Pain
Nonhealing Diabetic Foot Ulcers Treated With Standard of Care (SOC) Alone or Standard of Care and Amnion-Intermediate-Chorion (AIC)
Recruiting
The purpose of this study is to determine how well our dHPT (Dehydrated Human Placental Tissue) Product and Standard of Care work when compared to Standard of Care alone in achieving complete closure of diabetic foot.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: 004, Mission Viejo, California
Conditions: Diabetic Foot Ulcer
Hair Biomarkers Study
Recruiting
Young children aged 0-4 years may be exposed to adverse childhood experiences (ACEs) and/or early life adversity (ELA), which are linked with worse physical and mental health across their lifespan. On the other hand, positive childhood experiences (PCEs) can build resilience and prevent or protect against these detrimental outcomes. Data analyses will assess the interactions of ACEs, PCEs, parenting, and poverty on the early social psychology of childhood and develop objective measures for alter... Read More
Gender:
ALL
Ages:
Between 6 months and 24 months
Trial Updated:
06/18/2025
Locations: Stanford University, Palo Alto, California
Conditions: Healthy
Performance of Systane PRO Versus Refresh Optive Mega-3
Recruiting
Single site, prospective, double-masked, randomized-controlled, cross-over study of the subjective and objective performance of 2 different eyedrops. Subjects will be assessed at a screening visit, and 3 follow-up visits. Clinical evaluations will include patient questionnaires.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
06/18/2025
Locations: Scripps Poway Eyecare & Optometry, San Diego, California
Conditions: Dry Eye
Photon Craniospinal Irradiation for the Treatment of Leptomeningeal Disease Secondary to Breast Cancer or Non-small Cell Lung Cancer
Recruiting
This phase II trial tests how well craniospinal irradiation (CSI) using photon volumetric modulated arc radiotherapy (VMAT) works in treating patients with breast cancer or non-small cell lung cancer (NSCLC) that has spread from the original (primary) tumor to the cerebrospinal fluid and meninges (thin layers of tissue that cover and protect the brain and spinal cord) (leptomeningeal disease). Radiation therapy uses high energy x-rays, particles, or radioactive seeds to kill cancer cells and shr... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Anatomic Stage IV Breast Cancer AJCC v8, Metastatic Breast Carcinoma, Metastatic Lung Non-Small Cell Carcinoma, Metastatic Malignant Neoplasm in the Leptomeninges, Stage IV Lung Cancer AJCC v8
A Study to Learn About How the Flu and COVID-19 Vaccines Act in Healthy People
Recruiting
The purpose of this study is to learn about how the flu and COVID vaccines act when given alone or when mixed together.
This study is seeking healthy participants aged 18 or older. All participants in this study will receive only 1 shot to their arm, either a flu or COVID vaccine, alone or mixed. Participants will take part in this study for about 6 months, and participants will need to visit the clinical study site at least 4 times.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: Anaheim Clinical Trials, LLC, Anaheim, California
Conditions: Influenza, COVID-19 (Coronavirus Disease 2019)
Vedolizumab Plus Post-transplant Cyclophosphamide and Short Course Tacrolimus for the Prevention of Graft Versus Host Disease in Patients Undergoing Allogeneic Hematopoietic Cell Transplantation After Reduced Intensity Conditioning
Recruiting
This phase II trial studies how well vedolizumab plus post-transplant cyclophosphamide (PTCy) and short course tacrolimus work for the prevention of graft versus host disease (GVHD) in patients undergoing allogeneic hematopoietic cell transplantation (HCT) after reduced intensity conditioning. Allogeneic HCT is a procedure in which a person receives blood-forming stem cells (cells from which all blood cells develop) from a donor. Giving reduced conditioning chemotherapy before an allogeneic HCT... Read More
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
06/18/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Acute Lymphoblastic Leukemia, Acute Myeloid Leukemia, Chronic Myelomonocytic Leukemia, Graft Versus Host Disease, Myelodysplastic Syndrome, Myeloproliferative Neoplasm
DG1 Spectacle Lens for Myopia Progression Control in Children
Recruiting
The goal of this clinical trial is to evaluate the safety and efficacy of the DG1 spectacle lens for myopia progression control in children.
* To assess if the DG1 lens will slow the progression of myopia through an adjusted mean difference (e.g., age and baseline SER) of approximately 0.75D in cycloplegic spherical equivalent autorefraction refractive error compared to single-vision (SV) spectacles over the study period.
* To assess if DG1 lens will slow the progression of myopia through an ad... Read More
Gender:
ALL
Ages:
Between 7 years and 10 years
Trial Updated:
06/18/2025
Locations: Irvine Vision Center, Irvine, California
Conditions: Myopia
2353 - 2364 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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