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California Paid Clinical Trials
A listing of 5605 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
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California is currently home to 5605 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)
Observational Study to Evaluate the Efficacy of Sustained QUTENZA® Use in Painful Diabetic Peripheral Neuropathy
Recruiting
The purpose of this post-market observational study is to provide real-world evidence to support the repeated use of QUTENZA in patients with PDPN and to evaluate the potential for pain and concomitant medication use reduction.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
07/22/2025
Locations: Pacific Research Institute, Lakeport, California
Conditions: Peripheral Diabetic Neuropathy, Painful Diabetic Neuropathy
Evaluation of a Simple-Prep Controlled Embolic
Recruiting
The objective of this study is to evaluate the safety and effectiveness of the GPX® Embolic Device when used as indicated for embolization requiring distal vessel penetration in 114 subjects in up to 25 investigational sites in the USA, New Zealand, and Canada.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/22/2025
Locations: University of California San Diego Altman Clinical and Translation Research Institute, La Jolla, California
Conditions: Vascular Tumor, Renal Angiomyolipoma, Renal Cell Carcinoma, Bone Tumor, Embolization, Portal Vein Embolization
Study to Evaluate the Effectiveness and Safety of Ozanimod Compared to Fingolimod in Children and Adolescents With Relapsing Remitting Multiple Sclerosis
Recruiting
The purpose of this study is to evaluate the effectiveness, safety, tolerability, drug levels and drug effects of ozanimod compared to fingolimod in children and adolescents with relapsing remitting multiple sclerosis (RRMS).
Gender:
ALL
Ages:
Between 10 years and 17 years
Trial Updated:
07/22/2025
Locations: Local Institution - 0114, Loma Linda, California
Conditions: Multiple Sclerosis, Relapsing-Remitting
Optimizing Chronic Pain Care With Mindfulness and Chronic Pain Management Visits
Recruiting
The primary aim of this implementation-effectiveness trial is to examine the effectiveness of Mindfulness-Oriented Recovery Enhancement (MORE) and patient-centered chronic pain management visits in primary care as interventions to reduce chronic pain, improve quality of life, and reduce opioid-related harms among chronic pain patients on long-term opioid therapy.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/22/2025
Locations: UCSD Health, La Jolla, California
Conditions: Chronic Pain, Prescription Opioid Misuse, Substance-Related Disorders, Pain, Narcotic-Related Disorders, Chemically-Induced Disorders, Mental Disorders, Opioid-Related Disorders, Neurologic Manifestations
Saruparib (AZD5305) Plus Camizestrant Compared With CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant in HR-Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified), BRCA1, BRCA2, or PALB2m Advanced Breast Cancer
Recruiting
The primary objective of the study is to measure efficacy of saruparib (AZD5305) plus camizestrant compared with physician's choice CDK4/6i plus ET in patients with BRCA1, BRCA2, or PALB2m, HR-positive, HER2-negative (defined as IHC 0, 1+, 2+/ ISH non-amplified) advanced breast cancer
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/22/2025
Locations: Research Site, Glendale, California
Conditions: Advanced Breast Cancer
Effect of Retatrutide Compared With Placebo in Participants With Type 2 Diabetes and Moderate or Severe Renal Impairment, With Inadequate Glycemic Control on Basal Insulin, With or Without Metformin and/or SGLT2 Inhibitor (TRANSCEND-T2D-3)
Recruiting
The purpose of this study is to investigate the efficacy and safety of retatrutide compared with placebo in participants with Type 2 Diabetes and renal impairment, with inadequate glycemic control on basal insulin alone or a combination of basal insulin with or without metformin and/or sodium-glucose cotransporter-2 (SGLT2) inhibitor. The study will last about 14 months and may include up to 22 visits.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/22/2025
Locations: Kidney & Hypertension Center - Apple Valley, Apple Valley, California
Conditions: Type 2 Diabetes
Safety and Effectiveness of Cochlear Implantation in an Expanded Adult Population
Recruiting
This study aims to evaluate the safety and efficacy of cochlear implantation for adults with bilateral sensorineural hearing loss who currently do not meet the FDA-approved indications for cochlear implantation. Following cochlear implantation, participants will complete speech perception assessments and questionnaires over the course of seven visits.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/22/2025
Locations: Pacific Neuroscience Institute, Santa Monica, California
Conditions: Hearing Loss, Sensorineural, Hearing Loss, Bilateral
A Study to Investigate the Effect of Lepodisiran on the Reduction of Major Adverse Cardiovascular Events in Adults With Elevated Lipoprotein(a) - ACCLAIM-Lp(a)
Recruiting
The purpose of this study is to evaluate the efficacy of lepodisiran in reducing cardiovascular risk in participants with high lipoprotein(a) who have cardiovascular disease or are at risk of a heart attack or stroke. The study drug will be administered subcutaneously (SC) (under the skin). Approximately 1700 additional participants will be enrolled in an addendum to explore Lp(a) lowering with an alternative dosing schema.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/22/2025
Locations: National Heart Institute, Beverly Hills, California
Conditions: Atherosclerotic Cardiovascular Disease (ASCVD), Elevated Lp(a)
SELVA: A Phase 3 Study Evaluating QTORIN 3.9% Rapamycin Anhydrous Gel in the Treatment of Microcystic Lymphatic Malformations
Recruiting
SELVA: A Multicenter, Phase 3 Baseline-Controlled Study Evaluating the Safety and Efficacy of QTORIN 3.9% Rapamycin Anhydrous Gel in the Treatment of Microcystic Lymphatic Malformations
The main purpose of this study is to assess the change in microcystic lymphatic malformations IGA after 24 weeks of treatment with QTORIN 3.9% Rapamycin Anhydrous Gel in approximately 40 participants with microcystic lymphatic malformations. Efficacy will be evaluated at 24 weeks and patients have the option of... Read More
Gender:
ALL
Ages:
3 years and above
Trial Updated:
07/22/2025
Locations: Children's Hospital of Orange County, Irvine, California
Conditions: Microcystic Lymphatic Malformation
A Study of SNDX-5613 in Combination With Intensive Chemotherapy in Participants With Acute Myeloid Leukemias
Recruiting
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics, and clinical activity of SNDX-5613 in combination with intensive chemotherapy in participants with newly diagnosed acute myeloid leukemia (AML) harboring alterations in KMT2A, NPM1, or NUP98 genes.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
07/22/2025
Locations: UCLA Medical Hematology, Burbank, California
Conditions: Acute Myeloid Leukemias
LUNAR-2: TTFields With Pembrolizumab + Platinum-based Chemotherapy for Metastatic NSCLC
Recruiting
This study, known as LUNAR-2, aims to investigate the effectiveness and safety of using TTFields, delivered by the NovoTTF-200T device, concomitantly administered with pembrolizumab and platinum-based chemotherapy for patients with advanced non-small cell lung cancer that has spread to other parts of the body. The primary goals of the study are to assess overall survival and progression-free survival. Secondary objectives include analyzing outcomes based on the specific histology (subtype) of th... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/22/2025
Locations: St. Jude Herritage Medical Group, Fullerton, California
Conditions: Metastatic Non-small Cell Lung Cancer
Intra-tumoral Mitazalimab (CD40 Antibody) With Irreversible Electroporation (IRE) in Locally Advanced Pancreas Cancer
Recruiting
This is a phase I study of an agonistic CD40 antibody (mitazalimab) injected intratumorally at the time of surgical IRE in patients with locally advanced pancreatic cancer. Intratumoral delivery has potential to be more effective than systemic (intravenous) delivery while decreasing the systemic side effects of immunotherapy. We hypothesize that local delivery of mitazalimab at the time of IRE in patients with locally advanced pancreatic cancer will be safe, augment the immune effects of IRE, an... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/22/2025
Locations: UCSD Moores Cancer Center, La Jolla, California
Conditions: Pancreatic Cancer
1561 - 1572 of 5605
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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