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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.
3385 - 3396 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).
Get $50 off your first order using promo code: policy-lab-50
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
First in Human Study of TORL-2-307-ADC in Participants With Advanced Cancer
Recruiting
This first-in-human study will evaluate the safety, tolerability, pharmacokinetics, and antitumor activity of TORL-2-307-ADC in patients with advanced cancer
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/02/2025
Locations: Providence St. Jude Medical Center, Fullerton, California
Conditions: Advanced Solid Tumor, Gastric Cancer, Pancreas Cancer, Gastroesophageal Junction Adenocarcinoma
Pilot Test of Apnea and Insomnia Relief for Veterans With Gulf War Illness
Recruiting
The purpose of this study is to determine whether a behavioral sleep treatment improves sleep and other Gulf War Illness (GWI) symptoms in Gulf War Veterans with GWI.
Gender:
ALL
Ages:
Between 48 years and 80 years
Trial Updated:
04/02/2025
Locations: VA Health Care System, San Francisco, California
Conditions: Gulf War Illness
International Registry of Patients With Alpha Thalassemia
Recruiting
This is an international prospective registry of patients with Alpha thalassemia to understand the natural history of the disease and the outcomes of fetal therapies, with the overall goal of improving the prenatal management of patients with Alpha thalassemia.
Gender:
ALL
Ages:
All
Trial Updated:
04/02/2025
Locations: University of California San Francisco, San Francisco, California
Conditions: Alpha-Thalassemia, Alpha Thalassemia Major, Alpha Thalassemia Minor
Depleted Donor Stem Cell Transplant in Children and Adults With Fanconi Anemia After Being Conditioned With a Regimen Containing Briquilimab
Recruiting
The objective of this clinical trial is to develop a cell therapy for Fanconi Anemia which enables enhanced donor hematopoietic and immune reconstitution with decreased toxicity by transplanting depleted stem cells from a donor after using an experimental antibody treatment called JSP-191 as a part of conditioning. This experimental treatment will hopefully cause fewer side effects than chemotherapy (the current standard of care method).
Participants will be administered the conditioning regime... Read More
Gender:
ALL
Ages:
2 years and above
Trial Updated:
04/02/2025
Locations: Stanford University, Stanford, California
Conditions: Fanconi Anemia
Effect of PCSK9 Inhibition on Cardiovascular Risk in Treated HIV Infection (EPIC-HIV Study)
Recruiting
Atherosclerosis in the setting of HIV infection is distinct and includes increased vascular inflammation, worsened endothelial function, and a predominance of non-calcified plaque. These outcomes can be assessed using specialized noninvasive imaging which strongly predict future CV events in the general population.
PCSK9 has emerged as an important pharmacologic target for cholesterol lowering in the general population and recent studies among individuals without HIV have shown that PCSK9 inhib... Read More
Gender:
ALL
Ages:
40 years and above
Trial Updated:
04/02/2025
Locations: San Francisco General Hospital, San Francisco, California
Conditions: Dyslipidemias, Cardiovascular Diseases, HIV Infections
Collection of Blood for Multiple Collaborative Studies
Recruiting
This study seeks to confidentially collect blood from HIV-positive individuals and HIV-negative controls to provide basic scientists with specimens for collaborative studies.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/02/2025
Locations: San Francisco General Hospital, San Francisco, California
Conditions: HIV
The Use of Leukapheresis to Support HIV Pathogenesis Studies
Recruiting
Despite the dramatic improvements that have resulted from combination antiretroviral treatment, long-term efficacy, toxicity, cost, and the requirements for life-long adherence remain as formidable challenges. Also, there is emerging consensus that persistent HIV-associated disease occurs during long-term highly active antiretroviral therapy (HAART). This disease may be due to either direct drug-toxicity and/or persistent viral replication/production and/or persistent HIV-associated inflammation... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/02/2025
Locations: San Francisco General Hospital, San Francisco, California
Conditions: HIV
A Study of Carmustine With and Without Ethanol in Subjects With Lymphoma
Recruiting
A phase 2 multicenter study of VI-0609 vs BiCNU in the BEAM high-intensity conditioning regimen for AHCT in subjects with lymphomas.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/01/2025
Locations: City of Hope National Medical Center, Duarte, California
Conditions: Lymphoma Undergoing Autologous Hematopoietic Cell Transplantation
WATER IV Prostate Cancer
Recruiting
This is a multicenter, prospective, randomized clinical trial that aims to assess the safety and efficacy of Aquablation Therapy in men with low-risk to intermediate to high-risk localized prostate cancer who are candidates for, or have opted for, prostatectomy. Participants will be randomized to either Aquablation Therapy or radical prostatectomy and followed up to 10 years.
Gender:
MALE
Ages:
45 years and above
Trial Updated:
04/01/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Localized Prostate Cancer
Ketamine-Assisted Recovery for Methamphetamine Use Disorder & HIV
Recruiting
The goal of this clinical trial is to learn whether it is possible to use intramuscular (IM) ketamine in combination with psychotherapy to treat moderate-to-severe methamphetamine use disorder (MeUD) in publicly insured patients with or at-risk for HIV disease. The main questions it aims to answer are:
* Do publicly insured patients find ketamine-assisted psychotherapy feasible and acceptable as a potential treatment for MeUD?
* Is IM ketamine safe and tolerable among patients with MeUD?
Parti... Read More
Gender:
ALL
Ages:
Between 18 years and 69 years
Trial Updated:
04/01/2025
Locations: San Francisco Department of Public Health, San Francicso, California
Conditions: Methamphetamine Use Disorder
Enfortumab Vedotin and Pembrolizumab Combined With Radiotherapy in Muscle Invasive Bladder Cancer
Recruiting
This phase Ib/II trial studies the side effects, best dose, and effectiveness of enfortumab vedotin (EV) in combination with pembrolizumab and radiation therapy for treating patients with muscle invasive bladder cancer. Standard of care treatment for muscle invasive bladder cancer is chemotherapy, to shrink the tumor before the main treatment is given (neoadjuvant), followed by surgery to remove all of the bladder as well as nearby tissues and organs (radical cystectomy). In cases where patients... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/01/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Bladder Cancer, Muscle-Invasive Bladder Carcinoma, Stage II Bladder Cancer AJCC v8, Stage IIIA Bladder Cancer AJCC v8
Promoting Physical Activity in Older Hispanic/Latino(a) Adults
Recruiting
In this randomized controlled trial, study staff will randomize 130 Hispanic/Latino adults without dementia and over age 55 from Southern California and from Kaiser Permanente Washington (State) to either the culturally adapted De Pie physical activity intervention or an active comparison program focusing on general brain health topics. The purpose of this study is to determine if 12 weeks of the culturally adapted and fully remote De Pie y a Movernos intervention improves self-efficacy, habit s... Read More
Gender:
ALL
Ages:
Between 55 years and 89 years
Trial Updated:
04/01/2025
Locations: University of California San Diego, San Diego, California
Conditions: Sedentary Behavior, Physical Inactivity, Alzheimer Disease, Protection Against
3385 - 3396 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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