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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.
2929 - 2940 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
Parent Intervention for Psychiatrically-Hospitalized Youth
Recruiting
The purpose of the present study is to conduct a pilot randomized clinical trial (RCT) of a parent coaching intervention for parents of youth hospitalized for suicidal ideation, suicide attempt(s), or non-suicidal self-injury. Parents will receive either the parent coaching intervention (which includes safety planning and behavioral parenting skills training with a clinician and assistance with linkage to follow-up care by a case manager) or treatment as usual (TAU) for the inpatient unit. The l... Read More
Gender:
ALL
Ages:
Between 12 years and 85 years
Trial Updated:
05/13/2025
Locations: Michele Berk, Stanford, California
Conditions: Adolescent - Emotional Problem, Suicide and Self-harm, Parenting
Systems Biology of Early Atopy
Recruiting
The goal of this study is to establish a birth cohort that collects prenatal and early life biosamples and environmental samples and rigorously phenotypes young children for food allergy and Atopic Dermatitis (AD) to identify prenatal and early life markers of high risk for food allergy and AD, as well as biological pathways (endotypes) that result in these conditions.
Primary Objectives:
* To study the role and interrelationships of established and novel clinical, environmental, biological, a... Read More
Gender:
ALL
Ages:
0 years and above
Trial Updated:
05/13/2025
Locations: Sean N. Parker Center for Allergy & Asthma Research at Stanford University, Stanford, California
Conditions: Allergic Diseases, Food Allergy, Atopic Dermatitis
ADCT-602 in Treating Patients With Recurrent or Refractory B-cell Acute Lymphoblastic Leukemia
Recruiting
This phase I/II trial studies the side effects and best dose of ADCT-602 in treating patients with B-cell lymphoblastic leukemia that has come back or does not respond to treatment. Monoclonal antibodies, such as ADCT-602, may interfere with the ability of tumor cells to grow and spread.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/13/2025
Locations: City of Hope Comprehensive Cancer, Monrovia, California
Conditions: Blasts 5 Percent or More of Bone Marrow Nucleated Cells, CD22 Positive, Philadelphia Chromosome Positive, Recurrent B Acute Lymphoblastic Leukemia, Refractory B Acute Lymphoblastic Leukemia
Metabolic Responses to Bariatric Surgery
Recruiting
Research the genetic and biomechanical markers of human adipose tissue on patients with morbid obesity. Additional tissue/fluid collection is also gathered during the time of surgery.
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
05/13/2025
Locations: University of California Davis Medical Center, Sacramento, California
Conditions: Morbid Obesity
A Study to Assess the Safety and Tolerability, and Pharmacokinetics of UCB0022 in Healthy Caucasian, Japanese, and Chinese Participants
Recruiting
The primary purpose of this study is to assess the safety and tolerability of oral glovadalen (UCB0022) in healthy Caucasian, Japanese, and Chinese participants.
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
05/12/2025
Locations: Up0135 1001, Glendale, California
Conditions: Healthy Study Participants
Enhanced Pain Coping in Cancer (EPIC): A Study of Managing Treatment-Related Joint Pain in Breast Cancer Survivors
Recruiting
The researchers are doing this study to compare two different types of group therapy and find out whether they are effective approaches for helping breast cancer survivors manage joint pain caused by aromatase inhibitors (AI). This type of joint pain is called AI-associated arthralgia, or AIA, and it is common in people taking AIs. AIA and its associated symptoms can make some people decide to stop taking their medication. The study will look at the effects of two different types of group therap... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
05/12/2025
Locations: University of California San Diego (Data collection and Data analysis), San Diego, California
Conditions: Breast Cancer Survivor
Characterizing the EEG Signature of Fentanyl and Its Association With Drug Liking
Recruiting
The goal of this study is to characterize an electroencephalogram (EEG) biomarker for fentanyl and understand where this signal is coming from in the brain. The investigators also aim to understand how this EEG biomarker is connected to patient perception to drug liking.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/12/2025
Locations: Stanford Hospital, Palo Alto, California
Conditions: Brain Activity Related to Opioid Administration, Brain Activity Related to Drug Liking
Inflammatory Challenge and Fear
Recruiting
The goal of this study is to learn if short-term changes in the immune system alter how we process information and experience fear. The main questions it aims to answer are:
Do people who receive typhoid vaccine respond differently than those who receive a placebo saline vaccine? Do people who receive typhoid vaccine experience changes in how they think and feel?
Participants will:
Attend four appointments at the San Francisco VA Health Care System;
Receive typhoid vaccine or placebo at one... Read More
Gender:
ALL
Ages:
Between 25 years and 45 years
Trial Updated:
05/12/2025
Locations: San Francisco VA Health Care System, San Francisco, California
Conditions: Posttraumatic Stress Disorder (PTSD)
Phase 2 Open Label Randomized Study of Pirtobrutinib and Brexucabtagene Autoleucel in R/R MCL
Recruiting
This is a phase 2, open-label, randomized, multicenter clinical trial in patients with relapsed/refractory mantle cell lymphoma (R/R MCL) who meet the criteria for standard-of-care FDA label for CD19 CAR T-cell therapy with brexucabtagene autoleucel (brexu-cel).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/12/2025
Locations: Stanford Cancer Center, Stanford, California
Conditions: Mantle Cell Lymphoma
Pilot RCT Evaluating Clinical Outcomes of Using Undermyfork Mobile App With Dexcom G7
Recruiting
This study aims to determine if adding using a mobile diabetes-related health application with CGM device yields significant benefits, contributing to our understanding of the potential advantages and informing future diabetes care practices. The rationale for testing CGM with Undermyfork in individuals with T2D stems from the potential benefits of real-time glucose monitoring and personalized dietary tracking in improving glycemic control and reducing diabetes-related complications. Unlike stan... Read More
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
05/12/2025
Locations: Scripps Whittier Diabetes Institute, La Jolla, California
Conditions: Type 2 Diabetes
Prescreening Study to Identify Potential Stargardt Participants for ACDN-01 Clinical Trials
Recruiting
This is an observational prescreening study. Individuals who are eligible for prescreening will undergo testing procedures that may be used to determine eligibility in ACDN-01 clinical trials.
Gender:
ALL
Ages:
5 years and above
Trial Updated:
05/12/2025
Locations: University of San Francisco, San Francisco, California
Conditions: Stargardt Disease, Stargardt Disease 1, Cone Rod Dystrophy, Juvenile Macular Degeneration
Treatment to Lift Facial Lax Skin and Improve Facial Wrinkles Using Precise and Lift Applicators
Recruiting
Open-label, non-randomized single-arm prospective, multi-center, self-controlled clinical study with masked evaluation.
Gender:
ALL
Ages:
Between 35 years and 80 years
Trial Updated:
05/12/2025
Locations: Costal Skin & Eye Institute, La Mesa, California
Conditions: Lax Skin
2929 - 2940 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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