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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.
289 - 300 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
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 $50 off your first program with code policy-lab-50.
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 $50 off your first program with code policy-lab-50.
Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Featured Trial
Chronic Cough Study
Recruiting
Are you tired of living with chronic cough? The ASPIRE 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.
Conditions:
Chronic Cough
Refractory or Unexplained Chronic Cough
Cough
Asthma
Allergic Asthma
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
ACP-204 in Adults With Alzheimer's Disease Psychosis
Recruiting
This is a master protocol for 3 independent, seamlessly enrolling, multicenter, randomized, double-blind, placebo-controlled, parallel-group studies in patients with ADP
* Substudy 1 (Phase 2) will evaluate efficacy and dose response of ACP-204 30 and 60 mg vs placebo. This substudy will be initiated first.
* Substudies 2A and 2B (both: Phase 3) will be confirmatory studies of either both doses (ACP-204 30 and 60 mg, respectively) or a single dose from Part 1 vs placebo. Substudies 2A and 2B wi... Read More
Gender:
ALL
Ages:
Between 55 years and 95 years
Trial Updated:
08/18/2025
Locations: Advanced Research Center, Inc., Anaheim, California
Conditions: Alzheimer's Disease Psychosis
IRI-EXPLORE: A Study to Test Whether BI 765845 Helps People Who Have Had a Heart Attack
Recruiting
This study is open to adults aged 18 and over who have just had a heart attack. The purpose of this study is to find out whether a medicine called BI 765845 helps people who have had a heart attack. The investigators also want to test how well different doses of BI 765845 work and how they are tolerated by people who have had a heart attack.
Participants are randomly assigned to receive either BI 765845 or placebo. Placebo treatments look like BI 765845 treatments but do not contain any medicin... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: Flourish Research - Los Angeles (Covina) Clinical Research, Covina, California
Conditions: Myocardial Infarction
Real-World Study of ABBV-951 Subcutaneous Infusion to Assess Change in Disease Activity in Adult Participants With Parkinson's Disease
Recruiting
Parkinson's disease (PD) is a neurological condition, which affects the brain. PD gets worse over time, but how quickly it progresses varies a lot from person to person. Some symptoms of PD are tremors, stiffness, and slowness of movement. The purpose of this study is to evaluate how effective ABBV-951 is in treating adult participants with advanced PD in real world setting.
ABBV-951 (foslevodopa/foscarbidopa) is an approved drug for the treatment of Parkinson's Disease. The main ROSSINI study... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: Parkinson's Research Centers of America - Palo Alto /ID# 264703, Palo Alto, California
Conditions: Parkinson's Disease (PD)
Treatment of Newly Diagnosed Rhabdomyosarcoma Using Molecular Risk Stratification and Liposomal Irinotecan Based Therapy in Children With Intermediate and High Risk Disease
Recruiting
This is a phase II study to determine safety and efficacy of combining liposomal irinotecan with vincristine alternating with VAC in intermediate-risk patients, liposomal irinotecan with temozolomide and vincristine alternating with VAC in high-risk patients and the chemotherapy combinations when given with concomitant radiation therapy in intermediate and high risk patients.
Primary Objective
* Estimate event-free survival for intermediate-risk participants treated with VAC and vincristine an... Read More
Gender:
ALL
Ages:
22 years and below
Trial Updated:
08/18/2025
Locations: Stanford University, Palo Alto, California
Conditions: Rhabdomyosarcoma
IDE196 (Darovasertib) in Combination With Crizotinib as First-line Therapy in Metastatic Uveal Melanoma
Recruiting
This is a Phase 2/3, multi-arm, multi-stage, open-label study of human leukocyte antigen (HLA)-A\*02:01 negative participants with metastatic uveal melanoma (MUM) who will be randomized to receive either IDE196 + crizotinib or investigator's choice of treatment (pembrolizumab, ipilimumab + nivolumab, or dacarbazine).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: Moores Cancer Center, La Jolla, California
Conditions: Metastatic Uveal Melanoma
A Study of the Efficacy and Safety of Adjuvant Autogene Cevumeran Plus Atezolizumab and mFOLFIRINOX Versus mFOLFIRINOX Alone in Participants With Resected PDAC
Recruiting
The purpose of this study is to evaluate the efficacy and safety of adjuvant autogene cevumeran plus atezolizumab and modified leucovorin, 5-fluorouracil (5-FU), irinotecan, and oxaliplatin (mFOLFIRINOX) versus mFOLFIRINOX alone in participants with resected pancreatic ductal adenocarcinoma (PDAC) who have not received prior systemic anti-cancer treatment for PDAC and have no evidence of disease after surgery.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: USC Norris Comprehensive Cancer Center, Los Angeles, California
Conditions: Adenocarcinoma, Pancreatic Ductal
ELEMENT-MDS: A Study to Compare the Efficacy and Safety of Luspatercept in Participants With Myelodysplastic Syndrome (MDS) and Anemia Not Receiving Blood Transfusions
Recruiting
The purpose of the study is to compare the efficacy and safety of Luspatercept vs epoetin alfa in the treatment of anemia in adults due to IPSS-R very low, low, intermediate-risk MDS in ESA-naïve participants who are non-transfusion dependent (NTD).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: Community Cancer Institute, Clovis, California
Conditions: Myelodysplastic Syndromes
Strategy for Improving Stroke Treatment Response
Recruiting
SISTER is a Phase-II, prospective, randomized, placebo-controlled, blinded, dose finding trial that aims to determine the safety and preliminary efficacy of TS23, a monoclonal antibody against the alpha-2 antiplasmin (a2-AP), in acute ischemic stroke.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: UCSD Health La Jolla, La Jolla, California
Conditions: Ischemic Stroke
Tafasitamab and Zanubrutinib for the Treatment of Patients With Newly Diagnosed Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma, TaZA CLL Study
Recruiting
This phase II trial tests how well tafasitamab and zanubrutinib works in treating patients with newly diagnosed chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL). Tafasitamab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. Zanubrutinib is in a class of medications called kinase inhibitors. It works by blocking the action of a protein that signals cancer cells to multiply. This may stop the growth and spread of cancer cells. Givin... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma
A Study to Evaluate Effectiveness and Safety of Deucravacitinib (BMS-986165) Compared With Placebo in Participants With Active Systemic Lupus Erythematosus
Recruiting
The purpose of this study is to evaluate the effectiveness and safety of deucravacitinib compared with placebo in an active moderate to severe Systemic Lupus Erythematosus (SLE) population.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/18/2025
Locations: UCSD - Altman Clinical and Translational Research Institute (ACTRI), La Jolla, California
Conditions: Systemic Lupus Erythematosus
Strategies and Treatments for Respiratory Infections & Viral Emergencies (STRIVE): Shionogi Protease Inhibitor (Ensitrelvir)
Recruiting
Treatments are needed to improve outcomes among patients hospitalized for COVID-19, including direct-acting antiviral (DAA) agents to mitigate the pathology driven by ongoing viral replication. This trial will evaluate S-217622 (ensitrelvir), an anti-SARS-CoV2 3C-like protease inhibitor (PI) developed by Shionogi \&; Co. Ltd.
The study design is a randomized, placebo-controlled, multi-center international clinical trial that will evaluate the clinical efficacy of ensitrelvir when given in addit... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: UCSF Fresno (Site 203-005), Fresno, California
Conditions: COVID-19
A Study of Tebapivat (AG-946) in Participants With Anemia Due to Lower-Risk Myelodysplastic Syndromes (LR-MDS)
Recruiting
This purpose of this study is to establish proof of concept of tebapivat in participants with LR-MDS in Phase 2a and to evaluate the effect of tebapivat on transfusion independence (TI) in participants with LR-MDS in phase 2b.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: Innovative Clinical Research Institute Whittier, Lakewood, California
Conditions: Myelodysplastic Syndromes
289 - 300 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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