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                    COVID19 Paid Clinical Trials in California
A listing of 47  COVID19  clinical trials  in California  actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
            1 - 12 of 47
        
                The state of California currently has 47 active clinical trials seeking participants for COVID19 research studies. These trials are conducted in various cities, including Los Angeles, San Francisco, San Diego and Sacramento. 
            
                                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 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.
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    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
                
                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)
                    
                                    Featured Trial
                
                Ischemic heart disease (IHD) Clinical Study
            
        Recruiting
            
        A clinical study for people that suffer with Ischemic heart disease (IHD)
    
    
                            Conditions: 
                                    
        
            
                        Ischemic heart disease (IHD)
                    
                                    Featured Trial
                
                Cardiovascular Disease Clinical Study
            
        Recruiting
            
        A clinical study for people that suffer with Cardiovascular Disease
    
    
                            Conditions: 
                                    
        
            
                        Cardiovascular Disease
                    
                                    
                
                                    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  +16 locations         
        
        
            Conditions: COVID-19
        
            
        
    
                
                                    Outpatient Treatment With Anti-Coronavirus Immunoglobulin
                                
            
            
        Recruiting
                            
            
                The primary objective of the Outpatient Treatment with Anti-Coronavirus Immunoglobulin (OTAC) (INSIGHT 012) trial is to compare the safety and efficacy of a single infusion of anti-COVID-19 hyperimmune intravenous immunoglobulin (hIVIG) versus placebo among adults with recently diagnosed severe acute respiratory syndrome - coronavirus 2 (SARS-CoV2) infection who do not require hospitalization. The primary endpoint of this double-blind randomized trial is a five-category ordinal outcome that asse...  Read More             
        
        
    Gender:
                ALL
            Ages:
                18 years and above
            Trial Updated:
                08/18/2025
            
            Locations: VA Northern California Health Care System (074-023), Mather, California  +2 locations         
        
        
            Conditions: COVID, SARS-CoV2 Infection, Covid19
        
            
        
    
                
                                    RECOVER-SLEEP: Platform Protocol
                                
            
            
        Recruiting
                            
            
                The platform protocol is designed to be flexible so that it is suitable for a range of study settings and intervention types. Therefore, the platform protocol provides a general protocol structure that can be shared by multiple interventions and allows comparative analysis across the interventions. For example, objectives, measures, and endpoints are generalized in the platform protocol, but intervention-specific features are detailed in separate appendices.
This platform protocol is a prospect...  Read More             
        
        
    Gender:
                ALL
            Ages:
                18 years and above
            Trial Updated:
                08/16/2025
            
            Locations: Stanford University, Palo Alto, California  +1 locations         
        
        
            Conditions: Long COVID, Long COVID-19, Hypersomnia, Sleep Disturbance
        
            
        
    
                
                                    RECOVER-ENERGIZE Platform Protocol
                                
            
            
        Recruiting
                            
            
                This is a platform protocol designed to be flexible so that it is suitable for a range of interventions and settings within diverse health care systems and community settings with incorporation into clinical COVID-19 management programs and treatment plans if results achieve key study outcomes.
This protocol is a prospective, multi-center, multi-arm, randomized, controlled platform trial evaluating interventions to address and improve exercise intolerance and post-exertional malaise (PEM) as ma...  Read More             
        
        
    Gender:
                ALL
            Ages:
                18 years and above
            Trial Updated:
                08/16/2025
            
            Locations: Stanford University, Stanford, California  +1 locations         
        
        
            Conditions: Long COVID, Long Covid19, Long Covid-19
        
            
        
    
                
                                    A Study to Learn About a Study Medicine Called Ibuzatrelvir in Adult and Adolescent Patients With COVID-19 Who Are Not Hospitalized But Are at Risk For Severe Disease
                                
            
            
        Recruiting
                            
            
                The purpose of the study is to evaluate whether ibuzatrelvir is effective and safe in adults and adolescents with COVID-19 who do not need to be in the hospital but who are at high risk for progression to severe disease. Eligible participants will be randomly assigned (by chance) to receive ibuzatrelvir or matching placebo orally for 5 days. Co-administration of locally available standard of care is allowed. The total duration of the study is around 6 months.             
        
        
    Gender:
                ALL
            Ages:
                12 years and above
            Trial Updated:
                08/13/2025
            
            Locations: National Institute of Clinical Research - Bakersfield, Bakersfield, California  +10 locations         
        
        
            Conditions: COVID-19 SARS-CoV-2 Infection
        
            
        
    
                
                                    A Phase 1/2A, Randomized Study of a T Follicular Helper (TFH)-Targeting Genetic Vaccine Strategy Designed to Induce Broad, Durable Immune Responses
                                
            
            
        Recruiting
                            
            
                The goal of this clinical trial is to test two investigational COVID-19 booster vaccines, called CoTend-s3BXBB and CoTend-BXBB, in healthy volunteers ages 40-64. The CoTend-s3BXBB vaccine includes a component called "s3", which was designed to improve the body's response to the vaccine. CoTend-BXBB is the same vaccine without s3.
The main questions the study aims to answer are: 1) Is the investigational vaccine safe? 2) Does "s3" lead to bigger, broader, and longer-lasting responses to the vacc...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 40 years and 64 years
            Trial Updated:
                08/13/2025
            
            Locations: UCLA Westwood, Los Angeles, California  +1 locations         
        
        
            Conditions: COVID-19
        
            
        
    
                
                                    A Study to Examine Anktiva for the Treatment of COVID-19.
                                
            
            
        Recruiting
                            
            
                This study will examine the safety and effectiveness of Anktiva in treating patients with Long COVID-19 which is defined as persistent symptoms of a COVID-19 infection that remain after the infection is over.             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 70 years
            Trial Updated:
                08/13/2025
            
            Locations: Chan Soon-Schiong Institute for Medicine (CSSIFM), El Segundo, California         
        
        
            Conditions: Long COVID, Long COVID Syndrome, Long Covid 19
        
            
        
    
                
                                    A Clinical Study of Molnupiravir to Prevent Severe Illness From Coronavirus Disease 2019 (COVID-19) in People Who Are High Risk (MK-4482-023)
                                
            
            
        Recruiting
                            
            
                Researchers are looking for other ways to prevent severe illness from COVID-19. COVID-19 is a virus that most often causes mild flu or cold-like symptoms. However, people with certain health conditions or other factors have a high risk (chance) of getting severely ill from COVID-19, which can require a hospital stay or lead to death. Some people who are high risk for severe illness may be unable to take certain treatments for COVID-19 because they are not available to them, or they take other me...  Read More             
        
        
    Gender:
                ALL
            Ages:
                18 years and above
            Trial Updated:
                08/12/2025
            
            Locations: Clinica de Salud del Valle de Salinas ( Site 3825), Castroville, California  +7 locations         
        
        
            Conditions: Coronavirus Disease (COVID-19)
        
            
        
    
                
                                    A Study to Learn About the Study Medicine Ibuzatrelvir in Adults With COVID-19 Who Are Severely Immunocompromised
                                
            
            
        Recruiting
                            
            
                This is a Phase 3, randomized, actively controlled, double-blinded, double-dummy, superiority study to evaluate the efficacy and safety of ibuzatrelvir alone and in combination with remdesivir IV compared to remdesivir IV alone for the treatment of symptomatic COVID-19 in severely immunocompromised adult participants who are non-hospitalized or are hospitalized for observation but do not require supplemental oxygen for COVID-19.             
        
        
    Gender:
                ALL
            Ages:
                18 years and above
            Trial Updated:
                08/07/2025
            
            Locations: Hope Clinical Research, Inc., Canoga Park, California  +1 locations         
        
        
            Conditions: COVID-19 Infection
        
            
        
    
                
                                    NE3107 in Adults With Neurological Symptoms of Long COVID
                                
            
            
        Recruiting
                            
            
                Long COVID is a condition where debilitating symptoms can persist for months after a COVID-19 infection. This study aims to evaluate the effects of NE3107 on several neurological symptoms reported in people with Long COVID including difficulty concentrating or remembering things ("brain fog") and fatigue.
Researchers will compare NE3107 to a placebo (a look-alike substance that contains no drug) to see if NE3107 works to treat neurocognitive and fatigue symptoms of long COVID.
Participants wil...  Read More             
        
        
    Gender:
                ALL
            Ages:
                Between 18 years and 64 years
            Trial Updated:
                08/01/2025
            
            Locations: Clinical Trial Site, San Francisco, California         
        
        
            Conditions: Long COVID
        
            
        
    
                
                                    A Pilot rTMS Trial for Neuropsychiatric Symptoms of Long-COVID
                                
            
            
        Recruiting
                            
            
                This is a pilot randomized trial of rTMS for symptoms of fatigue and brain fog, and other neuropsychiatric symptoms of Long-COVID (Post-COVID, post-acute sequelae of COVID-19 infection, PASC). Twenty participants diagnosed with Long-COVID and recruited from the UCLA Long-COVID clinic will be randomized to receive active rTMS versus sham stimulation for 15 treatments followed by another 15 open-label rTMS treatments. Investigators will compare the safety and tolerability of rTMS vs Sham and exami...  Read More             
        
        
    Gender:
                ALL
            Ages:
                18 years and above
            Trial Updated:
                07/31/2025
            
            Locations: UCLA Semel Institute, Los Angeles, California         
        
        
            Conditions: Long Covid-19, PASC Post Acute Sequelae of COVID 19, Brain Fog, Fatigue
        
            
        
    
                
                                    A Study to Learn About COVID-19 RNA-Based Variant-Adapted Vaccine Candidate(s) Against SARS-CoV-2 in Adults, Including Those at Higher Risk of Severe COVID-19
                                
            
            
        Recruiting
                            
            
                The purpose of this study is to learn about the safety, tolerability, and immunogenicity of an updated vaccine against COVID-19.
This study is seeking participants 18 through 64 years of age who are considered to be at higher risk for severe COVID-19 disease per study protocol and those 65 years of age and older. All participants in this study will receive 1 shot to their arm of a BNT162b2 (Omi LP.8.1) 30 µg RNA-based vaccine which targets a circulating variant of SARS-CoV-2 and is selected for...  Read More             
        
        
    Gender:
                ALL
            Ages:
                18 years and above
            Trial Updated:
                07/30/2025
            
            Locations: Diablo Clinical Research, Inc., Walnut Creek, California         
        
        
            Conditions: COVID-19, SARS-COV-2 Infection
        
            
        
    1 - 12 of 47
            