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California Paid Clinical Trials
A listing of 5622 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
2377 - 2388 of 5622
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California is currently home to 5622 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
Depressive disorder Clinical Study
Recruiting
A clinical study for people that suffer with Depressive disorder
Conditions:
Depressive disorder
RECLAIM STUDY: A Phase 2 Evaluating the Efficacy and Safety of Pemvidutide in the Treatment of Alcohol Use Disorder (AUD) in Subjects With Obesity or Overweight
Recruiting
This is a Phase 2, multicenter, randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of pemvidutide in the treatment of AUD in subjects with obesity or overweight. After signing the informed consent form, subjects will be screened and if eligible randomized 1:1 to 1 of the following 2 treatment arms:
* Pemvidutide: 2.4 mg SC once weekly
* Placebo: Placebo SC once weekly
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
06/10/2025
Locations: Altimmune Clinical Study Site, Los Angeles, California
Conditions: Alcohol Use Disorder (AUD)
Evaluate Efficacy and Safety of PA5108 Ocular Implants in Primary Open Angle Glaucoma or Ocular Hypertension
Recruiting
The goal of this clinical trial is to determine the dose of PA5108 Ocular Implant that is effective and safe for the reduction of intraocular pressure in adult patients with open-angle glaucoma or ocular hypertension, compared to the standard treatment therapy.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/10/2025
Locations: Eye Research Foundation, Newport Beach, California
Conditions: Glaucoma, Open-Angle, Ocular Hypertension
Empathy Through Pain Control: Lidocaine Paracervical Block for IUD Placements
Recruiting
The goal of this research study is to learn more about how different uses of a numbing medication might affect pain levels while getting an IUD placed. The investigators are also studying participants opinions of their clinicians' empathy.
The investigators are inviting patients who arrive at their clinic visit seeking an IUD.
Usually, at University of California, San Diego (UCSD), for patients who have never delivered a baby, clinicians use a buffered paracervical block for before IUD placeme... Read More
Gender:
FEMALE
Ages:
Between 18 years and 50 years
Trial Updated:
06/10/2025
Locations: University of California, San Diego, La Jolla, California
Conditions: Contraception, Pain, Acute, Anesthesia, Local
Omnipod® SmartAdjust 2.0 System Compared to the Omnipod® 5 System in Individuals With Type 1 or Type 2 Diabetes
Recruiting
The goal of this multi-center, randomized, cross-over study is to evaluate the safety and effectiveness of the Omnipod 5 SmartAdjust 2.0 System in individuals with type 1 or type 2 diabetes.
Study participants will complete about 5 in-person visits and be expected to treat their diabetes per their usual routine using the system at the lowest available target setting.
Each participant will begin the study using either the Omnipod 5 SmartAdjust 2.0 System or the Omnipod 5 System for 4 weeks (Per... Read More
Gender:
ALL
Ages:
Between 2 years and 70 years
Trial Updated:
06/10/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Diabetes Mellitus, Type 1, Type 2
Study of the Safety of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age
Recruiting
This study is a Phase 3, randomized, modified double-blind study which aims to document the safety profile of the PCV21 vaccine (investigational pneumococcal vaccine) compared to a licensed 20-valent pneumococcal conjugate vaccine in infants aged from approximately 2 months (42 to 89 days).
The study duration per participant will be up to approximately 19 months. The study vaccines (either PCV21 or 20vPCV) will be administered at approximately 2, 4, 6 and 12 to 15 months of age. Routine pediatr... Read More
Gender:
ALL
Ages:
Between 42 days and 89 days
Trial Updated:
06/10/2025
Locations: Helping Hands Healthcare Group-Fullerton- Site Number : 8400063, Fullerton, California
Conditions: Pneumococcal Immunization
Clinical Trial to Evaluate the Safety and Immunogenicity of a Priming Regimen of 426c.Mod.Core-C4b Followed by HxB2.WT.Core-C4b Boosts, Both Adjuvanted With 3M-052 AF + Alum, in Adult Participants Without HIV and in Overall Good Health
Recruiting
This is a partially randomized, open-label phase 1 study to evaluate the safety and immunogenicity of a priming regimen of 426c.Mod.Core-C4b adjuvanted with 3M-052 AF + Alum followed by boosts with HxB2.WT.Core-C4b adjuvanted with 3M-052 AF + Alum.
The primary hypothesis is that the boosting with HxB2.WT.Core-C4b adjuvanted with 3M-052 AF + Alum will further mature broadly neutralizing antibody (bnAb)-precursor B-cell lineages elicited by 426c.Mod.Core-C4b adjuvanted with 3M-052 AF + Alum.
426... Read More
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
06/10/2025
Locations: Bridge HIV, San Francisco Department of Public Health, San Francisco, California
Conditions: HIV
POMEGRANATE Trial: Comparing Reia Pessary Versus Standard of Care Pessary for Pelvic Organ Prolapse Treatment
Recruiting
This multi-centered, randomized controlled trial will evaluate the safety and efficacy of home use of the novel Reia System (RS), which includes the Reia pessary and applicator, compared to standard pessary care (Gellhorn or ring with/without support without knob) among women with stage II-IV pelvic organ prolapse (POP). A total of 182 participants will be recruited among pessary naïve patients who are symptomatic and choose a vaginal pessary for management of their POP from study sites speciali... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
06/10/2025
Locations: Stanford University, Palo Alto, California
Conditions: Pelvic Organ Prolapse, Prolapse
A Clinic-wide Intervention (Primary Care-GI Connect) for Improving Rates of Colonoscopy After Abnormal Fecal Immunochemical Test Result in Patients at Federally Qualified Health Centers
Recruiting
This clinical trial evaluates a clinic-wide intervention called Primary Care-Gastrointestinal (GI) Connect for improving follow-up colonoscopy rates in patients at a Federally Qualified Health Center (FQHC) who have an abnormal fecal immunochemical test (FIT) result. Colorectal cancer screening reduces colorectal cancer incidence and mortality but is underutilized.The most accessible, feasible, and common colorectal cancer screening modality for average-risk individuals in low resource settings... Read More
Gender:
ALL
Ages:
All
Trial Updated:
06/10/2025
Locations: University of California at Los Angeles, Los Angeles, California
Conditions: Colorectal Carcinoma
Implementation and Interaction of Clinician And Patient-facing Tools Aiming to Intensify Neurohormonal Medicines for Heart Failure
Recruiting
An increasing number of guideline-directed medical therapies (GDMT) have been developed for patients with chronic heart failure with reduced ejection fraction (HFrEF). When used in combination at recommended doses, patients often experience significant improvements in cardiac function, quality of life, and survival.1,2 However, GDMT underuse occurs for the vast majority of patients with HFrEF. Two recent trials demonstrated improved GDMT prescribing during a clinic visit, each using automated de... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/10/2025
Locations: Sutter Health, Walnut Creek, California
Conditions: Heart Failure With Reduced Ejection Fraction
Study to Evaluate Safety of RTx-015 Injection in Retinitis Pigmentosa or Choroideremia Patients (ENVISION)
Recruiting
A Phase 1, open-label, non-randomized, dose-escalation study, where approximately 18 eligible patients with retinitis pigmentosa or choroideremia will be enrolled sequentially in up to 4 dose cohorts of RTx-015. Enrolled patients will receive a single, unilateral intravitreal injection of RTx-015 in the study eye at Visit 3 (Day 0) and be followed for a total of 5 years.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/10/2025
Locations: Retina Vitreous Associates Medical Group, Beverly Hills, California
Conditions: Retinitis Pigmentosa, Choroideremia
Pembrolizumab Plus CA-4948 for the Treatment of Patients With Progressive Metastatic Urothelial Cancer Despite Prior Immunotherapy
Recruiting
This phase I trial tests the safety, side effects, best dose, and effectiveness of emavusertib (CA-4948) in combination with pembrolizumab in treating patients with urothelial cancer that has spread from where it first started to other places in the body (metastatic) and that has a resistance to PD-1/PD-L1 immune checkpoint inhibitors. CA-4948, a kinase inhibitor, may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Immunotherapy with monoclonal antibodies,... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/10/2025
Locations: City of Hope Comprehensive Cancer Center, Duarte, California
Conditions: Metastatic Urothelial Carcinoma, Unresectable Urothelial Carcinoma
Comprehensive HHT Outcomes Registry of the United States (CHORUS)
Recruiting
The Comprehensive HHT Outcomes Registry of the United States (CHORUS) is an observational registry of patients diagnosed with Hereditary Hemorrhagic Telangiectasia (HHT). The purpose of this study is to better understand HHT, the symptoms and complications it causes, and the impact the disease has on people's lives. The investigators will collect long-term information about the participant, allowing us to understand how the disease changes over time, and what factors can influence those changes.... Read More
Gender:
ALL
Ages:
All
Trial Updated:
06/10/2025
Locations: University of California, Los Angeles, Los Angeles, California
Conditions: Hereditary Hemorrhagic Telangiectasia, Arteriovenous Malformations, Telangiectasia, Epistaxis, GastroIntestinal Bleeding, Cerebral Arteriovenous Malformations, Vascular Malformation
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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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