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California Paid Clinical Trials
A listing of 5611 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
13 - 24 of 5611
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California is currently home to 5611 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
Phase 3 Study of T-DXd and Rilvegostomig Versus SoC in Advanced HER2-expressing Biliary Tract Cancer
Recruiting
The purpose of this study is to measure the efficacy and safety of T-DXd with rilvegostomig or T-DXd monotherapy compared with gemcitabine plus cisplatin and durvalumab in patients with advanced treatment naïve HER2-expressing BTC.
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
08/18/2025
Locations: Research Site, Fullerton, California
Conditions: Biliary Tract Cancer
DECIDE: A Comparative Effectiveness Trial of Metformin Versus Insulin for the Treatment of Gestational Diabetes
Recruiting
This is a non-inferiority patient-centered and pragmatic comparative-effectiveness pregnancy randomized controlled trial (RCT) with postpartum maternal and child follow-up through 2 years of 1,572 individuals with gestational diabetes mellitus (GDM) randomized to oral metformin versus injectable insulin.
This study will determine if metformin is not inferior to insulin in reducing adverse pregnancy outcomes, is comparably safe for exposed individuals and children, and if patient-reported factor... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: Cedars Sinai Medical Center, Los Angeles, California
Conditions: Gestational Diabetes Mellitus, Pregnancy, High Risk
Transmural Healing and Disease-Modifying Effect of Guselkumab in Crohn's Disease Patients
Recruiting
The purpose of this study is to evaluate the efficacy of guselkumab in healing of all layers of the digestive tract (transmural healing) with the help of a score called Magnetic Resonance Index of Activity (MaRIA) based on a scan at Week 48.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: Center for Colitis and Crohns Disease University of California, San Francisco, California
Conditions: Crohn's Disease
A Study to Test the Efficacy and Safety of Riliprubart Against the Usual Treatment of Intravenous Immunoglobulin (IVIg) in People With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)
Recruiting
The purpose of the study is to evaluate efficacy of riliprubart compared to IVIg in adult participants with CIDP who are receiving maintenance treatment with IVIg. The study duration will be for a maximum of 109 weeks including screening, treatment phases, and follow-up.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: Keck School of Medicine of University of Southern California- Site Number : 8400002, Los Angeles, California
Conditions: Chronic Inflammatory Demyelinating Polyneuropathy
A Study Evaluating Efruxifermin in Subjects With Non-Cirrhotic Nonalcoholic Steatohepatitis (NASH)/Metabolic Dysfunction-Associated Steatohepatitis (MASH) and Fibrosis
Recruiting
This is a multi-center evaluation of efruxifermin (EFX) in a randomized, double-blind, placebo-controlled study in subjects with non-cirrhotic NASH/MASH and fibrosis stage 2 or 3 (F2 or F3).
The study will enroll subjects in two cohorts for a total samples size of 1650 subjects.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
08/18/2025
Locations: Akero Clinical Study Site, Chula Vista, California
Conditions: NASH With Fibrosis, MASH With Fibrosis
A First-in-Human (FIH) Study to Evaluate the Safety and Tolerability of VVD-130850 in Participants With Advanced Solid and Hematologic Tumors
Recruiting
A FIH study to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of VVD-130850, as single agent and in combination with checkpoint inhibition, in participants with advanced solid and hematologic tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/18/2025
Locations: California Research Institute, Los Angeles, California
Conditions: Advanced Solid Tumors, Advanced Hematologic Tumors
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
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
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
13 - 24 of 5611
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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