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California Paid Clinical Trials
A listing of 5614 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
1333 - 1344 of 5614
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California is currently home to 5614 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
A Study to Assess Efficacy, Safety, Tolerability, Pharmacokinetics (PK) and Pharmacodynamics (PD) of RO7204239 in Combination With Tirzepatide in Participants With Obesity or Overweight With At Least One Weight-related Comorbidity
Recruiting
The main aim of the study is to assess the effect of RO7204239 in combination with tirzepatide, compared to placebo in combination with tirzepatide, on body weight loss after 48 weeks of treatment in adults with obesity or overweight with at least one weight-related comorbidity, but without diabetes mellitus (DM). The study comprises of a 4-week screening period; a 48-week core treatment period, where all participants will receive tirzepatide as background treatment and will be randomized to one... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: Encompass Clinical Research, Spring Valley, California
Conditions: Obesity, Overweight, Overweight With One Weight Related Comorbidity
A Study Evaluating the Efficacy and Safety of ALG-000184 Compared With Tenofovir Disoproxil Fumarate in Untreated HBeAg-Positive and HBeAg- Negative Adult Subjects With Chronic Hepatitis B (B-SUPREME)
Recruiting
This is a Phase 2 study to evaluate efficacy and safety of 48 weeks of oral once daily monotherapy with ALG-000184 versus tenofovir disproxil fumarate (TDF) for chronic HBV infection.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
07/25/2025
Locations: Aligos Investigational Site, Coronado, California
Conditions: Chronic Hepatitis B Infection
A Study to Evaluate Two Dosing Regimens of Subcutaneous Nivolumab in Combination With Intravenous Ipilimumab and Chemotherapy in Participants With Previously Untreated Metastatic or Recurrent Non-Small Cell Lung Cancer (NSCLC)
Recruiting
The purpose of this study is to evaluate two dosing regimens of subcutaneous Nivolumab in combination with intravenous Ipilimumab and chemotherapy in participants with previously untreated metastatic or recurrent Non-Small Cell Lung Cancer (NSCLC)
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: Local Institution - 0062, Los Angeles, California
Conditions: Non-Small Cell Lung Cancer
A Study to Test Whether Vicadrostat (BI 690517) in Combination With Empagliflozin Helps People With Heart Failure and a Weak Pumping Function of the Left Side of the Heart
Recruiting
This study is open to adults with chronic heart failure (HF) who have a reduced left ventricular ejection fraction (LVEF) of less than 40%. People can join the study if they have been diagnosed with chronic HF at least 3 months before the study. The purpose of this study is to find out whether a medicine called vicadrostat, in combination with another medicine called empagliflozin, helps people with chronic heart failure.
In this study, participants are put into 2 groups randomly. Participants... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: Valley Clinical Trials, Inc., Covina, California
Conditions: Heart Failure
Clinical Course Of Disease In Participants With FA-CM
Recruiting
Characteristics and clinical course of disease In participants with cardiomyopathy associated with Friedreich Ataxia (CLARITY-FA)
Gender:
ALL
Ages:
6 years and above
Trial Updated:
07/25/2025
Locations: University of California San Diego, La Jolla, California
Conditions: Friedreich Ataxia, Cardiomyopathy
A Phase 1 Study of IM-1021 in Participants With Advanced Cancer
Recruiting
IM-1021-101 is a Phase 1 study to determine the safety and effectiveness of IM-1021 in treating participants with advanced cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: City Of Hope, Duarte, California
Conditions: Solid Malignancies, Hematologic Malignancies
A Study to Evaluate INCB186748 in Participants With Advanced or Metastatic Solid Tumors With KRAS G12D Mutation
Recruiting
The purpose of this study is to evaluate INCB186748 in Participants With Advanced or Metastatic Solid Tumors With KRAS G12D Mutation.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: UCLA Healthcare Hematology-Oncology, Santa Monica, California
Conditions: Solid Tumors
Phase 3 Study of PDS0101 and Pembrolizumab in HPV16+ Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma
Recruiting
This is a global, multi-center, Phase 3 study that is randomized 2:1, controlled, and open label to evaluate PDS0101 (Versamune + HPVMix) in combination with pembrolizumab vs. pembrolizumab monotherapy as first-line treatment in patients with unresectable recurrent or metastatic HPV16-positive HNSCC expressing programmed cell death ligand-1 (PD-L1) with combined positive score (CPS) ≥1.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: Marin Cancer Care, Greenbrae, California
Conditions: Recurrent Head and Neck Cancer, Metastatic Head and Neck Cancer, HPV Positive Oropharyngeal Squamous Cell Carcinoma, Neoplasms, Head and Neck, Unresectable Head and Neck Squamous Cell Carcinoma
SUPRAME-ACTengine® IMA203 vs. Investigator's Choice of Treatment in Previously Treated, Unresectable or Metastatic Cutaneous Melanoma
Recruiting
This clinical trial is a prospective, multicenter, open-label, randomized, actively controlled, parallel-group Phase 3 clinical trial to evaluate the efficacy, safety and tolerability of treatment with IMA203 administered at the recommended phase 2 dose versus investigator's choice of treatment in patients with previously treated, unresectable or metastatic cutaneous melanoma.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: City of Hope National Medical Center, Duarte, California
Conditions: Melanoma, Cutaneous Malignant
A Global Phase III Study of Rilvegostomig or Pembrolizumab Plus Chemotherapy for First-Line Treatment of Metastatic Squamous Non-small Cell Lung Cancer (NSCLC)
Recruiting
The purpose of ARTEMIDE-Lung02 is to assess the efficacy and safety of rilvegostomig in combination with platinum-based chemotherapy for the first-line (1L) treatment of patients with metastatic squamous non-small cell lung cancer (mNSCLC) whose tumors express programmed death-ligand 1 (PD-L1).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: Research Site, Beverly Hills, California
Conditions: Non-small Cell Lung Cancer
FORWARD CAD IDE Study
Recruiting
The FORWARD CAD IDE Study is a Prospective, Multicenter, Single-Arm, Investigational Device Exemption (IDE) Study conducted to assess the safety and effectiveness of the Shockwave Intravascular Lithotripsy (IVL) System with the Javelin Coronary IVL Catheter for the treatment of calcified, stenotic de novo coronary artery lesions prior to stenting.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: Scripps Health, La Jolla, California
Conditions: Coronary Arterial Disease (CAD)
A Study of the Efficacy and Safety of Belimumab in Adults With Interstitial Lung Disease Associated With Connective Tissue Disease
Recruiting
Interstitial lung disease (ILD) is a lung condition resulting in inflammation and stiffening of the lung, often associated with connective tissue diseases (CTDs). ILD causes reduction in lung volume, shortness of breath, cough and fatigue therefore has high impact on quality of life and is also the leading cause of death in participants with these conditions. The study will assess whether treatment of CTD-ILD participants with belimumab in addition to standard therapy will result in the stabiliz... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: GSK Investigational Site, Los Angeles, California
Conditions: Lung Diseases, Interstitial
1333 - 1344 of 5614
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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