Search
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.
2173 - 2184 of 5602
Match to Clinical Trials
Access to cutting-edge treatments
Latest clinical trials
Find trials in your area
Search by Name
Filter by Condition
Filter by Location
Filter by Age
Filter by Type
Gender
Type of Study
Clinical Trial Phase
Popular Cities
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
Buy Retatrutide Online Through Celia
Recruiting
Retatrutide (formerly M25) is an investigational peptide being studied for its potential in supporting weight management and metabolic health. It acts on GLP-1, GIP, and glucagon receptors to influence appetite, energy regulation, and fat metabolism.
Conditions:
Healthy
Featured Offer
Lose 20% of Body Weight With GLP-1's
Recruiting
Policy Lab has partnered with OnlineSemaglutide.org to offer trusted access to tirzepatide and other GLP-1 medications, including generic alternatives to Ozempic® and Wegovy®.
Semaglutide and Tirzepatide are advanced GLP-1 medications designed to support weight management and metabolic health. They work by targeting GLP-1 receptors in the body, helping regulate appetite, improve blood sugar control, and support sustainable weight loss (up to 22% of body weight).
Get $50 off your first order using promo code: policy-lab-50
Semaglutide and Tirzepatide are advanced GLP-1 medications designed to support weight management and metabolic health. They work by targeting GLP-1 receptors in the body, helping regulate appetite, improve blood sugar control, and support sustainable weight loss (up to 22% of body weight).
Get $50 off your first order using promo code: policy-lab-50
Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
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
Featured Trial
Stroke Clinical Study
Recruiting
A clinical study for people that suffer with Stroke
Conditions:
Stroke
Tissue Repair Gel in Venous Leg Ulcers (US)
Recruiting
The goal of this clinical trial is to learn if TR987 0.1% gel + Standard of Care works better than Standard of Care alone to treat Venous Leg Ulcers (VLUs). It will also provide additional information about the safety of drug TR987 0.1% gel.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/29/2025
Locations: Clincial Research Site 43C, Castro Valley, California
Conditions: Venous Leg Ulcer, Venous Ulcer, Venous Stasis Ulcer, Venous Stasis, Wound Heal, Wounds, Venous Insufficiency of Leg, Non-healing Wound
ACE2016 in Adult Subjects With Locally Advanced or Metastatic Solid Tumors Expressing Epidermal Growth Factor Receptor (EGFR)
Recruiting
ACE2016 is an off-the-shelf, allogeneic gamma delta T (gdT) cell therapy derived from healthy donors, that is under investigation for the treatment of Locally Advanced or Metastatic Solid Tumors Expressing Epidermal Growth Factor Receptor (EGFR).
The ACE2016-001 study is an open-label, Phase I, first-in-human (FIH) study that aims to evaluate the safety and tolerability, persistency, pharmacodynamics and efficacy of ACE2016 in patients with Locally Advanced or Metastatic Solid Tumors Expressing... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/28/2025
Locations: University of California San Diego, San Diego, California
Conditions: Locally Advanced Solid Tumor, Metastatic Solid Tumor
Evaluate the Efficacy and Safety of NT-0796 in Participants With Obesity With or Without Type 2 Diabetes Mellitus
Recruiting
A Phase 2a Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of NT-0796 as an Adjunct to a Reduced Calorie Diet and Increased Physical Activity in Obese Participants With/Without Type 2 Diabetes over a 6 months treatment period.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
06/27/2025
Locations: Investigative site, Los Angeles, California
Conditions: Obesity and Type 2 Diabetes
Image-guided, Tumor-focused Radiotherapy Treatment in Intermediate and High-risk Prostate Cancer
Recruiting
This is a phase II non-blinded randomized controlled trial of image-guided, tumor-focused radiotherapy in patients with intermediate- or high-risk prostate cancer planning to undergo definitive radiotherapy with or without systemic therapy. The image-guided, tumor-focused radiotherapy will be compared to standard, whole-prostate treatment. The investigators hypothesize that tumor-focused radiotherapy reduces the radiation dose to organs close to the prostate, possibly leading to decreased acute... Read More
Gender:
MALE
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: University of California, San Diego, La Jolla, California
Conditions: Prostate Cancer
Telehealth vs In-Person Evaluation of Addiction Treatment After Visiting the Emergency Department
Recruiting
Main study objective: compare long-term buprenorphine treatment outcomes for patients who start buprenorphine for opioid use disorder (OUD) in the emergency department and are then referred to get outpatient buprenorphine treatment either via telehealth or at an in-person clinic.
Researchers will:
Compare rates of establishing outpatient OUD treatment, how long patients stay on buprenorphine, and patients' experience with care to determine whether patient experiences and outcomes are better fo... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: El Centro Regional Medical Center Emergency Department, El Centro, California
Conditions: Opioid Use Disorder
An Early Feasibility Study Evaluation of an Implant Free Interatrial Shunt to Improve Heart Failure
Recruiting
The purpose of this early feasibility study is to evaluate the safety and feasibility of the device for percutaneous shunting of the interatrial septum and improvement of heart failure related symptoms. The primary goal is to determine if the device is safe to use. The findings from this study may be used to refine the intended patient population, the design of the device, or develop a subsequent randomized study.
Gender:
ALL
Ages:
Between 40 years and 85 years
Trial Updated:
06/27/2025
Locations: Los Robles Health System, Thousand Oaks, California
Conditions: Heart Failure, Heart Failure NYHA Class III, Heart Failure with Reduced Ejection Fraction, Ambulatory Heart Failure, NYHA Class IV
A Phase 2 Study of YA-101 in Patients With Multiple System Atrophy
Recruiting
This is a Phase 2, double-blind, placebo-controlled, multi-center, Phase II, dose escalation study to evaluate the safety, tolerability, pharmacokinetics and efficacy of Ya-101 in subjects with multiple system atrophy.
Gender:
ALL
Ages:
30 years and above
Trial Updated:
06/27/2025
Locations: UCLA Health, Los Angeles, California
Conditions: Multiple System Atrophy
A Study to Evaluate the Safety and Effectiveness of ALKS 2680 in Subjects With Idiopathic Hypersomnia
Recruiting
The purpose of this study is to measure the safety and decrease in daytime sleepiness in subjects with Idiopathic Hypersomnia when taking ALKS 2680 tablets compared with placebo tablets
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
06/27/2025
Locations: Alkermes Investigator Site, Los Angeles, California
Conditions: Idiopathic Hypersomnia
A Research Study to Look Into the Long-term Effect on Weight Loss of CagriSema in People With Obesity
Recruiting
This study will look at how well CagriSema helps people with obesity lose weight compared to a "dummy medicine". CagriSema is a new medicine developed by Novo Nordisk. CagriSema cannot yet be prescribed by doctors. The study has two parts: First part is called the main phase and will last for 2 years, and second part is called the extension phase and will last for 1 year. In the main phase participants will either get CagriSema or "dummy medicine". Which treatment participants get is decided by... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: Valley Clinical Trials, Covina, California
Conditions: Obesity
A Study to Evaluate the Safety and Effectiveness of ALKS 2680 in Subjects With Narcolepsy Type 2
Recruiting
The purpose of this study is to measure the safety and decrease in sleepiness in subjects with narcolepsy type 2 (NT2) when taking ALKS 2680 tablets compared to placebo tablets.
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
06/27/2025
Locations: Alkermes Investigator Site, Los Angeles, California
Conditions: Narcolepsy Type 2
A Safety and Efficacy Study Evaluating CTX131 in Adult Subjects With Relapsed/Refractory Hematologic Malignancies
Recruiting
This is an open label, multicenter, phase 1/2 dose evaluation and cohort expansion study evaluating the safety and efficacy of CTX131 in subjects with Relapsed/Refractory Hematologic Malignancies
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
06/27/2025
Locations: Research Site 5, Stanford, California
Conditions: T Cell Lymphoma, B Cell Lymphoma, Acute Myeloid Leukemia
Study to Evaluate ACDN-01 in ABCA4-related Stargardt Retinopathy (STELLAR)
Recruiting
This study is an open-label, single ascending dose clinical trial in participants who have ABCA4-related retinopathies. This is the first-in-human clinical trial in which ACDN-01 will be evaluated for safety, tolerability, and preliminary efficacy following a single subretinal injection of ACDN-01.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: University of San Francisco, San Francisco, California
Conditions: Stargardt Disease, Cone Rod Dystrophy, Juvenile Macular Degeneration, Stargardt Disease 1
2173 - 2184 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.
Search Clinical Trials in California by Condition
See All Conditions