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California Paid Clinical Trials
A listing of 5617 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
2581 - 2592 of 5617
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California is currently home to 5617 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.
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Recruiting
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Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Sequential and Comparative Evaluation of Pain Treatment Effectiveness Response
Recruiting
VETERANS ONLY. Chronic low back pain (cLBP) is common. Most Americans will have at least one episode of low back pain in their lifetimes. Approximately 50% of all US Veterans have chronic pain, and CLBP is the most common type of pain in this population. This study will use a sequential randomized, pragmatic, 2-step comparative effectiveness study design. The main goal is to identify the best approach for treating cLBP using commonly recommended non-surgical and non-pharmacological options. The... Read More
Gender:
ALL
Ages:
All
Trial Updated:
05/15/2025
Locations: VA Loma Linda Healthcare System, Loma Linda, CA, Loma Linda, California
Conditions: Chronic Low Back Pain
Evaluation of Dosing Procedures of Chemotherapy Treatment (Carboplatin) With the Contrast Agent Iohexol
Recruiting
This trial studies how well iohexol works in helping doctors calculate the dose of carboplatin given to patients with cancer. Drugs used in chemotherapy, such as carboplatin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Understanding how to best calculate the dose of carboplatin given to patients with cancer may help doctors learn how to improve the use of carboplatin in the future.
Gender:
MALE
Ages:
18 years and above
Trial Updated:
05/15/2025
Locations: UC San Diego Health System - Encinitas, Encinitas, California
Conditions: Malignant Solid Neoplasm
Clinical Trial to Evaluate the Safety and Efficacy of MeRT Treatment in Post-Traumatic Stress Disorder
Recruiting
The purpose of this study is to evaluate the safety and efficacy of individualized, Biometrics-guided Magnetic e-Resonance Therapy (MeRT) treatment of Post-Traumatic Stress Disorder
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
05/15/2025
Locations: BrainHealth Solutions, Costa Mesa, California
Conditions: Postconcussive Symptoms, Traumatic Brain Injury, PostTraumatic Stress Disorder
The Pediatric Anesthesia Quality Improvement Project
Recruiting
The Study is designed to collect information about adverse events that occur in children undergoing anesthesia in participating hospitals. Demographic information will be collected on all anesthetics. An analysis of each adverse event will be performed and entered into the database. From this information we will devise strategies to prevent these adverse events.
Gender:
ALL
Ages:
21 years and below
Trial Updated:
05/15/2025
Locations: Children's Hospital Los Angeles, Los Angeles, California
Conditions: Surgery, Anesthesia, Children
Longitudinal Study for Eosinophilic Granulomatosis With Polyangiitis
Recruiting
Eosinophilic granulomatosis with polyangiitis (EGPA) is a rare immune system disorder that causes asthma, an excessive number of eosinophils (a type of white blood cell) in the blood, and the inflammation of blood vessels, or vasculitis. In order to properly treat EGPA, it is critical that the level of disease activity can be determined over the course of the disease. The purpose of this study is to determine new biological markers, or biomarkers, that may be used to assess the severity of this... Read More
Gender:
ALL
Ages:
All
Trial Updated:
05/15/2025
Locations: University of California San Diego, San Diego, California
Conditions: Eosinophilic Granulomatosis With Polyangiitis, Churg-Strauss Syndrome
A Phase 2b, Randomized, Double-blind, Active-controlled Study of Single Dose CVXGA Intranasal COVID-19 Vaccine in Adults
Recruiting
The purpose of this trial is to assess the safety and relative efficacy of CVXGA (CVXGA50), a KP.2 containing vaccine, compared to COMIRNATY® (COVID-19 Vaccine, mRNA; 2024-2025 Formula), a currently approved COVID-19 vaccine in the prevention of symptomatic, RT-PCR-confirmed SARS-CoV-2 infection. The trial will enroll up to 10016 healthy participants.
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
05/14/2025
Locations: Velocity Clinical Research, Chula Vista, Chula Vista, California
Conditions: COVID-19
TBI Rehabilitation and Activation in Veterans
Recruiting
This trial will evaluate the impact of a multicomponent program (TBI Rehabilitation and Activation in Veterans; TRAIN-Vets) on improving cognitive function over an 8-month trial period in older Veterans with traumatic brain injury (TBI). Older Veterans with a history of TBI and subjective cognitive complaints will be enrolled and randomly assign to either the TRAIN-Vets intervention (consisting of aquatic-based exercise training, cognitive training, and lifestyle coaching) or the Health Educatio... Read More
Gender:
ALL
Ages:
Between 50 years and 89 years
Trial Updated:
05/14/2025
Locations: VA Palo Alto Health Care System, Palo Alto, California
Conditions: Traumatic Brain Injury
Study to Evaluate the Effects of NMRA-323511 Among Healthy Elderly and Adults With Agitation Associated With Dementia Due to Alzheimer's Disease
Recruiting
This study consists of 2 parts, Part A and Part B. Part A is a single center, randomized, double-blind, placebo-controlled cohort designed to evaluate the safety, tolerability, and pharmacokinetics (PK) of NMRA-323511 among healthy elderly.
Part B is a multicenter, randomized, double-blinded, placebo-controlled, parallel-group cohort to evaluate the safety, tolerability, and efficacy of NMRA-323511 among adults with Agitation Associated with Dementia due to Alzheimer's Disease.
Part A consists... Read More
Gender:
ALL
Ages:
Between 55 years and 90 years
Trial Updated:
05/14/2025
Locations: Neumora Investigator Site, Costa Mesa, California
Conditions: Alzheimer's Disease, Healthy Elderly
Stress Management Program
Recruiting
This study will test the immediate and long term (post 4 weeks of daily practice) effectiveness of two breathwork practices, cyclic sighing and box breathing, in comparison to hypnosis and an audiobook about stress, on psychological and physiological variables.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/14/2025
Locations: Psychiatry & Behavioral Sciences, Stanford, California
Conditions: Stress, Anxiety
An Open-label Dose Escalation/Expansion Trial to Evaluate the Safety and Anti-tumor Activity of TEV-56278 Alone or in Combination With Pembrolizumab in Participants With Advanced or Metastatic Solid Tumors
Recruiting
The primary objectives of this trial are to:
* Characterize the safety and tolerability of TEV-56278
* Determine the Recommended Phase 2 Dose (RP2D)
* Evaluate antitumor activity of TEV-56278
* Determine the safety and tolerability of TEV-56278 in combination with pembrolizumab
* Determine a RP2D of TEV-56278 in combination with pembrolizumab
The secondary objectives of this trial are to:
* Characterize the serum pharmacokinetics of TEV-56278
* Evaluate the antitumor activity of TEV-56278
* D... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/14/2025
Locations: Teva Investigational Site 12017, Los Angeles, California
Conditions: Advanced Solid Tumors
Study to Assess the Efficacy and Safety of Iovera®° System in Subjects With Upper Extremity Spasticity
Recruiting
This multicenter, randomized, double-blind, sham-controlled study is designed to evaluate the efficacy and safety of the iovera° system in subjects with upper extremity spasticity. A total of approximately 132 subjects will be enrolled; 88 subjects will receive treatment with the iovera° system and 44 subjects will receive sham treatment (sham iovera° system treatment).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/14/2025
Locations: Rancho Los Amigos National Rehabilitation Center, Downey, California
Conditions: Spasticity, Cerebral or Spinal Condition
A Study Assessing KB707 for the Treatment of Locally Advanced or Metastatic Solid Tumors
Recruiting
KB707-01 is a Phase 1/2, open-label, multicenter, dose escalation and expansion study. The study will evaluate the safety and tolerability of KB707 in adults with locally advanced or metastatic solid tumors who have progressed on standard of care therapy, cannot tolerate standard of care therapy, refused standard of care therapy, or for whom there is no standard of care therapy as well as the safety, tolerability, preliminary efficacy, and immunologic effect of KB707 administered in combination... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/14/2025
Locations: UCLA Health, Los Angeles, California
Conditions: Cancer, Melanoma Stage III, Melanoma Stage IV, Cutaneous Melanoma
2581 - 2592 of 5617
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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