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California Paid Clinical Trials
A listing of 5588 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
553 - 564 of 5588
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California is currently home to 5588 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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Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Randomised Clinical Trial to Investigate Efficacy and Safety of Benralizumab 30 mg SC as an add-on Therapy in Uncontrolled Eosinophilic Asthma Patients Treated With Medium-dose ICS-LABA Compared to Conventional Escalation to High-dose ICS-LABA Treatment
Recruiting
This study evaluates the efficacy and safety of benralizumab as an add-on therapy in uncontrolled eosinophilic asthma participants treated with medium-dose ICS-LABA compared to the conventional treatment step of escalation of inhaled therapy to high-dose ICS-LABA.
Gender:
ALL
Ages:
Between 12 years and 75 years
Trial Updated:
06/24/2025
Locations: Research Site, Inglewood, California
Conditions: Eosinophilic Asthma
A Study of Dulaglutide (LY2189265) 3.0 mg and 4.5 mg in Pediatric Participants With Type 2 Diabetes Mellitus (AWARD-PEDS PLUS)
Recruiting
The main purpose of this study is to evaluate additional dosing options for dulaglutide in pediatric participants with Type 2 Diabetes. Participation in this study will last about 8 months.
Gender:
ALL
Ages:
Between 10 years and 17 years
Trial Updated:
06/24/2025
Locations: Division of Endocrinology, Diabetes, and Metabolism, Los Angeles, California
Conditions: Type 2 Diabetes
A Study to Assess the Efficacy, Safety, and Tolerability of IMVT-1402 as Treatment for Adult Participants With Graves' Disease
Recruiting
This is a study to assess the efficacy, safety, and tolerability of IMVT-1402 in adult participants with Graves' disease (GD) who are hyperthyroid despite antithyroid drug (ATD) treatment.
The primary objective of this study is to evaluate the efficacy of IMVT-1402 versus placebo as assessed by T3 (total triiodothyronine \[T3\] or free triiodothyronine \[FT3\]), free thyroxine (FT4), thyroid-stimulating hormone (TSH), and ATD dose at Week 26.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
06/24/2025
Locations: Site Number - 1001, Los Angeles, California
Conditions: Graves' Disease
Safety and Efficacy of EIK1001-006 in Combo With Pembro Versus Placebo and Pembro as First-Line Therapy in Patients With Advanced Melanoma.
Recruiting
The study is for patients with advanced melanoma who are eligible for standard therapy with Pembrolizumab.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: The Oncology Institution of Hope and Innovation, Los Angeles, California
Conditions: Advanced Melanoma
A Study of Orforglipron (LY3502970) in Adolescent Participants With Obesity, or Overweight With Related Comorbidities
Recruiting
The main purpose of this study, performed under Master Protocol J4M-MC-PWMP, is to evaluate the efficacy, safety, and pharmacokinetics of orforglipron once daily oral versus Placebo in adolescent participants with obesity, or overweight with related comorbidities. Participation in the study will last about 18 months.
Gender:
ALL
Ages:
Between 12 years and 17 years
Trial Updated:
06/24/2025
Locations: Carey Chronis MD Pediatric, Infant and Adolescent Medicine, Ventura, California
Conditions: Obesity, Overweight
A Platform Trial for Pediatric Participants With Obesity or Overweight (LY900040)
Recruiting
The purpose of this pediatric, chronic weight management, Phase 3 Master Protocol (PWMP) is to create a framework to evaluate the safety and efficacy of pharmacologic agents for the treatment of obesity or overweight in pediatric participants.
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
06/24/2025
Locations: Carey Chronis MD Pediatric, Infant and Adolescent Medicine, Ventura, California
Conditions: Obesity, Overweight
Testing Low Dose Tamoxifen for Invasive Breast Cancer, the (LoTam) Trial
Recruiting
This phase III trial compares the effect of low dose tamoxifen to usual hormonal therapy, including aromatase inhibitors, in treating post-menopausal women with hormone positive, HER2 negative early stage breast cancer. Tamoxifen is in a class of medications known as antiestrogens. It blocks the activity of estrogen (a female hormone) in the breast. This may stop the growth of some breast tumors that need estrogen to grow. Aromatase inhibitors, such as anastrozole, letrozole, and exemestane, pre... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Tower Cancer Research Foundation, Beverly Hills, California
Conditions: Anatomic Stage 0 Breast Cancer AJCC V8, Anatomic Stage 1 Breast Cancer AJCC V8, Anatomic Stage IIA Breast Cancer AJCC V8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma
Testing the Addition of the Anti-Cancer Drug Tivozanib to Immunotherapy (Pembrolizumab) After Surgery to Remove All Known Sites of Kidney Cancer
Recruiting
This phase III trial compares the effect of adding tivozanib to standard therapy pembrolizumab versus pembrolizumab alone for the treatment of patients with high-risk renal cell carcinoma (RCC). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Tivozanib is in a class of medications called kinase inhibitors. It works by blocking the action of the abnormal prot... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: City of Hope Comprehensive Cancer Center, Duarte, California
Conditions: Clear Cell Renal Cell Carcinoma, Renal Cell Carcinoma (RCC), Stage II Renal Pelvis Cancer AJCC V8, Stage III Renal Pelvis Cancer AJCC V8
A Study of LY4006895 in Healthy Participants With Early Symptomatic Alzheimer's Disease (AD)
Recruiting
The main purpose of this study is to evaluate the safety and tolerability of the study drug known as LY4006895. Part A will administer a single-ascending dose in healthy participants or Part B will administer multiple-ascending doses in participants with early symptomatic Alzheimer's Disease (AD).
Blood tests will be performed to check how much LY4006895 gets into the bloodstream and how long it takes the body to eliminate it.
This is a 2-part study and will last approximately 29 weeks for Par... Read More
Gender:
ALL
Ages:
Between 45 years and 85 years
Trial Updated:
06/24/2025
Locations: Collaborative Neuroscience Network - CNS, Los Alamitos, California
Conditions: Alzheimer Disease, Healthy
A Study of Remternetug (LY3372993) in Early Alzheimer's Disease (TRAILRUNNER-ALZ 3)
Recruiting
The purpose of this study is to measure the difference in time to developing or worsening memory, thinking, or functional problems due to Alzheimer's disease occurring in participants receiving study drug compared to placebo.
Participation could last up to 255 weeks including screening, a double-blind treatment period, and a double-blind observation period. In addition, eligible participants who receive placebo during the double-blind treatment period may choose to extend their study participat... Read More
Gender:
ALL
Ages:
Between 55 years and 80 years
Trial Updated:
06/24/2025
Locations: Neuro-Pain Medical Center, Fresno, California
Conditions: Alzheimer's Disease
A Master Protocol for Orforglipron in Participants With Obstructive Sleep Apnea and Obesity or Overweight
Recruiting
Study GZRA is a master protocol that will support 2 independent studies, GZ01 and GZ02. Participants will be assigned to the appropriate study prior to randomization. The purpose of the studies is to evaluate the efficacy and safety of orforglipron in participants who have moderate-to-severe OSA and obesity or overweight. Study GZ01 will include participants who are unable or are unwilling to use PAP therapy. Study GZ02 will include participants who are on PAP therapy for at least 3 months at ti... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Ark Clinical Research, Long Beach, California
Conditions: OSA, Overweight or Obesity
Targeted Treatment for Metastatic Prostate Cancer, The PREDICT Trial
Recruiting
This phase II trial evaluates whether genetic testing in prostate cancer is helpful in deciding which study treatment patients are assigned. Patient cancer tissue samples are obtained from a previous surgery or biopsy procedure and tested for deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) abnormalities or mutations in their cancer. Valemetostat tosylate is in a class of medications called EZH1/EZH2 inhibitors. It blocks proteins called EZH1 and EZH2, which may help slow or stop the sprea... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: UC San Diego Health System - Encinitas, Encinitas, California
Conditions: Castration-Resistant Prostate Carcinoma, Stage IVB Prostate Cancer AJCC v8
553 - 564 of 5588
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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