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California Paid Clinical Trials
A listing of 5626 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
433 - 444 of 5626
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California is currently home to 5626 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:
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Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
A Study to Investigate Safety, Tolerability, Pharmacokinetics (PK), Pharmacodynamics (PD), and Immunogenicity of RO7669330 in Participants With Geographic Atrophy (GA) Secondary to Age-related Macular Degeneration (AMD)
Recruiting
The main purpose of this study is to assess the ocular and systemic safety and tolerability of RO7669330 in GA secondary to AMD after multiple unilateral intravitreal (IVT) doses.
Gender:
ALL
Ages:
55 years and above
Trial Updated:
07/17/2025
Locations: Retina-Vitreous Associates Medical Group, Beverly Hills, California
Conditions: Geographic Atrophy, Age-related Macular Degeneration
Comparison of I-124 PET/CT for the Diagnosis of Thyroid Cancer
Recruiting
Persons diagnosed with thyroid cancer are often treated initially with a thyroidectomy, which is followed by ablation using Iodine-131, a therapy which has been shown to be effective and safe. Imaging of metastatic thyroid cancer has been performed with whole body I-131 and Iodine 123 (I-123) imaging for many decades and use I-123 for staging studies. Iodine 124 (I-124) is a radioisotope of iodine which emits a positron and is imaged using PET (positron emission tomography). This is a single arm... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/17/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Thyroid Cancer
A Study to Assess the Bioavailability of Risankizumab Following Subcutaneous Administration With Prefilled Pen Relative to a Prefilled Syringe in Healthy Adult Participants
Recruiting
This study will assess the pharmacokinetics, relative bioavailability, immunogenicity, safety, and tolerability of risankizumab following subcutaneous (SC) administration with a prefilled pen or a prefilled syringe in healthy adult participants.
Gender:
ALL
Ages:
Between 18 years and 60 years
Trial Updated:
07/17/2025
Locations: Altasciences Clinical Los Angeles /ID# 276446, Cypress, California
Conditions: Healthy Volunteers
Imaging of Solid Tumors Using 18F-TRX
Recruiting
This phase I trial tests the safety and effectiveness of 18F-TRX in detecting tumors (cancer) patients with solid tumors. 18F-TRX is an imaging tracer that is used to visualize tumors using a PET scan. It specifically targets and detects labile (unstable) iron levels within tissues, including tumors. Diagnostic procedures, such as 18F-TRX PET/CT or PET/MRI, may help detect tumors in patients with solid tumors
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/17/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Solid Tumor, Solid Carcinoma, Castration-Resistant Prostate Carcinoma, Locally Advanced Clear Cell Renal Cell Carcinoma, Metastatic Clear Cell Renal Cell Carcinoma, Metastatic Malignant Solid Neoplasm, Stage III Renal Cell Cancer AJCC v8, Stage IV Renal Cell Cancer AJCC v8, Stage IVB Prostate Cancer AJCC v8, Glioma, Malignant
A Study to Assess Efficacy and Safety of JNJ-77242113 Compared to Placebo and Ustekinumab in Participants With Moderate to Severe Plaque Psoriasis
Recruiting
The main purpose of this study is to assess how well JNJ-77242113 works when compared to placebo and ustekinumab in participants with moderate to severe plaque psoriasis.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/17/2025
Locations: California Dermatology & Clinical Research Institute, Encinitas, California
Conditions: Plaque Psoriasis
Multi-center Trial of Ferric Derisomaltose Versus no Intravenous Iron in Iron-deficient Subjects With Symptomatic Chronic Heart Failure
Recruiting
The goal of this clinical trial is to learn if the IV Iron treatment ferric derisomaltose helps in the treatment of chronic heart failure in people with iron deficiency. The main question it aims to answer is:
• How many participants are admitted to the hospital or die from a disease in the heart or blood vessels
Researchers will compare treatment with ferric derisomaltose to no treatment with ferric derisomaltose. This will be done to see how well ferric derisomaltose works.
Participants wil... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/17/2025
Locations: Private clinic, Pasadena, California
Conditions: Chronic Heart Failure, Iron Deficiencies
A Study to Assess the Pharmacokinetics and Safety of Bimekizumab in Children and Adolescents With Moderate to Severe Hidradenitis Suppurativa
Recruiting
The purpose of the study is to assess the PK of bimekizumab following subcutaneous (sc) administration in study participants with moderate to severe hidradenitis suppurativa (HS)
Gender:
ALL
Ages:
Between 9 years and 17 years
Trial Updated:
07/17/2025
Locations: Hs0006 50708, Roseville, California
Conditions: Hidradenitis Suppurativa
A Study to Investigate the Efficacy and Safety of Lebrikizumab in Participants With Moderate-to-Severe Atopic Hand and Foot Dermatitis
Recruiting
The main purpose of this study is to assess the efficacy of lebrikizumab versus placebo on skin lesions in adults and adolescent participants with atopic hand and foot dermatitis.
This study lasts up to 32 weeks, including a 6-week screening period, a 16-week treatment period, and a safety follow-up visit 12 weeks after the last dose.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/17/2025
Locations: First OC Dermatology Research Inc, Fountain Valley, California
Conditions: Atopic Hand and Foot Dermatitis
A Study of Tirzepatide (LY3298176) Compared With Placebo in Adults With Type 1 Diabetes and Obesity or Overweight
Recruiting
The main purpose of this study is to find out how well and how safely tirzepatide works in adults who have type 1 diabetes and obesity or overweight. Participation in the study will last about 49 weeks.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/17/2025
Locations: Sansum Diabetes Research Institute, Goleta, California
Conditions: Type 1 Diabetes, Obesity, Overweight
PET [89Zr]DFO-starPEG in Solid Tumors
Recruiting
This is a first-in-human, pilot study of the novel PET-imaging radiotracer \[89Zr\]DFO-starPEG. The study is designed to obtain preliminary data to support future development of this agent as an imaging surrogate to visualize enhanced permeability and retention (EPR)-mediated tracer uptake before administration of EPR-based nanomedicines.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/17/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Solid Tumor, Solid Carcinoma, Soft Tissue Lesion
A Study of JNJ-95475939 in the Treatment of Participants With Moderate to Severe Atopic Dermatitis (AD)
Recruiting
The purpose of this study is to evaluate how well JNJ-95475939 works as compared to placebo in participants with moderate to severe atopic dermatitis.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/17/2025
Locations: First OC Dermatology, Fountain Valley, California
Conditions: Dermatitis, Atopic
VY7523-102: Randomized, Placebo-Controlled, Double-Blind, Multiple Ascending Dose Study in Participants With Early Alzheimer's Disease
Recruiting
This study is to be conducted in participants with early Alzheimer's Disease to test VY7523, a new drug being researched for treatment of Alzheimer's Disease. This study will look at how safe the drug is and how it works in the brain. It was first tested in normal, healthy participants who volunteered to participate. The study will look at three different dose levels, starting with the lowest dose first and moving to higher doses and more participants after safety has been reviewed by doctors an... Read More
Gender:
ALL
Ages:
Between 50 years and 90 years
Trial Updated:
07/17/2025
Locations: VYGR Site 840018, Los Angeles, California
Conditions: Alzheimer's Disease (AD)
433 - 444 of 5626
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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