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California Paid Clinical Trials
A listing of 5615 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
2065 - 2076 of 5615
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California is currently home to 5615 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
First-in-Human, Phase I, Open-label, Multicenter, Dose Escalation Clinical Study
Recruiting
First-in-Human, Phase I, open-label, multicenter, dose-escalation study to evaluate the safety, tolerability, PK, pharmacodynamics, and preliminary antitumor activity of FL115 in patients with advanced solid tumors who have progressed or are intolerant to current standard-of-care therapies, including immune check-point inhibitors administered in single-agent or combination use.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/22/2025
Locations: HOAG Memorial Hospital Presbyterian, Newport Beach, California
Conditions: Locally Advanced/Metastatic Solid Tumors
A Study to Assess Safety and Tolerability of PCRX-201 in Subjects With Painful Osteoarthritis of the Knee
Recruiting
The goal of this clinical trial is to learn if a single knee injection of different doses (Dose A and Dose B) of an investigation product PCRX-201, following steroid pretreatment, is safe and tolerable in male of female patients 45 to 80 years old with osteoarthritis of the knee. It will also learn how the body reacts to the PCRX-201 injection and how effective the treatment is.
Researchers will compare Dose A and Dose B of PCRX-201 versus placebo from Week 1 through Week 52 to assess adverse e... Read More
Gender:
ALL
Ages:
Between 45 years and 80 years
Trial Updated:
06/21/2025
Locations: Osteoporosis Medical Center, Beverly Hills, California
Conditions: Osteoarthritis (OA) of the Knee
Repurposing Riluzole for Cancer-Related Cognitive Impairment: A Pilot Trial
Recruiting
This is a phase 2a, randomized, double-blinded, placebo-controlled pilot clinical trial determining the impact of riluzole therapy on circulating brain derived neuropathic factor (BDNF) levels of cancer survivors with cancer related cognitive impairment.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/21/2025
Locations: Chao Family Comprehensive Cancer Center, University of California Irvine, Orange, California
Conditions: Breast Cancer, Sarcoma, Gastric Cancer, Lung Cancer, Head and Neck Cancer, Colorectal Cancer, Ovarian Cancer, Liver Cancer, Genitourinary Cancer, Gynecologic Cancer
Feasibility of an In-home Standing and Walking Intervention for Infants With and at High Risk of Cerebral Palsy
Recruiting
The purpose of this study is to evaluate the feasibility and begin to evaluate the effect of an intensive in-home standing and walking intervention for infants with or at high risk of cerebral palsy.
Gender:
ALL
Ages:
Between 5 months and 2 years
Trial Updated:
06/21/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Cerebral Palsy
A Multicenter Study in Bronchoscopy Combining Stimulated Raman Histology With Artificial Intelligence for Rapid Lung Cancer Detection - The ON-SITE Study
Recruiting
The ON-SITE study represents a prospective, observational study focused on the training/tuning and pivotal validation of deep learning algorithms that detect cell/tissue morphology suspicious for cancer in biopsies of peripheral lung nodules/masses and mediastinal/hilar lymph nodes imaged with the NIO Laser Imaging System in the procedure room without requiring traditional sample processing.
The study includes four arms based on biopsy location and biopsy modality/tool:
1. Transbronchial force... Read More
Gender:
ALL
Ages:
22 years and above
Trial Updated:
06/20/2025
Locations: UC San Diego, San Diego, California
Conditions: Lung Biopsy
Extended-release Sodium Oxybate in Children
Recruiting
The main objectives of this study are to determine the treatment preferences of children with narcolepsy type 1 between Extended-release sodium oxybate and Non-extended-release oxybates (Sodium oxybate or a medication with the combination of Calcium, magnesium, potassium, and sodium oxybates). The study will also assess the safety, convenience, and tolerability of Extended-release sodium oxybate. Additionally, the researchers aim to assess how well Extended-release sodium oxybate works in treati... Read More
Gender:
ALL
Ages:
Between 7 years and 17 years
Trial Updated:
06/20/2025
Locations: Stanford University, Redwood City, California
Conditions: Narcolepsy Type 1 (NT 1)
A Study of Amivantamab and mFOLFOX6 or FOLFIRI Versus Cetuximab and mFOLFOX6 or FOLFIRI as First-line Treatment in Participants With KRAS/NRAS and BRAF Wild-type Unresectable or Metastatic Left-sided Colorectal Cancer
Recruiting
The purpose of this study is to compare how long the participants are disease-free (progression-free survival) when treated with amivantamab and chemotherapy with 5-fluorouracil, leucovorin calcium (folinic acid) or levoleucovorin, oxaliplatin (mFOLFOX6) or 5-fluorouracil, leucovorin calcium (folinic acid) or levoleucovorin, and irinotecan hydrochloride (FOLFIRI) versus cetuximab and mFOLFOX6 or FOLFIRI in adult participants with Kirsten rat sarcoma viral oncogene homolog (KRAS)/ Neuroblastoma R... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/20/2025
Locations: CBCC Global Research, Bakersfield, California
Conditions: Colorectal Neoplasms
Consolidation of First-Line MRD+ Remission With Cema-cel in Patients With LBCL
Recruiting
This is a randomized, open-label study in adult patients who have completed standard first line therapy for large B-cell lymphoma (LBCL) and achieved a complete response or partial response suitable for observation, but who have minimal residual disease (MRD) as detected by the Foresight CLARITY™ Investigational Use Only (IUO) MRD test, powered by PhasED-Seq™. The purpose of the trial is to assess the efficacy and safety of consolidation with cemacabtagene ansegedleucel (cema-cel), an allogeneic... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/20/2025
Locations: Alta Bates Summit Medical Center, Berkeley, California
Conditions: Large B-cell Lymphoma
Evaluating a Lifestyle Intervention to Prevent Recurrence of Diabetic Foot Ulcers
Recruiting
People with diabetes often experience foot ulcers, which can harm their ability to move, lower their quality of life, and increase the chances of losing a limb. These diabetic foot ulcers (DFUs) commonly come back (recur) even after they've healed, so it's crucial to stop them from returning to avoid toe, foot , or leg amputation. While wearing special shoes to reduce pressure on the feet is essential for healing and preventing DFUs, many people struggle to follow this treatment plan once their... Read More
Gender:
ALL
Ages:
21 years and above
Trial Updated:
06/20/2025
Locations: Rancho Los Amigos National Rehabilitation Center, Downey, California
Conditions: Diabetic Foot, Diabetic Foot Ulcer, Foot Ulcer, Diabetic, Foot Wound
Creatine Supplementation in Concussion Recovery
Recruiting
The proposed study aims to compare concussion recovery in those supplementing creatine and those not supplementing creatine. Specific aim 1: To compare number of days until asymptomatic between those taking creatine vs. those not taking creatine following a concussion. Hypothesis: The investigators hypothesize that individuals taking creatine will become asymptomatic sooner than those not taking creatine.Specific aim 2: To compare typical concussion assessment scores (i.e., symptom score, mental... Read More
Gender:
ALL
Ages:
Between 18 years and 35 years
Trial Updated:
06/20/2025
Locations: San Diego State University, San Diego, California
Conditions: Concussion, Brain
Precision Ventilation vs Standard Care for Acute Respiratory Distress Syndrome
Recruiting
The goal of this interventional study is to compare standard mechanical ventilation to a lung-stress oriented ventilation strategy in patients with Acute Respiratory Distress Syndrome (ARDS). Participants will be ventilated according to one of two different strategies. The main question the study hopes to answer is whether the personalized ventilation strategy helps improve survival.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/20/2025
Locations: University of California, San Diego, La Jolla, California
Conditions: Acute Respiratory Distress Syndrome, Respiratory Failure
A Screening Study to Collect Samples for TAA, HLA & HLA Loss of Heterozygosity in Patients With Metastatic Solid Tumors
Recruiting
TScan Therapeutics is developing cellular therapies across multiple solid tumors in which autologous T cells are engineered to express a T cell receptor that recognizes tumor-associated antigens presented on specific Human Leukocyte Antigen (HLA) molecules. The purpose of this screening study is to collect samples to conduct HLA genotyping, HLA Loss of Heterozygosity (LOH) assessment, and expression of Tumor-associated Antigens (TAA) testing. These results will be used to determine if participan... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/20/2025
Locations: University of California San Diego, San Diego, California
Conditions: Head and Neck Cancer, Cervical Cancer, Non Small Cell Lung Cancer, HPV16 Related Cancers, Sarcoma, Uveal Melanoma, NUT Carcinoma
2065 - 2076 of 5615
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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