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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.
4069 - 4080 of 5602
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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
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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
Birth Control Clinical Research Study
Recruiting
Living with obesity and looking for a birth control option that is right for you? Clinical trials are now enrolling women with a body mass index (BMI) of 30 or more in the area to help study a potential new progestin-only contraceptive patch. Participating in research studies can help advance birth control options. Don’t let financial stress hold you back. All study-related assessments, care, and study patch are available at no cost. You may also be reimbursed for study-related travel.
Conditions:
Obesity
Overweight
Overweight and 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
Checkpoint Inhibition In Pediatric Hepatocellular Carcinoma
Recruiting
This research study is studying an immunotherapy drug (pembrolizumab or KEYTRUDA) as a possible treatment for pediatric hepatocellular carcinoma or hepatocellular neoplasm not otherwise specified (HCN NOS).
Gender:
ALL
Ages:
Between 0 years and 30 years
Trial Updated:
01/27/2025
Locations: University of California San Francisco, San Francisco, California
Conditions: Hepatocellular Carcinoma, Childhood, Liver Cancer, Fibrolamellar Carcinoma, Liver Cancer, Pediatric
A Study of Bispecific Antibody MCLA-158 in Patients With Advanced Solid Tumors
Recruiting
This is a Phase 1/2 open-label, multi-center, multi-national study with an initial dose escalation part to determine the recommended Phase II dose (RP2D) of MCLA-158 single agent in patients with mCRC.
The dose escalation part has been completed and the RP2D will be further evaluated in an expansion part of the study. Cohorts of selected solid tumor indications for which there is evidence of EGFR dependency and potential sensitivity to EGFR inhibition will be evaluated including head and neck c... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
01/27/2025
Locations: UCSD, La Jolla, California
Conditions: Advanced/Metastatic Solid Tumors, Colorectal Cancer, Gastric Cancer, Gastroesophageal-junction Cancer, NSCLC, HNSCC, Head and Neck Squamous Cell Carcinoma, Esophageal Cancer
Fecal Microbiota Transplant National Registry
Recruiting
A national data registry of patients receiving fecal microbiota transplantation (FMT) or other gut-related-microbiota products designed to prospectively assess short and long-term safety and effectiveness
Gender:
ALL
Ages:
All
Trial Updated:
01/27/2025
Locations: Children's Hospital of Los Angeles, Los Angeles, California
Conditions: Fecal Microbiota Transplantation, Clostridium Difficile Infection, Gut Microbiome
Monitoring Pregnancy and Infant Outcomes Following Tralokinumab Exposure During Pregnancy in the US and Canada - PROTECT
Recruiting
The goal of this observational study is to learn about exposure to tralokinumab during pregnancy, as well as atopic dermatitis (AD) during pregnancy.
The main question the study aims to answer is whether pregnant people who have been exposed to tralokinumab during pregnancy experience any differences in pregnancy and infant outcomes compared to women with atopic dermatitis who have not been exposed to tralokinumab during pregnancy. Participants are not required to take tralokinumab during the s... Read More
Gender:
FEMALE
Ages:
All
Trial Updated:
01/26/2025
Locations: University of California San Diego (UCSD), La Jolla, California
Conditions: Atopic Dermatitis, Eczema
Stelara and Tremfya Pregnancy Exposure Registry OTIS Autoimmune Diseases in Pregnancy Project
Recruiting
The purpose of the OTIS Autoimmune Diseases in Pregnancy Study is to monitor planned and unplanned pregnancies exposed to certain medications, to evaluate the possible teratogenic effect of these medications and to follow live born infants for one year after birth. With respect to fetal outcome, it is important to evaluate the spectrum of outcomes that may be relevant to a medication exposure during pregnancy, and these include both easily recognizable defects which are visible at birth, as well... Read More
Gender:
FEMALE
Ages:
All
Trial Updated:
01/26/2025
Locations: University of California, San Diego, La Jolla, California
64Cu-GRIP B in Patients With Advanced Malignancies
Recruiting
This phase I/II clinical trial evaluates if using a radiotracer targeting granzyme B, 64-copper granzyme targeting restricted interaction peptide specific to family member B (64 Cu-GRIP B) with positron emission tomography (PET) imaging can be safe and useful for detecting granzyme B (GrB) in patients with advanced cancers that has spread to nearby tissue or lymph nodes (advanced). Granzyme B (GrB) is a biomarker produced by immune cells in response to immunotherapy, which may highlight tumors t... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
01/25/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Prostate Cancer, Renal Cancer, Urethral Cancer, Advanced Solid Tumor, Metastatic Castration-resistant Prostate Cancer, Solid Tumor, Adult
Effects of Mango or Low-Fat Cookie Consumption on Gut Health, and Its Relationship With Mental, Sexual and Skin Health
Recruiting
The objective of the proposed research is to determine the effects of fresh mango consumption on gut microbiome, and its relationship with skin health, sexual and mental health in relatively healthy adults.
Gender:
ALL
Ages:
Between 18 years and 50 years
Trial Updated:
01/24/2025
Locations: San Diego State University, San Diego, California
Conditions: Gut Microbiome
Prospective Multi-Center Trial for FemBloc Permanent Birth Control
Recruiting
Prospective, multi-center, international, unblinded, single-arm trial of subjects undergoing FemBloc followed by ultrasound confirmation test.
Gender:
FEMALE
Ages:
Between 21 years and 50 years
Trial Updated:
01/24/2025
Locations: Stanford University, Palo Alto, California
Conditions: Contraception
Niclosamide in Pediatric Patients With Relapsed and Refractory AML
Recruiting
Protocol is designed to evaluate a niclosamide dose escalation scale in combination with cytarabine as a therapeutic modality for pediatric subjects with relapsed/refractory acute myeloid leukemia.
Gender:
ALL
Ages:
Between 2 years and 25 years
Trial Updated:
01/24/2025
Locations: Stanford University, Palo Alto, California
Conditions: Acute Myeloid Leukemia (AML)
Image-Guided (68Ga-PSMA-11 PET/CT) Prostate Biopsy for the Diagnosis of Prostate Cancer in Men With Prior Negative/Inconclusive Biopsy
Recruiting
This early phase I trial studies how well an image-guided prostate biopsy using the imaging agent 68Ga-prostate-specific membrane antigen (PSMA)-11 with a positron emission tomography/computed tomography (PET/CT) scan works in diagnosing prostate cancer in men with a prior negative or inconclusive prostate biopsy. PSMA is a protein that is found on the surface of prostate cancer cells. 68Ga-PSMA-11 is made up of a substance that binds to PSMA on tumor cells, linked with a radioactive substance t... Read More
Gender:
MALE
Ages:
Between 18 years and 90 years
Trial Updated:
01/24/2025
Locations: UCLA / Jonsson Comprehensive Cancer Center, Los Angeles, California
Conditions: Prostate Carcinoma
Adjuvant ctDNA-Adapted Personalized Treatment in Early Stage NSCLC (ADAPT-E)
Recruiting
In this study circulating tumor DNA (ctDNA) blood testing is used to detect the residual blood cancer. If residual cancer using this blood test is detected there may be at higher risk of having the cancer return. The study is going to test whether or not the number of circulating cancer cells detected in the blood can be reduced by administration durvalumab after the standard treatment if you are tested positive for the residual cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
01/24/2025
Locations: Stanford University, Stanford, California
Conditions: Non-small Cell Lung Cancer, Non-small Cell Lung Cancer Stage I, Non-small Cell Lung Cancer Stage II, Non-small Cell Lung Cancer Stage III
Cardiotoxicity Assessment Through Comprehensive Heart Imaging to Predict Heart Failure
Recruiting
Anthracycline chemotherapies (e.g. doxorubicin, daunorubicin) are commonly given to treat pediatric cancer, and carry a risk of cardiotoxicity. Over the long term, children who receive these therapies have an increased risk of heart failure and early cardiovascular death. However, current strategies for identifying patients who are at risk prior to the development of significant changes in heart function are limited. This study will focus on imaging markers of cardiac injury and dysfunction with... Read More
Gender:
ALL
Ages:
Between 13 years and 39 years
Trial Updated:
01/24/2025
Locations: Rady Children's Hospital, San Diego, California
Conditions: Cardiotoxicity, Pediatric Cancer, Heart Failure
4069 - 4080 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.
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