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California Paid Clinical Trials
A listing of 5609 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
1309 - 1320 of 5609
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California is currently home to 5609 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
(Z)-Endoxifen for the Treatment of Premenopausal Women With ER+/HER2- Breast Cancer
Recruiting
This open-label research study is studying (Z)-endoxifen as a possible treatment for pre-menopausal women with ER+/HER2- breast cancer. (Z)-endoxifen belongs to a group of drugs called selective estrogen receptor modulators or "SERM", which help block estrogen from attaching to cancer cells. This study has two parts: a pharmacokinetic part and a treatment part.
The PK part (how the body processes the drug) will enroll about 18 participants. All participants will take (Z)-endoxifen capsules dail... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: California Research Institute, Los Angeles, California
Conditions: Breast Neoplasms, Invasive Breast Cancer, Estrogen-receptor-positive Breast Cancer, HER2-negative Breast Cancer
Micro-UltraSound In Cancer - Active Surveillance
Recruiting
This study will compare the two imaging modalities (MRI and micro-ultrasound) during Active Surveillance of prostate cancer (PCa). Progression to clinically significant PCa will be assessed by first taking micro-US targeted samples (while blinded to MRI results), followed by MRI targeted samples, finishing with 12 systematic biopsy cores. The primary goal is to compare microUS to MRI for the detection of ≥GG2 PCa at confirmatory biopsy. This study will also collect blood samples from participant... Read More
Gender:
MALE
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: University of California Los Angeles, Department of Urology, Los Angeles, California
Conditions: Prostate Cancer
Study of XmAb®819 in Subjects With Advanced Clear Cell Renal Cell Carcinoma
Recruiting
The purpose of this study is to assess the safety and tolerability of XmAb®819 administered intravenous (IV) or subcutaneous (SC) in subjects with relapsed or refractory clear cell renal cell carcinoma and to identify the minimum safe and biologically active dose and the recommended dose (RD).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: Department of Medical Oncology and Therapeutics Research, City of Hope, Duarte, California
Conditions: Clear Cell Renal Cell Carcinoma
EyeConic: Qualification for Cone-Optogenetics
Recruiting
This study aims to prepare for the first-in-human clinical trial of cone optogenetics vision restoration. As a first step, this worldwide multicenter ocular imaging study (EyeConic Study) is performed to identify eligible patients.
Gender:
ALL
Ages:
All
Trial Updated:
07/28/2025
Locations: University of California San Francisco, Department of Ophthalmology, San Francisco, California
Conditions: Retinal Dystrophies
Endoscopic Evidence of Maintenance of Healing With Oral NEXIUM in Patients 1 to 11 Years Old With Erosive Esophagitis.
Recruiting
The aim of the study is to compare the safety and efficacy of two doses of Nexium in maintaining healing of erosive esophagitis in patients 1 to 11 years of age.
Gender:
ALL
Ages:
Between 1 year and 11 years
Trial Updated:
07/28/2025
Locations: Research Site, Fontana, California
Conditions: Erosive Esophagitis
GEMINI-NSCLC: NSCLC Biomarker Study
Recruiting
GEMINI NSCLC Study is a non-interventional study that will be collecting clinical and molecular health information from patients with NSCLC who will receive longitudinal blood collection in addition to their standard of care therapy and disease surveillance with the goals of identifying the molecular evolution of lung cancer with standard of care therapy, and determining the utility of ctDNA dynamics to predict risk of recurrence and therapeutic outcomes.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: MemorialCare, Fountain Valley, California
Conditions: Non-Small Cell Lung Cancer
Luteolin for the Treatment of People With Schizophrenia
Recruiting
Luteolin is a natural product found in foods such as celery, green pepper, parsley, and chamomile tea. It has been found to have anti-cancer, anti-oxidant, and anti-inflammatory properties. The purpose of this study is to determine if luteolin helps improve symptoms of schizophrenia.
Gender:
ALL
Ages:
Between 18 years and 60 years
Trial Updated:
07/28/2025
Locations: University of California, Los Angeles, Los Angeles, California
Conditions: Schizophrenia, Schizoaffective Disorder
A Study to Examine the Effects of Novel Therapy Linvoseltamab in Combination With Other Cancer Treatments for Adult Patients With Multiple Myeloma That is Resistant to Current Standard of Care Treatments
Recruiting
This study is researching an experimental drug called linvoseltamab in combination with other drugs for the treatment of a blood cancer called multiple myeloma. Linvoseltamab has previously been studied as a single agent (without other cancer treatments) in participants with multiple myeloma that returned after prior therapies and needed to be treated again.
In the initial study, some participants treated with linvoseltamab had improvement of their myeloma, including complete responses (no evid... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: Scripps Clinic Torrey Pines, San Diego, California
Conditions: Multiple Myeloma
Safety, Efficacy and Tolerability of Ianalumab Versus Placebo, Combination With SoC Therapy, in Participants With Active Lupus Nephritis
Recruiting
This trial will evaluate efficacy, safety, and tolerability of subcutaneous (s.c.) ianalumab given every 4 weeks (q4w) or every 12 weeks (q12w) compared to placebo, in combination with SoC, in adult participants with active LN
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
07/28/2025
Locations: Advanced Medical Research, La Palma, California
Conditions: Lupus Nephritis
COVID-19 International Drug Pregnancy Registry
Recruiting
The objective of the COVID-19 International Drug Pregnancy Registry (COVID-PR) is to evaluate obstetric, neonatal, and infant outcomes among women treated with monoclonal antibodies or antiviral drugs indicated for mild, moderate, or severe COVID-19 from the first day of the last menstrual period (LMP) to end of pregnancy. For monoclonal antibodies, the exposure period also includes 90 days prior to the first day of the LMP.
Gender:
FEMALE
Ages:
Between 18 years and 50 years
Trial Updated:
07/28/2025
Locations: Pregistry, Los Angeles, California
Conditions: Covid19
COVID-19 Vaccines International Pregnancy Exposure Registry
Recruiting
The objective of the COVID-19 Vaccines International Pregnancy Exposure Registry (C-VIPER) is to evaluate obstetric, neonatal, and infant outcomes among women vaccinated during pregnancy with a COVID-19 vaccine.
Specifically, the C-VIPER will estimate the risk of obstetric outcomes (spontaneous abortion, antenatal bleeding, gestational diabetes, gestational hypertension, intrauterine growth restriction, postpartum hemorrhage, fetal distress, uterine rupture, placenta previa, chorioamnionitis, C... Read More
Gender:
FEMALE
Ages:
Between 18 years and 50 years
Trial Updated:
07/28/2025
Locations: Pregistry, Los Angeles, California
Conditions: Covid19
BAFFR Targeting CAR-T Cells for the Treatment of Relapsed or Refractory B-cell ALL
Recruiting
A Phase 1 Study Evaluating BAFFR-targeting CAR T Cells for Patients with Relapsed or Refractory B-cell Acute Lymphoblastic Leukemia
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Relapsed or Refractory B-cell Acute Lymphoblastic Leukemia
1309 - 1320 of 5609
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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