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California Paid Clinical Trials
A listing of 5592 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
1597 - 1608 of 5592
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California is currently home to 5592 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 Offer
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Recruiting
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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
Screening Study for Participants With Malignant Tumors
Recruiting
The study objective is to determine the biomarker status of a participant's tumor tissue and use that status to determine eligibility for a linked Roche clinical trial.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/03/2025
Locations: Southern California Kaiser Permanente, San Diego, California
Conditions: Solid Tumors
OssDsign® Spine Registry Study ("Propel")
Recruiting
The purpose of this multi-center, prospective, observational registry is to gather information on the clinical outcomes and real-world use of commercially available bone graft substitutes manufactured by OssDsign® AB, in patients who require spine fusion.
Gender:
ALL
Ages:
21 years and above
Trial Updated:
06/03/2025
Locations: Community Health Partners Neuroscience, Fresno, California
Conditions: Degenerative Disc Disease, Spinal Stenosis
Study to Assess the Efficacy and Safety of Atuliflapon in Moderate-to-Severe Uncontrolled Asthma
Recruiting
This is a randomised, placebo-controlled, double-blind study to assess the efficacy and safety of Atuliflapon administered once daily over a 12-week treatment period to adult participants with moderate to severe uncontrolled asthma.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
06/03/2025
Locations: Research Site, Bakersfield, California
Conditions: Asthma
A Study Evaluating the Efficacy and Safety of Multiple Therapies in Cohorts of Participants With Locally Advanced, Unresectable, Stage III Non-Small Cell Lung Cancer (NSCLC)
Recruiting
This study will evaluate the efficacy and safety of multiple therapies in participants with locally advanced, unresectable, Stage III NSCLC with eligible biomarker status as determined by Version 8 of the American Joint Committee on Cancer/Union for International Cancer Control NSCLC staging system.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/03/2025
Locations: Southern California Kaiser Permanente, Los Angeles, California
Conditions: Non-Small Cell Lung Cancer
Efficacy and Safety of Remibrutinib Compared to Teriflunomide in Participants With Relapsing Multiple Sclerosis (RMS)
Recruiting
To compare the efficacy and safety of remibrutinib versus teriflunomide in patients with relapsing multiple sclerosis (RMS)
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
06/03/2025
Locations: Vladimir Royter MD APMC, Hanford, California
Conditions: Relapsing Multiple Sclerosis
Efficacy and Safety of Remibrutinib Compared to Teriflunomide in Participants With Relapsing Multiple Sclerosis (RMS)
Recruiting
To compare the efficacy and safety of remibrutinib versus teriflunomide in patients with relapsing multiple sclerosis (RMS)
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
06/03/2025
Locations: The Research and Education Inst. of Alta Bates Summit Med. Grp, Berkeley, California
Conditions: Relapsing Multiple Sclerosis
A Study to Evaluate How Safe Pozelimab + Cemdisiran Combination Therapy is and How Well it Works in Adult Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH) Who Have Not Recently Received or Have Not Received Complement Inhibitor Treatment
Recruiting
This study is researching a clinical treatment combination with two experimental drugs called pozelimab and cemdisiran. The study is focused on people with paroxysmal nocturnal hemoglobinuria (PNH). The aim of the study is to see how safe and effective the pozelimab + cemdisiran combination is for people with PNH and how the combination compares with 2 existing treatments: ravulizumab and eculizumab.
The pozelimab + cemdisiran combination may be referred to as "study drugs". Ravulizumab and ecu... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/03/2025
Locations: The Oncology Institute of Hope & Innovation, Whittier, California
Conditions: Paroxysmal Nocturnal Hemoglobinuria
Neuroprotection With N-acetyl Cysteine for Patients With Progressive Multiple Sclerosis
Recruiting
This study evaluates the effectiveness of N-acetyl cysteine (NAC) in the treatment of progressive multiple sclerosis. Half of the patients will receive NAC, while the other half will receive a placebo.
Gender:
ALL
Ages:
Between 40 years and 70 years
Trial Updated:
06/03/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Multiple Sclerosis, Multiple Sclerosis, Primary Progressive, Multiple Sclerosis, Secondary Progressive
BOXR1030 T Cells in Subjects With Advanced GPC3-Positive Solid Tumors
Recruiting
This is a first-in-human (FIH), Phase 1/2, open-label, multicenter study to assess safety and determine the recommended Phase 2 dose (RP2D) of BOXR1030 administration after lymphodepleting chemotherapy (LD chemotherapy) in subjects with glypican-3 positive (GPC3+) advanced solid tumors.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
06/03/2025
Locations: Hoag Hospital Newport Beach, Newport Beach, California
Conditions: Hepatocellular Carcinoma, Squamous Cell Carcinoma of the Lung, Merkel Cell Carcinoma, Myxoid/Round Cell Liposarcoma
A Multicenter Study of Continued Current Therapy vs Transition to Ofatumumab After Neurofilament (NfL) Elevation
Recruiting
This study will evaluate if relapsing-remitting MS patients that have not had a relapse in the past year would benefit from a switch to ofatumumab versus staying on their continued current therapy. This study will also look at whether an elevated serum neurofilament light (NfL) level predicts enhanced benefit from a switch to ofatumumab.
Gender:
ALL
Ages:
Between 18 years and 50 years
Trial Updated:
06/03/2025
Locations: University of California at Los Angeles, Torrance, California
Conditions: Relapsing-Remitting Multiple Sclerosis
Study to Evaluate Safety and Efficacy of Different PANZYGA Dose Regimens in Pediatric Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP) Patients
Recruiting
Safety and Efficacy of Different PANZYGA Dose Regimens in Pediatric Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP) Patients
Gender:
ALL
Ages:
Between 2 years and 17 years
Trial Updated:
06/03/2025
Locations: Octapharma Research Site, Orange, California
Conditions: Pediatric Chronic Inflammatory Demyelinating Polyneuropathy
ATEMPT 2.0: Adjuvant T-DM1 vs TH
Recruiting
This research study is studying how well newly diagnosed breast cancer that has tested positive for a protein called HER2 responds using one of two different combination of HER2-directed therapies as a treatment after surgery.
The name of the study drugs involved are:
* Trastuzumab-emtansine (T-DM1, Kadcyla)
* Trastuzumab SC (Herceptin Hylecta)
* Paclitaxel
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/03/2025
Locations: UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, California
Conditions: Breast Cancer, HER2-positive Breast Cancer
1597 - 1608 of 5592
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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