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California Paid Clinical Trials
A listing of 5581 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
1285 - 1296 of 5581
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California is currently home to 5581 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 CareGLP to offer trusted access to 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
Effect of Snacks on Aging
Recruiting
The purpose of this study is to determine if daily consumption of 2 oz of pecans compared to 3.5 oz pretzel snacks for 12 weeks will 1) contribute to the body's ability to protect itself from oxidative damage (caused by oxygen radicals created by ultraviolet (UV) B light) by evaluating skin resistance to UV light irritation, skin fats/oils degradation and "rusting", and oxidative damage to the skin genes; and 2) explore the mechanisms of how snack consumption may affect aging by analyzing blood... Read More
Gender:
FEMALE
Ages:
Between 55 years and 75 years
Trial Updated:
05/21/2025
Locations: UCLA Center for Human Nutrition, Los Angeles, California
Conditions: Aging
A Weight Loss Study Evaluating Subcutaneous Treatment With AZD9550 and AZD6234 in Combination Against Placebo or Each of the Drugs Alone
Recruiting
The purpose of this study is to determine whether treatment with AZD9550 when given in combination with AZD6234 as once weekly subcutaneous (SC) injections is superior to placebo or either agent administered as monotherapy for weight loss in participants living with obesity or overweight with at least one weight-related co-morbidity.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
05/21/2025
Locations: Research Site, Cerritos, California
Conditions: Obesity or Overweight
A Study of Navenibart in Participants With Hereditary Angioedema
Recruiting
This is a Phase 3 multicenter, randomized, double-blind, placebo-controlled clinical trial evaluating the safety and efficacy of subcutaneous administration of navenibart in adult and adolescent participants with type 1 or type 2 hereditary angioedema (HAE). The goal of this clinical trial is to evaluate the efficacy and safety of navenibart compared to placebo in preventing HAE attacks in participants with HAE.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
05/21/2025
Locations: Site 4, Santa Monica, California
Conditions: Hereditary Angioedema (HAE)
A Study to Assess Adverse Events and Effectiveness of Gel Stent (XEN63) Implantation Using Ab Interno and Ab Externo Approaches in Adult Participants With Glaucoma
Recruiting
Glaucoma is the second most common cause of blindness in the world, second only to cataracts. This study will assess how safe and effective a glaucoma gel stent is when implanted using the ab interno (inside the eye) and ab externo (outside the eye) approach. Adverse events and intraocular pressure will be assessed.
XEN63 is an investigational device for the treatment of intraocular pressure (IOP) in patients with glaucoma when both medical and conventional surgical treatments have failed (for... Read More
Gender:
ALL
Ages:
45 years and above
Trial Updated:
05/21/2025
Locations: LA Glaucoma Group /ID# 268444, Culver City, California
Conditions: Primary Open Angle Glaucoma
A Study to Assess the Efficacy and Safety of Induction and Maintenance Therapy With RO7790121 in Participants With Moderately to Severely Active Crohn's Disease
Recruiting
This Phase III, multicenter, double-blind, placebo-controlled treat-through study will evaluate the efficacy and safety of induction and maintenance therapy with RO7790121 in participants with moderately to severely active Crohn's disease (CD).
Gender:
ALL
Ages:
Between 16 years and 80 years
Trial Updated:
05/21/2025
Locations: Valley View Internal Medicine, Garden Grove, California
Conditions: Moderately to Severely Active Crohns Disease
National Program to Overcome Pelvic Pain studY (POPPY)
Recruiting
A randomized, parallel-group, investigator-blinded, comparative effectiveness trial of a fully remote, videoconference-based pelvic floor yoga program versus a physical conditioning program for women with chronic pelvic pain syndrome.
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
05/21/2025
Locations: University of California San Francisco, San Francisco, California
Conditions: Chronic Pelvic Pain Syndrome (CPPS), Chronic Pelvic Pain Syndrome, Chronic Pelvic Pain
A Study of CREXONT (Carbidopa and Levodopa) Extended-Release Capsules in Participants With Parkinson's Disease
Recruiting
The primary purpose of this study is to evaluate efficacy and safety of CREXONT under real world conditions in participants with Parkinson disease (PD).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/21/2025
Locations: Parkinson's Research Centers of America - Orange County, Aliso Viejo, California
Conditions: Parkinson Disease
A Study to Investigate Changes in Symptoms in Adult Participants With Chronic Rhinosinusitis With Nasal Polyposis Initiating Treatment With Tezepelumab
Recruiting
The main objective of this study is to evaluate treatment outcomes of tezepelumab among participants with physician-determined surgery-eligible CRSwNP, with or without asthma.
Study details include:
1. The study duration will be up to 40 weeks.
2. The treatment duration will be up to 24 weeks.
3. The visit frequency will be once every 4 weeks (Q4W).
Gender:
ALL
Ages:
Between 18 years and 130 years
Trial Updated:
05/21/2025
Locations: Research Site, Newport Beach, California
Conditions: Chronic Rhinosinusitis With Nasal Polyps
INJECTABLE COLD ENERGY THERAPY FOR THE MANAGEMENT OF CHRONIC PAIN ASSOCIATED WITH OSTEOARTHRITIS OF THE KNEE
Recruiting
The goal of this clinical trial is to evaluate the effectiveness of Neural Ice for pain management associated with knee osteoarthritis in adults aged 22-80 years. Participants will attend study visits and complete subject diaries. Participants will be followed for 6 months after study procedure.
Gender:
ALL
Ages:
Between 22 years and 80 years
Trial Updated:
05/21/2025
Locations: Marin Health, Larkspur, California
Conditions: Osteoarthritis (OA) of the Knee
Safety and Effectiveness of the Akura Thrombectomy System for Use in the Removal of Emboli From the Pulmonary Arteries in Treating Acute Pulmonary Embolism (PE)
Recruiting
This study is a prospective, single-arm, interventional, multicenter study to evaluate the safety and effectiveness of percutaneous mechanical thrombectomy using the Akura Thrombectomy System in subjects with acute pulmonary embolism (PE).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/21/2025
Locations: Los Robles Regional Medical Center, Thousand Oaks, California
Conditions: Pulmonary Embolism Acute
Frequency of Selected Single Nucleotide Polymorphisms in Huntington Disease Gene Expansion Carriers
Recruiting
For participation in this epidemiological study, a single-day visit at the study site is required. Participants will be recruited from Huntington Disease clinics, and they will be asked to answer questions regarding their demographics, including sex, age, race and ethnicity, and their medical and medication history. At the end of the visit, a blood sample will be drawn to allow testing with a sequencing assay that is specifically designed for phasing single nucleotide polymorphisms (SNPs) on the... Read More
Gender:
ALL
Ages:
Between 25 years and 60 years
Trial Updated:
05/21/2025
Locations: University of California San Diego, La Jolla, California
Conditions: Huntington Disease
A Study of the Efficacy and Safety of Belimumab in Adults With Interstitial Lung Disease Associated With Connective Tissue Disease
Recruiting
Interstitial lung disease (ILD) is a lung condition resulting in inflammation and stiffening of the lung, often associated with connective tissue diseases (CTDs). ILD causes reduction in lung volume, shortness of breath, cough and fatigue therefore has high impact on quality of life and is also the leading cause of death in participants with these conditions. The study will assess whether treatment of CTD-ILD participants with belimumab in addition to standard therapy will result in the stabiliz... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/21/2025
Locations: GSK Investigational Site, Los Angeles, California
Conditions: Lung Diseases, Interstitial
1285 - 1296 of 5581
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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