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California Paid Clinical Trials
A listing of 5594 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
361 - 372 of 5594
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California is currently home to 5594 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 Trial
Dilated Cardiomyopathy (DCM) Research Study
Recruiting
If you are identified as eligible for investigational genetic testing, you will be sent a saliva collection kit to your home. Once you have completed and returned your kit to Sano Genetics, your sample will be tested for a specific genetic pathway called BAG3.
Investigational genetic testing can help you better understand your body and its needs, as well as how DCM may be passed down in your family. Those who are identified as having a variant in the BAG3 gene will be referred to an upcoming clinical trial.
Investigational genetic testing can help you better understand your body and its needs, as well as how DCM may be passed down in your family. Those who are identified as having a variant in the BAG3 gene will be referred to an upcoming clinical trial.
Conditions:
Dilated Cardiomyopathy (DCM)
Cardiovascular Diseases
Cardiomyopathy
Cardiovascular Disease
Heart Failure
Featured Trial
Parkinson's Disease: Genetic Testing and Clinical Trial
Recruiting
Sano is launching a new study to understand the genetics of Parkinson’s and give researchers the data they need to better understand this condition. By participating, you will support cutting-edge research and help pave the way for future breakthroughs. You may be referred to participate in a clinical trial.
By participating in this study, you can:
- Receive a first-of-its-kind, Parkinson's genetic test at home, cost free
- Understand your eligibility for an investigational clinical trial in Parkinson's disease
- Receive notifications for future research opportunities
- Access expert, condition-specific educational materials tailored to Parkinson's disease
By participating in this study, you can:
- Receive a first-of-its-kind, Parkinson's genetic test at home, cost free
- Understand your eligibility for an investigational clinical trial in Parkinson's disease
- Receive notifications for future research opportunities
- Access expert, condition-specific educational materials tailored to Parkinson's disease
Conditions:
Parkinson's Disease
Parkinson Disease
Parkinson's Disease (PD)
Idiopathic Parkinson's Disease
Parkinsonian Disorders
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
A Study to Evaluate the Efficacy and Safety of KarXT for the Treatment of Manic Episodes in Bipolar-I Disorder (BALSAM-2)
Recruiting
This is a Phase 3, randomized, double-blind, placebo-controlled, multicenter, inpatient study in participants with bipolar disorder experiencing an acute episode of mania or mania with mixed features.
The primary objective of the study is to evaluate the efficacy of KarXT compared to placebo in treating symptoms of mania during a 3-week inpatient period. The duration of the study including screening, the double-blind inpatient treatment period and safety-follow-up is no more than seven weeks.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
06/25/2025
Locations: Local Institution - 0021, Culver City, California
Conditions: Bipolar Disorder Type I With Mania or Mania With Mixed Features
A Study to Evaluate Two Dosing Regimens of Subcutaneous Nivolumab in Combination With Intravenous Ipilimumab and Chemotherapy in Participants With Previously Untreated Metastatic or Recurrent Non-Small Cell Lung Cancer (NSCLC)
Recruiting
The purpose of this study is to evaluate two dosing regimens of subcutaneous Nivolumab in combination with intravenous Ipilimumab and chemotherapy in participants with previously untreated metastatic or recurrent Non-Small Cell Lung Cancer (NSCLC)
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/25/2025
Locations: Local Institution - 0062, Los Angeles, California
Conditions: Non-Small Cell Lung Cancer
A Study to Evaluate the Clinical Outcomes of Efgartigimod PH20 SC in Adults With New-onset Generalized Myasthenia Gravis (gMG)
Recruiting
The main purpose of this study is to measure how well adults with new-onset gMG (which means they've had generalized disease signs and/or symptoms for less than 1 year) respond to treatment with efgartigimod PH20 SC. The study consists of a treatment period of 51 weeks. The study duration for each participant will be approximately 58 weeks.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/25/2025
Locations: Samir Macwan, M.D., Inc. (S corporation), Rancho Mirage, California
Conditions: New Onset Generalized Myasthenia Gravis (gMG)
Study of Olomorasib (LY3537982) in Combination With Standard of Care in Participants With Resected or Unresectable KRAS G12C-mutant Non-Small Cell Lung Cancer
Recruiting
The main purpose of this study is to assess if olomorasib in combination with pembrolizumab is more effective than the pembrolizumab and placebo combination in part A in participants with resected KRAS G12C-mutant NSCLC and to assess if olomorasib in combination with durvalumab is more effective than the durvalumab and placebo combination in part B in participants with unresectable KRAS G12C-mutant non-small cell lung cancer. The study may last up to 3 years for each participant.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/25/2025
Locations: UCLA Hematology/Oncology - Santa Monica, Los Angeles, California
Conditions: Carcinoma, Non-Small-Cell Lung
A Study to Investigate the Efficacy and Safety of Tezepelumab in Adult Participants With Moderate to Very Severe COPD
Recruiting
A Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel Group, Phase 3 Study to Evaluate the Efficacy and Safety of Tezepelumab in Adults with Moderate to Very Severe Chronic Obstructive Pulmonary Disease (COPD)
Gender:
ALL
Ages:
Between 40 years and 80 years
Trial Updated:
06/25/2025
Locations: Research Site, Newport Beach, California
Conditions: Chronic Obstructive Pulmonary Disease (COPD)
A Study to Investigate the Efficacy and Safety of Tezepelumab in Adult Participants With Moderate to Very Severe COPD (D5241C00007)
Recruiting
A Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel Group, Phase 3 Study to Evaluate the Efficacy and Safety of Tezepelumab in Adults with Moderate to Very Severe Chronic Obstructive Pulmonary Disease (COPD)
Gender:
ALL
Ages:
Between 40 years and 80 years
Trial Updated:
06/25/2025
Locations: Research Site, Los Angeles, California
Conditions: Chronic Obstructive Pulmonary Disease (COPD)
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:
06/25/2025
Locations: Research Site, Cerritos, California
Conditions: Obesity or Overweight
Efficacy and Safety of Maridebart Cafraglutide in Adult Participants With Type 2 Diabetes Mellitus Who Have Obesity or Are Overweight
Recruiting
The primary objective of this study is to demonstrate that maridebart cafraglutide is superior to placebo for percent change in body weight.
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
06/25/2025
Locations: San Fernando Valley Health Institute, Canoga Park, California
Conditions: Type 2 Diabetes Mellitus (T2DM), Obesity, Overweight
Evaluation of Maridebart Cafraglutide in Adult Participants Without Type 2 Diabetes Mellitus Who Have Obesity or Are Overweight
Recruiting
The primary objective of this study is to demonstrate that maridebart cafraglutide is superior to placebo for percent change in body weight.
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
06/25/2025
Locations: Ark Clinical Research- Tustin, Fountain Valley, California
Conditions: Obesity
A Phase 2 in Adult Subjects With Hereditary Angioedema
Recruiting
A Phase 2 in Adult Subjects with Hereditary Angioedema
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
06/25/2025
Locations: Raffi Tachdjian, MD Inc, Santa Monica, California
Conditions: Hereditary Angioedema (HAE)
A Phase 3 Study to Assess the Efficacy, Safety, and Tolerability of Itepekimab (Anti-IL-33 mAb) in Participants With Inadequately-controlled Chronic Rhinosinusitis With Nasal Polyps
Recruiting
EFC18419 is a multinational, randomized, double-blind, placebo-controlled, parallel-group, Phase 3 study with 3 treatment groups. The purpose of the study is to evaluate the efficacy, safety and tolerability of 2 dosing regimens of itepekimab compared to placebo as add-on therapy to intranasal corticosteroids (INCS) in male and female participants with chronic rhinosinusitis with nasal polyps (CRSwNP) aged 18 years of age and older.
Study details include:
* The study duration per participant (... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/25/2025
Locations: San Diego Clinical Research Center- Site Number : 8400041, San Diego, California
Conditions: Chronic Rhinosinusitis With Nasal Polyps
A Phase 3 Study to Assess the Efficacy, Safety, and Tolerability of Itepekimab (Anti-IL-33 mAb) in Participants With Inadequately-controlled Chronic Rhinosinusitis With Nasal Polyps
Recruiting
EFC18418 is a multinational, randomized, double-blind, placebo-controlled, parallel-group, Phase 3 study with 3 treatment groups. The purpose of the study is to evaluate the efficacy, safety and tolerability of 2 dosing regimens of itepekimab compared to placebo as add-on therapy to intranasal corticosteroids (INCS) in male and female participants with chronic rhinosinusitis with nasal polyps (CRSwNP) aged 18 years of age and older.
Study details include:
* The study duration per participant (... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/25/2025
Locations: Sensa Health- Site Number : 8400038, Los Angeles, California
Conditions: Chronic Rhinosinusitis With Nasal Polyps
361 - 372 of 5594
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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