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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.
4093 - 4104 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
Reducing Suicide Risk in Older Veterans Using Problem Solving Therapy
Recruiting
Suicide is a national crisis, especially among older Veterans for whom evidence-based suicide prevention efforts are lacking. This proposal responds to the national priority to develop and improve interventions for suicide prevention, with a focus on at-risk older Veterans. The randomized control trial will compare VA usual care, which is suicide safety planning, with brief Problem Solving Therapy and suicide safety planning. This study uses Problem Solving Therapy because it has support from ou... Read More
Gender:
ALL
Ages:
55 years and above
Trial Updated:
01/22/2025
Locations: VA Palo Alto Health Care System, Palo Alto, CA, Palo Alto, California
Conditions: Suicidal Ideation, Depressive Disorder, Anxiety Disorders, Post Traumatic Stress Disorder
Qudexy XR for the Prevention of Migraine in Children 6 to 11 Years Old
Recruiting
A Phase 4 study to evaluate Qudexy XR for the prevention of migraine in children 6 to 11 years of age.
Gender:
ALL
Ages:
Between 6 years and 11 years
Trial Updated:
01/22/2025
Locations: Upsher-Smith Clinical Trial Site #15, La Jolla, California
Conditions: Migraine Disorders
Pulsed Electromagnetic Field (PEMF) Therapy for Post-operative Pain Following Orthopedic Surgery
Recruiting
The primary objective of this study is to prospectively determine, at 10 days after orthopedic shoulder or knee surgery, if pulsed electromagnetic field (PEMF) therapy is beneficial in reducing patient-reported post-operative pain, as measured by visual analog scale (VAS). The amount of pain medication taken daily and the physical function outcome scores after surgery and PEMF treatment will also be measured.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
01/22/2025
Locations: Stanford University, Redwood City, California
Conditions: Knee Injuries, Shoulder Injuries, Pain, Postoperative
Radial Vs. State-Of-The-Art Femoral Access for Bleeding and Access Site Complication Reduction in Cardiac Catheterization (REBIRTH)
Recruiting
This is a phase IV, prospective, open label, randomized-controlled study that will compare radial access with state-of-the-art femoral access in patients without ST-segment elevation acute myocardial infarction undergoing cardiac catheterization. Subjects will be randomized 1:1 into 2 treatment groups: radial access and state-of-the-art femoral access. Randomization will be performed in blocks of 50 per site. Similarly, a second sub-randomization will be performed in the femoral access group int... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
01/22/2025
Locations: San Francisco VA Medical Center, San Francisco, California
Conditions: Patient Satisfaction, Vascular Access Complication
Study of RP1 Monotherapy and RP1 in Combination With Nivolumab
Recruiting
RPL-001-16 is a Phase 1/2, open label, dose escalation and expansion clinical study of RP1 alone and in combination with nivolumab in adult subjects with advanced and/or refractory solid tumors, to determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D), as well as to evaluate preliminary efficacy.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
01/22/2025
Locations: UC San Diego, La Jolla, California
Conditions: Cancer, Melanoma (Skin), Mismatch Repair Deficiency, Microsatellite Instability, Non-melanoma Skin Cancer, Cutaneous Melanoma, NSCLC
Pembrolizumab and Pemetrexed for Progressive Chordoma
Recruiting
Primary Objective:
1. To determine objective response rate (ORR) according to RECIST v1.1 of pembrolizumab and high-dose pemetrexed in the treatment of patients with chordoma until disease progression. The OOR will be investigator assessed.
Secondary Objectives:
1. To describe the adverse events associated with administering pembrolizumab and high-dose pemetrexed combination treatment.
2. To determine disease control rate based on imaging and overall survival.
3. To determine median PFS and P... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
01/21/2025
Locations: Providence Saint John's Health Center, Santa Monica, California
Conditions: Chordomas, Chordoma
Studying Solriamfetol Modulation of TAAR-1, Dopamine, and Norepinephrine in Shift Work Disorder (SUSTAIN)
Recruiting
SUSTAIN (Studying Solriamfetol Modulation of TAAR-1, Dopamine, and Norepinephrine in Shift Work Disorder) is a Phase 3, multi-center, randomized, double-blind, placebo-controlled, parallel- group trial to assess the efficacy and safety of solriamfetol in adults with excessive sleepiness associated with shift work disorder (SWD).
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
01/21/2025
Locations: Clinical Research Site, Cerritos, California
Conditions: Excessive Sleepiness, Shift-work Disorder
Elucidating TAAR-1, Dopamine, and Norepinephrine in Binge Eating Disorder Using Solriamfetol
Recruiting
ENGAGE (Elucidating TAAR-1, Dopamine, and Norepinephrine in Binge Eating Disorder Using Solriamfetol) is a Phase 3, randomized, double-blind, placebo-controlled, multicenter trial to assess the efficacy and safety of solriamfetol for the treatment of binge eating disorder (BED) in adults.
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
01/21/2025
Locations: Clinical Research Site, Encino, California
Conditions: Binge-Eating Disorder
A Study to Evaluate the Efficacy of AXS-05 Compared to Bupropion in Preventing the Relapse of Depressive Symptoms
Recruiting
This is a randomized, double-blind, active-controlled, multi-center study to evaluate the efficacy of AXS-05, compared to bupropion, in preventing the relapse of depressive symptoms in subjects with major depressive disorder (MDD) who have responded to treatment with AXS-05.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
01/21/2025
Locations: Clinical Research Site, Bellflower, California
Conditions: Major Depressive Disorder
Study of Lurbinectedin Monotherapy in Pediatric and Young Adult Participants With Relapsed/Refractory Ewing Sarcoma
Recruiting
This study is conducted in two phases. The phase 1 portion of the study evaluates the safety, tolerability, pharmacokinetics (PK), recommended phase 2 dose (RP2D), and effectiveness of lurbinectedin monotherapy in pediatric participants with previously treated solid tumors. This is followed by the phase 2 portion, to further assess the effectiveness and safety in pediatric and young adult participants with recurrent/refractory Ewing sarcoma.
Gender:
ALL
Ages:
Between 2 years and 30 years
Trial Updated:
01/21/2025
Locations: Children's Hospital Los Angeles, Los Angeles, California
Conditions: Refractory Ewing Sarcoma, Relapsed Ewing Sarcoma, Ewing Sarcoma
RTMS for Military TBI-related Depression
Recruiting
The purpose of this study is to investigate the efficacy, safety, and tolerability of two dorsolateral prefrontal cortex (DLPFC) repetitive transcranial magnetic stimulation (rTMS) protocols to alleviate symptoms of depression in United States (U.S.) military service members and veterans with a history of concussion/mild traumatic brain injury (TBI).
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
01/21/2025
Locations: VA Palo Alto Health Care System, Palo Alto, California
Conditions: Depressive Symptoms, Mild Traumatic Brain Injury, Concussion
"Embolization Before Ablation of Renal Cell Carcinoma (EMBARC)"
Recruiting
Multi-center, single arm, prospective trial to estimate safety, feasibility, technical outcomes, and clinical outcomes of percutaneous cryoablation with neo-adjuvant trans-arterial embolization of the tumor in patients with T1b renal cell carcinoma. Continuous safety monitoring will be performed with stopping rules for patient accrual or study continuation.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
01/21/2025
Locations: Stanford Cancer Institute, Stanford, California
Conditions: Renal Cell Carcinoma (RCC)
4093 - 4104 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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