Search
California Paid Clinical Trials
A listing of 5591 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
1261 - 1272 of 5591
Match to Clinical Trials
Access to cutting-edge treatments
Latest clinical trials
Find trials in your area
Search by Name
Filter by Condition
Filter by Location
Filter by Age
Filter by Type
Gender
Type of Study
Clinical Trial Phase
Popular Cities
California is currently home to 5591 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
JNJ-90301900 (NBTXR3) Activated by Radiotherapy With or Without Cetuximab in LA-HNSCC
Recruiting
This is a global, open-label, randomized, 2-arm, Investigator's choice Phase 3 (Pivotal Stage) study to investigate the efficacy and safety of JNJ-90301900 (NBTXR3) / radiation therapy (RT)±cetuximab versus RT±cetuximab in treatment-naïve, platinum-ineligible, elderly participants with locally advanced head and neck squamous cell carcinoma (LA-HNSCC).
Gender:
ALL
Ages:
60 years and above
Trial Updated:
05/22/2025
Locations: City of Hope, Duarte, California
Conditions: Locally Advanced Head and Neck Squamous Cell Carcinoma, Aged
The Effect of Diet and Exercise on ImmuNotherapy and the Microbiome (EDEN)
Recruiting
Background:
The gut microbiome is made up microorganisms. These include the good and bad bacteria that live in the digestive tract. Changes in the gut microbiome have been linked to the development of cancer. Researchers want to learn more about the effects of modulating the microbiome with diet and exercise.
Objective:
To see if nutritional intake and physical activity change the gut microbiome in people with melanoma.
Eligibility:
Adults age 18 and older with previously untreated melanoma... Read More
Gender:
ALL
Ages:
Between 18 years and 120 years
Trial Updated:
05/22/2025
Locations: Loma Linda University, Loma Linda, California
Conditions: Melanoma
A Phase 1/2 Study of Bleximenib in Participants With Acute Leukemia
Recruiting
The purpose of this study is to determine the recommended Phase 2 dose(s) (RP2D\[s\]) of bleximenib in phase 1 (Part 1 \[Dose Escalation\] and to determine the safety and tolerability at RP2D in Phase 1 Part 2 (Dose expansion). The purpose of the Phase 2 part of the study is to evaluate the efficacy of bleximenib at the RP2D.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
05/22/2025
Locations: City of Hope, Duarte, California
Conditions: Acute Leukemias, Acute Myeloid Leukemia, Acute Lymphoblastic Leukemia
A Safety, Tolerability, and Efficacy Study of VX-880 in Participants With Type 1 Diabetes
Recruiting
This study will evaluate the safety, tolerability and efficacy of VX-880 infusion in participants with Type 1 diabetes (T1D) and impaired awareness of hypoglycemia (IAH) and severe hypoglycemia.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
05/22/2025
Locations: City of Hope, Duarte, California
Conditions: Diabetes Mellitus, Type 1, Impaired Hypoglycemic Awareness, Severe Hypoglycemia
GDNF Gene Therapy for Multiple System Atrophy
Recruiting
The objective of this randomized, double-blinded, placebo-controlled Phase 1 investigation is to evaluate the safety and potential clinical effect of AAV2-GDNF delivered to the putamen in subjects with either a possible or probable diagnosis of Multiple System Atrophy.
Gender:
ALL
Ages:
Between 35 years and 75 years
Trial Updated:
05/22/2025
Locations: University of California Irvine, Irvine, California
Conditions: Multiple System Atrophy
Testing What Happens When an Immunotherapy Drug (Pembrolizumab) is Given by Itself Compared to the Usual Treatment of Chemotherapy With Radiation After Surgery for Recurrent Head and Neck Squamous Cell Carcinoma
Recruiting
This phase II trial studies the effect of pembrolizumab alone compared to the usual approach (chemotherapy \[cisplatin and carboplatin\] plus radiation therapy) after surgery in treating patients with head and neck squamous cell carcinoma that has come back (recurrent) or patients with a second head and neck cancer that is not from metastasis (primary). Radiation therapy uses high energy radiation or protons to kill tumor cells and shrink tumors. Cisplatin is in a class of medications known as p... Read More
Gender:
ALL
Ages:
Between 18 years and 79 years
Trial Updated:
05/22/2025
Locations: Kaiser Permanente-Anaheim, Anaheim, California
Conditions: Recurrent Head and Neck Squamous Cell Carcinoma, Recurrent Hypopharyngeal Squamous Cell Carcinoma, Recurrent Laryngeal Squamous Cell Carcinoma, Recurrent Oral Cavity Squamous Cell Carcinoma, Recurrent Oropharyngeal Squamous Cell Carcinoma
A Study of JNJ-69086420, an Actinium-225-Labeled Antibody Targeting Human Kallikrein-2 (hK2) for Advanced Prostate Cancer
Recruiting
The purpose of this study is to determine the recommended Phase 2 dose(s) (RP2D\[s\]) of JNJ-69086420 in Part 1 (Dose Escalation), to determine safety and preliminary signs of clinical activity at the RP2D(s) in Part 2 (Dose Expansion), to determine safety of JNJ-69086420 at the RP2D(s) as a combination therapy in Part 3 (combination therapy) and to determine safety of JNJ-69086420 at the RP2D(s) in participants with metastatic hormone-sensitive prostate cancer (mHSPC) in Part 4.
Gender:
MALE
Ages:
18 years and above
Trial Updated:
05/22/2025
Locations: City of Hope, Duarte, California
Conditions: Prostatic Neoplasms, Adenocarcinoma
A Study of Talquetamab in Participants With Relapsed or Refractory Multiple Myeloma
Recruiting
The purpose of this study is to evaluate the efficacy and safety of talquetamab in participants with relapsed or refractory multiple myeloma at the recommended Phase 2 dose(s) (RP2Ds) (Part 3).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/22/2025
Locations: City of Hope, Duarte, California
Conditions: Hematological Malignancies
Study of Zifibancimig in Participants With Neovascular Age-Related Macular Degeneration
Recruiting
This is a first in-human study to investigate the safety, tolerability and efficacy of zifibancimig administered through intravitreal (IVT) injections and via the Port Delivery (PD) implant in participants with neovascular age-related macular degeneration (nAMD)
Gender:
ALL
Ages:
50 years and above
Trial Updated:
05/22/2025
Locations: The Retina Partners, Encino, California
Conditions: Macular Degeneration
A 12-Month Study of Lasmiditan (LY573144) Treatment in Children Aged 6 to 17 With Migraine
Recruiting
The reason for this 12-month, open-label study is to see if the study drug lasmiditan is safe and effective for the intermittent acute treatment of migraine in children aged 6 to 17. The study will last about 12 months and may include up to 7 visits.
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
05/22/2025
Locations: Core Healthcare Group, Cerritos, California
Conditions: Migraine
A Study of Lasmiditan (LY573144) Treatment in Children Aged 6 to 17 With Migraine
Recruiting
The reason for this study is to see if lasmiditan is safe and effective in children aged 6 to 17 with migraine. The study will last up to 20 weeks and may include up to 4 visits.
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
05/22/2025
Locations: Core Healthcare Group, Cerritos, California
Conditions: Migraine
d-Limonene +Radiation +PlatinumBasedChemo for Xerostomia Prevention in LocallyAdvanced HNSCC
Recruiting
This study explores the safety of d-limonene, a commercially-available dietary supplement (food) as a potential therapeutic for the severe dry mouth (xerostomia) experienced by patients with head and neck cancer as a side effect of their anti-cancer treatment.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/22/2025
Locations: Stanford University, Stanford, California
Conditions: Xerostomia
1261 - 1272 of 5591
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.
Search Clinical Trials in California by Condition
See All Conditions