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Healthy Paid Clinical Trials in California
A listing of 86 Healthy clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
13 - 24 of 86
The state of California currently has 86 active clinical trials seeking participants for Healthy research studies. These trials are conducted in various cities, including Los Angeles, San Francisco, San Diego and Sacramento.
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.
Conditions:
Healthy
Healthy Volunteer Study
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
COVID Vaccine Age 50-64 Study (Up to $710 Total Compensation)
Recruiting
Multiple COVID-19 investigational vaccine studies are now enrolling participants (Age 50-64), with appointments available. Participants who qualify may receive up to $710 in total compensation.
If eligible, participants may be matched to one of the current COVID-19 vaccine studies. Should you express interest, the study team will contact you directly to provide further details and answer any questions about study procedures, time commitment, potential risks/benefits, and compensation.
If eligible, participants may be matched to one of the current COVID-19 vaccine studies. Should you express interest, the study team will contact you directly to provide further details and answer any questions about study procedures, time commitment, potential risks/benefits, and compensation.
Conditions:
COVID Vaccine (Age 50-64)
COVID
COVID-19
COVID19
COVID 19
Featured Trial
Vaccine (18+) Clinical Study
Recruiting
We are seeking healthy individuals aged 18 and above who are interested in participating in a vaccine clinical trial.
Conditions:
Vaccine (18+)
Healthy
Healthy Individuals
Healthy Volunteers
Healthy Subjects
Featured Trial
Vaccine (65+) Clinical Study
Recruiting
We are seeking healthy participants aged 65 and above who are interested in participating in a vaccine clinical trial.
Conditions:
Vaccine (65+)
Healthy
Older Adults
Seniors
Healthy Volunteers
Featured Trial
Adult Vaccine Clinical Trial
Recruiting
Looking to boost your immunity?
You may be interested in participating in an Adult Vaccine Clinical Trial.
The Adult Vaccine Research Studies are looking for adults to evaluate the effectiveness of a potential vaccine.
You may be interested in participating in an Adult Vaccine Clinical Trial.
The Adult Vaccine Research Studies are looking for adults to evaluate the effectiveness of a potential vaccine.
Conditions:
Healthy
Healthy Volunteers
Healthy Subjects
Healthy Volunteer
Healthy Participants
Study to Assess the Safety, Tolerability, PK and PD of ABX1100
Recruiting
Study ABX1100-1001 is a first-in-human (FIH), phase 1 study to assess the safety, tolerability, pharmacokinetics and pharmacodynamics of a single ascending dose (SAD) and multiple doses (MD) of ABX1100 administered intravenously to healthy participants and patients with LOPD.
* Part A features a SAD study with a double-blind, placebo-controlled, randomized design in NHVs involving 3 cohorts (A1-A3). This Part also includes a single dose, open-labeled cohort (A4) in NHVs which will commence afte... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: UCI, Orange, California
Conditions: Healthy, Late Onset Pompe Disease
A Study of LY3971297 in Healthy Participants
Recruiting
The purpose of this study is to measure side effects of LY3971297 injection administered under the skin in healthy participants and obese participants with high blood pressure (BP). Blood tests will be performed to check how much LY3971297 gets into the bloodstream and how long it takes the body to eliminate it. This is a 7-part study. The study duration will be approximately 60 days for Parts A and F, and approximately 90 days for Parts B, C, D, E, and G.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
07/22/2025
Locations: CenExel ACT, Anaheim, California
Conditions: Healthy, Obesity, Hypertension
A Study to Assess the Bioavailability of Risankizumab Following Subcutaneous Administration With Prefilled Pen Relative to a Prefilled Syringe in Healthy Adult Participants
Recruiting
This study will assess the pharmacokinetics, relative bioavailability, immunogenicity, safety, and tolerability of risankizumab following subcutaneous (SC) administration with a prefilled pen or a prefilled syringe in healthy adult participants.
Gender:
ALL
Ages:
Between 18 years and 60 years
Trial Updated:
07/17/2025
Locations: Altasciences Clinical Los Angeles /ID# 276446, Cypress, California
Conditions: Healthy Volunteers
A First-in-human Study to Evaluate the Safety and Tolerability of HB-2121 as a Diagnostic for Celiac Disease
Recruiting
The goal of this clinical trial is to learn about the safety of a single dose of HB-2121 in adults. It will also look at how the body processes the drug. The main questions it aims to answer are:
* What side effects do participants have after receiving HB-2121?
* How much HB-2121 is in the blood over time?
Researchers will follow participants for 30 days after receiving HB-2121 to understand how the drug behaves in the body and how safe it is.
Participants will:
* Receive one oral dose of HB... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/17/2025
Locations: Stanford University, Stanford, California
Conditions: Celiac Disease, Healthy
Personalized Health Self-Management Training for Colorectal Cancer Survivors
Recruiting
This is a Phase 2 prospective, randomized, controlled, double-arm study to assess personalized self-management training (PSMT) intervention efficacy and patient experiences compared to standardized self-management training (SSMT). A total of 120 colorectal cancer (CRC) patients will be enrolled and randomized 1:1 to complete a 6-week self-management training program (either PSMT or SSMT) to be carried out by licensed occupational therapists with doctoral training.
This study aims to examine whe... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California +1 locations
Conditions: Colorectal Cancer, Healthy Lifestyle, Behavior, Health, Health Behavior
Radiocaine Safety Study In Healthy Human Subjects
Recruiting
This is a Phase 1, single-center, open-label study evaluating the safety, biodistribution, and radiation dosimetry of Radiocaine™, an investigational fluorine-18-labeled PET radiotracer designed to bind voltage-gated sodium channels in pain-related peripheral nerves. The study will enroll healthy adult volunteers and aims to inform future clinical development in pain imaging. Radiocaine™ is being developed as a potential imaging biomarker for the localization and quantification of pain.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: Stanford University School of Medicine, Stanford, California
Conditions: Healthy Subjects
A Study of LY3537031 in Overweight, Obese, and Healthy Participants
Recruiting
This is a 4-part study that includes a Part A, Part B, Part C, and Part D. Parts A and D will study the safety and tolerability of the study drug known as LY3537031 in participants who are overweight and obese. Part B and Part C will study the safety and tolerability of LY3537031 in healthy participants. Part C will contain only Japanese and Chinese healthy participants.
Blood tests will be performed to check how much LY3537031 gets into the bloodstream and how long it takes the body to elimina... Read More
Gender:
ALL
Ages:
Between 22 years and 65 years
Trial Updated:
07/14/2025
Locations: Collaborative Neuroscience Research, LLC, Los Alamitos, California
Conditions: Healthy, Obesity
ImmunoBoost: The Lymphatic Osteopathic Manipulative Treatment Protocol Study
Recruiting
The goal of this clinical trial is to determine whether osteopathic manipulative treatment (OMT) enhances immune system readiness in healthy adults compared to exercise or sham light treatment. Specifically, the goal of this study is to assess circulating immune cells and signaling molecules in the blood in response to these various treatments.
It aims to compare: Complete Blood Counts (CBC) and blood immune signaling molecule levels in healthy adults in response to OMT, sham light touch, and e... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/14/2025
Locations: Western University of Health Sciences, Pomona, California +1 locations
Conditions: Healthy
A Randomized, Double Blind, Placebo Controlled, Clinical Study to Examine the Benefits of an Oral Product in Panelists With Menopausal Symptoms Including Vasomotor Symptoms (VMS).
Recruiting
Randomized, Double-Blind, Placebo-Controlled, Single-Center Clinical Study with a Run-in Baseline, Daily Diary Log, and Validated Questionnaires (Greene GCS) with Oral Dietary Supplement
Gender:
FEMALE
Ages:
Between 40 years and 65 years
Trial Updated:
07/11/2025
Locations: San Francisco Research Institute, San Francisco, California
Conditions: Healthy
Collection of Immunology Specimens From Patients With Cancer or Blood Disorders, and Healthy Volunteers
Recruiting
This research trial collects and stores blood, tissue, and bone marrow specimens from patients with cancer or blood disorders, and healthy volunteers to study the immune system in a variety of different types of experiments, as well as associated clinical data as appropriate, focused on understanding mechanisms of immunotherapy.
Gender:
ALL
Ages:
19 years and above
Trial Updated:
07/10/2025
Locations: USC / Norris Comprehensive Cancer Center, Los Angeles, California
Conditions: Healthy Subject, Hematologic and Lymphocytic Disorder, Hematopoietic and Lymphoid Cell Neoplasm, Immune System Disorder, Malignant Neoplasm
A Study to Assess the Time to Onset of Action of Staccato Alprazolam Versus Midazolam and Diazepam in Healthy Participants
Recruiting
The purpose of this study is to estimate the difference in the time to onset of action between Staccato alprazolam and intravenous (iv) midazolam using changes in power in the combined spindle and β1 frequency bands in the qEEG (quantitative electroencephalogram).
Gender:
ALL
Ages:
Between 20 years and 55 years
Trial Updated:
07/10/2025
Locations: Up0127 1001, Glendale, California
Conditions: Healthy Participants
Pilot Study of the Entarik System With Advanced Functionality in Health Adults
Recruiting
In this single-site study, data will be recorded during nasogastric or orogastric placement (and post-pyloric placement) and removal of the Entarik Feeding Tube. Data will also be collected prior to, during, and following the delivery of a meal through the feeding tube.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/08/2025
Locations: Gravitas Medical, Inc., Berkeley, California
Conditions: Healthy Adults
13 - 24 of 86
