Clinical trials · California
Behavior clinical trials in California
We’re tracking 90 recruiting behavior studies with a site in California — including Phase 1/Phase 2 and Phase 2 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT07673172Enrolling by invitation
Heart Health Program for Teens and Young Adults with Autism
This trial tests a two-part program to improve heart health in people with autism who are above a healthy weight. It may help you learn ways to take better care of your heart.
Los Angeles, CaliforniaAges 9–26 - NCT07602699RecruitingPhase 2
Tirzepatide to Help People Quit Smoking
This study tests whether tirzepatide, a medication that helps with weight and blood sugar, can also help people quit smoking. You'd receive the medication plus standard quitting support (nicotine patches or gum and a quit-smoking app) over several months.
Los Angeles, CaliforniaAges 21–65 - NCT07577947Recruiting
Digital tracking to help treat pregnancy and postpartum depression
This study tests whether wearing an Apple Watch and using a smartphone app can help doctors better understand and treat depression during pregnancy and after birth. You'll receive depression treatment through the study while the app and watch track your daily patterns.
Los Angeles, CaliforniaAges 18 years+ - NCT07515742Recruiting
Youth Peer Coaches Program for Students with Discipline Issues
This study trains young people who've had school discipline problems to become peer coaches—mentors who help other students. Researchers want to see if having peers who've faced similar challenges can help improve school behavior and relationships.
Los Angeles, CaliforniaAges 10–15 - NCT07494617Recruiting
Video education for firefighters' health and safety
This trial tests whether a video-based program can help firefighters become more aware of their behaviors and risks. If you are a California firefighter, it may help you stay healthy and safe on the job.
Sacramento, CaliforniaAges 18 years+ - NCT05570734Recruiting
Study of diabetes support for Hispanic/Latino adults online
This study looks at an online (e-health) way to help adults with type 2 diabetes better follow their diabetes care plan. It targets Hispanic/Latino patients and may help improve how consistently people manage their diabetes.
Chula Vista, CaliforniaAges 18 years+ - NCT07478263Recruiting
Healthy eating trial for Latinas to prevent type 2 diabetes
This study tests a behavioral program designed to help Latinas with prediabetes improve their nutrition and eating patterns to prevent type 2 diabetes. It focuses on reducing cravings and building healthy habits.
La Jolla, CaliforniaAges 18–55 - NCT07477184Recruiting
Sleep app study for California firefighters
This trial tests a smartphone app designed to help firefighters sleep better, think more clearly, and feel better overall. You might join to improve your sleep and health through a simple program on your iPhone or iPad.
San Luis Obispo, CaliforniaAges 18 years+ - NCT07430800Recruiting
AI-Powered CBT for Anxiety in University Students
This study tests whether personalized computer models can improve cognitive behavioral therapy (a talk therapy that helps change thinking patterns) for anxiety. It's for university students who have mild to moderate anxiety and are comfortable with being recorded during sessions.
Los Angeles, CaliforniaAges 18 years+ - NCT07396220Enrolling by invitation
Psychotherapy with esketamine nasal spray for suicidal thoughts
This study tests combining a specific type of therapy (BCBT-SP) with esketamine nasal spray to help people with treatment-resistant depression who are having ongoing suicidal thoughts. The goal is to see if this combination can reduce suicidal ideation more effectively than either treatment alone.
San Diego, CaliforniaAges 18–70 - NCT07397858Recruiting
Brain stimulation for depression in young people
This study tests if a type of brain stimulation called Transcranial Magnetic Stimulation (TMS) can help treat depression in people aged 15 to 25. It involves a quick, non-invasive treatment that uses magnetic pulses to the head, and researchers want to see how it affects thinking and mood.
Sacramento, CaliforniaAges 15–25 - NCT05781100Recruiting
Study of baby behavior and family technology use
This study looks at how babies’ behavior relates to how families use technology. You may be able to take part if you’re in late pregnancy and can follow up over time after your baby is born.
San Luis Obispo, CaliforniaAges Any age - NCT06550206Recruiting
Toddlers' reactions to strangers
This study looks at how toddlers react to unfamiliar people. It helps us understand typical social development in healthy children.
Santa Cruz, CaliforniaAges 1.1 years–2 years - NCT07314697Recruiting
Arrival Time Study at UCLA Health
This study aims to see if adjusting the time patients arrive for their appointments can improve the clinic experience. If you already have a UCLA Health appointment in primary care or pediatrics, you may be able to join.
Los Angeles, CaliforniaAges 18 years+ - NCT07281352RecruitingPhase 1/Phase 2
Psilocybin therapy for depression
This study tests if psilocybin (a psychedelic) combined with cognitive behavioral therapy (CBT) can help people with major depression. You would receive the psilocybin in a supervised setting and have talk therapy before and after.
Los Angeles, CaliforniaAges 21–60 - NCT07279311Enrolling by invitation
Virtual reality for depression during high-risk pregnancy
This study tests if virtual reality (VR) exercises can help reduce depression symptoms in pregnant people who must stay in the hospital for at least 3 weeks due to complications. If you are feeling down and are able to use VR, this treatment might offer a new way to feel better.
Palo Alto, CaliforniaAges 18 years+ - NCT07219082Recruiting
Fentanyl safety education for people who use stimulants
This study is testing a program called BSAFE that teaches people who use stimulants like cocaine or methamphetamine how to stay safer around fentanyl. It aims to prevent accidental fentanyl exposure and its harms.
San Francisco, CaliforniaAges 18 years+ - NCT07218757Recruiting
Trial of emotional awareness therapy for veterans with chronic pain
This study tests if a type of therapy that helps you understand and express emotions related to pain (called Emotional Awareness and Expression Therapy) can reduce chronic pain in veterans. It is designed for veterans who have had muscle or joint pain for at least 3 months and rate their pain as moderate or greater.
Los Angeles, CaliforniaAges 18 years+ - NCT07202247RecruitingPhase 2
Improving heart health in prostate cancer patients on hormone therapy
This study tests whether combining a time-restricted eating plan, a heart-healthy diet, and a weight-loss medication (GLP-1 receptor agonist) can help improve heart health and weight in men with prostate cancer who are receiving hormone therapy. It aims to reduce the risk of heart problems caused by hormone treatment.
Duarte, CaliforniaAges 30–79 - NCT06867666Recruiting
Behavioral sleep therapy for insomnia in Navy members with TBI
This study tests a behavioral talk therapy for insomnia (CBT-I) in active duty Sailors who also have a history of traumatic brain injury. You'll learn better sleep habits using an app and coaching, with the goal of improving your sleep and recovery.
San Diego, CaliforniaAges 18 years+ - NCT07167875Enrolling by invitation
Digital coaching trial to improve toothbrushing habits
This study tests if personalized coaching through a smartphone app helps people stick to better toothbrushing habits. Participants use an electric toothbrush and app for 19 weeks to see if coaching improves oral hygiene.
Petaluma, CaliforniaAges 18–80 - NCT07141394Enrolling by invitation
Supporting recovery for homeless veterans in VA housing
This trial helps homeless veterans in VA supportive housing get coordinated access to addiction recovery services. It aims to improve equity and outcomes for those in recovery.
West Los Angeles, CaliforniaAges Any age - NCT07130669RecruitingPhase 1/Phase 2
Memory and thinking study for older adults
This trial tests a program to help maintain or improve memory and thinking skills in older adults. You may join if you are 60-89, speak English, and live at home or in an assisted-living facility.
Palo Alto, CaliforniaAges 60–89 - NCT06207110Recruiting
Family support program for children with high food responsiveness
This study tests a program for families with children ages 7–12 who have overweight or obesity and often feel strong urges to eat. The program helps parents support their child in eating healthier and being more active.
La Jolla, CaliforniaAges 7–12
Where these studies are running in California
Institutions with a site for the recruiting behavior studies listed above.
- University of California, Los Angeles · 2 studies
- University of Southern California · 2 studies
- 1100 Glendon Ave
- California Polytechnic State University
- California Polytechnic University - San Luis Obispo
- City of Hope
- Dientes Community Dental Care
- Keck School of Medicine of USC
What taking part in a behavior study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Common questions
- Are there behavior clinical trials in California?
- Yes. We're currently tracking 90 recruiting behavior studies with a site in California, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a behavior study in California?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in California to take part?
- Not necessarily. These studies have a site in California, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a behavior trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New behavior studies open in California regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.