Clinical trials · California
Behavior clinical trials in California
We’re tracking 94 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
- 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+ - NCT07719205Recruiting
Pre-visit imagery for children's dental care
This trial tests a tactile pre-visit imagery strategy to help children aged 4 to 10 years who have never had dental treatment before. The goal is to see if it reduces anxiety and improves their first experience with a filling or crown.
Los Angeles, CaliforniaAges 4–10 - NCT06444360Recruiting
Program to reduce stimulant use and risky sex in young adults
This study tests a program to help sexually active young adults reduce stimulant use and risky sexual behavior. It involves online coaching sessions, and you can join from home if you have a private space and video chat access.
Los Angeles, CaliforniaAges 16–24 - NCT07042152Recruiting
Wearable device and coaching to improve arm use after stroke
This study tests whether a wearable device that tracks arm movement, plus coaching to use your weaker arm more, can help you recover better after a stroke. It's for people who are at least 6 months past their stroke and have some arm weakness but can still use their hand.
Irvine, CaliforniaAges 18–84 - 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 - NCT06803329Recruiting
Social connection program to prevent suicide in LGBTQ+ veterans
This study tests a program called Qnnections designed to help LGBTQ+ and other minority veterans feel more connected and reduce suicide risk. It is for veterans who have had recent suicidal thoughts or behaviors and are already working with a mental health provider.
San Diego, CaliforniaAges 18 years+ - NCT06809348Recruiting
Personalized suicide prevention study for adults
This study is testing a new, personalized program to help people who are having current suicidal thoughts. It uses data about you to create a suicide prevention plan that fits your life.
San Diego, CaliforniaAges 18–65 - NCT07075536Enrolling by invitation
Web tool for birth control decisions with health conditions
This trial tests a web-based tool designed to help people with health conditions make informed choices about birth control. If you have a medical condition or take certain medications and want to discuss contraception with your doctor, this tool may help guide your conversation.
Pomona, CaliforniaAges 18–49 - NCT05206994Enrolling by invitation
Check how a California youth program helps young people
This study looks at a “Close to Home” youth program across California to see how it works for young people. You may be included if you’re in the right age range and connected to the program partners, and you agree to take part.
San Diego, CaliforniaAges 14–24 - 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 - 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+ - 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 - NCT07125235Recruiting
Support program for HIV treatment adherence
This trial tests a program to help people with HIV stay on track with their medication. If you take HIV medication, sometimes miss doses, and use stimulants, this program may offer support to improve your health.
San Francisco, CaliforniaAges 18–70 - NCT07110688Recruiting
Brain sensing study for mental states
This trial uses sensors and machine learning to understand mental states in healthy adults and people with epilepsy. Researchers aim to improve how we monitor and support mental health.
Downey, CaliforniaAges 18 years+ - NCT04363684Recruiting
Study of frontotemporal dementia and related syndromes over time
This study follows people with frontotemporal dementia (FTLD) and related conditions, and collects health and (for some people) body fluid information, to understand how these illnesses change over time. It may help researchers track disease signs and find better ways to measure progression.
Los Angeles, CaliforniaAges 18 years+ - NCT07725250Recruiting
AI-guided blood pressure trial for stage I-II hypertension
This study tests whether combining artificial intelligence with personalized medicine can help lower blood pressure in people with stage I or II hypertension (140/90 or higher). If you have high blood pressure and can walk without help, this trial may be for you.
La Jolla, CaliforniaAges 18 years+ - NCT06194305RecruitingPhase 2
Brain and behavior study of tic therapy for kids
This study tests a behavioral therapy (CBIT) for children with tics. It uses brain scans (MRI and EEG) to see how the therapy works. It may be a good fit for a child who has had tics for at least a year and hasn't had much of this therapy before.
San Diego, CaliforniaAges 10–17 - 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 - NCT04142177Recruiting
Test which pain treatments work best for chronic low back pain
This study compares how well different pain treatments reduce low back pain and improve daily life. You may be asked to start or continue care through the VA and attend in-person sessions while completing pain and activity questionnaires.
Long Beach, CaliforniaAges 18 years+ - NCT04532424Recruiting
Brain stimulation for repetitive behaviors in autism
This trial tests whether transcranial magnetic stimulation (a non-surgical treatment using magnets on the scalp) can reduce restricted and repetitive behaviors seen in autism. It’s designed for people with autism who have high levels of certain repetitive behaviors, like insistence on sameness or unusual interests.
Stanford, CaliforniaAges 12–45 - NCT04949464Recruiting
Smoking quit coaching plus lung scans for people with HIV
This study tests a behavior-change program to help people with HIV quit smoking, along with routine low-dose lung CT scans to find warning signs early. It’s a feasibility study, meaning the main goal is to see if the approach is practical and acceptable, and if people can follow through.
La Jolla, CaliforniaAges 45–80 - NCT04997473Recruiting
Mobile app weight-loss program for young transplant patients
This trial tests whether a phone app can help young people who previously had a stem cell transplant lose weight. It’s designed for people who are at least 100 days out from transplant and who meet weight criteria.
Los Angeles, CaliforniaAges 13–30 - NCT05031364Recruiting
CBT skills coaching for youth with autism and emotional needs
This study tests a therapy program (called CBT) that helps children with autism who also struggle with emotional or behavioral regulation. It aims to reduce emotional outbursts and improve coping while receiving care through community providers.
Sacramento, CaliforniaAges 6–14
Where these studies are running in California
Institutions with a site for the recruiting behavior studies listed above.
- University of California, Los Angeles (UCLA) · 4 studies
- University of California, Davis Medical Center · 2 studies
- University of California, San Francisco · 2 studies
- University of Southern California · 2 studies
- 8980 Villa La Jolla Drive
- Altamed Dental Clinic
- California Autism Professional Training and Information Network (CAPTAIN)
- Dr. Jay Silverman
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 94 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.