Clinical trials · California
Behavior clinical trials in California
We’re tracking 90 recruiting behavior studies with a site in California — including Early Phase 1 and Phase 2 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06004804Recruiting
Psychological treatments for chronic pain in veterans
This study compares two group psychological treatments for chronic pain delivered over video conference. It aims to see if these treatments help reduce pain and improve quality of life for veterans.
West Los Angeles, CaliforniaAges 60–95 - NCT06005285Recruiting
Testing a therapy program for young children with autism
This study looks at whether a therapy called the Early Start Denver Model (ESDM) works well in community programs. It includes children ages 1 to 5 with autism, their therapists, and supervisors.
Sacramento, CaliforniaAges 1 year+ - NCT05919160Enrolling by invitation
New tiny electrode to record brain activity during DBS
This study tests a high-density microelectrode that captures detailed brain recordings while surgeons place a deep brain stimulator for Parkinson’s disease. It may help doctors better locate the exact brain area to target during surgery.
Los Angeles, CaliforniaAges 18 years+ - NCT05826457Enrolling by invitation
Study for early RBD as a possible Parkinson’s risk
This study looks at people with REM sleep behavior disorder (RBD), confirmed by a sleep test, who may be in the early “prodromal” stage before Parkinson’s or related diseases. It also enrolls healthy controls to compare results from brain and body testing to better understand who is at risk.
Redwood City, CaliforniaAges 18 years+ - NCT05783817RecruitingPhase 2
MDMA-assisted therapy for OCD in adults
This trial tests whether MDMA plus cognitive behavioral therapy (CBT) can reduce OCD symptoms in adults who have tried standard OCD treatments before. You may be asked to pause certain medicines and follow specific diet/medication rules around the study session.
Palo Alto, CaliforniaAges 18 years+ - NCT05746767Enrolling by invitation
Spanish digital therapy coaching for depression and anxiety
This study tests a digital “cognitive behavioral therapy” program with peer support to help Spanish-speaking adults with depression or anxiety. It may help you manage symptoms using structured online tools and guided peer interaction.
Berkeley, CaliforniaAges 18 years+ - NCT05612750Recruiting
Online therapy for chronic pain: CBT vs one-session relief
This study compares two online treatments for chronic pain: an 8-session cognitive behavioral therapy (CBT) program versus a single “empowered relief” session. It aims to see which approach helps people manage pain better over time.
Long Beach, CaliforniaAges 18 years+ - NCT05591937Recruiting
Online therapy and prevention support for eligible East LA students
This project offers online mental health prevention and therapy programs and short assessments for eligible students. It may help you access support in a convenient way if you meet the study’s student, coverage, and technology needs.
Los Angeles, CaliforniaAges 18–40 - NCT05516277Recruiting
Insomnia care study for older adults with PTSD
This study tests a treatment plan for insomnia (trouble sleeping) in older adults who also have post-traumatic stress disorder (PTSD). The goal is to see whether improving sleep also supports heart and metabolic health (such as blood sugar and heart-related measures).
North Hills, CaliforniaAges 50 years+ - NCT05541406Recruiting
School support program for LGBTQ high school students
This trial is testing a program designed to make high schools more supportive for LGBTQ students. It aims to see if the program improves the school experience and well-being of LGBTQ youth.
El Monte, CaliforniaAges 12–20 - NCT05304065RecruitingPhase 2
Safe program for suicidal thoughts or actions in youth
This Phase 2 study tests a safer way to support young people who recently had suicidal thoughts or acted on them. If you qualify, you may get the study treatment and support designed for teens and young adults after an urgent/emergency situation.
Los Angeles, CaliforniaAges 13–24 - NCT05127616Recruiting
Trial for chronic pelvic pain: CBT vs education/support
This study tests whether structured talking therapy (CBT) or education/support helps reduce chronic pelvic pain problems in adults. It compares two approaches over time and uses symptom diaries and follow-up check-ins to see which works better.
Los Angeles, CaliforniaAges 18–70 - 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 - 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+ - 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.
Loma Linda, CaliforniaAges 18 years+ - NCT03623672Enrolling by invitation
Study for early signs of Parkinson-related brain changes
This study enrolls people with idiopathic REM sleep behavior disorder, a sleep problem that can come before Parkinson’s disease or related conditions. It aims to better understand early (“prodromal”) changes so future treatments can be targeted earlier.
Redwood City, CaliforniaAges 18 years+ - NCT01327690RecruitingEarly Phase 1
Group therapy for mental health in veterans and families
This early-stage study looks at mental health outcomes for active-duty service members, veterans, and their family members after participating in group therapy sessions. If you can follow instructions and complete consent forms, this trial may help researchers understand how group therapy affects well-being in these communities.
Santa Rosa, CaliforniaAges 18–80
Where these studies are running in California
Institutions with a site for the recruiting behavior studies listed above.
- University of California, Los Angeles · 3 studies
- Stanford University · 2 studies
- Anderson W. Clark Magnet High School
- Animo Leadership High School
- Animo Pat Brown Charter High School
- Arroyo High School
- Blair High School
- Brio College Prep
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.