Clinical trials · California
Health clinical trials in California
We’re tracking 342 recruiting health studies with a site in California — including Early Phase 1 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT02620852Recruiting
Wisdom Study: Women’s breast cancer screening decisions
This study looks at how to decide the best breast cancer screening (like mammograms) based on your personal risk. It may help by testing a smarter way to match screening to your risk level.
Sacramento, CaliforniaAges 30–74 - NCT02402426Enrolling by invitation
Online brain health registry for adults
This study is building an online registry where adults can share information to help researchers find people for future brain research. Joining may help future studies get the people they need.
San Francisco, CaliforniaAges 18 years+ - NCT02016248Recruiting
Radiation “boost” for higher-risk prostate cancer
This trial studies whether adding a stronger “boost” dose of targeted radiation (SBRT) can better control higher-risk prostate cancer. It may help by increasing radiation coverage to the prostate while trying to limit treatment to surrounding areas.
Fountain Valley, 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 - NCT00345553Recruiting
Study for children with biliary atresia
This study enrolls children and young adults with biliary atresia (a condition where bile can’t flow properly from the liver) to learn from their care and outcomes over scheduled visits. It may help researchers understand the disease better and improve future treatment.
San Francisco, CaliforniaAges 6 months–20 years - NCT00061828Recruiting
Tracking Liver Disease in Newborns and Young Infants
This study follows babies under 6 months old who have early signs of liver disease (cholestasis) to better understand what causes it and how it progresses. Researchers will collect medical information over time to improve diagnosis and treatment.
San Francisco, CaliforniaAges Up to 6 months
Where these studies are running in California
Institutions with a site for the recruiting health studies listed above.
- BrainHealthRegistry.org
- Children's Hospital Los Angeles
- Children's Hospital of Los Angeles
- Long Beach Memorial Medical Center
- Orange Coast Memorial Medical Center
- Saddleback Memorial Medical Center
- Soul Medicine Institute
- University of California
What taking part in a health 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 health clinical trials in California?
- Yes. We're currently tracking 342 recruiting health 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 health 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 health 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 health 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.