Clinical trials · California
Health clinical trials in California
We’re tracking 342 recruiting health studies with a site in California — including Phase 1, Phase 2, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06706752Recruiting
Shengbai oral formula for chemotherapy side effects
This study tests if a Chinese herbal formula called Shengbai can safely reduce side effects from chemotherapy. It might help you feel better during cancer treatment.
Oakland, CaliforniaAges 18–80 - NCT06562127Recruiting
Water exercise and cognitive training for veterans with TBI
This trial tests if combining water-based exercise with cognitive training over eight months can help improve thinking and memory in veterans with a past mild or moderate brain injury. It may benefit veterans aged 50-89 who have ongoing cognitive complaints.
San Francisco, CaliforniaAges 50–89 - NCT07059884Recruiting
Exercise program to help people with cancer stay active
This trial tests a distance-based exercise program designed to help people on chemotherapy maintain their physical function and prevent disability. It is for patients with certain cancers who are working full-time and can participate in moderate physical activity.
Dublin, CaliforniaAges 18 years+ - NCT07064070Enrolling by invitation
Teen sexual health services study
This study tests a technology-based program to help teens access sexual health services. It may help if you have a teen who is 11–17 and has a check-up coming up.
San Francisco, CaliforniaAges 11–17 - NCT07046260Recruiting
Blood test study for early cancer detection
This study is testing a new blood test to help doctors find cancer earlier. If you are 45 or older and have symptoms that might be cancer, or were recently diagnosed with cancer, you may be able to join.
Coronado, CaliforniaAges 45 years+ - NCT07030322Enrolling by invitation
Using a personal exoskeleton at home: health and cost study
This study looks at how using a wearable robotic exoskeleton in your home and community affects your health and finances. If eligible, you would use the device with a trained support person to see if it helps with daily mobility.
San Rafael, CaliforniaAges 18 years+ - NCT07022678RecruitingPhase 3
Xylitol dental wipes to reduce infection risk in childhood leukemia
This trial tests whether using xylitol dental wipes can lower the risk of bloodstream infections in children with acute myeloid leukemia (AML) who are receiving chemotherapy. If you or your child have AML and will have at least two cycles of chemo that include cytarabine, this study may help reduce infection risk.
Oakland, CaliforniaAges 1–25 - NCT07020533RecruitingPhase 1
CMV vaccine for stem cell transplant recipients
This trial tests a vaccine designed to boost immunity against CMV (a common virus) and prevent active CMV infection in people receiving a half-matched stem cell transplant. It may help protect you from CMV-related complications after transplant.
Duarte, CaliforniaAges 18–75 - NCT07011914Recruiting
MS care study for young adults
This study looks at how to improve care for young adults with relapsing-remitting MS. It focuses on people who are Black, Hispanic, or have limited income.
San Francisco, CaliforniaAges 18 years+ - NCT06995898Recruiting
Blood test study for early cancer detection
This study is testing a new blood test that may help find cancer early. You will give blood samples over a year, and researchers will check them for signs of cancer.
Pleasanton, CaliforniaAges 45–75 - NCT06995378Recruiting
Study on prediabetes risk tools at UCLA
This study tests a tool that uses your electronic health records to identify older adults with prediabetes. It aims to help doctors better manage risk and prevent diabetes.
Los Angeles, CaliforniaAges 65 years+ - NCT06999369Enrolling by invitation
Heart failure nutrition app study
This study tests a digital nutrition tool to help people with heart failure improve their health. It is for patients recently hospitalized or seeing their doctor regularly.
Walnut Creek, CaliforniaAges 18–89 - NCT05924971RecruitingPhase 2
Taking aspirin to reduce complications after severe preeclampsia
This trial looks at whether aspirin after delivery can help postpartum recovery in people diagnosed with preeclampsia with severe features during the hospital stay. You might be considered if your care is through specific clinics at Long Beach Memorial.
Long Beach, CaliforniaAges 18 years+ - NCT06976502Enrolling by invitation
Health eHeart Biobank
This trial collects blood and tissue samples from people with and without heart disease to study heart health. If you are 18 or older and either a UCSF patient, a family member of a heart patient, or have no heart disease, you may be able to help.
San Francisco, CaliforniaAges 18 years+ - NCT05642858Recruiting
Learn heart health tips for people living with HIV
This study tests a text-message education program to help people living with HIV manage cardiovascular (heart and blood vessel) health. It may be helpful if you are 40 or older and can use a smartphone to receive messages.
San Francisco, CaliforniaAges 40 years+ - NCT06969755RecruitingPhase 4
Brain scans and genetics to guide early schizophrenia treatment
This study tests whether using brain scans and genetic tests can help choose the best treatment for people early in their schizophrenia. It will check if these biomarkers can predict who will respond better to medication.
La Jolla, CaliforniaAges 18–35 - NCT05958654Recruiting
Screening for risk of readmission during home care visits
This study tests a universal “screening” approach during home-based primary care visits to spot which patients may be at higher risk of problems that could require urgent care or hospital return. It may help patients and their care team catch risks earlier and adjust care sooner.
San Francisco, CaliforniaAges 18 years+ - NCT06943599Recruiting
Improving Eye Care After Screening
This study looks at better ways to help people get follow-up eye care after a screening. If you were in the VIEW II study and were referred to an eye hospital, this trial may offer strategies to support you in getting that care.
San Francisco, CaliforniaAges 60 years+ - NCT06941519Recruiting
Addressing social needs to improve health in adults with chronic conditions
This program helps adults with multiple health conditions who also face social challenges like food or housing problems. It connects you with support to improve your health and close gaps in your care.
Pleasanton, CaliforniaAges 18 years+ - NCT05701358Recruiting
Guiding heart stent decisions to fully treat blocked arteries after a heart attack
This trial compares two ways doctors decide which additional blocked heart arteries to treat with stents soon after a heart attack. It may help patients avoid later heart problems by testing a “complete revascularization” strategy planned after the initial culprit artery was treated.
Los Angeles, CaliforniaAges 18 years+ - NCT06906653Enrolling by invitation
Proactive care for newly diagnosed type 2 diabetes
This trial tests a new, proactive approach to help people newly diagnosed with type 2 diabetes manage their condition through better initial care and support. If you’re a Kaiser Permanente Northern California member, you may get extra resources and guidance right from the start.
Pleasanton, CaliforniaAges 18–74 - NCT06910761RecruitingPhase 2
Radiation for cancer spread to brain lining
This trial tests whether a precise type of radiation to the brain and spine (craniospinal irradiation) can help control cancer that has spread to the lining of the brain and spinal cord (leptomeningeal disease) in people with breast cancer or non-small cell lung cancer. The goal is to improve symptoms and slow disease progression.
Duarte, CaliforniaAges 18 years+ - NCT06891755Recruiting
Lung deflation procedure for severe emphysema
This study tests a bronchoscopic treatment to release trapped air in severely hyperinflated lungs caused by emphysema. It may help you breathe easier if you have advanced COPD and meet specific lung function and imaging criteria.
Sacramento, CaliforniaAges 40–84 - NCT06880055Recruiting
Shield blood test for colorectal cancer screening
This study is testing the Shield blood test for people at average risk of colorectal cancer. It looks at how well the test works for screening, so you can learn about your risk with a simple blood draw.
Anaheim, CaliforniaAges 45–81
Where these studies are running in California
Institutions with a site for the recruiting health studies listed above.
- University of California, San Francisco · 6 studies
- City of Hope · 2 studies
- Kaiser Permanente-Oakland · 2 studies
- 2121 N. California Blvd., Suite 310
- Alliance Research Institute, LLC
- Amicis Research Center
- City of Hope at Irvine Lennar
- Coral Clinics
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.