Clinical trials · California
Health clinical trials in California
We’re tracking 342 recruiting health studies with a site in California — including Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT07528261Recruiting
Support Group for Family Caregivers of Stroke Survivors
This study tests whether a support group using acceptance and commitment therapy (a type of counseling that helps people cope with stress) can reduce caregiver burden and distress. You would meet online with other people caring for stroke survivors.
Alameda, CaliforniaAges 40 years+ - NCT07524270Recruiting
Testing a supplement for period pain and PMS symptoms
This study tests a product called Effera to see if it helps reduce menstrual cramps, pain, and premenstrual symptoms like mood changes and bloating. You'll track your symptoms and complete online surveys over several weeks.
San Francisco, CaliforniaAges 18–40 - NCT07507747Recruiting
Peer support app for veterans with emotional distress
This study tests a mobile app with peer support to help veterans in primary care manage emotional distress like depression, anxiety, or stress. Participation may help you feel better and connect with others who understand.
Palo Alto, CaliforniaAges 18 years+ - NCT07505797Recruiting
Ultrasound imaging study for suspicious breast lesions
This study is testing a new ultrasound device (ATUSA) to see how well it can image breast lesions that have been classified as suspicious (BI-RADS 4 or 5). If you have a recent finding that needs further evaluation, this research might help improve detection methods.
Sacramento, CaliforniaAges 18–94 - 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+ - NCT07418775Recruiting
Meningioma Study: Genes, Health & Life
This study looks at how your tumor's genes, personal health habits, and other factors affect your long-term health after a meningioma diagnosis. You'll be asked to complete surveys about your health and experiences—no new treatments or procedures are involved.
San Francisco, CaliforniaAges 18 years+ - NCT07387146Recruiting
Community health worker support for mental health
This trial tests whether a community health worker can help reduce stress in adults who speak English or Spanish. If you feel stressed often, you may be able to join.
San Francisco, CaliforniaAges 18–120 - NCT07377344Recruiting
Gum health care during pregnancy
This trial tests ways to improve gum health during pregnancy. If you have gum disease or are at risk, the study may provide dental care that could help both you and your baby.
San Francisco, CaliforniaAges 18 years+ - NCT07306013Recruiting
SolanoConnex mental health access trial
This trial tests a digital platform to help people with mild to moderate mental health symptoms get connected to care. If you live in Solano County, have a smartphone, and haven't used the platform before, you may be able to join.
Vallejo, CaliforniaAges 18 years+ - NCT07290361Recruiting
Physical therapy for spine pain in primary care
This trial tests a program that connects people with spine pain (neck or back pain) from their primary care clinic to a physical therapist. The goal is to see if this approach helps patients get more timely and effective care.
San Diego, CaliforniaAges 18 years+ - NCT07279350Recruiting
Health advocate support for children after liver transplant
This study tests whether having a health advocate helps families manage care for their child after a liver transplant. The advocate will provide support and resources to reduce stress and improve the child's recovery.
San Francisco, CaliforniaAges birth–18 years - NCT07225855Recruiting
Support for older adults with head and neck cancer and their caregivers
This trial tests whether a special geriatric assessment (a check-up for older adults) and extra support can help people aged 60+ with head and neck cancer feel better during chemotherapy and radiation. It also looks at how this helps their family or friend caregivers.
Duarte, CaliforniaAges 18 years+ - NCT07213908Recruiting
Comparing two school sleep programs for teens
This study compares two different sleep programs offered in schools to help teens sleep better. It looks at which one works best for improving sleep quality in youth with sleep problems.
Los Angeles, CaliforniaAges 12–18 - NCT07219095Recruiting
Dance Mental Health App for Injured Teens
This trial tests a mental health app (SuperBetter) for teens who dance and have a leg injury. It aims to help them cope and stay positive while recovering.
San Diego, CaliforniaAges 13–18 - 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 - NCT07186192RecruitingPhase 3
Digital health app for CAR-T therapy self-management
This study tests a digital health app to help you manage symptoms and stay connected with your care team while receiving CAR-T therapy as an outpatient. It's designed for people with blood cancers who have a caregiver living with them.
Duarte, CaliforniaAges 18 years+ - 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 - NCT07125001Recruiting
Mango study for Hispanic/Latino teens' health
This study looks at whether eating mango every day for 12 weeks can improve gut health and heart health in Hispanic/Latino teens who are overweight. Participants will be asked to eat a mango product and take daily photos.
Davis, CaliforniaAges 12–19 - 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 - NCT07064915Enrolling by invitationPhase 2
Financial help for parents during pregnancy
This study tests a program that combines medical care with financial support to see if it helps parents feel less stressed, improves pregnancy outcomes, and supports healthy baby development. If you are expecting a baby and get care at certain clinics, you may be able to join.
Harbor City, CaliforniaAges 18 years+ - NCT06185959Recruiting
New mental health group for Asians and Asian Americans
This study is testing a new mental health support group designed for Asian and Asian American adults. It aims to see if this group helps improve emotional well-being and is a good fit for participants.
Palo Alto, CaliforniaAges 18 years+ - NCT07006636Recruiting
Watermelon for heart health in postmenopausal women
This study tests whether eating watermelon can improve heart health and blood pressure in postmenopausal women with slightly elevated blood pressure. It lasts about 4 weeks and involves eating watermelon as part of your usual diet.
Los Angeles, CaliforniaAges Any age - NCT06874790Recruiting
Web-based mental health app study for Latina women
This study tests a web-based app to help Latina women in Los Angeles or Orange County who are feeling anxious or depressed. If you are not currently in therapy or on medication, you may be able to join from home using your smartphone or computer.
Los Angeles, CaliforniaAges 18 years+ - NCT06809933Recruiting
Exercise and movement for gynecologic cancer patients
This study tests whether adding an exercise and activity tracking program can help patients with newly diagnosed gynecologic cancer feel better and handle treatment more easily. You'll wear a Fitbit and get guidance on movement while you go through chemotherapy or surgery.
San Francisco, CaliforniaAges 18 years+
Where these studies are running in California
Institutions with a site for the recruiting health studies listed above.
- City of Hope · 3 studies
- University of California, San Francisco · 3 studies
- Academic Surge; Ragle Human Nutrition Research Center
- Alethios
- California Polytechnic University - San Luis Obispo
- Children's Hospital Los Angeles
- Cultura Y Arte Nativa De Las Americas
- Family Health Centers of San Diego
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.