Clinical trials · California
Adolescent clinical trials in California
We’re tracking 109 recruiting adolescent studies with a site in California — including Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT05788536RecruitingPhase 1/Phase 2
Gene therapy study for OTOF-related hearing loss
This trial tests a one-time gene therapy delivered into the ear to improve hearing in people with certain OTOF gene changes. It studies safety and how well the treatment can work, especially in children and infants, as doctors monitor hearing tests for up to 48 weeks.
Los Angeles, CaliforniaAges Any age - NCT06379789RecruitingPhase 1/Phase 2
Gene therapy for severe hemophilia B
This trial tests a new gene therapy (REGV131-LNP1265) that aims to let your body produce its own factor IX, reducing or stopping the need for regular infusions. It is for children and adults with severe hemophilia B who are already using factor IX replacement therapy.
Los Angeles, CaliforniaAges 2 years+ - NCT06012240RecruitingPhase 3
Testing Upadacitinib for Severe Alopecia Areata
This study tests an oral tablet called upadacitinib for people with severe alopecia areata who have lost at least half of their scalp hair. It aims to see if the drug can safely help hair regrow.
Chula Vista, CaliforniaAges 12–63 - NCT07650916RecruitingPhase 3
A study of two ultra-long-acting HIV shots
This trial tests a new ultra-long-acting injectable combination of cabotegravir and rilpivirine for people with HIV who already have the virus under control. It aims to see if these shots can keep the virus suppressed with fewer doses.
Bakersfield, CaliforniaAges 12 years+ - NCT07276724RecruitingPhase 3
Study of GB-0895 for severe uncontrolled asthma
This trial tests an add-on medicine called GB-0895 for people with severe asthma that is not well controlled with current treatments. It aims to see if adding this drug can reduce asthma attacks and improve breathing.
Northridge, CaliforniaAges 12–80 - NCT06679140RecruitingPhase 3
Study of Ibuzatrelvir for COVID-19 in high-risk patients
This trial tests if a new medicine called ibuzatrelvir can help people with COVID-19 who have certain health risks avoid severe illness. It is for patients who cannot or choose not to take another COVID-19 pill called Paxlovid.
Bakersfield, CaliforniaAges 12 years+ - NCT07196748RecruitingPhase 3
Icotrokinra for adults and teens with moderate to severe ulcerative colitis
This trial tests a new oral medication, icotrokinra, for people with moderately to severely active ulcerative colitis. It may be an option if you have not responded well enough to standard treatments or newer advanced therapies.
Anaheim, CaliforniaAges 12 years+ - NCT07107945RecruitingPhase 3
Study of empagliflozin for children with chronic kidney disease
This trial tests if empagliflozin, a daily pill, is safe and helps children ages 2–17 with chronic kidney disease (CKD). Your child may be eligible if they have reduced kidney function and elevated protein in their urine, and are already on stable kidney treatments.
Los Angeles, CaliforniaAges 2–17 - NCT06439082RecruitingPhase 3
Crizanlizumab for sickle cell pain crises
This trial tests whether crizanlizumab can reduce painful sickle cell crises (called vaso-occlusive crises or VOCs) in people with sickle cell disease who have frequent crises. It may be an option for those who still have crises despite current treatments.
Orange, CaliforniaAges 12–100 - NCT07675161Recruiting
MiniMed wearable device study for children with diabetes
This study tests a small wearable device that helps manage diabetes. It is designed for children and teens ages 7 to 17 who use insulin, and aims to see how well the device fits and works in daily life.
Sacramento, CaliforniaAges 7–17 - NCT07049575RecruitingPhase 1
Ruxolitinib cream study for hidradenitis suppurativa
This study tests a cream called ruxolitinib for people with hidradenitis suppurativa (HS). The goal is to see how much of the cream is absorbed when it's applied to a large area of the body.
Fountain Valley, CaliforniaAges 12–75 - NCT07476183RecruitingPhase 1
Testing APR-2020 for RPS19-deficient Diamond-Blackfan Anemia
This trial is testing a new treatment called APR-2020 for children and young adults with a specific type of Diamond-Blackfan Anemia (caused by a change in the RPS19 gene). The goal is to see if this treatment is safe, tolerable, and can help reduce the need for blood transfusions.
Stanford, CaliforniaAges 2–25 - NCT07424404RecruitingPhase 3
Long-term safety trial for teens with schizophrenia or autism irritability
This trial looks at the long-term safety of KarXT, a medication for schizophrenia, and KarX-EC for irritability related to autism in teenagers. It is for teens who have already completed the main part of a previous study without serious side effects.
Anaheim, CaliforniaAges 5–17 - NCT06672939RecruitingPhase 3
Orforglipron for Weight Loss in Teens
This study tests a once-daily pill (orforglipron) to help adolescents with obesity or overweight plus related health problems lose weight. It offers a new option for teens who have struggled to lose weight with diet and exercise alone.
Oxnard, CaliforniaAges 12–17 - NCT07288567RecruitingPhase 3
KarXT for teens with schizophrenia
This trial tests if a new medicine, KarXT, can safely and effectively treat schizophrenia in adolescents. It may help teenagers who have active symptoms like hallucinations or disorganized thinking.
Anaheim, CaliforniaAges 13–17 - NCT07540780Recruiting
Social media support groups to help teens quit vaping
This study tests whether online support groups on social media can help teenagers stop vaping. You'd join a group with other teens your age working toward the same goal, with support from trained peer mentors.
San Francisco, CaliforniaAges 13 years+ - NCT07253285RecruitingPhase 3
Study on cagrilintide and CagriSema for kids with excess weight
This trial tests two new medicines (cagrilintide and CagriSema) to see if they help children and teens lose weight. It's for young people who have tried lifestyle changes without enough success.
Escondido, CaliforniaAges 8–18 - NCT07297979RecruitingPhase 1
Xaluritamig for relapsed or refractory Ewing sarcoma
This trial is testing a new drug called xaluritamig for children, teens, and adults with Ewing sarcoma that has come back or is not responding to treatment. The goal is to see if this drug can shrink the cancer or stop it from growing.
Los Angeles, CaliforniaAges 2 years+ - NCT03388606Recruiting
Studying adolescent depression and how to treat it
This study looks closely at how depression shows up in teens and tests approaches to treatment. It may help teens and families better understand depression and get access to structured care as part of research.
Los Angeles, CaliforniaAges 11–25 - NCT06525064Recruiting
Health-E You app study for teen guys
This study tests a health app designed for teen guys who have had vaginal or anal sex. It aims to see if the app can help with sexual health decisions and education.
Oakland, CaliforniaAges 13–21 - NCT03509961RecruitingPhase 2
Reducing total body radiation for children with leukemia transplants
This study looks at whether some children and young adults with B-ALL can safely get a transplant without total body irradiation (TBI), based on special leukemia test results. It’s meant to help lower radiation-related risks while keeping leukemia control strong.
San Francisco, CaliforniaAges 1–25 - NCT03817502RecruitingPhase 3
Cariprazine test for teens with schizophrenia
This trial tests whether cariprazine works and is safe for teens aged 13 to 17 with schizophrenia. It may help if your symptoms are still moderate to severe despite current care.
Culver City, CaliforniaAges 13–17 - NCT04153994Recruiting
Numbing injection study for kids’ scoliosis back surgery pain
This trial tests whether a specific numbing injection (placed in the muscles of the back) can improve pain control for children having one-stage scoliosis surgery. It may help reduce post-surgery pain needs and improve comfort.
Palo Alto, CaliforniaAges Up to 18 years - NCT04453072Recruiting
iPhone weight-loss app for teens and young adults after transplant
This study tests whether an iPhone weight-management app can help adolescents and young adults lose weight after a stem cell transplant. If you qualify, you’ll use the app and the team will track changes in weight.
Los Angeles, CaliforniaAges 13–30
Where these studies are running in California
Institutions with a site for the recruiting adolescent studies listed above.
- University of California, San Francisco · 6 studies
- University of California, Los Angeles (UCLA) · 5 studies
- ProScience Research Group · 3 studies
- Stanford University · 3 studies
- Advanced Research Center (ARC), Inc. · 2 studies
- Children's Hospital Los Angeles · 2 studies
- Clinical Trials Research Institute · 2 studies
- First OC Dermatology · 2 studies
What taking part in a adolescent 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.
Adolescent trials in other states
Common questions
- Are there adolescent clinical trials in California?
- Yes. We're currently tracking 109 recruiting adolescent 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 adolescent 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 adolescent 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 adolescent 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.