Clinical trials · California
Type 1 diabetes clinical trials in California
We’re tracking 83 recruiting type 1 diabetes studies with a site in California — including Phase 1, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT07606066Recruiting
Finding Type 2 Diabetes Patients for Future Research Studies
This is a screening study to identify and understand people with type 2 diabetes whose blood sugar isn't well controlled, so they can potentially join future diabetes research trials. You won't receive a new treatment in this study—it's about getting to know your health history and seeing if you might be a good fit for upcoming studies.
Lincoln, CaliforniaAges 18 years+ - NCT06860516Recruiting
HLA Demographics Study in Adults With Type 1 Diabetes
This study (NCT06860516) is an observational trial of adults aged 18-55 with type 1 diabetes diagnosed within 6 months. It aims to collect demographic and HLA data.
San Francisco, CaliforniaAges 18–55 - NCT06919354RecruitingPhase 1
Study of GNTI-122 for new type 1 diabetes
This study tests a new treatment called GNTI-122 for adults recently diagnosed with type 1 diabetes who still make some insulin. It aims to see if the treatment can help protect the cells that produce insulin.
Duarte, CaliforniaAges 18–55 - NCT06964087RecruitingPhase 2
Testing OPT101 for type 1 diabetes
This trial tests an investigational drug called OPT101 in people with type 1 diabetes. It aims to see how the drug works in the body and whether it can help preserve insulin production, especially in those diagnosed recently or within the last 20 years.
Walnut Creek, CaliforniaAges 18–50 - NCT06981234RecruitingPhase 2
Acetazolamide for type 1 diabetes
This trial tests whether a medicine called acetazolamide (used for altitude sickness) can help people with type 1 diabetes. It compares how your body responds while on the drug versus a placebo, using a crossover design so everyone gets both treatments.
La Jolla, CaliforniaAges 18 years+ - NCT07187531RecruitingPhase 2
Testing a new drug to slow type 1 diabetes progression
This trial tests an experimental drug called SAB-142 to see if it can slow down or stop the progression of type 1 diabetes. It is designed for people who were recently diagnosed and still produce some insulin on their own.
San Francisco, CaliforniaAges 5–40 - NCT07260110Recruiting
Study of teplizumab vs. no treatment in stage 2 type 1 diabetes
This study watches people with stage 2 type 1 diabetes who either get teplizumab or not, to compare their real-world experiences. It helps researchers learn how the drug affects daily life.
San Francisco, CaliforniaAges 8 years+ - NCT07386340Recruiting
Testing a new continuous glucose monitor with flash readings
This study tests a new sensor system that tracks glucose levels continuously and can give a quick reading when you wave a device over it. It aims to see if it's safe and accurate for people with diabetes.
Escondido, CaliforniaAges 18 years+ - NCT02734277Recruiting
Extending a past Type 1 diabetes immune study
This study is for people who already took part in an earlier immune-tolerance program for Type 1 diabetes. It tests whether continuing follow-up and assessments can be done safely and may help learn more about long-term immune effects of treatment.
San Francisco, CaliforniaAges 8–35 - NCT07676565Recruiting
Adding new drugs to insulin for type 1 diabetes
This study tests whether adding certain diabetes pills (GLP-1 receptor agonists or SGLT inhibitors) to insulin is safe and helpful for adults with type 1 diabetes. Doctors will check your glucose monitor data to see how well this works.
Newport Beach, CaliforniaAges 18 years+ - NCT07076199RecruitingPhase 3
Weekly vs daily insulin for type 1 diabetes
This study tests a new once-weekly insulin (icodec) against a standard daily insulin (glargine), both taken with mealtime insulin. It aims to see which works better to control blood sugar in adults with type 1 diabetes.
Concord, CaliforniaAges 18 years+ - NCT07518004Recruiting
ROME GS System Study for diabetes glucose monitoring
This study tests the ROME GS System, a glucose monitoring device that measures blood sugar levels. The system includes a sensor placed under the skin and a transmitter worn on the body. If you have diabetes and want to help evaluate a new way to track your blood sugar, this trial may be for you.
Walnut Creek, 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 - NCT06883344Recruiting
Automated insulin for managing blood sugar during labor
This study tests if an automated insulin delivery system can help manage blood sugar levels during labor and delivery in pregnant women with type 1 diabetes. If successful, it could make the process safer and easier.
Los Angeles, CaliforniaAges 18–55 - NCT06654713Recruiting
Closed-loop insulin system impact on pregnancy study
This study looks at how automated insulin delivery systems (closed-loop pumps) work during pregnancy for women with type 1 diabetes. It aims to understand how these systems can help manage blood sugar levels safely for both you and your baby.
San Francisco, CaliforniaAges 18 years+ - NCT07521475Recruiting
Fully Closed Loop Insulin Pump for Type 2 Diabetes
This study tests a new automated insulin pump system (Omnipod) that adjusts insulin doses on its own throughout the day for people with type 2 diabetes. The goal is to see if it helps keep blood sugar levels more stable while reducing the burden of manual insulin management.
Los Angeles, CaliforniaAges 18–75 - NCT05322213RecruitingPhase 1
THC study for blood sugar control in type 2 diabetes
This early-phase study tests how THC (the main cannabis ingredient) affects blood sugar levels in people with type 2 diabetes. It may help researchers understand whether THC changes glucose control and what risks come with it.
La Jolla, CaliforniaAges 21–70 - NCT07546929RecruitingPhase 2
HP-211 Safety Study for Type 2 Diabetes Treatment
This study tests a new medicine called HP-211 in people with early-stage type 2 diabetes to see if it's safe and helps control blood sugar. You'd take the study drug along with your current diabetes management.
Canoga Park, CaliforniaAges 18 years+ - NCT07019649Enrolling by invitation
AYUDA program for younger Latinx adults with type 2 diabetes
This study tests a program called AYUDA, which sends helpful text messages and support to younger Latinx adults (ages 18–44) who were recently diagnosed with type 2 diabetes and are raising children. The goal is to see if this program helps manage diabetes better.
Pleasanton, CaliforniaAges 18–44 - NCT07340320RecruitingPhase 2
CX11 tablets for type 2 diabetes
This trial tests an experimental drug called CX11 to see if it helps control blood sugar in people with type 2 diabetes who are already taking metformin. It may be an option for you if your blood sugar is not well controlled and you meet the health requirements.
Cerritos, CaliforniaAges 18–75 - NCT07662109RecruitingPhase 3
Testing a new combo pill for type 2 diabetes
This study tests if a new medicine (elecoglipron) combined with dapagliflozin is safe and works better for adults with type 2 diabetes that isn't well controlled by diet or other medications.
Bakersfield, CaliforniaAges 18 years+ - NCT07662044RecruitingPhase 3
Studying elecoglipron for type 2 diabetes
This trial tests a new medicine called elecoglipron, taken alone or with another diabetes drug (dapagliflozin), to see if it helps control blood sugar better than a placebo. It may be an option if your current treatment isn't working well enough.
Lomita, CaliforniaAges 18 years+ - NCT07598773Enrolling by invitation
Continuous glucose monitoring study for prediabetes and type 2 diabetes
This study asks you to wear a glucose monitor and smart ring for several months to help researchers understand how blood sugar changes throughout the day in people with prediabetes or type 2 diabetes. The goal is to learn how lifestyle and medications affect blood sugar control.
San Francisco, CaliforniaAges 18 years+ - NCT07176793Recruiting
Breastfeeding support after gestational diabetes
This study tests a breastfeeding support program for people who had gestational diabetes during pregnancy. The goal is to see if this support helps them breastfeed longer and stay healthy.
Sacramento, CaliforniaAges 18 years+
Type 1 diabetes trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting type 1 diabetes studies listed above.
- University of California, San Francisco · 6 studies
- Diablo Clinical Research · 4 studies
- Headlands Research - AMCR Institute · 3 studies
- Research Site · 3 studies
- Altman Clinical and Translational Research Institute · 2 studies
- Hoag Memorial Hospital Presbyterian · 2 studies
- Kaiser Permanente Northern California · 2 studies
- University of California San Diego · 2 studies
What taking part in a type 1 diabetes 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.
Type 1 diabetes trials in other states
Common questions
- Are there type 1 diabetes clinical trials in California?
- Yes. We're currently tracking 83 recruiting type 1 diabetes 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 type 1 diabetes 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 type 1 diabetes 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 type 1 diabetes 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.