Diabetes · California
Diabetes studies in California
100 studies have at least one recruiting site in California. Diabetes research covers type 1 and type 2 diabetes, prediabetes and related complications, testing medicines, devices such as glucose monitors and insulin pumps, and lifestyle programs.
100 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingPhase 1/Phase 2
A Study in People With Diabetic Macular Edema to Test How Well Different Doses of BI 3812465 Are Tolerated
Boehringer Ingelheim
- Location
- Arcadia, CA + 24 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Study to Test Whether Survodutide Helps People With Type 2 Diabetes Control Their Blood Sugar
Boehringer Ingelheim
- Location
- Concord, CA + 56 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
Safety and Efficacy Study of Contezolid Acefosamil and Contezolid Compared to Linezolid Administered Intravenously and Orally to Adults With Moderate or Severe Diabetic Foot Infections (DFI)
MicuRx
- Location
- Corona, CA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Study to Investigate Efficacy and Safety of Teplizumab Compared With Placebo in Participants 1 to 25 Years of Age With Stage 3 Type 1 Diabetes
Sanofi
- Location
- San Diego, CA + 33 other US sites
- Eligibility basics
- Ages 1–25
- RecruitingPhase 2
SAFety and Efficacy of Human Anti-thymocyte ImmunoGlobUlin SAB-142 ARresting Progression of Type 1 Diabetes
SAb Biotherapeutics, Inc.
- Location
- San Francisco, CA + 20 other US sites
- Eligibility basics
- Ages 5–40
- RecruitingPhase 3
A Clinical Study to Evaluate the Effects of Enicepatide (RO7795068) in Participants With Obesity or Overweight Without Type 2 Diabetes
Hoffmann-La Roche
- Location
- Irvine, CA + 43 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Clinical Study to Evaluate the Effects of Enicepatide (RO7795068) in Participants With Obesity or Overweight and Type 2 Diabetes
Hoffmann-La Roche
- Location
- Irvine, CA + 44 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1
A Study to Investigate the Safety, Tolerability, and Pharmacokinetics of RO7663498 Following Intravitreal Administration in Participants With Diabetic Retinopathy
Hoffmann-La Roche
- Location
- Glendale, CA + 3 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Study to Learn About the Study Medicine Called Berobenatide (PF-08653944) in People With Overweight or Obesity
Pfizer
- Location
- Canoga Park, CA + 29 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
Study of Olatorepatide in Adult Participants Living With Overweight or Obesity Without Diabetes
Regeneron Pharmaceuticals
- Location
- Walnut Creek, CA + 20 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Phase 3 Trial for Intravitreal Injection of 4D-150 in Adults With Diabetic Macular Edema (DME).
4D Molecular Therapeutics
- Location
- Encino, CA + 8 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
A Study of LY3457263 Compared With Placebo in Participants With Type 2 Diabetes on a Stable Dose of Semaglutide or Tirzepatide
Eli Lilly and Company
- Location
- Santa Ana, CA + 24 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 1
A Study to Evaluate the Safety, Tolerability, Pharmacodynamics, and Pharmacokinetics of RO7823653 in Participants With Diabetic Macular Edema (DME)
Genentech, Inc.
- Location
- Beverly Hills, CA + 11 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
Study to Assess the Effects of ALN-ANG3 in Adult Participants With Diabetic Kidney Disease
Regeneron Pharmaceuticals
- Location
- Huntington Beach, CA + 55 other US sites
- Eligibility basics
- Ages 18–80
- RecruitingPhase 3
A Study of Eloralintide (LY3841136) in Participants With Obesity or Overweight, and Type 2 Diabetes
Eli Lilly and Company
- Location
- Canoga Park, CA + 59 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
A Study of Clazakizumab (LY5724886) in Adults With Elevated hsCRP and at Increased Risk for Cardiovascular Event
Eli Lilly and Company
- Location
- Glendora, CA + 28 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Study of Orforglipron in Participants With Overweight at Risk of Development of Obesity-Related Complications or Progression to Class 1 Obesity
Eli Lilly and Company
- Location
- Lake Forest, CA + 68 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
A Research Study Comparing How Well Different Doses of the Medicine UBT251 Lower Blood Sugar in People With Type 2 Diabetes
Novo Nordisk A/S
- Location
- Fountain Valley, CA + 20 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 3
A Phase III Study to Evaluate the Efficacy and Safety of Petrelintide in Participants With Overweight or Obesity and Type 2 Diabetes
Hoffmann-La Roche
- Location
- Los Angeles, CA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
Trial Against INtractable Type 2 Diabetes (CAPTAIN-T2D)
Sparrow Pharmaceuticals
- Location
- Fountain Valley, CA + 60 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
Extension Trial to Evaluate the Long-term Efficacy, Safety, and Tolerability of Maridebart Cafraglutide (MARITIME-2-EXTENSION)
Amgen
- Location
- Canoga Park, CA + 30 other US sites
- Eligibility basics
- Ages 18–99
- RecruitingPhase 3
AMAZE 2: A Research Study Investigating How Well the Medicine NNC0487-0111 Helps People With Excess Body Weight and Type 2 Diabetes Lose Weight
Novo Nordisk A/S
- Location
- Lomita, CA + 13 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
Research Study on How People With Type 2 Diabetes Tolerate Switching From Semaglutide to Cagrisema
Novo Nordisk A/S
- Location
- Fountain Valley, CA + 36 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Study to Evaluate Effect of AZD6234 as an Adjunct to Incretin-based Therapies in Adult Participants With Obesity or Overweight With Weight-related Comorbidity With or Without Type 2 Diabetes Mellitus
AstraZeneca
- Location
- Lincoln, CA + 4 other US sites
- Eligibility basics
- Ages 18+
Who these studies look for
Studies commonly set an HbA1c range, a diagnosis duration and a list of allowed or excluded medications. Some also recruit people without diabetes as a comparison group.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Will I have to stop my diabetes medicine?
Some studies change or pause medicines under close supervision; many add a study treatment on top of your current care. Never change medicines on your own; the study team and your doctor decide this together.