Each study gives us important information.

Once a study ends and findings are analyzed, we share the results with the participants, scientific community, and public.

No matter what the results, every study gives us important information to carefully evaluate current thinking and moves us one step closer to a future without T1D.

Abatacept Prevention Study

TrialNet tested the drug abatacept to see if it could delay or prevent stage 1 T1D (two or more diabetes-related autoantibodies, but normal blood sugar) from progressing to stage 2 (abnormal blood sugar) or to stage 3 (clinical diagnosis). In an earlier study in people newly diagnosed (stage 3), participants treated with abatacept had 59% better insulin production and a 9.6-month average delay in progression of insulin loss compared to those who received placebo. That difference extended out to 3 years. Details

ATG Prevention Study (STOP-T1D)

TrialNet is testing a low dose of the immunotherapy drug anti-thymocyte globulin (ATG) to see if it can delay or prevent type 1 diabetes (T1D) in people ages 6 to 34 who have a 50% risk of clinical diagnosis (Stage 3) within 2 years. Risk is defined by having two or more autoantibodies and abnormal blood sugar (Stage 2), plus at least one high-risk marker (based on test results). In an earlier TrialNet study for people newly diagnosed with T1D, low-dose ATG preserved insulin production and improved blood sugar control for 2 years. Details

ATG/GCSF New Onset Study

ATG/GCSF was designed to build on prior findings of a pilot study suggesting thymoglobulin (ATG) combined with pegylated granulocyte colony stimulating factor (GCSF) preserved insulin production for more than 1 year after treatment in people who had type 1 diabetes for 4 months to 2 years. Details

Hydroxychloroquine (HCQ)

We are testing the drug hydroxychloroquine (HCQ) to see if it can delay or prevent early stage T1D (stage 1) from progressing to abnormal glucose tolerance (stage 2) and ultimately prevent clinical diagnosis (stage 3). HCQ is already used to reduce symptoms and progression of other autoimmune diseases, such as rheumatoid arthritis and lupus. This is the first study to see if it can prevent or delay T1D. Details

Oral Insulin Prevention Study

TrialNet tested the drug Oral Insulin to see if it can delay or prevent T1D (stage 1) from progressing to stage 2 and ultimately prevent clinical diagnosis (stage 3). Details

Teplizumab (Anti-CD3)

We tested the drug teplizumab to see if it could delay or prevent progression of early stage T1D (stage 2) and prevent clinical diagnosis (stage 3). In earlier studies in people newly diagnosed (stage 3), teplizumab helped to prolong insulin production. Details