Multiple treatments that can change the course of type 1 diabetes have been identified over the last several years through the efforts of TrialNet, the Immune Tolerance Network and others. Although these immune therapies can stop disease progression in those with elevated blood sugars, the effect has proven to be transient in most study subjects. The ongoing effort of Type 1 Diabetes TrialNet, its Clinical Centers and affiliates is to continue to develop better therapies to prevent and reverse type 1 diabetes in human subjects. The Barbara Davis Center and its affiliate network has been a central contributor to these efforts from the beginning of DPT-1 through TrialNet and we hope with renewal of our Clinical Center to be able to continue to push towards these aims as well as develop the next generation of physician-scientists who can build on the work accomplished so far.
Our aim i s not only to conduct excellent clinical research which can answer the main study questions being examined: most often metabolic - development of impaired glucose tolerance, overt diabetes or reduced C-peptide, but also to develop immune biomarkers which can help us better understand the pathogenesis of disease progression and identify secondary markers of responder groups that allow us to better tailor our therapies to achieve successful prevention of T1D.

Public Health Relevance

There are more than 1 .5 million with Type 1 diabetes in the United States and probably as many who may develop it over their lifetime. The cost of treating this disease and its complications is a major issue for our health care system. Type 1 Diabetes TrialNet was constituted to find therapies which would prevent and reverse this autoimmune disease. Although progress has been made to temporarily halt disease progression, more work to permanently stop it remains. It is the ongoing goal of the TrialNet Network through the excellent conduct of clinical trials and incorporation of relevant mechanistic studies to find treatments that can achieve these ends.

National Institute of Health (NIH)
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Research Project--Cooperative Agreements (U01)
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Special Emphasis Panel (ZDK1)
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Leschek, Ellen W
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University of Colorado Denver
Schools of Medicine
United States
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Xu, Ping; Krischer, Jeffrey P; Type 1 Diabetes TrialNet Study Group (2016) Prognostic Classification Factors Associated With Development of Multiple Autoantibodies, Dysglycemia, and Type 1 Diabetes-A Recursive Partitioning Analysis. Diabetes Care 39:1036-44
Fouts, Alexandra; Pyle, Laura; Yu, Liping et al. (2016) Do Electrochemiluminescence Assays Improve Prediction of Time to Type 1 Diabetes in Autoantibody-Positive TrialNet Subjects? Diabetes Care 39:1738-44
Triolo, Taylor M; Maahs, David M; Pyle, Laura et al. (2016) Effects of Frequency of Sensor-Augmented Pump Use on HbA1c and C-Peptide Levels in the First Year of Type 1 Diabetes. Diabetes Care 39:e61-2
Narsale, Aditi; Moya, Rosita; Robertson, Hannah Kathryn et al. (2016) Data on correlations between T cell subset frequencies and length of partial remission in type 1 diabetes. Data Brief 8:1348-51
Bundy, Brian N; Krischer, Jeffrey P; Type 1 Diabetes TrialNet Study Group (2016) A model-based approach to sample size estimation in recent onset type 1 diabetes. Diabetes Metab Res Rev 32:827-834
Pugliese, Alberto; Boulware, David; Yu, Liping et al. (2016) HLA-DRB1*15:01-DQA1*01:02-DQB1*06:02 Haplotype Protects Autoantibody-Positive Relatives From Type 1 Diabetes Throughout the Stages of Disease Progression. Diabetes 65:1109-19
Hao, Wei; Gitelman, Steven; DiMeglio, Linda A et al. (2016) Fall in C-Peptide During First 4 Years From Diagnosis of Type 1 Diabetes: Variable Relation to Age, HbA1c, and Insulin Dose. Diabetes Care 39:1664-70
Bingley, Polly J; Boulware, David C; Krischer, Jeffrey P et al. (2016) The implications of autoantibodies to a single islet antigen in relatives with normal glucose tolerance: development of other autoantibodies and progression to type 1 diabetes. Diabetologia 59:542-9
DiMeglio, Linda A; Cheng, Peiyao; Beck, Roy W et al. (2016) Changes in beta cell function during the proximate post-diagnosis period in persons with type 1 diabetes. Pediatr Diabetes 17:237-43
Moya, Rosita; Robertson, Hannah Kathryn; Payne, Dawson et al. (2016) A pilot study showing associations between frequency of CD4(+) memory cell subsets at diagnosis and duration of partial remission in type 1 diabetes. Clin Immunol 166-167:72-80

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