Cited by 1,216Diabetes and associated disordersDiabetes Management and ResearchPancreatic function and diabetes

Staging presymptomatic type 1 diabetes: A scientific statement of JDRF, the Endocrine Society, and the American Diabetes Association

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Insel, Richard A., Dunne, Jessica L., Atkinson, Mark A., Chiang, Jane L., Dabelea, Dana, Gottlieb, Peter A., Greenbaum, Carla J., Herold, Kevan C. +8 more·2015·Diabetes Care

Abstract

Insights from prospective, longitudinal studies of individuals at risk for developing type 1 diabetes have demonstrated that the disease is a continuum that progresses sequentially at variable but predictable rates through distinct identifiable stages prior to the onset of symptoms. Stage 1 is defined as the presence of β-cell autoimmunity as evidenced by the presence of two or more islet autoantibodies with normoglycemia and is presymptomatic, stage 2 as the presence of β-cell autoimmunity with dysglycemia and is presymptomatic, and stage 3 as onset of symptomatic disease. Adoption of this staging classification provides a standardized taxonomy for type 1 diabetes and will aid the development of therapies and the design of clinical trials to prevent symptomatic disease, promote precision medicine, and provide a framework for an optimized benefit/risk ratio that will impact regulatory approval, reimbursement, and adoption of interventions in the early stages of type 1 diabetes to prevent symptomatic disease.

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  • Autoantibody markers plus clinical presentation can help distinguish type 1 from type 2 diabetes in children and adults.

    “The presence or absence of autoimmune markers (autoantibodies to glutamic acid decarboxylase [GAD65], pancreatic islet b cells [tyrosine phosphatase IA-2], and IA-2b zinc transporter [ZnT8], and/or insulin) in addition to the clinical presentation may help establish the correct diagnosis to distinguish between T1D and T2D in children or adults.22–27”

    From American Association of Clinical Endocrinology Clinical Practice Guideline: Developing a Diabetes Mellitus Comprehensive Care Plan-2022 Update. (2022) · cites this paper as [24]

    The Stage 1 section identifies insulin, GAD65, IA-2, and ZnT8 autoantibodies as markers of presymptomatic type 1 diabetes; the Overview and Stage 3 sections also describe clinical symptoms at diagnosis. The paper does not say that combining marker results with clinical presentation distinguishes type 1 from type 2 diabetes in children or adults. (LLM, conf=0.83)

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  • At stage 1 of type 1 diabetes, the 5-year risk of developing symptomatic type 1 diabetes is ~44% overall but varies considerably based on number, titer, and specificity of autoantibodies as well as age of seroconversion and genetic risk.

    “At stage 1, the 5-year risk of developing symptomatic type 1 diabetes is 44% overall but varies considerably based on number, titer, and speci fi city of autoantibodies as well as age of seroconversion and genetic risk (47).”

    From 2. Diagnosis and Classification of Diabetes: <i>Standards of Care in Diabetes—2024</i> (2024) · cites this paper as [47]

    The Overview of Staging, Stage 1 section gives an approximately 44% five-year risk, but specifically for children screened for genetic risk at birth who reached stage 1—not for all people at stage 1. The Stage 1 section supports variation by autoantibody number, titer and type, age at seroconversion, and HLA genotype. Page numbers were not provided in our copy. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • At stage 1 of type 1 diabetes, the 5-year risk of developing symptomatic type 1 diabetes is 44% overall but varies considerably based on number, titer, and specificity of autoantibodies as well as age of seroconversion and genetic risk.

    “At stage 1, the 5-year risk of developing symptomatic type 1 diabetes is 44% overall but varies considerably based on number, titer, and specificity of autoantibodies as well as age of seroconversion and genetic risk (45).”

    From 2. Diagnosis and classification of diabetes: standards of care in diabetes-2025 (2025) · cites this paper as [45]

    The Overview of Staging, Stage 1 section gives an approximately 44% five-year risk for children screened for genetic risk at birth who reach stage 1, not an overall estimate for everyone at stage 1. The Stage 1 section supports variation by autoantibody number, titer and type, age at seroconversion, and HLA genotype. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Three distinct stages of type 1 diabetes have been defined and serve as a framework for research and regulatory decision-making.

    “Three distinct stages of type 1 diabetes have been defi ned ( Table 2.3 ) and serve as a framework for research and regulatory decisionmaking (40,47).”
  • Multiple studies indicate that measuring islet autoantibodies in relatives of those with type 1 diabetes or in children from the general population can effectively identify those who will develop type 1 diabetes.

    “Multiple studies indicate that measuring islet autoantibodies in relatives of those with type 1 diabetes (47) or in children from the general population (72,73) can effectively identify those who will develop type 1 diabetes.”

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Authors
Insel, R. A., Dunne, J. L., Atkinson, M. A., Chiang, J. L., Dabelea, D., Gottlieb, P. A., Greenbaum, C. J., Herold, K. C., Krischer, J. P., Lernmark, Å., Ratner, R. E., Rewers, M. J., Schatz, D. A., Skyler, J. S., Sosenko, J. M., & Ziegler, A.-G.
Affiliations
  • Breakthrough T1D (US)
  • University of Florida (US)
  • American Diabetes Association (US)
  • Colorado School of Public Health (US)
  • University of Colorado Health (US)
  • Benaroya Research Institute (US)
  • Yale University (US)
  • University of South Florida (US)
  • Lund University (SE)
  • University of Miami (US)
  • TUM Klinikum (DE)
Corresponding author
Insel, Richard A.
Venue
Diabetes Care
Published
2015-09-15
Volume
38
Issue
10
Pages
1964-1974
ISSN
  • 0149-5992 (ISSN-L)
  • 1935-5548
OpenAlex
W1942296996
Cited by
1,216
References
134
Citations by year
2026: 149 · 2025: 182 · 2024: 139 · 2023: 151 · 2022: 124 · 2021: 132 · 2020: 82 · 2019: 89 · 2018: 71 · 2017: 50 · 2016: 42 · 2015: 4
FWCI
7.05
Type
journal article
Language
en
Open access
Locations
  • Diabetes Care (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
  • Site cant be reached (submittedVersion)
  • PuSH - Publication Server of Helmholtz Zentrum München (submittedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (UC4DK106993, UC4DK097835)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
Keywords
type 1 diabetes, presymptomatic disease, disease staging, islet autoimmunity, islet autoantibodies, dysglycemia, disease prevention, precision medicine, clinical trial design, regulatory approval
MeSH terms
Autoantibodies, Diabetes Mellitus, Type 1, Humans, Prediabetic State, Prospective Studies, Societies, Medical, United States, Autoimmunity, Disease Progression, Genetic Predisposition to Disease, Early Diagnosis, Insulin-Secreting Cells

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