Chicago Childhood Diabetes Registry

Sponsor
University of Chicago (Other)
Overall Status
Completed
CT.gov ID
NCT00204009
Collaborator
(none)
2,400
1
158
15.2

Study Details

Study Description

Brief Summary

The goal of this study is to investigate the epidemiology and natural history of childhood-onset diabetes, whether of autoimmune, non-autoimmune, or mixed etiology in affected probands and their relatives.

Condition or Disease Intervention/Treatment Phase
  • Behavioral: Disease Surveillance, Family Studies, Questionnaire Followup

Detailed Description

The goal of this study is to investigate the epidemiology and natural history of childhood-onset diabetes, whether of autoimmune, non-autoimmune, or mixed etiology in affected probands and their relatives. The following hypotheses frame the research questions to be addressed:

Hypothesis 1. Diabetes as it occurs in youth derives from a spectrum of etiologic processes, from the insulinopenia of autoimmune type 1 to obesity-related, insulin-resistant type 2 diabetes. A subset of children develop diabetes through a combination of the 2 major etiologic pathways, with autoimmune ß-cell destruction aggravated by the presence of insulin resistance related to genetic susceptibility, obesity and/or physical inactivity. A fraction of young patients are unclassifiable at onset due to severe symptomatology and ambiguities in measures of ß-cell function. This poses the research challenge of misclassification of disease, as well as the clinical difficulty of potentially inappropriate treatment … Since patients are drawn from the city-wide registry, clustering of genetic and behavioral risk factors will be systematically identified without the selection bias inherent in case series and clinic-based studies.

Research questions:
  1. Is it feasible to distinguish type 1 from early-onset type 2 diabetes at diagnosis? Which demographic, clinical, and family characteristics are most useful?

  2. Is the risk of developing diabetes among siblings of early-onset type 2 or mixed cases equivalent to that for siblings of type 1 patients? Which characteristics are most predictive of risk? Hypothesis 2. Changes in the epidemiologic parameters of childhood diabetes over the past 2 decades are directly related to changes in the prevalence of risk factors for both type 1 and type 2 diabetes, including obesity, physical inactivity, and perinatal exposures.

Research questions:
  1. Is change in the incidence of childhood diabetes occurring uniformly across all age-, sex- and ethnic strata?

  2. Are secular changes in type 2 incidence rates continuing, and is this occurring in all age-, sex- and ethnic strata? Hypothesis 3. A complex interplay of heritable, behavioral, and treatment factors can accelerate or delay the development of chronic diabetes complications. It is particularly compelling to understand this process in young patients, those with the most years of productive life at risk. … Recent observations indicate that features of the metabolic syndrome, over and above glycemic control, are potent risk factors for macrovascular complications. Familial aggregation of these traits may itself play a role in determining the risk of chronic complications among young people with diabetes.

Research questions:
  1. Do young people with diabetes who demonstrate signs and symptoms of early complications have greater insulin resistance or other characteristics that distinguish them from those patients who are free of complications, controlled for disease duration and metabolic control?

  2. Do young patients with early signs/symptoms of complications have more parents who themselves have elevated cardiovascular disease risk factors, than patients who are free of chronic complications, controlled for disease duration and metabolic control?

Study Design

Study Type:
Observational
Actual Enrollment :
2400 participants
Observational Model:
Case-Only
Official Title:
Population-based Epidemiologic Study of Childhood Diabetes in Chicago: a) Disease Surveillance; b) Family Studies; c) Questionnaire Followup.
Study Start Date :
Jul 1, 1992
Actual Primary Completion Date :
Sep 1, 2005
Actual Study Completion Date :
Sep 1, 2005

Outcome Measures

Primary Outcome Measures

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    N/A to 17 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    Yes
    Inclusion Criteria:
    • diagnosed with diabetes before age 18 AND resident of the City of Chicago at diagnosis
    Exclusion Criteria:
    • diabetes secondary to another condition, e.g. cystic fibrosis

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 The University of Chicago, Biological Sciences Division, Pritzker School of Medicine Chicago Illinois United States 60637

    Sponsors and Collaborators

    • University of Chicago

    Investigators

    • Principal Investigator: Rebecca B Lipton, PhD, University of Chicago

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    University of Chicago
    ClinicalTrials.gov Identifier:
    NCT00204009
    Other Study ID Numbers:
    • R01DK044752
    • IRB Protocol #s:
    • 11348B;
    • 11564B;
    • 12323B
    First Posted:
    Sep 20, 2005
    Last Update Posted:
    Sep 5, 2013
    Last Verified:
    Sep 1, 2013
    Keywords provided by University of Chicago
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Sep 5, 2013