Genetics Of Autoimmunity In Type I Diabetes

Medical College of Wisconsin

Status: Enrolling

Conditions: Diabetes Mellitus, Type 1; Type1 Diabetes Mellitus; Diabetes Mellitus; Type1diabetes

Treatments: Other: Blood Collection

Study type: Observational

Funder types: Other

Identifiers

NCT03648918

142618

McGee Sibling Study (Other Identifier)

Details and patient eligibility

About

The purpose of this study is to gain more information about the step-by-step process that causes someone to develop type 1 diabetes. Scientists think that a person's own immune system, directed by genetic and environmental factors play a major role in its development. Participation involves a blood draw, a brief medical history questionnaire and measurements of height and weight. Some participants will be asked to return for annual follow-up visits for 10 years.

Full description

The goal of this project is to gain knowledge about the development of Type 1 diabetes (T1D), as T1D is one of the most common chronic diseases in children. There has been a rise in the number of cases diagnosed as well as a decrease in the age of diagnosis. This project aims to understand the disease progression as seen in the immune system and to define the genetic and environmental factors that affect inflammation and regulation, which could determine disease progression or nonprogression. Families that include a family member with T1D will be recruited, as well as unrelated, healthy controls as a comparison group.

Participants will have height and weight measured, complete a social & medical history questionnaire, and have blood drawn for analysis for HLA haplotype (a genetic sequence related to type 1 diabetes susceptibility)diabetes, blood glucose, immune system response, complete blood count, and autoantibody measurements. Some family members may return for follow-up visits for up to 10 years.

Enrollment: 4,000 estimated patients

Sex: All

Ages: 2+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria (Families):

• Families where at least one first-degree family member has type 1 diabetes
• The diabetic proband in the family was diagnosed before the age of 39
• Family members must be at least 2 years old to participate

Exclusion Criteria (Families):

• Families with no history of type 1 diabetes
• Families with a history of diabetes that is not type 1 (LADA, MODY, type 2 etc.)

Inclusion Criteria (Controls):

• No family history of type 1 diabetes or other autoimmune conditions
• Age 2 or older

Exclusion Criteria (Controls):

• Personal or family history of autoimmune disease