HLA Demographics Study in Adults With Type 1 Diabetes

NCT ID: NCT06860516

Last Updated: 2025-09-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-06-06

Study Completion Date

2026-06-30

Brief Summary

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This is a study to evaluate the HLA-DRB1\*04:01 genotype in adults that have been diagnosed with type 1 diabetes

Detailed Description

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This is a non-interventional study to evaluate the distribution of human leukocyte antigen (HLA)-DRB1\*04:01 genotype in participants that are recently (within 2 months of the study visit) diagnosed with T1D, with a single blood draw for the analysis of HLA genotype within the study participants. The study duration will be 24 hours and will include a single study visit for the collection of demographic data and a single blood draw, and a follow-up telephone call 24 hours after the study visit.

Conditions

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Diabetes Mellitus, Type I

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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all participants

aged ≥ 18 to ≤ 45 years recently (within 2 months of the study visit) diagnosed with T1D

blood draw

Intervention Type OTHER

a blood draw for testing of HLA-DRB1\*04:01

Interventions

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blood draw

a blood draw for testing of HLA-DRB1\*04:01

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Male and female participants aged ≥ 18 to ≤ 45 years, with type 1 DM meeting American Diabetes Association criteria at diagnosis:

1. Fasting glucose ≥ 126 mg/dL (7.0 mmol/L), or
2. 2-hour oral glucose tolerance test plasma glucose ≥ 200 mg/dL (11.0 mmol/L), or
3. Hemoglobin A1c ≥ 6.5%, or
4. Random plasma glucose ≥ 200 mg/dL (11.1 mmol/L) (with documented classic hyperglycemia symptoms or hyperglycemic crisis).
2. Date of T1D diagnosis within 2 months of the study visit.
3. Able and willing to provide written, informed consent as approved by the institutional review board (IRB). Participants must be able to consent directly; no other person or guardian may consent for them in this study.

Exclusion Criteria

1. Participant is an employee of, or an immediate family member of an employee, of the Sponsor, study site, or of a contractor/vendor who is involved in direct study conduct for this protocol.
2. Participant is unwilling or unable to comply with the study visit assessments.
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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GentiBio, Inc

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Mark Bach, MD

Role: STUDY_DIRECTOR

GentiBio, Inc

Locations

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University of California, San Francisco

San Francisco, California, United States

Site Status RECRUITING

University of Florida- Gainesville

Gainesville, Florida, United States

Site Status NOT_YET_RECRUITING

Joslin Diabetes Center

Boston, Massachusetts, United States

Site Status RECRUITING

Icahn School of Medicine at Mount Sinai

New York, New York, United States

Site Status RECRUITING

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Kristin M Neff, MS

Role: CONTACT

85-732-75483

Mark Bach, MD

Role: CONTACT

908-578-3634

Facility Contacts

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Rebecca Wesch, Recruitment Coordinator

Role: primary

844-813-8273

Jennifer Hosford

Role: primary

352-294-5759

Michelle Zhang

Role: primary

888-813-8669

Carol Levy, MD

Role: primary

212-241-0068

Alex Kass

Role: primary

984-974-3004

Other Identifiers

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GNTI-T1D-HLA-1002

Identifier Type: -

Identifier Source: org_study_id

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