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type1.science
ObservationalRecruitingNCT07155252

GTT@Home: home oral glucose tolerance testing for T1D screening

What this study tests

Yale observational study validating a self-administered fingerstick glucose tolerance test against in-clinic venous OGTT measurements in people at risk for clinical type 1 diabetes or within 100 days of stage 3 diagnosis.

Editorial review: .

Registry checked: 2026-09-17. Registry’s own update: 2026-03-06.

Most recent recorded citation date: 2026-03-06. Only explicit date metadata is included; an undated citation may be newer. This does not mean every claim was reviewed on that date.

Trial status, labels and access can change between reviews. How we review the evidence · How to read the evidence

Full sources ↓Full discussion ↓Report an issue →

Evidence at a glance

Who can enter the study?
Ages 8–45 with at least one islet autoantibody and body weight at least 43 kg. Participants with stage 3 T1D must be at least 12 and enrol within 100 days of diagnosis. The full registry specifies other health and medication criteria. Registered eligibility ↗Enrollment criteria describe who may enter. They do not establish who was analyzed or the denominator for a reported result.
Reported benefit and results
No results posted yet.Read the result sources and their limitations →
Important harms
Read the reported results, safety discussion and original sources. A separate harms summary is not available; this does not establish safety.
Research access and approval
Study regions: United States. A trial listing does not establish product approval or current recruitment at a particular site. Check the study’s current entry requirements.
What remains uncertain?
Read the full discussion and original sources for study limitations. Planned endpoints and completion dates are not results.

Research status alone does not establish approval, clinical benefit or local availability.

Primary endpoints

  • Accuracy of GTT@Home compared with in-clinic venous OGTT measures

The full picture

This record has no longer discussion. Use the study criteria, reported results and original sources on this page to assess what is known and what remains unresolved.

Sources

  1. [1]