500,000-person study aims to close diabetes screening gaps with tailored outreach
NCT ID NCT05730582
First seen Jun 27, 2026 · Last updated Sep 03, 2026 · Updated 2 times
Summary
This study tests whether sending personalized screening invitations based on a person's race, ethnicity, and diabetes risk, plus offering phone navigation for those who don't respond, leads to more people getting tested for diabetes compared to generic invitations or usual care. It involves up to 500,000 adults aged 18-75 who are not already diagnosed with diabetes. The goal is to find the most effective and cost-effective way to catch diabetes early.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 500,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2024
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patient is alive at time of data extraction * Age \>= 18 at time of data extraction and \<76 * Visit with PCP at Parkland clinic in the last 18 months (548 days), where Encounter type = Virtual Visit or Encounter type = Office Visit * Patient NOT included in Parkland Diabetes Registry * Preferred language is Spanish or English * Ethnicity is Hispanic or Non-Hispanic * Race is White or Black * Patient is not pregnant in last 12 months Exclusion Criteria for Study Population 1: Prediabetes Glycemic Risk Group * Last A1C value \<5.7 (normal) * Last A1C value \>6.4 (diabetes) * Last A1C value = blank (unchecked) * Last A1C date occurred within last 12 months from date of export Exclusion Criteria for Study Population 2: Score-Based Glycemic Risk Group * Risk score \<9 * Last A1C date occurred in last 30 months from date of export * Last A1C value was \>5.7 (PDM/DM)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Parkland Health
Dallas, Texas, 75235, United States
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