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NCT05235425: LEAP
The Lifestyle Education About Prediabetes (Leap) Study
NA trial testing Standard NDPP in PreDiabetes in 304 participants. Completed in 14 November 2025.
14 November 2025
Quick facts
| Lead sponsor | University of Michigan |
|---|---|
| Phase | NA |
| Status | Completed |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | single |
| Primary purpose | treatment |
| Enrollment | 304 |
| Start date | 20 March 2022 |
| Primary completion | 14 November 2025 |
| Estimated completion | 14 November 2025 |
| Sites | 1 location across United States |
Drugs / interventions tested
- Standard NDPP
- Very low-carbohydrate diet
Conditions studied
- PreDiabetes — all drugs for PreDiabetes →
Sponsor
University of Michigan
Who can join
Adults 21 to 75, any sex, with PreDiabetes. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
This research will test whether a standard version or very low-carbohydrate version of the Diabetes Prevention Program better improves outcomes like blood glucose control and body weight for patients with prediabetes. Participants will have screening (includes blood draw) and baseline testing with a continuous glucose monitor. Once these enrollment steps are completed and the participants will be randomized to one of two groups: standard National Diabetes Prevention Program (NDPP) or a very low-carbohydrate version. In addition to the diet (12 months) participants will be asked to participate in hour-long weekly group classes over zoom. After four months in the program, classes will occur about every month to help participants maintain the new diet. There will also be check-ins and follow-up visits through out the study.
Publications & conference data
2 peer-reviewed publications reference this trial (live from Europe PMC):
-
Testing a very low-carbohydrate adaption of the Diabetes Prevention Program among adults with prediabetes: study protocol for the Lifestyle Education about prediabetes (LEAP) trial.
Griauzde DH, O'Brien A, Yancy WS, Richardson CR, et al · · 2022 · cited 4× · PMID 36176003 · DOI 10.1186/s13063-022-06770-3 -
Testing a very low-carbohydrate adaption of the Diabetes Prevention Program among adults with prediabetes: study protocol for the Lifestyle Education about Prediabetes (LEAP) trial
Griauzde DH, O’Brien A, Yancy WS, Richardson CR, et al · · 2022 · DOI 10.21203/rs.3.rs-1839747/v1
Verify or expand the search:
- PubMed search for NCT05235425
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
Related trials
Other recruiting trials for PreDiabetes
Currently open trials in the same condition.
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- NCT06482944 — Whole Food for Families: A Pilot RCT of a Dietary Guidelines-Based Intervention to Prevent Type 2 Diabetes · NA · recruiting
- NCT06989164 — Post Prandial Individual Responses to Different Foods · NA · recruiting
- NCT07254572 — Anti-atherosclerotic Efficacy of Selected Antidiabetic Drugs in Patients With Coronary Artery Disease and Pre-diabetes · Phase 4 · recruiting
Other University of Michigan trials
Trials by the same sponsor.
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT05235425 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by University of Michigan
- Last refreshed: 19 December 2025
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT05235425.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing