Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 16, 2026, 4:09 PM EDT

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Showing 1–4 of 4 matching trials from the live ClinicalTrials.gov search.
Conditions
Diabetes (DM)
Interventions
Exendin-9 is a 30 amino acid peptide that is an established competitive antagonist of the GLP-1 receptor. Subjects will receive exendin-9 by intravenous infusion at a rate of 600 pmol/kg/min, Dexamethasone, Dextrose 20% solution
Drug
Lead sponsor
David D'Alessio, M.D.
Other
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Completed Phase 1 Interventional Accepts healthy volunteers

Incretin Action in Physiology and Diabetes

NCT02550548
Conditions
Insulin Secretion
Interventions
GIP infusion, GLP-1 infusion, Ex-9 infusion
Drug
Lead sponsor
David D'Alessio, M.D.
Other
Eligibility
18 Years to 65 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Completed Phase 1 Interventional Accepts healthy volunteers

Glucagon Regulation of Glucose Metabolism

NCT04347252
Conditions
Insulin Secretion
Interventions
Glucagon
Drug
Lead sponsor
David D'Alessio, M.D.
Other
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Completed Phase 1 Interventional Accepts healthy volunteers Results available

DPP4 Inhibition & Beta Cell Function

NCT02683187
Conditions
Healthy
Interventions
Active Comparator: Sitagliptin, Placebo Comparator - No Sitagliptin
Drug
Lead sponsor
David D'Alessio, M.D.
Other
Eligibility
35 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Durham, North Carolina