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Study identifier: NCT07224334 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Role of Alpha-to-beta Cell Communication to Adapt Insulin Secretion to Insulin Resistance.

Condition: Diabetes (DM)  ·  Sponsor: David D'Alessio, M.D.

PhasePhase 1
Planned participants30
Who can joinAll sexes, 18 Years to 60 Years
Healthy volunteersYes

About this study

Glucagon secretion from α-cells has long been viewed as primarily a counterregulatory mechanism - e.g. an agent with a role to prevent blood sugar from decreasing to levels that compromise function. Our group, along with other researchers, have begun to identify a much more complex role for α-cells, raising questions about when and how glucagon may influence blood glucose levels. This proposal looks to detail proglucagon peptide secretion from α-cells and the impact this has on β-cell function and glucose tolerance, in preclinical studies of human islets and translational studies in human subjects. This protocol registration describes Aim 2 from this NIH grant which involves 2 study populations and separate protocols but addresses a common question. Aim 3 in the grant is focused on a separate hypothesis and will be conducted and published separately from Aim 2.

This description comes directly from the study's public registry record.

Talk to the study team

Johanna Johnson, MS  ·  919-660-6766  ·  johanna.johnson@duke.edu

Alyssa Sudnick, MS  ·  919-660-6769  ·  alyssa.sudnick@duke.edu

Always discuss trial participation with your own doctor first.

Locations (1)

Duke Center for LivingDurham, North Carolina, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT07224334