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Study · Non-randomized trial · 2002

5 results

The insulinotropic effect of acute exendin-4 administered to humans: comparison of nondiabetic state to type 2 diabetes.

Egan JM, Clocquet AR, Elahi D

The Journal of clinical endocrinology and metabolism1 Mar 2002Cited by 193 (Europe PMC)

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study5

5 results from studies that gave the peptide. 5 results from people.

  1. 01HumanNon-randomized trialMechanism

    In nondiabetic and type 2 diabetic subjects, exendin‑4 potentiated plasma insulin responses 4- to 5-fold.

    In plain wordsIn nondiabetic and type 2 diabetic subjects, insulin responses increased after exendin‑4 infusion began.

    Outcome
    IncreaseInsulin response
    Study

    n: not reported in source

    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    0.15 pmol/kg/min · infusion · second hour of the clampAs given in this study (human).

    Measurements

    Potentiation of plasma insulin response
    4 to 5 fold
    nondiabetic and type 2 diabetic subjects

    Source sentences

    Summary
    With the initiation of exendin-4 infusion at 60 min, plasma insulin response was potentiated 4- to 5-fold in both groups.
    2 context sentences
    Summary · context
    In one protocol, we infused exendin-4 (0.15 pmol x kg(-1) x min(-1)) in seven nondiabetic and seven type 2 diabetic subjects during the second hour of a 5-h hyperglycemic clamp in which fasting plasma glucose was raised by 5.4 mmol/liter.
    Summary · context
    The second protocol was identical to the first except that plasma glucose was allowed to fall to the fasting levels during the fourth hour and again raised by 5.4 mmol/liter during the fifth hour in four nondiabetic and four diabetic subjects.
  2. 02HumanNon-randomized trialMechanism

    In nondiabetic and type 2 diabetic subjects, insulin levels remained elevated for several hours after exendin‑4 infusion ended.

    In plain wordsIn nondiabetic and type 2 diabetic subjects, insulin stayed elevated for several hours after exendin‑4 infusion ended.

    Outcome
    IncreasePersistent insulin elevation
    Study

    n: not reported in source

    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    0.15 pmol/kg/min · infusion · second hour of the clampAs given in this study (human).

    Source sentences

    Summary
    Despite termination of exendin-4 at the end of the second hour, the insulin levels remained elevated for several hours and hyperglycemia was maintained.
    2 context sentences
    Summary · context
    In one protocol, we infused exendin-4 (0.15 pmol x kg(-1) x min(-1)) in seven nondiabetic and seven type 2 diabetic subjects during the second hour of a 5-h hyperglycemic clamp in which fasting plasma glucose was raised by 5.4 mmol/liter.
    Summary · context
    The second protocol was identical to the first except that plasma glucose was allowed to fall to the fasting levels during the fourth hour and again raised by 5.4 mmol/liter during the fifth hour in four nondiabetic and four diabetic subjects.
  3. 03HumanNon-randomized trialMechanism

    In nondiabetic and diabetic subjects given exendin‑4, postprandial plasma glucose did not rise after the meal.

    In plain wordsIn nondiabetic and diabetic subjects given exendin‑4, glucose did not rise after the meal.

    Outcome
    No significant changePostprandial plasma glucose
    Study

    n: not reported in source

    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    0.15 pmol/kg/min · infusionAs given in this study (human).

    Source sentences

    Summary
    Postprandial plasma glucose, insulin, and GLP-1 did not rise in any subject, possibly because of delayed gastric emptying by exendin-4 even though its infusion had been terminated 4 h previously.
    1 context sentence
    Summary · context
    In one protocol, we infused exendin-4 (0.15 pmol x kg(-1) x min(-1)) in seven nondiabetic and seven type 2 diabetic subjects during the second hour of a 5-h hyperglycemic clamp in which fasting plasma glucose was raised by 5.4 mmol/liter.
  4. 04HumanNon-randomized trialMechanism

    In nondiabetic and diabetic subjects given exendin‑4, postprandial insulin did not rise after the meal.

    In plain wordsIn nondiabetic and diabetic subjects given exendin‑4, insulin did not rise after the meal.

    Outcome
    No significant changePostprandial insulin
    Study

    n: not reported in source

    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    0.15 pmol/kg/min · infusionAs given in this study (human).

    Source sentences

    Summary
    Postprandial plasma glucose, insulin, and GLP-1 did not rise in any subject, possibly because of delayed gastric emptying by exendin-4 even though its infusion had been terminated 4 h previously.
    1 context sentence
    Summary · context
    In one protocol, we infused exendin-4 (0.15 pmol x kg(-1) x min(-1)) in seven nondiabetic and seven type 2 diabetic subjects during the second hour of a 5-h hyperglycemic clamp in which fasting plasma glucose was raised by 5.4 mmol/liter.
  5. 05HumanNon-randomized trialMechanism

    In nondiabetic and diabetic subjects given exendin‑4, postprandial GLP-1 did not rise after the meal.

    In plain wordsIn nondiabetic and diabetic subjects given exendin‑4, GLP-1 did not rise after the meal.

    Outcome
    No significant changePostprandial GLP-1
    Study

    n: not reported in source

    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    0.15 pmol/kg/min · infusionAs given in this study (human).

    Source sentences

    Summary
    Postprandial plasma glucose, insulin, and GLP-1 did not rise in any subject, possibly because of delayed gastric emptying by exendin-4 even though its infusion had been terminated 4 h previously.
    1 context sentence
    Summary · context
    In one protocol, we infused exendin-4 (0.15 pmol x kg(-1) x min(-1)) in seven nondiabetic and seven type 2 diabetic subjects during the second hour of a 5-h hyperglycemic clamp in which fasting plasma glucose was raised by 5.4 mmol/liter.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    22 Oct 2026, 02:26 UTC

    Study results updated

  2. Version 1

    21 Oct 2026, 18:59 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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