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Inhibition of the Endogenous GIP Response With a GIP Receptor Antagonist

Inhibition of the Endogenous GIP Response With a GIP Receptor Antagonist (GA-3)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03133741
Acronym
GA-3
Enrollment
18
Registered
2017-04-28
Start date
2017-03-01
Completion date
2017-07-01
Last updated
2017-11-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glucose Metabolism Disorders

Keywords

GIP, GIP receptor antagonist

Brief summary

Delinieation of GIP's effects during an oral glucose tolerance test (OGTT) in humans using GIP receptor antagonisation.

Detailed description

Aim: To evaluate the role of GIPR signalling in postprandial physiology, including bone and glucose homeostasis, using a naturally occurring GIP fragment (GIP-A), which antagonises the GIPR. Eighteen healthy men (age 18-70 years, BMI 19-35 kg/m2) with normal kidney and liver parameters and haemoglobin levels and no first-degree relatives with type 2 diabetes will be included in a randomised, double-blinded, placebo-controlled cross-over study. Study consists of four study days with concomitant infusions of A) GIP-A, B) GLP-1 receptor antagonist Exendin\[9-39\], C) GIP-A + Exendin\[9-39\], or D) saline (placebo).

Interventions

GIP receptor antagonist + GLP-1 receptor antagonist

OTHERGIP-A

GIP-A (GIP receptor antagonist)

OTHERPlacebo

Saline (9mg/mL)

Sponsors

University of Copenhagen
CollaboratorOTHER
University Hospital, Gentofte, Copenhagen
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
MALE
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Normal kidney function, liver function and hemoglobin levels.

Exclusion criteria

* Medication, Diabetes type 1 or 2, first degree relatives with Diabetes type 2

Design outcomes

Primary

MeasureTime frameDescription
Insulin levels240 minutesSerum insulin AUC (area under the curve)

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026