NCT05189353

Brief Summary

The overall aim is to delineate the contribution of ghrelin to glucose tolerance after sleeve gastrectomy. The hypothesis is that decreased concentration of ghrelin after SG is of importance for improved insulin secretion and glucose tolerance seen after SG. The expectation is therefore that infusion of ghrelin will impair insulin secretion and glucose tolerance compared with a control day without ghrelin infusion.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
22

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2022

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 28, 2021

Completed
15 days until next milestone

First Posted

Study publicly available on registry

January 12, 2022

Completed
2 days until next milestone

Study Start

First participant enrolled

January 14, 2022

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 26, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 26, 2023

Completed
Last Updated

November 1, 2023

Status Verified

October 1, 2023

Enrollment Period

1.4 years

First QC Date

December 28, 2021

Last Update Submit

October 31, 2023

Conditions

Keywords

GhrelinGastric sleeveGlucose metabolism

Outcome Measures

Primary Outcomes (1)

  • The difference in disposition index between the two study days with and without ghrelin in fusion in the SG operated group

    The first phase insulin response will be related to the ambient insulin sensitivity by calculating the disposition index (FPIR x M-value).

    0-180 minutes

Secondary Outcomes (2)

  • The difference in first phase insulin response (FPIR) between the two study days with and without ghrelin in fusion in the SG operated group

    0-10 minutes (IVGTT)

  • The difference in Insulin sensitivity (M-value) between the two study days with and without ghrelin in fusion in the SG operated group

    160-180 minutes (the end of the clamp)

Study Arms (2)

Gastric sleeve operated

EXPERIMENTAL

12 subjects with normal glucose tolerance (NGT) operated with SG minimum 12 month earlier

Other: GhrelinOther: Placebo

Matched control group

PLACEBO COMPARATOR

12 weight-matched unoperated subjects with NGT

Other: GhrelinOther: Placebo

Interventions

GhrelinOTHER

Ghrelin infusion

Gastric sleeve operatedMatched control group
PlaceboOTHER

Saline infusion

Gastric sleeve operatedMatched control group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Weight stable (+/- 3 kg during the last 3 months)
  • Fasting glucose \< 7,0 mmol/l / HbA1c \< 48 mmol/mol pre- and postoperative
  • Signed written informed consent

You may not qualify if:

  • Pregnancy or breastfeeding.
  • Haemoglobin \< 6,5 mM.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hvidovre Universitets Hospital

Hvidovre, 2650, Denmark

Location

MeSH Terms

Conditions

Glucose Metabolism Disorders

Interventions

Ghrelin

Condition Hierarchy (Ancestors)

Metabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Peptide HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsPeptidesAmino Acids, Peptides, and Proteins

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Single randomized clinical trial
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, Ph.d.-student

Study Record Dates

First Submitted

December 28, 2021

First Posted

January 12, 2022

Study Start

January 14, 2022

Primary Completion

June 26, 2023

Study Completion

June 26, 2023

Last Updated

November 1, 2023

Record last verified: 2023-10

Locations