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CompletedNCT00501657Updated Oct 29, 2015

Effects of Sitagliptin on Gastric Emptying in Healthy Subjects

A Phase 1 interventional study of Sitagliptin and Placebo in Gastroparesis and Diabetes Mellitus, sponsored by Royal Adelaide Hospital. Completed at 1 site in Australia. Open to participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-10-29.

Sponsored by Royal Adelaide Hospital · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
15
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
All
01

Study summary

The purpose of this study is to determine the effects of the drug, sitagliptin, on the rate at which the stomach empties, and the release of gut hormones and blood glucose concentrations, after a mashed potato meal in healthy subjects. Sitagliptin has been shown to reduce the blood glucose (sugar) response to a meal and this may potentially be due to slowing of stomach emptying. This is particularly relevant to people who have diabetes, in whom normalization of elevated blood glucose levels is important to maintain health.

Read the detailed description

The purpose of this study is to evaluate the effect of sitagliptin on gastric emptying, intragastric meal distribution, postprandial glycemia and insulinemia in healthy subjects. Glucagon-like peptide-1 (GLP-1) inhibits gastric emptying, thereby slowing the delivery of nutrients, and their absorption, across the small intestine. The rate of entry of carbohydrate into the small intestine is especially important in patients with diabetes mellitus. Sitagliptin is an orally administered inhibitor of dipeptidyl-peptidase-IV (DPP-IV), the enzyme responsible for the degradation of GLP-1. It is hypothesized that sitagliptin will increase the GLP-1 response to, and thereby slow gastric emptying and diminish the glycemic response to, a carbohydrate-containing meal.

Fifteen healthy subjects (male and female) will be studied. Each subject will be studied on two occasions following treatment for 2 days with sitagliptin (100mg once daily) or matching placebo in a randomized, double blind, crossover design. Measurements of gastric emptying, intragastric meal distribution, blood glucose concentrations, gut hormones and appetite will be measured for 4 hours following ingestion of a mashed potato meal.

02

Conditions studied

  • Gastroparesis
  • Diabetes Mellitus

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Keywords

  • gastric emptying
  • glycemia
  • appetite
  • incretin hormones
03

In context

Gastroparesis

306 studies on the registry are indexed under Gastroparesis; 67 are open to participants now.

This study's enrollment of 15 is below the median of 44 across 201 interventional studies indexed under Gastroparesis.

Browse Gastroparesis studies →

Lead sponsor

Royal Adelaide Hospital is the lead sponsor of 7 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Male or female (females must be using an appropriate contraceptive method)
  • 18 - 45 years
  • Body mass index (BMI) 19 - 25 kg/m2.

Exclusion criteria

Exclusion criteria:

  • Subjects with gastrointestinal disease, history of gastrointestinal surgery and/or significant gastrointestinal symptoms
  • Subjects taking medication known to influence gastrointestinal function
  • Alcohol intake > 20 g per day
  • Smoking > 10 cigarettes per day
  • Pregnant and/or lactating females
  • Calculated creatinine clearance \< 60 ml/min
  • Exposure to ionising radiation for research purposes in the previous 12 months.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Double (Participant, Investigator)
Enrollment
15 participants (actual)

Study arms

  • Experimental
    Sitagliptin (100mg)

    Active drug (sitagliptin)

    Drug: Sitagliptin

  • Placebo comparator
    Placebo (sugar pill)

    Inactive drug (placebo)

    Drug: Placebo

Interventions

  • DrugSitagliptin

    100mg mane for 2 days

    Also known as: MK-0431-075, Januvia

  • DrugPlacebo

    100mg mane for 2 days

06

What researchers measure

Primary outcomes

  1. Gastric emptying rate

    Time frame: 4 hours per study

Secondary outcomes

  1. Intragastric distribution, gastrointestinal hormone release (GLP-1, GIP), glycemia, insulinemia, appetite

    Time frame: 4 hours per study

07

Study locations

1 site
  • Discipline of Medicine, Royal Adelaide Hospital
    Adelaide, South Australia 5000, Australia
08

References and documents

Publications

  • Stevens JE, Horowitz M, Deacon CF, Nauck M, Rayner CK, Jones KL. The effects of sitagliptin on gastric emptying in healthy humans - a randomised, controlled study. Aliment Pharmacol Ther. 2012 Aug;36(4):379-90. doi: 10.1111/j.1365-2036.2012.05198.x. Epub 2012 Jun 28. PubMed 22738299 ↗

Related links

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 29, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00501657
Lead sponsor
Royal Adelaide Hospital
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Karen Jones (Professor, Royal Adelaide Hospital) — Principal investigator
First posted
Jul 16, 2007
Start date
Jul 2007
Primary completion
Jun 2008
Completion
Dec 2011
Last update
Oct 29, 2015

Study contacts

Karen L Jones, PhD
principal investigator · University of Adelaide, Royal Adelaide Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2014. You cannot join it, but the record below documents what was studied.

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