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GastroparesisPhase 1NCT00501657

Effects of Sitagliptin on Gastric Emptying in Healthy Subjects

A Phase 1 study testing Sitagliptin in people with Gastroparesis and Diabetes Mellitus, run by Royal Adelaide Hospital at 1 site in Australia.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Gastroparesis, Diabetes Mellitus
What is being tested?
Sitagliptin
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
15 participants
Where
1 siteAustralia
Study dates
Jul 2007to Dec 2011
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

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

Who cannot join

  • 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.

Trial locations and contacts

1 site in 1 country.

Australia1 site
  • Discipline of Medicine, Royal Adelaide Hospital

    Adelaide, South Australia, 5000

Other trials in Australia

About this study

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.

Being tested
Sitagliptin, Placebo
Keywords
gastric emptying, glycemia, appetite, incretin hormones
Medical subject headings
Gastroparesis, Diabetes Mellitus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SitagliptinDrug

    Also called MK-0431-075, Januvia

    100mg mane for 2 days

  • PlaceboDrug

    100mg mane for 2 days

Study groups in NCT00501657
Study groupRoleWhat they receive
Sitagliptin (100mg)ExperimentalActive drug (sitagliptin)
Receives: Drug: Sitagliptin
Placebo (sugar pill)Placebo comparatorInactive drug (placebo)
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Gastric emptying rate

    Measured: 4 hours per study

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

    Measured: 4 hours per study

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Jul 2007 (estimated)
  2. Study startJul 2007
  3. Primary completionJun 2008
  4. Study completionDec 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00501657
Sponsor's protocol ID
061025
Status last verified
Dec 2014
First submitted
13 Jul 2007
Last updated
29 Oct 2015
Results posted
No
Data monitoring committee
No

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

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Sitagliptin in people with Gastroparesis and Diabetes Mellitus, run by Royal Adelaide Hospital at 1 site in Australia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Oct 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Australia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Gastric emptying rate (time frame: 4 hours per study). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00501657, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Oct 2015.

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