A Study by Scintigraphy to Evaluate the Effect of Exenatide on Gastric Emptying in Subjects With Type 2 Diabetes

February 20, 2015 updated by: AstraZeneca
As exenatide slows the rate at which materials leave the stomach, it is likely to alter the rate of intestinal absorption of oral drugs when administered within a certain timeframe relative to exenatide. In addition, the residence time within the stomach of other medication may be prolonged and data from this study will help assess the change in residence time in the presence of therapeutic doses of exenatide. This study will also evaluate the relationship between blood levels of exenatide and parameters measuring rate of stomach emptying.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

17

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

25 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subjects with at least 1 year history of type 2 diabetes mellitus.
  • Subjects controlled by oral antidiabetic agents or diet and exercise demonstrated by a screening HbA1c ≥7.0% and ≤10.0%.
  • Between the body mass index (BMI) of 19 kg/m2 and 40 kg/m2, inclusive.

Exclusion Criteria:

  • Within 4 months of the initial dose of study drug, have received a drug that has not received regulatory approval for any indication.
  • Persons who have previously completed or withdrawn from this study or any other study investigating exenatide.
  • Subjects who are using drugs that significantly affect gastrointestinal motility (including acarbose, metoclopramide, and macrolide antibiotics).
  • Subjects who intend to start new concomitant medication during the study, including over-the counter medication, apart from occasional intake of paracetamol or vitamin/mineral supplements. Anti-emetic medication may be permitted at the investigator's discretion, except those that affect gastrointestinal motility.
  • Subjects who have used insulin for more than 4 weeks within 3 months prior to screening.
  • Blood donation of more than 500 mL in the last 3 months of screening or any blood donation within the last month.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Sequence 1
Exenatide 5 mcg - Exentatide 10 mcg - Placebo
Drug: exenatide and placebo
Period 1 = Subcutaneous injections of exenatide 5mcg twice daily for 4 days and once in the morning of the 5th day. Period 2 = Subcutaneous injections of exenatide 5mcg twice daily for 2 days, followed by 2 days of twice daily 10 mcg doses, 10mcg once in the morning of the 5th day. Period 3 = Subcutaneous injections of placebo in an amount equivalent to exenatide twice daily for 4 days and once in the morning of the 5th day. A washout of at least 2.5 days will occur between each treatment period.
Other Names:
  • Byetta
  • synthetic exendin-4
  • AC2993
Experimental: Sequence 2
Exenatide 10 mcg - Placebo - Exenatide 5 mcg
Drug: Exenatide and placebo
Period 1 = Subcutaneous injections of exenatide 5mcg twice daily for 2 days, followed by 2 days of twice daily 10 mcg doses, 10mcg once in the morning of the 5th day. Period 2 = Subcutaneous injections of placebo in an amount equivalent to exenatide twice daily for 4 days and once in the morning of the 5th day. Period 3 = Subcutaneous injections of exenatide 5mcg twice daily for 4 days and once in the morning of the 5th day. A washout of at least 2.5 days will occur between each treatment period.
Other Names:
  • Byetta
  • synthetic exendin-4
  • AC2993
Drug: Exenatide and placebo
Period 1 = Subcutaneous injections of placebo in an amount equivalent to exenatide twice daily for 4 days and once in the morning of the 5th day. Period 2 = Subcutaneous injections of exenatide 5mcg twice daily for 4 days and once in the morning of the 5th day. Period 3 = Subcutaneous injections of exenatide 5mcg twice daily for 2 days, followed by 2 days of twice daily 10 mcg doses, 10mcg once in the morning of the 5th day. A washout of at least 2.5 days will occur between each treatment period.
Other Names:
  • Byetta
  • synthetic exendin-4
  • AC2993
Experimental: Sequence 3
Placebo - Exenatide 5 mcg - Exenatide 10 mcg
Drug: Exenatide and placebo
Period 1 = Subcutaneous injections of exenatide 5mcg twice daily for 2 days, followed by 2 days of twice daily 10 mcg doses, 10mcg once in the morning of the 5th day. Period 2 = Subcutaneous injections of placebo in an amount equivalent to exenatide twice daily for 4 days and once in the morning of the 5th day. Period 3 = Subcutaneous injections of exenatide 5mcg twice daily for 4 days and once in the morning of the 5th day. A washout of at least 2.5 days will occur between each treatment period.
Other Names:
  • Byetta
  • synthetic exendin-4
  • AC2993
Drug: Exenatide and placebo
Period 1 = Subcutaneous injections of placebo in an amount equivalent to exenatide twice daily for 4 days and once in the morning of the 5th day. Period 2 = Subcutaneous injections of exenatide 5mcg twice daily for 4 days and once in the morning of the 5th day. Period 3 = Subcutaneous injections of exenatide 5mcg twice daily for 2 days, followed by 2 days of twice daily 10 mcg doses, 10mcg once in the morning of the 5th day. A washout of at least 2.5 days will occur between each treatment period.
Other Names:
  • Byetta
  • synthetic exendin-4
  • AC2993

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To detect the mean difference in half gastric emptying time for a solid meal between any treatment and placebo
Time Frame: up to 12 hours post meal consumption
A dose of exenatide or placebo is given before the morning meal. After eating the test meal, images will be recorded at approximately 5 minute intervals from ingestion of the test meal until 3 hours after the meal, then every 10 minutes until 6 hours after the meal. In cases where significant radioactivity is observed at 6 hours after the meal, additional scintigraphic images may be taken periodically at the discretion of the investigator, until counts approach low values for up to 12 hours after the meal.
up to 12 hours post meal consumption

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

AstraZeneca

Collaborators

Eli Lilly and Company

Investigators

  • Study Director: James Malone, MD, Eli Lilly and Company

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2005

Primary Completion (Actual)

June 1, 2005

Study Completion (Actual)

June 1, 2005

Study Registration Dates

First Submitted

August 14, 2007

First Submitted That Met QC Criteria

August 14, 2007

First Posted (Estimate)

August 16, 2007

Study Record Updates

Last Update Posted (Estimate)

February 23, 2015

Last Update Submitted That Met QC Criteria

February 20, 2015

Last Verified

January 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • H8O-EW-GWAM

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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