Effects of Tolterodine, a Non-Specific Muscarinic Antagonist, on Gastrointestinal Transit in Healthy Subjects

March 21, 2011 updated by: Mayo Clinic
The muscarinic antagonist tolterodine is widely used treat urinary urge incontinence. Though acteylcholine is the primary excitatory neurotransmitter in the gastrointestinal tract, the phase III trials suggest that tolterodine infrequently causes constipation. Therefore, the objectives of this study are to assess if tolterodine affects the speed at which food travels through the stomach, intestines and colon (i.e., gastrointestinal and colonic transit) in healthy subjects.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The specific aims of this study are to test the hypotheses that the non-specific muscarinic antagonist tolterodine will not:- i) delay colonic transit and the proximal colonic emptying rate; ii) delay gastric emptying; nor iii) delay small intestinal transit compared to placebo in healthy subjects.

Study Type

Interventional

Enrollment

36

Phase

  • Phase 2

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

  • United States
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic

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

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Age 18-70 years old. Absence of gastrointestinal symptoms as characterized by bowel symptoms questionnaire and absence of significant anxiety or depression characterized by a hospital anxiety and depression questionnaire.

Able to understand and willing to sign informed consent. Females who are nonpregnant, nonlactating, and willing to use a clinically approved methods of contraception two weeks prior to Day 0 until 1 week after the last dose of study medication.

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: Parallel Assignment
  • Masking: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Colonic transit (as measured by GC24)

Secondary Outcome Measures

Outcome Measure
Colonic transit (GC48)
Ascending colon emptying t1/2
Colonic filling at 6 hours, i.e. a surrogate marker of small bowel transit time
Gastric emptying time (1, 2, 4 hours, thalf)
Average number of stools per day before and during treatment

Collaborators and Investigators

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

Sponsor

Mayo Clinic

Collaborators

Pfizer

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

September 1, 2005

Primary Completion (Actual)

August 1, 2007

Study Completion (Actual)

August 1, 2007

Study Registration Dates

First Submitted

May 30, 2006

First Submitted That Met QC Criteria

May 31, 2006

First Posted (Estimate)

June 1, 2006

Study Record Updates

Last Update Posted (Estimate)

March 23, 2011

Last Update Submitted That Met QC Criteria

March 21, 2011

Last Verified

March 1, 2011

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1696-05

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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