Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 2 Interventional Results available

Dose-range-finding, Phase 2 Trial of Oral Linaclotide Acetate Administered to Patients With Chronic Constipation

ClinicalTrials.gov ID: NCT00402337

Public ClinicalTrials.gov record NCT00402337. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 4, 2026, 8:35 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Randomized, Multicenter, Double-blind, Placebo-controlled, Dose-range-finding, Parallel-group, Phase 2 Trial of Oral Linaclotide Acetate Administered to Patients With Chronic Constipation

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The primary purpose of this study is to evaluate the efficacy and safety of administration of linaclotide acetate in patients with chronic constipation.

Study identification

NCT ID
NCT00402337
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Enrollment
310 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 31, 2006
Primary completion
Nov 30, 2007
Completion
Jan 31, 2008
Last update posted
Mar 4, 2013

2006 – 2008

United States locations

U.S. sites
60
U.S. states
30
U.S. cities
58
Facility City State ZIP Site status
Microbia Investigational Site Huntsville Alabama 35801
Microbia Investigational Site Tucson Arizona 85715
Microbia Investigational Site Sherwood Arkansas 72120
Microbia Investigational Site Anaheim California
Microbia Investigational Site Sacramento California
Microbia Investigational Site San Diego California
Microbia Investigational Site Boulder Colorado
Microbia Investigational Site Bristol Connecticut 06011
Microbia Investigational Site Boynton Beach Florida
Microbia Investigational Site Port Orange Florida
Microbia Investigational Site Tampa Florida
Microbia Investigational Site Stockbridge Georgia 30281
Microbia Investigational Site Peoria Illinois 61602
Microbia Investigational Site Indianapolis Indiana 46237
Microbia Investigational Site Clive Iowa
Microbia Investigational Site Davenport Iowa
Microbia Investigational Site Louisville Kentucky
Microbia Investigational Site Monroe Louisiana 71201
Microbia Investigational Site Silver Spring Maryland 20901
Microbia Investigational Site Boston Massachusetts
Microbia Investigational Site Ann Arbor Michigan
Microbia Investigational Site Traverse City Michigan 49684
Microbia Investigational Site Olive Branch Mississippi
Microbia Investigational Site Lincoln Nebraska
Microbia Investigational Site Great Neck New York
Microbia Investigational Site Pittsford New York
Microbia Investigational Site Asheville North Carolina 28801
Microbia Investigational Site Chapel Hill North Carolina 9199668328
Microbia Investigational Site Charlotte North Carolina 28075
Microbia Investigational Site Fayetteville North Carolina
Microbia Investigational Site Greensboro North Carolina
Microbia Investigational Site Raleigh North Carolina 27612
Microbia Investigational Site Winston-Salem North Carolina 27103
Microbia Investigational Site Cincinnati Ohio
Microbia Investigational Site Dayton Ohio 45440
Microbia Investigational Site Oklahoma City Oklahoma 73104
Microbia Investigational Site Oklahoma City Oklahoma 73112
Microbia Investigational Site Oklahoma City Oklahoma 73116
Microbia Investigational Site Tulsa Oklahoma 74104
Microbia Investigational Site Pittsburgh Pennsylvania
Microbia Investigational Site Sellersville Pennsylvania
Microbia Investigational Site Anderson South Carolina
Microbia Investigational Site Columbia South Carolina
Microbia Investigational Site Simpsonville South Carolina
Microbia Investigational Site Summerville South Carolina 29485
Microbia Investigational Site Bristol Tennessee
Microbia Investigational Site Chattanooga Tennessee
Microbia Investigational Site Germantown Tennessee
Microbia Investigational Site Jackson Tennessee 38301
Microbia Investigational Site Austin Texas 78745
Microbia Investigational Site Corsicana Texas 75110
Microbia Investigational Site El Paso Texas
Microbia Investigational Site San Antonio Texas
Microbia Investigational Site Ogden Utah
Microbia Investigational Site Chesapeake Virginia 23320
Microbia Investigational Site Lynchburg Virginia 24502
Microbia Investigational Site Olympia Washington
Microbia Investigational Site Spokane Washington
Microbia Investigational Site La Crosse Wisconsin 54601
Microbia Investigational Site Madison Wisconsin

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Recently updated Chronic Constipation trials

Other public records listing Chronic Constipation. Sorted by last update posted; newest first. Not a recommendation.

All Chronic Constipation trials →

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00402337, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 4, 2013 · Synced Sep 4, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00402337 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →