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Completed Phase 3 Interventional Results available

Trial of Linaclotide in Patients With Irritable Bowel Syndrome With Constipation (IBS-C)

ClinicalTrials.gov ID: NCT00938717

Public ClinicalTrials.gov record NCT00938717. 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 Jul 22, 2026, 2:12 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 Phase 3, Randomized, Double-blind, Placebo-controlled, Parallel-group Trial of Linaclotide Administered Orally for 26 Weeks in Patients With Irritable Bowel Syndrome With Constipation

Study identification

NCT ID
NCT00938717
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Enrollment
805 participants

Conditions and interventions

Interventions

  • Linaclotide or Matching Placebo Drug

Drug

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
Jun 30, 2009
Primary completion
Aug 31, 2010
Completion
Aug 31, 2010
Last update posted
Nov 4, 2013

2009 – 2010

United States locations

U.S. sites
107
U.S. states
32
U.S. cities
100
Facility City State ZIP Site status
Ironwood Investigational Site Birmingham Alabama 35209
Ironwood Investigational Site Huntsville Alabama 35801
Ironwood Investigational Site Phoenix Arizona 85014
Ironwood Investigational Site Tempe Arizona 85282
Ironwood Investigational Site Tucson Arizona 85710
Ironwood Investigational Site Tucson Arizona 85741
Ironwood Investigational Site Sherwood Arkansas 72120
Ironwood Investigational Site Anaheim California 92801
Ironwood Investigational Site Chula Vista California 91910
Ironwood Investigational Site Encinitas California 92024
Ironwood Investigational Site Garden Grove California 92840
Ironwood Investigational Site Laguna Hills California 92653
Ironwood Investigational Site Orange California 92868
Ironwood Investigational Site San Carlos California 94070
Ironwood Investigational Site San Diego California 92103
Ironwood Investigational Site San Diego California 92108
Ironwood Investigational Site San Diego California 92123
Ironwood Investigational Site Colorado Springs Colorado 80904
Ironwood Investigational Site Bristol Connecticut 06011
Ironwood Investigational Site Boynton Beach Florida 33426
Ironwood Investigational Site Hollywood Florida 33021
Ironwood Investigational Site Inverness Florida 34452
Ironwood Investigational Site Jacksonville Florida 32205
Ironwood Investigational Site Jacksonville Florida 32207
Ironwood Investigational Site Lauderdale Lakes Florida 33319
Ironwood Investigational Site Miami Florida 33156
Ironwood Investigational Site Pinellas Park Florida 33782
Ironwood Investigational Site Tampa Florida 33607
Ironwood Investigational Site Newnan Georgia 30263
Ironwood Investigational Site Peoria Illinois 61602
Ironwood Investigational Site Anderson Indiana 46011
Ironwood Investigational Site Clive Iowa 50325
Ironwood Investigational Site Davenport Iowa 52807
Ironwood Investigational Site Mission Kansas 66202
Ironwood Investigational Site Overland Park Kansas 66215
Ironwood Investigational Site Topeka Kansas 66606
Ironwood Investigational Site Baton Rouge Louisiana 70809
Ironwood Investigational Site Metairie Louisiana 70006
Ironwood Investigational Site Monroe Louisiana 71201
Ironwood Investigational Site Shreveport Louisiana 71103
Ironwood Investigational Site Annapolis Maryland 21401
Ironwood Investigational Site Baltimore Maryland 21215
Ironwood Investigational Site Hollywood Maryland 20636
Ironwood Investigational Site Laurel Maryland 20707
Ironwood Investigational Site Chesterfield Michigan 48047
Ironwood Investigational Site Traverse City Michigan 49684
Ironwood Investigational Site Troy Michigan 48098
Ironwood Investigational Site Plymouth Minnesota 55446
Ironwood Investigational Site Jackson Mississippi 39202
Ironwood Investigational Site Tupelo Mississippi 38801
Ironwood Investigational Site Jefferson City Missouri 65109
Ironwood Investigational Site Marlton New Jersey 08053
Ironwood Investigational Site Albuquerque New Mexico 87108
Ironwood Investigational Site Mineola New York 11501
Ironwood Investigational Site Pittsford New York 14534
Ironwood Investigational Site Asheboro North Carolina 27203
Ironwood Investigational Site Asheville North Carolina 28801
Ironwood Investigational Site Chapel Hill North Carolina 27599
Ironwood Investigational Site Charlotte North Carolina 28209
Ironwood Investigational Site Charlotte North Carolina 28211
Ironwood Investigational Site Greensboro North Carolina 27401
Ironwood Investigational Site Greensboro North Carolina 27408
Ironwood Investigational Site Harrisburg North Carolina 28075
Ironwood Investigational Site Hickory North Carolina 28602
Ironwood Investigational Site Huntersville North Carolina 28078
Ironwood Investigational Site New Bern North Carolina 28562
Ironwood Investigational Site Statesville North Carolina 28625
Ironwood Investigational Site Winston-Salem North Carolina 27103
Ironwood Investigational Site Beachwood Ohio 44122
Ironwood Investigational Site Cincinnati Ohio 45224
Ironwood Investigational Site Cincinnati Ohio 45242
Ironwood Investigational Site Dayton Ohio 45440
Ironwood Investigational Site Mentor Ohio 44060
Ironwood Investigational Site Sylvania Ohio 43560
Ironwood Investigational Site Wadsworth Ohio 44281
Ironwood Investigational Site Oklahoma City Oklahoma 73116
Ironwood Investigational Site Yukon Oklahoma 73099
Ironwood Investigational Site Lancaster Pennsylvania 17604
Ironwood Investigational Site Levittown Pennsylvania 19056
Ironwood Investigational Site Reading Pennsylvania 19606
Ironwood Investigational Site Sellersville Pennsylvania 18960
Ironwood Investigational Site Washington Pennsylvania 15301
Ironwood Investigational Site Anderson South Carolina 29621
Ironwood Investigational Site Charleston South Carolina 29414
Ironwood Investigational Site Simpsonville South Carolina 29581
Ironwood Investigational Site Summerville South Carolina 29485
Ironwood Investigational Site Bristol Tennessee 37620
Ironwood Investigational Site Chattanooga Tennessee 37404
Ironwood Investigational Site Germantown Tennessee 38183
Ironwood Investigational Site Kingsport Tennessee 37660
Ironwood Investigational Site Nashville Tennessee 37203
Ironwood Investigational Site Beaumont Texas 77701
Ironwood Investigational Site El Paso Texas 79905
Ironwood Investigational Site Fort Worth Texas 76104
Ironwood Investigational Site Houston Texas 77024
Ironwood Investigational Site Irving Texas 75061
Ironwood Investigational Site Longview Texas 75605
Ironwood Investigational Site San Antonio Texas 78229
Ironwood Investigational Site Sugarland Texas 77479
Ironwood Investigational Site Ogden Utah 84405
Ironwood Investigational Site Salt Lake City Utah 84107
Ironwood Investigational Site Chesapeake Virginia 23320
Ironwood Investigational Site Lynchburg Virginia 24502
Ironwood Investigational Site Spokane Washington 99208
Ironwood Investigational Site Vancouver Washington 98664
Ironwood Investigational Site La Crosse Wisconsin 54601
Ironwood Investigational Site Milwaukee Wisconsin 53215

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

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00938717, 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 Nov 4, 2013 · Synced Jul 22, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00938717 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →