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Completed Phase 2Phase 3 Interventional Results available

The Efficacy of AZD1722 in Constipation Predominant Irritable Bowel Syndrome (IBS-C)

ClinicalTrials.gov ID: NCT01923428

Public ClinicalTrials.gov record NCT01923428. 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, 10:49 AM 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, Double-Blind, Placebo-Controlled Study to Assess the Safety and Efficacy of AZD1722 for the Treatment of Constipation-Predominant Irritable Bowel Syndrome (IBS-C)

Study identification

NCT ID
NCT01923428
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2, Phase 3
Lead sponsor
Ardelyx
Industry
Enrollment
356 participants

Conditions and interventions

Interventions

  • AZD1722 Drug
  • Placebo Drug

Drug

Eligibility (public fields only)

Age range
18 Years to 75 Years
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
Jul 31, 2013
Primary completion
Sep 30, 2014
Completion
Sep 30, 2014
Last update posted
Apr 7, 2020

2013 – 2014

United States locations

U.S. sites
4
U.S. states
3
U.S. cities
4
Facility City State ZIP Site status
Not listed Boulder Colorado
Not listed Greensboro North Carolina
Not listed Winston-Salem North Carolina
Not listed Chattanooga Tennessee

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 NCT01923428, 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 Apr 7, 2020 · Synced Jul 22, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01923428 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →