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Clinical trialNCT02621892CompletedPhase 3Interventional

A 12-Week Study With a 4-Week Randomized Withdrawal Period to Evaluate the Efficacy and Safety of Tenapanor for the Treatment of IBS-C

SponsorArdelyxEnrollment606Constipation Predominant Irritable Bowel Syndrome
View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

111 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • Ardelyx Investigative Site 114

    Birmingham, Alabama, United States

  • Ardelyx Investigative Site 149

    Birmingham, Alabama, United States

  • Ardelyx Investigative Site 100

    Huntsville, Alabama, United States

  • Ardelyx Investigative Site 103

    Huntsville, Alabama, United States

  • Ardelyx Investigative Site 145

    Chandler, Arizona, United States

  • Ardelyx Investigative Site 210

    Phoenix, Arizona, United States

  • Ardelyx Investigative Site 296

    Phoenix, Arizona, United States

  • Ardelyx Investigative Site 277

    Tempe, Arizona, United States

  • Ardelyx Investigative Site 187

    Tucson, Arizona, United States

  • Ardelyx Investigative Site 199

    Tucson, Arizona, United States

  • Ardelyx Investigative Site 269

    Tucson, Arizona, United States

  • Ardelyx Investigative Site 140

    Harrisburg, Arkansas, United States

  • Ardelyx Investigative Site 122

    Little Rock, Arkansas, United States

  • Ardelyx Investigative Site 161

    Little Rock, Arkansas, United States

  • Ardelyx Investigative Site 274

    Little Rock, Arkansas, United States

  • Ardelyx Investigative Site 129

    North Little Rock, Arkansas, United States

  • Ardelyx Investigative Site 105

    Canoga Park, California, United States

  • Ardelyx Investigative Site 143

    Chula Vista, California, United States

  • Ardelyx Investigative Site 146

    Encino, California, United States

  • Ardelyx Investigative Site 147

    Encino, California, United States

  • Ardelyx Investigative Site 107

    Lomita, California, United States

  • Ardelyx Investigative Site 112

    North Hollywood, California, United States

  • Ardelyx Investigative Site 110

    Northridge, California, United States

  • Ardelyx Investigative Site 294

    San Diego, California, United States

  • Ardelyx Investigative Site 108

    Thousand Oaks, California, United States

  • Ardelyx Investigative Site 178

    Cutler Bay, Florida, United States

  • Ardelyx Investigative Site 131

    Fort Lauderdale, Florida, United States

  • Ardelyx Investigative Site 130

    Hialeah, Florida, United States

  • Ardelyx Investigative Site 136

    Hialeah, Florida, United States

  • Ardelyx Investigative Site 287

    Homestead, Florida, United States

  • Ardelyx Investigative Site 106

    Miami, Florida, United States

  • Ardelyx Investigative Site 127

    Miami Lakes, Florida, United States

  • Ardelyx Investigative Site 123

    Miami Springs, Florida, United States

  • Ardelyx Investigative Site 126

    Pompano Beach, Florida, United States

  • Ardelyx Investigative Site 132

    Port Orange, Florida, United States

  • Ardelyx Investigative Site 150

    St. Petersburg, Florida, United States

  • Ardelyx Investigative Site 254

    West Palm Beach, Florida, United States

  • Ardelyx Investigative Site 234

    Athens, Georgia, United States

  • Ardelyx Investigative Site 138

    Atlanta, Georgia, United States

  • Ardelyx Investigative Site 148

    Atlanta, Georgia, United States

71 more sites on the registry record.ClinicalTrials.gov ↗

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
31 Oct 2015
Primary completion
31 Mar 2017
Completion
30 Apr 2017
Last update posted
21 Apr 2020
Registered enrollment
606
Registry id
NCT02621892

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.