Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Terminated Phase 3 Interventional Results available

A Trial of IW-3718 for 8 Weeks in Patients With Persistent Gastroesophageal Reflux Disease (GERD) Receiving Proton Pump Inhibitors (PPIs)

ClinicalTrials.gov ID: NCT03561090

Public ClinicalTrials.gov record NCT03561090. 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 Oct 20, 2026, 8:50 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 Phase 3, Randomized, Double-blind, Placebo-controlled, Parallel-group, Multicenter Trial of Oral IW-3718 Administered to Patients With Gastroesophageal Reflux Disease While Receiving Proton Pump Inhibitors

Brief summary

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

The objective of this study is to evaluate the safety and efficacy of IW-3718 administered to patients with GERD who continue to have persistent symptoms, such as heartburn and regurgitation, while receiving once-daily (QD), standard-dose PPIs.

Study identification

NCT ID
NCT03561090
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Enrollment
495 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
Jun 20, 2018 (Actual)
Primary completion
Oct 7, 2020 (Actual)
Completion
Nov 3, 2020 (Actual)
Last update posted
Aug 19, 2021

2018 – 2020

United States locations

U.S. sites
93
U.S. states
33
U.S. cities
84
Facility City State ZIP Site status
Pinnacle Research Group Anniston Alabama 36207 —
Alabama Medical Group, PC Mobile Alabama 36608 —
Elite Clinical Studies Phoenix Arizona 85018 —
Adobe Clinical Research LLC Tucson Arizona 85712 —
Applied Research Center Little Rock Arkansas 72212 —
Arkansas Gastroenterology North Little Rock Arkansas 72117 —
Anaheim Clinical Trials LLC - ERN-PPDS Anaheim California 92801 —
GW Research, Inc. Chula Vista California 91910 —
Kindred Medical Institute for Clinical Trials, LLC Corona California 92879 —
Facey Medical Foundation Mission Hills California 91345 —
Northern California Research Corp Sacramento California 95821 —
Digestive Care Center San Carlos California 94070 —
Precision Research Institute San Diego California 92114 —
Medical Associates Research Group, Inc. San Diego California 92123 —
Stanford University School of Medicine Stanford California 94305 —
University of Colorado Hospital Aurora Colorado 80045 —
Gastroenterology Associates of Fairfield County Bridgeport Connecticut 06606 —
Connecticut Clinical Research Foundation Bristol Connecticut 06010 —
Chase Medical Research LLC Waterbury Connecticut 06708 —
West Central Gastroenterology, LLP Clearwater Florida 33756 —
Avail Clinical Research LLC DeLand Florida 32720 —
University of Florida Gainesville Florida 32610 —
Mayo Clinic Jacksonville - PPDS Jacksonville Florida 32224 —
Borland Groover Clinic Jacksonville Florida 32256 —
Health Awareness Inc - MRA Jupiter Florida 33458 —
Millennium Clinical Research Inc-Miami Miami Florida 33125 —
Advanced Research Institute, Inc New Port Richey Florida 34653 —
Legacy Clinical Solutions: Sensible HealthCare, LLC - BTC - PPDS Ocoee Florida 34761 —
Advanced Gastroenterology Associates, LLC Palm Harbor Florida 34684 —
Pines Clinical Research Inc Pembroke Pines Florida 33028 —
DMI Research Pinellas Park Florida 33782 —
Palm Beach Research Center West Palm Beach Florida 33409 —
Atlanta Center For Gastroenterology PC Decatur Georgia 30033 —
Gastroenterology Associates of Central Georgia, LLC Macon Georgia 31201 —
Avicenna-DM Clinical Research Oak Lawn Illinois 60453 —
Iowa Digestive Disease Center Clive Iowa 50325 —
West Glen GI Shawnee Mission Kansas 66217 —
Cotton O'Neil Clinical Research Center Topeka Kansas 66606 —
CroNOLA, LLC. Houma Louisiana 70360 —
Clinical Trials Management LLC Mandeville Louisiana 70471 —
Tandem Clinical Research, LLC Marrero Louisiana 70072 —
Alan A Rosen MD PA Baltimore Maryland 21215 —
Elligo Health Research Frederick Maryland 21701 —
Meritus Center For Clinical Research Hagerstown Maryland 21742 —
Massachusetts General Hospital Boston Massachusetts 02114 —
Beth Israel Deaconess Medical Center Boston Massachusetts 02215 —
Clinical Research Institute of Michigan Chesterfield Michigan 48047 —
Minnesota Gastroenterology, P.A. Plymouth Minnesota 55446 —
Clinical Research Professionals Chesterfield Missouri 63141 —
Kansas City Gastroenterology and Hepatology Kansas City Missouri 64131 —
Advanced Research Institute - Reno Reno Nevada 89511 —
AGA Clinical Research Associates, LLC. - MRA Egg Harbor New Jersey 08234 —
Lovelace Scientific Resources Inc Albuquerque New Mexico 87108 —
NYU School of Medicine Great Neck New York 11021 —
Beth Israel Medical Center New York New York 10003 —
Manhattan Medical Research Practice PLLC New York New York 10016 —
Weill Cornell Medical College New York New York 10021 —
Orchard Park Family Practice Orchard Park New York 14127 —
Medication Management LLC Greensboro North Carolina 27405 —
Peters Medical Research, LLC High Point North Carolina 27262 —
East Carolina Gastroenterology Jacksonville North Carolina 28546 —
Wake Endoscopy Center Raleigh North Carolina 27607 —
Wake Research Associates, LLC Raleigh North Carolina 27612 —
Consultants For Clinical Research Inc Cincinnati Ohio 45219 —
Cleveland Clinic Cleveland Ohio 44195 —
Aventiv Research, Inc. Columbus Ohio 43213 —
Great Lakes Gastroenterology Research, LLC Mentor Ohio 44060 —
Digestive Disease Specialists, Inc. Oklahoma City Oklahoma 73112 —
Legacy Research Institute Portland Oregon 97232 —
Veterans Research Foundation of Pittsburgh - NAVREF Pittsburgh Pennsylvania 15240 —
Consultants of Gastroenterology Columbia South Carolina 29203 —
WR - ClinSearch, LLC Chattanooga Tennessee 37421 —
Gastro One Germantown Tennessee 38138 —
Multi Specialty Clinical Research Johnson City Tennessee 37601 —
Vanderbilt University Medical Center Nashville Tennessee 37232 —
Advanced Gastroenterology-Union City Union City Tennessee 38237 —
Dallas VA Medical Center - NAVREF Dallas Texas 75231 —
Digestive Health Associates of Texas Garland Texas 75044 —
Biopharma Informatic Inc. Houston Texas 77043 —
Southwest Clinical Trials Houston Texas 77074 —
Research Consultants Houston Texas 77084 —
Houston Digestive Diseases Clinic Houston Texas 77090 —
Pearland Physicians Pearland Texas 77581 —
Quality Research Inc San Antonio Texas 78209 —
Texas Digestive Disease Consultants Southlake Texas 76092 —
Advanced Research Institute Ogden Utah 84405 —
Aspen Clinical Research LLC - MRA Orem Utah 84058 —
New River Valley Research Institute Christiansburg Virginia 24073 —
GI Associates Gainesville Gainesville Virginia 20155 —
Blue Ridge Medical Research Lynchburg Virginia 24502 —
Washington Gastroenterology Bellevue Washington 98004 —
Mayo Clinic Health System - Franciscan Healthcare - PPDS La Crosse Wisconsin 54601 —
Wisconsin Center for Advanced Research Division of GI Associates 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.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 6 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03561090, 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 Aug 19, 2021 · Synced Oct 20, 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 public registry record, listed eligibility criteria, and available contact information for NCT03561090 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →