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IW-3718

Phase 3

Gastroesophageal Reflux Disease (GERD) | Small molecule | Gastrointestinal |Ironwood Pharmaceuticals, Inc.|Last Updated: Aug 18, 2021

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment609
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03561883Trial of IW-3718 for 8 Weeks in Patients With Persistent Gastroesophageal Reflux Disease (GERD) Receiving Proton Pump Inhibitors (PPIs)PHASE3 COMPLETED 609Sep 6, 2018Nov 6, 2020Aug 18, 2021101 United States, Canada
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Study Endpoints
Primary Endpoints
Change From Baseline in WHSS at Week 8
Baseline, Week 8

The WHSS is defined as the weekly average of the DHSS. The DHSS for a day is the greater of the 2 items assessing heartburn severity (Item #1 "Burning feeling behind the breastbone or in the center of the upper stomach" and Item #2 "Pain behind the breastbone or in the center of the upper stomach"). The DHSS items are assessed on a 5-point ordinal scale, where 0=Did Not Have, 1=Very Mild, 2=Mild, 3=Moderate, 4=Moderately Severe, and 5=Severe; higher scores indicate worse symptoms. A negative change from baseline indicates improvement.

Secondary Endpoints
Change From Baseline in Weekly Regurgitation Frequency Score (WRFS) at Week 8
Baseline, Week 8
Percentage of Participants Who Were Overall Heartburn Responders During the 8-Week Treatment Period
Up to Week 8
Proportion of Heartburn-Free Days During the 8-Week Treatment Period
Up to Week 8
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
1500 mg IW-3718 BIDEXPERIMENTALThree 500 mg IW-3718 tablets administered twice daily (BID), immediately after the morning and evening meals. Standard-dose PPIs administered QD approximately 30-60 minutes before the morning meal each day.
PlaceboPLACEBO_COMPARATORThree placebo tablets administered BID immediately after the morning and evening meals. Standard-dose PPIs administered QD approximately 30-60 minutes before the morning meal each day.
Interventions
NameTypeDescription
IW-3718DRUGoral tablet
placeboDRUGoral tablet
Standard-dose PPIs QDDRUGbackground therapy
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites101

Inclusion Criteria: Each patient must meet all of the following criteria to be eligible for enrollment in this study: * Patient is an ambulatory male or female (if female, nonpregnant) and is at least 18 years old at the Screening Visit. * Patient has a diagnosis of GERD and reports experiencing G...

Countries:United StatesCanada
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