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Rifaximin SSD once daily

Phase 2

Overt Hepatic Encephalopathy | Small molecule | Gastrointestinal |Bausch Health Companies Inc.|Last Updated: Apr 13, 2023

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-BlindCONTROLLEDBiomarker
Total Trials1
Total Enrollment71
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03515044Rifaximin Soluble Solid Dispersion (SSD) Tablets Plus Lactulose for the Treatment of Overt Hepatic Encephalopathy (OHE)PHASE2 COMPLETED 71Sep 13, 2018Mar 12, 2020Apr 13, 202334 United States
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Study Endpoints
Primary Endpoints
Time to Overt Hepatic Encephalopathy (OHE) Resolution Determined Using the Hepatic Encephalopathy Grading Instrument (HEGI), Defined as HEGI Score < 2
14 days

A participant was considered to have an overt HE episode if at least one of the following applied: (1) Disorientated to time or place or person, (2) Lethargic and has asterixis, (3) Inability to assess the patient due to disorientation to time and place and person; and/or somnolence, and/or coma. Severity of OHE episodes was graded using the HEGI scale, where Grade 1 is no clinical findings of OHE, and Grade 4 is comatose. Higher scores on the scale have higher severity (worse outcome).

Secondary Endpoints
Time to Improvement in Hepatic Encephalopathy Grading Instrument (HEGI) Score, Defined as at Least One Grade Decrease (Improvement)
14 days
Time to Hospital Discharge
14 days
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Cohort 1 40 mg Rifaximin SSD once dailyEXPERIMENTAL40 mg Rifaximin immediate release (IR) rifaximin SSD once daily (QD) and lactulose
Cohort 2 40 mg Rifaximin SSD twice dailyEXPERIMENTAL40 mg Rifaximin immediate release (IR) rifaximin SSD twice daily (BID) and lactulose
Cohort 3 80 mg Rifaximin SSD once dailyEXPERIMENTAL80 mg Rifaximin sustained extended release (SER) rifaximin SSD once daily (QD) and lactulose
Cohort 4 80 mg Rifaximin SSD twice daiyEXPERIMENTAL80 mg Rifaximin sustained extended release (SER) rifaximin SSD twice daily (BID) and lactulose
Cohort 5 Placebo twice dailyEXPERIMENTALSSD placebo twice daily (BID) and lactulose
Interventions
NameTypeDescription
40 mg Rifaximin SSD once dailyDRUGSSD once daily (QD)
40 mg Rifaximin SSD twice dailyDRUGSSD twice daily (BID)
80 mg Rifaximin SSD once dailyDRUGSSD once daily (QD)
80 mg Rifaximin SSD twice dailyDRUGSSD twice daily (BID)
PlaceboDRUGAdministered twice daily (BID)
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Eligibility Criteria
Age Range18 Years — 75 Years
SexALL
Healthy VolunteersYes
Study Sites34

Inclusion Criteria: * Male or female age 18 to 75 years of age (inclusive) at the time of screening. * Females of childbearing potential, defined as a female who is fertile following menarche, must have a negative serum pregnancy test at screening and agree to use an acceptable method of contracept...

Countries:United States
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