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EFX

Phase 2

NASH - Nonalcoholic Steatohepatitis | Small molecule | Infectious Disease |Akero Therapeutics, Inc.|Last Updated: Apr 9, 2025

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 Trials2
Total Enrollment292
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05039450A Study of Efruxifermin in Subjects With Compensated Cirrhosis Due to Nonalcoholic Steatohepatitis (NASH) (Symmetry)PHASE2 ACTIVE NOT_RECRUITING 182Jul 30, 2021May 1, 2025Apr 9, 202549 United States, Mexico +1
NCT03976401A Study of Efruxifermin in Subjects With Histologically Confirmed Nonalcoholic Steatohepatitis (NASH)PHASE2 COMPLETED 110May 28, 2019Jan 10, 2022Aug 4, 202227 United States, Puerto Rico
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Study Endpoints
Primary Endpoints
Main: Change from baseline in fibrosis with no worsening steatohepatitis assessed by NASH CRN system
Week 36

Proportion of subjects who achieve ≥ 1 stage improvement in fibrosis (based on NASH CRN fibrosis score) and no worsening of steatohepatitis at Week 36.

Main: Absolute Change From Baseline in Hepatic Fat Fraction Assessed by MRI-PDFF at Week 12.
12 weeks

Main study. ANCOVA multiple imputation with treatment group and F1 fibrosis score (F1 vs F2-3) as factors and baseline hepatic fat fraction measured by MRI-PDFF as a covariate.

Secondary Endpoints
Main: Resolution of NASH assessed by the NASH CRN system
Week 36, Week 96
Main: Fibrosis improvement with no worsening of NASH assessed by the NASH CRN system
Week 36, Week 96
Main: Change from baseline in fibrosis in subjects with no worsening of steatohepatitis assessed by the NASH CRN system
Week 96
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
EFX 28 mg (Main Study)EXPERIMENTAL -
EFX 50 mg (Main Study)EXPERIMENTAL -
Placebo (Main Study)PLACEBO_COMPARATOR -
EFX 50 mg (Cohort D)EXPERIMENTAL -
Placebo (Cohort D)PLACEBO_COMPARATOR -
EFX Dose 1EXPERIMENTALMain Study
EFX Dose 2EXPERIMENTALMain Study
EFX Dose 3EXPERIMENTALMain Study
PlaceboPLACEBO_COMPARATORMain Study
EFX Dose (Cohort C)EXPERIMENTAL -
Placebo (Cohort C)PLACEBO_COMPARATOR -
Interventions
NameTypeDescription
EFXDRUGInvestigational drug, Efruxifermin
PlaceboDRUGPlacebo
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Eligibility Criteria
Age Range18 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites49

Inclusion Criteria: * Males and non-pregnant, non-lactating females between 18-75 years of age inclusive, based on the date of signing informed consent. * Main Study Only: Previous history or presence of Type 2 diabetes or 2 out of 4 components of metabolic syndrome (obesity, dyslipidemia, elevated...

Countries:United StatesMexicoPuerto Rico
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT05039450primaryCompletionDate: changed
LOWMay 24, 2026NCT05039450studyFirstPostDate: changed