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A Phase 3, Randomized, Double-Blind, Placebo-Controlled, 3-Arm Study to Investigate the Safety and Tolerability of Efimosfermin Alfa in Participants With Known or Suspected F2- or F3-Stage Metabolic Dysfunction-Associated Steatohepatitis (MASH) (ZENITH-2)

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-523674-16-00
Enrollment
66
Registered
2026-06-12
Start date
Unknown
Completion date
Unknown
Last updated
2026-06-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metabolic Dysfunction-Associated Steatohepatitis (MASH)

Brief summary

For all participants at Week 52, incidence and severity of TEAEs., For all participants at Week 52, incidence and severity of TEAEs leading to discontinuation., For all participants at Week 52, incidence of Grade 3 and Grade 4 laboratory abnormalities.

Detailed description

Absolute and relative change from baseline to Week 52 in ELF score for all participants., Achieving an improvement in ELF score of ≥ 0.5., Absolute and relative change from baseline to Week 52 in VCTE-LSM scores for all participants., Achieving a change from baseline in VCTE-LSM ≥ 30% at Week 52., Absolute and relative change from baseline to Week 52 in the subset of participants with MRE scores., Absolute and relative change from baseline to Week 52 in HFF by MRI-PDFF for all participants., Absolute and relative change from baseline to Week 52 in ALT, AST, and ALT/AST ratio for all participants., Achieving ALT and HFF normalization at Week 52., Achieving HFF ≤ 5% at Week 52., Change from baseline to Week 52 in HbA1c for participants with T2DM., Change from baseline to Week 52 in body weight for all participants., Change from baseline in fasting total cholesterol, LDL-C, HDL-C, and fasting triglycerides at Week 52 for all participants., Incidence of ADAs at Week 52., Efimosfermin serum concentrations in participants with PK data following multiple doses.

Interventions

DRUGPlacebo for Efimosfermin alfa

Sponsors

Glaxosmithkline Research & Development Limited
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
For all participants at Week 52, incidence and severity of TEAEs., For all participants at Week 52, incidence and severity of TEAEs leading to discontinuation., For all participants at Week 52, incidence of Grade 3 and Grade 4 laboratory abnormalities.

Secondary

MeasureTime frame
Absolute and relative change from baseline to Week 52 in ELF score for all participants., Achieving an improvement in ELF score of ≥ 0.5., Absolute and relative change from baseline to Week 52 in VCTE-LSM scores for all participants., Achieving a change from baseline in VCTE-LSM ≥ 30% at Week 52., Absolute and relative change from baseline to Week 52 in the subset of participants with MRE scores., Absolute and relative change from baseline to Week 52 in HFF by MRI-PDFF for all participants., Absolute and relative change from baseline to Week 52 in ALT, AST, and ALT/AST ratio for all participants., Achieving ALT and HFF normalization at Week 52., Achieving HFF ≤ 5% at Week 52., Change from baseline to Week 52 in HbA1c for participants with T2DM., Change from baseline to Week 52 in body weight for all participants., Change from baseline in fasting total cholesterol, LDL-C, HDL-C, and fasting triglycerides at Week 52 for all participants., Incidence of ADAs at Week 52., Efimosfermin serum

Outcome results

None listed

Source: EU CTIS · Data processed: Jun 13, 2026