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Clinical Trials/NCT07704892
NCT07704892RecruitingPhase 3

A Phase 3, Two-part, Double-blind, Randomized, Placebo-controlled Study to Investigate the Safety and Efficacy of Efimosfermin Alfa Injection in Adult Participants With Compensated Cirrhosis (Stage F4 Fibrosis) Due to Metabolic Dysfunction-associated Steatohepatitis (NEBULA-2)

GlaxoSmithKline13 sites in 2 countries380 target enrollmentStarted: July 22, 2026Last updated:
Conditions
Interventions
Drugs

Trial Snapshot

Phase
Phase 3
Status
Recruiting
Enrollment
380
Locations
13
Primary Endpoint
Part A: Proportion of participants achieving improvement in liver fibrosis by >=1 stage and no worsening of MASH

Study Overview

Brief Summary

This is a multi-center, randomized, two-part (Part A and Part B) study investigating the safety and efficacy of efimosfermin alfa in adult participants with compensated cirrhosis due to MASH. Participants who complete the treatment during Part A of the study and meet the inclusion criteria will have the option to enroll in Part B (open label) of the study.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Triple (Participant, Investigator, Outcomes Assessor)

Masking Description

The Part A of study is a double-blind study

Eligibility Criteria

Ages
18 Years to 75 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Participants aged between 18 and 75 years at enrolment.
  • Participants with history or presence of at least two components of metabolic syndrome.
  • Liver biopsy consistent with cirrhosis (fibrosis stage 4).

Exclusion Criteria

  • Participants with other chronic liver diseases.
  • Participants with evidence or history of decompensated liver disease or hepatocellular carcinoma.
  • Participants with history of Type 1 diabetes mellitus; or major Type 2 diabetes mellitus complications.
  • History or evidence of chronic pancreatic disease; pancreatic injury or acute pancreatitis within 6 months before Screening.
  • A recent history or planned surgical procedures or medications intended to produce significant weight loss.
  • Alanine aminotransferase (ALT) or Aspartate aminotransferase (AST) >= 5 times upper limit normal (ULN).
  • Current or history of excessive alcohol intake

Arms & Interventions

Part A: Participants receiving Efimosfermin alfa

Experimental

Participants will receive efimosfermin alfa in Part A of the study.

Intervention: Efimosfermin alfa (Drug)

Part A: Participants receiving Placebo

Placebo Comparator

Participants will receive placebo in Part A of the study.

Intervention: Placebo (Drug)

Part B: Participants receiving Efimosfermin alfa

Experimental

All participants will receive efimosfermin alfa in Part B of the study.

Intervention: Efimosfermin alfa (Drug)

Outcomes

Primary Outcomes

Part A: Proportion of participants achieving improvement in liver fibrosis by >=1 stage and no worsening of MASH

Time Frame: At Week 96

Participants experiencing improvement in liver fibrosis of \>=1 stage (based on MASH Clinical Research Network (CRN) fibrosis score) and no worsening of MASH (defined as no increase in nonalcoholic fatty liver disease activity score for ballooning, inflammation, or steatosis). MASH CRN fibrosis score ranges from 0 to 4, higher score indicates greater severity.

Secondary Outcomes

  • Part A: Proportion of participants with Treatment-Emergent Adverse Events (TEAEs) and TEAEs by severity(Week 96)
  • Part A: Proportion of participants with TEAEs leading to discontinuation and TEAEs leading to discontinuation by severity(Week 96)
  • Part A: Proportion of participants with Grade 3 and Grade 4 laboratory abnormalities(Week 96)
  • Part A: Proportion of participants achieving change from Baseline in vibration-controlled transient elastography (VCTE)- liver stiffness measurement (LSM) and in enhanced liver fibrosis (ELF) score(Baseline (Day 1) and Week 96)
  • Part A Change from Baseline in VCTE-LSM(Baseline (Day 1) and Week 96)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (13)

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