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A Single-Ascending and Repeated Dose Study of LY3849891 in Participants With Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)

A Single-Ascending and Repeated Subcutaneous Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of LY3849891 in Participants With Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) Who Have the PNPLA3 I148M Genotype

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05395481
Enrollment
115
Registered
2022-05-27
Start date
2022-06-08
Completion date
2026-05-12
Last updated
2026-06-24

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), Metabolic Dysfunction-associated Steatotic Liver Disease (MASLD)

Keywords

Hepatic fibrosis, Biomarkers, Magnetic resonance imaging, Pharmacokinetics, Liver fat

Brief summary

The main purpose of this study is to evaluate the safety and tolerability of the study drug LY3849891 in participants with metabolic dysfunction-associated steatotic liver disease (MASLD) who have the patatin-like phospholipase domain-containing protein 3 (PNPLA3) I148M genotype. Blood tests and magnetic resonance imaging of the liver will be performed to determine the effects of LY3849891 on MASLD and assessment of resolution of liver fibroinflammation. Blood tests will also determine how long it takes the body to eliminate LY3849891. This is a 2-part study and may last up to 32 weeks for each participant and may include 12 visits in parts A and B.

Interventions

DRUGLY3849891

Administered SC

DRUGPlacebo

Administered SC

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Participants must have a body mass index (BMI) within the range greater than or equal to (≥) 25 and less than (\<) 50 kilogram per square meter (kg/m²) inclusive * Participants must have liver fat content ≥10% in Part A and ≥8% for Part B as determined by MRI-PDFF * Participants must be carriers of the PNPLA3 I148M allele * Participants with or without type 2 diabetes mellitus (T2DM) o For participants with T2DM, hemoglobin A1c (HbA1c) \<8% in Part A and \<9% in Part B * Male participants agree to use an effective method of contraception for the duration of the study and for 90 days after the last dose of study intervention * Women not of childbearing potential may participate and include those who are: infertile due to surgical sterilization (hysterectomy, bilateral oophorectomy, or tubal ligation), congenital anomaly such as Mullerian agenesis; or those who are postmenopausal

Exclusion criteria

* Participants must not have known or suspected alcohol abuse (\>14 units/week for women and \>21 units/week for men) or active substance abuse * Participants must not have evidence of cirrhosis or other forms of liver disease * Participants must not have heart attack, stroke, or hospitalization for congestive heart failure in the past 3 months * Participants must not have active cancer within the last 5 years * Participants must not have uncontrolled high blood pressure * Participants must not have renal impairment with estimated glomerular filtration rate (eGFR) \<60 milliliter per minute per 1.73 square meter (ml/min/1.73m²) * Participants must not have a diagnosis of type 1 diabetes * Participants must not have a contraindication to MRI examinations, such as persons with cardiac pacemaker and implants made out of metal (for example, cochlear implant, nerve stimulators, magnetic vascular clips, and metallic heart valve) or other contraindications for MRI

Design outcomes

Primary

MeasureTime frameDescription
Part A: Number of Participants with One or More Treatment Emergent Adverse Events (TEAEs) and Adverse Event(s) (AEs) Considered by the Investigator to be Related to Study Drug AdministrationPredose up to 26 weeks post doseA summary of TEAEs and AEs, regardless of causality, will be reported in the Reported Adverse Events module
Part B: Pharmacodynamics (PD): Mean change from baseline on liver inflammation and fibrosis measured by magnetic resonance imaging (MRI)Baseline through 24 weeksPD: Mean change from baseline on liver inflammation and fibrosis content measured by MRI

Secondary

MeasureTime frameDescription
Part A: PD: Liver fat content measured by magnetic resonance imaging proton density fat fraction (MRI-PDFF)Predose through Week 26Part A: PD: Liver fat content measured by (MRI-PDFF)
Part A: PK: Area Under the Concentration Versus Time Curve from Time Zero to Infinity (AUC(0-inf)) of LY3849891Predose through Week 26Part A: PK: AUC(0-inf) of LY3849891
Part A: Pharmacokinetics (PK): Maximum Observed Concentration (Cmax) of LY3849891Predose through Week 26Part A: PK: Cmax of LY3849891
Part A: PK: Time to Maximum Observed Concentration (Tmax) of LY3849891Predose through Week 26Part A: PK: Tmax of LY3849891
Part B: PD: Liver fat content changes at baseline and specified timepoints by MRI-PDFFPredose through Week 24Part B: PD: Liver fat content changes at baseline and specified timepoints by MRI-PDFF
Part B: PK: AUC(0-inf) of LY3849891 and its MetabolitePredose through Week 24Part B: PK: AUC(0-inf) of LY3849891 and its metabolite
Part B: Pharmacokinetics (PK): Maximum Observed Concentration (Cmax) of LY3849891 and its metabolitePredose through Week 24Part B: PK: Cmax of LY3849891 and its metabolite
Part B: PK: Tmax of LY3849891 and its metabolitePredose through Week 24Part B: PK: Tmax of LY3849891 and its metabolite

Countries

Japan, Puerto Rico, United States

Contacts

STUDY_DIRECTORCall 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 8 AM - 8 PM Eastern time (UTC/GMT - 5 hours, EST)

Eli Lilly and Company

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 25, 2026