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A Study of LY4268989 (MORF-057) in Healthy Participants

A Phase 1 Study to Further Investigate the Pharmacokinetics, Safety and Tolerability, Food Effect and Drug-Drug Interaction of LY4268989 (MORF-057) in Healthy Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06964776
Enrollment
144
Registered
2025-05-09
Start date
2025-05-01
Completion date
2026-02-17
Last updated
2026-03-27

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

Conditions

Healthy

Brief summary

The purpose of this study is to measure the body's absorption and processing of the study drug, the study drug's effect on the body, safety, and tolerability with LY4268989 (MORF-57) in healthy participants, including Japanese and Chinese participants

Interventions

Administered orally

DRUGPlacebo

Administered placebo

DRUGMidazolam

Administered orally

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

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

Masking description

Cohort 1, 4 and 5 are blinded while Cohort 2, 3, 6, 7, and 8 are open label.

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Are healthy as determined by medical evaluation including medical history, physical examination, laboratory test, electrocardiograms (ECGs), and vital signs. * Cohort 5 includes Japanese participants. To qualify, the participants must be first-generation Japanese in the US, defined as the participant's biological parents, and all the participant's biological grandparents, being of exclusive Japanese descent, and being born in Japan. * Cohort 5 includes Chinese participants. To qualify as Chinese for this study, all 4 of the participant's biological grandparents must be of exclusive Chinese descent and born in China. * Have a body mass index within the range of 18.0 to 32.0 kilogram/square meter (kg/m²), inclusive, at screening.

Exclusion criteria

* Have a current or recent acute, active infection. For at least 30 days before screening and up to Day 1, participants must have no symptoms or signs of confirmed or suspected infection, and must have completed any appropriate anti-infective treatment. * Have presence of significant uncontrolled respiratory, cerebrocardiovascular, cardiovascular, hepatic, renal, gastrointestinal, endocrine, hematologic, neurologic or psychiatric disorders, or abnormal laboratory values at screening that, in the opinion of the sponsor or investigator, pose an unacceptable risk to the participant if participating in the study or of interfering with the interpretation of data. * Are immunocompromised to an extent that participation in the study would pose an unacceptable risk to the participant as determined by the investigator. * Use or intend to use prescription or nonprescription medication, including dietary supplements, vitamins, herbal supplements, traditional Chinese medicine, or alternative medicines, within 14 days or 5 half-lives (whichever is longer), prior to dosing, unless, in the opinion of the investigator and sponsor, the medication will not interfere with the study

Design outcomes

Primary

MeasureTime frameDescription
Pharmacokinetics (PK): Maximum Concentration (Cmax) of LY4268989 (Cohort 1) and (Cohort 5)Day 1 to Day 17
PK: Area Under the Concentration Curve (AUC) of LY4268989 (Cohort 1) and (Cohort 5)Day 1 to Day 17
Number of Participants with Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) (Cohort 1), (Cohort 3), and (Cohort 5)Baseline to Study Completion (Up to Day 17)A summary of TEAEs, SAEs and other non-serious adverse events (AEs), regardless of causality, will be reported in the reported adverse events module
Number of Participants with TEAEs and SAEs (Cohort 4)Baseline to Study Completion (Up to Period 4, Day 4)A summary of TEAEs, SAEs and other non-serious adverse events (AEs), regardless of causality, will be reported in the reported adverse events module
PK: Cmax of LY4268989 (Cohort 2)Day 1 to Day 13
PK: AUC of LY4268989 (Cohort 2)Day 1 to Day 13
PK: AUC of Midazolam and 1'-Hydroxymidazolam (Cohort 3)Day 1 to Day 17PK of midazolam and 1'-hydroxymidazolam (AUC), where midazolam is administered alone and in the presence of LY4268989
PK: AUC of Midazolam and 1'-Hydroxymidazolam (Cohort 8)Day 3 and Day 11PK of midazolam and 1'-hydroxymidazolam (AUC), where midazolam is administered alone and in the presence of LY4268989
PK: Cmax of Midazolam and 1'-Hydroxymidazolam (Cohort 3)Day 1 to Day 17PK of midazolam and 1'-hydroxymidazolam (Cmax), when midazolam is administered alone and in the presence of LY4268989
PK: Cmax of Midazolam and 1'-Hydroxymidazolam (Cohort 8)Day 3 to Day 11PK of midazolam and 1'-hydroxymidazolam (Cmax), when midazolam is administered alone and in the presence of LY4268989
PK: Cmax of LY4268989 (Cohort 6)Day 1 to Day 7
PK: AUC of LY4268989 (Cohort 6)Day 1 to Day 7
PK: Cmax of LY4268989 (Cohort 7)Day 1 to Day 12
PK: AUC of LY4268989 (Cohort 7)Day 1 to Day 12

Secondary

MeasureTime frame
PK: Cmax of LY4268989 (Cohort 4)Day 1 to Day 4
PK: AUC of LY4268989 (Cohort 4)Day 1 to Day 4
PK: Cmax of LY4268989 (Cohort 3)Time Frame: Day 6 to Day 15
PK: AUC of LY4268989 (Cohort 3)Time Frame: Day 6 to Day 15
PK: Cmax of LY4268989 (Cohort 8)Time Frame: Day 3 and Day 10
PK: AUC of LY4268989 (Cohort 8)Time Frame: Day 3 and Day 10

Countries

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: Mar 28, 2026