Skip to content

A Study of LY4178256 in Healthy Participants

A Phase 1, Placebo-Controlled, Single- and Multiple-Ascending Dose Study to Evaluate Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of LY4178256 in Healthy Participants

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07698210
Enrollment
88
Registered
2026-07-13
Start date
2026-07-16
Completion date
2028-03-01
Last updated
2026-08-20

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

Conditions

Healthy Volunteers

Brief summary

The main purpose of this study is to evaluate how well LY4178256 is tolerated and what side effects may occur in healthy participants. Blood tests will be performed to check how much LY4178256 gets into the bloodstream and how long it takes the body to eliminate it. For each participant, the study will last about 7 months and will include either 7 or 12 visits depending on the assigned treatment.

Interventions

DRUGLY4178256

Administered intravenously (IV)

DRUGPlacebo

Administered IV

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 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Are overtly healthy as determined by medical evaluation including medical history, physical examination, and other screening procedures. * Have a body mass index within the range of 19.0 to 32.0 kilograms per square meter (kg/m²) * Individuals assigned male at birth willing to practice effective contraception throughout the study and individuals assigned female at birth not of childbearing potential may participate in this trial.

Exclusion criteria

* Have significant history of or current cardiovascular, respiratory, renal, gastrointestinal, endocrine, hematological, dermatological, or neurological disorders capable of significantly altering the absorption, metabolism, or elimination of drugs; of constituting a risk when taking the Investigational Medicinal Product (IMP); or of interfering with the interpretation of data. * Have abnormal blood pressure * Have a 12-lead electrocardiogram (ECG) abnormality at screening that, in the opinion of the investigator, increases the risks associated with participating in the study, have a mean QT interval corrected using Fridericia's formula (QTcF) of greater than 450 milliseconds (\>450 msec) for males, or \>470 msec for females. * Regularly use known drugs of abuse or with positive drug results (within the past 3 months). * Have a positive ethanol breath/urine test result or positive urine drugs of abuse screen at screening or check-in. * Have hemoglobin level less than 12 grams per deciliter (\<12 g/dL), or evidence of iron deficiency (ferritin less than 30 nanograms per milliliter (\<30 ng/mL), or history or presence of hemoglobinopathy, or history hemolytic anemia. Participants who received transfusion within the past 12 weeks, or requiring regular transfusion should be excluded. * Have clinically significant abnormal liver function tests at screening: alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphate (ALP), or total bilirubin ≥1.5x upper limit normal (ULN). Participants with confirmed Gilbert's syndrome may be enrolled. * Have significant renal impairment (estimated glomerular filtration rate less than 60 milliliters per minute per square meter (eGFR\<60mL/min/1.73 m ²)).

Design outcomes

Primary

MeasureTime frameDescription
Part A: Number of Participants with One or More Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration.Screening to Day 169A summary of SAEs and other non-serious adverse events (AEs), regardless of causality, will be reported in the Adverse Events module
Part B: Number of Participants with One or More Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration.Screening to Day 197A summary of SAEs and other non-serious adverse events (AEs), regardless of causality, will be reported in the Adverse Events module

Secondary

MeasureTime frameDescription
Part A: Pharmacokinetics: Area Under the Concentration Versus Time Curve (AUC) of LY4178256Predose up to Day 8To evaluate PK after a single dose of LY4178256
Part B: Pharmacokinetics: Area Under the Concentration Versus Time Curve (AUC) of LY4178256Predose up to Day 64To evaluate PK after multiple doses \[LC14.1\]of LY4178256

Countries

United States

Contacts

CONTACTTrial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or
LillyTrials@Lilly.com1-317-615-4559
CONTACTPhysicians interested in becoming principal investigators please contact
clinical_inquiry_hub@lilly.com
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: Aug 21, 2026