Recent Updates
Recently added Catalysts

LY3522348

Phase 1

Undisclosed | Small molecule | Other |Eli Lilly and Company|Trials Updated: Nov 4, 2025

LY3522348 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Sep 2020

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment65

FDA Designations

No designations recorded

LY3522348 clinical trials

LY3522348 · 1 trial · 1 indication

Phase 1 1
NCT04559568A Study of LY3522348 in Healthy ParticipantsHealthy
COMPLETED65 Analytics
PHASE1COMPLETED
A Study of LY3522348 in Healthy Participants
HealthyUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With One or More Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration
Part A: Baseline up to Day 14; Part B: Baseline up to Day 28

An SAE is any untoward medical occurrence temporally associated with the use of study intervention that results in death is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth defect or any other situation as determined by investigator. The number of participants with one or more SAEs considered by the investigator to be related to study drug administration is reported here. A summary of SAEs and other non-serious adverse events, regardless of causality, will be reported in the Reported Adverse Events module.

Secondary Endpoints

Part A Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve From Time Zero to the Last Time Point With a Measurable Concentration (AUC(0-tlast)) of LY3522348
Day 1 (Predose, 0.75, 1.5, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96, 144 hours post Day 1 dose)
Part B PK: Area Under the Concentration Versus Time Curve From Time Zero to the Last Time Point With a Measurable Concentration (AUC(0-tlast)) of LY3522348
Day 1 (Predose, 0.75, 1.5, 3, 4, 6, 8, 12, 16, 24 hours post Day 1 dose); Day 14 (Predose, 0.75, 1.5, 3, 4, 6, 8, 12, 16, 24, 48, 72, 96, 144 hours post Day 14 dose)
Part A PK: Maximum Observed Drug Concentration (Cmax) of LY3522348
Day 1 (Predose, 0.75, 1.5, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96, 144 hours post Day 1 dose)
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Part A: PlaceboPLACEBO_COMPARATORA single dose of Placebo administered orally on Day 1.
Part A: 5 milligrams (mg) LY3522348EXPERIMENTALA single dose of 5 mg LY3522348 administered orally on Day 1.
Part A: 15 mg LY3522348EXPERIMENTALA single dose of 15 mg LY3522348 administered orally on Day 1.
Part A: 50 mg LY3522348EXPERIMENTALA single dose of 50 mg LY3522348 administered orally on Day 1.
Part A: 150 mg LY3522348EXPERIMENTALA single dose of 150 mg LY3522348 administered orally on Day 1.
Part A: 380 mg LY3522348EXPERIMENTALA single dose of 380 mg LY3522348 administered orally on Day 1.
Part B: PlaceboPLACEBO_COMPARATORPlacebo administered orally once daily on Days 1-14.
Part B: Placebo + MidazolamEXPERIMENTALPlacebo administered orally once daily on Days 1-15 and a single dose of 200 micrograms (μg) Midazolam administered orally on Days -1 and 15.
Part B: 50 mg LY3522348EXPERIMENTAL50 mg LY3522348 administered orally once daily on Days 1-14.
Part B: 120 mg LY3522348EXPERIMENTAL120 mg LY3522348 administered orally once daily on Days 1-14.
Part B: 290 mg LY3522348 + MidazolamEXPERIMENTAL290 mg LY3522348 administered orally once daily on Days 1-15 and a single dose of 200 μg Midazolam administered orally on Days -1 and 15.

Interventions

NameTypeDescription
LY3522348DRUGAdministered orally.
PlaceboDRUGAdministered orally.
MidazolamDRUGAdministered orally.
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Are overtly healthy as determined through medical evaluation including medical history and physical examination * Have a body mass index of greater than or equal to (≥)18.5 and less than or equal to (≤)40 kilograms per square meter (kg/m²) * Have had a stable weight for one mo...

Countries:United States
Unlock Eligibility Criteria

Frequently asked questions about LY3522348

What is LY3522348?

LY3522348 is an investigational small molecule being developed by Eli Lilly and Company. It has been studied in a Phase 1 clinical trial in healthy adult participants. The specific disease or condition it is intended to treat has not been disclosed.

Who is developing LY3522348?

LY3522348 is being developed by Eli Lilly and Company, which trades on the New York Stock Exchange under the ticker LLY. Lilly sponsored the Phase 1 study of the compound conducted in the United States.

What phase is LY3522348 in?

LY3522348 is in Phase 1 clinical development. One Phase 1 trial has been completed, and no active trials are currently listed. The compound has not been approved by the FDA and remains investigational.

What clinical trials has LY3522348 been studied in?

LY3522348 has been evaluated in a single Phase 1 trial, NCT04559568, titled A Study of LY3522348 in Healthy Participants. The trial enrolled 65 healthy adult volunteers in the United States, was randomized, double-blind, and placebo-controlled, and has been completed.

What was the design of the LY3522348 Phase 1 trial?

The Phase 1 trial NCT04559568 studied LY3522348 in 65 healthy participants aged 18 years and older in the United States. It was a randomized, double-blind, placebo-controlled study. The trial has been completed, and no additional trials are currently active.