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LY3039478 Formulation

Phase 1

Healthy | Small molecule | Other |Eli Lilly and Company|Last Updated: Aug 12, 2025

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials3
Total Enrollment47

FDA Designations

No designations recorded

Clinical trial landscape

LY3039478 Formulation · 3 trials · 1 indication

Phase 1 3
NCT02906618Study of LY3039478 in Healthy ParticipantsHealthy
COMPLETED12 Analytics
NCT02917733A Study of the Absorption, Distribution, Metabolism and Excretion of LY3039478 in Healthy ParticipantsHealthy
COMPLETED6 Analytics
NCT02659865A Study of LY3039478 in Healthy ParticipantsHealthy
COMPLETED29 Analytics
PHASE1COMPLETED
Study of LY3039478 in Healthy Participants
HealthyUnlock trial analytics
PHASE1COMPLETED
A Study of the Absorption, Distribution, Metabolism and Excretion of LY3039478 in Healthy Participants
HealthyUnlock trial analytics
PHASE1COMPLETED
A Study of LY3039478 in Healthy Participants
HealthyUnlock trial analytics

Study Endpoints

Primary Endpoints

Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve (AUC) From Time Zero to the Last Time Point With a Measurable Concentration (AUC[0-tlast]) of LY3039478 and 13C 15N 2H-LY3039478
Predose, 0.5, 1, 1.5, 2, 2.5, 3.5, 4, 6, 8, 12, 24, 36, 48 Hours Postdose

Pharmacokinetics (PK) is the area under the concentration versus time curve (AUC) from time zero to the last time point with a measurable concentration (AUC\[0-tlast\]) of LY3039478 and 13C 15N 2H-LY3039478.

PK: AUC From Zero to Infinity (AUC[0 - Inf]) of LY3039478 and 13C 15N 2H-LY3039478
Predose, 0.5, 1, 1.5, 2, 2.5, 3.5, 4, 6, 8, 12, 24, 36, 48 Hours Postdose

PK is AUC from zero to infinity (AUC\[0 - inf\]) of LY3039478 and 13C 15N 2H-LY3039478.

Urinary and Fecal Excretion of Radioactivity Over Time Expressed as a Percentage of the Total Radioactive Dose Administered
Predose, and at 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, and 312 hours postdose

To determine the disposition of radioactivity and LY3039478 in healthy participants following oral administration of a single dose 14C-labeled LY3039478.

Pharmacokinetics (PK): Mean Time-Matched Difference in Placebo-Adjusted QTcF Interval With Time Matched Concentrations Between LY3039478 Capsule Formulation (Formulation 3) Part A
Predose, 0.5, 1, 2, 3, 4, 6, 8,12, 24, 36, 48 Hours Postdose

PK: mean time-matched difference in QTcF interval with time-matched concentrations between LY3039478 capsule formulation (formulation 3) compared to placebo. Analyses of QTcF was assessed by the mean change in QTcF as a function of plasma drug concentration. Triplicate measures at each time point was averaged prior to analysis. The primary analysis was based on the time-matched placebo-adjusted QTcF (ΔQTcF) for each time point, which was calculated by subtracting each participant's time-matched placebo QTcF from their QTcF results after receiving LY3039478. The relationship between plasma concentrations of LY3039478 and ΔQTcF was evaluated using a linear mixed-effects modeling approach. The response variable was ΔQTcF, and concentrations was fitted as a fixed effect with participants as a random effect. The regression slope was presented with the unit in "milliseconds per nanogram per milliliter" abbreviated as "ms/ng/mL".

Secondary Endpoints

PK: Maximum Observed Drug Concentration (Cmax) of LY3039478 and 13C 15N 2H-LY3039478 - IV
Predose, 0.5, 1, 1.5, 2, 2.5, 3.5, 4, 6, 8, 12, 24, 36, 48 Hours Postdose
PK: Time of Cmax (Tmax) of LY3039478 and 13C 15N 2H-LY3039478
Predose, 0.5, 1, 1.5, 2, 2.5, 3.5, 4, 6, 8, 12, 24, 36, 48 Hours Postdose
PK: Half Life Associated With The Terminal Rate Constant (t1/2) of LY3039478 and 13C 15N 2H-LY3039478
Predose, 0.5, 1, 1.5, 2, 2.5, 3.5, 4, 6, 8, 12, 24, 36, 48 Hours Postdose
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
LY3039478 - OralEXPERIMENTALLY3039478 given once, orally
13C 15N 2H-LY3039478 - IVEXPERIMENTAL13C 15N 2H-LY3039478 given once, IV
Radiolabelled LY3039478EXPERIMENTALSingle dose of radiolabelled LY3039478 administered orally.
Part A: PlaceboPLACEBO_COMPARATORSingle oral dose of placebo administered in one of three study periods
Part A: LY3039478 Capsule Formulation (Formulation 3)EXPERIMENTALEscalating single oral dose of 25 milligram (mg), 50 mg, and 75 mg capsule formulation (formulation 3) LY3039478 administered in two of three study periods
Part B: LY3039478 Drug-In Capsule (Reference, Formulation 1)EXPERIMENTALSingle oral 50 mg dose of drug-in capsule (reference, formulation 1) LY3039478 administered in one of two study periods
Part B: LY3039478 Formulated Capsule (Test, Formulation 3)EXPERIMENTALSingle oral 50 mg dose of formulated capsule (test, formulation 3) LY3039478 administered in one of two study periods

Interventions

NameTypeDescription
LY3039478DRUGAdministered orally
13C 15N 2H-LY3039478 IVDRUGAdministered IV
PlaceboDRUGAdministered orally
LY3039478 Capsule Formulation (Formulation 3)DRUGAdministered orally
LY3039478 Drug-in Capsule (Reference, Formulation 1)DRUGAdministered orally
LY3039478 Formulated Capsule (Test, Formulation 3)DRUGAdministered orally
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: \- Have a body mass index (BMI) of 18.5 to 32.0 kilogram per meter square (kg/m²) inclusive Exclusion Criteria: \- Have previously completed or withdrawn from this study or any other study investigating LY3039478, and have previously received the investigational product • Hav...

Countries:United KingdomUnited States
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Frequently asked questions about LY3039478 Formulation

What is LY3039478 used for?

LY3039478 is an investigational small molecule being studied for use in oncology. It has been evaluated in clinical trials for advanced solid tumors, neoplasms, lymphoma, and T-cell acute lymphoblastic leukemia. The drug is in Phase 1 clinical development and is not yet approved by regulatory authorities.

Who makes LY3039478?

LY3039478 is being developed by Eli Lilly and Company, a pharmaceutical company traded on the New York Stock Exchange under the ticker symbol LLY. The drug is currently in Phase 1 clinical trials and remains investigational.

What phase is LY3039478 in?

LY3039478 is in Phase 1 clinical development. All three clinical trials for the drug have been completed. It is an investigational agent and has not received regulatory approval for any indication.

What clinical trials has LY3039478 been in?

LY3039478 has been studied in three completed Phase 1 trials. NCT01695005 evaluated the drug in 247 participants with advanced cancer. NCT02659865 and NCT02906618 studied it in healthy participants, and NCT02917733 examined its absorption, distribution, metabolism, and excretion in healthy participants.

Is LY3039478 the same as any other drug?

LY3039478 is the primary identifier for this investigational compound. No alternative names for the drug have been disclosed in the clinical trial records. It is a small molecule being developed by Eli Lilly and Company for oncology indications.