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LY4066708

Phase 1

Healthy | Small molecule | Oncology |Eli Lilly and Company|Last Updated: Mar 3, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment104

FDA Designations

No designations recorded

Clinical trial landscape

LY4066708 · 1 trial · 2 indications

Phase 1 1
NCT07046559A Single- and Multiple-Ascending Dose Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of LY4066708 in Healthy ParticipantsHealthy
RECRUITING104 Analytics
PHASE1RECRUITING
A Single- and Multiple-Ascending Dose Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of LY4066708 in Healthy Participants
HealthyUnlock trial analytics

Study Endpoints

Primary Endpoints

Part A: Number of Participants with One or More Serious Adverse Events (SAEs) Considered by the Investigator to be Related to Study Drug Administration
Baseline up to Week 12

A 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 Events (SAEs) Considered by the Investigator to be Related to Study Drug Administration
Screening to Day 22

A summary of SAEs and other non-serious adverse events (AEs), regardless of causality, will be reported in the Adverse Events module

Secondary Endpoints

Part A: Pharmacokinetics (PK)- Area Under the Plasma Concentration Versus Time Curve (AUC0-168)
Predose up to day 15
Part B: Pharmacokinetics (PK)- AUC0-168
Day 1 up to day 7
Part A: Pharmacokinetics (PK)- Maximum Observed Drug Concentration (Cmax)
Predose up to day 15
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Part A Cohort 1: Single-Ascending Dose (SAD)- LY4066708EXPERIMENTALLY4066708 administered by intravenous (IV) injection
Part A Cohort 2: SAD- LY4066708EXPERIMENTALLY4066708 administered by IV injection
Part A Cohort 3A: SAD- LY4066708EXPERIMENTALLY4066708 administered by subcutaneous (SC) injection
Part A Cohort 3B: SAD- LY4066708EXPERIMENTALLY4066708 administered by SC injection
Part A Cohort 4: SAD- LY4066708EXPERIMENTALLY4066708 administered by IV injection
Part A Cohort 5: SAD- LY4066708EXPERIMENTALLY4066708 administered by IV injection
Part A Cohort 5A: SAD- LY4066708EXPERIMENTALLY4066708 administered by IV injection
Part A Cohort 6A: SAD- LY4066708EXPERIMENTALLY4066708 administered by IV injection
Part A Cohort 6: SAD- LY4066708EXPERIMENTALLY4066708 administered by IV injection
Part B Cohort 1: Multiple-Ascending Dose (MAD)- LY4066708EXPERIMENTALLY4066708 administered by IV injection
Part B Cohort 2: MAD- LY4066708EXPERIMENTALLY4066708 administered by IV injection
Part B Cohort 3: MAD- LY4066708EXPERIMENTALLY4066708 administered by IV injection
Part B Cohort 4: MAD- LY4066708EXPERIMENTALLY4066708 administered by IV injection
PlaceboPLACEBO_COMPARATORPlacebo administered by IV injection
Placebo- Part A Cohort 3A and Part A Cohort 3B.PLACEBO_COMPARATORPlacebo administered by SC injection

Interventions

NameTypeDescription
LY4066708DRUGAdministered IV
PlaceboDRUGAdministered IV
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring. * Japanese Participants Only: To qualify as a participant of first-generation Japanese origin, the participant, the participant's ...

Countries:United Kingdom
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Frequently asked questions about LY4066708

What is LY4066708?

LY4066708 is an investigational small molecule being developed by Eli Lilly and Company for oncology. It is currently in Phase 1 clinical development, with a trial evaluating its safety, tolerability, and pharmacokinetics in healthy participants. The drug is not yet approved and remains under clinical investigation.

What is LY4066708 used for?

LY4066708 is being studied for use in oncology, specifically in the context of cancer. The ongoing Phase 1 trial enrolls healthy participants, and the study conditions include both healthy volunteers and cancer. Its potential therapeutic application is in cancer treatment, though it is still in early-stage clinical development.

Who makes LY4066708?

LY4066708 is developed by Eli Lilly and Company, a pharmaceutical company traded on the stock exchange under the ticker LLY. The company is conducting a Phase 1 clinical trial to evaluate the drug's safety, tolerability, and pharmacokinetics in healthy participants.

What phase is LY4066708 in?

LY4066708 is in Phase 1 clinical development. The ongoing trial, NCT07046559, is a single- and multiple-ascending dose study in healthy participants. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still being studied for safety and tolerability.

What clinical trials is LY4066708 in?

LY4066708 is being evaluated in one clinical trial, NCT07046559, titled 'A Single- and Multiple-Ascending Dose Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of LY4066708 in Healthy Participants.' This Phase 1 trial is recruiting in the United Kingdom, with an enrollment of 104 participants, and is randomized, double-blind, and placebo-controlled.

Is LY4066708 the same as any other drug?

LY4066708 is the sole name provided for this investigational drug. No alternative names or aliases have been associated with it in the available information. It is a distinct small molecule being developed by Eli Lilly and Company for oncology indications.