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LY3451838

Phase 2

Migraine | Small molecule | Neurology |Eli Lilly and Company|Last Updated: Sep 11, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment38

FDA Designations

No designations recorded

Clinical trial landscape

LY3451838 · 2 trials · 2 indications

Phase 2 1Phase 1 1
NCT04498910A Study of LY3451838 in Participants With MigraineMigraine
COMPLETED38 Analytics
PHASE2COMPLETED
A Study of LY3451838 in Participants With Migraine
MigraineUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline in the Number of Monthly Migraine Headache Days During 1-Month
Baseline, Month 1

Migraine Headache Day is a calendar day on which a migraine or probable migraine headache occurs. Per International Headache Society \[IHS\] International Classification of Headache Disorders version 3 \[ICHD-3\], migraine is defined as a headache, with or without aura, of \>=30 minutes duration with both of the following required features (A) At least 2 of the following headache characteristics: Unilateral location; Pulsatile quality; Moderate or severe pain intensity; Aggravation by or causing avoidance of routine physical activity (B) During headache at least 1 of the following: Nausea and/or vomiting; Photophobia and phonophobia. Least square mean was assessed using Bayesian Mixed Model Analysis with baseline number of monthly migraine headache days as a covariate.

Number of Participants With Any Treatment Emergent Adverse Event
Baseline through 20 Weeks

A summary of other non-serious Adverse Events (AE's), and all Serious Adverse Events (SAE's), regardless of causality, is located in the Reported Adverse Events section.

Number of Participants With One or More Serious Adverse Events
Baseline through 20 Weeks

A summary of other non-serious AEs, and all SAE's, regardless of causality, is located in the Reported Adverse Events section.

Secondary Endpoints

Change From Baseline in the Number of Monthly Headache Days During 3-Month
Baseline, Month 3
Percentage of Participants With ≥50% Reduction From Baseline in Monthly Migraine Headache Days
Month 1
Number of Participants With at Least One Treatment-emergent Adverse Events (TEAEs)
Baseline up to 5 Months
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
1500 milligrams (mg) LY3451838EXPERIMENTALParticipants received a single intravenous (IV) dose of 1500 mg LY3451838.
PlaceboPLACEBO_COMPARATORParticipants received a single IV dose of placebo.
25 milligram (mg) LY3451838 Part AEXPERIMENTAL25 mg LY3451838 single dose administered intravenously (IV)
75 mg LY3451838 Part AEXPERIMENTAL75 mg LY3451838 single dose administered IV.
250 mg LY3451838 Part AEXPERIMENTAL250 mg LY3451838 single dose administered IV.
500 mg LY3451838 Part AEXPERIMENTAL500 mg LY3451838 single dose administered IV.
1000 mg LY3451838 Part AEXPERIMENTAL1000 mg LY3451838 single dose administered IV.
1500 mg LY3451838 Part AEXPERIMENTAL1500 mg LY3451838 single dose administered IV.
250 mg LY3451838 Part BEXPERIMENTAL250 mg LY3451838 single dose administered subcutaneously (SC).

Interventions

NameTypeDescription
LY3451838DRUGAdministered IV
PlaceboDRUGAdministered IV
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites9

Inclusion Criteria: * Must have a diagnosis of migraine with a history of migraine headaches of at least 1 year prior, and migraine onset prior to age 50. * Have completed at least 80% of required daily diary entries during the start of the study. * Have documentation of previous failure of 2 to 4 ...

Countries:United StatesSingapore
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Competitive Landscape -Migraine 30 trials

Frequently asked questions about LY3451838

What is LY3451838 used for?

LY3451838 is an investigational small molecule being studied for use in healthy participants and in participants with migraine. It is currently in clinical development by Eli Lilly and Company and has not been approved by the FDA.

Who makes LY3451838?

LY3451838 is being developed by Eli Lilly and Company, a pharmaceutical company traded on the New York Stock Exchange under the ticker symbol LLY.

What phase is LY3451838 in?

LY3451838 has completed a Phase 1 trial in healthy participants and a Phase 2 trial in participants with migraine. Both trials are completed, and the drug remains investigational.

What clinical trials is LY3451838 in?

LY3451838 has been studied in two completed clinical trials. NCT03692949 was a Phase 1 study in healthy participants in Singapore, and NCT04498910 was a Phase 2 study in participants with migraine in the United States.

Is LY3451838 the same as any other drug?

LY3451838 is the primary name used for this investigational drug in clinical trials. No alternative names have been reported for this compound.