A Study of Imlunestrant (LY3484356) in Healthy Women

NCT ID: NCT05509816

Last Updated: 2025-11-12

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-09-12

Study Completion Date

2022-11-30

Brief Summary

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The main purpose of this study is to evaluate the effect of imlunestrant (LY3484356) when administered orally on the levels of midazolam in the blood stream in healthy women of non-childbearing potential. The study will also evaluate the safety and tolerability of imlunestrant in healthy women of non-childbearing potential. This study will last up to approximately 6 weeks for each participant including the screening period.

Detailed Description

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Conditions

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Healthy

Study Design

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Allocation Method

NA

Intervention Model

CROSSOVER

This is a fixed sequence, crossover study
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Midazolam + Imlunestrant

Participants received 400 milligram (mg) Imlunestrant (2 × 200 mg) tablets administered once daily (QD) orally for 7 days on Days 3 to 9 and a single dose of 0.5 mg midazolam solution orally on Day 1 and Day 9 as per below dosing sequence:

Day 1: 0.5 mg midazolam alone Days 3 to 8: 400 mg imlunestrant QD alone Day 9: 0.5 mg midazolam + 400 mg imlunestrant There was a washout period of 8 days between doses of midazolam.

Group Type EXPERIMENTAL

Midazolam

Intervention Type DRUG

Administered orally.

Imlunestrant

Intervention Type DRUG

Administered orally.

Interventions

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Midazolam

Administered orally.

Intervention Type DRUG

Imlunestrant

Administered orally.

Intervention Type DRUG

Other Intervention Names

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LY3484356

Eligibility Criteria

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Inclusion Criteria

* Women not of childbearing potential
* Participants who are overtly healthy as determined by medical assessment
* Participants with body mass index (BMI) of 18.0 and 35.0 kilograms per meter squared (kg/m²), inclusive

Exclusion Criteria

* Have known allergies to imlunestrant, related compounds or any components of the formulation or midazolam
* Significant history or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, neurological, respiratory, endocrine, or psychiatric disorder
* Use or intend to use medications that are substrate drugs of P-glycoprotein
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Eli Lilly and Company

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST)

Role: STUDY_DIRECTOR

Eli Lilly and Company

Locations

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LabCorp CRU, Inc.

Daytona Beach, Florida, United States

Site Status

LabCorp CRU, Inc.

Dallas, Texas, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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J2J-MC-JZLK

Identifier Type: OTHER

Identifier Source: secondary_id

18416

Identifier Type: -

Identifier Source: org_study_id