A Study of LY3484356 in Women With Breast Cancer Before Having Surgery

NCT ID: NCT04647487

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

87 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-04-21

Study Completion Date

2022-11-11

Brief Summary

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The purpose for this study is to see if the study drug, LY3484356, is safe and to determine what effects it has on breast cancer in participants with Estrogen Receptor Positive (ER+), HER2 Negative (HER2-) early stage (stage I-III) breast cancer, when given prior to surgery. Participation in this study could last up to 2.5 months.

Detailed Description

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Conditions

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Breast Cancer

Keywords

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SERD

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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200 milligrams (mg) LY3484356

Participants received 200 mg LY3484356 administered orally once daily for 15 days

Group Type EXPERIMENTAL

LY3484356

Intervention Type DRUG

Administered orally.

400 mg LY3484356

Participants received 400 mg LY3484356 administered orally once daily for 15 days

Group Type EXPERIMENTAL

LY3484356

Intervention Type DRUG

Administered orally.

800 mg LY3484356

Participants received 800 mg LY3484356 administered orally once daily for 15 days

Group Type EXPERIMENTAL

LY3484356

Intervention Type DRUG

Administered orally.

Interventions

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LY3484356

Administered orally.

Intervention Type DRUG

Other Intervention Names

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Imlunestrant

Eligibility Criteria

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Inclusion Criteria

* Have histologically confirmed invasive ER+, HER2- breast carcinoma
* Be willing and able to provide pre- and on-treatment tumor samples
* Have a performance status of 0 or 1 on the Eastern Cooperative Oncology Group scale
* Have adequate organ function
* Be able to swallow capsules
* Be a postmenopausal woman

Exclusion Criteria

* Have bilateral invasive breast cancer
* Have metastatic breast cancer
* Plan to receive concurrent neoadjuvant therapy with any other non-protocol anti-cancer therapy
* Have had prior therapy (of any kind) for an invasive or non-invasive breast cancer
* Have had prior radiotherapy to the ipsilateral chest wall for any malignancy
* Have had prior anti-estrogen therapy with raloxifene, tamoxifen, aromatase inhibitor, or other selective estrogen receptor modulator (SERM), either for osteoporosis or prevention of breast cancer
* Have had prior hormone-replacement therapy within 4 weeks of the start of study treatment
* Have had major surgery within 28 days prior to randomization to allow for post-operative healing of the surgical wound and site(s)
* Have certain infections such as hepatitis or tuberculosis or HIV that are not well controlled
* Have another serious medical condition
* Have a history of any other cancer (except nonmelanoma skin cancer or carcinoma in-situ of the cervix), unless in complete remission with no therapy for a minimum of 3 years
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

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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Winship Cancer Center Emory University

Atlanta, Georgia, United States

Site Status

Northwestern Memorial Hosptial

Chicago, Illinois, United States

Site Status

Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

Washington University School of Medicine

St Louis, Missouri, United States

Site Status

Sarah Cannon Research Institute SCRI

Nashville, Tennessee, United States

Site Status

Baylor College of Medicine

Houston, Texas, United States

Site Status

University of Texas MD Anderson Cancer Center

Houston, Texas, United States

Site Status

University of Vermont Medical Center

Burlington, Vermont, United States

Site Status

Institut Jules Bordet

Brussel - Capital, , Belgium

Site Status

Universitaire Ziekenhuizen Leuven - Campus Gasthuisberg

Leuven, , Belgium

Site Status

Hôpital René Huguenin

Saint-Cloud, Hauts-de-Seine, France

Site Status

Universitätsklinikum Erlangen

Erlangen, Bavaria, Germany

Site Status

Helios Kliniken Schwerin

Schwerin, Mecklenburg-Vorpommern, Germany

Site Status

Klinikum der Universitaet Muenchen

München, , Germany

Site Status

Hospital Clinic I Provincial

Barcelona, , Spain

Site Status

Hospital General Universitario Gregorio Marañon

Madrid, , Spain

Site Status

Hospital Madrid Norte Sanchinarro

Madrid, , Spain

Site Status

The Royal Cornwall Hospital

Truro, Cornwall, United Kingdom

Site Status

Barts Cancer Institute

London, London City, United Kingdom

Site Status

Countries

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United States Belgium France Germany Spain United Kingdom

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Related Links

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https://trials.lillytrialguide.com/en-US/trial/3vEdhySNhh4bT91vRoma1P

A Study of LY3484356 in Women With Breast Cancer Before Having Surgery (EMBER-2)

Other Identifiers

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J2J-MC-JZLB

Identifier Type: OTHER

Identifier Source: secondary_id

2020-002810-42

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

17575

Identifier Type: -

Identifier Source: org_study_id