Letrozole Plus Ribociclib or Placebo as Neo-adjuvant Therapy in ER-positive, HER2-negative Early Breast Cancer

NCT ID: NCT02712723

Last Updated: 2022-09-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

121 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-02-29

Study Completion Date

2023-04-30

Brief Summary

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The purpose of this study is to determine if ribociclib in combination with letrozole for 24 weeks as neoadjuvant endocrine therapy increases the proportion of women with Pre-operative Endocrine Prognostic Index (PEPI) score of 0 at surgery compared to patients treated with letrozole alone therefore allowing more patients excellent outcomes without chemotherapy.

Detailed Description

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Subjects will be randomized (1:1:1) to either letrozole plus placebo vs. letrozole plus continuous dosing of ribociclib vs. letrozole plus intermittent dosing (3-weeks-on/1-week-off) of ribociclib.

The difference in clinical, pathologic and radiologic response as well as Pre-operative Endocrine Prognostic Index (PEPI) scores across the three treatments arms will be examined. Subjects will also be followed for 5 years post-treatment to determine if ribociclib in combination with letrozole for 24 weeks results in improved 5 year Relapse Free Survival (RFS) compared to letrozole alone.

Conditions

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Breast Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Placebo + Letrozole

Placebo randomized to 3 capsules/day 3 weeks on/1week off or 2 capsules/day continuous dosing + Letrozole 2.5 mg PO daily

Group Type ACTIVE_COMPARATOR

Letrozole

Intervention Type DRUG

Nonsteroidal aromatase inhibitor

Placebo

Intervention Type DRUG

Placebo for ribociclib

Ribociclib 600 mg + Letrozole

Ribociclib 600 mg PO daily 21 days on/7 days off + Letrozole 2.5 mg PO daily

Group Type EXPERIMENTAL

Letrozole

Intervention Type DRUG

Nonsteroidal aromatase inhibitor

Ribociclib

Intervention Type DRUG

Oral cyclin-dependent kinase (CDK) inhibitor

Ribociclib 400 mg + Letrozole

Ribociclib 400 mg continuous daily dosing + Letrozole 2.5 mg PO daily

Group Type EXPERIMENTAL

Letrozole

Intervention Type DRUG

Nonsteroidal aromatase inhibitor

Ribociclib

Intervention Type DRUG

Oral cyclin-dependent kinase (CDK) inhibitor

Interventions

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Letrozole

Nonsteroidal aromatase inhibitor

Intervention Type DRUG

Ribociclib

Oral cyclin-dependent kinase (CDK) inhibitor

Intervention Type DRUG

Placebo

Placebo for ribociclib

Intervention Type DRUG

Other Intervention Names

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Femara CGS 20267 LTZ LEE011 LEE-011

Eligibility Criteria

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Inclusion Criteria

* Pathologically confirmed invasive breast cancer by core needle biopsy
* Female subjects, age ≥ 18 years
* Only postmenopausal women will be eligible.
* Performance Status: Eastern Cooperative Oncology Group (ECOG) score 0-2
* Invasive breast cancer must be ER+ in ≥66 % of the cells or ER Allred score 6-8
* Invasive breast cancer must be HER2 negative.
* Clinical Stage II or III (by clinical measurement and/or breast imaging)

Exclusion Criteria

* Current use of other investigational agents
* Inflammatory breast cancer defined as clinically significant erythema of the breast and/or documented dermal lymphatic invasion (not direct skin invasion by tumor or peau d'orange without erythema)
* An excisional biopsy of this breast cancer
* Surgical axillary staging procedure prior to study entry
* Hormone replacement therapy of any type, megestrol acetate, or raloxifene within four weeks prior to first study treatment
* Clinical or radiographic evidence of metastatic disease
* Clinically significant, uncontrolled heart disease
* Herbal preparations/medications as listed in Appendix B of the protocol
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Novartis Pharmaceuticals

INDUSTRY

Sponsor Role collaborator

Qamar Khan

OTHER

Sponsor Role lead

Responsible Party

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Qamar Khan

Associate Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Qamar Khan, MD

Role: PRINCIPAL_INVESTIGATOR

University of Kansas Medical Center

Locations

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University of Arkansas for Medical Sciences

Little Rock, Arkansas, United States

Site Status

City of Hope National Medical Center

Duarte, California, United States

Site Status

Cancer Research Collaboration

Santa Ana, California, United States

Site Status

University of Miami Sylvester Comprehensive Cancer Center

Deerfield Beach, Florida, United States

Site Status

University of Kansas Cancer Center - West

Kansas City, Kansas, United States

Site Status

University of Kansas Cancer Center - Overland Park

Overland Park, Kansas, United States

Site Status

University of Kansas Cancer Center - Westwood

Westwood, Kansas, United States

Site Status

Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

University of Kansas Cancer Center - South

Kansas City, Missouri, United States

Site Status

University of Kansas Cancer Center - North

Kansas City, Missouri, United States

Site Status

University of Kansas Cancer Center - Lee's Summit

Lee's Summit, Missouri, United States

Site Status

Columbia University Medical Center

New York, New York, United States

Site Status

University of Wisconsin Carbone Cancer Center

Madison, Wisconsin, United States

Site Status

Countries

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United States

Other Identifiers

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CLEE011XUS10T

Identifier Type: -

Identifier Source: org_study_id

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