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Completed Phase 3 Interventional Results available

Study to Assess the Safety and Efficacy of Ribociclib (LEE011) in Combination With Letrozole for the Treatment of Men and Pre/Postmenopausal Women With HR+ HER2- aBC

ClinicalTrials.gov ID: NCT02941926

Public ClinicalTrials.gov record NCT02941926. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 30, 2026, 6:58 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

COMPLEEMENT-1: An Open-label, Multicenter, Phase IIIb Study to Assess the Safety and Efficacy of Ribociclib (LEE011) in Combination With Letrozole for the Treatment of Men and Pre/Postmenopausal Women With Hormone Receptor-positive (HR+) HER2-negative (HER2-) Advanced Breast Cancer (aBC) With no Prior Hormonal Therapy for Advanced Disease

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to collect additional safety and efficacy data for the combination of ribociclib + letrozole in men and pre/postmenopausal women with HR+HER2- advanced breast cancer and no prior hormonal treatment for advanced disease..

Study identification

NCT ID
NCT02941926
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Novartis Pharmaceuticals
Industry
Enrollment
3,246 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 30, 2016 (Actual)
Primary completion
Nov 8, 2019 (Actual)
Completion
Nov 9, 2022 (Actual)
Last update posted
Oct 24, 2023

2016 – 2022

United States locations

U.S. sites
71
U.S. states
31
U.S. cities
69
Facility City State ZIP Site status
Alaska Cancer Research and Education Center Anchorage Alaska 99508 —
Ironwood Cancer and Research Centers Chandler Arizona 85224 —
Arizona Oncology Associates Phoenix Arizona 85016 —
Arizona Oncology Associates Arizona Oncology Assoc. (2) Tucson Arizona 85745 —
Highlands Oncology Group Fayetteville Arkansas 72703 —
Beverly Hills Cancer Center Beverly Hills California 90211 —
Pacific Shores Medical Group SC Long Beach California 90813 —
USC Norris Cancer Center Los Angeles California 90033 —
University of California Irvine UC Irvine (11) Orange California 92868 —
Ventura County Hematology and Oncology Oxnard California 93030 —
PCR Oncology Pismo Beach California 93449 —
California Pacific Medical Center Onc Dept San Francisco California 94120-7999 —
Centura Health Research Center Centura Health Research Center Denver Colorado 80210 —
Poudre Valley Hospital Poudre Valley Health System Fort Collins Colorado 80528 —
Valley View Hospital Cancer Center Glenwood Springs Colorado 81601 —
Florida Cancer Research Institute Dept of Oncology Davie Florida 33328 —
Foundation for Sickle Cell Disease Research Hollywood Florida 33021 —
Watson Clinic Center for Research 1730 Location Lakeland Florida 33805 —
Mid Florida Hematology and Onc Ctr Orange Florida 32763 —
Summit Cancer Care Summit Cancer Care (SC) Savannah Georgia 31405 —
John D Archbold Memorial Hospital John D. Archbold Mem Hosp (4) Thomasville Georgia 31792 —
Saint Alphonsus Regional Medical Center Boise Idaho 83706 —
Stroger Cook County Hospital Division of Hematology & Onc Chicago Illinois 60612 —
Joliet Oncology-Hematology Associates Presence Cancer Center Joliet Illinois 60435 —
Mid Illinois Hematology Oncology Mid Illinois Hema/Onc (3) Normal Illinois 61761 —
Alpha Med Physician Group, LLC Tinley Park Illinois 60487 —
Indian Univ Health Goshen Center forCancer SC Goshen Indiana 46526 —
Northwest Oncology Munster Indiana 46321 —
June E. Nylan Cancer Center Sioux City Iowa 51101 —
University of Kansas Medical Center University of Kansas Med Ctr 9 Kansas City Kansas 66160-7330 —
Sarah Cannon at Overland Park Regional Medical Center Overland Park Kansas 66209 —
John Ochsner Heart and Vascular Institute Clinical Trials New Orleans Louisiana 70121 —
Northern Light Mercy Hospital SC Portland Maine 04102 —
Greater Baltimore Medical Center Cancer Center Greater Baltimore Medical Ctr Baltimore Maryland 21204-6831 —
Maryland Oncology Hematology P A Columbia Rockville Maryland 20850 —
Kaiser Permanente Rockville Maryland 20879 —
Medical Faculty Assc Inc Medical Faculty Assc., Inc. (2 Washington DC Maryland 20037 —
Jackson Oncology Associates Jackson Mississippi 39202 —
Nebraska Hematology-Oncology, P.C. Lincoln Nebraska 68506 —
Nebraska Cancer Specialists Oncology Hematology West Omaha Nebraska 68154 —
Comprehensive Cancer Centers of Nevada CCC of Nevada Henderson (4) Henderson Nevada 89052 —
Trinitas Comprehensive Cancer Center Elizabeth New Jersey 07207 —
Englewood Health Englewood New Jersey 07631 —
The Valley Hospital / Luckow Pavillion Paramus New Jersey 07652 —
Somerset Hematology Oncology Associates Somerset Hematolgy Onc -MI Somerset New Jersey 08873 —
New Mexico Cancer Care Alliance . Albuquerque New Mexico 87106 —
San Juan Oncology Associates Farmington New Mexico 87401 —
Clinical Research Alliance Lake Success New York 11042 —
Eastchester Center for Cancer Care The Bronx New York 10469 —
Oncology Speciialists of Charlotte Charlotte North Carolina 28207 —
Aultman Cancer Center Main Centre Canton Ohio 44710 —
The Christ Hospital Cancer Center Research Program Linder Research Center Cincinnati Ohio 45219 —
University Hospitals of Cleveland Seidman Cancer Center Cleveland Medical Center Cleveland Ohio 44106 —
Cleveland Clinic Foundation Cleveland Clinic (5) Cleveland Ohio 44195 —
Dayton Physicians Kettering Ohio 45409 —
Oklahoma Cancer Specialists and Research Institute SC-2 Tulsa Oklahoma 74136 —
Oregon Health Sciences University SC-5 Portland Oregon 97239 —
McLeod Center for Cancer Treatment and Research Florence South Carolina 29506 —
Carolina Blood and Cancer Care of South Carolina Rock Hill South Carolina 29732 —
Millennium Research Clin Develop Millennium Oncology - FL Houston Texas 77090 —
Mays Cancer Ctr Uthsa Mdacc San Antonio Texas 78229 —
Hope Cancer Center of East Texas Tyler Texas 75701 —
Virginia Oncology Associates Norfolk Virginia 23502 —
PeaceHealth St Joseph Medical Center Bellingham Washington 98225 —
Providence Regional Medical Centre of Everett Everett Washington 98201 —
Kadlec Clinic Hematology and Onco Kennewick Washington 99336 —
Valley Medical Center Research Valley Medical Center Renton Washington 98055 —
Virginia Mason Medical Center-Oncology SC Seattle Washington 98101 —
Northwest Medical Specialties Dept.ofNW Med. Specialties Tacoma Washington 98405 —
Columbia St Mary s Hospital of Milwaukee St. Mary's Hospital Ozaukee Milwaukee Wisconsin 53211 —
Cheyenne Regional Medical Center Cheyenne Regional Med Ctr (3) Cheyenne Wyoming 82001 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 424 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02941926, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Oct 24, 2023 · Synced Oct 30, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT02941926 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →