A Study of Abemaciclib (LY2835219) Plus Hormone Therapy in Participants With Early Breast Cancer
Public ClinicalTrials.gov record NCT04752332. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
eMonarcHER: A Randomized, Double Blind, Placebo-Controlled Phase 3 Study of Abemaciclib Plus Standard Adjuvant Endocrine Therapy in Participants With High-Risk, Node-Positive, HR+, HER2+ Early Breast Cancer Who Have Completed Adjuvant HER2-Targeted Therapy
Study identification
- NCT ID
- NCT04752332
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Eli Lilly and Company
- Industry
- Enrollment
- 111 participants
Conditions and interventions
Conditions
Interventions
- Abemaciclib Drug
- Standard Adjuvant ET Drug
- Placebo Drug
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
- May 9, 2021
- Primary completion
- Jun 25, 2024
- Completion
- Jun 25, 2024
- Last update posted
- Jul 14, 2025
2021 – 2024
United States locations
- U.S. sites
- 13
- U.S. states
- 8
- U.S. cities
- 10
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Palo Verde Cancer Specialists | Glendale | Arizona | 85304 | — |
| TRIO-US (Translational Research in Oncology-US) | Los Angeles | California | 90024 | — |
| Millennium Oncology - Hollywood | Hollywood | Florida | 33024 | — |
| Florida Cancer Specialists - North | St. Petersburg | Florida | 33705 | — |
| Mt. Sinai Hospital PRiSMS | Chicago | Illinois | 60608 | — |
| Cornell-Beshore Cancer Institute | Joplin | Missouri | 64804 | — |
| The Valley Hospital | Ridgewood | New Jersey | 07450 | — |
| Sarah Cannon Research Institute SCRI | Nashville | Tennessee | 37203 | — |
| Texas Oncology - Medical City Dallas | Dallas | Texas | 75230 | — |
| Northwest Cancer Specialists PC | The Woodlands | Texas | 77380 | — |
| Texas Oncology - Medical City Dallas | The Woodlands | Texas | 77380 | — |
| US Oncology | The Woodlands | Texas | 77380 | — |
| USO-Southern Cancer Center, P.C. | The Woodlands | Texas | 77380 | — |
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 102 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04752332, 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 Jul 14, 2025 · Synced Jul 22, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04752332 live on ClinicalTrials.gov.