A Study of Nonsteroidal Aromatase Inhibitors Plus Abemaciclib (LY2835219) in Postmenopausal Women With Breast Cancer (MONARCH 3)
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ClinicalTrials.gov Identifier: NCT02246621 |
Recruitment Status :
Active, not recruiting
First Posted : September 23, 2014
Results First Posted : March 23, 2018
Last Update Posted : March 18, 2024
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Sponsor:
Eli Lilly and Company
Information provided by (Responsible Party):
Eli Lilly and Company
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Study Type | Interventional |
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Study Design | Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: Double (Participant, Care Provider); Primary Purpose: Treatment |
Condition |
Breast Cancer |
Interventions |
Drug: Abemaciclib Drug: Anastrozole Drug: Letrozole Drug: Placebo |
Enrollment | 493 |
Participant Flow
Recruitment Details | |
Pre-assignment Details | Completers are participants who died. |
Arm/Group Title | Abemaciclib + NSAI (Nonsteroidal Aromatase Inhibitors) | Placebo + NSAI |
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Arm/Group Description | 150 milligrams (mg) Abemaciclib orally every 12 hours plus either 1 mg anastrozole or 2.5 mg letrozole orally once daily for 28 days (28 day cycles). | Placebo orally every 12 hours plus either 1 mg anastrozole or 2.5 mg letrozole orally once daily for 28 days (28 day cycles). |
Period Title: Overall Study | ||
Started | 328 | 165 |
Received At Least One Dose of Study Drug | 327 | 161 |
Completed | 63 | 30 |
Not Completed | 265 | 135 |
Reason Not Completed | ||
Withdrawal by Subject | 28 | 16 |
Lost to Follow-up | 1 | 0 |
On Study Treatment/ Follow Up | 236 | 119 |
Baseline Characteristics
Arm/Group Title | Abemaciclib + NSAI | Placebo + NSAI | Total | |
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Arm/Group Description | 150 milligrams (mg) Abemaciclib orally every 12 hours plus either 1 mg anastrozole or 2.5 mg letrozole orally once daily for 28 days (28 day cycles). | Placebo orally every 12 hours plus either 1 mg anastrozole or 2.5 mg letrozole orally once daily for 28 days (28 day cycles). | Total of all reporting groups | |
Overall Number of Baseline Participants | 328 | 165 | 493 | |
Baseline Analysis Population Description |
All randomized participants.
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Age, Continuous
Mean (Standard Deviation) Unit of measure: Years |
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Number Analyzed | 328 participants | 165 participants | 493 participants | |
63.13 (9.92) | 62.92 (9.96) | 63.05 (9.92) | ||
Sex: Female, Male
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 328 participants | 165 participants | 493 participants | |
Female | 328 | 165 | 493 | |
Male | 0 | 0 | 0 | |
Ethnicity (NIH/OMB)
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 328 participants | 165 participants | 493 participants | |
Hispanic or Latino | 32 | 12 | 44 | |
Not Hispanic or Latino | 230 | 125 | 355 | |
Unknown or Not Reported | 66 | 28 | 94 | |
Race (NIH/OMB)
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 328 participants | 165 participants | 493 participants | |
American Indian or Alaska Native | 4 | 3 | 7 | |
Asian | 103 | 45 | 148 | |
Native Hawaiian or Other Pacific Islander | 0 | 1 | 1 | |
Black or African American | 5 | 3 | 8 | |
White | 186 | 102 | 288 | |
More than one race | 2 | 0 | 2 | |
Unknown or Not Reported | 28 | 11 | 39 | |
Region of Enrollment
Measure Type: Count of Participants Unit of measure: Participants |
Number Analyzed | 328 participants | 165 participants | 493 participants |
Australia | 9 | 6 | 15 | |
Austria | 10 | 3 | 13 | |
Belgium | 14 | 7 | 21 | |
Canada | 14 | 11 | 25 | |
Germany | 11 | 5 | 16 | |
Spain | 16 | 14 | 30 | |
France | 30 | 11 | 41 | |
United Kingdom | 7 | 2 | 9 | |
Greece | 0 | 1 | 1 | |
Israel | 28 | 19 | 47 | |
Italy | 11 | 11 | 22 | |
Japan | 38 | 15 | 53 | |
South Korea | 41 | 18 | 59 | |
Mexico | 22 | 7 | 29 | |
Netherlands | 2 | 4 | 6 | |
New Zealand | 1 | 0 | 1 | |
Russia | 13 | 6 | 19 | |
Slovakia | 2 | 0 | 2 | |
Sweden | 3 | 1 | 4 | |
Turkey | 9 | 3 | 12 | |
Taiwan | 23 | 9 | 32 | |
United States | 24 | 12 | 36 |
Outcome Measures
Adverse Events
Limitations and Caveats
[Not Specified]
More Information
Results Point of Contact
Name/Title: | Chief Medical Officer |
Organization: | Eli Lilly and Company |
Phone: | 800-545-5979 |
EMail: | clinicaltrials.gov@lilly.com |
Publications of Results:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Eli Lilly and Company |
ClinicalTrials.gov Identifier: | NCT02246621 |
Other Study ID Numbers: |
15417 I3Y-MC-JPBM ( Other Identifier: Eli Lilly and Company ) 2014-001502-18 ( EudraCT Number ) |
First Submitted: | September 18, 2014 |
First Posted: | September 23, 2014 |
Results First Submitted: | January 31, 2018 |
Results First Posted: | March 23, 2018 |
Last Update Posted: | March 18, 2024 |