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A Study of Abemaciclib (LY2835219) in Women With HR+, HER2+ Locally Advanced or Metastatic Breast Cancer (monarcHER)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT02675231
Recruitment Status : Completed
First Posted : February 5, 2016
Results First Posted : May 26, 2020
Last Update Posted : March 19, 2024
Sponsor:
Information provided by (Responsible Party):
Eli Lilly and Company

Study Description
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Brief Summary:
The purpose of this study is to evaluate the effectiveness of abemaciclib plus trastuzumab with or without fulvestrant versus trastuzumab plus physicians choice standard of care chemotherapy in women with hormone receptor positive (HR+), human epidermal growth factor receptor 2 positive (HER2+) locally advanced or metastatic breast cancer after prior exposure to at least two HER2-directed therapies for advanced disease.

Condition or disease Intervention/treatment Phase
Hormone Receptor Positive Breast Cancer HER-2 Positive Breast Cancer Drug: Abemaciclib Drug: Trastuzumab Drug: Fulvestrant Drug: Standard of Care Single Agent Chemotherapy Phase 2

Expanded Access : An investigational treatment associated with this study is available outside the clinical trial.   More info ...

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 237 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: monarcHER: A Phase 2, Randomized, Multicenter, 3-Arm, Open-Label Study to Compare the Efficacy of Abemaciclib Plus Trastuzumab With or Without Fulvestrant to Standard-of-Care Chemotherapy of Physician's Choice Plus Trastuzumab in Women With HR+, HER2+ Locally Advanced or Metastatic Breast Cancer
Actual Study Start Date : May 23, 2016
Actual Primary Completion Date : April 8, 2019
Actual Study Completion Date : November 9, 2023

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Breast Cancer

Arms and Interventions
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Arm Intervention/treatment
Experimental: 150 mg Abemaciclib + 8 mg/kg Trastuzumab + 500 mg Fulvestrant
150 milligram (mg) abemaciclib given orally every 12 hours (Q12H) of a 21-day cycle; plus 8 milligram per kilogram (mg/kg) trastuzumab intravenous (IV) infusion on Day 1 of the cycle then a 6 mg/kg maintenance dose IV infusion on Day 1 of each subsequent cycle; plus 500 mg fulvestrant intramuscularly (IM) on day 1, 15 and 29 and then once every 4 weeks thereafter.
 Drug: Abemaciclib
Administered Orally
Other Name: LY2835219

Drug: Trastuzumab
Administered IV

Drug: Fulvestrant
Administered IM
Experimental: 150 mg Abemaciclib + 8 mg/kg Trastuzumab
150 mg abemaciclib given orally Q12H of a 21-day cycle; plus 8 mg/kg trastuzumab IV infusion on Day 1 of the cycle then a 6 mg/kg maintenance dose IV infusion on Day 1 of each subsequent cycle.
 Drug: Abemaciclib
Administered Orally
Other Name: LY2835219

Drug: Trastuzumab
Administered IV
Active Comparator: 8 mg/kg Trastuzumab + Standard of Care Chemotherapy
8 mg/kg trastuzumab IV infusion on Day 1 of a 21-day cycle then a 6 mg/kg maintenance dose IV infusion on Day 1 of each subsequent cycle plus standard of care single agent chemotherapy of physician's choice administered according to product label
 Drug: Trastuzumab
Administered IV

Drug: Standard of Care Single Agent Chemotherapy
Standard-of-care single-agent chemotherapy of physician's choice administered according to product label


Outcome Measures
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Primary Outcome Measures :
  1. Progression Free Survival (PFS) [ Time Frame: Baseline to Progressive Disease or Death from Any Cause (Up To 36 Months) ]
    PFS time was measured from the date of randomization to the date of investigator-determined objective progression as defined by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1, or death from any cause. Progressive Disease (PD) was at least a 20% increase in the sum of the diameters of target lesions, with reference being the smallest sum on study and an absolute increase of at least 5 mm, or unequivocal progression of non-target lesions, or 1 or more new lesions. If a participant does not have a complete baseline disease assessment, then the PFS time was censored at the date of first dose, regardless of whether or not objectively determined disease progression or death has been observed for the participant. If a participant was not known to have died or have objective progression as of the data inclusion cutoff date for the analysis, the PFS time was censored at the last adequate tumor assessment date.


Secondary Outcome Measures :
  1. Overall Survival (OS) [ Time Frame: Baseline to Death from Any Cause (Estimated up to 48 Months) ]
    OS defined as the time from first dose date to the date of death due to any cause. For each participant who is not known to have died as of the data-inclusion cutoff date for overall survival analysis, OS time was censored on the last date the participant is known to be alive.

  2. Percentage of Participants Achieving Complete Response (CR) or Partial Response (PR): Objective Response Rate (ORR) [ Time Frame: Baseline to Objective Disease Progression (Up To 36 Months) ]
    ORR was the percentage of participants achieving a best overall response (BOR) of complete response (CR) or partial response (PR) as per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. CR defined as the disappearance of all target and non-target lesions and no appearance of new lesions. PR defined as at least a 30% decrease in the sum of the longest diameters (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions, and no appearance of new lesions.

  3. Duration of Response (DoR) [ Time Frame: Date of CR or PR to Date of Objective Disease Progression or Death from Any Cause (Up To 36 Months) ]
    DoR was the time from the date of first evidence of complete response or partial response to the date of objective progression or the date of death due to any cause, whichever is earlier. CR and PR were defined using the RECIST v1.1. CR defined as the disappearance of all target and non-target lesions and no appearance of new lesions. PR defined as at least a 30% decrease in the sum of the LD of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions, and no appearance of new lesions. If a responder was not known to have died or have objective progression as of the data inclusion cutoff date, duration of response was censored at the last adequate tumor assessment date.

  4. Percentage of Participants With a Best Overall Response of CR, PR, or Stable Disease (SD): Disease Control Rate (DCR) [ Time Frame: Baseline to Objective Disease Progression (Up To 36 Months) ]
    Disease Control Rate (DCR) was the percentage of participants with a best overall response of CR, PR, or Stable Disease (SD) as per Response using RECIST v1.1 criteria. CR defined as the disappearance of all target and non-target lesions and no appearance of new lesions. PR defined as at least a 30% decrease in the sum of the LD of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions, and no appearance of new lesions. SD was neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD for target lesions, no progression of non-target lesions, and no appearance of new lesions.

  5. Percentage of Participants With Best Overall Response of CR, PR, or SD With Duration of SD for at Least 6 Months: Clinical Benefit Rate (CBR) [ Time Frame: Date of CR, PR or SD to 6 Months Post CR, PR or SD (Up To 36 Months) ]
    Clinical benefit rate defined as percentage of participants with best overall response of CR, PR, or SD with a duration of at least 6 months. CR, PR, or SD were defined using RECIST, v1.1 criteria. CR defined as the disappearance of all target and non-target lesions and no appearance of new lesions. PR defined as at least a 30% decrease in the sum of the LD of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions, and no appearance of new lesions. SD was neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD for target lesions, no progression of non-target lesions, and no appearance of new lesions. Percentage of participants = (participants with CR+PR+SD with a duration of at least 6 months /number of participants enrolled) *100.

  6. Change From Baseline in Pain and Symptom Burden Assessment on the Modified Brief Pain Inventory-Short Form (mBPI-sf) [ Time Frame: Baseline, 30 Days After Treatment Discontinuation (Up To 36 Months) ]
    The mBPI-sf is an 11-item instrument used as a multiple-item measure of cancer pain intensity. In addition to pain intensity (4 items), the mBPI-sf is designed for participants to record the presence of pain in general, pain relief, and pain interference with function (general activity, mood, ability to walk, ability to perform normal work, relations with others, sleep, enjoyment of life). Responses for the mBPI-sf items are captured through the use of 11-point numeric rating scales anchored at 0 (no pain or does not interfere) and 10 (pain as bad as you can imagine or completely interferes). The mBPI-sf recall period is 24 hours and typical completion time for this instrument is less than 5 minutes. Mean Interference Score data is reported here. Least square (LS) Mean value was controlled for Treatment, visit, Treatment*Visit and baseline.

  7. Change From Baseline in Symptom Burden on the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-C30 (EORTC QLQ-C30) [ Time Frame: Baseline, 30 Days After Treatment Discontinuation (Up To 36 Months) ]
    EORTC QLQ-C30 v3.0 was a self-administered questionnaire with multidimensional scales that measures 5 functional domains (physical, role, cognitive, emotional, and social), global health status, and symptom scales of fatigue, pain, nausea and vomiting, dyspnea, loss of appetite, insomnia, constipation and diarrhea, and financial difficulties. A linear transformation is applied to standardize the raw scores to range between 0 and 100 per developer guidelines. For functional domains and global health status, higher scores represent a better level of functioning. For symptoms scales, higher scores represented a greater degree of symptoms. LS Mean value was controlled for Treatment, visit, Treatment*Visit and baseline.

  8. Change From Baseline on the EuroQol 5-Dimension, 5-Level Questionnaire (EQ-5D-5L) Index Score [ Time Frame: Baseline, 30 Days After Treatment Discontinuation (Up To 36 Months) ]
    The EQ-5D-5L is a standardized instrument for use as a measure of self-reported health status. Participants completed the 5-level (no problem, slight problem, moderate problem, severe problem, and inability or extreme problem), 5-dimension (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression) questionnaire concerning their current health state. Five dimensions of health status are each assessed with 5 response options and scored as a composite index which were anchored on a scale of 0 to 1 with a higher score representing better health status.LS Mean value was controlled for Treatment, visit, Treatment*Visit and baseline.

  9. Change From Baseline on the EuroQol 5-Dimension, 5-Level Questionnaire (EQ-5D-5L) Visual Analogue Scale (VAS) [ Time Frame: Baseline, 30 Days After Treatment Discontinuation (Up To 36 Months) ]
    European Quality of Life-5 Dimensions-5 Level (EQ-5D-5L) is a standardized measure of health status of the participant. The EQ-5D-5L is assessed using a visual analog scale (VAS) that ranged from 0 to 100 millimeter (mm), where 0 is the worst health you can imagine and 100 is the best health you can imagine. A higher score indicates better health state. LS Mean value was controlled for Treatment, visit, Treatment*Visit and baseline.

  10. Pharmacokinetics (PK): Minimum Steady State Concentration (Cmin,ss) of Abemaciclib and Its Metabolites (M2 and M20) [ Time Frame: Cycle(C)1 Day(D)1,C1D15, C2D1, C2D8, C3D1,C3D15, C4D1, C5D1:pre-dose; C1D1, C2D1, C3D1, C4D1, C5D1:post-dose ]
    Minimum Steady State Concentration (Cmin,ss) of Abemaciclib and Its Metabolites (M2 and M20) was evaluated. M2 and M20 are 2 major active metabolites of abemaciclib.


Eligibility Criteria
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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • diagnosis of HR+, HER2+ breast cancer (BC)
  • unresectable locally advanced recurrent BC or metastatic BC
  • adequate tumor tissue available prior to randomization
  • measurable and/or non-measurable disease according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1

  • previously received:

    • at least 2 HER2-directed therapies for advanced disease
    • participant must have received trastuzumab emtansine (T-DM1) in any disease setting
  • must have received a taxane in any disease setting
  • may have received any endocrine therapy (excluding fulvestrant)
  • have postmenopausal status due to surgical / natural menopause or chemical ovarian suppression
  • performance status (PS) of 0 to 1 on the Eastern Cooperative Oncology Group scale
  • left ventricular ejection fraction (LVEF) of 50% or higher at baseline
  • adequate organ function
  • negative serum pregnancy test at baseline (within 14 days prior to randomization) and agree to use medically approved precautions to prevent pregnancy during the study and for 12 weeks following the last dose of abemaciclib if menopause induced by gonadotropin-releasing hormone (GnRH) agonist or radiation
  • discontinued previous localized radiotherapy for palliative purposes or for lytic lesions at risk of fracture at least 2 weeks prior to randomization and recovered from the acute effects of therapy
  • discontinued all previous therapies for cancer (including chemotherapy, radiotherapy, immunotherapy, and endocrine therapy), except trastuzumab, for at least 21 days for myelosuppressive agents or 14 days for nonmyelosuppressive agents prior to receiving study drug, and recovered from the acute effects of therapy
  • are able to swallow capsules

Exclusion Criteria:

  • have visceral crisis
  • known central nervous system (CNS) metastases that are untreated, symptomatic, or require steroids to control symptoms
  • had major surgery within 14 days prior to randomization
  • received prior treatment with any cyclin-dependent kinase (CDK) 4 and CDK 6 inhibitor
  • received treatment with a drug that has not received regulatory approval for any indication within 14 or 21 days of randomization for a nonmyelosuppressive or myelosuppressive agent, respectively
  • have serious preexisting medical conditions that, in the judgment of the investigator, would preclude participation in this study
  • history within the last 6 months of symptomatic congestive heart failure, myocardial infarction, or unstable angina
  • history within the last 12 months of any of the following conditions: syncope of cardiovascular etiology, ventricular tachycardia, ventricular fibrillation, or sudden cardiac arrest
  • history of any other cancer (except non-melanoma skin cancer or carcinoma in-situ of the cervix), unless in complete remission with no therapy for a minimum of 3 years
  • active bacterial, fungal infection, or detectable viral infection
  • have received any recent (within 28 days prior to randomization) live virus vaccination
  • hypersensitivity to trastuzumab, murine proteins, fulvestrant, or to any of the excipients
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02675231


Locations
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Sponsors and Collaborators
Eli Lilly and Company
Investigators
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Study Director: 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) Eli Lilly and Company
  Study Documents (Full-Text)

Documents provided by Eli Lilly and Company:
Study Protocol  [PDF] January 23, 2019
Statistical Analysis Plan  [PDF] February 8, 2019

More Information
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Additional Information:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: Eli Lilly and Company
ClinicalTrials.gov Identifier: NCT02675231    
Other Study ID Numbers: 15804
I3Y-MC-JPBZ ( Other Identifier: Eli Lilly and Company )
2015-003400-24 ( EudraCT Number )
First Posted: February 5, 2016    Key Record Dates
Results First Posted: May 26, 2020
Last Update Posted: March 19, 2024
Last Verified: March 2024
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement.
Supporting Materials: Study Protocol
Statistical Analysis Plan (SAP)
Clinical Study Report (CSR)
Time Frame: Data are available 6 months after the primary publication and approval of the indication studied in the US and european union (EU), whichever is later. Data will be indefinitely available for requesting.
Access Criteria: A research proposal must be approved by an independent review panel and researchers must sign a data sharing agreement.
URL: https://vivli.org/
Additional relevant MeSH terms:
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Breast Neoplasms
Neoplasms by Site
Neoplasms
Breast Diseases
Skin Diseases
Trastuzumab
Fulvestrant
Antineoplastic Agents, Immunological
 Antineoplastic Agents
Antineoplastic Agents, Hormonal
Estrogen Receptor Antagonists
Estrogen Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs